Update metadata

.github/workflows/build.yml

@@ -0,0 +1,43 @@
+on: [push, pull_request]
+name: Build
+jobs:
+  cli:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    - name: Install Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: stable
+    - name: Build
+      run: go build -v ./...
+      working-directory: cmd/cbconvert
+      env:
+        CGO_ENABLED: 1
+
+  gui:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    - name: Install Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: stable
+    - name: Install dependencies
+      if: runner.os == 'Linux'
+      run: sudo apt-get update -y && sudo apt-get install -y libgtk-3-dev
+    - name: Build
+      run: go build -v ./...
+      working-directory: cmd/cbconvert-gui
+      env:
+        CGO_ENABLED: 1

.github/workflows/test.yml

@@ -5,19 +5,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: [1.23.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
-    env:
-      CGO_ENABLED: 0
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
     - name: Install Go
       uses: actions/setup-go@v5
       with:
-        go-version: ${{ matrix.go-version }}
+        go-version: stable
     - name: Test
-      run: go test
+      run: go test -v ./...
       env:
         CGO_ENABLED: 1

README.md

@@ -26,6 +26,23 @@ Download the latest binaries from the [releases](https://github.com/gen2brain/cb
 
 Linux Flatpak is available at [Flathub](https://flathub.org/apps/io.github.gen2brain.cbconvert).
 
+### Compile
+
+You must have `CGO_ENABLED=1`. Note that `Go` will disable cgo when cross-compiling.
+
+Install to `GOBIN` (you can point `GOBIN` to e.g. `/usr/local/bin` or `~/.local/bin`):
+
+`go install github.com/gen2brain/cbconvert/cmd/cbconvert@latest`
+
+For GUI app, check [IUP](https://github.com/gen2brain/iup-go) requirements, and then install:
+
+`go install github.com/gen2brain/cbconvert/cmd/cbconvert-gui@latest`
+
+### Build tags
+
+* `extlib` - use external `libmupdf` library
+* `pkgconfig` - enable pkg-config (used with `extlib`)
+
 ### Using cbconvert in file managers to generate FreeDesktop thumbnails
 
 Copy/install `cbconvert` cli binary to your `PATH`, create file `~/.local/share/thumbnailers/cbconvert.thumbnailer`
@@ -39,115 +56,149 @@ This is what it looks like in the `PCManFM` file manager:
 ### Using command line app
 
 ```
-    Usage: cbconvert <command> [<flags>] [file1 dir1 ... fileOrDirN]
+Usage: cbconvert <command> [<flags>] [file1 dir1 ... fileOrDirN]
 
 
-    Commands:
+Commands:
 
-      convert
+  convert
-            Convert archive or document
+    	Convert archive or document
 
-        --width
+    --profile
-            Image width (default "0")
+    	Load a saved GUI profile as defaults; explicit flags still override (default "")
-        --height
+    --width
-            Image height (default "0")
+    	Image width (default "0")
-        --fit
+    --height
-            Best fit for required width and height (default "false")
+    	Image height (default "0")
-        --format
+    --fit
-            Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl (default "jpeg")
+    	Best fit for required width and height (default "false")
-        --archive
+    --no-upscale
-            Archive format, valid values are zip, tar (default "zip")
+    	Do not upscale images already smaller than the requested width/height (default "false")
-        --quality
+    --dpi
-            Image quality (default "75")
+    	Document rendering resolution in DPI (PDF, EPUB, etc.), 0 uses the default (300) (default "0")
-        --filter
+    --format
-            0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
+    	Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl (default "jpeg")
-        --no-cover
+    --archive
-            Do not convert the cover image (default "false")
+    	Archive format, valid values are zip, tar (default "zip")
-        --no-rgb
+    --zip-level
-            Do not convert images that have RGB colorspace (default "false")
+    	ZIP compression level, 0 disables compression, 1-9 sets deflate level (1 fastest, 9 smallest), -1 uses the default (default "-1")
-        --no-nonimage
+    --quality
-            Remove non-image files from the archive (default "false")
+    	Image quality (default "75")
-        --no-convert
+    --effort
-            Do not transform or convert images (default "false")
+    	Encoder speed/effort, format-specific (webp method 0-6, avif speed 0-10, jxl effort 1-10), -1 uses the format default (default "-1")
-        --grayscale
+    --lossless
-            Convert images to grayscale (monochromatic) (default "false")
+    	Lossless compression (webp, avif, jxl), ignores quality (default "false")
-        --rotate
+    --combine
-            Rotate images, valid values are 0, 90, 180, 270 (default "0")
+    	Combine all inputs into a single archive (default "false")
-        --brightness
+    --outfile
-            Adjust the brightness of the images, must be in the range (-100, 100) (default "0")
+    	Output file name for --combine (default: first input + -combined) (default "")
-        --contrast
+    --filter
-            Adjust the contrast of the images, must be in the range (-100, 100) (default "0")
+    	0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 5=Gaussian, 6=Lanczos (default "2")
-        --suffix
+    --no-cover
-            Add suffix to file basename (default "")
+    	Do not convert the cover image (default "false")
-        --outdir
+    --no-rgb
-            Output directory (default ".")
+    	Do not convert images that have RGB colorspace (default "false")
-        --size
+    --no-nonimage
-            Process only files larger than size (in MB) (default "0")
+    	Remove non-image files from the archive (default "false")
-        --recursive
+    --no-convert
-            Process subdirectories recursively (default "false")
+    	Do not transform or convert images (default "false")
-        --quiet
+    --grayscale
-            Hide console output (default "false")
+    	Convert images to grayscale (monochromatic) (default "false")
+    --rotate
+    	Rotate images, valid values are 0, 90, 180, 270 (default "0")
+    --brightness
+    	Adjust the brightness of the images, must be in the range (-100, 100) (default "0")
+    --contrast
+    	Adjust the contrast of the images, must be in the range (-100, 100) (default "0")
+    --suffix
+    	Add suffix to file basename (default "")
+    --outdir
+    	Output directory (default ".")
+    --size
+    	Process only files larger than size (in MB) (default "0")
+    --recursive
+    	Process subdirectories recursively (default "false")
+    --quiet
+    	Hide console output (default "false")
 
-      cover
+  cover
-            Extract cover
+    	Extract cover
 
-        --width
+    --profile
-            Image width (default "0")
+    	Load a saved GUI profile as defaults; explicit flags still override (default "")
-        --height
+    --width
-            Image height (default "0")
+    	Image width (default "0")
-        --fit
+    --height
-            Best fit for required width and height (default "false")
+    	Image height (default "0")
-        --format
+    --fit
-            Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl (default "jpeg")
+    	Best fit for required width and height (default "false")
-        --quality
+    --no-upscale
-            Image quality (default "75")
+    	Do not upscale images already smaller than the requested width/height (default "false")
-        --filter
+    --dpi
-            0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
+    	Document rendering resolution in DPI (PDF, EPUB, etc.), 0 uses the default (300) (default "0")
-        --outdir
+    --format
-            Output directory (default ".")
+    	Image format, valid values are jpeg, png, tiff, bmp, webp, avif (default "jpeg")
-        --size
+    --quality
-            Process only files larger than size (in MB) (default "0")
+    	Image quality (default "75")
-        --recursive
+    --effort
-            Process subdirectories recursively (default "false")
+    	Encoder speed/effort, format-specific (webp method 0-6, avif speed 0-10, jxl effort 1-10), -1 uses the format default (default "-1")
-        --quiet
+    --lossless
-            Hide console output (default "false")
+    	Lossless compression (webp, avif, jxl), ignores quality (default "false")
+    --filter
+    	0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 5=Gaussian, 6=Lanczos (default "2")
+    --outdir
+    	Output directory (default ".")
+    --size
+    	Process only files larger than size (in MB) (default "0")
+    --recursive
+    	Process subdirectories recursively (default "false")
+    --quiet
+    	Hide console output (default "false")
 
-      thumbnail
+  thumbnail
-            Extract cover thumbnail (freedesktop spec.)
+    	Extract cover thumbnail (freedesktop spec.)
 
-        --width
+    --profile
-            Image width (default "0")
+    	Load a saved GUI profile as defaults; explicit flags still override (default "")
-        --height
+    --width
-            Image height (default "0")
+    	Image width (default "0")
-        --fit
+    --height
-            Best fit for required width and height (default "false")
+    	Image height (default "0")
-        --filter
+    --fit
-            0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
+    	Best fit for required width and height (default "false")
-        --outdir
+    --no-upscale
-            Output directory (default ".")
+    	Do not upscale images already smaller than the requested width/height (default "false")
-        --outfile
+    --dpi
-            Output file (default "")
+    	Document rendering resolution in DPI (PDF, EPUB, etc.), 0 uses the default (300) (default "0")
-        --size
+    --filter
-            Process only files larger than size (in MB) (default "0")
+    	0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 5=Gaussian, 6=Lanczos (default "2")
-        --recursive
+    --outdir
-            Process subdirectories recursively (default "false")
+    	Output directory (default ".")
-        --quiet
+    --outfile
-            Hide console output (default "false")
+    	Output file (default "")
+    --size
+    	Process only files larger than size (in MB) (default "0")
+    --recursive
+    	Process subdirectories recursively (default "false")
+    --quiet
+    	Hide console output (default "false")
 
-      meta
+  meta
-            CBZ metadata
+    	CBZ metadata
 
-        --cover
+    --cover
-            Print cover name (default "false")
+    	Print cover name (default "false")
-        --comment
+    --comment
-            Print zip comment (default "false")
+    	Print zip comment (default "false")
-        --comment-body
+    --comment-body
-            Set zip comment (default "")
+    	Set zip comment (default "")
-        --file-add
+    --file-add
-            Add file to archive (default "")
+    	Add file to archive (default "")
-        --file-remove
+    --file-remove
-            Remove file(s) from archive (glob pattern, i.e. *.xml) (default "")
+    	Remove file from archive (glob pattern, i.e. *.xml) (default "")
 
+  version
+    	Print version
 ```
 
 ### Examples
@@ -170,6 +221,10 @@ This is what it looks like in the `PCManFM` file manager:
 
 `cbconvert --format avif --quality 50 --width 1280 --outdir ~/comics /media/comics/Misc/`
 
+* Combine several issues into a single archive:
+
+`cbconvert convert --combine --outfile Series.cbz --outdir ~/comics issue1.cbz issue2.cbr issue3.cb7`
+
 ### Quality settings
 
 This table maps quality settings for JPEG to the respective AVIF and WEBP quality settings:
@@ -180,19 +235,3 @@ This table maps quality settings for JPEG to the respective AVIF and WEBP qualit
 | AVIF quality | 48 | 51 | 56 | 64 |
 | WEBP quality | 55 | 64 | 72 | 82 |
 
-### Compile
-
-You must have `CGO_ENABLED=1`. Note that `Go` will disable cgo when cross-compiling.
-
-Install to `GOBIN` (you can point `GOBIN` to e.g. `/usr/local/bin` or `~/.local/bin`):
-
-`go install github.com/gen2brain/cbconvert/cmd/cbconvert@latest`
-
-For GUI app, check [IUP](https://github.com/gen2brain/iup-go) requirements, and then install:
-
-`go install github.com/gen2brain/cbconvert/cmd/cbconvert-gui@latest`
-
-### Build tags
-
-* `extlib` - use external `libmupdf` and `libunarr` libraries
-* `pkgconfig` - enable pkg-config (used with `extlib`)

cbconvert.go

@@ -15,6 +15,7 @@ import (
 
 	pngstructure "github.com/dsoprea/go-png-image-structure"
 	"github.com/dustin/go-humanize"
+	"github.com/gen2brain/go-fitz"
 )
 
 // Options type.
@@ -23,15 +24,27 @@ type Options struct {
 	Format string
 	// Archive format, valid values are zip, tar
 	Archive string
+	// ZIP compression level: -1 default, 0 store (no compression), 1-9 deflate (1 fastest, 9 smallest)
+	ZipLevel int
 	// JPEG image quality
 	Quality int
+	// Encoder speed/effort, format-specific: webp method 0-6, avif speed 0-10, jxl effort 1-10; -1 uses the format default
+	Effort int
+	// Combine all inputs into a single archive
+	Combine bool
+	// Lossless enables lossless compression (webp, avif, jxl), ignores quality
+	Lossless bool
 	// Image width
 	Width int
 	// Image height
 	Height int
 	// Best fit for required width and height
 	Fit bool
-	// 0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos
+	// Do not upscale images already smaller than the requested width/height
+	NoUpscale bool
+	// Document rendering resolution in DPI (PDF, EPUB, etc.); 0 uses the page's native resolution
+	DPI int
+	// 0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 5=Gaussian, 6=Lanczos
 	Filter int
 	// Do not convert the cover image
 	NoCover bool
@@ -85,9 +98,15 @@ type Converter struct {
 	Opts Options
 	// Current working directory
 	Workdir string
+	// Page name prefix, set per input when combining
+	prefix string
+	// Input root for the current file, used to build recursive output paths
+	root string
+	// Target size for fast previews; when set, JPEG covers are IDCT-downscaled while decoding
+	previewWidth, previewHeight int
 	// Number of files
 	Nfiles int
-	// Index of current file
+	// Index of the current file
 	CurrFile int
 	// Number of contents in archive/document
 	Ncontents int
@@ -107,6 +126,7 @@ type Converter struct {
 type File struct {
 	Name      string
 	Path      string
+	Root      string
 	Stat      os.FileInfo
 	SizeHuman string
 }
@@ -125,6 +145,8 @@ func NewOptions() Options {
 	o.Format = "jpeg"
 	o.Archive = "zip"
 	o.Quality = 75
+	o.Effort = -1
+	o.ZipLevel = -1
 	o.Filter = 2
 
 	return o
@@ -138,6 +160,68 @@ func New(o Options) *Converter {
 	return c
 }
 
+// Args returns the non-default options as cbconvert convert command-line flags.
+func (o Options) Args() []string {
+	def := NewOptions()
+
+	var args []string
+
+	str := func(name, val, dflt string) {
+		if val != dflt {
+			args = append(args, "--"+name, val)
+		}
+	}
+	num := func(name string, val, dflt int) {
+		if val != dflt {
+			args = append(args, "--"+name, strconv.Itoa(val))
+		}
+	}
+	flag := func(name string, val bool) {
+		if val {
+			args = append(args, "--"+name)
+		}
+	}
+
+	num("width", o.Width, def.Width)
+	num("height", o.Height, def.Height)
+	flag("fit", o.Fit)
+	flag("no-upscale", o.NoUpscale)
+	num("dpi", o.DPI, def.DPI)
+	str("format", o.Format, def.Format)
+	str("archive", o.Archive, def.Archive)
+	num("zip-level", o.ZipLevel, def.ZipLevel)
+	num("quality", o.Quality, def.Quality)
+	num("effort", o.Effort, def.Effort)
+	flag("lossless", o.Lossless)
+	flag("combine", o.Combine)
+	str("outfile", o.OutFile, def.OutFile)
+	num("filter", o.Filter, def.Filter)
+	flag("no-cover", o.NoCover)
+	flag("no-rgb", o.NoRGB)
+	flag("no-nonimage", o.NoNonImage)
+	flag("no-convert", o.NoConvert)
+	str("suffix", o.Suffix, def.Suffix)
+	flag("grayscale", o.Grayscale)
+	num("rotate", o.Rotate, def.Rotate)
+	num("brightness", o.Brightness, def.Brightness)
+	num("contrast", o.Contrast, def.Contrast)
+	flag("recursive", o.Recursive)
+	str("outdir", o.OutDir, def.OutDir)
+	num("size", o.Size, def.Size)
+
+	return args
+}
+
+// renderPage renders document page n at the configured DPI, or at the page's
+// native resolution when DPI is unset.
+func (c *Converter) renderPage(doc *fitz.Document, n int) (*image.RGBA, error) {
+	if c.Opts.DPI > 0 {
+		return doc.ImageDPI(n, float64(c.Opts.DPI))
+	}
+
+	return doc.Image(n)
+}
+
 // Cancel cancels the operation.
 func (c *Converter) Cancel() {
 	if c.OnCancel != nil {
@@ -148,11 +232,13 @@ func (c *Converter) Cancel() {
 // Files returns list of found comic files.
 func (c *Converter) Files(args []string) ([]File, error) {
 	var files []File
+	var root string
 
 	toFile := func(fp string, f os.FileInfo) File {
 		var file File
 		file.Name = filepath.Base(fp)
 		file.Path = fp
+		file.Root = root
 		file.Stat = f
 		file.SizeHuman = humanize.IBytes(uint64(f.Size()))
 		return file
@@ -205,12 +291,14 @@ func (c *Converter) Files(args []string) ([]File, error) {
 		}
 
 		if !stat.IsDir() {
+			root = filepath.Dir(path)
 			if isArchive(path) || isDocument(path) {
 				if isSize(int64(c.Opts.Size), stat.Size()) {
 					files = append(files, toFile(path, stat))
 				}
 			}
 		} else {
+			root = path
 			if c.Opts.Recursive {
 				if err := filepath.Walk(path, walkFiles); err != nil {
 					return files, fmt.Errorf("%s: %w", arg, err)
@@ -252,9 +340,26 @@ func (c *Converter) Files(args []string) ([]File, error) {
 	return files, nil
 }
 
+// recursiveDir mirrors the source path under OutDir, relative to the input root.
+func (c *Converter) recursiveDir(fileName string) string {
+	dir := filepath.Dir(fileName)
+
+	if c.root != "" {
+		if rel, err := filepath.Rel(c.root, dir); err == nil {
+			return filepath.Join(c.Opts.OutDir, rel)
+		}
+	}
+
+	dir = strings.TrimPrefix(dir[len(filepath.VolumeName(dir)):], string(os.PathSeparator))
+
+	return filepath.Join(c.Opts.OutDir, dir)
+}
+
 // Cover extracts cover.
-func (c *Converter) Cover(fileName string, fileInfo os.FileInfo) error {
+func (c *Converter) Cover(file File) error {
 	c.CurrFile++
+	c.root = file.Root
+	fileName, fileInfo := file.Path, file.Stat
 
 	cover, err := c.coverImage(fileName, fileInfo)
 	if err != nil {
@@ -262,11 +367,7 @@ func (c *Converter) Cover(fileName string, fileInfo os.FileInfo) error {
 	}
 
 	if c.Opts.Width > 0 || c.Opts.Height > 0 {
-		if c.Opts.Fit {
+		cover = c.resizeFit(cover)
-			cover = fit(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
-		} else {
-			cover = resize(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
-		}
 	}
 
 	ext := c.Opts.Format
@@ -276,13 +377,12 @@ func (c *Converter) Cover(fileName string, fileInfo os.FileInfo) error {
 
 	var fName string
 	if c.Opts.Recursive {
-		fDir := strings.Split(filepath.Dir(fileName), string(os.PathSeparator))[1:]
+		outDir := c.recursiveDir(fileName)
-		err := os.MkdirAll(filepath.Join(c.Opts.OutDir, filepath.Join(fDir...)), 0755)
+		if err := os.MkdirAll(outDir, 0755); err != nil {
-		if err != nil {
 			return fmt.Errorf("%s: %w", fileName, err)
 		}
 
-		fName = filepath.Join(c.Opts.OutDir, filepath.Join(fDir...), fmt.Sprintf("%s.%s", baseNoExt(fileName), ext))
+		fName = filepath.Join(outDir, fmt.Sprintf("%s.%s", baseNoExt(fileName), ext))
 	} else {
 		fName = filepath.Join(c.Opts.OutDir, fmt.Sprintf("%s.%s", baseNoExt(fileName), ext))
 	}
@@ -301,8 +401,10 @@ func (c *Converter) Cover(fileName string, fileInfo os.FileInfo) error {
 }
 
 // Thumbnail extracts thumbnail.
-func (c *Converter) Thumbnail(fileName string, fileInfo os.FileInfo) error {
+func (c *Converter) Thumbnail(file File) error {
 	c.CurrFile++
+	c.root = file.Root
+	fileName, fileInfo := file.Path, file.Stat
 
 	cover, err := c.coverImage(fileName, fileInfo)
 	if err != nil {
@@ -310,13 +412,9 @@ func (c *Converter) Thumbnail(fileName string, fileInfo os.FileInfo) error {
 	}
 
 	if c.Opts.Width > 0 || c.Opts.Height > 0 {
-		if c.Opts.Fit {
+		cover = c.resizeFit(cover)
-			cover = fit(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
 	} else {
-			cover = resize(cover, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
+		cover = resize(cover, 256, 0, resampleFilter(c.Opts.Filter))
-		}
-	} else {
-		cover = resize(cover, 256, 0, filters[c.Opts.Filter])
 	}
 
 	var buf bytes.Buffer
@@ -343,13 +441,12 @@ func (c *Converter) Thumbnail(fileName string, fileInfo os.FileInfo) error {
 		fURI = "file://" + fileName
 
 		if c.Opts.Recursive {
-			fDir := strings.Split(filepath.Dir(fileName), string(os.PathSeparator))[1:]
+			outDir := c.recursiveDir(fileName)
-			err := os.MkdirAll(filepath.Join(c.Opts.OutDir, filepath.Join(fDir...)), 0755)
+			if err := os.MkdirAll(outDir, 0755); err != nil {
-			if err != nil {
 				return fmt.Errorf("%s: %w", fileName, err)
 			}
 
-			fName = filepath.Join(c.Opts.OutDir, filepath.Join(fDir...), fmt.Sprintf("%x.png", md5.Sum([]byte(fURI))))
+			fName = filepath.Join(outDir, fmt.Sprintf("%x.png", md5.Sum([]byte(fURI))))
 		} else {
 			fName = filepath.Join(c.Opts.OutDir, fmt.Sprintf("%x.png", md5.Sum([]byte(fURI))))
 		}
@@ -449,15 +546,51 @@ func (c *Converter) Meta(fileName string) (any, error) {
 	return "", nil
 }
 
-// Preview returns image preview.
+// Preview returns the cover as an image preview.
 func (c *Converter) Preview(fileName string, fileInfo os.FileInfo, width, height int) (Image, error) {
-	var img Image
+	i, err := c.coverImage(fileName, fileInfo)
+	if err != nil {
+		return Image{}, fmt.Errorf("%s: %w", fileName, err)
+	}
+
+	return c.previewImage(fileName, i, width, height)
+}
+
+// CoverPreview returns the cover fitted into width x height, skipping the output-codec round-trip.
+func (c *Converter) CoverPreview(fileName string, fileInfo os.FileInfo, width, height int) (Image, error) {
+	c.previewWidth, c.previewHeight = width, height
 
 	i, err := c.coverImage(fileName, fileInfo)
 	if err != nil {
-		return img, fmt.Errorf("%s: %w", fileName, err)
+		return Image{}, fmt.Errorf("%s: %w", fileName, err)
 	}
 
+	if width != 0 && height != 0 {
+		i = fit(i, width, height, resampleFilter(c.Opts.Filter))
+	}
+
+	var img Image
+	img.Image = i
+	img.Width = i.Bounds().Dx()
+	img.Height = i.Bounds().Dy()
+
+	return img, nil
+}
+
+// PreviewPage returns the page-th image (0-based) as an image preview.
+func (c *Converter) PreviewPage(fileName string, fileInfo os.FileInfo, page, width, height int) (Image, error) {
+	i, err := c.pageImage(fileName, fileInfo, page)
+	if err != nil {
+		return Image{}, fmt.Errorf("%s: %w", fileName, err)
+	}
+
+	return c.previewImage(fileName, i, width, height)
+}
+
+// previewImage applies the configured transforms and fits the result into width x height.
+func (c *Converter) previewImage(fileName string, i image.Image, width, height int) (Image, error) {
+	var img Image
+
 	i = c.imageTransform(i)
 
 	var w bytes.Buffer
@@ -470,15 +603,13 @@ func (c *Converter) Preview(fileName string, fileInfo os.FileInfo, width, height
 	img.Height = i.Bounds().Dy()
 	img.SizeHuman = humanize.IBytes(uint64(len(w.Bytes())))
 
-	r := bytes.NewReader(w.Bytes())
+	dec, err := c.imageDecode(bytes.NewReader(w.Bytes()))
-
-	dec, err := c.imageDecode(r)
 	if err != nil {
 		return img, fmt.Errorf("%s: %w", fileName, err)
 	}
 
 	if width != 0 && height != 0 {
-		dec = fit(dec, width, height, filters[c.Opts.Filter])
+		dec = fit(dec, width, height, resampleFilter(c.Opts.Filter))
 	}
 
 	img.Image = dec
@@ -486,14 +617,23 @@ func (c *Converter) Preview(fileName string, fileInfo os.FileInfo, width, height
 	return img, nil
 }
 
-// Convert converts comic book.
+// Convert converts a comic book.
-func (c *Converter) Convert(fileName string, fileInfo os.FileInfo) error {
+func (c *Converter) Convert(file File) error {
 	c.CurrFile++
+	c.root = file.Root
+	fileName, fileInfo := file.Path, file.Stat
 
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
 	c.OnCancel = cancel
+	c.prefix = ""
+
+	var err error
+	c.Workdir, err = os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		return fmt.Errorf("%s: %w", fileName, err)
+	}
 
 	switch {
 	case fileInfo.IsDir():
@@ -518,3 +658,54 @@ func (c *Converter) Convert(fileName string, fileInfo os.FileInfo) error {
 
 	return nil
 }
+
+// Combine merges multiple comic books into a single archive.
+func (c *Converter) Combine(files []File) error {
+	if len(files) == 0 {
+		return nil
+	}
+
+	c.root = ""
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	c.OnCancel = cancel
+
+	var err error
+	c.Workdir, err = os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		return fmt.Errorf("Combine: %w", err)
+	}
+
+	for i, file := range files {
+		c.CurrFile++
+		c.prefix = fmt.Sprintf("%04d_", i+1)
+
+		switch {
+		case file.Stat.IsDir():
+			err = c.convertDirectory(ctx, file.Path)
+		case isDocument(file.Path):
+			err = c.convertDocument(ctx, file.Path)
+		case isArchive(file.Path):
+			err = c.convertArchive(ctx, file.Path)
+		}
+
+		if err != nil {
+			return fmt.Errorf("%s: %w", file.Path, err)
+		}
+	}
+
+	out := c.Opts.OutFile
+	if out == "" {
+		out = baseNoExt(files[0].Path) + "-combined"
+	}
+
+	if err := c.archiveSave(out); err != nil {
+		return fmt.Errorf("Combine: %w", err)
+	}
+
+	c.OnCancel = nil
+
+	return nil
+}

cbconvert_archive.go

@@ -3,13 +3,16 @@ package cbconvert
 import (
 	"archive/tar"
 	"archive/zip"
+	"compress/flate"
+	"context"
 	"fmt"
 	"io"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"strings"
 
-	"github.com/gen2brain/go-unarr"
+	"github.com/mholt/archives"
 )
 
 // archiveSave saves workdir to CBZ archive.
@@ -31,13 +34,12 @@ func (c *Converter) archiveSaveZip(fileName string) error {
 
 	var zipName string
 	if c.Opts.Recursive {
-		fDir := strings.Split(filepath.Dir(fileName), string(os.PathSeparator))[1:]
+		outDir := c.recursiveDir(fileName)
-		err := os.MkdirAll(filepath.Join(c.Opts.OutDir, filepath.Join(fDir...)), 0755)
+		if err := os.MkdirAll(outDir, 0755); err != nil {
-		if err != nil {
 			return fmt.Errorf("archiveSaveZip: %w", err)
 		}
 
-		zipName = filepath.Join(c.Opts.OutDir, filepath.Join(fDir...), fmt.Sprintf("%s%s.cbz", baseNoExt(fileName), c.Opts.Suffix))
+		zipName = filepath.Join(outDir, fmt.Sprintf("%s%s.cbz", baseNoExt(fileName), c.Opts.Suffix))
 	} else {
 		zipName = filepath.Join(c.Opts.OutDir, fmt.Sprintf("%s%s.cbz", baseNoExt(fileName), c.Opts.Suffix))
 	}
@@ -49,6 +51,13 @@ func (c *Converter) archiveSaveZip(fileName string) error {
 
 	z := zip.NewWriter(zipFile)
 
+	if c.Opts.ZipLevel >= 1 {
+		level := c.Opts.ZipLevel
+		z.RegisterCompressor(zip.Deflate, func(out io.Writer) (io.WriteCloser, error) {
+			return flate.NewWriter(out, level)
+		})
+	}
+
 	files, err := os.ReadDir(c.Workdir)
 	if err != nil {
 		return fmt.Errorf("archiveSaveZip: %w", err)
@@ -71,6 +80,9 @@ func (c *Converter) archiveSaveZip(fileName string) error {
 		}
 
 		zipInfo.Method = zip.Deflate
+		if c.Opts.ZipLevel == 0 {
+			zipInfo.Method = zip.Store
+		}
 		w, err := z.CreateHeader(zipInfo)
 		if err != nil {
 			return fmt.Errorf("archiveSaveZip: %w", err)
@@ -106,13 +118,12 @@ func (c *Converter) archiveSaveTar(fileName string) error {
 
 	var tarName string
 	if c.Opts.Recursive {
-		fDir := strings.Split(filepath.Dir(fileName), string(os.PathSeparator))[1:]
+		outDir := c.recursiveDir(fileName)
-		err := os.MkdirAll(filepath.Join(c.Opts.OutDir, filepath.Join(fDir...)), 0755)
+		if err := os.MkdirAll(outDir, 0755); err != nil {
-		if err != nil {
 			return fmt.Errorf("archiveSaveTar: %w", err)
 		}
 
-		tarName = filepath.Join(c.Opts.OutDir, filepath.Join(fDir...), fmt.Sprintf("%s%s.cbt", baseNoExt(fileName), c.Opts.Suffix))
+		tarName = filepath.Join(outDir, fmt.Sprintf("%s%s.cbt", baseNoExt(fileName), c.Opts.Suffix))
 	} else {
 		tarName = filepath.Join(c.Opts.OutDir, fmt.Sprintf("%s%s.cbt", baseNoExt(fileName), c.Opts.Suffix))
 	}
@@ -172,17 +183,70 @@ func (c *Converter) archiveSaveTar(fileName string) error {
 	return nil
 }
 
+// archiveOpen identifies the archive and returns its extractor and a reader positioned at the start.
+func archiveOpen(ctx context.Context, fileName string) (io.ReadCloser, archives.Extractor, io.Reader, error) {
+	file, err := os.Open(fileName)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+
+	format, input, err := archives.Identify(ctx, fileName, file)
+	if err != nil {
+		file.Close()
+		return nil, nil, nil, err
+	}
+
+	ex, ok := format.(archives.Extractor)
+	if !ok {
+		file.Close()
+		return nil, nil, nil, fmt.Errorf("%s: unsupported archive format", fileName)
+	}
+
+	return file, ex, input, nil
+}
+
+// FileType returns the detected archive container, document extension, or "DIR".
+func FileType(path string) string {
+	if isArchive(path) {
+		file, err := os.Open(path)
+		if err == nil {
+			defer file.Close()
+
+			format, _, err := archives.Identify(context.Background(), path, file)
+			if err == nil {
+				return strings.ToUpper(strings.TrimPrefix(format.Extension(), "."))
+			}
+		}
+	}
+
+	if info, err := os.Stat(path); err == nil && info.IsDir() {
+		return "DIR"
+	}
+
+	return strings.ToUpper(strings.TrimPrefix(filepath.Ext(path), "."))
+}
+
 // archiveList lists contents of archive.
 func (c *Converter) archiveList(fileName string) ([]string, error) {
 	var contents []string
 
-	archive, err := unarr.NewArchive(fileName)
+	ctx := context.Background()
+
+	file, ex, input, err := archiveOpen(ctx, fileName)
 	if err != nil {
 		return contents, fmt.Errorf("archiveList: %w", err)
 	}
-	defer archive.Close()
+	defer file.Close()
 
-	contents, err = archive.List()
+	err = ex.Extract(ctx, input, func(ctx context.Context, f archives.FileInfo) error {
+		if f.IsDir() {
+			return nil
+		}
+
+		contents = append(contents, f.NameInArchive)
+
+		return nil
+	})
 	if err != nil {
 		return contents, fmt.Errorf("archiveList: %w", err)
 	}
@@ -190,6 +254,43 @@ func (c *Converter) archiveList(fileName string) ([]string, error) {
 	return contents, nil
 }
 
+// archiveFile returns the contents of a single named file from the archive.
+func (c *Converter) archiveFile(fileName, name string) ([]byte, error) {
+	var data []byte
+
+	ctx := context.Background()
+
+	file, ex, input, err := archiveOpen(ctx, fileName)
+	if err != nil {
+		return nil, fmt.Errorf("archiveFile: %w", err)
+	}
+	defer file.Close()
+
+	err = ex.Extract(ctx, input, func(ctx context.Context, f archives.FileInfo) error {
+		if f.NameInArchive != name {
+			return nil
+		}
+
+		rc, err := f.Open()
+		if err != nil {
+			return err
+		}
+		defer rc.Close()
+
+		data, err = io.ReadAll(rc)
+		if err != nil {
+			return err
+		}
+
+		return fs.SkipAll
+	})
+	if err != nil {
+		return nil, fmt.Errorf("archiveFile: %w", err)
+	}
+
+	return data, nil
+}
+
 // archiveComment returns ZIP comment.
 func (c *Converter) archiveComment(fileName string) (string, error) {
 	zr, err := zip.OpenReader(fileName)
@@ -265,7 +366,7 @@ func (c *Converter) archiveSetComment(fileName, commentBody string) error {
 	return nil
 }
 
-// archiveFileAdd adds file to archive.
+// archiveFileAdd adds a file to the archive.
 func (c *Converter) archiveFileAdd(fileName, newFileName string) error {
 	zr, err := zip.OpenReader(fileName)
 	if err != nil {

cbconvert_convert.go

@@ -1,9 +1,9 @@
 package cbconvert
 
 import (
+	"bufio"
 	"bytes"
 	"context"
-	"errors"
 	"fmt"
 	"image"
 	"image/png"
@@ -16,24 +16,18 @@ import (
 
 	"github.com/gen2brain/avif"
 	"github.com/gen2brain/go-fitz"
-	"github.com/gen2brain/go-unarr"
 	"github.com/gen2brain/jpegli"
+	"github.com/gen2brain/jpegn"
 	"github.com/gen2brain/jpegxl"
 	"github.com/gen2brain/webp"
 	"github.com/jsummers/gobmp"
+	"github.com/mholt/archives"
 	"golang.org/x/image/tiff"
 	"golang.org/x/sync/errgroup"
 )
 
 // convertDocument converts PDF/EPUB document to CBZ.
 func (c *Converter) convertDocument(ctx context.Context, fileName string) error {
-	var err error
-
-	c.Workdir, err = os.MkdirTemp(os.TempDir(), "cbc")
-	if err != nil {
-		return fmt.Errorf("convertDocument: %w", err)
-	}
-
 	doc, err := fitz.New(fileName)
 	if err != nil {
 		return fmt.Errorf("convertDocument: %w", err)
@@ -56,7 +50,7 @@ func (c *Converter) convertDocument(ctx context.Context, fileName string) error
 			return fmt.Errorf("convertDocument: %w", ctx.Err())
 		}
 
-		img, err := doc.Image(n)
+		img, err := c.renderPage(doc, n)
 		if err != nil {
 			return fmt.Errorf("convertDocument: %w", err)
 		}
@@ -78,13 +72,6 @@ func (c *Converter) convertDocument(ctx context.Context, fileName string) error
 
 // convertArchive converts archive to CBZ.
 func (c *Converter) convertArchive(ctx context.Context, fileName string) error {
-	var err error
-
-	c.Workdir, err = os.MkdirTemp(os.TempDir(), "cbc")
-	if err != nil {
-		return fmt.Errorf("convertArchive: %w", err)
-	}
-
 	contents, err := c.archiveList(fileName)
 	if err != nil {
 		return fmt.Errorf("convertArchive: %w", err)
@@ -101,51 +88,56 @@ func (c *Converter) convertArchive(ctx context.Context, fileName string) error {
 
 	cover := c.coverName(images)
 
-	archive, err := unarr.NewArchive(fileName)
-	if err != nil {
-		return fmt.Errorf("convertArchive: %w", err)
-	}
-	defer archive.Close()
-
 	eg, ctx := errgroup.WithContext(ctx)
 	eg.SetLimit(runtime.NumCPU() + 1)
 
-	for {
+	file, ex, input, err := archiveOpen(ctx, fileName)
-		if ctx.Err() != nil {
-			return fmt.Errorf("convertArchive: %w", ctx.Err())
-		}
-
-		err := archive.Entry()
 	if err != nil {
-			if errors.Is(err, io.EOF) {
-				break
-			}
-
 		return fmt.Errorf("convertArchive: %w", err)
 	}
+	defer file.Close()
 
-		data, err := archive.ReadAll()
+	err = ex.Extract(ctx, input, func(ctx context.Context, f archives.FileInfo) error {
+		if err := ctx.Err(); err != nil {
+			return err
+		}
+
+		if f.IsDir() {
+			return nil
+		}
+
+		pathName := f.NameInArchive
+
+		rc, err := f.Open()
 		if err != nil {
 			return fmt.Errorf("convertArchive: %w", err)
 		}
 
-		pathName := archive.Name()
+		data, err := io.ReadAll(rc)
+		if err != nil {
+			rc.Close()
+			return fmt.Errorf("convertArchive: %w", err)
+		}
+
+		if err = rc.Close(); err != nil {
+			return fmt.Errorf("convertArchive: %w", err)
+		}
 
 		if isImage(pathName) {
 			if c.Opts.NoConvert {
-				if err = copyFile(bytes.NewReader(data), filepath.Join(c.Workdir, filepath.Base(pathName))); err != nil {
+				if err = copyFile(bytes.NewReader(data), c.workPath(flatName(pathName))); err != nil {
 					return fmt.Errorf("convertArchive: %w", err)
 				}
 
-				continue
+				return nil
 			}
 
 			if cover == pathName && c.Opts.NoCover {
-				if err = copyFile(bytes.NewReader(data), filepath.Join(c.Workdir, filepath.Base(pathName))); err != nil {
+				if err = copyFile(bytes.NewReader(data), c.workPath(flatName(pathName))); err != nil {
 					return fmt.Errorf("convertArchive: %w", err)
 				}
 
-				continue
+				return nil
 			}
 
 			var img image.Image
@@ -155,11 +147,11 @@ func (c *Converter) convertArchive(ctx context.Context, fileName string) error {
 			}
 
 			if c.Opts.NoRGB && !isGrayScale(img) {
-				if err = copyFile(bytes.NewReader(data), filepath.Join(c.Workdir, filepath.Base(pathName))); err != nil {
+				if err = copyFile(bytes.NewReader(data), c.workPath(flatName(pathName))); err != nil {
 					return fmt.Errorf("convertArchive: %w", err)
 				}
 
-				continue
+				return nil
 			}
 
 			if img != nil {
@@ -169,18 +161,23 @@ func (c *Converter) convertArchive(ctx context.Context, fileName string) error {
 			}
 		} else {
 			if filepath.Ext(pathName) == ".DS_Store" || strings.Contains(pathName, "__MACOSX") {
-				continue
+				return nil
 			}
 
-			if !c.Opts.NoNonImage {
+			if c.prefix == "" && !c.Opts.NoNonImage {
-				if err = copyFile(bytes.NewReader(data), filepath.Join(c.Workdir, filepath.Base(pathName))); err != nil {
+				if err = copyFile(bytes.NewReader(data), c.workPath(flatName(pathName))); err != nil {
 					return fmt.Errorf("convertArchive: %w", err)
 				}
 			}
 		}
+
+		return nil
+	})
+
+	if werr := eg.Wait(); werr != nil {
+		return fmt.Errorf("convertArchive: %w", werr)
 	}
 
-	err = eg.Wait()
 	if err != nil {
 		return fmt.Errorf("convertArchive: %w", err)
 	}
@@ -190,13 +187,6 @@ func (c *Converter) convertArchive(ctx context.Context, fileName string) error {
 
 // convertDirectory converts directory to CBZ.
 func (c *Converter) convertDirectory(ctx context.Context, dirPath string) error {
-	var err error
-
-	c.Workdir, err = os.MkdirTemp(os.TempDir(), "cbc")
-	if err != nil {
-		return fmt.Errorf("convertDirectory: %w", err)
-	}
-
 	contents, err := imagesFromPath(dirPath)
 	if err != nil {
 		return fmt.Errorf("convertDirectory: %w", err)
@@ -218,13 +208,18 @@ func (c *Converter) convertDirectory(ctx context.Context, dirPath string) error
 			return fmt.Errorf("convertDirectory: %w", ctx.Err())
 		}
 
+		rel, rerr := filepath.Rel(dirPath, img)
+		if rerr != nil {
+			rel = filepath.Base(img)
+		}
+
 		file, err := os.Open(img)
 		if err != nil {
 			return fmt.Errorf("convertDirectory: %w", err)
 		}
 
-		if isNonImage(img) && !c.Opts.NoNonImage {
+		if isNonImage(img) && c.prefix == "" && !c.Opts.NoNonImage {
-			if err = copyFile(file, filepath.Join(c.Workdir, filepath.Base(img))); err != nil {
+			if err = copyFile(file, c.workPath(flatName(rel))); err != nil {
 				return fmt.Errorf("convertDirectory: %w", err)
 			}
 
@@ -235,7 +230,7 @@ func (c *Converter) convertDirectory(ctx context.Context, dirPath string) error
 			continue
 		} else if isImage(img) {
 			if c.Opts.NoConvert {
-				if err = copyFile(file, filepath.Join(c.Workdir, filepath.Base(img))); err != nil {
+				if err = copyFile(file, c.workPath(flatName(rel))); err != nil {
 					return fmt.Errorf("convertDirectory: %w", err)
 				}
 
@@ -253,7 +248,7 @@ func (c *Converter) convertDirectory(ctx context.Context, dirPath string) error
 			}
 
 			if c.Opts.NoRGB && !isGrayScale(i) {
-				if err = copyFile(file, filepath.Join(c.Workdir, filepath.Base(img))); err != nil {
+				if err = copyFile(file, c.workPath(flatName(rel))); err != nil {
 					return fmt.Errorf("convertDirectory: %w", err)
 				}
 
@@ -270,7 +265,7 @@ func (c *Converter) convertDirectory(ctx context.Context, dirPath string) error
 
 			if i != nil {
 				eg.Go(func() error {
-					return c.imageConvert(ctx, i, index, img)
+					return c.imageConvert(ctx, i, index, rel)
 				})
 			}
 		}
@@ -284,6 +279,11 @@ func (c *Converter) convertDirectory(ctx context.Context, dirPath string) error
 	return nil
 }
 
+// workPath returns the path of name inside the workdir, with the combine prefix applied.
+func (c *Converter) workPath(name string) string {
+	return filepath.Join(c.Workdir, c.prefix+name)
+}
+
 // imageConvert converts image.Image.
 func (c *Converter) imageConvert(ctx context.Context, img image.Image, index int, pathName string) error {
 	err := ctx.Err()
@@ -303,9 +303,9 @@ func (c *Converter) imageConvert(ctx context.Context, img image.Image, index int
 
 	var fileName string
 	if pathName != "" {
-		fileName = filepath.Join(c.Workdir, fmt.Sprintf("%s.%s", baseNoExt(pathName), ext))
+		fileName = c.workPath(fmt.Sprintf("%s.%s", flatName(strings.TrimSuffix(pathName, filepath.Ext(pathName))), ext))
 	} else {
-		fileName = filepath.Join(c.Workdir, fmt.Sprintf("%03d.%s", index, ext))
+		fileName = c.workPath(fmt.Sprintf("%03d.%s", index, ext))
 	}
 
 	img = c.imageTransform(img)
@@ -328,11 +328,7 @@ func (c *Converter) imageTransform(img image.Image) image.Image {
 	var i = img
 
 	if c.Opts.Width > 0 || c.Opts.Height > 0 {
-		if c.Opts.Fit {
+		i = c.resizeFit(i)
-			i = fit(i, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
-		} else {
-			i = resize(i, c.Opts.Width, c.Opts.Height, filters[c.Opts.Filter])
-		}
 	}
 
 	if c.Opts.Rotate > 0 {
@@ -362,8 +358,42 @@ func (c *Converter) imageTransform(img image.Image) image.Image {
 }
 
 // imageDecode decodes image from reader.
+// jpegnOptions decodes straight to RGBA with high-quality chroma upsampling.
+var jpegnOptions = jpegn.Options{ToRGBA: true, UpsampleMethod: jpegn.CatmullRom}
+
 func (c *Converter) imageDecode(reader io.Reader) (image.Image, error) {
-	img, _, err := image.Decode(reader)
+	br := bufio.NewReader(reader)
+
+	if magic, err := br.Peek(2); err == nil && magic[0] == 0xff && magic[1] == 0xd8 {
+		opts := jpegnOptions
+
+		if c.previewWidth > 0 && c.previewHeight > 0 {
+			data, err := io.ReadAll(br)
+			if err != nil {
+				return nil, fmt.Errorf("imageDecode: %w", err)
+			}
+
+			if cfg, err := jpegn.DecodeConfig(bytes.NewReader(data)); err == nil {
+				opts.ScaleDenom = scaleDenom(cfg.Width, cfg.Height, c.previewWidth, c.previewHeight)
+			}
+
+			img, err := jpegn.Decode(bytes.NewReader(data), &opts)
+			if err != nil {
+				return nil, fmt.Errorf("imageDecode: %w", err)
+			}
+
+			return img, nil
+		}
+
+		img, err := jpegn.Decode(br, &opts)
+		if err != nil {
+			return nil, fmt.Errorf("imageDecode: %w", err)
+		}
+
+		return img, nil
+	}
+
+	img, _, err := image.Decode(br)
 	if err != nil {
 		return img, fmt.Errorf("imageDecode: %w", err)
 	}
@@ -371,6 +401,17 @@ func (c *Converter) imageDecode(reader io.Reader) (image.Image, error) {
 	return img, nil
 }
 
+// scaleDenom returns the largest JPEG IDCT denominator (1, 2, 4, 8) that keeps w x h at or above tw x th.
+func scaleDenom(w, h, tw, th int) int {
+	for _, d := range []int{8, 4, 2} {
+		if w/d >= tw && h/d >= th {
+			return d
+		}
+	}
+
+	return 1
+}
+
 // imageEncode encodes image to file.
 func (c *Converter) imageEncode(img image.Image, w io.Writer) error {
 	var err error
@@ -389,11 +430,23 @@ func (c *Converter) imageEncode(img image.Image, w io.Writer) error {
 		opts.DCTMethod = jpegli.DefaultDCTMethod
 		err = jpegli.Encode(w, img, opts)
 	case "webp":
-		err = webp.Encode(w, img, webp.Options{Quality: c.Opts.Quality, Method: webp.DefaultMethod})
+		method := webp.DefaultMethod
+		if c.Opts.Effort >= 0 {
+			method = min(max(c.Opts.Effort, 0), 6)
+		}
+		err = webp.Encode(w, img, webp.Options{Quality: c.Opts.Quality, Method: method, Lossless: c.Opts.Lossless})
 	case "avif":
-		err = avif.Encode(w, img, avif.Options{Quality: c.Opts.Quality, Speed: avif.DefaultSpeed})
+		speed := avif.DefaultSpeed
+		if c.Opts.Effort >= 0 {
+			speed = min(max(c.Opts.Effort, 0), 10)
+		}
+		err = avif.Encode(w, img, avif.Options{Quality: c.Opts.Quality, Speed: speed, Lossless: c.Opts.Lossless})
 	case "jxl":
-		err = jpegxl.Encode(w, img, jpegxl.Options{Quality: c.Opts.Quality, Effort: jpegxl.DefaultEffort})
+		effort := jpegxl.DefaultEffort
+		if c.Opts.Effort >= 0 {
+			effort = min(max(c.Opts.Effort, 1), 10)
+		}
+		err = jpegxl.Encode(w, img, jpegxl.Options{Quality: c.Opts.Quality, Effort: effort, Lossless: c.Opts.Lossless})
 	case "bmp":
 		opts := &gobmp.EncoderOptions{}
 		opts.SupportTransparency(false)

cbconvert_cover.go

@@ -11,7 +11,6 @@ import (
 
 	"github.com/fvbommel/sortorder"
 	"github.com/gen2brain/go-fitz"
-	"github.com/gen2brain/go-unarr"
 )
 
 // coverArchive extracts cover from archive.
@@ -31,17 +30,7 @@ func (c *Converter) coverArchive(fileName string) (image.Image, error) {
 
 	cover := c.coverName(images)
 
-	archive, err := unarr.NewArchive(fileName)
+	data, err := c.archiveFile(fileName, cover)
-	if err != nil {
-		return nil, fmt.Errorf("coverArchive: %w", err)
-	}
-	defer archive.Close()
-
-	if err = archive.EntryFor(cover); err != nil {
-		return nil, fmt.Errorf("coverArchive: %w", err)
-	}
-
-	data, err := archive.ReadAll()
 	if err != nil {
 		return nil, fmt.Errorf("coverArchive: %w", err)
 	}
@@ -63,7 +52,7 @@ func (c *Converter) coverDocument(fileName string) (image.Image, error) {
 	}
 	defer doc.Close()
 
-	img, err := doc.Image(0)
+	img, err := c.renderPage(doc, 0)
 	if err != nil {
 		return nil, fmt.Errorf("coverDocument: %w", err)
 	}
@@ -96,6 +85,132 @@ func (c *Converter) coverDirectory(dir string) (image.Image, error) {
 	return img, nil
 }
 
+// pageArchive extracts the page-th image (natural reading order) from an archive.
+func (c *Converter) pageArchive(fileName string, page int) (image.Image, error) {
+	contents, err := c.archiveList(fileName)
+	if err != nil {
+		return nil, fmt.Errorf("pageArchive: %w", err)
+	}
+
+	images := imagesFromSlice(contents)
+	sort.Sort(sortorder.Natural(images))
+
+	if page < 0 || page >= len(images) {
+		return nil, fmt.Errorf("pageArchive: page %d out of range (%d pages)", page+1, len(images))
+	}
+
+	data, err := c.archiveFile(fileName, images[page])
+	if err != nil {
+		return nil, fmt.Errorf("pageArchive: %w", err)
+	}
+
+	img, err := c.imageDecode(bytes.NewReader(data))
+	if err != nil {
+		return nil, fmt.Errorf("pageArchive: %w", err)
+	}
+
+	return img, nil
+}
+
+// pageDocument extracts the page-th rendered page from a document.
+func (c *Converter) pageDocument(fileName string, page int) (image.Image, error) {
+	doc, err := fitz.New(fileName)
+	if err != nil {
+		return nil, fmt.Errorf("pageDocument: %w", err)
+	}
+	defer doc.Close()
+
+	if page < 0 || page >= doc.NumPage() {
+		return nil, fmt.Errorf("pageDocument: page %d out of range (%d pages)", page+1, doc.NumPage())
+	}
+
+	img, err := c.renderPage(doc, page)
+	if err != nil {
+		return nil, fmt.Errorf("pageDocument: %w", err)
+	}
+
+	return img, nil
+}
+
+// pageDirectory extracts the page-th image (natural reading order) from a directory.
+func (c *Converter) pageDirectory(dir string, page int) (image.Image, error) {
+	contents, err := imagesFromPath(dir)
+	if err != nil {
+		return nil, fmt.Errorf("pageDirectory: %w", err)
+	}
+
+	images := imagesFromSlice(contents)
+	sort.Sort(sortorder.Natural(images))
+
+	if page < 0 || page >= len(images) {
+		return nil, fmt.Errorf("pageDirectory: page %d out of range (%d pages)", page+1, len(images))
+	}
+
+	file, err := os.Open(images[page])
+	if err != nil {
+		return nil, fmt.Errorf("pageDirectory: %w", err)
+	}
+	defer file.Close()
+
+	img, err := c.imageDecode(file)
+	if err != nil {
+		return nil, fmt.Errorf("pageDirectory: %w", err)
+	}
+
+	return img, nil
+}
+
+// pageImage returns the page-th image of a comic file, document or directory.
+func (c *Converter) pageImage(fileName string, fileInfo os.FileInfo, page int) (image.Image, error) {
+	var err error
+	var img image.Image
+
+	switch {
+	case fileInfo.IsDir():
+		img, err = c.pageDirectory(fileName, page)
+	case isDocument(fileName):
+		img, err = c.pageDocument(fileName, page)
+	case isArchive(fileName):
+		img, err = c.pageArchive(fileName, page)
+	}
+
+	if err != nil {
+		return nil, fmt.Errorf("pageImage: %w", err)
+	}
+
+	return img, nil
+}
+
+// PageCount returns the number of pages (images) in a comic file, document or directory.
+func (c *Converter) PageCount(fileName string, fileInfo os.FileInfo) (int, error) {
+	switch {
+	case fileInfo.IsDir():
+		contents, err := imagesFromPath(fileName)
+		if err != nil {
+			return 0, fmt.Errorf("PageCount: %w", err)
+		}
+
+		return len(imagesFromSlice(contents)), nil
+	case isDocument(fileName):
+		doc, err := fitz.New(fileName)
+		if err != nil {
+			return 0, fmt.Errorf("PageCount: %w", err)
+		}
+		defer doc.Close()
+
+		return doc.NumPage(), nil
+	case isArchive(fileName):
+		contents, err := c.archiveList(fileName)
+		if err != nil {
+			return 0, fmt.Errorf("PageCount: %w", err)
+		}
+
+		return len(imagesFromSlice(contents)), nil
+	}
+
+	return 0, nil
+}
+
 // coverName returns the filename that is the most likely to be the cover.
 func (c *Converter) coverName(images []string) string {
 	if len(images) == 0 {

cbconvert_func.go

@@ -59,7 +59,7 @@ func imagesFromSlice(files []string) []string {
 	return images
 }
 
-// isArchive checks if file is archive.
+// isArchive checks if a file is archive.
 func isArchive(f string) bool {
 	var types = []string{".rar", ".zip", ".7z", ".tar", ".cbr", ".cbz", ".cb7", ".cbt"}
 	for _, t := range types {
@@ -123,6 +123,12 @@ func baseNoExt(filename string) string {
 	return strings.TrimSuffix(filepath.Base(filename), filepath.Ext(filename))
 }
 
+// flatName flattens a path into a single collision-free name by replacing separators.
+func flatName(name string) string {
+	name = strings.ReplaceAll(name, "\\", "/")
+	return strings.ReplaceAll(name, "/", "_")
+}
+
 // copyFile copies reader to file.
 func copyFile(reader io.Reader, filename string) error {
 	err := os.MkdirAll(filepath.Dir(filename), 0755)

cbconvert_image.go

@@ -22,7 +22,7 @@ const (
 	mitchellNetravali
 	// CatmullRom is a sharp bicubic filter.
 	catmullRom
-	// Gaussian is a blurring filter that uses gaussian function, useful for noise removal.
+	// Gaussian is a blurring filter, which uses gaussian function, useful for noise removal.
 	gaussian
 	// Lanczos is a high-quality resampling filter, it's slower than cubic filters.
 	lanczos
@@ -38,6 +38,15 @@ var filters = map[int]transform.ResampleFilter{
 	lanczos:           transform.Lanczos,
 }
 
+// resampleFilter returns the resample filter for index i, falling back to Linear for an unknown index.
+func resampleFilter(i int) transform.ResampleFilter {
+	if f, ok := filters[i]; ok {
+		return f
+	}
+
+	return filters[linear]
+}
+
 func resize(img image.Image, width, height int, filter transform.ResampleFilter) *image.RGBA {
 	dstW, dstH := width, height
 
@@ -86,6 +95,26 @@ func fit(img image.Image, width, height int, filter transform.ResampleFilter) *i
 	return resize(img, dstW, dstH, filter)
 }
 
+// withinBounds reports whether img already fits within width by height; a zero dimension is unbounded.
+func withinBounds(img image.Image, width, height int) bool {
+	b := img.Bounds()
+
+	return (width == 0 || b.Dx() <= width) && (height == 0 || b.Dy() <= height)
+}
+
+// resizeFit resizes img to the configured width/height, honoring Fit and NoUpscale.
+func (c *Converter) resizeFit(img image.Image) image.Image {
+	if c.Opts.Fit {
+		return fit(img, c.Opts.Width, c.Opts.Height, resampleFilter(c.Opts.Filter))
+	}
+
+	if c.Opts.NoUpscale && withinBounds(img, c.Opts.Width, c.Opts.Height) {
+		return img
+	}
+
+	return resize(img, c.Opts.Width, c.Opts.Height, resampleFilter(c.Opts.Filter))
+}
+
 func rotate(img image.Image, angle float64) *image.RGBA {
 	return transform.Rotate(img, angle, &transform.RotationOptions{ResizeBounds: true, Pivot: &image.Point{}})
 }
@@ -124,7 +153,7 @@ func imageToGray(src image.Image) *image.Gray {
 	return dst
 }
 
-// isGrayScale checks if image is grayscale.
+// isGrayScale checks if the image is grayscale.
 func isGrayScale(img image.Image) bool {
 	model := img.ColorModel()
 	if model == color.GrayModel || model == color.Gray16Model {
@@ -135,29 +164,29 @@ func isGrayScale(img image.Image) bool {
 }
 
 var colors16 = []color.Color{
-	color.RGBA{0, 0, 0, 255},
+	color.RGBA{A: 255},
-	color.RGBA{17, 17, 17, 255},
+	color.RGBA{R: 17, G: 17, B: 17, A: 255},
-	color.RGBA{34, 34, 34, 255},
+	color.RGBA{R: 34, G: 34, B: 34, A: 255},
-	color.RGBA{51, 51, 51, 255},
+	color.RGBA{R: 51, G: 51, B: 51, A: 255},
-	color.RGBA{68, 68, 68, 255},
+	color.RGBA{R: 68, G: 68, B: 68, A: 255},
-	color.RGBA{85, 85, 85, 255},
+	color.RGBA{R: 85, G: 85, B: 85, A: 255},
-	color.RGBA{102, 102, 102, 255},
+	color.RGBA{R: 102, G: 102, B: 102, A: 255},
-	color.RGBA{119, 119, 119, 255},
+	color.RGBA{R: 119, G: 119, B: 119, A: 255},
-	color.RGBA{136, 136, 136, 255},
+	color.RGBA{R: 136, G: 136, B: 136, A: 255},
-	color.RGBA{153, 153, 153, 255},
+	color.RGBA{R: 153, G: 153, B: 153, A: 255},
-	color.RGBA{170, 170, 170, 255},
+	color.RGBA{R: 170, G: 170, B: 170, A: 255},
-	color.RGBA{187, 187, 187, 255},
+	color.RGBA{R: 187, G: 187, B: 187, A: 255},
-	color.RGBA{204, 204, 204, 255},
+	color.RGBA{R: 204, G: 204, B: 204, A: 255},
-	color.RGBA{221, 221, 221, 255},
+	color.RGBA{R: 221, G: 221, B: 221, A: 255},
-	color.RGBA{238, 238, 238, 255},
+	color.RGBA{R: 238, G: 238, B: 238, A: 255},
-	color.RGBA{255, 255, 255, 255},
+	color.RGBA{R: 255, G: 255, B: 255, A: 255},
 }
 
 // imageToPaletted converts an image.Image to *image.Paletted using 16-color palette.
 func imageToPaletted(src image.Image) *image.Paletted {
 	b := src.Bounds()
 	dst := image.NewPaletted(b, colors16)
-	draw.Draw(dst, dst.Bounds(), src, b.Min, draw.Src)
+	draw.FloydSteinberg.Draw(dst, b, imageToGray(src), b.Min)
 
 	return dst
 }

cbconvert_test.go

@@ -1,9 +1,12 @@
 package cbconvert
 
 import (
+	"archive/zip"
 	"fmt"
+	"image"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 )
 
@@ -29,7 +32,7 @@ func TestConvert(t *testing.T) {
 		for _, file := range files {
 			conv.Opts.Suffix = fmt.Sprintf("_%s%s", format, filepath.Ext(file.Path))
 
-			err = conv.Convert(file.Path, file.Stat)
+			err = conv.Convert(file)
 			if err != nil {
 				t.Errorf("format %s: file %s: %v", format, file.Name, err)
 			}
@@ -59,7 +62,7 @@ func TestCover(t *testing.T) {
 	}
 
 	for _, file := range files {
-		err = conv.Cover(file.Path, file.Stat)
+		err = conv.Cover(file)
 		if err != nil {
 			t.Error(err)
 		}
@@ -88,7 +91,7 @@ func TestThumbnail(t *testing.T) {
 	}
 
 	for _, file := range files {
-		err = conv.Thumbnail(file.Path, file.Stat)
+		err = conv.Thumbnail(file)
 		if err != nil {
 			t.Error(err)
 		}
@@ -99,3 +102,713 @@ func TestThumbnail(t *testing.T) {
 		t.Error(err)
 	}
 }
+
+func TestArgs(t *testing.T) {
+	opts := NewOptions()
+	if got := opts.Args(); len(got) != 0 {
+		t.Errorf("defaults should emit no flags, got %v", got)
+	}
+
+	opts.Format = "webp"
+	opts.Quality = 90
+	opts.Effort = 4
+	opts.Lossless = true
+	opts.Width = 1200
+	opts.NoUpscale = true
+	opts.DPI = 150
+	opts.Grayscale = true
+	opts.OutDir = "/out"
+
+	got := strings.Join(opts.Args(), " ")
+	want := "--width 1200 --no-upscale --dpi 150 --format webp --quality 90 --effort 4 --lossless --grayscale --outdir /out"
+	if got != want {
+		t.Errorf("Args() = %q, want %q", got, want)
+	}
+}
+
+func TestNoUpscale(t *testing.T) {
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	width := func(o Options) int {
+		conv := New(o)
+		files, err := conv.Files([]string{"testdata/test.cbz"})
+		if err != nil {
+			t.Fatal(err)
+		}
+		for _, file := range files {
+			if err := conv.Convert(file); err != nil {
+				t.Fatal(err)
+			}
+		}
+
+		return firstPage(t, conv, filepath.Join(tmpDir, "test.cbz")).Bounds().Dx()
+	}
+
+	base := NewOptions()
+	base.OutDir = tmpDir
+	orig := width(base)
+
+	up := NewOptions()
+	up.OutDir = tmpDir
+	up.Width = orig * 2
+	up.NoUpscale = true
+	if got := width(up); got != orig {
+		t.Errorf("NoUpscale should keep original width %d, got %d", orig, got)
+	}
+
+	no := NewOptions()
+	no.OutDir = tmpDir
+	no.Width = orig * 2
+	if got := width(no); got != orig*2 {
+		t.Errorf("without NoUpscale should upscale to %d, got %d", orig*2, got)
+	}
+
+	down := NewOptions()
+	down.OutDir = tmpDir
+	down.Width = orig / 2
+	down.NoUpscale = true
+	if got := width(down); got != orig/2 {
+		t.Errorf("NoUpscale should still downscale to %d, got %d", orig/2, got)
+	}
+}
+
+func TestConvertDPI(t *testing.T) {
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	dims := func(dpi int) int {
+		opts := NewOptions()
+		opts.OutDir = tmpDir
+		opts.DPI = dpi
+
+		conv := New(opts)
+
+		files, err := conv.Files([]string{"testdata/test.pdf"})
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		for _, file := range files {
+			if err := conv.Convert(file); err != nil {
+				t.Fatal(err)
+			}
+		}
+
+		return firstPage(t, conv, filepath.Join(tmpDir, "test.cbz")).Bounds().Dx()
+	}
+
+	low := dims(150)
+	high := dims(600)
+	if low >= high {
+		t.Errorf("higher DPI should render larger pages: 150dpi=%d, 600dpi=%d", low, high)
+	}
+}
+
+func TestPreviewPage(t *testing.T) {
+	for _, name := range []string{"testdata/test.cbz", "testdata/test.pdf"} {
+		conv := New(NewOptions())
+
+		files, err := conv.Files([]string{name})
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(files) != 1 {
+			t.Fatalf("%s: expected 1 file, got %d", name, len(files))
+		}
+		file := files[0]
+
+		n, err := conv.PageCount(file.Path, file.Stat)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if n < 2 {
+			t.Fatalf("%s: expected >= 2 pages, got %d", name, n)
+		}
+
+		for _, page := range []int{0, 1, n - 1} {
+			img, err := conv.PreviewPage(file.Path, file.Stat, page, 0, 0)
+			if err != nil || img.Image == nil {
+				t.Fatalf("%s: page %d: img=%v err=%v", name, page, img.Image, err)
+			}
+		}
+
+		if _, err := conv.PreviewPage(file.Path, file.Stat, n, 0, 0); err == nil {
+			t.Errorf("%s: page %d (out of range) should error", name, n)
+		}
+	}
+}
+
+func TestConvertResize(t *testing.T) {
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	opts := NewOptions()
+	opts.OutDir = tmpDir
+	opts.Width = 100
+
+	conv := New(opts)
+
+	files, err := conv.Files([]string{"testdata/test.cbz"})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, file := range files {
+		if err := conv.Convert(file); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	img := firstPage(t, conv, filepath.Join(tmpDir, "test.cbz"))
+	if got := img.Bounds().Dx(); got != 100 {
+		t.Errorf("resized width: got %d, want 100", got)
+	}
+}
+
+func TestConvertFit(t *testing.T) {
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	opts := NewOptions()
+	opts.OutDir = tmpDir
+	opts.Width = 120
+	opts.Height = 120
+	opts.Fit = true
+
+	conv := New(opts)
+
+	files, err := conv.Files([]string{"testdata/test.cbz"})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, file := range files {
+		if err := conv.Convert(file); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	img := firstPage(t, conv, filepath.Join(tmpDir, "test.cbz"))
+	w, h := img.Bounds().Dx(), img.Bounds().Dy()
+	if w > 120 || h > 120 {
+		t.Errorf("fit exceeded bounds: got %dx%d, want <= 120x120", w, h)
+	}
+	if w != 120 && h != 120 {
+		t.Errorf("fit did not touch a bound: got %dx%d, want one side == 120", w, h)
+	}
+}
+
+func TestConvertTar(t *testing.T) {
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	opts := NewOptions()
+	opts.OutDir = tmpDir
+	opts.Archive = "tar"
+
+	conv := New(opts)
+
+	files, err := conv.Files([]string{"testdata/test.cbz"})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, file := range files {
+		if err := conv.Convert(file); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	out := filepath.Join(tmpDir, "test.cbt")
+	list, err := conv.archiveList(out)
+	if err != nil {
+		t.Fatalf("read tar output: %v", err)
+	}
+	if len(list) != 2 {
+		t.Errorf("expected 2 pages in tar output, got %d: %v", len(list), list)
+	}
+}
+
+func TestZipLevel(t *testing.T) {
+	convertWith := func(level int) *zip.ReadCloser {
+		tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Cleanup(func() { os.RemoveAll(tmpDir) })
+
+		opts := NewOptions()
+		opts.OutDir = tmpDir
+		opts.ZipLevel = level
+		opts.NoConvert = true
+
+		conv := New(opts)
+
+		files, err := conv.Files([]string{"testdata/test.cbz"})
+		if err != nil {
+			t.Fatal(err)
+		}
+		for _, file := range files {
+			if err := conv.Convert(file); err != nil {
+				t.Fatal(err)
+			}
+		}
+
+		zr, err := zip.OpenReader(filepath.Join(tmpDir, "test.cbz"))
+		if err != nil {
+			t.Fatal(err)
+		}
+		t.Cleanup(func() { zr.Close() })
+
+		return zr
+	}
+
+	store := convertWith(0)
+	for _, f := range store.File {
+		if f.Method != zip.Store {
+			t.Errorf("level 0: %s stored with method %d, want Store", f.Name, f.Method)
+		}
+		if f.CompressedSize64 != f.UncompressedSize64 {
+			t.Errorf("level 0: %s is compressed (%d < %d)", f.Name, f.CompressedSize64, f.UncompressedSize64)
+		}
+	}
+
+	deflate := convertWith(9)
+	for _, f := range deflate.File {
+		if f.Method != zip.Deflate {
+			t.Errorf("level 9: %s method %d, want Deflate", f.Name, f.Method)
+		}
+	}
+}
+
+func TestImageTransforms(t *testing.T) {
+	conv := New(NewOptions())
+
+	f, err := os.Open("testdata/test/00.jpg")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f.Close()
+
+	src, err := conv.imageDecode(f)
+	if err != nil {
+		t.Fatal(err)
+	}
+	srcW, srcH := src.Bounds().Dx(), src.Bounds().Dy()
+
+	conv.Opts.Rotate = 90
+	rotated := conv.imageTransform(src)
+	if rotated.Bounds().Dx() != srcH || rotated.Bounds().Dy() != srcW {
+		t.Errorf("rotate 90: got %dx%d, want %dx%d", rotated.Bounds().Dx(), rotated.Bounds().Dy(), srcH, srcW)
+	}
+
+	conv.Opts = NewOptions()
+	conv.Opts.Grayscale = true
+	gray := conv.imageTransform(src)
+	if !isGrayScale(gray) {
+		t.Errorf("grayscale: result is not grayscale")
+	}
+
+	conv.Opts = NewOptions()
+	conv.Opts.Brightness = 20
+	conv.Opts.Contrast = 20
+	adjusted := conv.imageTransform(src)
+	if adjusted.Bounds().Dx() != srcW || adjusted.Bounds().Dy() != srcH {
+		t.Errorf("brightness/contrast changed dimensions: got %dx%d, want %dx%d",
+			adjusted.Bounds().Dx(), adjusted.Bounds().Dy(), srcW, srcH)
+	}
+}
+
+func TestCoverName(t *testing.T) {
+	conv := New(NewOptions())
+
+	tests := []struct {
+		name   string
+		images []string
+		want   string
+	}{
+		{"empty", nil, ""},
+		{"natural sort", []string{"10.jpg", "2.jpg", "1.jpg"}, "1.jpg"},
+		{"cover prefix wins", []string{"01.jpg", "cover.jpg", "02.jpg"}, "cover.jpg"},
+		{"front prefix wins", []string{"01.jpg", "front.png", "00.jpg"}, "front.png"},
+		{"cover suffix wins", []string{"01.jpg", "page_cover.jpg"}, "page_cover.jpg"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := conv.coverName(tt.images); got != tt.want {
+				t.Errorf("coverName(%v) = %q, want %q", tt.images, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestCoverDirectory(t *testing.T) {
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	opts := NewOptions()
+	opts.OutDir = tmpDir
+
+	conv := New(opts)
+
+	files, err := conv.Files([]string{"testdata/test"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(files) != 1 {
+		t.Fatalf("expected 1 directory file, got %d", len(files))
+	}
+
+	for _, file := range files {
+		if err := conv.Cover(file); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	if _, err := os.Stat(filepath.Join(tmpDir, "test.jpg")); err != nil {
+		t.Errorf("directory cover not written: %v", err)
+	}
+}
+
+func TestFileType(t *testing.T) {
+	tests := []struct {
+		path string
+		want string
+	}{
+		{"testdata/test.cbz", "ZIP"},
+		{"testdata/test.cbr", "RAR"},
+		{"testdata/test.cb7", "7Z"},
+		{"testdata/test.cbt", "TAR"},
+		{"testdata/test.pdf", "PDF"},
+		{"testdata/test", "DIR"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.path, func(t *testing.T) {
+			if got := FileType(tt.path); got != tt.want {
+				t.Errorf("FileType(%q) = %q, want %q", tt.path, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestCombine(t *testing.T) {
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	opts := NewOptions()
+	opts.OutDir = tmpDir
+	opts.OutFile = "merged"
+
+	conv := New(opts)
+
+	files, err := conv.Files([]string{"testdata/test.cbz", "testdata/test.cbt"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(files) != 2 {
+		t.Fatalf("expected 2 input files, got %d", len(files))
+	}
+
+	if err := conv.Combine(files); err != nil {
+		t.Fatal(err)
+	}
+
+	zr, err := zip.OpenReader(filepath.Join(tmpDir, "merged.cbz"))
+	if err != nil {
+		t.Fatalf("open combined archive: %v", err)
+	}
+	defer zr.Close()
+
+	var names []string
+	for _, f := range zr.File {
+		names = append(names, f.Name)
+	}
+
+	if len(names) != 4 {
+		t.Fatalf("expected 4 pages in combined archive, got %d: %v", len(names), names)
+	}
+
+	// each input is prefixed so identically named pages do not collide
+	var first, second int
+	for _, n := range names {
+		switch {
+		case strings.HasPrefix(n, "0001_"):
+			first++
+		case strings.HasPrefix(n, "0002_"):
+			second++
+		}
+	}
+	if first != 2 || second != 2 {
+		t.Errorf("expected 2 pages from each input, got 0001_=%d 0002_=%d: %v", first, second, names)
+	}
+}
+
+func TestSubfolders(t *testing.T) {
+	page0, err := os.ReadFile("testdata/test/00.jpg")
+	if err != nil {
+		t.Fatal(err)
+	}
+	page1, err := os.ReadFile("testdata/test/01.jpg")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	inDir, err := os.MkdirTemp(os.TempDir(), "cbc-in")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(inDir)
+
+	src := filepath.Join(inDir, "chapters.cbz")
+	buildZip(t, src, []zipEntry{
+		{"chapter1/00.jpg", page0},
+		{"chapter1/01.jpg", page1},
+		{"chapter2/00.jpg", page0},
+		{"chapter2/01.jpg", page1},
+	})
+
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc-out")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	opts := NewOptions()
+	opts.OutDir = tmpDir
+
+	conv := New(opts)
+
+	files, err := conv.Files([]string{src})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, file := range files {
+		if err := conv.Convert(file); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	zr, err := zip.OpenReader(filepath.Join(tmpDir, "chapters.cbz"))
+	if err != nil {
+		t.Fatalf("open output archive: %v", err)
+	}
+	defer zr.Close()
+
+	// without subfolder preservation chapter2/00 overwrites chapter1/00 and only 2 pages survive
+	if len(zr.File) != 4 {
+		var names []string
+		for _, f := range zr.File {
+			names = append(names, f.Name)
+		}
+		t.Fatalf("expected 4 pages from numbered subfolders, got %d: %v", len(zr.File), names)
+	}
+}
+
+func TestMeta(t *testing.T) {
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cbc")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	// operate on a copy so the fixture stays intact
+	data, err := os.ReadFile("testdata/test.cbz")
+	if err != nil {
+		t.Fatal(err)
+	}
+	archive := filepath.Join(tmpDir, "meta.cbz")
+	if err := os.WriteFile(archive, data, 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	conv := New(NewOptions())
+
+	conv.Opts = NewOptions()
+	conv.Opts.CommentBody = "hello world"
+	if _, err := conv.Meta(archive); err != nil {
+		t.Fatalf("set comment: %v", err)
+	}
+
+	conv.Opts = NewOptions()
+	conv.Opts.Comment = true
+	got, err := conv.Meta(archive)
+	if err != nil {
+		t.Fatalf("get comment: %v", err)
+	}
+	if got != "hello world" {
+		t.Errorf("comment roundtrip: got %q, want %q", got, "hello world")
+	}
+
+	extra := filepath.Join(tmpDir, "ComicInfo.xml")
+	if err := os.WriteFile(extra, []byte("<ComicInfo/>"), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	conv.Opts = NewOptions()
+	conv.Opts.FileAdd = extra
+	if _, err := conv.Meta(archive); err != nil {
+		t.Fatalf("add file: %v", err)
+	}
+	if !archiveHas(t, conv, archive, "ComicInfo.xml") {
+		t.Errorf("added file not found in archive")
+	}
+
+	conv.Opts = NewOptions()
+	conv.Opts.FileRemove = "ComicInfo.xml"
+	if _, err := conv.Meta(archive); err != nil {
+		t.Fatalf("remove file: %v", err)
+	}
+	if archiveHas(t, conv, archive, "ComicInfo.xml") {
+		t.Errorf("removed file still present in archive")
+	}
+}
+
+func TestRecursive(t *testing.T) {
+	inDir, err := os.MkdirTemp(os.TempDir(), "cbc-in")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(inDir)
+
+	sub := filepath.Join(inDir, "chapter1")
+	if err := os.MkdirAll(sub, 0755); err != nil {
+		t.Fatal(err)
+	}
+
+	src, err := os.ReadFile("testdata/test.cbz")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(sub, "test.cbz"), src, 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	outDir, err := os.MkdirTemp(os.TempDir(), "cbc-out")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(outDir)
+
+	opts := NewOptions()
+	opts.OutDir = outDir
+	opts.Recursive = true
+
+	conv := New(opts)
+
+	files, err := conv.Files([]string{inDir})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(files) != 1 {
+		t.Fatalf("expected 1 file, got %d", len(files))
+	}
+
+	for _, file := range files {
+		if err := conv.Convert(file); err != nil {
+			t.Error(err)
+		}
+	}
+
+	// output must mirror the input subtree relative to the input root, not the absolute path
+	want := filepath.Join(outDir, "chapter1", "test.cbz")
+	if _, err := os.Stat(want); err != nil {
+		t.Errorf("expected output relative to input root at %s: %v", want, err)
+	}
+}
+
+type zipEntry struct {
+	name string
+	data []byte
+}
+
+func buildZip(t *testing.T, path string, entries []zipEntry) {
+	t.Helper()
+
+	f, err := os.Create(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f.Close()
+
+	zw := zip.NewWriter(f)
+	for _, e := range entries {
+		w, err := zw.Create(e.name)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if _, err := w.Write(e.data); err != nil {
+			t.Fatal(err)
+		}
+	}
+	if err := zw.Close(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func firstPage(t *testing.T, conv *Converter, archive string) image.Image {
+	t.Helper()
+
+	zr, err := zip.OpenReader(archive)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer zr.Close()
+
+	if len(zr.File) == 0 {
+		t.Fatalf("archive %s has no entries", archive)
+	}
+
+	rc, err := zr.File[0].Open()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer rc.Close()
+
+	img, err := conv.imageDecode(rc)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	return img
+}
+
+func archiveHas(t *testing.T, conv *Converter, archive, name string) bool {
+	t.Helper()
+
+	list, err := conv.archiveList(archive)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, n := range list {
+		if n == name {
+			return true
+		}
+	}
+
+	return false
+}

cmd/cbconvert-gui/dialogs.go

@@ -0,0 +1,192 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/gen2brain/cbconvert"
+	"github.com/gen2brain/cbconvert/cmd/cbconvert-gui/i18n"
+	"github.com/gen2brain/iup-go/iup"
+)
+
+func fileDlg(title string, multiple, directory bool, dirKey string) ([]string, error) {
+	ret := make([]string, 0)
+
+	dlg := iup.FileDlg()
+	defer dlg.Destroy()
+
+	if !directory {
+		mf := "YES"
+		if !multiple {
+			mf = "NO"
+		}
+
+		dlg.SetAttributes(map[string]string{
+			"DIALOGTYPE":     "OPEN",
+			"MULTIPLEFILES":  mf,
+			"MULTIVALUEPATH": "YES",
+			"EXTFILTER":      "Comic Files|*.rar;*.zip;*.7z;*.tar;*.cbr;*.cbz;*.cb7;*.cbt;*.pdf;*.epub;*.mobi;*.docx;*.pptx|",
+			"FILTER":         "*.cb*", // for Motif
+			"TITLE":          title,
+			"SHOWPREVIEW":    "YES",
+			"PREVIEWWIDTH":   "240",
+			"PREVIEWHEIGHT":  "320",
+		})
+
+		dlg.SetCallback("FILE_CB", iup.FileFunc(previewCover()))
+	} else {
+		dlg.SetAttributes(map[string]string{
+			"DIALOGTYPE": "DIR",
+			"TITLE":      title,
+		})
+	}
+
+	setStartDir(dlg, dirKey)
+
+	iup.Popup(dlg, iup.CENTERPARENT, iup.CENTERPARENT)
+
+	if dlg.GetInt("STATUS") == 0 {
+		switch {
+		case multiple:
+			// MULTIVALUEPATH makes each MULTIVALUE a full path (id 0 is the path), so a folder-spanning selection works.
+			count := dlg.GetInt("MULTIVALUECOUNT")
+			if count > 1 {
+				for i := 1; i < count; i++ {
+					ret = append(ret, iup.GetAttributeId(dlg, "MULTIVALUE", i))
+				}
+			} else if value := dlg.GetAttribute("VALUE"); value != "" {
+				ret = append(ret, value)
+			}
+		default:
+			ret = append(ret, dlg.GetAttribute("VALUE"))
+		}
+
+		rememberDir(dlg, dirKey)
+	}
+
+	return ret, nil
+}
+
+const dlgPreviewName = "_FILEDLGPREVIEW_"
+
+// previewPad insets the cover from the preview pane edges, in pixels per side.
+const previewPad = 8
+
+// previewCover returns a FILE_CB handler that draws the highlighted comic's cover in the dialog preview pane.
+// Extracted covers are cached by path so re-highlighting a file doesn't re-extract it.
+func previewCover() iup.FileFunc {
+	const maxCache = 32
+
+	cache := make(map[string]iup.Ihandle)
+	order := make([]string, 0, maxCache)
+
+	cover := func(path string, w, h int) iup.Ihandle {
+		if img, ok := cache[path]; ok {
+			return img
+		}
+
+		img := loadCover(path, w, h)
+		cache[path] = img
+		order = append(order, path)
+
+		if len(order) > maxCache {
+			old := order[0]
+			order = order[1:]
+			if oi := cache[old]; oi != 0 {
+				oi.Destroy()
+			}
+			delete(cache, old)
+		}
+
+		return img
+	}
+
+	return func(ih iup.Ihandle, filename, status string) int {
+		switch status {
+		case "PAINT":
+			iup.DrawBegin(ih)
+			cw, ch := iup.DrawGetSize(ih)
+			iup.DrawParentBackground(ih)
+
+			if image := cover(filename, cw-2*previewPad, ch-2*previewPad); image != 0 {
+				iup.SetHandle(dlgPreviewName, image)
+				iw, iih, _ := iup.DrawGetImageInfo(dlgPreviewName)
+				iup.DrawImage(ih, dlgPreviewName, (cw-iw)/2, (ch-iih)/2, iw, iih)
+			} else {
+				ih.SetAttribute("DRAWCOLOR", "128 128 128")
+				noPreview := i18n.Str(i18n.NoPreview)
+				tw, th := iup.DrawGetTextSize(ih, noPreview)
+				iup.DrawText(ih, noPreview, (cw-tw)/2, (ch-th)/2, 0, 0)
+			}
+
+			iup.DrawEnd(ih)
+		case "FINISH":
+			for _, img := range cache {
+				if img != 0 {
+					img.Destroy()
+				}
+			}
+			cache = make(map[string]iup.Ihandle)
+			order = order[:0]
+		}
+
+		return iup.DEFAULT
+	}
+}
+
+// loadCover extracts the cover of a comic file and returns it as an IUP image fitted to w by h, or 0.
+func loadCover(path string, w, h int) iup.Ihandle {
+	if w <= 0 || h <= 0 || !isComic(path) {
+		return 0
+	}
+
+	fi, err := os.Stat(path)
+	if err != nil || fi.IsDir() {
+		return 0
+	}
+
+	opts := cbconvert.NewOptions()
+	opts.DPI = 96
+
+	img, err := cbconvert.New(opts).CoverPreview(path, fi, w, h)
+	if err != nil || img.Image == nil {
+		return 0
+	}
+
+	return iup.ImageFromImage(img.Image)
+}
+
+func isComic(path string) bool {
+	switch strings.ToLower(filepath.Ext(path)) {
+	case ".rar", ".zip", ".7z", ".tar", ".cbr", ".cbz", ".cb7", ".cbt",
+		".pdf", ".xps", ".epub", ".mobi", ".docx", ".pptx", ".xlsx":
+		return true
+	}
+
+	return false
+}
+
+func saveDlg(title, dirKey string) string {
+	dlg := iup.FileDlg()
+	defer dlg.Destroy()
+
+	dlg.SetAttributes(map[string]string{
+		"DIALOGTYPE": "SAVE",
+		"EXTFILTER":  "Comic Files|*.cbz;*.cbt|",
+		"FILTER":     "*.cb*", // for Motif
+		"TITLE":      title,
+	})
+
+	setStartDir(dlg, dirKey)
+
+	iup.Popup(dlg, iup.CENTERPARENT, iup.CENTERPARENT)
+
+	if dlg.GetInt("STATUS") == -1 {
+		return ""
+	}
+
+	rememberDir(dlg, dirKey)
+
+	return dlg.GetAttribute("VALUE")
+}

cmd/cbconvert-gui/dist/linux/io.github.gen2brain.cbconvert.metainfo.xml

@@ -38,6 +38,23 @@
   <content_rating type="oars-1.1"/>
 
   <releases>
+    <release version="1.2.0" date="2026-06-27" type="stable">
+      <description>
+        <ul>
+          <li>Support for RAR5</li>
+          <li>Lossless compression for WebP, AVIF, and JXL</li>
+          <li>Control over encoder effort and speed</li>
+          <li>Combine multiple comics into a single file</li>
+          <li>Save and switch between settings profiles</li>
+          <li>Multi-language interface</li>
+          <li>Choose the document rendering resolution (DPI)</li>
+          <li>Option to skip upscaling of smaller images</li>
+          <li>Refreshed interface with page-by-page preview and cover thumbnails in the file picker</li>
+          <li>Various fixes and smaller improvements</li>
+        </ul>
+      </description>
+      <url type="details">https://github.com/gen2brain/cbconvert/releases/tag/v1.2.0</url>
+    </release>
     <release version="1.1.0" date="2024-11-06" type="stable">
       <description>
         <ul>

cmd/cbconvert-gui/dist/macos/CBconvert.app/Contents/Resources/Info.plist

@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>BuildMachineOSBuild</key>
-	<string>19H2</string>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>en</string>
-	<key>CFBundleExecutable</key>
-	<string>iup</string>
-	<key>CFBundleIdentifier</key>
-	<string>br.puc-rio.tecgraf.iup</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>iup</string>
-	<key>CFBundlePackageType</key>
-	<string>FMWK</string>
-	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
-	<key>CFBundleSignature</key>
-	<string>????</string>
-	<key>CFBundleSupportedPlatforms</key>
-	<array>
-		<string>MacOSX</string>
-	</array>
-	<key>CFBundleVersion</key>
-	<string>1</string>
-	<key>DTCompiler</key>
-	<string>com.apple.compilers.llvm.clang.1_0</string>
-	<key>DTPlatformBuild</key>
-	<string>12D4e</string>
-	<key>DTPlatformName</key>
-	<string>macosx</string>
-	<key>DTPlatformVersion</key>
-	<string>11.1</string>
-	<key>DTSDKBuild</key>
-	<string>20C63</string>
-	<key>DTSDKName</key>
-	<string>macosx11.1</string>
-	<key>DTXcode</key>
-	<string>1240</string>
-	<key>DTXcodeBuild</key>
-	<string>12D4e</string>
-	<key>LSMinimumSystemVersion</key>
-	<string>10.14</string>
-	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2015 Tecgraf, PUC-Rio, Brazil. All rights reserved.</string>
-</dict>
-</plist>

cmd/cbconvert-gui/go.mod

@@ -1,36 +1,54 @@
 module github.com/gen2brain/cbconvert/cmd/cbconvert-gui
 
-go 1.23
+go 1.26
 
 require (
-	github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca
+	github.com/fvbommel/sortorder v1.1.0
-	github.com/gen2brain/iup-go/iup v0.0.0-20241106050025-0f971ac33ed4
+	github.com/gen2brain/cbconvert v1.0.5-0.20260627172825-0f6e32c177ee
-	github.com/godbus/dbus/v5 v5.1.0
+	github.com/gen2brain/iup-go/iup v0.32.1-0.20260627135200-7df674d35173
 )
 
 require (
-	github.com/anthonynsimon/bild v0.14.0 // indirect
+	github.com/STARRY-S/zip v0.2.3 // indirect
+	github.com/andybalholm/brotli v1.2.1 // indirect
+	github.com/anthonynsimon/bild v0.15.0 // indirect
+	github.com/bodgit/plumbing v1.3.0 // indirect
+	github.com/bodgit/sevenzip v1.6.4 // indirect
+	github.com/bodgit/windows v1.0.1 // indirect
+	github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 // indirect
 	github.com/dsoprea/go-exif/v2 v2.0.0-20230826092837-6579e82b732d // indirect
 	github.com/dsoprea/go-logging v0.0.0-20200710184922-b02d349568dd // indirect
 	github.com/dsoprea/go-png-image-structure v0.0.0-20210512210324-29b889a6093d // indirect
 	github.com/dsoprea/go-utility v0.0.0-20221003172846-a3e1774ef349 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
-	github.com/ebitengine/purego v0.8.1 // indirect
+	github.com/ebitengine/purego v0.10.1 // indirect
-	github.com/fvbommel/sortorder v1.1.0 // indirect
+	github.com/gen2brain/avif v0.5.1 // indirect
-	github.com/gen2brain/avif v0.4.1 // indirect
+	github.com/gen2brain/go-fitz v1.28.0 // indirect
-	github.com/gen2brain/go-fitz v1.24.14 // indirect
+	github.com/gen2brain/jpegli v0.4.1 // indirect
-	github.com/gen2brain/go-unarr v0.2.4 // indirect
+	github.com/gen2brain/jpegn v0.4.2 // indirect
-	github.com/gen2brain/jpegli v0.3.3 // indirect
+	github.com/gen2brain/jpegxl v0.5.2 // indirect
-	github.com/gen2brain/jpegxl v0.4.2 // indirect
+	github.com/gen2brain/webp v0.6.1 // indirect
-	github.com/gen2brain/webp v0.5.1 // indirect
 	github.com/go-errors/errors v1.5.1 // indirect
-	github.com/golang/geo v0.0.0-20230421003525-6adc56603217 // indirect
+	github.com/golang/geo v0.0.0-20260625163123-7c0e84413537 // indirect
-	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25 // indirect
-	github.com/jupiterrider/ffi v0.2.1 // indirect
+	github.com/klauspost/compress v1.18.6 // indirect
-	github.com/tetratelabs/wazero v1.8.1 // indirect
+	github.com/klauspost/pgzip v1.2.6 // indirect
-	golang.org/x/image v0.21.0 // indirect
+	github.com/mholt/archives v0.1.5 // indirect
-	golang.org/x/net v0.30.0 // indirect
+	github.com/mikelolasagasti/xz v1.0.1 // indirect
-	golang.org/x/sync v0.8.0 // indirect
+	github.com/minio/minlz v1.1.1 // indirect
+	github.com/nwaples/rardecode/v2 v2.2.5 // indirect
+	github.com/pierrec/lz4/v4 v4.1.27 // indirect
+	github.com/sorairolake/lzip-go v0.3.8 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/stangelandcl/ppmd v0.1.1 // indirect
+	github.com/tetratelabs/wazero v1.12.0 // indirect
+	github.com/ulikunitz/xz v0.5.15 // indirect
+	go4.org v0.0.0-20260112195520-a5071408f32f // indirect
+	golang.org/x/image v0.43.0 // indirect
+	golang.org/x/net v0.56.0 // indirect
+	golang.org/x/sync v0.21.0 // indirect
+	golang.org/x/sys v0.46.0 // indirect
+	golang.org/x/text v0.38.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )

cmd/cbconvert-gui/go.sum

@@ -1,5 +1,21 @@
-github.com/anthonynsimon/bild v0.14.0 h1:IFRkmKdNdqmexXHfEU7rPlAmdUZ8BDZEGtGHDnGWync=
+github.com/STARRY-S/zip v0.2.3 h1:luE4dMvRPDOWQdeDdUxUoZkzUIpTccdKdhHHsQJ1fm4=
-github.com/anthonynsimon/bild v0.14.0/go.mod h1:hcvEAyBjTW69qkKJTfpcDQ83sSZHxwOunsseDfeQhUs=
+github.com/STARRY-S/zip v0.2.3/go.mod h1:lqJ9JdeRipyOQJrYSOtpNAiaesFO6zVDsE8GIGFaoSk=
+github.com/andybalholm/brotli v1.2.1 h1:R+f5xP285VArJDRgowrfb9DqL18yVK0gKAW/F+eTWro=
+github.com/andybalholm/brotli v1.2.1/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
+github.com/anthonynsimon/bild v0.15.0 h1:FzvaNLuNlAPKw1Xz7V2WYOcGIEBMj8Y6ZyAk7CI+HzA=
+github.com/anthonynsimon/bild v0.15.0/go.mod h1:qIgJ9FldkCn0iy5Ad24fzUkz5R+iJ0WfhiV+6FeCB5A=
+github.com/bodgit/plumbing v1.3.0 h1:pf9Itz1JOQgn7vEOE7v7nlEfBykYqvUYioC61TwWCFU=
+github.com/bodgit/plumbing v1.3.0/go.mod h1:JOTb4XiRu5xfnmdnDJo6GmSbSbtSyufrsyZFByMtKEs=
+github.com/bodgit/sevenzip v1.6.4 h1:iHiVJfxbrB6RF4X+snI2MpVgNBKmVfGaTqZGNlMQIU0=
+github.com/bodgit/sevenzip v1.6.4/go.mod h1:ZtNi5KNgHXeXg1G7WiF0IWSuFE2eG6lt/cTGlvuirO0=
+github.com/bodgit/windows v1.0.1 h1:tF7K6KOluPYygXa3Z2594zxlkbKPAOvqr97etrGNIz4=
+github.com/bodgit/windows v1.0.1/go.mod h1:a6JLwrB4KrTR5hBpp8FI9/9W9jJfeQ2h4XDXU74ZCdM=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 h1:2tV76y6Q9BB+NEBasnqvs7e49aEBFI8ejC89PSnWH+4=
+github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707/go.mod h1:qssHWj60/X5sZFNxpG4HBPDHVqxNm4DfnCKgrbZOT+s=
+github.com/dsnet/golib v0.0.0-20171103203638-1ea166775780/go.mod h1:Lj+Z9rebOhdfkVLjJ8T6VcRQv3SXugXy999NBtR9aFY=
 github.com/dsoprea/go-exif/v2 v2.0.0-20200321225314-640175a69fe4/go.mod h1:Lm2lMM2zx8p4a34ZemkaUV95AnMl4ZvLbCUbwOvLC2E=
 github.com/dsoprea/go-exif/v2 v2.0.0-20200604193436-ca8584a0e1c4/go.mod h1:9EXlPeHfblFFnwu5UOqmP2eoZfJyAZ2Ri/Vki33ajO0=
 github.com/dsoprea/go-exif/v2 v2.0.0-20230826092837-6579e82b732d h1:yeH8wrJa3+8uKKDAdURHUK1ds2UvKhMqX2MiOdVeKPs=
@@ -18,64 +34,112 @@ github.com/dsoprea/go-utility v0.0.0-20221003172846-a3e1774ef349/go.mod h1:KVK+/
 github.com/dsoprea/go-utility/v2 v2.0.0-20200717064901-2fccff4aa15e/go.mod h1:uAzdkPTub5Y9yQwXe8W4m2XuP0tK4a9Q/dantD0+uaU=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/ebitengine/purego v0.8.1 h1:sdRKd6plj7KYW33EH5As6YKfe8m9zbN9JMrOjNVF/BE=
+github.com/ebitengine/purego v0.10.1 h1:dewVBCBT2GaMu1SrNTYxQhgQBethzfhiwvZiLGP/qyY=
-github.com/ebitengine/purego v0.8.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/ebitengine/purego v0.10.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQmYw=
 github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
-github.com/gen2brain/avif v0.4.1 h1:fjwv5SDNYHdI1gbW6MJn3Yaxs1ldUEfAIAH8Ahee538=
+github.com/gen2brain/avif v0.5.1 h1:LQzLsJpWyGlsa4wuZ3D57qEbCiICIK7Yidz5ZPEwzTk=
-github.com/gen2brain/avif v0.4.1/go.mod h1:oePci7KPleKZ8X/2rjZ3FlVm2JFYjPwXiQpNgq9wrzs=
+github.com/gen2brain/avif v0.5.1/go.mod h1:QgrYqdVE9y40PCfArK9VakcMIpYeDYpZmCSLkW6C1n8=
-github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca h1:qYA+cXWUG/Dx+wG2yQ4iuw/s5ROGdXAdo5aIUHrOq4U=
+github.com/gen2brain/cbconvert v1.0.5-0.20260627172825-0f6e32c177ee h1:9ggHORYXL+0zSdfC0bJA049amaH5wW6jZgO5dGisKm4=
-github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca/go.mod h1:pQ9kQXsCZQqy7LraruUkBl7CpKNHFpWayxqQ+qliE8Y=
+github.com/gen2brain/cbconvert v1.0.5-0.20260627172825-0f6e32c177ee/go.mod h1:KrAZdAzcMj1XQkfDz5bp0hotVFUB2k9hRT+9F4b5f2E=
-github.com/gen2brain/go-fitz v1.24.14 h1:09weRkjVtLYNGo7l0J7DyOwBExbwi8SJ9h8YPhw9WEo=
+github.com/gen2brain/go-fitz v1.28.0 h1:RovqgQPAcOuyv5HZrWsTWl8qwlwbAHSKcAZXZUw0Vlk=
-github.com/gen2brain/go-fitz v1.24.14/go.mod h1:0KaZeQgASc20Yp5R/pFzyy7SmP01XcoHKNF842U2/S4=
+github.com/gen2brain/go-fitz v1.28.0/go.mod h1:pY2hqAjp9Zy7qfPI2gwbJMHBFAdZpVXOLrRxD82l3Bs=
-github.com/gen2brain/go-unarr v0.2.4 h1:Iu2kqtGfkLBSQoTFwMkSCmp0g3GrEM/XMVWzo9TQr/Y=
+github.com/gen2brain/iup-go/iup v0.32.1-0.20260627135200-7df674d35173 h1:nBt0N1ixK8eg/7RXJIC4b0WDPxfENqyT+rH1/STZGj4=
-github.com/gen2brain/go-unarr v0.2.4/go.mod h1:0kdy3HtjKBcEaewifXZguHCvt4qD9V8iJCx4FPEOWT8=
+github.com/gen2brain/iup-go/iup v0.32.1-0.20260627135200-7df674d35173/go.mod h1:V4f7tHOJAeHtjQ+ju795QKv6DGdLEb4L5cmWB1sjSzU=
-github.com/gen2brain/iup-go/iup v0.0.0-20241106050025-0f971ac33ed4 h1:ElkeiufJ5qqFbhxLH0TP7FhLOm37mXezIOk5iJgV27Q=
+github.com/gen2brain/jpegli v0.4.1 h1:qc11IQU0jTYFltroulT4MXmbu9YRftqHV0YBZ0Bqz5o=
-github.com/gen2brain/iup-go/iup v0.0.0-20241106050025-0f971ac33ed4/go.mod h1:F026AOq3tZrMCqTMa3K32xLh7fyTdc9+KMTMUX6EtX0=
+github.com/gen2brain/jpegli v0.4.1/go.mod h1:zJ++s4symmKCN1CLkrY0dGXTY3s0NWbd94Rz9KLdCzk=
-github.com/gen2brain/jpegli v0.3.3 h1:ryCOQpmGuVk6FA+QBe9st6cW48jsRdVOPiNrAJ50m+k=
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-github.com/gen2brain/jpegli v0.3.3/go.mod h1:6Dbgr+ni1IUBqGVOKHn8lY+6DvwSGfAfC7pPQiSK6uA=
+github.com/gen2brain/jpegn v0.4.2/go.mod h1:YvcVOmVPSAsefH6yn9HBW3uY0EHlZwCMoiJXoAWfgL0=
-github.com/gen2brain/jpegxl v0.4.2 h1:Ff0jAWtCRdc9yjPc9jkyak6Ji/A89Jg0KI+D7qOEtRI=
+github.com/gen2brain/jpegxl v0.5.2 h1:1ou9YRziU8PbpkfFJIyxrNjYM+WaMl2n9LloABxkKsU=
-github.com/gen2brain/jpegxl v0.4.2/go.mod h1:zIIDnzh7WqG+z66zyzLWQ0M4AS5xi//pyJLgu32GB1o=
+github.com/gen2brain/jpegxl v0.5.2/go.mod h1:Wlc6lqx03RJfhiQRyHa2e+8VQwT4/qv7zSRsNv9T+yE=
-github.com/gen2brain/webp v0.5.1 h1:ly9olTGveZEpq3soJuCmex9fxLJ0ipHcQRRSRit5EUE=
+github.com/gen2brain/webp v0.6.1 h1:ei7Y1SWpQcdqz3YNDNyn4y2nQanxs9WLzwW5/2DKS64=
-github.com/gen2brain/webp v0.5.1/go.mod h1:Nb3xO5sy6MeUAHhru9H3GT7nlOQO5dKRNNlE92CZrJw=
+github.com/gen2brain/webp v0.6.1/go.mod h1:iGWMaCSw7t3I/Cv9llzEKmpnR36S8lS8VL/ZVjxU0JE=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-errors/errors v1.0.2/go.mod h1:psDX2osz5VnTOnFWbDeWwS7yejl+uV3FEWEp4lssFEs=
 github.com/go-errors/errors v1.1.1/go.mod h1:psDX2osz5VnTOnFWbDeWwS7yejl+uV3FEWEp4lssFEs=
 github.com/go-errors/errors v1.5.1 h1:ZwEMSLRCapFLflTpT7NKaAc7ukJ8ZPEjzlxt8rPN8bk=
 github.com/go-errors/errors v1.5.1/go.mod h1:sIVyrIiJhuEF+Pj9Ebtd6P/rEYROXFi3BopGUQ5a5Og=
-github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
-github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/golang/geo v0.0.0-20190916061304-5b978397cfec/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
 github.com/golang/geo v0.0.0-20200319012246-673a6f80352d/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
-github.com/golang/geo v0.0.0-20230421003525-6adc56603217 h1:HKlyj6in2JV6wVkmQ4XmG/EIm+SCYlPZ+V4GWit7Z+I=
+github.com/golang/geo v0.0.0-20260625163123-7c0e84413537 h1:KeIaDS/+VEy/bhDYjG3Z78dOyLAU4HXcVxmd0WYHJTE=
-github.com/golang/geo v0.0.0-20230421003525-6adc56603217/go.mod h1:8wI0hitZ3a1IxZfeH3/5I97CI8i5cLGsYe7xNhQGs9U=
+github.com/golang/geo v0.0.0-20260625163123-7c0e84413537/go.mod h1:Mymr9kRGDc64JPr03TSZmuIBODZ3KyswLzm1xL0HFA8=
-github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
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-github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
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+github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
+github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25 h1:YLvr1eE6cdCqjOe972w/cYF+FjW34v27+9Vo5106B4M=
 github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25/go.mod h1:kLgvv7o6UM+0QSf0QjAse3wReFDsb9qbZJdfexWlrQw=
-github.com/jupiterrider/ffi v0.2.1 h1:08GJVDqz4eoQq7cKT1T0kwb9MB58XEAGjgxDvz80yBs=
+github.com/klauspost/compress v1.4.1/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
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cmd/cbconvert-gui/handlers.go

@@ -0,0 +1,513 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"slices"
+	"sort"
+	"strconv"
+
+	"github.com/fvbommel/sortorder"
+
+	"github.com/gen2brain/cbconvert"
+	"github.com/gen2brain/cbconvert/cmd/cbconvert-gui/i18n"
+	"github.com/gen2brain/iup-go/iup"
+)
+
+// selectRow focuses and selects the given 0-based row in the table.
+func selectRow(i int) {
+	if i < 0 || i >= len(files) {
+		return
+	}
+
+	index = i
+	iup.GetHandle("Table").SetAttribute("FOCUSCELL", fmt.Sprintf("%d:1", i+1))
+}
+
+// onSort re-syncs the files slice to the table's displayed order after a sort.
+func onSort(ih iup.Ihandle, col int) int {
+	n := len(files)
+	if n < 2 {
+		return iup.DEFAULT
+	}
+
+	rowKey := func(name, size string) string {
+		return name + "\x00" + size
+	}
+
+	buckets := make(map[string][]int, n)
+	for i, f := range files {
+		size := strconv.FormatFloat(float64(f.Stat.Size())/(1024*1024), 'f', 2, 64)
+		k := rowKey(f.Name, size)
+		buckets[k] = append(buckets[k], i)
+	}
+
+	var selPath string
+	if index >= 0 && index < len(files) {
+		selPath = files[index].Path
+	}
+
+	reordered := make([]cbconvert.File, 0, n)
+	for lin := 1; lin <= n; lin++ {
+		k := rowKey(iup.GetAttributeId2(ih, "", lin, 1), iup.GetAttributeId2(ih, "", lin, 3))
+		idxs := buckets[k]
+		if len(idxs) == 0 {
+			return iup.DEFAULT
+		}
+		reordered = append(reordered, files[idxs[0]])
+		buckets[k] = idxs[1:]
+	}
+
+	files = reordered
+
+	index = -1
+	if selPath != "" {
+		for i, f := range files {
+			if f.Path == selPath {
+				selectRow(i)
+				break
+			}
+		}
+	}
+
+	return iup.DEFAULT
+}
+
+// addFiles appends files, natural-sorts the list, and rebuilds the table.
+func addFiles(fs []cbconvert.File) {
+	if len(fs) == 0 {
+		return
+	}
+
+	wasEmpty := len(files) == 0
+
+	var selPath string
+	if index >= 0 && index < len(files) {
+		selPath = files[index].Path
+	}
+
+	files = append(files, fs...)
+	sort.Slice(files, func(i, j int) bool {
+		return sortorder.NaturalLess(files[i].Name, files[j].Name)
+	})
+
+	t := iup.GetHandle("Table")
+	t.SetAttribute("NUMLIN", strconv.Itoa(len(files)))
+	for i, f := range files {
+		lin := i + 1
+		iup.SetAttributeId2(t, "", lin, 1, f.Name)
+		iup.SetAttributeId2(t, "", lin, 2, cbconvert.FileType(f.Path))
+		iup.SetAttributeId2(t, "", lin, 3, strconv.FormatFloat(float64(f.Stat.Size())/(1024*1024), 'f', 2, 64))
+	}
+
+	if wasEmpty {
+		selectRow(0)
+		setActive()
+		previewPost()
+
+		return
+	}
+
+	index = -1
+	for i, f := range files {
+		if f.Path == selPath {
+			selectRow(i)
+			break
+		}
+	}
+	setActive()
+}
+
+func previewPost() {
+	if index == -1 || len(files) == 0 {
+		return
+	}
+
+	file := files[index]
+
+	// On a new file, fetch the count first; the Page POSTMESSAGE handler clamps previewPage and renders.
+	if file.Path != previewPath {
+		previewPath = file.Path
+		iup.GetHandle("Loading").SetAttributes("VISIBLE=YES, START=YES")
+		go pageCountPost(file)
+
+		return
+	}
+
+	previewRender()
+}
+
+// previewRenderSize is the size the cover is rendered at.
+const previewRenderSize = 1200
+
+// previewRender renders the current file at previewPage off the UI thread.
+func previewRender() {
+	if index == -1 || len(files) == 0 {
+		return
+	}
+
+	file := files[index]
+
+	iup.GetHandle("Loading").SetAttributes("VISIBLE=YES, START=YES")
+
+	opts := options()
+	page := previewPage
+
+	go func(opts cbconvert.Options) {
+		conv := cbconvert.New(opts)
+
+		var s string
+
+		img, err := conv.PreviewPage(file.Path, file.Stat, page, previewRenderSize, previewRenderSize)
+		if err != nil {
+			s = err.Error()
+			fmt.Println(err)
+		}
+
+		iup.PostMessage(iup.GetHandle("Preview"), s, page, img)
+	}(opts)
+}
+
+// pageCountPost computes the file's page count off the UI thread and posts it, tagged with the path, to the Page spin.
+func pageCountPost(file cbconvert.File) {
+	n, err := cbconvert.New(cbconvert.NewOptions()).PageCount(file.Path, file.Stat)
+	if err != nil || n < 1 {
+		n = 1
+	}
+
+	iup.PostMessage(iup.GetHandle("Page"), file.Path, n, nil)
+}
+
+// onPageChanged re-renders the preview for the spin's page; dedupes so spin and typing don't both fire.
+func onPageChanged() int {
+	page := iup.GetHandle("Page").GetInt("VALUE") - 1
+	if page < 0 {
+		page = 0
+	}
+	if page == previewPage {
+		return iup.DEFAULT
+	}
+
+	previewPage = page
+	previewRender()
+
+	return iup.DEFAULT
+}
+
+func onAddFiles(ih iup.Ihandle) int {
+	args, err := fileDlg(i18n.Lng(i18n.DlgAddFiles), true, false, inputDirKey)
+	if err != nil {
+		iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+		fmt.Println(err)
+
+		return iup.DEFAULT
+	}
+
+	if len(args) > 0 {
+		conv := cbconvert.New(options())
+
+		fs, err := conv.Files(args)
+		if err != nil {
+			iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+			fmt.Println(err)
+
+			return iup.DEFAULT
+		}
+
+		addFiles(fs)
+	}
+
+	return iup.DEFAULT
+}
+
+func onAddDir(ih iup.Ihandle) int {
+	args, err := fileDlg(i18n.Lng(i18n.DlgAddDir), false, true, inputDirKey)
+	if err != nil {
+		iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+		fmt.Println(err)
+
+		return iup.DEFAULT
+	}
+
+	if len(args) > 0 {
+		conv := cbconvert.New(options())
+
+		fs, err := conv.Files(args)
+		if err != nil {
+			iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+			fmt.Println(err)
+
+			return iup.DEFAULT
+		}
+
+		addFiles(fs)
+	}
+
+	return iup.DEFAULT
+}
+
+func onRemove(ih iup.Ihandle) int {
+	if index < 0 || index >= len(files) {
+		return iup.IGNORE
+	}
+
+	iup.GetHandle("Table").SetAttribute("DELLIN", strconv.Itoa(index+1))
+	files = slices.Delete(files, index, index+1)
+
+	if index >= len(files) {
+		index = len(files) - 1
+	}
+
+	setActive()
+	if len(files) == 0 {
+		clearPreview()
+	} else {
+		previewPost()
+	}
+
+	return iup.DEFAULT
+}
+
+// clearPreview resets the preview state and repaints the canvas to its empty state.
+func clearPreview() {
+	iup.Destroy(iup.GetHandle("cover"))
+	hasCover = false
+	previewPath = ""
+	previewPage = 0
+
+	iup.GetHandle("PreviewInfo").SetAttribute("TITLE", "")
+	iup.Update(iup.GetHandle("Preview"))
+}
+
+func onRemoveAll(ih iup.Ihandle) int {
+	index = -1
+	files = make([]cbconvert.File, 0)
+
+	iup.GetHandle("Table").SetAttribute("NUMLIN", "0")
+	clearPreview()
+	setActive()
+
+	return iup.DEFAULT
+}
+
+func onThumbnail(ih iup.Ihandle) int {
+	conv := cbconvert.New(options())
+	conv.Nfiles = len(files)
+	activeConv = conv
+	setBusy(true)
+
+	conv.OnProgress = func() {
+		iup.PostMessage(iup.GetHandle("ProgressBar"), "progress2", 0, conv)
+	}
+
+	var canceled = false
+	conv.OnCancel = func() {
+		canceled = true
+	}
+
+	iup.GetHandle("dlg").SetCallback("K_ANY", iup.KAnyFunc(func(ih iup.Ihandle, c int) int {
+		if c == iup.K_ESC {
+			conv.Cancel()
+		}
+
+		return iup.DEFAULT
+	}))
+
+	iup.PostMessage(iup.GetHandle("ProgressBar"), "start", 0, conv)
+
+	go func(c *cbconvert.Converter) {
+		for _, file := range files {
+			if canceled {
+				break
+			}
+
+			if err := c.Thumbnail(file); err != nil {
+				iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+				fmt.Println(err)
+
+				continue
+			}
+		}
+
+		iup.PostMessage(iup.GetHandle("ProgressBar"), "finish", 0, 0)
+	}(conv)
+
+	return iup.DEFAULT
+}
+
+func onCover(ih iup.Ihandle) int {
+	conv := cbconvert.New(options())
+	conv.Nfiles = len(files)
+	activeConv = conv
+	setBusy(true)
+
+	conv.OnProgress = func() {
+		iup.PostMessage(iup.GetHandle("ProgressBar"), "progress2", 0, conv)
+	}
+
+	var canceled = false
+	conv.OnCancel = func() {
+		canceled = true
+	}
+
+	iup.GetHandle("dlg").SetCallback("K_ANY", iup.KAnyFunc(func(ih iup.Ihandle, c int) int {
+		if c == iup.K_ESC {
+			conv.Cancel()
+		}
+
+		return iup.DEFAULT
+	}))
+
+	iup.PostMessage(iup.GetHandle("ProgressBar"), "start", 0, conv)
+
+	go func(c *cbconvert.Converter) {
+		for _, file := range files {
+			if canceled {
+				break
+			}
+
+			if err := c.Cover(file); err != nil {
+				iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+				fmt.Println(err)
+
+				continue
+			}
+		}
+
+		iup.PostMessage(iup.GetHandle("ProgressBar"), "finish", 0, 0)
+	}(conv)
+
+	return iup.DEFAULT
+}
+
+func onConvert(ih iup.Ihandle) int {
+	if busy {
+		if activeConv != nil {
+			activeConv.Cancel()
+		}
+
+		return iup.DEFAULT
+	}
+
+	conv := cbconvert.New(options())
+	conv.Nfiles = len(files)
+	activeConv = conv
+	setBusy(true)
+
+	conv.OnStart = func() {
+		iup.PostMessage(iup.GetHandle("ProgressBar"), "convert", 0, conv)
+	}
+
+	conv.OnProgress = func() {
+		iup.PostMessage(iup.GetHandle("ProgressBar"), "progress", 0, conv)
+	}
+
+	iup.GetHandle("dlg").SetCallback("K_ANY", iup.KAnyFunc(func(ih iup.Ihandle, c int) int {
+		if c == iup.K_ESC {
+			conv.Cancel()
+		}
+
+		return iup.DEFAULT
+	})).SetCallback("CLOSE_CB", iup.CloseFunc(func(ih iup.Ihandle) int {
+		if err := os.RemoveAll(conv.Workdir); err != nil {
+			fmt.Println(err)
+		}
+
+		return iup.DEFAULT
+	}))
+
+	convertErr := func(err error) {
+		if errors.Is(err, context.Canceled) {
+			if err := os.RemoveAll(conv.Workdir); err != nil {
+				fmt.Println(err)
+			}
+
+			return
+		}
+
+		iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+		fmt.Println(err)
+
+		if err := os.RemoveAll(conv.Workdir); err != nil {
+			fmt.Println(err)
+		}
+	}
+
+	go func(c *cbconvert.Converter) {
+		if c.Opts.Combine {
+			if err := c.Combine(files); err != nil {
+				convertErr(err)
+			}
+		} else {
+			for _, file := range files {
+				if err := c.Convert(file); err != nil {
+					convertErr(err)
+					if errors.Is(err, context.Canceled) {
+						break
+					}
+
+					continue
+				}
+			}
+		}
+
+		iup.PostMessage(iup.GetHandle("ProgressBar"), "finish", 0, 0)
+	}(conv)
+
+	return iup.DEFAULT
+}
+
+func onOutputDirectory(ih iup.Ihandle) int {
+	args, err := fileDlg(i18n.Lng(i18n.DlgOutputDir), false, true, outputDirKey)
+	if err != nil {
+		iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+		fmt.Println(err)
+
+		return iup.DEFAULT
+	}
+
+	if len(args) == 1 {
+		iup.GetHandle("OutDir").SetAttribute("VALUE", args[0])
+	}
+
+	setActive()
+
+	return iup.DEFAULT
+}
+
+func onOutputFile(ih iup.Ihandle) int {
+	name := saveDlg(i18n.Lng(i18n.DlgOutputFile), outputDirKey)
+	if name != "" {
+		iup.GetHandle("OutFile").SetAttribute("VALUE", filepath.Base(name))
+		iup.GetHandle("OutDir").SetAttribute("VALUE", filepath.Dir(name))
+		setActive()
+	}
+
+	return iup.DEFAULT
+}
+
+func onFilterChanged(ih iup.Ihandle) int {
+	switch ih.GetInt("VALUE") {
+	case 1:
+		ih.SetAttribute("TIP", i18n.Lng(i18n.FilterNearest))
+	case 2:
+		ih.SetAttribute("TIP", i18n.Lng(i18n.FilterBox))
+	case 3:
+		ih.SetAttribute("TIP", i18n.Lng(i18n.FilterLinear))
+	case 4:
+		ih.SetAttribute("TIP", i18n.Lng(i18n.FilterMitchell))
+	case 5:
+		ih.SetAttribute("TIP", i18n.Lng(i18n.FilterCatmull))
+	case 6:
+		ih.SetAttribute("TIP", i18n.Lng(i18n.FilterGaussian))
+	case 7:
+		ih.SetAttribute("TIP", i18n.Lng(i18n.FilterLanczos))
+	}
+
+	previewPost()
+
+	return iup.DEFAULT
+}

cmd/cbconvert-gui/i18n/detect_unix.go

@@ -0,0 +1,26 @@
+//go:build !windows
+
+package i18n
+
+import (
+	"os"
+	"strings"
+)
+
+// systemLangCode returns the two-letter language code from the POSIX locale environment, or "".
+func systemLangCode() string {
+	for _, env := range []string{"LC_ALL", "LC_MESSAGES", "LANG"} {
+		v := os.Getenv(env)
+		if v == "" || v == "C" || v == "POSIX" {
+			continue
+		}
+
+		if i := strings.IndexAny(v, "_.@"); i >= 0 {
+			v = v[:i]
+		}
+
+		return strings.ToLower(v)
+	}
+
+	return ""
+}

cmd/cbconvert-gui/i18n/detect_windows.go

@@ -0,0 +1,26 @@
+//go:build windows
+
+package i18n
+
+import "syscall"
+
+// primaryLang maps a Windows primary-language id to a two-letter language code.
+var primaryLang = map[uint16]string{
+	0x09: "en",
+	0x16: "pt",
+	0x0a: "es",
+	0x05: "cs",
+	0x19: "ru",
+	0x07: "de",
+	0x0c: "fr",
+	0x04: "zh",
+	0x11: "ja",
+	0x10: "it",
+}
+
+// systemLangCode returns the two-letter code of the user's default UI language, or "".
+func systemLangCode() string {
+	r, _, _ := syscall.NewLazyDLL("kernel32.dll").NewProc("GetUserDefaultUILanguage").Call()
+
+	return primaryLang[uint16(r)&0x3ff]
+}

cmd/cbconvert-gui/i18n/i18n.go

@@ -0,0 +1,189 @@
+// Package i18n holds the cbconvert GUI message keys and per-language string packs.
+package i18n
+
+import "github.com/gen2brain/iup-go/iup"
+
+const (
+	ColTitle = "COL_TITLE"
+	ColType  = "COL_TYPE"
+	ColSize  = "COL_SIZE"
+
+	TabInput     = "TAB_INPUT"
+	TabOutput    = "TAB_OUTPUT"
+	TabImage     = "TAB_IMAGE"
+	TabTransform = "TAB_TRANSFORM"
+
+	LblPage = "LBL_PAGE"
+	TipPage = "TIP_PAGE"
+
+	TglRecursive  = "TGL_RECURSIVE"
+	TipRecursive  = "TIP_RECURSIVE"
+	TglNoRGB      = "TGL_NORGB"
+	TipNoRGB      = "TIP_NORGB"
+	TglNoCover    = "TGL_NOCOVER"
+	TipNoCover    = "TIP_NOCOVER"
+	TglNoNonImage = "TGL_NONONIMAGE"
+	TipNoNonImage = "TIP_NONONIMAGE"
+	TglNoConvert  = "TGL_NOCONVERT"
+	TipNoConvert  = "TIP_NOCONVERT"
+	LblMinSize    = "LBL_MINSIZE"
+	TipSize       = "TIP_SIZE"
+	LblDPI        = "LBL_DPI"
+	TipDPI        = "TIP_DPI"
+
+	LblOutDir      = "LBL_OUTDIR"
+	TipOutDir      = "TIP_OUTDIR"
+	BtnBrowse      = "BTN_BROWSE"
+	LblSuffix      = "LBL_SUFFIX"
+	TipSuffix      = "TIP_SUFFIX"
+	LblArchive     = "LBL_ARCHIVE"
+	TipArchive     = "TIP_ARCHIVE"
+	LblCompression = "LBL_COMPRESSION"
+	TipZipLevel    = "TIP_ZIPLEVEL"
+	TglCombine     = "TGL_COMBINE"
+	TipCombine     = "TIP_COMBINE"
+	LblOutFile     = "LBL_OUTFILE"
+	TipOutFile     = "TIP_OUTFILE"
+
+	LblFormat      = "LBL_FORMAT"
+	TipFormat      = "TIP_FORMAT"
+	LblSize        = "LBL_SIZE"
+	CueWidth       = "CUE_WIDTH"
+	CueHeight      = "CUE_HEIGHT"
+	TipWidthHeight = "TIP_WIDTHHEIGHT"
+	TglFit         = "TGL_FIT"
+	TipFit         = "TIP_FIT"
+	TglNoUpscale   = "TGL_NOUPSCALE"
+	TipNoUpscale   = "TIP_NOUPSCALE"
+	LblFilter      = "LBL_FILTER"
+	LblQuality     = "LBL_QUALITY"
+	TipQuality     = "TIP_QUALITY"
+	LblEffort      = "LBL_EFFORT"
+	TipEffort      = "TIP_EFFORT"
+	TglLossless    = "TGL_LOSSLESS"
+	TipLossless    = "TIP_LOSSLESS"
+	TglGrayscale   = "TGL_GRAYSCALE"
+	TipGrayscale   = "TIP_GRAYSCALE"
+
+	LblBrightness = "LBL_BRIGHTNESS"
+	TipBrightness = "TIP_BRIGHTNESS"
+	LblContrast   = "LBL_CONTRAST"
+	TipContrast   = "TIP_CONTRAST"
+	LblRotate     = "LBL_ROTATE"
+	TipRotate     = "TIP_ROTATE"
+
+	EffortMethod  = "EFFORT_METHOD"
+	EffortSpeed   = "EFFORT_SPEED"
+	EffortEffort  = "EFFORT_EFFORT"
+	TipEffortWebp = "TIP_EFFORT_WEBP"
+	TipEffortAvif = "TIP_EFFORT_AVIF"
+	TipEffortJxl  = "TIP_EFFORT_JXL"
+
+	BtnAddFiles  = "BTN_ADDFILES"
+	BtnAddDir    = "BTN_ADDDIR"
+	BtnRemove    = "BTN_REMOVE"
+	BtnRemoveAll = "BTN_REMOVEALL"
+	BtnThumbnail = "BTN_THUMBNAIL"
+	BtnCover     = "BTN_COVER"
+	BtnConvert   = "BTN_CONVERT"
+	BtnCancel    = "BTN_CANCEL"
+	TipCancel    = "TIP_CANCEL"
+	BtnReset     = "BTN_RESET"
+	TipReset     = "TIP_RESET"
+	BtnSave      = "BTN_SAVE"
+	TipSave      = "TIP_SAVE"
+	BtnCommand   = "BTN_COMMAND"
+	TipCommand   = "TIP_COMMAND"
+	LblProfile   = "LBL_PROFILE"
+	TipProfile   = "TIP_PROFILE"
+
+	TipThumbnail = "TIP_THUMBNAIL"
+	TipCover     = "TIP_COVER"
+	TipConvert   = "TIP_CONVERT"
+
+	StatusNeedFilesAndDir = "STATUS_NEED_FILES_AND_DIR"
+	StatusNeedFiles       = "STATUS_NEED_FILES"
+	StatusNeedOutDir      = "STATUS_NEED_OUTDIR"
+	StatusFileOf          = "STATUS_FILE_OF"
+
+	FilterNearest  = "FILTER_NEAREST"
+	FilterBox      = "FILTER_BOX"
+	FilterLinear   = "FILTER_LINEAR"
+	FilterMitchell = "FILTER_MITCHELL"
+	FilterCatmull  = "FILTER_CATMULL"
+	FilterGaussian = "FILTER_GAUSSIAN"
+	FilterLanczos  = "FILTER_LANCZOS"
+
+	DlgAddFiles    = "DLG_ADDFILES"
+	DlgAddDir      = "DLG_ADDDIR"
+	DlgOutputDir   = "DLG_OUTPUTDIR"
+	DlgOutputFile  = "DLG_OUTPUTFILE"
+	DlgCommandLine = "DLG_COMMANDLINE"
+	DlgSaveProfile = "DLG_SAVEPROFILE"
+
+	ParamName           = "PARAM_NAME"
+	MsgInvalidNameTitle = "MSG_INVALIDNAME_TITLE"
+	MsgInvalidNameBody  = "MSG_INVALIDNAME_BODY"
+
+	NoPreview = "NO_PREVIEW"
+)
+
+// packs maps an IUP language name to its message pack, filled by each language file's init.
+var packs = map[string]map[string]string{}
+
+// register adds a language pack; called from each i18n_<lang>.go init.
+func register(lang string, pack map[string]string) {
+	packs[lang] = pack
+}
+
+// langByCode maps a two-letter language code to the IUP language name.
+var langByCode = map[string]string{
+	"en": "ENGLISH",
+	"pt": "PORTUGUESE",
+	"es": "SPANISH",
+	"cs": "CZECH",
+	"ru": "RUSSIAN",
+	"de": "GERMAN",
+	"fr": "FRENCH",
+	"zh": "CHINESE",
+	"ja": "JAPANESE",
+	"it": "ITALIAN",
+}
+
+// Lng wraps a message key for IUP's automatic language-string lookup.
+func Lng(key string) string {
+	return "_@" + key
+}
+
+// Str returns the translated string for a key, for use where IUP's "_@" prefix does not apply.
+func Str(key string) string {
+	return iup.GetLanguageString(key)
+}
+
+// Init detects the system language, switches IUP's predefined strings to it, and registers the message packs.
+func Init() {
+	lang := detect()
+	iup.SetLanguage(lang)
+
+	registerPack(packs["ENGLISH"])
+	if lang != "ENGLISH" {
+		if pack, ok := packs[lang]; ok {
+			registerPack(pack)
+		}
+	}
+}
+
+func registerPack(pack map[string]string) {
+	for name, value := range pack {
+		iup.SetLanguageString(name, value)
+	}
+}
+
+// detect returns the IUP language name for the system locale, or ENGLISH.
+func detect() string {
+	if name, ok := langByCode[systemLangCode()]; ok {
+		return name
+	}
+
+	return "ENGLISH"
+}

cmd/cbconvert-gui/i18n/i18n_cs.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("CZECH", map[string]string{
+		ColTitle: "Název",
+		ColType:  "Typ",
+		ColSize:  "Velikost (MiB)",
+
+		TabInput:     "Vstup",
+		TabOutput:    "Výstup",
+		TabImage:     "Obrázek",
+		TabTransform: "Transformace",
+
+		LblPage: "Stránka:",
+		TipPage: "Náhled jiné stránky vybraného komiksu",
+
+		TglRecursive:  " Procházet podadresáře",
+		TipRecursive:  "Zpracovat podadresáře rekurzivně",
+		TglNoRGB:      " Pouze obrázky ve stupních šedi",
+		TipNoRGB:      "Nepřevádět obrázky s barevným prostorem RGB",
+		TglNoCover:    " Vyloučit obálku",
+		TipNoCover:    "Nepřevádět obrázek obálky",
+		TglNoNonImage: " Odstranit z archivu soubory, které nejsou obrázky",
+		TipNoNonImage: "Odstranit z archivu soubory .nfo, .xml, .txt",
+		TglNoConvert:  " Netransformovat ani nepřevádět obrázky",
+		TipNoConvert:  "Kopírovat obrázky z archivu nebo adresáře beze změn",
+		LblMinSize:    "Minimální velikost (MiB):",
+		TipSize:       "Zpracovat pouze soubory větší než minimální velikost",
+		LblDPI:        "DPI dokumentu:",
+		TipDPI:        "Rozlišení pro vykreslování dokumentů (PDF, EPUB atd.); výchozí používá původní rozlišení",
+
+		LblOutDir:      "Výstupní adresář:",
+		TipOutDir:      "Adresář, do kterého se zapisují převedené soubory (povinné)",
+		BtnBrowse:      "Procházet...",
+		LblSuffix:      "Přidat příponu k výstupnímu souboru:",
+		TipSuffix:      "Přidat příponu k názvu souboru, např. nazevsouboru_pripona.cbz",
+		LblArchive:     "Formát archivu:",
+		TipArchive:     "Výstupní kontejner: ZIP (.cbz) nebo nekomprimovaný TAR (.cbt)",
+		LblCompression: "Komprese:",
+		TipZipLevel:    "Komprese ZIP: Uložit ji vypne, 1 je nejrychlejší, 9 nejmenší",
+		TglCombine:     " Sloučit do jednoho souboru",
+		TipCombine:     "Sloučit všechny uvedené soubory do jednoho archivu",
+		LblOutFile:     "Výstupní soubor:",
+		TipOutFile:     "Název sloučeného souboru (výchozí: první vstup + -combined)",
+
+		LblFormat:      "Formát:",
+		TipFormat:      "Výstupní formát obrázku pro převedené stránky",
+		LblSize:        "Velikost:",
+		CueWidth:       "šířka",
+		CueHeight:      "výška",
+		TipWidthHeight: "Pokud není nastavena šířka nebo výška, zachová se poměr stran obrázku",
+		TglFit:         " Nejlepší přizpůsobení",
+		TipFit:         "Nejlepší přizpůsobení požadované šířce a výšce",
+		TglNoUpscale:   " Nezvětšovat",
+		TipNoUpscale:   "Nezvětšovat obrázky, které jsou již menší než požadovaná velikost",
+		LblFilter:      "Filtr změny velikosti:",
+		LblQuality:     "Kvalita: ",
+		TipQuality:     "Kvalita ovlivňuje JPEG, WEBP, AVIF a JXL",
+		LblEffort:      "Úsilí:",
+		TipEffort:      "Rychlost/úsilí kodéru (WEBP, AVIF, JXL)",
+		TglLossless:    " Bezztrátový",
+		TipLossless:    "Bezztrátová komprese (WEBP, AVIF, JXL), ignoruje kvalitu",
+		TglGrayscale:   " Stupně šedi",
+		TipGrayscale:   "Převést obrázky do stupňů šedi (monochromaticky)",
+
+		LblBrightness: "Jas: ",
+		TipBrightness: "Upravit jas obrázků",
+		LblContrast:   "Kontrast: ",
+		TipContrast:   "Upravit kontrast obrázků",
+		LblRotate:     "Otočit:",
+		TipRotate:     "Otočit každou stránku po směru hodinových ručiček o zadaný úhel ve stupních",
+
+		EffortMethod:  "Metoda",
+		EffortSpeed:   "Rychlost",
+		EffortEffort:  "Úsilí",
+		TipEffortWebp: "Metoda WEBP, vyšší je lepší/pomalejší (0-6, výchozí 4)",
+		TipEffortAvif: "Rychlost AVIF, vyšší je rychlejší/horší (0-10, výchozí 10)",
+		TipEffortJxl:  "Úsilí JXL, vyšší je lepší/pomalejší (1-10, výchozí 7)",
+
+		BtnAddFiles:  "Přidat &soubory...",
+		BtnAddDir:    "Přidat &adresář...",
+		BtnRemove:    "Odebrat",
+		BtnRemoveAll: "Odebrat vše",
+		BtnThumbnail: "Náhled",
+		BtnCover:     "Obálka",
+		BtnConvert:   "&Převést",
+		BtnCancel:    "Zrušit",
+		TipCancel:    "Zrušit probíhající operaci (nebo stisknout Esc)",
+		BtnReset:     "Obnovit",
+		TipReset:     "Obnovit všechna nastavení na výchozí hodnoty",
+		BtnSave:      "Uložit",
+		TipSave:      "Uložit aktuální nastavení do profilu",
+		BtnCommand:   "Příkaz",
+		TipCommand:   "Zobrazit odpovídající příkazový řádek",
+		LblProfile:   "Profil:",
+		TipProfile:   "Vybrat profil nastavení",
+
+		TipThumbnail: "Extrahovat náhledy obálek",
+		TipCover:     "Extrahovat obálky",
+		TipConvert:   "Převést soubory do vybraného formátu",
+
+		StatusNeedFilesAndDir: "Přidejte soubory a nastavte výstupní adresář",
+		StatusNeedFiles:       "Přidejte soubory",
+		StatusNeedOutDir:      "Nastavte výstupní adresář",
+		StatusFileOf:          "Soubor %d z %d",
+
+		FilterNearest:  "NearestNeighbor je nejrychlejší převzorkovací filtr, bez vyhlazování",
+		FilterBox:      "Filtr Box (průměrování pixelů)",
+		FilterLinear:   "Linear je bilineární filtr, hladký a přiměřeně rychlý",
+		FilterMitchell: "MitchellNetravali je hladký bikubický filtr",
+		FilterCatmull:  "CatmullRom je ostrý bikubický filtr",
+		FilterGaussian: "Gaussian je rozostřovací filtr využívající Gaussovu funkci, užitečný pro odstranění šumu",
+		FilterLanczos:  "Lanczos je vysoce kvalitní převzorkovací filtr, pomalejší než bikubické filtry",
+
+		DlgAddFiles:    "Přidat soubory",
+		DlgAddDir:      "Přidat adresář",
+		DlgOutputDir:   "Výstupní adresář",
+		DlgOutputFile:  "Výstupní soubor",
+		DlgCommandLine: "Příkazový řádek",
+		DlgSaveProfile: "Uložit profil",
+
+		ParamName:           "Název: %s\n",
+		MsgInvalidNameTitle: "Neplatný název",
+		MsgInvalidNameBody:  "Název profilu nesmí být prázdný ani obsahovat '.' nebo ';'.",
+
+		NoPreview: "Žádný náhled",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_de.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("GERMAN", map[string]string{
+		ColTitle: "Titel",
+		ColType:  "Typ",
+		ColSize:  "Größe (MiB)",
+
+		TabInput:     "Eingabe",
+		TabOutput:    "Ausgabe",
+		TabImage:     "Bild",
+		TabTransform: "Transformation",
+
+		LblPage: "Seite:",
+		TipPage: "Eine andere Seite des ausgewählten Comics als Vorschau anzeigen",
+
+		TglRecursive:  " Unterverzeichnisse rekursiv",
+		TipRecursive:  "Unterverzeichnisse rekursiv verarbeiten",
+		TglNoRGB:      " Nur Graustufenbilder",
+		TipNoRGB:      "Bilder mit RGB-Farbraum nicht konvertieren",
+		TglNoCover:    " Titelbild ausschließen",
+		TipNoCover:    "Das Titelbild nicht konvertieren",
+		TglNoNonImage: " Nicht-Bilddateien aus dem Archiv entfernen",
+		TipNoNonImage: ".nfo-, .xml-, .txt-Dateien aus dem Archiv entfernen",
+		TglNoConvert:  " Bilder nicht transformieren oder konvertieren",
+		TipNoConvert:  "Bilder aus Archiv oder Verzeichnis ohne Änderungen kopieren",
+		LblMinSize:    "Mindestgröße (MiB):",
+		TipSize:       "Nur Dateien größer als die Mindestgröße verarbeiten",
+		LblDPI:        "Dokument-DPI:",
+		TipDPI:        "Auflösung zum Rendern von Dokumenten (PDF, EPUB usw.); Standard verwendet die Originalauflösung",
+
+		LblOutDir:      "Ausgabeverzeichnis:",
+		TipOutDir:      "Verzeichnis, in das konvertierte Dateien geschrieben werden (erforderlich)",
+		BtnBrowse:      "Durchsuchen...",
+		LblSuffix:      "Suffix an Ausgabedatei anhängen:",
+		TipSuffix:      "Suffix an den Dateinamen anhängen, z. B. dateiname_suffix.cbz",
+		LblArchive:     "Archivformat:",
+		TipArchive:     "Ausgabecontainer: ZIP (.cbz) oder unkomprimiertes TAR (.cbt)",
+		LblCompression: "Komprimierung:",
+		TipZipLevel:    "ZIP-Komprimierung: Speichern deaktiviert sie, 1 ist am schnellsten, 9 am kleinsten",
+		TglCombine:     " In einer Datei zusammenfassen",
+		TipCombine:     "Alle aufgelisteten Dateien zu einem Archiv zusammenführen",
+		LblOutFile:     "Ausgabedatei:",
+		TipOutFile:     "Name der zusammengefassten Datei (Standard: erste Eingabe + -combined)",
+
+		LblFormat:      "Format:",
+		TipFormat:      "Ausgabebildformat für die konvertierten Seiten",
+		LblSize:        "Größe:",
+		CueWidth:       "Breite",
+		CueHeight:      "Höhe",
+		TipWidthHeight: "Wenn Breite oder Höhe nicht gesetzt ist, bleibt das Seitenverhältnis erhalten",
+		TglFit:         " Optimale Anpassung",
+		TipFit:         "Optimale Anpassung an gewünschte Breite und Höhe",
+		TglNoUpscale:   " Nicht vergrößern",
+		TipNoUpscale:   "Bilder, die bereits kleiner als die gewünschte Größe sind, nicht vergrößern",
+		LblFilter:      "Skalierungsfilter:",
+		LblQuality:     "Qualität: ",
+		TipQuality:     "Qualität betrifft JPEG, WEBP, AVIF und JXL",
+		LblEffort:      "Aufwand:",
+		TipEffort:      "Encoder-Geschwindigkeit/-Aufwand (WEBP, AVIF, JXL)",
+		TglLossless:    " Verlustfrei",
+		TipLossless:    "Verlustfreie Komprimierung (WEBP, AVIF, JXL), ignoriert Qualität",
+		TglGrayscale:   " Graustufen",
+		TipGrayscale:   "Bilder in Graustufen umwandeln (monochrom)",
+
+		LblBrightness: "Helligkeit: ",
+		TipBrightness: "Die Helligkeit der Bilder anpassen",
+		LblContrast:   "Kontrast: ",
+		TipContrast:   "Den Kontrast der Bilder anpassen",
+		LblRotate:     "Drehen:",
+		TipRotate:     "Jede Seite um den angegebenen Winkel im Uhrzeigersinn drehen",
+
+		EffortMethod:  "Methode",
+		EffortSpeed:   "Geschwindigkeit",
+		EffortEffort:  "Aufwand",
+		TipEffortWebp: "WEBP-Methode, höher ist besser/langsamer (0-6, Standard 4)",
+		TipEffortAvif: "AVIF-Geschwindigkeit, höher ist schneller/schlechter (0-10, Standard 10)",
+		TipEffortJxl:  "JXL-Aufwand, höher ist besser/langsamer (1-10, Standard 7)",
+
+		BtnAddFiles:  "&Dateien hinzufügen...",
+		BtnAddDir:    "&Verzeichnis hinzufügen...",
+		BtnRemove:    "Entfernen",
+		BtnRemoveAll: "Alle entfernen",
+		BtnThumbnail: "Miniaturbild",
+		BtnCover:     "Titelbild",
+		BtnConvert:   "&Konvertieren",
+		BtnCancel:    "Abbrechen",
+		TipCancel:    "Laufenden Vorgang abbrechen (oder Esc drücken)",
+		BtnReset:     "Zurücksetzen",
+		TipReset:     "Alle Einstellungen auf die Standardwerte zurücksetzen",
+		BtnSave:      "Speichern",
+		TipSave:      "Aktuelle Einstellungen in einem Profil speichern",
+		BtnCommand:   "Befehl",
+		TipCommand:   "Die entsprechende Befehlszeile anzeigen",
+		LblProfile:   "Profil:",
+		TipProfile:   "Ein Einstellungsprofil auswählen",
+
+		TipThumbnail: "Titelbild-Miniaturen extrahieren",
+		TipCover:     "Titelbilder extrahieren",
+		TipConvert:   "Dateien in das ausgewählte Format konvertieren",
+
+		StatusNeedFilesAndDir: "Dateien hinzufügen und Ausgabeverzeichnis festlegen",
+		StatusNeedFiles:       "Dateien hinzufügen",
+		StatusNeedOutDir:      "Ausgabeverzeichnis festlegen",
+		StatusFileOf:          "Datei %d von %d",
+
+		FilterNearest:  "NearestNeighbor ist der schnellste Skalierungsfilter, ohne Antialiasing",
+		FilterBox:      "Box-Filter (Mittelung der Pixel)",
+		FilterLinear:   "Linear ist der bilineare Filter, glatt und einigermaßen schnell",
+		FilterMitchell: "MitchellNetravali ist ein glatter bikubischer Filter",
+		FilterCatmull:  "CatmullRom ist ein scharfer bikubischer Filter",
+		FilterGaussian: "Gaussian ist ein Weichzeichnungsfilter mit Gauß-Funktion, nützlich zur Rauschentfernung",
+		FilterLanczos:  "Lanczos ist ein hochwertiger Skalierungsfilter, langsamer als bikubische Filter",
+
+		DlgAddFiles:    "Dateien hinzufügen",
+		DlgAddDir:      "Verzeichnis hinzufügen",
+		DlgOutputDir:   "Ausgabeverzeichnis",
+		DlgOutputFile:  "Ausgabedatei",
+		DlgCommandLine: "Befehlszeile",
+		DlgSaveProfile: "Profil speichern",
+
+		ParamName:           "Name: %s\n",
+		MsgInvalidNameTitle: "Ungültiger Name",
+		MsgInvalidNameBody:  "Der Profilname darf nicht leer sein oder '.' oder ';' enthalten.",
+
+		NoPreview: "Keine Vorschau",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_en.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("ENGLISH", map[string]string{
+		ColTitle: "Title",
+		ColType:  "Type",
+		ColSize:  "Size (MiB)",
+
+		TabInput:     "Input",
+		TabOutput:    "Output",
+		TabImage:     "Image",
+		TabTransform: "Transform",
+
+		LblPage: "Page:",
+		TipPage: "Preview a different page of the selected comic",
+
+		TglRecursive:  " Recurse SubDirectories",
+		TipRecursive:  "Process subdirectories recursively",
+		TglNoRGB:      " Only Grayscale Images",
+		TipNoRGB:      "Do not convert images that have RGB colorspace",
+		TglNoCover:    " Exclude Cover",
+		TipNoCover:    "Do not convert the cover image",
+		TglNoNonImage: " Remove Non-Image Files from the Archive",
+		TipNoNonImage: "Remove .nfo, .xml, .txt files from the archive",
+		TglNoConvert:  " Do not Transform or Convert Images",
+		TipNoConvert:  "Copy images from archive or directory without modifications",
+		LblMinSize:    "Minimum Size (MiB):",
+		TipSize:       "Process only files larger than minimum size",
+		LblDPI:        "Document DPI:",
+		TipDPI:        "Resolution for rendering documents (PDF, EPUB, etc.); Default uses the original resolution",
+
+		LblOutDir:      "Output Directory:",
+		TipOutDir:      "Directory where converted files are written (required)",
+		BtnBrowse:      "Browse...",
+		LblSuffix:      "Add Suffix to Output File:",
+		TipSuffix:      "Add suffix to filename, i.e. filename_suffix.cbz",
+		LblArchive:     "Archive Format:",
+		TipArchive:     "Output container: ZIP (.cbz) or uncompressed TAR (.cbt)",
+		LblCompression: "Compression:",
+		TipZipLevel:    "ZIP compression: Store disables it, 1 is fastest, 9 is smallest",
+		TglCombine:     " Combine into single file",
+		TipCombine:     "Merge all listed files into one archive",
+		LblOutFile:     "Output File:",
+		TipOutFile:     "Combined file name (default: first input + -combined)",
+
+		LblFormat:      "Format:",
+		TipFormat:      "Output image format for the converted pages",
+		LblSize:        "Size:",
+		CueWidth:       "width",
+		CueHeight:      "height",
+		TipWidthHeight: "If one of, width or height is not set, the image aspect ratio is preserved",
+		TglFit:         " Best Fit",
+		TipFit:         "Best fit for required width and height",
+		TglNoUpscale:   " No Upscale",
+		TipNoUpscale:   "Do not enlarge images already smaller than the requested size",
+		LblFilter:      "Resize Filter:",
+		LblQuality:     "Quality: ",
+		TipQuality:     "Quality affects JPEG, WEBP, AVIF and JXL",
+		LblEffort:      "Effort:",
+		TipEffort:      "Encoder speed/effort (WEBP, AVIF, JXL)",
+		TglLossless:    " Lossless",
+		TipLossless:    "Lossless compression (WEBP, AVIF, JXL), ignores quality",
+		TglGrayscale:   " Grayscale",
+		TipGrayscale:   "Convert images to grayscale (monochromatic)",
+
+		LblBrightness: "Brightness: ",
+		TipBrightness: "Adjust the brightness of the images",
+		LblContrast:   "Contrast: ",
+		TipContrast:   "Adjust the contrast of the images",
+		LblRotate:     "Rotate:",
+		TipRotate:     "Rotate every page clockwise by the given angle in degrees",
+
+		EffortMethod:  "Method",
+		EffortSpeed:   "Speed",
+		EffortEffort:  "Effort",
+		TipEffortWebp: "WEBP method, higher is better/slower (0-6, default 4)",
+		TipEffortAvif: "AVIF speed, higher is faster/worse (0-10, default 10)",
+		TipEffortJxl:  "JXL effort, higher is better/slower (1-10, default 7)",
+
+		BtnAddFiles:  "Add &Files...",
+		BtnAddDir:    "Add &Dir...",
+		BtnRemove:    "Remove",
+		BtnRemoveAll: "Remove All",
+		BtnThumbnail: "Thumbnail",
+		BtnCover:     "Cover",
+		BtnConvert:   "&Convert",
+		BtnCancel:    "Cancel",
+		TipCancel:    "Cancel the running operation (or press Esc)",
+		BtnReset:     "Reset",
+		TipReset:     "Restore all settings to their defaults",
+		BtnSave:      "Save",
+		TipSave:      "Save current settings to a profile",
+		BtnCommand:   "Command",
+		TipCommand:   "Show the equivalent command line",
+		LblProfile:   "Profile:",
+		TipProfile:   "Select a settings profile",
+
+		TipThumbnail: "Extract cover thumbnails",
+		TipCover:     "Extract covers",
+		TipConvert:   "Convert files to the selected format",
+
+		StatusNeedFilesAndDir: "Add files and set output directory",
+		StatusNeedFiles:       "Add files",
+		StatusNeedOutDir:      "Set output directory",
+		StatusFileOf:          "File %d of %d",
+
+		FilterNearest:  "NearestNeighbor is the fastest resampling filter, no antialiasing",
+		FilterBox:      "Box filter (averaging pixels)",
+		FilterLinear:   "Linear is the bilinear filter, smooth and reasonably fast",
+		FilterMitchell: "MitchellNetravali is a smooth bicubic filter",
+		FilterCatmull:  "CatmullRom is a sharp bicubic filter",
+		FilterGaussian: "Gaussian is a blurring filter that uses gaussian function, useful for noise removal",
+		FilterLanczos:  "Lanczos is a high-quality resampling filter, it's slower than cubic filters",
+
+		DlgAddFiles:    "Add Files",
+		DlgAddDir:      "Add Directory",
+		DlgOutputDir:   "Output Directory",
+		DlgOutputFile:  "Output File",
+		DlgCommandLine: "Command Line",
+		DlgSaveProfile: "Save Profile",
+
+		ParamName:           "Name: %s\n",
+		MsgInvalidNameTitle: "Invalid Name",
+		MsgInvalidNameBody:  "Profile name must not be empty or contain '.' or ';'.",
+
+		NoPreview: "No preview",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_es.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("SPANISH", map[string]string{
+		ColTitle: "Título",
+		ColType:  "Tipo",
+		ColSize:  "Tamaño (MiB)",
+
+		TabInput:     "Entrada",
+		TabOutput:    "Salida",
+		TabImage:     "Imagen",
+		TabTransform: "Transformar",
+
+		LblPage: "Página:",
+		TipPage: "Previsualizar otra página del cómic seleccionado",
+
+		TglRecursive:  " Recorrer subdirectorios",
+		TipRecursive:  "Procesar subdirectorios de forma recursiva",
+		TglNoRGB:      " Solo imágenes en escala de grises",
+		TipNoRGB:      "No convertir imágenes que tengan espacio de color RGB",
+		TglNoCover:    " Excluir la portada",
+		TipNoCover:    "No convertir la imagen de portada",
+		TglNoNonImage: " Eliminar archivos que no sean imágenes del archivo",
+		TipNoNonImage: "Eliminar archivos .nfo, .xml, .txt del archivo",
+		TglNoConvert:  " No transformar ni convertir imágenes",
+		TipNoConvert:  "Copiar imágenes del archivo o directorio sin modificaciones",
+		LblMinSize:    "Tamaño mínimo (MiB):",
+		TipSize:       "Procesar solo archivos mayores que el tamaño mínimo",
+		LblDPI:        "DPI del documento:",
+		TipDPI:        "Resolución para renderizar documentos (PDF, EPUB, etc.); el valor predeterminado usa la resolución original",
+
+		LblOutDir:      "Directorio de salida:",
+		TipOutDir:      "Directorio donde se escriben los archivos convertidos (obligatorio)",
+		BtnBrowse:      "Examinar...",
+		LblSuffix:      "Añadir sufijo al archivo de salida:",
+		TipSuffix:      "Añadir sufijo al nombre de archivo, p. ej. nombrearchivo_sufijo.cbz",
+		LblArchive:     "Formato de archivo:",
+		TipArchive:     "Contenedor de salida: ZIP (.cbz) o TAR sin comprimir (.cbt)",
+		LblCompression: "Compresión:",
+		TipZipLevel:    "Compresión ZIP: Almacenar la desactiva, 1 es la más rápida, 9 la más pequeña",
+		TglCombine:     " Combinar en un solo archivo",
+		TipCombine:     "Fusionar todos los archivos listados en un solo archivo",
+		LblOutFile:     "Archivo de salida:",
+		TipOutFile:     "Nombre del archivo combinado (predeterminado: primera entrada + -combined)",
+
+		LblFormat:      "Formato:",
+		TipFormat:      "Formato de imagen de salida para las páginas convertidas",
+		LblSize:        "Tamaño:",
+		CueWidth:       "ancho",
+		CueHeight:      "alto",
+		TipWidthHeight: "Si no se define el ancho o el alto, se conserva la relación de aspecto de la imagen",
+		TglFit:         " Ajuste óptimo",
+		TipFit:         "Ajuste óptimo al ancho y alto requeridos",
+		TglNoUpscale:   " No ampliar",
+		TipNoUpscale:   "No ampliar imágenes que ya son más pequeñas que el tamaño solicitado",
+		LblFilter:      "Filtro de redimensionado:",
+		LblQuality:     "Calidad: ",
+		TipQuality:     "La calidad afecta a JPEG, WEBP, AVIF y JXL",
+		LblEffort:      "Esfuerzo:",
+		TipEffort:      "Velocidad/esfuerzo del codificador (WEBP, AVIF, JXL)",
+		TglLossless:    " Sin pérdidas",
+		TipLossless:    "Compresión sin pérdidas (WEBP, AVIF, JXL), ignora la calidad",
+		TglGrayscale:   " Escala de grises",
+		TipGrayscale:   "Convertir imágenes a escala de grises (monocromático)",
+
+		LblBrightness: "Brillo: ",
+		TipBrightness: "Ajustar el brillo de las imágenes",
+		LblContrast:   "Contraste: ",
+		TipContrast:   "Ajustar el contraste de las imágenes",
+		LblRotate:     "Rotar:",
+		TipRotate:     "Rotar cada página en sentido horario el ángulo dado en grados",
+
+		EffortMethod:  "Método",
+		EffortSpeed:   "Velocidad",
+		EffortEffort:  "Esfuerzo",
+		TipEffortWebp: "Método WEBP, más alto es mejor/más lento (0-6, predeterminado 4)",
+		TipEffortAvif: "Velocidad AVIF, más alto es más rápido/peor (0-10, predeterminado 10)",
+		TipEffortJxl:  "Esfuerzo JXL, más alto es mejor/más lento (1-10, predeterminado 7)",
+
+		BtnAddFiles:  "Añadir &archivos...",
+		BtnAddDir:    "Añadir &directorio...",
+		BtnRemove:    "Eliminar",
+		BtnRemoveAll: "Eliminar todo",
+		BtnThumbnail: "Miniatura",
+		BtnCover:     "Portada",
+		BtnConvert:   "&Convertir",
+		BtnCancel:    "Cancelar",
+		TipCancel:    "Cancelar la operación en curso (o pulsar Esc)",
+		BtnReset:     "Restablecer",
+		TipReset:     "Restaurar todos los ajustes a sus valores predeterminados",
+		BtnSave:      "Guardar",
+		TipSave:      "Guardar los ajustes actuales en un perfil",
+		BtnCommand:   "Comando",
+		TipCommand:   "Mostrar la línea de comandos equivalente",
+		LblProfile:   "Perfil:",
+		TipProfile:   "Seleccionar un perfil de ajustes",
+
+		TipThumbnail: "Extraer miniaturas de portada",
+		TipCover:     "Extraer portadas",
+		TipConvert:   "Convertir archivos al formato seleccionado",
+
+		StatusNeedFilesAndDir: "Añadir archivos y establecer el directorio de salida",
+		StatusNeedFiles:       "Añadir archivos",
+		StatusNeedOutDir:      "Establecer el directorio de salida",
+		StatusFileOf:          "Archivo %d de %d",
+
+		FilterNearest:  "NearestNeighbor es el filtro de remuestreo más rápido, sin antialiasing",
+		FilterBox:      "Filtro Box (promedio de píxeles)",
+		FilterLinear:   "Linear es el filtro bilineal, suave y razonablemente rápido",
+		FilterMitchell: "MitchellNetravali es un filtro bicúbico suave",
+		FilterCatmull:  "CatmullRom es un filtro bicúbico nítido",
+		FilterGaussian: "Gaussian es un filtro de desenfoque que usa la función gaussiana, útil para eliminar ruido",
+		FilterLanczos:  "Lanczos es un filtro de remuestreo de alta calidad, más lento que los filtros cúbicos",
+
+		DlgAddFiles:    "Añadir archivos",
+		DlgAddDir:      "Añadir directorio",
+		DlgOutputDir:   "Directorio de salida",
+		DlgOutputFile:  "Archivo de salida",
+		DlgCommandLine: "Línea de comandos",
+		DlgSaveProfile: "Guardar perfil",
+
+		ParamName:           "Nombre: %s\n",
+		MsgInvalidNameTitle: "Nombre no válido",
+		MsgInvalidNameBody:  "El nombre del perfil no debe estar vacío ni contener '.' o ';'.",
+
+		NoPreview: "Sin vista previa",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_fr.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("FRENCH", map[string]string{
+		ColTitle: "Titre",
+		ColType:  "Type",
+		ColSize:  "Taille (Mio)",
+
+		TabInput:     "Entrée",
+		TabOutput:    "Sortie",
+		TabImage:     "Image",
+		TabTransform: "Transformation",
+
+		LblPage: "Page :",
+		TipPage: "Prévisualiser une autre page de la bande dessinée sélectionnée",
+
+		TglRecursive:  " Parcourir les sous-dossiers",
+		TipRecursive:  "Traiter les sous-dossiers de manière récursive",
+		TglNoRGB:      " Images en niveaux de gris uniquement",
+		TipNoRGB:      "Ne pas convertir les images ayant un espace colorimétrique RVB",
+		TglNoCover:    " Exclure la couverture",
+		TipNoCover:    "Ne pas convertir l'image de couverture",
+		TglNoNonImage: " Supprimer les fichiers non-image de l'archive",
+		TipNoNonImage: "Supprimer les fichiers .nfo, .xml, .txt de l'archive",
+		TglNoConvert:  " Ne pas transformer ni convertir les images",
+		TipNoConvert:  "Copier les images de l'archive ou du dossier sans modifications",
+		LblMinSize:    "Taille minimale (Mio) :",
+		TipSize:       "Ne traiter que les fichiers plus grands que la taille minimale",
+		LblDPI:        "DPI du document :",
+		TipDPI:        "Résolution pour le rendu des documents (PDF, EPUB, etc.) ; la valeur par défaut utilise la résolution d'origine",
+
+		LblOutDir:      "Dossier de sortie :",
+		TipOutDir:      "Dossier où les fichiers convertis sont écrits (obligatoire)",
+		BtnBrowse:      "Parcourir...",
+		LblSuffix:      "Ajouter un suffixe au fichier de sortie :",
+		TipSuffix:      "Ajouter un suffixe au nom de fichier, par ex. nomfichier_suffixe.cbz",
+		LblArchive:     "Format d'archive :",
+		TipArchive:     "Conteneur de sortie : ZIP (.cbz) ou TAR non compressé (.cbt)",
+		LblCompression: "Compression :",
+		TipZipLevel:    "Compression ZIP : Stocker la désactive, 1 est le plus rapide, 9 le plus petit",
+		TglCombine:     " Combiner en un seul fichier",
+		TipCombine:     "Fusionner tous les fichiers listés en une seule archive",
+		LblOutFile:     "Fichier de sortie :",
+		TipOutFile:     "Nom du fichier combiné (par défaut : première entrée + -combined)",
+
+		LblFormat:      "Format :",
+		TipFormat:      "Format d'image de sortie pour les pages converties",
+		LblSize:        "Taille :",
+		CueWidth:       "largeur",
+		CueHeight:      "hauteur",
+		TipWidthHeight: "Si la largeur ou la hauteur n'est pas définie, le rapport d'aspect de l'image est conservé",
+		TglFit:         " Ajustement optimal",
+		TipFit:         "Ajustement optimal à la largeur et la hauteur requises",
+		TglNoUpscale:   " Ne pas agrandir",
+		TipNoUpscale:   "Ne pas agrandir les images déjà plus petites que la taille demandée",
+		LblFilter:      "Filtre de redimensionnement :",
+		LblQuality:     "Qualité : ",
+		TipQuality:     "La qualité concerne JPEG, WEBP, AVIF et JXL",
+		LblEffort:      "Effort :",
+		TipEffort:      "Vitesse/effort de l'encodeur (WEBP, AVIF, JXL)",
+		TglLossless:    " Sans perte",
+		TipLossless:    "Compression sans perte (WEBP, AVIF, JXL), ignore la qualité",
+		TglGrayscale:   " Niveaux de gris",
+		TipGrayscale:   "Convertir les images en niveaux de gris (monochrome)",
+
+		LblBrightness: "Luminosité : ",
+		TipBrightness: "Ajuster la luminosité des images",
+		LblContrast:   "Contraste : ",
+		TipContrast:   "Ajuster le contraste des images",
+		LblRotate:     "Rotation :",
+		TipRotate:     "Faire pivoter chaque page dans le sens horaire de l'angle donné en degrés",
+
+		EffortMethod:  "Méthode",
+		EffortSpeed:   "Vitesse",
+		EffortEffort:  "Effort",
+		TipEffortWebp: "Méthode WEBP, plus élevé est meilleur/plus lent (0-6, défaut 4)",
+		TipEffortAvif: "Vitesse AVIF, plus élevé est plus rapide/moins bon (0-10, défaut 10)",
+		TipEffortJxl:  "Effort JXL, plus élevé est meilleur/plus lent (1-10, défaut 7)",
+
+		BtnAddFiles:  "Ajouter des &fichiers...",
+		BtnAddDir:    "Ajouter un &dossier...",
+		BtnRemove:    "Supprimer",
+		BtnRemoveAll: "Tout supprimer",
+		BtnThumbnail: "Miniature",
+		BtnCover:     "Couverture",
+		BtnConvert:   "&Convertir",
+		BtnCancel:    "Annuler",
+		TipCancel:    "Annuler l'opération en cours (ou appuyer sur Échap)",
+		BtnReset:     "Réinitialiser",
+		TipReset:     "Restaurer tous les paramètres à leurs valeurs par défaut",
+		BtnSave:      "Enregistrer",
+		TipSave:      "Enregistrer les paramètres actuels dans un profil",
+		BtnCommand:   "Commande",
+		TipCommand:   "Afficher la ligne de commande équivalente",
+		LblProfile:   "Profil :",
+		TipProfile:   "Sélectionner un profil de paramètres",
+
+		TipThumbnail: "Extraire les miniatures de couverture",
+		TipCover:     "Extraire les couvertures",
+		TipConvert:   "Convertir les fichiers vers le format sélectionné",
+
+		StatusNeedFilesAndDir: "Ajouter des fichiers et définir le dossier de sortie",
+		StatusNeedFiles:       "Ajouter des fichiers",
+		StatusNeedOutDir:      "Définir le dossier de sortie",
+		StatusFileOf:          "Fichier %d sur %d",
+
+		FilterNearest:  "NearestNeighbor est le filtre de rééchantillonnage le plus rapide, sans anticrénelage",
+		FilterBox:      "Filtre Box (moyenne des pixels)",
+		FilterLinear:   "Linear est le filtre bilinéaire, lisse et raisonnablement rapide",
+		FilterMitchell: "MitchellNetravali est un filtre bicubique lisse",
+		FilterCatmull:  "CatmullRom est un filtre bicubique net",
+		FilterGaussian: "Gaussian est un filtre de flou utilisant la fonction gaussienne, utile pour la réduction du bruit",
+		FilterLanczos:  "Lanczos est un filtre de rééchantillonnage de haute qualité, plus lent que les filtres cubiques",
+
+		DlgAddFiles:    "Ajouter des fichiers",
+		DlgAddDir:      "Ajouter un dossier",
+		DlgOutputDir:   "Dossier de sortie",
+		DlgOutputFile:  "Fichier de sortie",
+		DlgCommandLine: "Ligne de commande",
+		DlgSaveProfile: "Enregistrer le profil",
+
+		ParamName:           "Nom : %s\n",
+		MsgInvalidNameTitle: "Nom invalide",
+		MsgInvalidNameBody:  "Le nom du profil ne doit pas être vide ni contenir '.' ou ';'.",
+
+		NoPreview: "Aucun aperçu",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_it.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("ITALIAN", map[string]string{
+		ColTitle: "Titolo",
+		ColType:  "Tipo",
+		ColSize:  "Dimensione (MiB)",
+
+		TabInput:     "Ingresso",
+		TabOutput:    "Uscita",
+		TabImage:     "Immagine",
+		TabTransform: "Trasforma",
+
+		LblPage: "Pagina:",
+		TipPage: "Anteprima di un'altra pagina del fumetto selezionato",
+
+		TglRecursive:  " Esplora sottocartelle",
+		TipRecursive:  "Elabora le sottocartelle in modo ricorsivo",
+		TglNoRGB:      " Solo immagini in scala di grigi",
+		TipNoRGB:      "Non convertire le immagini con spazio colore RGB",
+		TglNoCover:    " Escludi la copertina",
+		TipNoCover:    "Non convertire l'immagine di copertina",
+		TglNoNonImage: " Rimuovi i file non immagine dall'archivio",
+		TipNoNonImage: "Rimuovi i file .nfo, .xml, .txt dall'archivio",
+		TglNoConvert:  " Non trasformare né convertire le immagini",
+		TipNoConvert:  "Copia le immagini dall'archivio o dalla cartella senza modifiche",
+		LblMinSize:    "Dimensione minima (MiB):",
+		TipSize:       "Elabora solo i file più grandi della dimensione minima",
+		LblDPI:        "DPI del documento:",
+		TipDPI:        "Risoluzione per il rendering dei documenti (PDF, EPUB, ecc.); il valore predefinito usa la risoluzione originale",
+
+		LblOutDir:      "Cartella di uscita:",
+		TipOutDir:      "Cartella in cui vengono scritti i file convertiti (obbligatoria)",
+		BtnBrowse:      "Sfoglia...",
+		LblSuffix:      "Aggiungi suffisso al file di uscita:",
+		TipSuffix:      "Aggiungi un suffisso al nome del file, ad es. nomefile_suffisso.cbz",
+		LblArchive:     "Formato archivio:",
+		TipArchive:     "Contenitore di uscita: ZIP (.cbz) o TAR non compresso (.cbt)",
+		LblCompression: "Compressione:",
+		TipZipLevel:    "Compressione ZIP: Memorizza la disattiva, 1 è la più veloce, 9 la più piccola",
+		TglCombine:     " Combina in un unico file",
+		TipCombine:     "Unisci tutti i file elencati in un unico archivio",
+		LblOutFile:     "File di uscita:",
+		TipOutFile:     "Nome del file combinato (predefinito: primo ingresso + -combined)",
+
+		LblFormat:      "Formato:",
+		TipFormat:      "Formato immagine di uscita per le pagine convertite",
+		LblSize:        "Dimensione:",
+		CueWidth:       "larghezza",
+		CueHeight:      "altezza",
+		TipWidthHeight: "Se la larghezza o l'altezza non è impostata, viene mantenuto il rapporto d'aspetto dell'immagine",
+		TglFit:         " Adattamento ottimale",
+		TipFit:         "Adattamento ottimale alla larghezza e all'altezza richieste",
+		TglNoUpscale:   " Non ingrandire",
+		TipNoUpscale:   "Non ingrandire le immagini già più piccole della dimensione richiesta",
+		LblFilter:      "Filtro di ridimensionamento:",
+		LblQuality:     "Qualità: ",
+		TipQuality:     "La qualità riguarda JPEG, WEBP, AVIF e JXL",
+		LblEffort:      "Sforzo:",
+		TipEffort:      "Velocità/sforzo del codificatore (WEBP, AVIF, JXL)",
+		TglLossless:    " Senza perdita",
+		TipLossless:    "Compressione senza perdita (WEBP, AVIF, JXL), ignora la qualità",
+		TglGrayscale:   " Scala di grigi",
+		TipGrayscale:   "Converti le immagini in scala di grigi (monocromatico)",
+
+		LblBrightness: "Luminosità: ",
+		TipBrightness: "Regola la luminosità delle immagini",
+		LblContrast:   "Contrasto: ",
+		TipContrast:   "Regola il contrasto delle immagini",
+		LblRotate:     "Ruota:",
+		TipRotate:     "Ruota ogni pagina in senso orario dell'angolo indicato in gradi",
+
+		EffortMethod:  "Metodo",
+		EffortSpeed:   "Velocità",
+		EffortEffort:  "Sforzo",
+		TipEffortWebp: "Metodo WEBP, più alto è migliore/più lento (0-6, predefinito 4)",
+		TipEffortAvif: "Velocità AVIF, più alto è più veloce/peggiore (0-10, predefinito 10)",
+		TipEffortJxl:  "Sforzo JXL, più alto è migliore/più lento (1-10, predefinito 7)",
+
+		BtnAddFiles:  "Aggiungi &file...",
+		BtnAddDir:    "Aggiungi &cartella...",
+		BtnRemove:    "Rimuovi",
+		BtnRemoveAll: "Rimuovi tutto",
+		BtnThumbnail: "Miniatura",
+		BtnCover:     "Copertina",
+		BtnConvert:   "&Converti",
+		BtnCancel:    "Annulla",
+		TipCancel:    "Annulla l'operazione in corso (o premi Esc)",
+		BtnReset:     "Ripristina",
+		TipReset:     "Ripristina tutte le impostazioni ai valori predefiniti",
+		BtnSave:      "Salva",
+		TipSave:      "Salva le impostazioni correnti in un profilo",
+		BtnCommand:   "Comando",
+		TipCommand:   "Mostra la riga di comando equivalente",
+		LblProfile:   "Profilo:",
+		TipProfile:   "Seleziona un profilo di impostazioni",
+
+		TipThumbnail: "Estrai le miniature delle copertine",
+		TipCover:     "Estrai le copertine",
+		TipConvert:   "Converti i file nel formato selezionato",
+
+		StatusNeedFilesAndDir: "Aggiungi file e imposta la cartella di uscita",
+		StatusNeedFiles:       "Aggiungi file",
+		StatusNeedOutDir:      "Imposta la cartella di uscita",
+		StatusFileOf:          "File %d di %d",
+
+		FilterNearest:  "NearestNeighbor è il filtro di ricampionamento più veloce, senza antialiasing",
+		FilterBox:      "Filtro Box (media dei pixel)",
+		FilterLinear:   "Linear è il filtro bilineare, morbido e ragionevolmente veloce",
+		FilterMitchell: "MitchellNetravali è un filtro bicubico morbido",
+		FilterCatmull:  "CatmullRom è un filtro bicubico nitido",
+		FilterGaussian: "Gaussian è un filtro di sfocatura che usa la funzione gaussiana, utile per la rimozione del rumore",
+		FilterLanczos:  "Lanczos è un filtro di ricampionamento di alta qualità, più lento dei filtri cubici",
+
+		DlgAddFiles:    "Aggiungi file",
+		DlgAddDir:      "Aggiungi cartella",
+		DlgOutputDir:   "Cartella di uscita",
+		DlgOutputFile:  "File di uscita",
+		DlgCommandLine: "Riga di comando",
+		DlgSaveProfile: "Salva profilo",
+
+		ParamName:           "Nome: %s\n",
+		MsgInvalidNameTitle: "Nome non valido",
+		MsgInvalidNameBody:  "Il nome del profilo non deve essere vuoto né contenere '.' o ';'.",
+
+		NoPreview: "Nessuna anteprima",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_ja.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("JAPANESE", map[string]string{
+		ColTitle: "タイトル",
+		ColType:  "種類",
+		ColSize:  "サイズ (MiB)",
+
+		TabInput:     "入力",
+		TabOutput:    "出力",
+		TabImage:     "画像",
+		TabTransform: "変換",
+
+		LblPage: "ページ：",
+		TipPage: "選択したコミックの別のページをプレビュー",
+
+		TglRecursive:  " サブディレクトリを再帰的に処理",
+		TipRecursive:  "サブディレクトリを再帰的に処理する",
+		TglNoRGB:      " グレースケール画像のみ",
+		TipNoRGB:      "RGB 色空間の画像を変換しない",
+		TglNoCover:    " 表紙を除外",
+		TipNoCover:    "表紙画像を変換しない",
+		TglNoNonImage: " アーカイブから画像以外のファイルを削除",
+		TipNoNonImage: "アーカイブから .nfo、.xml、.txt ファイルを削除する",
+		TglNoConvert:  " 画像を変換・変形しない",
+		TipNoConvert:  "アーカイブまたはディレクトリから画像を変更せずにコピーする",
+		LblMinSize:    "最小サイズ (MiB)：",
+		TipSize:       "最小サイズより大きいファイルのみ処理する",
+		LblDPI:        "ドキュメント DPI：",
+		TipDPI:        "ドキュメント（PDF、EPUB など）をレンダリングする解像度。既定値は元の解像度を使用します",
+
+		LblOutDir:      "出力ディレクトリ：",
+		TipOutDir:      "変換されたファイルが書き込まれるディレクトリ（必須）",
+		BtnBrowse:      "参照...",
+		LblSuffix:      "出力ファイルにサフィックスを追加：",
+		TipSuffix:      "ファイル名にサフィックスを追加する。例: filename_suffix.cbz",
+		LblArchive:     "アーカイブ形式：",
+		TipArchive:     "出力コンテナ: ZIP (.cbz) または非圧縮の TAR (.cbt)",
+		LblCompression: "圧縮：",
+		TipZipLevel:    "ZIP 圧縮: 「保存」で無効化、1 が最速、9 が最小",
+		TglCombine:     " 単一ファイルに結合",
+		TipCombine:     "リストされたすべてのファイルを 1 つのアーカイブに結合する",
+		LblOutFile:     "出力ファイル：",
+		TipOutFile:     "結合ファイル名（既定: 最初の入力 + -combined）",
+
+		LblFormat:      "形式：",
+		TipFormat:      "変換されるページの出力画像形式",
+		LblSize:        "サイズ：",
+		CueWidth:       "幅",
+		CueHeight:      "高さ",
+		TipWidthHeight: "幅または高さが設定されていない場合、画像の縦横比が保持されます",
+		TglFit:         " 最適化",
+		TipFit:         "必要な幅と高さに最適化",
+		TglNoUpscale:   " 拡大しない",
+		TipNoUpscale:   "要求されたサイズより既に小さい画像を拡大しない",
+		LblFilter:      "リサイズフィルター：",
+		LblQuality:     "品質：",
+		TipQuality:     "品質は JPEG、WEBP、AVIF、JXL に影響します",
+		LblEffort:      "労力：",
+		TipEffort:      "エンコーダーの速度/労力（WEBP、AVIF、JXL）",
+		TglLossless:    " ロスレス",
+		TipLossless:    "ロスレス圧縮（WEBP、AVIF、JXL）、品質を無視します",
+		TglGrayscale:   " グレースケール",
+		TipGrayscale:   "画像をグレースケール（モノクロ）に変換する",
+
+		LblBrightness: "明るさ：",
+		TipBrightness: "画像の明るさを調整する",
+		LblContrast:   "コントラスト：",
+		TipContrast:   "画像のコントラストを調整する",
+		LblRotate:     "回転：",
+		TipRotate:     "各ページを指定した角度（度）だけ時計回りに回転する",
+
+		EffortMethod:  "方式",
+		EffortSpeed:   "速度",
+		EffortEffort:  "労力",
+		TipEffortWebp: "WEBP 方式、高いほど高品質/低速（0-6、既定 4）",
+		TipEffortAvif: "AVIF 速度、高いほど高速/低品質（0-10、既定 10）",
+		TipEffortJxl:  "JXL 労力、高いほど高品質/低速（1-10、既定 7）",
+
+		BtnAddFiles:  "ファイルを追加(&F)...",
+		BtnAddDir:    "ディレクトリを追加(&D)...",
+		BtnRemove:    "削除",
+		BtnRemoveAll: "すべて削除",
+		BtnThumbnail: "サムネイル",
+		BtnCover:     "表紙",
+		BtnConvert:   "変換(&C)",
+		BtnCancel:    "キャンセル",
+		TipCancel:    "実行中の操作をキャンセル（または Esc キーを押す）",
+		BtnReset:     "リセット",
+		TipReset:     "すべての設定を既定値に戻す",
+		BtnSave:      "保存",
+		TipSave:      "現在の設定をプロファイルに保存する",
+		BtnCommand:   "コマンド",
+		TipCommand:   "同等のコマンドラインを表示する",
+		LblProfile:   "プロファイル：",
+		TipProfile:   "設定プロファイルを選択する",
+
+		TipThumbnail: "表紙のサムネイルを抽出する",
+		TipCover:     "表紙を抽出する",
+		TipConvert:   "ファイルを選択した形式に変換する",
+
+		StatusNeedFilesAndDir: "ファイルを追加し、出力ディレクトリを設定してください",
+		StatusNeedFiles:       "ファイルを追加してください",
+		StatusNeedOutDir:      "出力ディレクトリを設定してください",
+		StatusFileOf:          "ファイル %d / %d",
+
+		FilterNearest:  "NearestNeighbor は最速のリサンプリングフィルターで、アンチエイリアスなし",
+		FilterBox:      "Box フィルター（ピクセルの平均化）",
+		FilterLinear:   "Linear はバイリニアフィルターで、滑らかでそれなりに高速",
+		FilterMitchell: "MitchellNetravali は滑らかなバイキュービックフィルター",
+		FilterCatmull:  "CatmullRom はシャープなバイキュービックフィルター",
+		FilterGaussian: "Gaussian はガウス関数を使用するぼかしフィルターで、ノイズ除去に便利",
+		FilterLanczos:  "Lanczos は高品質なリサンプリングフィルターで、キュービックフィルターより低速",
+
+		DlgAddFiles:    "ファイルを追加",
+		DlgAddDir:      "ディレクトリを追加",
+		DlgOutputDir:   "出力ディレクトリ",
+		DlgOutputFile:  "出力ファイル",
+		DlgCommandLine: "コマンドライン",
+		DlgSaveProfile: "プロファイルを保存",
+
+		ParamName:           "名前：%s\n",
+		MsgInvalidNameTitle: "無効な名前",
+		MsgInvalidNameBody:  "プロファイル名は空にすることはできず、'.' または ';' を含めることはできません。",
+
+		NoPreview: "プレビューなし",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_pt.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("PORTUGUESE", map[string]string{
+		ColTitle: "Título",
+		ColType:  "Tipo",
+		ColSize:  "Tamanho (MiB)",
+
+		TabInput:     "Entrada",
+		TabOutput:    "Saída",
+		TabImage:     "Imagem",
+		TabTransform: "Transformar",
+
+		LblPage: "Página:",
+		TipPage: "Pré-visualizar outra página da revista em quadrinhos selecionada",
+
+		TglRecursive:  " Percorrer subdiretórios",
+		TipRecursive:  "Processar subdiretórios recursivamente",
+		TglNoRGB:      " Apenas imagens em escala de cinza",
+		TipNoRGB:      "Não converter imagens que tenham espaço de cor RGB",
+		TglNoCover:    " Excluir a capa",
+		TipNoCover:    "Não converter a imagem de capa",
+		TglNoNonImage: " Remover arquivos não-imagem do arquivo",
+		TipNoNonImage: "Remover arquivos .nfo, .xml, .txt do arquivo",
+		TglNoConvert:  " Não transformar nem converter imagens",
+		TipNoConvert:  "Copiar imagens do arquivo ou diretório sem modificações",
+		LblMinSize:    "Tamanho mínimo (MiB):",
+		TipSize:       "Processar apenas arquivos maiores que o tamanho mínimo",
+		LblDPI:        "DPI do documento:",
+		TipDPI:        "Resolução para renderizar documentos (PDF, EPUB, etc.); o padrão usa a resolução original",
+
+		LblOutDir:      "Diretório de saída:",
+		TipOutDir:      "Diretório onde os arquivos convertidos são gravados (obrigatório)",
+		BtnBrowse:      "Procurar...",
+		LblSuffix:      "Adicionar sufixo ao arquivo de saída:",
+		TipSuffix:      "Adicionar sufixo ao nome do arquivo, p. ex. nomearquivo_sufixo.cbz",
+		LblArchive:     "Formato de arquivo:",
+		TipArchive:     "Contêiner de saída: ZIP (.cbz) ou TAR não comprimido (.cbt)",
+		LblCompression: "Compressão:",
+		TipZipLevel:    "Compressão ZIP: Armazenar a desativa, 1 é a mais rápida, 9 a menor",
+		TglCombine:     " Combinar em um único arquivo",
+		TipCombine:     "Mesclar todos os arquivos listados em um único arquivo",
+		LblOutFile:     "Arquivo de saída:",
+		TipOutFile:     "Nome do arquivo combinado (padrão: primeira entrada + -combined)",
+
+		LblFormat:      "Formato:",
+		TipFormat:      "Formato de imagem de saída para as páginas convertidas",
+		LblSize:        "Tamanho:",
+		CueWidth:       "largura",
+		CueHeight:      "altura",
+		TipWidthHeight: "Se a largura ou a altura não for definida, a proporção da imagem é preservada",
+		TglFit:         " Melhor ajuste",
+		TipFit:         "Melhor ajuste à largura e altura desejadas",
+		TglNoUpscale:   " Não ampliar",
+		TipNoUpscale:   "Não ampliar imagens que já são menores que o tamanho solicitado",
+		LblFilter:      "Filtro de redimensionamento:",
+		LblQuality:     "Qualidade: ",
+		TipQuality:     "A qualidade afeta JPEG, WEBP, AVIF e JXL",
+		LblEffort:      "Esforço:",
+		TipEffort:      "Velocidade/esforço do codificador (WEBP, AVIF, JXL)",
+		TglLossless:    " Sem perdas",
+		TipLossless:    "Compressão sem perdas (WEBP, AVIF, JXL), ignora a qualidade",
+		TglGrayscale:   " Escala de cinza",
+		TipGrayscale:   "Converter imagens para escala de cinza (monocromático)",
+
+		LblBrightness: "Brilho: ",
+		TipBrightness: "Ajustar o brilho das imagens",
+		LblContrast:   "Contraste: ",
+		TipContrast:   "Ajustar o contraste das imagens",
+		LblRotate:     "Girar:",
+		TipRotate:     "Girar cada página no sentido horário pelo ângulo dado em graus",
+
+		EffortMethod:  "Método",
+		EffortSpeed:   "Velocidade",
+		EffortEffort:  "Esforço",
+		TipEffortWebp: "Método WEBP, mais alto é melhor/mais lento (0-6, padrão 4)",
+		TipEffortAvif: "Velocidade AVIF, mais alto é mais rápido/pior (0-10, padrão 10)",
+		TipEffortJxl:  "Esforço JXL, mais alto é melhor/mais lento (1-10, padrão 7)",
+
+		BtnAddFiles:  "Adicionar &arquivos...",
+		BtnAddDir:    "Adicionar &diretório...",
+		BtnRemove:    "Remover",
+		BtnRemoveAll: "Remover tudo",
+		BtnThumbnail: "Miniatura",
+		BtnCover:     "Capa",
+		BtnConvert:   "&Converter",
+		BtnCancel:    "Cancelar",
+		TipCancel:    "Cancelar a operação em andamento (ou pressionar Esc)",
+		BtnReset:     "Redefinir",
+		TipReset:     "Restaurar todas as configurações para os valores padrão",
+		BtnSave:      "Salvar",
+		TipSave:      "Salvar as configurações atuais em um perfil",
+		BtnCommand:   "Comando",
+		TipCommand:   "Mostrar a linha de comando equivalente",
+		LblProfile:   "Perfil:",
+		TipProfile:   "Selecionar um perfil de configurações",
+
+		TipThumbnail: "Extrair miniaturas de capa",
+		TipCover:     "Extrair capas",
+		TipConvert:   "Converter arquivos para o formato selecionado",
+
+		StatusNeedFilesAndDir: "Adicionar arquivos e definir o diretório de saída",
+		StatusNeedFiles:       "Adicionar arquivos",
+		StatusNeedOutDir:      "Definir o diretório de saída",
+		StatusFileOf:          "Arquivo %d de %d",
+
+		FilterNearest:  "NearestNeighbor é o filtro de reamostragem mais rápido, sem antisserrilhamento",
+		FilterBox:      "Filtro Box (média dos pixels)",
+		FilterLinear:   "Linear é o filtro bilinear, suave e razoavelmente rápido",
+		FilterMitchell: "MitchellNetravali é um filtro bicúbico suave",
+		FilterCatmull:  "CatmullRom é um filtro bicúbico nítido",
+		FilterGaussian: "Gaussian é um filtro de desfoque que usa a função gaussiana, útil para remoção de ruído",
+		FilterLanczos:  "Lanczos é um filtro de reamostragem de alta qualidade, mais lento que os filtros cúbicos",
+
+		DlgAddFiles:    "Adicionar arquivos",
+		DlgAddDir:      "Adicionar diretório",
+		DlgOutputDir:   "Diretório de saída",
+		DlgOutputFile:  "Arquivo de saída",
+		DlgCommandLine: "Linha de comando",
+		DlgSaveProfile: "Salvar perfil",
+
+		ParamName:           "Nome: %s\n",
+		MsgInvalidNameTitle: "Nome inválido",
+		MsgInvalidNameBody:  "O nome do perfil não deve estar vazio nem conter '.' ou ';'.",
+
+		NoPreview: "Sem pré-visualização",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_ru.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("RUSSIAN", map[string]string{
+		ColTitle: "Название",
+		ColType:  "Тип",
+		ColSize:  "Размер (МиБ)",
+
+		TabInput:     "Ввод",
+		TabOutput:    "Вывод",
+		TabImage:     "Изображение",
+		TabTransform: "Преобразование",
+
+		LblPage: "Страница:",
+		TipPage: "Предпросмотр другой страницы выбранного комикса",
+
+		TglRecursive:  " Обрабатывать подкаталоги",
+		TipRecursive:  "Рекурсивно обрабатывать подкаталоги",
+		TglNoRGB:      " Только изображения в оттенках серого",
+		TipNoRGB:      "Не преобразовывать изображения в цветовом пространстве RGB",
+		TglNoCover:    " Исключить обложку",
+		TipNoCover:    "Не преобразовывать изображение обложки",
+		TglNoNonImage: " Удалить из архива файлы, не являющиеся изображениями",
+		TipNoNonImage: "Удалить из архива файлы .nfo, .xml, .txt",
+		TglNoConvert:  " Не преобразовывать изображения",
+		TipNoConvert:  "Копировать изображения из архива или каталога без изменений",
+		LblMinSize:    "Минимальный размер (МиБ):",
+		TipSize:       "Обрабатывать только файлы больше минимального размера",
+		LblDPI:        "DPI документа:",
+		TipDPI:        "Разрешение для рендеринга документов (PDF, EPUB и т. д.); по умолчанию используется исходное разрешение",
+
+		LblOutDir:      "Каталог вывода:",
+		TipOutDir:      "Каталог, в который записываются преобразованные файлы (обязательно)",
+		BtnBrowse:      "Обзор...",
+		LblSuffix:      "Добавить суффикс к выходному файлу:",
+		TipSuffix:      "Добавить суффикс к имени файла, например имяфайла_суффикс.cbz",
+		LblArchive:     "Формат архива:",
+		TipArchive:     "Выходной контейнер: ZIP (.cbz) или несжатый TAR (.cbt)",
+		LblCompression: "Сжатие:",
+		TipZipLevel:    "Сжатие ZIP: «Хранить» отключает его, 1 — самое быстрое, 9 — наименьшее",
+		TglCombine:     " Объединить в один файл",
+		TipCombine:     "Объединить все перечисленные файлы в один архив",
+		LblOutFile:     "Выходной файл:",
+		TipOutFile:     "Имя объединённого файла (по умолчанию: первый ввод + -combined)",
+
+		LblFormat:      "Формат:",
+		TipFormat:      "Выходной формат изображения для преобразованных страниц",
+		LblSize:        "Размер:",
+		CueWidth:       "ширина",
+		CueHeight:      "высота",
+		TipWidthHeight: "Если ширина или высота не задана, соотношение сторон изображения сохраняется",
+		TglFit:         " Наилучшее соответствие",
+		TipFit:         "Наилучшее соответствие требуемой ширине и высоте",
+		TglNoUpscale:   " Не увеличивать",
+		TipNoUpscale:   "Не увеличивать изображения, которые уже меньше запрошенного размера",
+		LblFilter:      "Фильтр масштабирования:",
+		LblQuality:     "Качество: ",
+		TipQuality:     "Качество влияет на JPEG, WEBP, AVIF и JXL",
+		LblEffort:      "Усилие:",
+		TipEffort:      "Скорость/усилие кодировщика (WEBP, AVIF, JXL)",
+		TglLossless:    " Без потерь",
+		TipLossless:    "Сжатие без потерь (WEBP, AVIF, JXL), игнорирует качество",
+		TglGrayscale:   " Оттенки серого",
+		TipGrayscale:   "Преобразовать изображения в оттенки серого (монохромные)",
+
+		LblBrightness: "Яркость: ",
+		TipBrightness: "Настроить яркость изображений",
+		LblContrast:   "Контраст: ",
+		TipContrast:   "Настроить контраст изображений",
+		LblRotate:     "Поворот:",
+		TipRotate:     "Поворачивать каждую страницу по часовой стрелке на заданный угол в градусах",
+
+		EffortMethod:  "Метод",
+		EffortSpeed:   "Скорость",
+		EffortEffort:  "Усилие",
+		TipEffortWebp: "Метод WEBP, выше — лучше/медленнее (0-6, по умолчанию 4)",
+		TipEffortAvif: "Скорость AVIF, выше — быстрее/хуже (0-10, по умолчанию 10)",
+		TipEffortJxl:  "Усилие JXL, выше — лучше/медленнее (1-10, по умолчанию 7)",
+
+		BtnAddFiles:  "Добавить &файлы...",
+		BtnAddDir:    "Добавить &каталог...",
+		BtnRemove:    "Удалить",
+		BtnRemoveAll: "Удалить все",
+		BtnThumbnail: "Эскиз",
+		BtnCover:     "Обложка",
+		BtnConvert:   "&Преобразовать",
+		BtnCancel:    "Отмена",
+		TipCancel:    "Отменить выполняемую операцию (или нажать Esc)",
+		BtnReset:     "Сбросить",
+		TipReset:     "Восстановить все настройки до значений по умолчанию",
+		BtnSave:      "Сохранить",
+		TipSave:      "Сохранить текущие настройки в профиль",
+		BtnCommand:   "Команда",
+		TipCommand:   "Показать эквивалентную командную строку",
+		LblProfile:   "Профиль:",
+		TipProfile:   "Выбрать профиль настроек",
+
+		TipThumbnail: "Извлечь эскизы обложек",
+		TipCover:     "Извлечь обложки",
+		TipConvert:   "Преобразовать файлы в выбранный формат",
+
+		StatusNeedFilesAndDir: "Добавьте файлы и задайте каталог вывода",
+		StatusNeedFiles:       "Добавьте файлы",
+		StatusNeedOutDir:      "Задайте каталог вывода",
+		StatusFileOf:          "Файл %d из %d",
+
+		FilterNearest:  "NearestNeighbor — самый быстрый фильтр передискретизации, без сглаживания",
+		FilterBox:      "Фильтр Box (усреднение пикселей)",
+		FilterLinear:   "Linear — билинейный фильтр, гладкий и достаточно быстрый",
+		FilterMitchell: "MitchellNetravali — гладкий бикубический фильтр",
+		FilterCatmull:  "CatmullRom — резкий бикубический фильтр",
+		FilterGaussian: "Gaussian — размывающий фильтр на основе функции Гаусса, полезен для удаления шума",
+		FilterLanczos:  "Lanczos — высококачественный фильтр передискретизации, медленнее кубических фильтров",
+
+		DlgAddFiles:    "Добавить файлы",
+		DlgAddDir:      "Добавить каталог",
+		DlgOutputDir:   "Каталог вывода",
+		DlgOutputFile:  "Выходной файл",
+		DlgCommandLine: "Командная строка",
+		DlgSaveProfile: "Сохранить профиль",
+
+		ParamName:           "Имя: %s\n",
+		MsgInvalidNameTitle: "Недопустимое имя",
+		MsgInvalidNameBody:  "Имя профиля не должно быть пустым или содержать «.» или «;».",
+
+		NoPreview: "Нет предпросмотра",
+	})
+}

cmd/cbconvert-gui/i18n/i18n_zh.go

@@ -0,0 +1,128 @@
+package i18n
+
+func init() {
+	register("CHINESE", map[string]string{
+		ColTitle: "标题",
+		ColType:  "类型",
+		ColSize:  "大小 (MiB)",
+
+		TabInput:     "输入",
+		TabOutput:    "输出",
+		TabImage:     "图像",
+		TabTransform: "变换",
+
+		LblPage: "页面：",
+		TipPage: "预览所选漫画的其他页面",
+
+		TglRecursive:  " 递归子目录",
+		TipRecursive:  "递归处理子目录",
+		TglNoRGB:      " 仅灰度图像",
+		TipNoRGB:      "不转换具有 RGB 色彩空间的图像",
+		TglNoCover:    " 排除封面",
+		TipNoCover:    "不转换封面图像",
+		TglNoNonImage: " 从存档中移除非图像文件",
+		TipNoNonImage: "从存档中移除 .nfo、.xml、.txt 文件",
+		TglNoConvert:  " 不变换或转换图像",
+		TipNoConvert:  "从存档或目录复制图像而不做修改",
+		LblMinSize:    "最小大小 (MiB)：",
+		TipSize:       "仅处理大于最小大小的文件",
+		LblDPI:        "文档 DPI：",
+		TipDPI:        "渲染文档的分辨率（PDF、EPUB 等）；默认使用原始分辨率",
+
+		LblOutDir:      "输出目录：",
+		TipOutDir:      "写入转换后文件的目录（必填）",
+		BtnBrowse:      "浏览...",
+		LblSuffix:      "为输出文件添加后缀：",
+		TipSuffix:      "为文件名添加后缀，例如 filename_suffix.cbz",
+		LblArchive:     "存档格式：",
+		TipArchive:     "输出容器：ZIP (.cbz) 或未压缩的 TAR (.cbt)",
+		LblCompression: "压缩：",
+		TipZipLevel:    "ZIP 压缩：存储将其禁用，1 最快，9 最小",
+		TglCombine:     " 合并为单个文件",
+		TipCombine:     "将所有列出的文件合并为一个存档",
+		LblOutFile:     "输出文件：",
+		TipOutFile:     "合并文件名（默认：第一个输入 + -combined）",
+
+		LblFormat:      "格式：",
+		TipFormat:      "转换页面的输出图像格式",
+		LblSize:        "大小：",
+		CueWidth:       "宽度",
+		CueHeight:      "高度",
+		TipWidthHeight: "如果未设置宽度或高度，则保留图像的纵横比",
+		TglFit:         " 最佳适应",
+		TipFit:         "最佳适应所需的宽度和高度",
+		TglNoUpscale:   " 不放大",
+		TipNoUpscale:   "不放大已经小于请求大小的图像",
+		LblFilter:      "缩放滤镜：",
+		LblQuality:     "质量：",
+		TipQuality:     "质量影响 JPEG、WEBP、AVIF 和 JXL",
+		LblEffort:      "强度：",
+		TipEffort:      "编码器速度/强度（WEBP、AVIF、JXL）",
+		TglLossless:    " 无损",
+		TipLossless:    "无损压缩（WEBP、AVIF、JXL），忽略质量",
+		TglGrayscale:   " 灰度",
+		TipGrayscale:   "将图像转换为灰度（单色）",
+
+		LblBrightness: "亮度：",
+		TipBrightness: "调整图像的亮度",
+		LblContrast:   "对比度：",
+		TipContrast:   "调整图像的对比度",
+		LblRotate:     "旋转：",
+		TipRotate:     "按给定角度（度）顺时针旋转每一页",
+
+		EffortMethod:  "方法",
+		EffortSpeed:   "速度",
+		EffortEffort:  "强度",
+		TipEffortWebp: "WEBP 方法，越高越好/越慢（0-6，默认 4）",
+		TipEffortAvif: "AVIF 速度，越高越快/越差（0-10，默认 10）",
+		TipEffortJxl:  "JXL 强度，越高越好/越慢（1-10，默认 7）",
+
+		BtnAddFiles:  "添加文件(&F)...",
+		BtnAddDir:    "添加目录(&D)...",
+		BtnRemove:    "移除",
+		BtnRemoveAll: "全部移除",
+		BtnThumbnail: "缩略图",
+		BtnCover:     "封面",
+		BtnConvert:   "转换(&C)",
+		BtnCancel:    "取消",
+		TipCancel:    "取消正在运行的操作（或按 Esc）",
+		BtnReset:     "重置",
+		TipReset:     "将所有设置恢复为默认值",
+		BtnSave:      "保存",
+		TipSave:      "将当前设置保存到配置文件",
+		BtnCommand:   "命令",
+		TipCommand:   "显示等效的命令行",
+		LblProfile:   "配置文件：",
+		TipProfile:   "选择设置配置文件",
+
+		TipThumbnail: "提取封面缩略图",
+		TipCover:     "提取封面",
+		TipConvert:   "将文件转换为所选格式",
+
+		StatusNeedFilesAndDir: "添加文件并设置输出目录",
+		StatusNeedFiles:       "添加文件",
+		StatusNeedOutDir:      "设置输出目录",
+		StatusFileOf:          "文件 %d / %d",
+
+		FilterNearest:  "NearestNeighbor 是最快的重采样滤镜，无抗锯齿",
+		FilterBox:      "Box 滤镜（像素平均）",
+		FilterLinear:   "Linear 是双线性滤镜，平滑且相当快",
+		FilterMitchell: "MitchellNetravali 是平滑的双三次滤镜",
+		FilterCatmull:  "CatmullRom 是锐利的双三次滤镜",
+		FilterGaussian: "Gaussian 是使用高斯函数的模糊滤镜，适用于降噪",
+		FilterLanczos:  "Lanczos 是高质量的重采样滤镜，比三次滤镜慢",
+
+		DlgAddFiles:    "添加文件",
+		DlgAddDir:      "添加目录",
+		DlgOutputDir:   "输出目录",
+		DlgOutputFile:  "输出文件",
+		DlgCommandLine: "命令行",
+		DlgSaveProfile: "保存配置文件",
+
+		ParamName:           "名称：%s\n",
+		MsgInvalidNameTitle: "无效名称",
+		MsgInvalidNameBody:  "配置文件名称不能为空，也不能包含 '.' 或 ';'。",
+
+		NoPreview: "无预览",
+	})
+}

cmd/cbconvert-gui/main.go

@@ -2,26 +2,22 @@ package main
 
 import (
 	"bytes"
-	"context"
 	_ "embed"
-	"errors"
 	"flag"
 	"fmt"
-	"image/gif"
 	"image/png"
-	"net/url"
 	"os"
 	"path/filepath"
 	"runtime/debug"
-	"slices"
-	"strconv"
 	"strings"
 
 	"github.com/gen2brain/cbconvert"
+	"github.com/gen2brain/cbconvert/cmd/cbconvert-gui/i18n"
 	"github.com/gen2brain/iup-go/iup"
 )
 
 //go:generate rsrc --ico dist/windows/icon.ico --arch amd64 -o main_windows_amd64.syso
+//go:generate rsrc --ico dist/windows/icon.ico --arch arm64 -o main_windows_arm64.syso
 
 //go:embed assets/logo.png
 var appLogo []byte
@@ -34,6 +30,15 @@ var appVersion string
 var (
 	index = -1
 	files []cbconvert.File
+
+	config iup.Ihandle
+
+	activeConv *cbconvert.Converter
+	busy       bool
+
+	previewPage int    // 0-based page shown in the preview
+	previewPath string // path of the file whose page range is loaded
+	hasCover    bool   // whether a cover image is loaded for the preview canvas
 )
 
 func init() {
@@ -69,8 +74,16 @@ func main() {
 	iup.Open()
 	defer iup.Close()
 
-	iup.SetGlobal("UTF8MODE", "YES")
+	iup.SetGlobal("APPNAME", "cbconvert")
-	iup.SetGlobal("UTF8MODE_FILE", "YES")
+	iup.SetGlobal("APPID", "io.github.gen2brain.cbconvert")
+
+	iup.SetGlobal("AUTODARKMODE", "YES")
+	iup.SetGlobal("GSKRENDERER", "cairo")
+
+	i18n.Init()
+
+	config = iup.Config()
+	iup.ConfigLoad(config)
 
 	img, _ := png.Decode(bytes.NewReader(appLogo))
 	iup.ImageFromImage(img).SetHandle("logo")
@@ -86,17 +99,17 @@ func main() {
 		return iup.DEFAULT
 	}))
 
-	dlg.SetCallback("RESIZE_CB", iup.ResizeFunc(func(ih iup.Ihandle, width, height int) int {
+	dlg.SetCallback("THEMECHANGED_CB", iup.ThemeChangedFunc(func(ih iup.Ihandle, darkMode int) int {
-		iup.GetHandle("Preview").SetAttribute("IMAGE", "logo")
+		t := iup.GetHandle("Table")
-		iup.Refresh(ih)
+		tableRowColors(t, darkMode == 1)
-
+		t.SetAttribute("REDRAW", "YES")
-		previewPost()
+		iup.Update(iup.GetHandle("Preview"))
 
 		return iup.DEFAULT
 	}))
 
 	iup.Map(dlg)
-	setActive()
+	profilesInit()
 
 	iup.ShowXY(dlg, iup.CENTER, iup.CENTER)
 	iup.MainLoop()
@@ -123,90 +136,6 @@ func parseFlags() {
 	}
 }
 
-func options() cbconvert.Options {
-	var opts cbconvert.Options
-	opts.Recursive = iup.GetHandle("Recursive").GetAttribute("VALUE") == "ON"
-	opts.NoRGB = iup.GetHandle("NoRGB").GetAttribute("VALUE") == "ON"
-	opts.NoCover = iup.GetHandle("NoCover").GetAttribute("VALUE") == "ON"
-	opts.Size = iup.GetHandle("Size").GetInt("VALUE")
-	opts.OutDir = iup.GetHandle("OutDir").GetAttribute("VALUE")
-	opts.Suffix = iup.GetHandle("Suffix").GetAttribute("VALUE")
-	opts.NoConvert = iup.GetHandle("NoConvert").GetAttribute("VALUE") == "ON"
-	opts.NoNonImage = iup.GetHandle("NoNonImage").GetAttribute("VALUE") == "ON"
-	opts.Archive = strings.ToLower(iup.GetHandle("Archive").GetAttribute("VALUESTRING"))
-	opts.Format = strings.ToLower(iup.GetHandle("Format").GetAttribute("VALUESTRING"))
-	opts.Width = iup.GetHandle("Width").GetInt("VALUE")
-	opts.Height = iup.GetHandle("Height").GetInt("VALUE")
-	opts.Fit = iup.GetHandle("Fit").GetAttribute("VALUE") == "ON"
-	opts.Filter = iup.GetHandle("Filter").GetInt("VALUE") - 1
-	opts.Quality = iup.GetHandle("Quality").GetInt("VALUE")
-	opts.Grayscale = iup.GetHandle("Grayscale").GetAttribute("VALUE") == "ON"
-	opts.Brightness = iup.GetHandle("Brightness").GetInt("VALUE")
-	opts.Contrast = iup.GetHandle("Contrast").GetInt("VALUE")
-	opts.Rotate = iup.GetHandle("Rotate").GetInt("VALUESTRING")
-
-	return opts
-}
-
-func setActive() {
-	opts := options()
-	count := iup.GetHandle("List").GetInt("COUNT")
-
-	if count == 0 {
-		iup.GetHandle("Remove").SetAttribute("ACTIVE", "NO")
-		iup.GetHandle("RemoveAll").SetAttribute("ACTIVE", "NO")
-
-		iup.GetHandle("Preview").SetAttribute("IMAGE", "logo")
-		iup.GetHandle("PreviewInfo").SetAttribute("TITLE", "")
-	} else {
-		if index != -1 {
-			iup.GetHandle("Remove").SetAttribute("ACTIVE", "YES")
-		}
-		iup.GetHandle("RemoveAll").SetAttribute("ACTIVE", "YES")
-	}
-
-	if opts.OutDir == "" {
-		iup.GetHandle("Thumbnail").SetAttributes(`ACTIVE=NO`)
-		iup.GetHandle("Cover").SetAttributes(`ACTIVE=NO`)
-		iup.GetHandle("Convert").SetAttributes(`ACTIVE=NO`)
-		if count > 0 {
-			iup.GetHandle("Thumbnail").SetAttributes(`ACTIVE=NO, TIP="Set Output Directory"`)
-			iup.GetHandle("Cover").SetAttributes(`ACTIVE=NO, TIP="Set Output Directory"`)
-			iup.GetHandle("Convert").SetAttributes(`ACTIVE=NO, TIP="Set Output Directory"`)
-		}
-	} else {
-		if count > 0 {
-			iup.GetHandle("Thumbnail").SetAttributes(`ACTIVE=YES, TIP=""`)
-			iup.GetHandle("Cover").SetAttributes(`ACTIVE=YES, TIP=""`)
-			iup.GetHandle("Convert").SetAttributes(`ACTIVE=YES, TIP=""`)
-		} else {
-			iup.GetHandle("Thumbnail").SetAttributes(`ACTIVE=NO`)
-			iup.GetHandle("Cover").SetAttributes(`ACTIVE=NO`)
-			iup.GetHandle("Convert").SetAttributes(`ACTIVE=NO`)
-		}
-	}
-
-	if opts.NoConvert {
-		iup.GetHandle("VboxImage").SetAttribute("ACTIVE", "NO")
-		iup.GetHandle("VboxTransform").SetAttribute("ACTIVE", "NO")
-	} else {
-		iup.GetHandle("VboxImage").SetAttribute("ACTIVE", "YES")
-		iup.GetHandle("VboxTransform").SetAttribute("ACTIVE", "YES")
-	}
-
-	if (opts.Format == "jpeg" || opts.Format == "webp" || opts.Format == "avif" || opts.Format == "jxl") && !opts.NoConvert {
-		iup.GetHandle("VboxQuality").SetAttribute("ACTIVE", "YES")
-	} else {
-		iup.GetHandle("VboxQuality").SetAttribute("ACTIVE", "NO")
-	}
-
-	if opts.Width != 0 && opts.Height != 0 && !opts.NoConvert {
-		iup.GetHandle("Fit").SetAttribute("ACTIVE", "YES")
-	} else {
-		iup.GetHandle("Fit").SetAttribute("ACTIVE", "NO")
-	}
-}
-
 func layout() iup.Ihandle {
 	return iup.Vbox(
 		iup.Hbox(
@@ -224,736 +153,3 @@ func layout() iup.Ihandle {
 		status(),
 	)
 }
-
-func list() iup.Ihandle {
-	return iup.Vbox(
-		iup.List().SetAttributes("EXPAND=YES, VISIBLECOLUMNS=16, VISIBLELINES=5").SetHandle("List").
-			SetCallback("ACTION", iup.ListActionFunc(func(ih iup.Ihandle, text string, item int, state int) int {
-				if state == 1 {
-					index = item - 1
-					setActive()
-					previewPost()
-				}
-
-				return iup.DEFAULT
-			})).
-			SetCallback("DROPFILES_CB", iup.DropFilesFunc(func(ih iup.Ihandle, fileName string, num, x, y int) int {
-				dec, err := url.QueryUnescape(fileName)
-				if err != nil {
-					iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-					fmt.Println(err)
-
-					return iup.DEFAULT
-				}
-
-				conv := cbconvert.New(options())
-
-				fs, err := conv.Files([]string{dec})
-				if err != nil {
-					iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-					fmt.Println(err)
-
-					return iup.DEFAULT
-				}
-
-				for _, file := range fs {
-					iup.SetAttribute(iup.GetHandle("List"), "APPENDITEM", fmt.Sprintf("%s (%s)", file.Name, file.SizeHuman))
-					files = append(files, file)
-				}
-
-				setActive()
-
-				return iup.DEFAULT
-			})),
-	)
-}
-
-func previewPost() {
-	if index == -1 || len(files) == 0 {
-		return
-	}
-
-	width, height := previewSize()
-	iup.GetHandle("Loading").SetAttributes("VISIBLE=YES, START=YES")
-	if strings.ToLower(iup.GetGlobal("DRIVER")) == "motif" {
-		iup.GetHandle("Preview").SetAttribute("IMAGE", "")
-	}
-
-	opts := options()
-
-	go func(opts cbconvert.Options) {
-		conv := cbconvert.New(opts)
-
-		var s string
-		file := files[index]
-
-		img, err := conv.Preview(file.Path, file.Stat, width, height)
-		if err != nil {
-			s = err.Error()
-			fmt.Println(err)
-		}
-
-		iup.PostMessage(iup.GetHandle("Preview"), s, 0, img)
-	}(opts)
-}
-
-func previewSize() (int, int) {
-	var width, height int
-	sp := strings.Split(iup.GetHandle("Preview").GetAttribute("RASTERSIZE"), "x")
-	if len(sp) == 2 {
-		width, _ = strconv.Atoi(sp[0])
-		height, _ = strconv.Atoi(sp[1])
-	}
-
-	return width, height
-}
-
-func preview() iup.Ihandle {
-	return iup.Frame(
-		iup.Vbox(
-			iup.Label("").SetAttributes("EXPAND=YES, ALIGNMENT=ACENTER, MINSIZE=400x, IMAGE=cover").SetHandle("Preview").
-				SetCallback("POSTMESSAGE_CB", iup.PostMessageFunc(func(ih iup.Ihandle, s string, i int, p any) int {
-					img := p.(cbconvert.Image)
-
-					iup.GetHandle("Loading").SetAttributes("VISIBLE=NO, STOP=YES")
-
-					if img.Image != nil && len(s) == 0 {
-						iup.Destroy(iup.GetHandle("cover"))
-						iup.ImageFromImage(img.Image).SetHandle("cover")
-
-						ih.SetAttribute("IMAGE", "cover")
-						iup.GetHandle("PreviewInfo").SetAttribute("TITLE", fmt.Sprintf("%s (%dx%d)", img.SizeHuman, img.Width, img.Height))
-					} else {
-						ih.SetAttribute("IMAGE", "logo")
-						iup.GetHandle("PreviewInfo").SetAttribute("TITLE", "")
-
-						sp := strings.Split(s, ": ")
-						if len(sp) > 1 {
-							iup.MessageError(ih, fmt.Sprintf("%s\n\n%s", sp[0], strings.Join(sp[1:], ": ")))
-						}
-					}
-
-					return iup.DEFAULT
-				})),
-			iup.Label("").SetAttributes("EXPAND=HORIZONTAL, ALIGNMENT=ACENTER").SetHandle("PreviewInfo"),
-		),
-	)
-}
-
-func tabs() iup.Ihandle {
-	vboxInput := iup.Vbox(
-		iup.Toggle(" Recurse SubDirectories").SetHandle("Recursive").
-			SetAttributes(`TIP="Process subdirectories recursively"`),
-		iup.Toggle(" Only Grayscale Images").SetHandle("NoRGB").
-			SetAttributes(`TIP="Do not convert images that have RGB colorspace"`),
-		iup.Toggle(" Exclude Cover").SetHandle("NoCover").
-			SetAttributes(`TIP="Do not convert the cover image"`),
-		iup.Toggle(" Remove Non-Image Files from the Archive").SetHandle("NoNonImage").
-			SetAttribute("TIP", "Remove .nfo, .xml, .txt files from the archive"),
-		iup.Toggle(" Do not Transform or Convert Images").SetHandle("NoConvert").
-			SetAttributes(`TIP="Copy images from archive or directory without modifications"`).
-			SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-				setActive()
-
-				return iup.DEFAULT
-			})),
-		iup.Vbox(
-			iup.Label("Minimum Size (MiB):"),
-			iup.Text().SetAttributes(`SPIN=YES, SPINMAX=2048, VISIBLECOLUMNS=4, MASK="/d*"`).SetHandle("Size").
-				SetAttributes(`TIP="Process only files larger than minimum size"`),
-		),
-		iup.Space().SetAttributes("EXPAND=HORIZONTAL"),
-	).SetHandle("VboxInput").SetAttributes("MARGIN=5x5, GAP=5")
-
-	vboxOutput := iup.Vbox(
-		iup.Vbox(
-			iup.Label("Output Directory:"),
-			iup.Text().SetAttributes("VISIBLECOLUMNS=16, MINSIZE=100x").SetHandle("OutDir").
-				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-					setActive()
-
-					return iup.DEFAULT
-				})),
-			iup.Space().SetAttribute("SIZE", "5x0"),
-			iup.Button("Browse...").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
-				SetCallback("ACTION", iup.ActionFunc(onOutputDirectory)),
-		),
-		iup.Vbox(
-			iup.Label("Add Suffix to Output File:"),
-			iup.Text().SetAttributes("VISIBLECOLUMNS=16, MINSIZE=100x").SetHandle("Suffix").
-				SetAttribute("TIP", "Add suffix to filename, i.e. filename_suffix.cbz"),
-		),
-		iup.Vbox(
-			iup.Label("Archive Format:"),
-			iup.List().SetAttributes(map[string]string{
-				"DROPDOWN": "YES",
-				"VALUE":    "1",
-				"1":        "ZIP",
-				"2":        "TAR",
-			}).SetHandle("Archive"),
-		),
-	).SetHandle("VboxOutput").SetAttributes("MARGIN=5x5, GAP=5")
-
-	vboxImage := iup.Vbox(
-		iup.Vbox(
-			iup.Label("Format:"),
-			iup.List().SetAttributes(map[string]string{
-				"DROPDOWN": "YES",
-				"VALUE":    "1",
-				"1":        "JPEG",
-				"2":        "PNG",
-				"3":        "TIFF",
-				"4":        "BMP",
-				"5":        "WEBP",
-				"6":        "AVIF",
-				"7":        "JXL",
-			}).SetHandle("Format").
-				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-					setActive()
-					previewPost()
-
-					return iup.DEFAULT
-				})),
-		),
-		iup.Vbox(
-			iup.Label("Size:"),
-			iup.Hbox(
-				iup.Text().SetAttributes(`CUEBANNER=" width", VISIBLECOLUMNS=4, MASK="/d*"`).SetHandle("Width").
-					SetAttribute("TIP", "If one of, width or height is not set, the image aspect ratio is preserved").
-					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-						setActive()
-						ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
-
-						return iup.DEFAULT
-					})).
-					SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
-						if ih.GetAttribute("MYVALUE") != "" {
-							previewPost()
-						}
-						ih.SetAttribute("MYVALUE", "")
-
-						return iup.DEFAULT
-					})),
-				iup.Label("x"),
-				iup.Text().SetAttributes(`CUEBANNER=" height", VISIBLECOLUMNS=4, MASK="/d*"`).SetHandle("Height").
-					SetAttribute("TIP", "If one of, width or height is not set, the image aspect ratio is preserved").
-					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-						setActive()
-						ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
-
-						return iup.DEFAULT
-					})).
-					SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
-						if ih.GetAttribute("MYVALUE") != "" {
-							previewPost()
-						}
-						ih.SetAttribute("MYVALUE", "")
-
-						return iup.DEFAULT
-					})),
-			).SetAttributes("ALIGNMENT=ACENTER, MARGIN=0"),
-		),
-		iup.Vbox(
-			iup.Toggle(" Best Fit").SetHandle("Fit").
-				SetAttributes(`TIP="Best fit for required width and height"`),
-		),
-		iup.Vbox(
-			iup.Label("Resize Filter:"),
-			iup.List().SetAttributes(map[string]string{
-				"DROPDOWN": "YES",
-				"VALUE":    "3",
-				"TIP":      "Linear is the bilinear filter, smooth and reasonably fast",
-				"1":        "NearestNeighbor",
-				"2":        "Box",
-				"3":        "Linear",
-				"4":        "MitchellNetravali",
-				"5":        "CatmullRom",
-				"6":        "Gaussian",
-				"7":        "Lanczos",
-			}).SetHandle("Filter").SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(onFilterChanged)),
-		),
-		iup.Vbox(
-			iup.Hbox(
-				iup.Label("Quality: "),
-				iup.Label("75").SetHandle("LabelQuality"),
-			).SetAttributes("MARGIN=0"),
-			iup.Val("").SetAttributes(`MIN=0, MAX=100, VALUE=75, SHOWTICKS=10`).SetHandle("Quality").
-				SetAttribute("TIP", "Quality affects JPEG, WEBP, AVIF and JXL").
-				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-					iup.GetHandle("LabelQuality").SetAttribute("TITLE", ih.GetInt("VALUE"))
-					ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
-
-					return iup.DEFAULT
-				})).
-				SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
-					if ih.GetAttribute("MYVALUE") != "" {
-						previewPost()
-					}
-					ih.SetAttribute("MYVALUE", "")
-
-					return iup.DEFAULT
-				})),
-		).SetHandle("VboxQuality"),
-		iup.Vbox(
-			iup.Toggle(" Grayscale").SetHandle("Grayscale").
-				SetAttributes(`TIP="Convert images to grayscale (monochromatic)"`).
-				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-					previewPost()
-
-					return iup.DEFAULT
-				})),
-		),
-	).SetHandle("VboxImage").SetAttributes("MARGIN=5x5, GAP=5")
-
-	vboxTransform := iup.Vbox(
-		iup.Vbox(
-			iup.Hbox(
-				iup.Label("Brightness: "),
-				iup.Label("0").SetHandle("LabelBrightness"),
-			).SetAttributes("ALIGNMENT=ACENTER, MARGIN=0"),
-			iup.Val("").SetAttributes(`MIN=-100, MAX=100, VALUE=0, SHOWTICKS=10`).SetHandle("Brightness").
-				SetAttributes(`TIP="Adjust the brightness of the images"`).
-				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-					iup.GetHandle("LabelBrightness").SetAttribute("TITLE", iup.GetHandle("Brightness").GetInt("VALUE"))
-					ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
-
-					return iup.DEFAULT
-				})).
-				SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
-					if ih.GetAttribute("MYVALUE") != "" {
-						previewPost()
-					}
-					ih.SetAttribute("MYVALUE", "")
-
-					return iup.DEFAULT
-				})),
-		),
-		iup.Vbox(
-			iup.Hbox(
-				iup.Label("Contrast: "),
-				iup.Label("0").SetHandle("LabelContrast"),
-			).SetAttributes("ALIGNMENT=ACENTER, MARGIN=0"),
-			iup.Val("").SetAttributes(`MIN=-100, MAX=100, VALUE=0, SHOWTICKS=10`).SetHandle("Contrast").
-				SetAttributes(`TIP="Adjust the contrast of the images"`).
-				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-					iup.GetHandle("LabelContrast").SetAttribute("TITLE", iup.GetHandle("Contrast").GetInt("VALUE"))
-					ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
-
-					return iup.DEFAULT
-				})).
-				SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
-					if ih.GetAttribute("MYVALUE") != "" {
-						previewPost()
-					}
-					ih.SetAttribute("MYVALUE", "")
-
-					return iup.DEFAULT
-				})),
-		),
-		iup.Vbox(
-			iup.Label("Rotate:"),
-			iup.List().SetAttributes(map[string]string{
-				"DROPDOWN": "YES",
-				"VALUE":    "1",
-				"1":        "0",
-				"2":        "90",
-				"3":        "180",
-				"4":        "270",
-			}).SetHandle("Rotate").
-				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
-					previewPost()
-
-					return iup.DEFAULT
-				})),
-		),
-	).SetHandle("VboxTransform").SetAttributes("MARGIN=5x5, GAP=5")
-
-	return iup.Tabs(
-		vboxInput.SetAttributes("TABTITLE=Input"),
-		vboxOutput.SetAttributes("TABTITLE=Output"),
-		vboxImage.SetAttributes("TABTITLE=Image"),
-		vboxTransform.SetAttributes("TABTITLE=Transform"),
-	).SetHandle("Tabs").SetAttributes("MINSIZE=320x400, EXPAND=HORIZONTAL, MULTILINE=YES")
-}
-
-func buttons() iup.Ihandle {
-	return iup.Vbox(
-		iup.Frame(
-			iup.Vbox(
-				iup.Button("Add &Files...").SetHandle("AddFiles").SetAttributes("EXPAND=HORIZONTAL, PADDING=DEFAULTBUTTONPADDING").
-					SetCallback("ACTION", iup.ActionFunc(onAddFiles)),
-				iup.Button("Add &Dir...").SetHandle("AddDir").SetAttributes("EXPAND=HORIZONTAL, PADDING=DEFAULTBUTTONPADDING").
-					SetCallback("ACTION", iup.ActionFunc(onAddDir)),
-				iup.Button("Remove").SetHandle("Remove").SetAttributes("EXPAND=HORIZONTAL, PADDING=DEFAULTBUTTONPADDING").
-					SetCallback("ACTION", iup.ActionFunc(onRemove)),
-				iup.Button("Remove All").SetHandle("RemoveAll").SetAttributes("EXPAND=HORIZONTAL, PADDING=DEFAULTBUTTONPADDING").
-					SetCallback("ACTION", iup.ActionFunc(onRemoveAll)),
-			).SetAttributes("NGAP=5"),
-		),
-		iup.Frame(
-			iup.Vbox(
-				iup.Button("Thumbnail").SetHandle("Thumbnail").SetAttributes("EXPAND=HORIZONTAL, PADDING=DEFAULTBUTTONPADDING").
-					SetCallback("ACTION", iup.ActionFunc(onThumbnail)),
-				iup.Button("Cover").SetHandle("Cover").SetAttributes("EXPAND=HORIZONTAL, PADDING=DEFAULTBUTTONPADDING").
-					SetCallback("ACTION", iup.ActionFunc(onCover)),
-			).SetAttributes("NGAP=5"),
-		),
-		iup.Frame(
-			iup.Vbox(
-				iup.Button("&Convert").SetHandle("Convert").SetAttributes("EXPAND=HORIZONTAL, PADDING=DEFAULTBUTTONPADDING").
-					SetCallback("ACTION", iup.ActionFunc(onConvert)),
-			),
-		),
-	).SetHandle("Buttons").SetAttributes("ALIGNMENT=ACENTER, NGAP=10")
-}
-
-func status() iup.Ihandle {
-	return iup.Hbox(
-		loading(),
-		iup.Fill(),
-		iup.Label("File 1 of 1").SetHandle("LabelStatus1").SetAttributes("VISIBLE=NO"),
-		iup.Space().SetAttribute("SIZE", "5x0"),
-		iup.Label("(000/000)").SetHandle("LabelStatus2").SetAttributes("VISIBLE=NO"),
-		iup.Space().SetAttribute("SIZE", "5x0"),
-		iup.ProgressBar().SetAttributes("RASTERSIZE=200x15, VISIBLE=NO").SetHandle("ProgressBar").
-			SetCallback("POSTMESSAGE_CB", iup.PostMessageFunc(func(ih iup.Ihandle, s string, i int, p any) int {
-				switch s {
-				case "convert":
-					conv := p.(*cbconvert.Converter)
-					ih.SetAttributes("VALUE=0, VISIBLE=YES")
-					ih.SetAttribute("MAX", conv.Ncontents)
-
-					iup.GetHandle("List").SetAttributes("ACTIVE=NO")
-					iup.GetHandle("Tabs").SetAttributes("ACTIVE=NO")
-					iup.GetHandle("Buttons").SetAttributes("ACTIVE=NO")
-
-					iup.GetHandle("LabelStatus1").SetAttribute("TITLE", fmt.Sprintf("File %d of %d", conv.CurrFile, conv.Nfiles))
-					iup.GetHandle("LabelStatus1").SetAttributes("VISIBLE=YES")
-					iup.GetHandle("LabelStatus2").SetAttributes("VISIBLE=YES")
-
-					iup.Refresh(iup.GetHandle("StatusBar"))
-				case "start":
-					conv := p.(*cbconvert.Converter)
-					ih.SetAttributes("VALUE=0, VISIBLE=YES")
-					ih.SetAttribute("MAX", conv.Nfiles)
-
-					iup.GetHandle("List").SetAttributes("ACTIVE=NO")
-					iup.GetHandle("Tabs").SetAttributes("ACTIVE=NO")
-					iup.GetHandle("Buttons").SetAttributes("ACTIVE=NO")
-
-					iup.GetHandle("LabelStatus2").SetAttributes("VISIBLE=YES")
-				case "progress":
-					conv := p.(*cbconvert.Converter)
-					ih.SetAttribute("VALUE", conv.CurrContent)
-					iup.GetHandle("LabelStatus2").SetAttribute("TITLE", fmt.Sprintf("(%03d/%03d)", conv.CurrContent, conv.Ncontents))
-
-					iup.Refresh(iup.GetHandle("StatusBar"))
-				case "progress2":
-					conv := p.(*cbconvert.Converter)
-					ih.SetAttribute("VALUE", conv.CurrFile)
-					iup.GetHandle("LabelStatus2").SetAttribute("TITLE", fmt.Sprintf("(%03d/%03d)", conv.CurrFile, conv.Nfiles))
-
-					iup.Refresh(iup.GetHandle("StatusBar"))
-				case "finish":
-					iup.GetHandle("List").SetAttributes("ACTIVE=YES")
-					iup.GetHandle("Tabs").SetAttributes("ACTIVE=YES")
-					iup.GetHandle("Buttons").SetAttributes("ACTIVE=YES")
-
-					iup.GetHandle("LabelStatus1").SetAttributes(`TITLE="", VISIBLE=NO`)
-					iup.GetHandle("LabelStatus2").SetAttributes(`TITLE="", VISIBLE=NO`)
-					ih.SetAttributes("VALUE=0, VISIBLE=NO")
-
-					iup.Refresh(iup.GetHandle("StatusBar"))
-
-					iup.GetHandle("dlg").SetCallback("K_ANY", nil)
-					iup.GetHandle("dlg").SetCallback("CLOSE_CB", nil)
-				}
-
-				return iup.DEFAULT
-			})),
-		iup.Space().SetAttribute("SIZE", "5x0"),
-	).SetAttributes("ALIGNMENT=ACENTER, NMARGIN=5x5").SetHandle("StatusBar")
-}
-
-func loading() iup.Ihandle {
-	img, _ := gif.DecodeAll(bytes.NewReader(appLoading))
-	animation := iup.User()
-
-	for idx, i := range img.Image {
-		name := fmt.Sprintf("Loading%d", idx)
-		iup.ImageFromImage(i).SetHandle(name)
-		iup.Append(animation, iup.GetHandle(name))
-	}
-
-	return iup.AnimatedLabel(animation).SetAttributes("VISIBLE=NO").SetHandle("Loading")
-}
-
-func onAddFiles(ih iup.Ihandle) int {
-	args, err := fileDlg("Add Files", true, false)
-	if err != nil {
-		iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-		fmt.Println(err)
-
-		return iup.DEFAULT
-	}
-
-	if len(args) > 0 {
-		conv := cbconvert.New(options())
-
-		fs, err := conv.Files(args)
-		if err != nil {
-			iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-			fmt.Println(err)
-
-			return iup.DEFAULT
-		}
-
-		for _, file := range fs {
-			iup.SetAttribute(iup.GetHandle("List"), "APPENDITEM", fmt.Sprintf("%s (%s)", file.Name, file.SizeHuman))
-			files = append(files, file)
-		}
-
-		setActive()
-	}
-
-	return iup.DEFAULT
-}
-
-func onAddDir(ih iup.Ihandle) int {
-	args, err := fileDlg("Add Directory", false, true)
-	if err != nil {
-		iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-		fmt.Println(err)
-
-		return iup.DEFAULT
-	}
-
-	if len(args) > 0 {
-		conv := cbconvert.New(options())
-
-		fs, err := conv.Files(args)
-		if err != nil {
-			iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-			fmt.Println(err)
-
-			return iup.DEFAULT
-		}
-
-		for _, file := range fs {
-			iup.SetAttribute(iup.GetHandle("List"), "APPENDITEM", fmt.Sprintf("%s (%s)", file.Name, file.SizeHuman))
-			files = append(files, file)
-		}
-
-		setActive()
-	}
-
-	return iup.DEFAULT
-}
-
-func onRemove(ih iup.Ihandle) int {
-	if index == -1 || len(files) == 0 {
-		return iup.IGNORE
-	}
-
-	if len(files) == 1 {
-		files = make([]cbconvert.File, 0)
-	} else {
-		files = slices.Delete(files, index, index)
-	}
-
-	iup.GetHandle("List").SetAttribute("REMOVEITEM", iup.GetHandle("List").GetAttribute("VALUE"))
-	setActive()
-
-	return iup.DEFAULT
-}
-
-func onRemoveAll(ih iup.Ihandle) int {
-	index = -1
-	files = make([]cbconvert.File, 0)
-
-	iup.GetHandle("List").SetAttribute("REMOVEITEM", "ALL")
-	setActive()
-
-	return iup.DEFAULT
-}
-
-func onThumbnail(ih iup.Ihandle) int {
-	conv := cbconvert.New(options())
-	conv.Nfiles = len(files)
-
-	conv.OnProgress = func() {
-		iup.PostMessage(iup.GetHandle("ProgressBar"), "progress2", 0, conv)
-	}
-
-	var canceled = false
-	conv.OnCancel = func() {
-		canceled = true
-	}
-
-	iup.GetHandle("dlg").SetCallback("K_ANY", iup.KAnyFunc(func(ih iup.Ihandle, c int) int {
-		if c == iup.K_ESC {
-			conv.Cancel()
-		}
-
-		return iup.DEFAULT
-	}))
-
-	iup.PostMessage(iup.GetHandle("ProgressBar"), "start", 0, conv)
-
-	go func(c *cbconvert.Converter) {
-		for _, file := range files {
-			if canceled {
-				break
-			}
-
-			if err := c.Thumbnail(file.Path, file.Stat); err != nil {
-				iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-				fmt.Println(err)
-
-				continue
-			}
-		}
-
-		iup.PostMessage(iup.GetHandle("ProgressBar"), "finish", 0, 0)
-	}(conv)
-
-	return iup.DEFAULT
-}
-
-func onCover(ih iup.Ihandle) int {
-	conv := cbconvert.New(options())
-	conv.Nfiles = len(files)
-
-	conv.OnProgress = func() {
-		iup.PostMessage(iup.GetHandle("ProgressBar"), "progress2", 0, conv)
-	}
-
-	var canceled = false
-	conv.OnCancel = func() {
-		canceled = true
-	}
-
-	iup.GetHandle("dlg").SetCallback("K_ANY", iup.KAnyFunc(func(ih iup.Ihandle, c int) int {
-		if c == iup.K_ESC {
-			conv.Cancel()
-		}
-
-		return iup.DEFAULT
-	}))
-
-	iup.PostMessage(iup.GetHandle("ProgressBar"), "start", 0, conv)
-
-	go func(c *cbconvert.Converter) {
-		for _, file := range files {
-			if canceled {
-				break
-			}
-
-			if err := c.Cover(file.Path, file.Stat); err != nil {
-				iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-				fmt.Println(err)
-
-				continue
-			}
-		}
-
-		iup.PostMessage(iup.GetHandle("ProgressBar"), "finish", 0, 0)
-	}(conv)
-
-	return iup.DEFAULT
-}
-
-func onConvert(ih iup.Ihandle) int {
-	conv := cbconvert.New(options())
-	conv.Nfiles = len(files)
-
-	conv.OnStart = func() {
-		iup.PostMessage(iup.GetHandle("ProgressBar"), "convert", 0, conv)
-	}
-
-	conv.OnProgress = func() {
-		iup.PostMessage(iup.GetHandle("ProgressBar"), "progress", 0, conv)
-	}
-
-	iup.GetHandle("dlg").SetCallback("K_ANY", iup.KAnyFunc(func(ih iup.Ihandle, c int) int {
-		if c == iup.K_ESC {
-			conv.Cancel()
-		}
-
-		return iup.DEFAULT
-	})).SetCallback("CLOSE_CB", iup.CloseFunc(func(ih iup.Ihandle) int {
-		if err := os.RemoveAll(conv.Workdir); err != nil {
-			fmt.Println(err)
-		}
-
-		return iup.DEFAULT
-	}))
-
-	go func(c *cbconvert.Converter) {
-		for _, file := range files {
-			if err := c.Convert(file.Path, file.Stat); err != nil {
-				if errors.Is(err, context.Canceled) {
-					if err := os.RemoveAll(c.Workdir); err != nil {
-						fmt.Println(err)
-					}
-
-					break
-				}
-
-				iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-				fmt.Println(err)
-
-				if err := os.RemoveAll(c.Workdir); err != nil {
-					fmt.Println(err)
-				}
-
-				continue
-			}
-		}
-
-		iup.PostMessage(iup.GetHandle("ProgressBar"), "finish", 0, 0)
-	}(conv)
-
-	return iup.DEFAULT
-}
-
-func onOutputDirectory(ih iup.Ihandle) int {
-	args, err := fileDlg("Output Directory", false, true)
-	if err != nil {
-		iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
-		fmt.Println(err)
-
-		return iup.DEFAULT
-	}
-
-	if len(args) == 1 {
-		iup.GetHandle("OutDir").SetAttribute("VALUE", args[0])
-	}
-
-	setActive()
-
-	return iup.DEFAULT
-}
-
-func onFilterChanged(ih iup.Ihandle) int {
-	switch ih.GetInt("VALUE") {
-	case 1:
-		ih.SetAttribute("TIP", "NearestNeighbor is the fastest resampling filter, no antialiasing")
-	case 2:
-		ih.SetAttribute("TIP", "Box filter (averaging pixels)")
-	case 3:
-		ih.SetAttribute("TIP", "Linear is the bilinear filter, smooth and reasonably fast")
-	case 4:
-		ih.SetAttribute("TIP", "MitchellNetravali is a smooth bicubic filter")
-	case 5:
-		ih.SetAttribute("TIP", "CatmullRom is a sharp bicubic filter")
-	case 6:
-		ih.SetAttribute("TIP", "Gaussian is a blurring filter that uses gaussian function, useful for noise removal")
-	case 7:
-		ih.SetAttribute("TIP", "Lanczos is a high-quality resampling filter, it's slower than cubic filters")
-	}
-
-	previewPost()
-
-	return iup.DEFAULT
-}

cmd/cbconvert-gui/main_filedlg.go

@@ -1,65 +0,0 @@
-//go:build !portal
-
-package main
-
-import (
-	"path/filepath"
-	"strings"
-
-	"github.com/gen2brain/iup-go/iup"
-)
-
-func fileDlg(title string, multiple, directory bool) ([]string, error) {
-	ret := make([]string, 0)
-
-	dlg := iup.FileDlg()
-	defer dlg.Destroy()
-
-	if !directory {
-		mf := "YES"
-		if !multiple {
-			mf = "NO"
-		}
-
-		dlg.SetAttributes(map[string]string{
-			"DIALOGTYPE":    "OPEN",
-			"MULTIPLEFILES": mf,
-			"EXTFILTER":     "Comic Files|*.rar;*.zip;*.7z;*.tar;*.cbr;*.cbz;*.cb7;*.cbt;*.pdf;*.epub;*.mobi;*.docx;*.pptx|",
-			"FILTER":        "*.cb*", // for Motif
-			"TITLE":         title,
-		})
-	} else {
-		dlg.SetAttributes(map[string]string{
-			"DIALOGTYPE": "DIR",
-			"TITLE":      title,
-		})
-	}
-
-	iup.Popup(dlg, iup.CENTERPARENT, iup.CENTERPARENT)
-
-	if dlg.GetInt("STATUS") == 0 {
-		if !directory {
-			value := dlg.GetAttribute("VALUE")
-			sp := strings.Split(value, "|")
-
-			if strings.ToLower(iup.GetGlobal("DRIVER")) == "cocoa" {
-				for _, file := range sp {
-					ret = append(ret, file)
-				}
-			} else {
-				if len(sp) > 1 {
-					for _, file := range sp[1 : len(sp)-1] {
-						ret = append(ret, filepath.Join(sp[0], file))
-					}
-				} else {
-					ret = append(ret, value)
-				}
-			}
-		} else {
-			value := dlg.GetAttribute("VALUE")
-			ret = append(ret, value)
-		}
-	}
-
-	return ret, nil
-}

cmd/cbconvert-gui/main_filedlg_portal.go

@@ -1,106 +0,0 @@
-//go:build portal
-
-package main
-
-import (
-	"net/url"
-
-	"github.com/godbus/dbus/v5"
-)
-
-func fileDlg(title string, multiple, directory bool) ([]string, error) {
-	ret := make([]string, 0)
-
-	conn, err := dbus.ConnectSessionBus()
-	if err != nil {
-		return ret, err
-	}
-	defer conn.Close()
-
-	dest := "org.freedesktop.portal.Desktop"
-	path := "/org/freedesktop/portal/desktop"
-	resp := "org.freedesktop.portal.Request.Response"
-
-	if err = conn.AddMatchSignal(
-		dbus.WithMatchInterface(dest),
-		dbus.WithMatchObjectPath(dbus.ObjectPath(path)),
-		dbus.WithMatchSender(conn.Names()[0]),
-	); err != nil {
-		return ret, err
-	}
-
-	c := make(chan *dbus.Signal, 10)
-	conn.Signal(c)
-
-	type Item struct {
-		Index  uint32
-		Filter string
-	}
-
-	type Filter struct {
-		Title   string
-		Filters []Item
-	}
-
-	filters := []Filter{
-		{
-			"Comic Files",
-			[]Item{
-				Item{0, "*.rar"},
-				Item{0, "*.zip"},
-				Item{0, "*.7z"},
-				Item{0, "*.tar"},
-				Item{0, "*.cbr"},
-				Item{0, "*.cbz"},
-				Item{0, "*.cb7"},
-				Item{0, "*.cbt"},
-				Item{0, "*.pdf"},
-				Item{0, "*.epub"},
-				Item{0, "*.mobi"},
-				Item{0, "*.docx"},
-				Item{0, "*.pptx"},
-			},
-		},
-	}
-
-	opts := map[string]any{
-		"multiple":  multiple,
-		"directory": directory,
-	}
-
-	if !directory {
-		opts["filters"] = filters
-	}
-
-	obj := conn.Object(dest, dbus.ObjectPath(path))
-	call := obj.Call("org.freedesktop.portal.FileChooser.OpenFile", 0, "", title, opts)
-	if call.Err != nil {
-		return ret, call.Err
-	}
-
-	for v := range c {
-		if v.Name != resp {
-			continue
-		}
-
-		status := v.Body[0].(uint32)
-
-		if status == 0 {
-			m := v.Body[1].(map[string]dbus.Variant)
-			uris := m["uris"].Value().([]string)
-
-			for _, uri := range uris {
-				u, err := url.ParseRequestURI(uri)
-				if err != nil {
-					return ret, err
-				}
-
-				ret = append(ret, u.Path)
-			}
-		}
-
-		break
-	}
-
-	return ret, nil
-}

cmd/cbconvert-gui/options.go

@@ -0,0 +1,103 @@
+package main
+
+import (
+	"strconv"
+	"strings"
+
+	"github.com/gen2brain/cbconvert"
+	"github.com/gen2brain/cbconvert/cmd/cbconvert-gui/i18n"
+	"github.com/gen2brain/iup-go/iup"
+)
+
+func options() cbconvert.Options {
+	var opts cbconvert.Options
+	opts.Recursive = iup.GetHandle("Recursive").GetAttribute("VALUE") == "ON"
+	opts.NoRGB = iup.GetHandle("NoRGB").GetAttribute("VALUE") == "ON"
+	opts.NoCover = iup.GetHandle("NoCover").GetAttribute("VALUE") == "ON"
+	opts.Size = iup.GetHandle("Size").GetInt("VALUE")
+	opts.OutDir = iup.GetHandle("OutDir").GetAttribute("VALUE")
+	opts.Suffix = iup.GetHandle("Suffix").GetAttribute("VALUE")
+	opts.NoConvert = iup.GetHandle("NoConvert").GetAttribute("VALUE") == "ON"
+	opts.NoNonImage = iup.GetHandle("NoNonImage").GetAttribute("VALUE") == "ON"
+	opts.Archive = strings.ToLower(iup.GetHandle("Archive").GetAttribute("VALUESTRING"))
+	opts.ZipLevel = zipLevel(iup.GetHandle("ZipLevel").GetAttribute("VALUESTRING"))
+	opts.Format = strings.ToLower(iup.GetHandle("Format").GetAttribute("VALUESTRING"))
+	opts.Width = iup.GetHandle("Width").GetInt("VALUE")
+	opts.Height = iup.GetHandle("Height").GetInt("VALUE")
+	opts.DPI = dpiValue(iup.GetHandle("DPI").GetAttribute("VALUE"))
+	opts.Fit = iup.GetHandle("Fit").GetAttribute("VALUE") == "ON"
+	opts.NoUpscale = iup.GetHandle("NoUpscale").GetAttribute("VALUE") == "ON"
+	opts.Filter = iup.GetHandle("Filter").GetInt("VALUE") - 1
+	opts.Quality = iup.GetHandle("Quality").GetInt("VALUE")
+	switch opts.Format {
+	case "webp", "avif", "jxl":
+		opts.Effort = iup.GetHandle("Effort").GetInt("VALUE")
+	default:
+		opts.Effort = -1
+	}
+	opts.Lossless = iup.GetHandle("Lossless").GetAttribute("VALUE") == "ON"
+	opts.Combine = iup.GetHandle("Combine").GetAttribute("VALUE") == "ON"
+	if opts.Combine {
+		opts.OutFile = iup.GetHandle("OutFile").GetAttribute("VALUE")
+	}
+	opts.Grayscale = iup.GetHandle("Grayscale").GetAttribute("VALUE") == "ON"
+	opts.Brightness = iup.GetHandle("Brightness").GetInt("VALUE")
+	opts.Contrast = iup.GetHandle("Contrast").GetInt("VALUE")
+	opts.Rotate = iup.GetHandle("Rotate").GetInt("VALUESTRING")
+
+	return opts
+}
+
+// shellArg quotes a command-line argument that contains whitespace.
+func shellArg(s string) string {
+	if strings.ContainsAny(s, " \t") {
+		return `"` + strings.ReplaceAll(s, `"`, `\"`) + `"`
+	}
+
+	return s
+}
+
+func commandLine() string {
+	parts := append([]string{"cbconvert", "convert"}, options().Args()...)
+	for _, file := range files {
+		parts = append(parts, file.Path)
+	}
+
+	for i, p := range parts {
+		parts[i] = shellArg(p)
+	}
+
+	return strings.Join(parts, " ")
+}
+
+func onCommand(iup.Ihandle) int {
+	iup.GetText(i18n.Str(i18n.DlgCommandLine), commandLine(), -1)
+
+	return iup.DEFAULT
+}
+
+// zipLevel maps the compression dropdown selection to Options.ZipLevel.
+func zipLevel(value string) int {
+	switch value {
+	case "Default":
+		return -1
+	case "Store (none)":
+		return 0
+	default:
+		level, err := strconv.Atoi(value)
+		if err != nil {
+			return -1
+		}
+
+		return level
+	}
+}
+
+func dpiValue(value string) int {
+	dpi, err := strconv.Atoi(strings.TrimSpace(value))
+	if err != nil {
+		return 0
+	}
+
+	return dpi
+}

cmd/cbconvert-gui/settings.go

@@ -0,0 +1,252 @@
+package main
+
+import (
+	"fmt"
+	"slices"
+	"strconv"
+	"strings"
+
+	"github.com/gen2brain/cbconvert/cmd/cbconvert-gui/i18n"
+	"github.com/gen2brain/iup-go/iup"
+)
+
+const (
+	pathsGroup    = "Paths"
+	profilesGroup = "Profiles"
+
+	inputDirKey  = "InputDir"
+	outputDirKey = "OutputDir"
+)
+
+type settingKind int
+
+const (
+	kindBool settingKind = iota
+	kindInt
+	kindStr
+)
+
+type setting struct {
+	handle string
+	kind   settingKind
+	def    string
+}
+
+var settings = []setting{
+	{"Recursive", kindBool, "OFF"},
+	{"NoRGB", kindBool, "OFF"},
+	{"NoCover", kindBool, "OFF"},
+	{"NoConvert", kindBool, "OFF"},
+	{"NoNonImage", kindBool, "OFF"},
+	{"Combine", kindBool, "OFF"},
+	{"Fit", kindBool, "OFF"},
+	{"NoUpscale", kindBool, "OFF"},
+	{"Lossless", kindBool, "OFF"},
+	{"Grayscale", kindBool, "OFF"},
+	{"OutDir", kindStr, ""},
+	{"Suffix", kindStr, ""},
+	{"Width", kindStr, ""},
+	{"Height", kindStr, ""},
+	{"DPI", kindStr, "Default"},
+	{"Size", kindInt, "0"},
+	{"Quality", kindInt, "75"},
+	{"Effort", kindInt, "0"},
+	{"Brightness", kindInt, "0"},
+	{"Contrast", kindInt, "0"},
+	{"Format", kindInt, "1"},
+	{"Archive", kindInt, "1"},
+	{"ZipLevel", kindInt, "1"},
+	{"Filter", kindInt, "3"},
+	{"Rotate", kindInt, "1"},
+}
+
+func profileGroup(name string) string {
+	return "Profile:" + name
+}
+
+func profileNames() []string {
+	s := iup.ConfigGetVariableStr(config, profilesGroup, "Names")
+	if s == "" {
+		return nil
+	}
+
+	return strings.Split(s, ";")
+}
+
+func currentProfile() string {
+	return iup.ConfigGetVariableStrDef(config, profilesGroup, "Current", "Default")
+}
+
+func setStartDir(dlg iup.Ihandle, key string) {
+	if dir := iup.ConfigGetVariableStr(config, pathsGroup, key); dir != "" {
+		dlg.SetAttribute("DIRECTORY", dir)
+	}
+}
+
+func rememberDir(dlg iup.Ihandle, key string) {
+	dir := dlg.GetAttribute("DIRECTORY")
+	if dir == "" {
+		return
+	}
+
+	iup.ConfigSetVariableStr(config, pathsGroup, key, dir)
+	iup.ConfigSave(config)
+}
+
+func settingsSave(group string) {
+	for _, s := range settings {
+		h := iup.GetHandle(s.handle)
+		switch s.kind {
+		case kindBool:
+			v := 0
+			if h.GetAttribute("VALUE") == "ON" {
+				v = 1
+			}
+			iup.ConfigSetVariableInt(config, group, s.handle, v)
+		case kindInt:
+			iup.ConfigSetVariableInt(config, group, s.handle, h.GetInt("VALUE"))
+		case kindStr:
+			iup.ConfigSetVariableStr(config, group, s.handle, h.GetAttribute("VALUE"))
+		}
+	}
+
+	iup.ConfigSave(config)
+}
+
+// settingsApply sets every control from the given profile group, or from defaults when a group is empty.
+func settingsApply(group string) {
+	for _, s := range settings {
+		h := iup.GetHandle(s.handle)
+		switch s.kind {
+		case kindBool:
+			def := 0
+			if s.def == "ON" {
+				def = 1
+			}
+			v := def
+			if group != "" {
+				v = iup.ConfigGetVariableIntDef(config, group, s.handle, def)
+			}
+			if v != 0 {
+				h.SetAttribute("VALUE", "ON")
+			} else {
+				h.SetAttribute("VALUE", "OFF")
+			}
+		case kindInt:
+			def, _ := strconv.Atoi(s.def)
+			v := def
+			if group != "" {
+				v = iup.ConfigGetVariableIntDef(config, group, s.handle, def)
+			}
+			h.SetAttribute("VALUE", strconv.Itoa(v))
+		case kindStr:
+			v := s.def
+			if group != "" {
+				v = iup.ConfigGetVariableStrDef(config, group, s.handle, s.def)
+			}
+			h.SetAttribute("VALUE", v)
+		}
+	}
+
+	userLossless = iup.GetHandle("Lossless").GetAttribute("VALUE") == "ON"
+
+	syncLabels()
+	setActive()
+	previewPost()
+}
+
+// syncLabels mirrors slider values into their value labels and retunes the effort slider for the current format.
+func syncLabels() {
+	iup.GetHandle("LabelQuality").SetAttribute("TITLE", iup.GetHandle("Quality").GetInt("VALUE"))
+	iup.GetHandle("LabelBrightness").SetAttribute("TITLE", iup.GetHandle("Brightness").GetInt("VALUE"))
+	iup.GetHandle("LabelContrast").SetAttribute("TITLE", iup.GetHandle("Contrast").GetInt("VALUE"))
+
+	format := strings.ToLower(iup.GetHandle("Format").GetAttribute("VALUESTRING"))
+	eff := iup.GetHandle("Effort").GetInt("VALUE")
+	setEffort(format)
+	switch format {
+	case "webp", "avif", "jxl":
+		val := iup.GetHandle("Effort")
+		val.SetAttribute("VALUE", strconv.Itoa(eff))
+		iup.GetHandle("LabelEffort").SetAttribute("TITLE", fmt.Sprintf("%s: %d", val.GetAttribute("EFFORTNAME"), eff))
+	}
+
+	iup.Refresh(iup.GetHandle("Tabs"))
+}
+
+func fillProfileList() {
+	list := iup.GetHandle("Profile")
+	list.SetAttribute("REMOVEITEM", "ALL")
+
+	cur := currentProfile()
+	sel := 1
+	for i, n := range profileNames() {
+		list.SetAttribute(strconv.Itoa(i+1), n)
+		if n == cur {
+			sel = i + 1
+		}
+	}
+
+	list.SetAttribute("VALUE", strconv.Itoa(sel))
+}
+
+// profilesInit loads the current profile on startup, creating a default one on the first run.
+func profilesInit() {
+	if len(profileNames()) == 0 {
+		iup.ConfigSetVariableStr(config, profilesGroup, "Names", "Default")
+		iup.ConfigSetVariableStr(config, profilesGroup, "Current", "Default")
+		settingsSave(profileGroup("Default"))
+	}
+
+	fillProfileList()
+	settingsApply(profileGroup(currentProfile()))
+}
+
+func onProfileSelect(ih iup.Ihandle) int {
+	name := ih.GetAttribute("VALUESTRING")
+	if name == "" {
+		return iup.DEFAULT
+	}
+
+	iup.ConfigSetVariableStr(config, profilesGroup, "Current", name)
+	iup.ConfigSave(config)
+
+	settingsApply(profileGroup(name))
+
+	return iup.DEFAULT
+}
+
+func onSave(iup.Ihandle) int {
+	name := currentProfile()
+	if iup.GetParam(i18n.Str(i18n.DlgSaveProfile), nil, i18n.Str(i18n.ParamName), &name) != 1 {
+		return iup.DEFAULT
+	}
+
+	name = strings.TrimSpace(name)
+	if name == "" || strings.ContainsAny(name, ".;") {
+		iup.Message(i18n.Str(i18n.MsgInvalidNameTitle), i18n.Str(i18n.MsgInvalidNameBody))
+
+		return iup.DEFAULT
+	}
+
+	settingsSave(profileGroup(name))
+
+	names := profileNames()
+	if !slices.Contains(names, name) {
+		names = append(names, name)
+		iup.ConfigSetVariableStr(config, profilesGroup, "Names", strings.Join(names, ";"))
+	}
+
+	iup.ConfigSetVariableStr(config, profilesGroup, "Current", name)
+	iup.ConfigSave(config)
+
+	fillProfileList()
+
+	return iup.DEFAULT
+}
+
+func onReset(iup.Ihandle) int {
+	settingsApply("")
+
+	return iup.DEFAULT
+}

cmd/cbconvert-gui/state.go

@@ -0,0 +1,176 @@
+package main
+
+import (
+	"runtime/debug"
+	"strings"
+
+	"github.com/gen2brain/cbconvert/cmd/cbconvert-gui/i18n"
+	"github.com/gen2brain/iup-go/iup"
+)
+
+// jxlLosslessBuild reports whether wasm2go and nodynamic leave zune-jpegxl (lossless-only) as the only jxl encoder.
+var jxlLosslessBuild = func() bool {
+	info, ok := debug.ReadBuildInfo()
+	if !ok {
+		return false
+	}
+	var wasm2go, nodynamic bool
+	for _, kv := range info.Settings {
+		if kv.Key != "-tags" {
+			continue
+		}
+		for _, t := range strings.Split(kv.Value, ",") {
+			switch t {
+			case "wasm2go":
+				wasm2go = true
+			case "nodynamic":
+				nodynamic = true
+			}
+		}
+	}
+	return wasm2go && nodynamic
+}()
+
+// userLossless is the user's Lossless preference, tracked separately because a jxl
+// wasm2go build force-sets the widget on.
+var userLossless bool
+
+func setActive() {
+	if busy {
+		return
+	}
+
+	opts := options()
+	count := iup.GetHandle("Table").GetInt("NUMLIN")
+
+	if count > 0 && index != -1 {
+		iup.GetHandle("PageBox").SetAttribute("VISIBLE", "YES")
+	} else {
+		iup.GetHandle("PageBox").SetAttribute("VISIBLE", "NO")
+	}
+
+	if count == 0 {
+		iup.GetHandle("Remove").SetAttribute("ACTIVE", "NO")
+		iup.GetHandle("RemoveAll").SetAttribute("ACTIVE", "NO")
+
+		iup.GetHandle("Preview").SetAttribute("IMAGE", "logo")
+		iup.GetHandle("PreviewInfo").SetAttribute("TITLE", "")
+	} else {
+		if index != -1 {
+			iup.GetHandle("Remove").SetAttribute("ACTIVE", "YES")
+		}
+		iup.GetHandle("RemoveAll").SetAttribute("ACTIVE", "YES")
+	}
+
+	active := "YES"
+	var tip string
+	switch {
+	case count == 0 && opts.OutDir == "":
+		active, tip = "NO", i18n.Lng(i18n.StatusNeedFilesAndDir)
+	case count == 0:
+		active, tip = "NO", i18n.Lng(i18n.StatusNeedFiles)
+	case opts.OutDir == "":
+		active, tip = "NO", i18n.Lng(i18n.StatusNeedOutDir)
+	}
+
+	enabledTip := map[string]string{
+		"Thumbnail": i18n.Lng(i18n.TipThumbnail),
+		"Cover":     i18n.Lng(i18n.TipCover),
+		"Convert":   i18n.Lng(i18n.TipConvert),
+	}
+
+	for _, h := range []string{"Thumbnail", "Cover", "Convert"} {
+		b := iup.GetHandle(h)
+		b.SetAttribute("ACTIVE", active)
+		if active == "YES" {
+			b.SetAttribute("TIP", enabledTip[h])
+		} else {
+			b.SetAttribute("TIP", tip)
+		}
+	}
+
+	if opts.NoConvert {
+		iup.GetHandle("VboxImage").SetAttribute("ACTIVE", "NO")
+		iup.GetHandle("VboxTransform").SetAttribute("ACTIVE", "NO")
+	} else {
+		iup.GetHandle("VboxImage").SetAttribute("ACTIVE", "YES")
+		iup.GetHandle("VboxTransform").SetAttribute("ACTIVE", "YES")
+	}
+
+	canLossless := opts.Format == "webp" || opts.Format == "avif" || opts.Format == "jxl"
+	jxlLossless := jxlLosslessBuild && opts.Format == "jxl"
+
+	// jxl wasm2go forces lossless on; otherwise show the user's preference so it doesn't stay stuck on.
+	losslessVal := "OFF"
+	if jxlLossless || userLossless {
+		losslessVal = "ON"
+	}
+	iup.GetHandle("Lossless").SetAttribute("VALUE", losslessVal)
+	losslessOn := jxlLossless || (canLossless && userLossless)
+
+	if (opts.Format == "jpeg" || canLossless) && !opts.NoConvert && !losslessOn {
+		iup.GetHandle("VboxQuality").SetAttribute("ACTIVE", "YES")
+	} else {
+		iup.GetHandle("VboxQuality").SetAttribute("ACTIVE", "NO")
+	}
+
+	if canLossless && !opts.NoConvert {
+		iup.GetHandle("VboxEffort").SetAttribute("ACTIVE", "YES")
+		iup.GetHandle("Lossless").SetAttribute("ACTIVE", "YES")
+	} else {
+		iup.GetHandle("VboxEffort").SetAttribute("ACTIVE", "NO")
+		iup.GetHandle("Lossless").SetAttribute("ACTIVE", "NO")
+	}
+
+	if jxlLossless {
+		iup.GetHandle("Lossless").SetAttribute("ACTIVE", "NO")
+		iup.GetHandle("VboxEffort").SetAttribute("ACTIVE", "NO")
+	}
+
+	if opts.Width != 0 && opts.Height != 0 && !opts.NoConvert {
+		iup.GetHandle("Fit").SetAttribute("ACTIVE", "YES")
+	} else {
+		iup.GetHandle("Fit").SetAttribute("ACTIVE", "NO")
+	}
+
+	if opts.Combine {
+		iup.GetHandle("VboxOutFile").SetAttribute("ACTIVE", "YES")
+	} else {
+		iup.GetHandle("VboxOutFile").SetAttribute("ACTIVE", "NO")
+	}
+
+	if opts.Archive == "zip" {
+		iup.GetHandle("VboxZipLevel").SetAttribute("ACTIVE", "YES")
+	} else {
+		iup.GetHandle("VboxZipLevel").SetAttribute("ACTIVE", "NO")
+	}
+}
+
+// setBusy locks the UI while an operation runs and turns Convert into a Cancel button.
+func setBusy(on bool) {
+	busy = on
+
+	// Controls not governed by setActive; setActive owns the rest.
+	always := "YES"
+	if on {
+		always = "NO"
+	}
+	for _, h := range []string{"AddFiles", "AddDir", "Profile", "Reset", "Save", "Command", "Tabs", "Table"} {
+		iup.GetHandle(h).SetAttribute("ACTIVE", always)
+	}
+
+	convert := iup.GetHandle("Convert")
+	if on {
+		for _, h := range []string{"Remove", "RemoveAll", "Thumbnail", "Cover"} {
+			iup.GetHandle(h).SetAttribute("ACTIVE", "NO")
+		}
+		convert.SetAttribute("ACTIVE", "YES")
+		convert.SetAttribute("TITLE", i18n.Lng(i18n.BtnCancel))
+		convert.SetAttribute("TIP", i18n.Lng(i18n.TipCancel))
+	} else {
+		activeConv = nil
+		convert.SetAttribute("TITLE", i18n.Lng(i18n.BtnConvert))
+		convert.SetAttribute("TIP", i18n.Lng(i18n.TipConvert))
+		setActive() // restores the conditional buttons and option boxes
+	}
+}

cmd/cbconvert-gui/widgets.go

@@ -0,0 +1,798 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"image/gif"
+	"math"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"github.com/gen2brain/cbconvert"
+	"github.com/gen2brain/cbconvert/cmd/cbconvert-gui/i18n"
+	"github.com/gen2brain/iup-go/iup"
+)
+
+func setEffort(format string) {
+	val := iup.GetHandle("Effort")
+
+	var name string
+
+	switch format {
+	case "webp":
+		val.SetAttributes("MIN=0, MAX=6, SHOWTICKS=7, VALUE=4")
+		val.SetAttribute("TIP", i18n.Lng(i18n.TipEffortWebp))
+		name = i18n.Str(i18n.EffortMethod)
+	case "avif":
+		val.SetAttributes("MIN=0, MAX=10, SHOWTICKS=11, VALUE=10")
+		val.SetAttribute("TIP", i18n.Lng(i18n.TipEffortAvif))
+		name = i18n.Str(i18n.EffortSpeed)
+	case "jxl":
+		val.SetAttributes("MIN=1, MAX=10, SHOWTICKS=10, VALUE=7")
+		val.SetAttribute("TIP", i18n.Lng(i18n.TipEffortJxl))
+		name = i18n.Str(i18n.EffortEffort)
+	default:
+		return
+	}
+
+	val.SetAttribute("EFFORTNAME", name)
+	iup.GetHandle("LabelEffort").SetAttribute("TITLE", fmt.Sprintf("%s: %d", name, val.GetInt("VALUE")))
+	iup.Refresh(iup.GetHandle("LabelEffort"))
+}
+
+// tableRowColors sets the alternating row colors for dark or light mode.
+func tableRowColors(t iup.Ihandle, dark bool) {
+	even, odd := "#F0F0F0", "#FFFFFF"
+	if dark {
+		even, odd = "#3A3A3A", "#2D2D2D"
+	}
+	t.SetAttribute("EVENROWCOLOR", even)
+	t.SetAttribute("ODDROWCOLOR", odd)
+}
+
+func list() iup.Ihandle {
+	t := iup.Table().SetHandle("Table")
+	t.SetAttributes(map[string]string{
+		"EXPAND":         "YES",
+		"NUMCOL":         "3",
+		"NUMLIN":         "0",
+		"TITLE1":         i18n.Lng(i18n.ColTitle),
+		"TITLE2":         i18n.Lng(i18n.ColType),
+		"TITLE3":         i18n.Lng(i18n.ColSize),
+		"WIDTH1":         "250",
+		"WIDTH2":         "50",
+		"WIDTH3":         "100",
+		"ALIGNMENT2":     "ACENTER",
+		"ALIGNMENT3":     "ARIGHT",
+		"SELECTIONMODE":  "SINGLE",
+		"USERRESIZE":     "YES",
+		"STRETCHLAST":    "NO",
+		"FOCUSRECT":      "NO",
+		"SORTABLE":       "YES",
+		"ALTERNATECOLOR": "YES",
+	})
+
+	tableRowColors(t, iup.GetGlobal("DARKMODE") == "YES" && iup.GetGlobal("AUTODARKMODE") == "YES")
+
+	t.SetCallback("ENTERITEM_CB", iup.EnterItemFunc(func(ih iup.Ihandle, lin, col int) int {
+		index = lin - 1
+		setActive()
+		previewPost()
+
+		return iup.DEFAULT
+	}))
+
+	t.SetCallback("SORT_CB", iup.TableSortFunc(onSort))
+
+	t.SetCallback("DROPFILES_CB", iup.DropFilesFunc(func(ih iup.Ihandle, fileName string, num, x, y int) int {
+		dec, err := url.QueryUnescape(fileName)
+		if err != nil {
+			iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+			fmt.Println(err)
+
+			return iup.DEFAULT
+		}
+
+		conv := cbconvert.New(options())
+
+		fs, err := conv.Files([]string{dec})
+		if err != nil {
+			iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
+			fmt.Println(err)
+
+			return iup.DEFAULT
+		}
+
+		addFiles(fs)
+
+		return iup.DEFAULT
+	}))
+
+	return iup.Vbox(t)
+}
+
+func preview() iup.Ihandle {
+	return iup.Frame(
+		iup.Vbox(
+			iup.Canvas().SetAttributes("EXPAND=YES, MINSIZE=400x, BORDER=NO").SetHandle("Preview").
+				SetCallback("ACTION", iup.ActionFunc(drawPreview)).
+				SetCallback("POSTMESSAGE_CB", iup.PostMessageFunc(previewMessage)),
+			iup.Label("").SetAttributes("EXPAND=HORIZONTAL, ALIGNMENT=ACENTER").SetHandle("PreviewInfo"),
+		),
+	)
+}
+
+// previewTheme holds the preview canvas colors for light or dark mode.
+type previewTheme struct {
+	gradTop, gradBottom string
+	card, cardBorder    string
+	frame, shadow       string
+}
+
+func previewThemeFor(dark bool) previewTheme {
+	if dark {
+		return previewTheme{
+			gradTop: "#3A3F45", gradBottom: "#202327",
+			card: "#FFFFFF", cardBorder: "#16181B",
+			frame: "#101214", shadow: "#141619",
+		}
+	}
+
+	return previewTheme{
+		gradTop: "#F7F9FC", gradBottom: "#DBE2EA",
+		card: "#FFFFFF", cardBorder: "#CDD5DE",
+		frame: "#BFC8D2", shadow: "#B7C0CB",
+	}
+}
+
+// drawPreview paints a gradient background, then the cover framed with a drop shadow, or an empty page card with the logo.
+func drawPreview(ih iup.Ihandle) int {
+	iup.DrawBegin(ih)
+	defer iup.DrawEnd(ih)
+
+	cw, ch := iup.DrawGetSize(ih)
+	th := previewThemeFor(iup.GetGlobal("DARKMODE") == "YES" && iup.GetGlobal("AUTODARKMODE") == "YES")
+
+	iup.DrawLinearGradient(ih, 0, 0, cw, ch, 90, th.gradTop, th.gradBottom)
+
+	margin := cw / 24
+	if m := ch / 24; m < margin {
+		margin = m
+	}
+	if margin < 12 {
+		margin = 12
+	}
+
+	if hasCover {
+		drawCover(ih, th, cw, ch, margin)
+	} else {
+		drawPlaceholder(ih, th, cw, ch, margin)
+	}
+
+	return iup.DEFAULT
+}
+
+// drawCover draws the loaded cover scaled to fit, with a drop shadow and a thin frame.
+func drawCover(ih iup.Ihandle, th previewTheme, cw, ch, margin int) {
+	iw, ihh, _ := iup.DrawGetImageInfo("cover")
+	if iw <= 0 || ihh <= 0 {
+		return
+	}
+
+	s := math.Min(float64(cw-2*margin)/float64(iw), float64(ch-2*margin)/float64(ihh))
+	dw, dh := int(float64(iw)*s), int(float64(ihh)*s)
+	x, y := (cw-dw)/2, (ch-dh)/2
+
+	const off = 6
+	ih.SetAttribute("DRAWSTYLE", "FILL")
+	ih.SetAttribute("DRAWCOLOR", th.shadow)
+	iup.DrawRectangle(ih, x+off, y+off, x+dw+off, y+dh+off)
+
+	iup.DrawImage(ih, "cover", x, y, dw, dh)
+
+	ih.SetAttribute("DRAWSTYLE", "STROKE")
+	ih.SetAttribute("DRAWLINEWIDTH", "1")
+	ih.SetAttribute("DRAWCOLOR", th.frame)
+	iup.DrawRectangle(ih, x, y, x+dw, y+dh)
+}
+
+// drawPlaceholder draws an empty comic-page card with the logo centered, shown until a cover is loaded.
+func drawPlaceholder(ih iup.Ihandle, th previewTheme, cw, ch, margin int) {
+	cardH := ch - 2*margin
+	cardW := cardH * 2 / 3
+	if cardW > cw-2*margin {
+		cardW = cw - 2*margin
+		cardH = cardW * 3 / 2
+	}
+	x, y := (cw-cardW)/2, (ch-cardH)/2
+
+	r := cardW / 14
+	if r < 8 {
+		r = 8
+	}
+
+	const off = 7
+	ih.SetAttribute("DRAWSTYLE", "FILL")
+	ih.SetAttribute("DRAWCOLOR", th.shadow)
+	iup.DrawRoundedRectangle(ih, x+off, y+off, x+cardW+off, y+cardH+off, r)
+
+	ih.SetAttribute("DRAWCOLOR", th.card)
+	iup.DrawRoundedRectangle(ih, x, y, x+cardW, y+cardH, r)
+
+	ih.SetAttribute("DRAWSTYLE", "STROKE")
+	ih.SetAttribute("DRAWLINEWIDTH", "1")
+	ih.SetAttribute("DRAWCOLOR", th.cardBorder)
+	iup.DrawRoundedRectangle(ih, x, y, x+cardW, y+cardH, r)
+
+	lw, lh, _ := iup.DrawGetImageInfo("logo")
+	if lw <= 0 || lh <= 0 {
+		return
+	}
+
+	s := float64(cardW*2/5) / float64(lw)
+	dw, dh := int(float64(lw)*s), int(float64(lh)*s)
+	iup.DrawImage(ih, "logo", x+(cardW-dw)/2, y+(cardH-dh)/2, dw, dh)
+}
+
+// previewMessage receives a rendered cover from previewRender and triggers a canvas redraw.
+func previewMessage(ih iup.Ihandle, s string, i int, p any) int {
+	if i != previewPage {
+		return iup.DEFAULT
+	}
+
+	img := p.(cbconvert.Image)
+	iup.GetHandle("Loading").SetAttributes("VISIBLE=NO, STOP=YES")
+
+	if img.Image != nil && len(s) == 0 {
+		iup.Destroy(iup.GetHandle("cover"))
+		iup.ImageFromImage(img.Image).SetHandle("cover")
+		hasCover = true
+		iup.GetHandle("PreviewInfo").SetAttribute("TITLE", fmt.Sprintf("%s (%dx%d)", img.SizeHuman, img.Width, img.Height))
+	} else {
+		iup.Destroy(iup.GetHandle("cover"))
+		hasCover = false
+		iup.GetHandle("PreviewInfo").SetAttribute("TITLE", "")
+
+		sp := strings.Split(s, ": ")
+		if len(sp) > 1 {
+			iup.MessageError(ih, fmt.Sprintf("%s\n\n%s", sp[0], strings.Join(sp[1:], ": ")))
+		}
+	}
+
+	iup.Update(ih)
+
+	return iup.DEFAULT
+}
+
+// pageBox is the page-navigation spin shown in the status bar; hidden until a comic is selected.
+func pageBox() iup.Ihandle {
+	return iup.Hbox(
+		iup.Space().SetAttribute("SIZE", "5"),
+		iup.Label(i18n.Lng(i18n.LblPage)),
+		iup.Space().SetAttribute("SIZE", "3"),
+		iup.Text().SetAttributes(`SPIN=YES, SPINMIN=1, SPINMAX=1, VALUE=1, VISIBLECOLUMNS=3, MASK="/d*"`).SetHandle("Page").
+			SetAttribute("TIP", i18n.Lng(i18n.TipPage)).
+			SetCallback("SPIN_CB", iup.SpinFunc(func(ih iup.Ihandle, pos int) int {
+				return onPageChanged()
+			})).
+			SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+				return onPageChanged()
+			})).
+			SetCallback("POSTMESSAGE_CB", iup.PostMessageFunc(func(ih iup.Ihandle, s string, i int, p any) int {
+				if s != previewPath {
+					return iup.DEFAULT
+				}
+
+				ih.SetAttribute("SPINMAX", strconv.Itoa(i))
+				iup.GetHandle("PageCount").SetAttribute("TITLE", fmt.Sprintf("/ %d", i))
+
+				if previewPage > i-1 {
+					previewPage = i - 1
+				}
+				if previewPage < 0 {
+					previewPage = 0
+				}
+				ih.SetAttribute("VALUE", strconv.Itoa(previewPage+1))
+
+				iup.Refresh(iup.GetHandle("PageBox"))
+
+				previewRender()
+
+				return iup.DEFAULT
+			})),
+		iup.Space().SetAttribute("SIZE", "3"),
+		iup.Label("").SetHandle("PageCount"),
+	).SetAttributes("ALIGNMENT=ACENTER, VISIBLE=NO").SetHandle("PageBox")
+}
+
+func tabInput() iup.Ihandle {
+	return iup.Hbox(
+		iup.Vbox(
+			iup.Toggle(i18n.Lng(i18n.TglRecursive)).SetHandle("Recursive").
+				SetAttribute("TIP", i18n.Lng(i18n.TipRecursive)),
+			iup.Toggle(i18n.Lng(i18n.TglNoRGB)).SetHandle("NoRGB").
+				SetAttribute("TIP", i18n.Lng(i18n.TipNoRGB)),
+			iup.Toggle(i18n.Lng(i18n.TglNoCover)).SetHandle("NoCover").
+				SetAttribute("TIP", i18n.Lng(i18n.TipNoCover)),
+			iup.Toggle(i18n.Lng(i18n.TglNoNonImage)).SetHandle("NoNonImage").
+				SetAttribute("TIP", i18n.Lng(i18n.TipNoNonImage)),
+			iup.Toggle(i18n.Lng(i18n.TglNoConvert)).SetHandle("NoConvert").
+				SetAttribute("TIP", i18n.Lng(i18n.TipNoConvert)).
+				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+					setActive()
+
+					return iup.DEFAULT
+				})),
+		).SetAttributes("NGAP=10"),
+		iup.Space().SetAttribute("SIZE", "15"),
+		iup.Vbox(
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblMinSize)),
+				iup.Text().SetAttributes(`SPIN=YES, SPINMAX=2048, VISIBLECOLUMNS=4, MASK="/d*"`).SetHandle("Size").
+					SetAttribute("TIP", i18n.Lng(i18n.TipSize)),
+			),
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblDPI)),
+				iup.List().SetAttributes(map[string]string{
+					"DROPDOWN":       "YES",
+					"EDITBOX":        "YES",
+					"VISIBLECOLUMNS": "6",
+					"VALUE":          "Default",
+					"1":              "Default",
+					"2":              "150",
+					"3":              "300",
+					"4":              "600",
+					"5":              "1200",
+				}).SetHandle("DPI").
+					SetAttribute("TIP", i18n.Lng(i18n.TipDPI)),
+			),
+		).SetAttributes("NGAP=10"),
+	).SetHandle("VboxInput")
+}
+
+func tabOutput() iup.Ihandle {
+	return iup.Hbox(
+		iup.Vbox(
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblOutDir)),
+				iup.Text().SetAttributes("VISIBLECOLUMNS=16, MINSIZE=100x").SetHandle("OutDir").
+					SetAttribute("TIP", i18n.Lng(i18n.TipOutDir)).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						setActive()
+
+						return iup.DEFAULT
+					})),
+				iup.Space().SetAttribute("SIZE", "5x0"),
+				iup.Button(i18n.Lng(i18n.BtnBrowse)).SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+					SetCallback("ACTION", iup.ActionFunc(onOutputDirectory)),
+			),
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblSuffix)),
+				iup.Text().SetAttributes("VISIBLECOLUMNS=16, MINSIZE=100x").SetHandle("Suffix").
+					SetAttribute("TIP", i18n.Lng(i18n.TipSuffix)),
+			),
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblArchive)),
+				iup.List().SetAttributes(map[string]string{
+					"DROPDOWN": "YES",
+					"VALUE":    "1",
+					"1":        "ZIP",
+					"2":        "TAR",
+				}).SetHandle("Archive").
+					SetAttribute("TIP", i18n.Lng(i18n.TipArchive)).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						setActive()
+
+						return iup.DEFAULT
+					})),
+			),
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblCompression)),
+				iup.List().SetAttributes(map[string]string{
+					"DROPDOWN": "YES",
+					"VALUE":    "1",
+					"1":        "Default",
+					"2":        "Store (none)",
+					"3":        "1",
+					"4":        "2",
+					"5":        "3",
+					"6":        "4",
+					"7":        "5",
+					"8":        "6",
+					"9":        "7",
+					"10":       "8",
+					"11":       "9",
+				}).SetHandle("ZipLevel").
+					SetAttribute("TIP", i18n.Lng(i18n.TipZipLevel)),
+			).SetHandle("VboxZipLevel"),
+		).SetAttributes("NGAP=10"),
+		iup.Space().SetAttribute("SIZE", "15"),
+		iup.Vbox(
+			iup.Vbox(
+				iup.Toggle(i18n.Lng(i18n.TglCombine)).SetHandle("Combine").
+					SetAttribute("TIP", i18n.Lng(i18n.TipCombine)).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						setActive()
+
+						return iup.DEFAULT
+					})),
+			),
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblOutFile)),
+				iup.Text().SetAttributes("VISIBLECOLUMNS=16, MINSIZE=100x").SetHandle("OutFile").
+					SetAttribute("TIP", i18n.Lng(i18n.TipOutFile)),
+				iup.Space().SetAttribute("SIZE", "5x0"),
+				iup.Button(i18n.Lng(i18n.BtnBrowse)).SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+					SetCallback("ACTION", iup.ActionFunc(onOutputFile)),
+			).SetHandle("VboxOutFile"),
+		).SetAttributes("NGAP=10"),
+	).SetHandle("VboxOutput")
+}
+
+func tabImage() iup.Ihandle {
+	return iup.Hbox(
+		iup.Vbox(
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblFormat)),
+				iup.List().SetAttributes(map[string]string{
+					"DROPDOWN": "YES",
+					"VALUE":    "1",
+					"1":        "JPEG",
+					"2":        "PNG",
+					"3":        "TIFF",
+					"4":        "BMP",
+					"5":        "WEBP",
+					"6":        "AVIF",
+					"7":        "JXL",
+				}).SetHandle("Format").
+					SetAttribute("TIP", i18n.Lng(i18n.TipFormat)).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						setEffort(strings.ToLower(ih.GetAttribute("VALUESTRING")))
+						setActive()
+						previewPost()
+
+						return iup.DEFAULT
+					})),
+			),
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblSize)),
+				iup.Hbox(
+					iup.Text().SetAttributes(`VISIBLECOLUMNS=6, MASK="/d*"`).SetHandle("Width").
+						SetAttribute("CUEBANNER", i18n.Lng(i18n.CueWidth)).
+						SetAttribute("TIP", i18n.Lng(i18n.TipWidthHeight)).
+						SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+							setActive()
+							ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
+
+							return iup.DEFAULT
+						})).
+						SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
+							if ih.GetAttribute("MYVALUE") != "" {
+								previewPost()
+							}
+							ih.SetAttribute("MYVALUE", "")
+
+							return iup.DEFAULT
+						})),
+					iup.Space().SetAttribute("SIZE", "2"),
+					iup.Label("x"),
+					iup.Space().SetAttribute("SIZE", "2"),
+					iup.Text().SetAttributes(`VISIBLECOLUMNS=6, MASK="/d*"`).SetHandle("Height").
+						SetAttribute("CUEBANNER", i18n.Lng(i18n.CueHeight)).
+						SetAttribute("TIP", i18n.Lng(i18n.TipWidthHeight)).
+						SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+							setActive()
+							ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
+
+							return iup.DEFAULT
+						})).
+						SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
+							if ih.GetAttribute("MYVALUE") != "" {
+								previewPost()
+							}
+							ih.SetAttribute("MYVALUE", "")
+
+							return iup.DEFAULT
+						})),
+				).SetAttributes("ALIGNMENT=ACENTER, NMARGIN=0"),
+			),
+			iup.Vbox(
+				iup.Toggle(i18n.Lng(i18n.TglFit)).SetHandle("Fit").
+					SetAttribute("TIP", i18n.Lng(i18n.TipFit)),
+				iup.Toggle(i18n.Lng(i18n.TglNoUpscale)).SetHandle("NoUpscale").
+					SetAttribute("TIP", i18n.Lng(i18n.TipNoUpscale)),
+			),
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblFilter)),
+				iup.List().SetAttributes(map[string]string{
+					"DROPDOWN": "YES",
+					"VALUE":    "3",
+					"TIP":      i18n.Lng(i18n.FilterLinear),
+					"1":        "NearestNeighbor",
+					"2":        "Box",
+					"3":        "Linear",
+					"4":        "MitchellNetravali",
+					"5":        "CatmullRom",
+					"6":        "Gaussian",
+					"7":        "Lanczos",
+				}).SetHandle("Filter").SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(onFilterChanged)),
+			),
+		).SetAttributes("NGAP=10"),
+		iup.Space().SetAttribute("SIZE", "15"),
+		iup.Vbox(
+			iup.Vbox(
+				iup.Hbox(
+					iup.Label(i18n.Lng(i18n.LblQuality)),
+					iup.Label("75").SetHandle("LabelQuality"),
+				).SetAttributes("NMARGIN=0"),
+				iup.Val("").SetAttributes(`MIN=0, MAX=100, VALUE=75, SHOWTICKS=10`).SetHandle("Quality").
+					SetAttribute("TIP", i18n.Lng(i18n.TipQuality)).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						iup.GetHandle("LabelQuality").SetAttribute("TITLE", ih.GetInt("VALUE"))
+						iup.Refresh(iup.GetHandle("LabelQuality"))
+						ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
+
+						return iup.DEFAULT
+					})).
+					SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
+						if ih.GetAttribute("MYVALUE") != "" {
+							previewPost()
+						}
+						ih.SetAttribute("MYVALUE", "")
+
+						return iup.DEFAULT
+					})),
+			).SetHandle("VboxQuality"),
+			iup.Vbox(
+				iup.Label(i18n.Lng(i18n.LblEffort)).SetHandle("LabelEffort"),
+				iup.Val("").SetAttributes(`MIN=0, MAX=10, VALUE=0, SHOWTICKS=11`).SetHandle("Effort").
+					SetAttribute("TIP", i18n.Lng(i18n.TipEffort)).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						iup.GetHandle("LabelEffort").SetAttribute("TITLE", fmt.Sprintf("%s: %d", ih.GetAttribute("EFFORTNAME"), ih.GetInt("VALUE")))
+						iup.Refresh(iup.GetHandle("LabelEffort"))
+						ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
+
+						return iup.DEFAULT
+					})).
+					SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
+						if ih.GetAttribute("MYVALUE") != "" {
+							previewPost()
+						}
+						ih.SetAttribute("MYVALUE", "")
+
+						return iup.DEFAULT
+					})),
+			).SetHandle("VboxEffort"),
+			iup.Vbox(
+				iup.Toggle(i18n.Lng(i18n.TglLossless)).SetHandle("Lossless").
+					SetAttribute("TIP", i18n.Lng(i18n.TipLossless)).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						userLossless = ih.GetAttribute("VALUE") == "ON"
+						setActive()
+						previewPost()
+
+						return iup.DEFAULT
+					})),
+			),
+			iup.Vbox(
+				iup.Toggle(i18n.Lng(i18n.TglGrayscale)).SetHandle("Grayscale").
+					SetAttribute("TIP", i18n.Lng(i18n.TipGrayscale)).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						previewPost()
+
+						return iup.DEFAULT
+					})),
+			),
+		).SetAttributes("NGAP=10"),
+	).SetHandle("VboxImage")
+}
+
+func tabTransform() iup.Ihandle {
+	return iup.Vbox(
+		iup.Vbox(
+			iup.Hbox(
+				iup.Label(i18n.Lng(i18n.LblBrightness)),
+				iup.Label("0").SetHandle("LabelBrightness"),
+			).SetAttributes("ALIGNMENT=ACENTER, NMARGIN=0"),
+			iup.Val("").SetAttributes(`MIN=-100, MAX=100, VALUE=0, SHOWTICKS=10`).SetHandle("Brightness").
+				SetAttribute("TIP", i18n.Lng(i18n.TipBrightness)).
+				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+					iup.GetHandle("LabelBrightness").SetAttribute("TITLE", iup.GetHandle("Brightness").GetInt("VALUE"))
+					iup.Refresh(iup.GetHandle("LabelBrightness"))
+					ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
+
+					return iup.DEFAULT
+				})).
+				SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
+					if ih.GetAttribute("MYVALUE") != "" {
+						previewPost()
+					}
+					ih.SetAttribute("MYVALUE", "")
+
+					return iup.DEFAULT
+				})),
+		),
+		iup.Vbox(
+			iup.Hbox(
+				iup.Label(i18n.Lng(i18n.LblContrast)),
+				iup.Label("0").SetHandle("LabelContrast"),
+			).SetAttributes("ALIGNMENT=ACENTER, NMARGIN=0"),
+			iup.Val("").SetAttributes(`MIN=-100, MAX=100, VALUE=0, SHOWTICKS=10`).SetHandle("Contrast").
+				SetAttribute("TIP", i18n.Lng(i18n.TipContrast)).
+				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+					iup.GetHandle("LabelContrast").SetAttribute("TITLE", iup.GetHandle("Contrast").GetInt("VALUE"))
+					iup.Refresh(iup.GetHandle("LabelContrast"))
+					ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
+
+					return iup.DEFAULT
+				})).
+				SetCallback("KILLFOCUS_CB", iup.KillFocusFunc(func(ih iup.Ihandle) int {
+					if ih.GetAttribute("MYVALUE") != "" {
+						previewPost()
+					}
+					ih.SetAttribute("MYVALUE", "")
+
+					return iup.DEFAULT
+				})),
+		),
+		iup.Vbox(
+			iup.Label(i18n.Lng(i18n.LblRotate)),
+			iup.List().SetAttributes(map[string]string{
+				"DROPDOWN": "YES",
+				"VALUE":    "1",
+				"1":        "0",
+				"2":        "90",
+				"3":        "180",
+				"4":        "270",
+			}).SetHandle("Rotate").
+				SetAttribute("TIP", i18n.Lng(i18n.TipRotate)).
+				SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+					previewPost()
+
+					return iup.DEFAULT
+				})),
+		),
+	).SetHandle("VboxTransform").SetAttributes("NGAP=10")
+}
+
+func tabs() iup.Ihandle {
+	return iup.Tabs(
+		tabInput().SetAttributes("TABTITLE="+i18n.Lng(i18n.TabInput)+", NMARGIN=10x10"),
+		tabOutput().SetAttributes("TABTITLE="+i18n.Lng(i18n.TabOutput)+", NMARGIN=10x10"),
+		tabImage().SetAttributes("TABTITLE="+i18n.Lng(i18n.TabImage)+", NMARGIN=10x10"),
+		tabTransform().SetAttributes("TABTITLE="+i18n.Lng(i18n.TabTransform)+", NMARGIN=10x10"),
+	).SetHandle("Tabs")
+}
+
+func buttons() iup.Ihandle {
+	addFiles := iup.Button(i18n.Lng(i18n.BtnAddFiles)).SetHandle("AddFiles").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onAddFiles))
+	addDir := iup.Button(i18n.Lng(i18n.BtnAddDir)).SetHandle("AddDir").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onAddDir))
+	remove := iup.Button(i18n.Lng(i18n.BtnRemove)).SetHandle("Remove").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onRemove))
+	removeAll := iup.Button(i18n.Lng(i18n.BtnRemoveAll)).SetHandle("RemoveAll").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onRemoveAll))
+	thumbnail := iup.Button(i18n.Lng(i18n.BtnThumbnail)).SetHandle("Thumbnail").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onThumbnail))
+	cover := iup.Button(i18n.Lng(i18n.BtnCover)).SetHandle("Cover").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onCover))
+	convert := iup.Button(i18n.Lng(i18n.BtnConvert)).SetHandle("Convert").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onConvert))
+	reset := iup.Button(i18n.Lng(i18n.BtnReset)).SetHandle("Reset").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetAttribute("TIP", i18n.Lng(i18n.TipReset)).
+		SetCallback("ACTION", iup.ActionFunc(onReset))
+	save := iup.Button(i18n.Lng(i18n.BtnSave)).SetHandle("Save").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetAttribute("TIP", i18n.Lng(i18n.TipSave)).
+		SetCallback("ACTION", iup.ActionFunc(onSave))
+
+	command := iup.Button(i18n.Lng(i18n.BtnCommand)).SetHandle("Command").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetAttribute("TIP", i18n.Lng(i18n.TipCommand)).
+		SetCallback("ACTION", iup.ActionFunc(onCommand))
+
+	profile := iup.List().SetAttributes("DROPDOWN=YES").SetHandle("Profile").
+		SetAttribute("TIP", i18n.Lng(i18n.TipProfile)).
+		SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(onProfileSelect))
+
+	iup.Normalizer(addFiles, addDir, remove, removeAll, thumbnail, cover, convert, reset, save, command).SetAttribute("NORMALIZE", "BOTH")
+	iup.Normalizer(addFiles, addDir, remove, removeAll, thumbnail, cover, convert, reset, save, command, profile).SetAttribute("NORMALIZE", "HORIZONTAL")
+
+	return iup.Vbox(
+		iup.Vbox(
+			addFiles,
+			addDir,
+			remove,
+			removeAll,
+		).SetAttribute("NGAP", "2"),
+		iup.Space().SetAttribute("SIZE", "x5"),
+		iup.Vbox(
+			thumbnail,
+			cover,
+		).SetAttribute("NGAP", "2"),
+		iup.Space().SetAttribute("SIZE", "x5"),
+		iup.Vbox(
+			convert,
+		),
+		iup.Fill(),
+		iup.Vbox(
+			iup.Label(i18n.Lng(i18n.LblProfile)),
+			profile,
+			reset,
+			save,
+			command,
+		).SetAttribute("NGAP", "2"),
+	).SetHandle("Buttons").SetAttributes("ALIGNMENT=ACENTER")
+}
+
+func status() iup.Ihandle {
+	return iup.Hbox(
+		loading(),
+		pageBox(),
+		iup.Fill(),
+		iup.Label("File 1 of 1").SetHandle("LabelStatus1").SetAttributes("VISIBLE=NO"),
+		iup.Space().SetAttribute("SIZE", "5"),
+		iup.Label("(000/000)").SetHandle("LabelStatus2").SetAttributes("VISIBLE=NO"),
+		iup.Space().SetAttribute("SIZE", "5"),
+		iup.ProgressBar().SetAttributes("VISIBLE=NO").SetHandle("ProgressBar").
+			SetCallback("POSTMESSAGE_CB", iup.PostMessageFunc(func(ih iup.Ihandle, s string, i int, p any) int {
+				switch s {
+				case "convert":
+					conv := p.(*cbconvert.Converter)
+					ih.SetAttributes("VALUE=0, VISIBLE=YES")
+					ih.SetAttribute("MAX", conv.Ncontents)
+
+					iup.GetHandle("LabelStatus1").SetAttribute("TITLE", fmt.Sprintf(i18n.Str(i18n.StatusFileOf), conv.CurrFile, conv.Nfiles))
+					iup.GetHandle("LabelStatus1").SetAttributes("VISIBLE=YES")
+					iup.GetHandle("LabelStatus2").SetAttributes("VISIBLE=YES")
+
+					iup.Refresh(iup.GetHandle("StatusBar"))
+				case "start":
+					conv := p.(*cbconvert.Converter)
+					ih.SetAttributes("VALUE=0, VISIBLE=YES")
+					ih.SetAttribute("MAX", conv.Nfiles)
+
+					iup.GetHandle("LabelStatus2").SetAttributes("VISIBLE=YES")
+				case "progress":
+					conv := p.(*cbconvert.Converter)
+					ih.SetAttribute("VALUE", conv.CurrContent)
+					iup.GetHandle("LabelStatus2").SetAttribute("TITLE", fmt.Sprintf("(%03d/%03d)", conv.CurrContent, conv.Ncontents))
+
+					iup.Refresh(iup.GetHandle("StatusBar"))
+				case "progress2":
+					conv := p.(*cbconvert.Converter)
+					ih.SetAttribute("VALUE", conv.CurrFile)
+					iup.GetHandle("LabelStatus2").SetAttribute("TITLE", fmt.Sprintf("(%03d/%03d)", conv.CurrFile, conv.Nfiles))
+
+					iup.Refresh(iup.GetHandle("StatusBar"))
+				case "finish":
+					setBusy(false)
+
+					iup.GetHandle("LabelStatus1").SetAttributes(`TITLE="", VISIBLE=NO`)
+					iup.GetHandle("LabelStatus2").SetAttributes(`TITLE="", VISIBLE=NO`)
+					ih.SetAttributes("VALUE=0, VISIBLE=NO")
+
+					iup.Refresh(iup.GetHandle("StatusBar"))
+
+					iup.GetHandle("dlg").SetCallback("K_ANY", nil)
+					iup.GetHandle("dlg").SetCallback("CLOSE_CB", nil)
+				}
+
+				return iup.DEFAULT
+			})),
+		iup.Space().SetAttribute("SIZE", "5x0"),
+	).SetAttributes("ALIGNMENT=ACENTER, NMARGIN=5x5").SetHandle("StatusBar")
+}
+
+func loading() iup.Ihandle {
+	img, _ := gif.DecodeAll(bytes.NewReader(appLoading))
+	animation := iup.User()
+
+	for idx, i := range img.Image {
+		name := fmt.Sprintf("Loading%d", idx)
+		iup.ImageFromImage(i).SetHandle(name)
+		iup.Append(animation, iup.GetHandle(name))
+	}
+
+	return iup.AnimatedLabel(animation).SetAttributes("VISIBLE=NO").SetHandle("Loading")
+}

cmd/cbconvert/go.mod

@@ -1,39 +1,58 @@
 module github.com/gen2brain/cbconvert/cmd/cbconvert
 
-go 1.23
+go 1.26
 
 require (
-	github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca
+	github.com/gen2brain/cbconvert v1.0.5-0.20260627172825-0f6e32c177ee
-	github.com/schollz/progressbar/v3 v3.13.1
+	github.com/schollz/progressbar/v3 v3.19.0
+	golang.org/x/term v0.44.0
 )
 
 require (
-	github.com/anthonynsimon/bild v0.14.0 // indirect
+	github.com/STARRY-S/zip v0.2.3 // indirect
+	github.com/andybalholm/brotli v1.2.1 // indirect
+	github.com/anthonynsimon/bild v0.15.0 // indirect
+	github.com/bodgit/plumbing v1.3.0 // indirect
+	github.com/bodgit/sevenzip v1.6.4 // indirect
+	github.com/bodgit/windows v1.0.1 // indirect
+	github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 // indirect
 	github.com/dsoprea/go-exif/v2 v2.0.0-20230826092837-6579e82b732d // indirect
 	github.com/dsoprea/go-logging v0.0.0-20200710184922-b02d349568dd // indirect
 	github.com/dsoprea/go-png-image-structure v0.0.0-20210512210324-29b889a6093d // indirect
 	github.com/dsoprea/go-utility v0.0.0-20221003172846-a3e1774ef349 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
-	github.com/ebitengine/purego v0.8.1 // indirect
+	github.com/ebitengine/purego v0.10.1 // indirect
 	github.com/fvbommel/sortorder v1.1.0 // indirect
-	github.com/gen2brain/avif v0.4.1 // indirect
+	github.com/gen2brain/avif v0.5.1 // indirect
-	github.com/gen2brain/go-fitz v1.24.14 // indirect
+	github.com/gen2brain/go-fitz v1.28.0 // indirect
-	github.com/gen2brain/go-unarr v0.2.4 // indirect
+	github.com/gen2brain/jpegli v0.4.1 // indirect
-	github.com/gen2brain/jpegli v0.3.3 // indirect
+	github.com/gen2brain/jpegn v0.4.2 // indirect
-	github.com/gen2brain/jpegxl v0.4.2 // indirect
+	github.com/gen2brain/jpegxl v0.5.2 // indirect
-	github.com/gen2brain/webp v0.5.1 // indirect
+	github.com/gen2brain/webp v0.6.1 // indirect
 	github.com/go-errors/errors v1.5.1 // indirect
-	github.com/golang/geo v0.0.0-20230421003525-6adc56603217 // indirect
+	github.com/golang/geo v0.0.0-20260625163123-7c0e84413537 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25 // indirect
-	github.com/jupiterrider/ffi v0.2.1 // indirect
+	github.com/klauspost/compress v1.18.6 // indirect
-	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/klauspost/pgzip v1.2.6 // indirect
+	github.com/mattn/go-runewidth v0.0.24 // indirect
+	github.com/mholt/archives v0.1.5 // indirect
+	github.com/mikelolasagasti/xz v1.0.1 // indirect
+	github.com/minio/minlz v1.1.1 // indirect
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
-	github.com/rivo/uniseg v0.3.4 // indirect
+	github.com/nwaples/rardecode/v2 v2.2.5 // indirect
-	github.com/tetratelabs/wazero v1.8.1 // indirect
+	github.com/pierrec/lz4/v4 v4.1.27 // indirect
-	golang.org/x/image v0.21.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
-	golang.org/x/net v0.30.0 // indirect
+	github.com/sorairolake/lzip-go v0.3.8 // indirect
-	golang.org/x/sync v0.8.0 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
-	golang.org/x/sys v0.26.0 // indirect
+	github.com/stangelandcl/ppmd v0.1.1 // indirect
-	golang.org/x/term v0.25.0 // indirect
+	github.com/tetratelabs/wazero v1.12.0 // indirect
+	github.com/ulikunitz/xz v0.5.15 // indirect
+	go4.org v0.0.0-20260112195520-a5071408f32f // indirect
+	golang.org/x/image v0.43.0 // indirect
+	golang.org/x/net v0.56.0 // indirect
+	golang.org/x/sync v0.21.0 // indirect
+	golang.org/x/sys v0.46.0 // indirect
+	golang.org/x/text v0.38.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )

cmd/cbconvert/go.sum

@@ -1,8 +1,25 @@
-github.com/anthonynsimon/bild v0.14.0 h1:IFRkmKdNdqmexXHfEU7rPlAmdUZ8BDZEGtGHDnGWync=
+github.com/STARRY-S/zip v0.2.3 h1:luE4dMvRPDOWQdeDdUxUoZkzUIpTccdKdhHHsQJ1fm4=
-github.com/anthonynsimon/bild v0.14.0/go.mod h1:hcvEAyBjTW69qkKJTfpcDQ83sSZHxwOunsseDfeQhUs=
+github.com/STARRY-S/zip v0.2.3/go.mod h1:lqJ9JdeRipyOQJrYSOtpNAiaesFO6zVDsE8GIGFaoSk=
+github.com/andybalholm/brotli v1.2.1 h1:R+f5xP285VArJDRgowrfb9DqL18yVK0gKAW/F+eTWro=
+github.com/andybalholm/brotli v1.2.1/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
+github.com/anthonynsimon/bild v0.15.0 h1:FzvaNLuNlAPKw1Xz7V2WYOcGIEBMj8Y6ZyAk7CI+HzA=
+github.com/anthonynsimon/bild v0.15.0/go.mod h1:qIgJ9FldkCn0iy5Ad24fzUkz5R+iJ0WfhiV+6FeCB5A=
+github.com/bodgit/plumbing v1.3.0 h1:pf9Itz1JOQgn7vEOE7v7nlEfBykYqvUYioC61TwWCFU=
+github.com/bodgit/plumbing v1.3.0/go.mod h1:JOTb4XiRu5xfnmdnDJo6GmSbSbtSyufrsyZFByMtKEs=
+github.com/bodgit/sevenzip v1.6.4 h1:iHiVJfxbrB6RF4X+snI2MpVgNBKmVfGaTqZGNlMQIU0=
+github.com/bodgit/sevenzip v1.6.4/go.mod h1:ZtNi5KNgHXeXg1G7WiF0IWSuFE2eG6lt/cTGlvuirO0=
+github.com/bodgit/windows v1.0.1 h1:tF7K6KOluPYygXa3Z2594zxlkbKPAOvqr97etrGNIz4=
+github.com/bodgit/windows v1.0.1/go.mod h1:a6JLwrB4KrTR5hBpp8FI9/9W9jJfeQ2h4XDXU74ZCdM=
+github.com/chengxilo/virtualterm v1.0.4 h1:Z6IpERbRVlfB8WkOmtbHiDbBANU7cimRIof7mk9/PwM=
+github.com/chengxilo/virtualterm v1.0.4/go.mod h1:DyxxBZz/x1iqJjFxTFcr6/x+jSpqN0iwWCOK1q10rlY=
+github.com/clipperhouse/uax29/v2 v2.2.0 h1:ChwIKnQN3kcZteTXMgb1wztSgaU+ZemkgWdohwgs8tY=
+github.com/clipperhouse/uax29/v2 v2.2.0/go.mod h1:EFJ2TJMRUaplDxHKj1qAEhCtQPW2tJSwu5BF98AuoVM=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 h1:2tV76y6Q9BB+NEBasnqvs7e49aEBFI8ejC89PSnWH+4=
+github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707/go.mod h1:qssHWj60/X5sZFNxpG4HBPDHVqxNm4DfnCKgrbZOT+s=
+github.com/dsnet/golib v0.0.0-20171103203638-1ea166775780/go.mod h1:Lj+Z9rebOhdfkVLjJ8T6VcRQv3SXugXy999NBtR9aFY=
 github.com/dsoprea/go-exif/v2 v2.0.0-20200321225314-640175a69fe4/go.mod h1:Lm2lMM2zx8p4a34ZemkaUV95AnMl4ZvLbCUbwOvLC2E=
 github.com/dsoprea/go-exif/v2 v2.0.0-20200604193436-ca8584a0e1c4/go.mod h1:9EXlPeHfblFFnwu5UOqmP2eoZfJyAZ2Ri/Vki33ajO0=
 github.com/dsoprea/go-exif/v2 v2.0.0-20230826092837-6579e82b732d h1:yeH8wrJa3+8uKKDAdURHUK1ds2UvKhMqX2MiOdVeKPs=
@@ -21,24 +38,24 @@ github.com/dsoprea/go-utility v0.0.0-20221003172846-a3e1774ef349/go.mod h1:KVK+/
 github.com/dsoprea/go-utility/v2 v2.0.0-20200717064901-2fccff4aa15e/go.mod h1:uAzdkPTub5Y9yQwXe8W4m2XuP0tK4a9Q/dantD0+uaU=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/ebitengine/purego v0.8.1 h1:sdRKd6plj7KYW33EH5As6YKfe8m9zbN9JMrOjNVF/BE=
+github.com/ebitengine/purego v0.10.1 h1:dewVBCBT2GaMu1SrNTYxQhgQBethzfhiwvZiLGP/qyY=
-github.com/ebitengine/purego v0.8.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/ebitengine/purego v0.10.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQmYw=
 github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
-github.com/gen2brain/avif v0.4.1 h1:fjwv5SDNYHdI1gbW6MJn3Yaxs1ldUEfAIAH8Ahee538=
+github.com/gen2brain/avif v0.5.1 h1:LQzLsJpWyGlsa4wuZ3D57qEbCiICIK7Yidz5ZPEwzTk=
-github.com/gen2brain/avif v0.4.1/go.mod h1:oePci7KPleKZ8X/2rjZ3FlVm2JFYjPwXiQpNgq9wrzs=
+github.com/gen2brain/avif v0.5.1/go.mod h1:QgrYqdVE9y40PCfArK9VakcMIpYeDYpZmCSLkW6C1n8=
-github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca h1:qYA+cXWUG/Dx+wG2yQ4iuw/s5ROGdXAdo5aIUHrOq4U=
+github.com/gen2brain/cbconvert v1.0.5-0.20260627172825-0f6e32c177ee h1:9ggHORYXL+0zSdfC0bJA049amaH5wW6jZgO5dGisKm4=
-github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca/go.mod h1:pQ9kQXsCZQqy7LraruUkBl7CpKNHFpWayxqQ+qliE8Y=
+github.com/gen2brain/cbconvert v1.0.5-0.20260627172825-0f6e32c177ee/go.mod h1:KrAZdAzcMj1XQkfDz5bp0hotVFUB2k9hRT+9F4b5f2E=
-github.com/gen2brain/go-fitz v1.24.14 h1:09weRkjVtLYNGo7l0J7DyOwBExbwi8SJ9h8YPhw9WEo=
+github.com/gen2brain/go-fitz v1.28.0 h1:RovqgQPAcOuyv5HZrWsTWl8qwlwbAHSKcAZXZUw0Vlk=
-github.com/gen2brain/go-fitz v1.24.14/go.mod h1:0KaZeQgASc20Yp5R/pFzyy7SmP01XcoHKNF842U2/S4=
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-github.com/gen2brain/go-unarr v0.2.4 h1:Iu2kqtGfkLBSQoTFwMkSCmp0g3GrEM/XMVWzo9TQr/Y=
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-github.com/gen2brain/go-unarr v0.2.4/go.mod h1:0kdy3HtjKBcEaewifXZguHCvt4qD9V8iJCx4FPEOWT8=
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-github.com/gen2brain/jpegli v0.3.3 h1:ryCOQpmGuVk6FA+QBe9st6cW48jsRdVOPiNrAJ50m+k=
+github.com/gen2brain/jpegn v0.4.2 h1:sxy2yolV1eNA02uYtnqBFm4EIC3ETnars98aG7Dc4LM=
-github.com/gen2brain/jpegli v0.3.3/go.mod h1:6Dbgr+ni1IUBqGVOKHn8lY+6DvwSGfAfC7pPQiSK6uA=
+github.com/gen2brain/jpegn v0.4.2/go.mod h1:YvcVOmVPSAsefH6yn9HBW3uY0EHlZwCMoiJXoAWfgL0=
-github.com/gen2brain/jpegxl v0.4.2 h1:Ff0jAWtCRdc9yjPc9jkyak6Ji/A89Jg0KI+D7qOEtRI=
+github.com/gen2brain/jpegxl v0.5.2 h1:1ou9YRziU8PbpkfFJIyxrNjYM+WaMl2n9LloABxkKsU=
-github.com/gen2brain/jpegxl v0.4.2/go.mod h1:zIIDnzh7WqG+z66zyzLWQ0M4AS5xi//pyJLgu32GB1o=
+github.com/gen2brain/jpegxl v0.5.2/go.mod h1:Wlc6lqx03RJfhiQRyHa2e+8VQwT4/qv7zSRsNv9T+yE=
-github.com/gen2brain/webp v0.5.1 h1:ly9olTGveZEpq3soJuCmex9fxLJ0ipHcQRRSRit5EUE=
+github.com/gen2brain/webp v0.6.1 h1:ei7Y1SWpQcdqz3YNDNyn4y2nQanxs9WLzwW5/2DKS64=
-github.com/gen2brain/webp v0.5.1/go.mod h1:Nb3xO5sy6MeUAHhru9H3GT7nlOQO5dKRNNlE92CZrJw=
+github.com/gen2brain/webp v0.6.1/go.mod h1:iGWMaCSw7t3I/Cv9llzEKmpnR36S8lS8VL/ZVjxU0JE=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
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@@ -46,57 +63,95 @@ github.com/go-errors/errors v1.5.1 h1:ZwEMSLRCapFLflTpT7NKaAc7ukJ8ZPEjzlxt8rPN8b
 github.com/go-errors/errors v1.5.1/go.mod h1:sIVyrIiJhuEF+Pj9Ebtd6P/rEYROXFi3BopGUQ5a5Og=
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 github.com/golang/geo v0.0.0-20200319012246-673a6f80352d/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
-github.com/golang/geo v0.0.0-20230421003525-6adc56603217 h1:HKlyj6in2JV6wVkmQ4XmG/EIm+SCYlPZ+V4GWit7Z+I=
+github.com/golang/geo v0.0.0-20260625163123-7c0e84413537 h1:KeIaDS/+VEy/bhDYjG3Z78dOyLAU4HXcVxmd0WYHJTE=
-github.com/golang/geo v0.0.0-20230421003525-6adc56603217/go.mod h1:8wI0hitZ3a1IxZfeH3/5I97CI8i5cLGsYe7xNhQGs9U=
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+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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+go4.org v0.0.0-20260112195520-a5071408f32f h1:ziUVAjmTPwQMBmYR1tbdRFJPtTcQUI12fH9QQjfb0Sw=
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 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/image v0.21.0 h1:c5qV36ajHpdj4Qi0GnE0jUc/yuo33OLFaa0d+crTD5s=
+golang.org/x/image v0.43.0 h1:FLxcP4ec2350nTfOC8ysKtqYSIFbk/QGjw1ZHNP4tsY=
-golang.org/x/image v0.21.0/go.mod h1:vUbsLavqK/W303ZroQQVKQ+Af3Yl6Uz1Ppu5J/cLz78=
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 golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200320220750-118fecf932d8/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
-golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4=
+golang.org/x/net v0.56.0 h1:Rw8j/hFzGvJUZwNBXnAtf5sVDVt+65SK2C7IxCxZt5o=
-golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
+golang.org/x/net v0.56.0/go.mod h1:D3Ku6r+V6JROoZK144D2XfMHFcMq/0zSfLelVTCFKec=
-golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
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-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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cmd/cbconvert/main.go

@@ -2,17 +2,22 @@ package main
 
 import (
 	"bufio"
+	"errors"
 	"flag"
 	"fmt"
 	"io"
 	"os"
 	"os/signal"
 	"path/filepath"
+	"runtime"
 	"runtime/debug"
+	"strconv"
+	"strings"
 	"syscall"
 
 	"github.com/gen2brain/cbconvert"
 	pb "github.com/schollz/progressbar/v3"
+	"golang.org/x/term"
 )
 
 var appVersion string
@@ -68,9 +73,9 @@ func main() {
 	if _, err := os.Stat(opts.OutDir); err != nil {
 		if err := os.MkdirAll(opts.OutDir, 0775); err != nil {
 			fmt.Println(err)
-		}
 			os.Exit(1)
 		}
+	}
 
 	files, err := conv.Files(args)
 	if err != nil {
@@ -78,40 +83,67 @@ func main() {
 		os.Exit(1)
 	}
 
+	interactive := !opts.Quiet && term.IsTerminal(int(os.Stderr.Fd()))
+
 	var bar *pb.ProgressBar
-	if opts.Cover || opts.Thumbnail || opts.Meta {
+	newBar := func(max int, description string) {
-		if !opts.Quiet {
+		bar = pb.NewOptions(max,
-			bar = pb.NewOptions(conv.Nfiles,
 			pb.OptionShowCount(),
 			pb.OptionClearOnFinish(),
 			pb.OptionUseANSICodes(true),
 			pb.OptionSetPredictTime(false),
+			pb.OptionSetDescription(description),
 		)
 	}
+
+	clearLine := func() {
+		fmt.Fprint(os.Stderr, "\033[2K\r")
+	}
+
+	cleanup := func() {
+		if interactive {
+			if bar != nil {
+				_ = bar.Finish()
+			}
+			clearLine()
+		}
+	}
+
+	if interactive && (opts.Cover || opts.Thumbnail || opts.Meta) {
+		newBar(conv.Nfiles, "")
 	}
 
 	conv.OnStart = func() {
-		if !opts.Quiet {
+		if interactive {
-			bar = pb.NewOptions(conv.Ncontents,
+			clearLine()
-				pb.OptionShowCount(),
+			newBar(conv.Ncontents, fmt.Sprintf("Converting %d of %d:", conv.CurrFile, conv.Nfiles))
-				pb.OptionClearOnFinish(),
-				pb.OptionUseANSICodes(true),
-				pb.OptionSetDescription(fmt.Sprintf("Converting %d of %d:", conv.CurrFile, conv.Nfiles)),
-				pb.OptionSetPredictTime(false),
-			)
 		}
 	}
 
 	conv.OnProgress = func() {
-		if !opts.Quiet {
+		if bar != nil {
 			_ = bar.Add(1)
 		}
 	}
 
 	conv.OnCompress = func() {
-		if !opts.Quiet {
+		if interactive {
-			fmt.Fprintf(os.Stderr, "Compressing %d of %d...\r", conv.CurrFile, conv.Nfiles)
+			if bar != nil {
+				_ = bar.Finish()
 			}
+			fmt.Fprintf(os.Stderr, "Compressing %d of %d...", conv.CurrFile, conv.Nfiles)
+		}
+	}
+
+	if opts.Combine {
+		if err := conv.Combine(files); err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		cleanup()
+
+		return
 	}
 
 	for _, file := range files {
@@ -131,14 +163,14 @@ func main() {
 
 			continue
 		case opts.Cover:
-			if err := conv.Cover(file.Path, file.Stat); err != nil {
+			if err := conv.Cover(file); err != nil {
 				fmt.Println(err)
 				os.Exit(1)
 			}
 
 			continue
 		case opts.Thumbnail:
-			if err = conv.Thumbnail(file.Path, file.Stat); err != nil {
+			if err = conv.Thumbnail(file); err != nil {
 				fmt.Println(err)
 				os.Exit(1)
 			}
@@ -146,13 +178,13 @@ func main() {
 			continue
 		}
 
-		if err := conv.Convert(file.Path, file.Stat); err != nil {
+		if err := conv.Convert(file); err != nil {
 			fmt.Println(err)
 			os.Exit(1)
 		}
 	}
 
-	fmt.Fprintf(os.Stderr, "\r")
+	cleanup()
 }
 
 // parseFlags parses command line flags.
@@ -160,50 +192,84 @@ func parseFlags() (cbconvert.Options, []string) {
 	opts := cbconvert.Options{}
 	var args []string
 
+	base := defaultOptions()
+	if len(os.Args) >= 2 {
+		switch os.Args[1] {
+		case "convert", "cover", "thumbnail":
+			if name := profileArg(os.Args[2:]); name != "" {
+				o, err := loadProfile(name)
+				if err != nil {
+					fmt.Println(err)
+					os.Exit(1)
+				}
+				base = o
+			}
+		}
+	}
+
+	var profile string
+	const profileUsage = "Load a saved GUI profile as defaults; explicit flags still override"
+
 	convert := flag.NewFlagSet("convert", flag.ExitOnError)
-	convert.IntVar(&opts.Width, "width", 0, "Image width")
+	convert.StringVar(&profile, "profile", "", profileUsage)
-	convert.IntVar(&opts.Height, "height", 0, "Image height")
+	convert.IntVar(&opts.Width, "width", base.Width, "Image width")
-	convert.BoolVar(&opts.Fit, "fit", false, "Best fit for required width and height")
+	convert.IntVar(&opts.Height, "height", base.Height, "Image height")
-	convert.StringVar(&opts.Format, "format", "jpeg", "Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl")
+	convert.BoolVar(&opts.Fit, "fit", base.Fit, "Best fit for required width and height")
-	convert.StringVar(&opts.Archive, "archive", "zip", "Archive format, valid values are zip, tar")
+	convert.BoolVar(&opts.NoUpscale, "no-upscale", base.NoUpscale, "Do not upscale images already smaller than the requested width/height")
-	convert.IntVar(&opts.Quality, "quality", 75, "Image quality")
+	convert.IntVar(&opts.DPI, "dpi", base.DPI, "Document rendering resolution in DPI (PDF, EPUB, etc.), 0 uses the original resolution")
-	convert.IntVar(&opts.Filter, "filter", 2, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos")
+	convert.StringVar(&opts.Format, "format", base.Format, "Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl")
-	convert.BoolVar(&opts.NoCover, "no-cover", false, "Do not convert the cover image")
+	convert.StringVar(&opts.Archive, "archive", base.Archive, "Archive format, valid values are zip, tar")
-	convert.BoolVar(&opts.NoRGB, "no-rgb", false, "Do not convert images that have RGB colorspace")
+	convert.IntVar(&opts.ZipLevel, "zip-level", base.ZipLevel, "ZIP compression level, 0 disables compression, 1-9 sets deflate level (1 fastest, 9 smallest), -1 uses the default")
-	convert.BoolVar(&opts.NoNonImage, "no-nonimage", false, "Remove non-image files from the archive")
+	convert.IntVar(&opts.Quality, "quality", base.Quality, "Image quality")
-	convert.BoolVar(&opts.NoConvert, "no-convert", false, "Do not transform or convert images")
+	convert.IntVar(&opts.Effort, "effort", base.Effort, "Encoder speed/effort, format-specific (webp method 0-6, avif speed 0-10, jxl effort 1-10), -1 uses the format default")
-	convert.BoolVar(&opts.Grayscale, "grayscale", false, "Convert images to grayscale (monochromatic)")
+	convert.BoolVar(&opts.Lossless, "lossless", base.Lossless, "Lossless compression (webp, avif, jxl), ignores quality")
-	convert.IntVar(&opts.Rotate, "rotate", 0, "Rotate images, valid values are 0, 90, 180, 270")
+	convert.BoolVar(&opts.Combine, "combine", base.Combine, "Combine all inputs into a single archive")
-	convert.IntVar(&opts.Brightness, "brightness", 0, "Adjust the brightness of the images, must be in the range (-100, 100)")
+	convert.StringVar(&opts.OutFile, "outfile", base.OutFile, "Output file name for --combine (default: first input + -combined)")
-	convert.IntVar(&opts.Contrast, "contrast", 0, "Adjust the contrast of the images, must be in the range (-100, 100)")
+	convert.IntVar(&opts.Filter, "filter", base.Filter, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 5=Gaussian, 6=Lanczos")
-	convert.StringVar(&opts.Suffix, "suffix", "", "Add suffix to file basename")
+	convert.BoolVar(&opts.NoCover, "no-cover", base.NoCover, "Do not convert the cover image")
-	convert.StringVar(&opts.OutDir, "outdir", ".", "Output directory")
+	convert.BoolVar(&opts.NoRGB, "no-rgb", base.NoRGB, "Do not convert images that have RGB colorspace")
-	convert.IntVar(&opts.Size, "size", 0, "Process only files larger than size (in MB)")
+	convert.BoolVar(&opts.NoNonImage, "no-nonimage", base.NoNonImage, "Remove non-image files from the archive")
-	convert.BoolVar(&opts.Recursive, "recursive", false, "Process subdirectories recursively")
+	convert.BoolVar(&opts.NoConvert, "no-convert", base.NoConvert, "Do not transform or convert images")
-	convert.BoolVar(&opts.Quiet, "quiet", false, "Hide console output")
+	convert.BoolVar(&opts.Grayscale, "grayscale", base.Grayscale, "Convert images to grayscale (monochromatic)")
+	convert.IntVar(&opts.Rotate, "rotate", base.Rotate, "Rotate images, valid values are 0, 90, 180, 270")
+	convert.IntVar(&opts.Brightness, "brightness", base.Brightness, "Adjust the brightness of the images, must be in the range (-100, 100)")
+	convert.IntVar(&opts.Contrast, "contrast", base.Contrast, "Adjust the contrast of the images, must be in the range (-100, 100)")
+	convert.StringVar(&opts.Suffix, "suffix", base.Suffix, "Add suffix to file basename")
+	convert.StringVar(&opts.OutDir, "outdir", base.OutDir, "Output directory")
+	convert.IntVar(&opts.Size, "size", base.Size, "Process only files larger than size (in MB)")
+	convert.BoolVar(&opts.Recursive, "recursive", base.Recursive, "Process subdirectories recursively")
+	convert.BoolVar(&opts.Quiet, "quiet", base.Quiet, "Hide console output")
 
 	cover := flag.NewFlagSet("cover", flag.ExitOnError)
-	cover.IntVar(&opts.Width, "width", 0, "Image width")
+	cover.StringVar(&profile, "profile", "", profileUsage)
-	cover.IntVar(&opts.Height, "height", 0, "Image height")
+	cover.IntVar(&opts.Width, "width", base.Width, "Image width")
-	cover.BoolVar(&opts.Fit, "fit", false, "Best fit for required width and height")
+	cover.IntVar(&opts.Height, "height", base.Height, "Image height")
-	cover.StringVar(&opts.Format, "format", "jpeg", "Image format, valid values are jpeg, png, tiff, bmp, webp, avif")
+	cover.BoolVar(&opts.Fit, "fit", base.Fit, "Best fit for required width and height")
-	cover.IntVar(&opts.Quality, "quality", 75, "Image quality")
+	cover.BoolVar(&opts.NoUpscale, "no-upscale", base.NoUpscale, "Do not upscale images already smaller than the requested width/height")
-	cover.IntVar(&opts.Filter, "filter", 2, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos")
+	cover.IntVar(&opts.DPI, "dpi", base.DPI, "Document rendering resolution in DPI (PDF, EPUB, etc.), 0 uses the original resolution")
-	cover.StringVar(&opts.OutDir, "outdir", ".", "Output directory")
+	cover.StringVar(&opts.Format, "format", base.Format, "Image format, valid values are jpeg, png, tiff, bmp, webp, avif")
-	cover.IntVar(&opts.Size, "size", 0, "Process only files larger than size (in MB)")
+	cover.IntVar(&opts.Quality, "quality", base.Quality, "Image quality")
-	cover.BoolVar(&opts.Recursive, "recursive", false, "Process subdirectories recursively")
+	cover.IntVar(&opts.Effort, "effort", base.Effort, "Encoder speed/effort, format-specific (webp method 0-6, avif speed 0-10, jxl effort 1-10), -1 uses the format default")
-	cover.BoolVar(&opts.Quiet, "quiet", false, "Hide console output")
+	cover.BoolVar(&opts.Lossless, "lossless", base.Lossless, "Lossless compression (webp, avif, jxl), ignores quality")
+	cover.IntVar(&opts.Filter, "filter", base.Filter, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 5=Gaussian, 6=Lanczos")
+	cover.StringVar(&opts.OutDir, "outdir", base.OutDir, "Output directory")
+	cover.IntVar(&opts.Size, "size", base.Size, "Process only files larger than size (in MB)")
+	cover.BoolVar(&opts.Recursive, "recursive", base.Recursive, "Process subdirectories recursively")
+	cover.BoolVar(&opts.Quiet, "quiet", base.Quiet, "Hide console output")
 
 	thumbnail := flag.NewFlagSet("thumbnail", flag.ExitOnError)
-	thumbnail.IntVar(&opts.Width, "width", 0, "Image width")
+	thumbnail.StringVar(&profile, "profile", "", profileUsage)
-	thumbnail.IntVar(&opts.Height, "height", 0, "Image height")
+	thumbnail.IntVar(&opts.Width, "width", base.Width, "Image width")
-	thumbnail.BoolVar(&opts.Fit, "fit", false, "Best fit for required width and height")
+	thumbnail.IntVar(&opts.Height, "height", base.Height, "Image height")
-	thumbnail.IntVar(&opts.Filter, "filter", 2, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos")
+	thumbnail.BoolVar(&opts.Fit, "fit", base.Fit, "Best fit for required width and height")
-	thumbnail.StringVar(&opts.OutDir, "outdir", ".", "Output directory")
+	thumbnail.BoolVar(&opts.NoUpscale, "no-upscale", base.NoUpscale, "Do not upscale images already smaller than the requested width/height")
-	thumbnail.StringVar(&opts.OutFile, "outfile", "", "Output file")
+	thumbnail.IntVar(&opts.DPI, "dpi", base.DPI, "Document rendering resolution in DPI (PDF, EPUB, etc.), 0 uses the original resolution")
-	thumbnail.IntVar(&opts.Size, "size", 0, "Process only files larger than size (in MB)")
+	thumbnail.IntVar(&opts.Filter, "filter", base.Filter, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 5=Gaussian, 6=Lanczos")
-	thumbnail.BoolVar(&opts.Recursive, "recursive", false, "Process subdirectories recursively")
+	thumbnail.StringVar(&opts.OutDir, "outdir", base.OutDir, "Output directory")
-	thumbnail.BoolVar(&opts.Quiet, "quiet", false, "Hide console output")
+	thumbnail.StringVar(&opts.OutFile, "outfile", base.OutFile, "Output file")
+	thumbnail.IntVar(&opts.Size, "size", base.Size, "Process only files larger than size (in MB)")
+	thumbnail.BoolVar(&opts.Recursive, "recursive", base.Recursive, "Process subdirectories recursively")
+	thumbnail.BoolVar(&opts.Quiet, "quiet", base.Quiet, "Hide console output")
 
 	meta := flag.NewFlagSet("meta", flag.ExitOnError)
 	meta.BoolVar(&opts.Cover, "cover", false, "Print cover name")
@@ -218,7 +284,7 @@ func parseFlags() (cbconvert.Options, []string) {
 		fmt.Fprintf(os.Stderr, "Usage: %s <command> [<flags>] [file1 dir1 ... fileOrDirN]\n\n", filepath.Base(os.Args[0]))
 		fmt.Fprintf(os.Stderr, "\nCommands:\n")
 		fmt.Fprintf(os.Stderr, "\n  convert\n    \tConvert archive or document\n\n")
-		order := []string{"width", "height", "fit", "format", "archive", "quality", "filter", "no-cover", "no-rgb",
+		order := []string{"profile", "width", "height", "fit", "no-upscale", "dpi", "format", "archive", "zip-level", "quality", "effort", "lossless", "combine", "outfile", "filter", "no-cover", "no-rgb",
 			"no-nonimage", "no-convert", "grayscale", "rotate", "brightness", "contrast", "suffix", "outdir", "size", "recursive", "quiet"}
 		for _, name := range order {
 			f := convert.Lookup(name)
@@ -226,14 +292,14 @@ func parseFlags() (cbconvert.Options, []string) {
 			fmt.Fprintf(os.Stderr, "%v (default %q)\n", f.Usage, f.DefValue)
 		}
 		fmt.Fprintf(os.Stderr, "\n  cover\n    \tExtract cover\n\n")
-		order = []string{"width", "height", "fit", "format", "quality", "filter", "outdir", "size", "recursive", "quiet"}
+		order = []string{"profile", "width", "height", "fit", "no-upscale", "dpi", "format", "quality", "effort", "lossless", "filter", "outdir", "size", "recursive", "quiet"}
 		for _, name := range order {
 			f := cover.Lookup(name)
 			fmt.Fprintf(os.Stderr, "    --%s\n    \t", f.Name)
 			fmt.Fprintf(os.Stderr, "%v (default %q)\n", f.Usage, f.DefValue)
 		}
 		fmt.Fprintf(os.Stderr, "\n  thumbnail\n    \tExtract cover thumbnail (freedesktop spec.)\n\n")
-		order = []string{"width", "height", "fit", "filter", "outdir", "outfile", "size", "recursive", "quiet"}
+		order = []string{"profile", "width", "height", "fit", "no-upscale", "dpi", "filter", "outdir", "outfile", "size", "recursive", "quiet"}
 		for _, name := range order {
 			f := thumbnail.Lookup(name)
 			fmt.Fprintf(os.Stderr, "    --%s\n    \t", f.Name)
@@ -262,27 +328,27 @@ func parseFlags() (cbconvert.Options, []string) {
 
 	switch os.Args[1] {
 	case "convert":
-		_ = convert.Parse(os.Args[2:])
+		operands := parseArgs(convert, os.Args[2:])
 		if !pipe {
-			args = convert.Args()
+			args = operands
 		}
 	case "cover":
 		opts.Cover = true
-		_ = cover.Parse(os.Args[2:])
+		operands := parseArgs(cover, os.Args[2:])
 		if !pipe {
-			args = cover.Args()
+			args = operands
 		}
 	case "thumbnail":
 		opts.Thumbnail = true
-		_ = thumbnail.Parse(os.Args[2:])
+		operands := parseArgs(thumbnail, os.Args[2:])
 		if !pipe {
-			args = thumbnail.Args()
+			args = operands
 		}
 	case "meta":
 		opts.Meta = true
-		_ = meta.Parse(os.Args[2:])
+		operands := parseArgs(meta, os.Args[2:])
 		if !pipe {
-			args = meta.Args()
+			args = operands
 		}
 	case "version":
 		opts.Version = true
@@ -297,7 +363,20 @@ func parseFlags() (cbconvert.Options, []string) {
 	return opts, args
 }
 
-// piped checks if we have a piped stdin.
+// parseArgs parses flags interspersed with file/dir operands.
+func parseArgs(fs *flag.FlagSet, args []string) []string {
+	var operands []string
+
+	_ = fs.Parse(args)
+	for fs.NArg() > 0 {
+		operands = append(operands, fs.Arg(0))
+		_ = fs.Parse(fs.Args()[1:])
+	}
+
+	return operands
+}
+
+// piped checks if we have piped stdin.
 func piped() bool {
 	f, err := os.Stdin.Stat()
 	if err != nil {
@@ -311,7 +390,7 @@ func piped() bool {
 	return true
 }
 
-// lines returns slice of lines from reader.
+// lines returns slice of lines from the reader.
 func lines(r io.Reader) []string {
 	data := make([]string, 0)
 	scanner := bufio.NewScanner(r)
@@ -323,3 +402,229 @@ func lines(r io.Reader) []string {
 
 	return data
 }
+
+// configPath returns the IupConfig file the GUI writes, matching IUP's per-platform location for APPNAME "cbconvert".
+func configPath() (string, error) {
+	if runtime.GOOS == "windows" {
+		dir := os.Getenv("LocalAppData")
+		if dir == "" {
+			return "", errors.New("configPath: LocalAppData is not set")
+		}
+
+		return filepath.Join(dir, "cbconvert", "config.cfg"), nil
+	}
+
+	dir, err := os.UserConfigDir()
+	if err != nil {
+		return "", fmt.Errorf("configPath: %w", err)
+	}
+
+	return filepath.Join(dir, "cbconvert", "config"), nil
+}
+
+// parseINI reads a simple INI file into section -> key -> value.
+func parseINI(path string) (map[string]map[string]string, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	sections := make(map[string]map[string]string)
+	var cur map[string]string
+
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		line := strings.TrimSpace(sc.Text())
+		if line == "" || strings.HasPrefix(line, ";") || strings.HasPrefix(line, "#") {
+			continue
+		}
+
+		if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
+			cur = make(map[string]string)
+			sections[line[1:len(line)-1]] = cur
+
+			continue
+		}
+
+		if cur == nil {
+			continue
+		}
+
+		if k, v, ok := strings.Cut(line, "="); ok {
+			cur[strings.TrimSpace(k)] = strings.TrimSpace(v)
+		}
+	}
+
+	if err := sc.Err(); err != nil {
+		return nil, err
+	}
+
+	return sections, nil
+}
+
+// defaultOptions returns the convert defaults used when no profile is loaded.
+func defaultOptions() cbconvert.Options {
+	o := cbconvert.NewOptions()
+	o.OutDir = "."
+
+	return o
+}
+
+// loadProfile reads the named GUI profile and translates its control values into Options.
+func loadProfile(name string) (cbconvert.Options, error) {
+	o := defaultOptions()
+
+	path, err := configPath()
+	if err != nil {
+		return o, fmt.Errorf("loadProfile: %w", err)
+	}
+
+	ini, err := parseINI(path)
+	if err != nil {
+		return o, fmt.Errorf("loadProfile: %w", err)
+	}
+
+	sec, ok := ini["Profile:"+name]
+	if !ok {
+		return o, fmt.Errorf("loadProfile: profile %q not found in %s%s", name, path, knownProfiles(ini))
+	}
+
+	str := func(key string, set func(string)) {
+		if v, ok := sec[key]; ok {
+			set(v)
+		}
+	}
+	boolean := func(key string, set func(bool)) {
+		if v, ok := sec[key]; ok {
+			set(v == "1")
+		}
+	}
+	integer := func(key string, set func(int)) {
+		if v, ok := sec[key]; ok {
+			if n, err := strconv.Atoi(v); err == nil {
+				set(n)
+			}
+		}
+	}
+
+	integer("Width", func(n int) { o.Width = n })
+	integer("Height", func(n int) { o.Height = n })
+	boolean("Fit", func(b bool) { o.Fit = b })
+	boolean("NoUpscale", func(b bool) { o.NoUpscale = b })
+	str("DPI", func(v string) { o.DPI = dpiFromString(v) })
+	str("Format", func(v string) { o.Format = formatFromIndex(v) })
+	str("Archive", func(v string) { o.Archive = archiveFromIndex(v) })
+	str("ZipLevel", func(v string) { o.ZipLevel = zipLevelFromIndex(v) })
+	integer("Quality", func(n int) { o.Quality = n })
+	integer("Effort", func(n int) { o.Effort = n })
+	boolean("Lossless", func(b bool) { o.Lossless = b })
+	boolean("Combine", func(b bool) { o.Combine = b })
+	integer("Filter", func(n int) { o.Filter = n - 1 })
+	boolean("NoCover", func(b bool) { o.NoCover = b })
+	boolean("NoRGB", func(b bool) { o.NoRGB = b })
+	boolean("NoNonImage", func(b bool) { o.NoNonImage = b })
+	boolean("NoConvert", func(b bool) { o.NoConvert = b })
+	boolean("Grayscale", func(b bool) { o.Grayscale = b })
+	str("Rotate", func(v string) { o.Rotate = rotateFromIndex(v) })
+	integer("Brightness", func(n int) { o.Brightness = n })
+	integer("Contrast", func(n int) { o.Contrast = n })
+	str("Suffix", func(v string) { o.Suffix = v })
+	str("OutDir", func(v string) { o.OutDir = v })
+	integer("Size", func(n int) { o.Size = n })
+	boolean("Recursive", func(b bool) { o.Recursive = b })
+
+	// Effort is format-specific in the GUI: only webp/avif/jxl use the slider, others fall back to the format default.
+	switch o.Format {
+	case "webp", "avif", "jxl":
+	default:
+		o.Effort = -1
+	}
+
+	return o, nil
+}
+
+// knownProfiles lists the profile names from the config, for a helpful "not found" message.
+func knownProfiles(ini map[string]map[string]string) string {
+	if p, ok := ini["Profiles"]; ok {
+		if names := p["Names"]; names != "" {
+			return "\navailable profiles: " + strings.ReplaceAll(names, ";", ", ")
+		}
+	}
+
+	return ""
+}
+
+// profileArg extracts the --profile value from args, since it must be known before flag defaults are built.
+func profileArg(args []string) string {
+	for i := 0; i < len(args); i++ {
+		if args[i] == "--profile" || args[i] == "-profile" {
+			if i+1 < len(args) {
+				return args[i+1]
+			}
+
+			return ""
+		}
+
+		for _, pfx := range []string{"--profile=", "-profile="} {
+			if v, ok := strings.CutPrefix(args[i], pfx); ok {
+				return v
+			}
+		}
+	}
+
+	return ""
+}
+
+// The index translations below mirror the GUI dropdown encodings stored in the profile.
+
+func dpiFromString(s string) int {
+	n, err := strconv.Atoi(strings.TrimSpace(s))
+	if err != nil {
+		return 0
+	}
+
+	return n
+}
+
+var profileFormats = []string{"jpeg", "png", "tiff", "bmp", "webp", "avif", "jxl"}
+
+func formatFromIndex(s string) string {
+	if i, _ := strconv.Atoi(s); i >= 1 && i <= len(profileFormats) {
+		return profileFormats[i-1]
+	}
+
+	return "jpeg"
+}
+
+func archiveFromIndex(s string) string {
+	if s == "2" {
+		return "tar"
+	}
+
+	return "zip"
+}
+
+func zipLevelFromIndex(s string) int {
+	switch i, _ := strconv.Atoi(s); i {
+	case 1:
+		return -1
+	case 2:
+		return 0
+	default:
+		return i - 2
+	}
+}
+
+func rotateFromIndex(s string) int {
+	switch s {
+	case "2":
+		return 90
+	case "3":
+		return 180
+	case "4":
+		return 270
+	default:
+		return 0
+	}
+}

cmd/cbconvert/main_test.go

@@ -0,0 +1,160 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+	"testing"
+)
+
+func TestProfileArg(t *testing.T) {
+	cases := []struct {
+		args []string
+		want string
+	}{
+		{[]string{"--profile", "webp", "a.cbz"}, "webp"},
+		{[]string{"--profile=webp", "a.cbz"}, "webp"},
+		{[]string{"-profile", "webp"}, "webp"},
+		{[]string{"-profile=webp"}, "webp"},
+		{[]string{"--width", "800", "--profile", "x", "a.cbz"}, "x"},
+		{[]string{"--width", "800", "a.cbz"}, ""},
+		{[]string{"--profile"}, ""},
+	}
+
+	for _, c := range cases {
+		if got := profileArg(c.args); got != c.want {
+			t.Errorf("profileArg(%v) = %q, want %q", c.args, got, c.want)
+		}
+	}
+}
+
+func TestIndexTranslations(t *testing.T) {
+	if got := formatFromIndex("5"); got != "webp" {
+		t.Errorf("formatFromIndex(5) = %q, want webp", got)
+	}
+	if got := formatFromIndex("1"); got != "jpeg" {
+		t.Errorf("formatFromIndex(1) = %q, want jpeg", got)
+	}
+	if got := formatFromIndex("99"); got != "jpeg" {
+		t.Errorf("formatFromIndex(99) = %q, want jpeg fallback", got)
+	}
+	if got := archiveFromIndex("2"); got != "tar" {
+		t.Errorf("archiveFromIndex(2) = %q, want tar", got)
+	}
+	if got := archiveFromIndex("1"); got != "zip" {
+		t.Errorf("archiveFromIndex(1) = %q, want zip", got)
+	}
+
+	zip := map[string]int{"1": -1, "2": 0, "3": 1, "11": 9}
+	for in, want := range zip {
+		if got := zipLevelFromIndex(in); got != want {
+			t.Errorf("zipLevelFromIndex(%s) = %d, want %d", in, got, want)
+		}
+	}
+
+	rot := map[string]int{"1": 0, "2": 90, "3": 180, "4": 270}
+	for in, want := range rot {
+		if got := rotateFromIndex(in); got != want {
+			t.Errorf("rotateFromIndex(%s) = %d, want %d", in, got, want)
+		}
+	}
+
+	if got := dpiFromString("Default"); got != 0 {
+		t.Errorf("dpiFromString(Default) = %d, want 0", got)
+	}
+	if got := dpiFromString("150"); got != 150 {
+		t.Errorf("dpiFromString(150) = %d, want 150", got)
+	}
+}
+
+func TestParseINI(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "config")
+	data := "[Profiles]\nNames=Default;webp\n\n[Profile:webp]\nFormat=5\nQuality=90\n"
+	if err := os.WriteFile(path, []byte(data), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	ini, err := parseINI(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if ini["Profile:webp"]["Format"] != "5" {
+		t.Errorf("Format = %q, want 5", ini["Profile:webp"]["Format"])
+	}
+	if ini["Profiles"]["Names"] != "Default;webp" {
+		t.Errorf("Names = %q", ini["Profiles"]["Names"])
+	}
+}
+
+func TestLoadProfile(t *testing.T) {
+	if runtime.GOOS != "linux" {
+		t.Skip("config path override via XDG_CONFIG_HOME is Linux-specific")
+	}
+
+	dir := t.TempDir()
+	if err := os.MkdirAll(filepath.Join(dir, "cbconvert"), 0755); err != nil {
+		t.Fatal(err)
+	}
+	data := "[Profile:webp]\nFormat=5\nQuality=90\nEffort=4\nArchive=2\nWidth=800\nFit=1\nFilter=7\nRotate=2\n"
+	if err := os.WriteFile(filepath.Join(dir, "cbconvert", "config"), []byte(data), 0644); err != nil {
+		t.Fatal(err)
+	}
+	t.Setenv("XDG_CONFIG_HOME", dir)
+
+	o, err := loadProfile("webp")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if o.Format != "webp" {
+		t.Errorf("Format = %q, want webp", o.Format)
+	}
+	if o.Quality != 90 {
+		t.Errorf("Quality = %d, want 90", o.Quality)
+	}
+	if o.Effort != 4 {
+		t.Errorf("Effort = %d, want 4 (webp keeps the slider value)", o.Effort)
+	}
+	if o.Archive != "tar" {
+		t.Errorf("Archive = %q, want tar", o.Archive)
+	}
+	if o.Width != 800 || !o.Fit {
+		t.Errorf("Width/Fit = %d/%v, want 800/true", o.Width, o.Fit)
+	}
+	if o.Filter != 6 {
+		t.Errorf("Filter = %d, want 6 (GUI index 7 - 1)", o.Filter)
+	}
+	if o.Rotate != 90 {
+		t.Errorf("Rotate = %d, want 90", o.Rotate)
+	}
+
+	if _, err := loadProfile("missing"); err == nil {
+		t.Error("loadProfile(missing) should error")
+	}
+}
+
+func TestLoadProfileEffortGate(t *testing.T) {
+	if runtime.GOOS != "linux" {
+		t.Skip("config path override via XDG_CONFIG_HOME is Linux-specific")
+	}
+
+	dir := t.TempDir()
+	if err := os.MkdirAll(filepath.Join(dir, "cbconvert"), 0755); err != nil {
+		t.Fatal(err)
+	}
+	// Format=1 (jpeg) with a stored Effort must collapse to -1, mirroring the GUI.
+	data := "[Profile:jpeg]\nFormat=1\nEffort=4\n"
+	if err := os.WriteFile(filepath.Join(dir, "cbconvert", "config"), []byte(data), 0644); err != nil {
+		t.Fatal(err)
+	}
+	t.Setenv("XDG_CONFIG_HOME", dir)
+
+	o, err := loadProfile("jpeg")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if o.Effort != -1 {
+		t.Errorf("Effort = %d, want -1 for non-effort format", o.Effort)
+	}
+}

go.mod

@@ -1,32 +1,52 @@
 module github.com/gen2brain/cbconvert
 
-go 1.23
+go 1.26
 
 require (
-	github.com/anthonynsimon/bild v0.14.0
+	github.com/anthonynsimon/bild v0.15.0
 	github.com/dsoprea/go-png-image-structure v0.0.0-20210512210324-29b889a6093d
 	github.com/dustin/go-humanize v1.0.1
 	github.com/fvbommel/sortorder v1.1.0
-	github.com/gen2brain/avif v0.4.1
+	github.com/gen2brain/avif v0.5.1
-	github.com/gen2brain/go-fitz v1.24.14
+	github.com/gen2brain/go-fitz v1.28.1
-	github.com/gen2brain/go-unarr v0.2.3
+	github.com/gen2brain/jpegli v0.4.1
-	github.com/gen2brain/jpegli v0.3.3
+	github.com/gen2brain/jpegxl v0.5.2
-	github.com/gen2brain/jpegxl v0.4.2
+	github.com/gen2brain/webp v0.6.1
-	github.com/gen2brain/webp v0.5.1
 	github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25
-	golang.org/x/image v0.21.0
+	github.com/mholt/archives v0.1.5
-	golang.org/x/sync v0.8.0
+	golang.org/x/image v0.43.0
+	golang.org/x/sync v0.21.0
 )
 
 require (
+	github.com/STARRY-S/zip v0.2.3 // indirect
+	github.com/andybalholm/brotli v1.2.1 // indirect
+	github.com/bodgit/plumbing v1.3.0 // indirect
+	github.com/bodgit/sevenzip v1.6.4 // indirect
+	github.com/bodgit/windows v1.0.1 // indirect
+	github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 // indirect
 	github.com/dsoprea/go-exif/v2 v2.0.0-20230826092837-6579e82b732d // indirect
 	github.com/dsoprea/go-logging v0.0.0-20200710184922-b02d349568dd // indirect
 	github.com/dsoprea/go-utility v0.0.0-20221003172846-a3e1774ef349 // indirect
-	github.com/ebitengine/purego v0.8.1 // indirect
+	github.com/ebitengine/purego v0.10.1 // indirect
+	github.com/gen2brain/jpegn v0.4.2
 	github.com/go-errors/errors v1.5.1 // indirect
-	github.com/golang/geo v0.0.0-20230421003525-6adc56603217 // indirect
+	github.com/golang/geo v0.0.0-20260625163123-7c0e84413537 // indirect
-	github.com/jupiterrider/ffi v0.2.1 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
-	github.com/tetratelabs/wazero v1.8.1 // indirect
+	github.com/klauspost/compress v1.18.6 // indirect
-	golang.org/x/net v0.30.0 // indirect
+	github.com/klauspost/pgzip v1.2.6 // indirect
+	github.com/mikelolasagasti/xz v1.0.1 // indirect
+	github.com/minio/minlz v1.1.1 // indirect
+	github.com/nwaples/rardecode/v2 v2.2.5 // indirect
+	github.com/pierrec/lz4/v4 v4.1.27 // indirect
+	github.com/sorairolake/lzip-go v0.3.8 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/stangelandcl/ppmd v0.1.1 // indirect
+	github.com/tetratelabs/wazero v1.12.0 // indirect
+	github.com/ulikunitz/xz v0.5.15 // indirect
+	go4.org v0.0.0-20260112195520-a5071408f32f // indirect
+	golang.org/x/net v0.56.0 // indirect
+	golang.org/x/sys v0.46.0 // indirect
+	golang.org/x/text v0.38.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )

go.sum

@@ -1,5 +1,21 @@
-github.com/anthonynsimon/bild v0.14.0 h1:IFRkmKdNdqmexXHfEU7rPlAmdUZ8BDZEGtGHDnGWync=
+github.com/STARRY-S/zip v0.2.3 h1:luE4dMvRPDOWQdeDdUxUoZkzUIpTccdKdhHHsQJ1fm4=
-github.com/anthonynsimon/bild v0.14.0/go.mod h1:hcvEAyBjTW69qkKJTfpcDQ83sSZHxwOunsseDfeQhUs=
+github.com/STARRY-S/zip v0.2.3/go.mod h1:lqJ9JdeRipyOQJrYSOtpNAiaesFO6zVDsE8GIGFaoSk=
+github.com/andybalholm/brotli v1.2.1 h1:R+f5xP285VArJDRgowrfb9DqL18yVK0gKAW/F+eTWro=
+github.com/andybalholm/brotli v1.2.1/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
+github.com/anthonynsimon/bild v0.15.0 h1:FzvaNLuNlAPKw1Xz7V2WYOcGIEBMj8Y6ZyAk7CI+HzA=
+github.com/anthonynsimon/bild v0.15.0/go.mod h1:qIgJ9FldkCn0iy5Ad24fzUkz5R+iJ0WfhiV+6FeCB5A=
+github.com/bodgit/plumbing v1.3.0 h1:pf9Itz1JOQgn7vEOE7v7nlEfBykYqvUYioC61TwWCFU=
+github.com/bodgit/plumbing v1.3.0/go.mod h1:JOTb4XiRu5xfnmdnDJo6GmSbSbtSyufrsyZFByMtKEs=
+github.com/bodgit/sevenzip v1.6.4 h1:iHiVJfxbrB6RF4X+snI2MpVgNBKmVfGaTqZGNlMQIU0=
+github.com/bodgit/sevenzip v1.6.4/go.mod h1:ZtNi5KNgHXeXg1G7WiF0IWSuFE2eG6lt/cTGlvuirO0=
+github.com/bodgit/windows v1.0.1 h1:tF7K6KOluPYygXa3Z2594zxlkbKPAOvqr97etrGNIz4=
+github.com/bodgit/windows v1.0.1/go.mod h1:a6JLwrB4KrTR5hBpp8FI9/9W9jJfeQ2h4XDXU74ZCdM=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 h1:2tV76y6Q9BB+NEBasnqvs7e49aEBFI8ejC89PSnWH+4=
+github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707/go.mod h1:qssHWj60/X5sZFNxpG4HBPDHVqxNm4DfnCKgrbZOT+s=
+github.com/dsnet/golib v0.0.0-20171103203638-1ea166775780/go.mod h1:Lj+Z9rebOhdfkVLjJ8T6VcRQv3SXugXy999NBtR9aFY=
 github.com/dsoprea/go-exif/v2 v2.0.0-20200321225314-640175a69fe4/go.mod h1:Lm2lMM2zx8p4a34ZemkaUV95AnMl4ZvLbCUbwOvLC2E=
 github.com/dsoprea/go-exif/v2 v2.0.0-20200604193436-ca8584a0e1c4/go.mod h1:9EXlPeHfblFFnwu5UOqmP2eoZfJyAZ2Ri/Vki33ajO0=
 github.com/dsoprea/go-exif/v2 v2.0.0-20230826092837-6579e82b732d h1:yeH8wrJa3+8uKKDAdURHUK1ds2UvKhMqX2MiOdVeKPs=
@@ -18,28 +34,22 @@ github.com/dsoprea/go-utility v0.0.0-20221003172846-a3e1774ef349/go.mod h1:KVK+/
 github.com/dsoprea/go-utility/v2 v2.0.0-20200717064901-2fccff4aa15e/go.mod h1:uAzdkPTub5Y9yQwXe8W4m2XuP0tK4a9Q/dantD0+uaU=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/ebitengine/purego v0.8.1 h1:sdRKd6plj7KYW33EH5As6YKfe8m9zbN9JMrOjNVF/BE=
+github.com/ebitengine/purego v0.10.1 h1:dewVBCBT2GaMu1SrNTYxQhgQBethzfhiwvZiLGP/qyY=
-github.com/ebitengine/purego v0.8.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/ebitengine/purego v0.10.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQmYw=
 github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
-github.com/gen2brain/avif v0.4.0 h1:JuwAX2rVrkAzQrZx9lpIKx/ovCO35gCUquarfJ6uhHc=
+github.com/gen2brain/avif v0.5.1 h1:LQzLsJpWyGlsa4wuZ3D57qEbCiICIK7Yidz5ZPEwzTk=
-github.com/gen2brain/avif v0.4.0/go.mod h1:oePci7KPleKZ8X/2rjZ3FlVm2JFYjPwXiQpNgq9wrzs=
+github.com/gen2brain/avif v0.5.1/go.mod h1:QgrYqdVE9y40PCfArK9VakcMIpYeDYpZmCSLkW6C1n8=
-github.com/gen2brain/avif v0.4.1 h1:fjwv5SDNYHdI1gbW6MJn3Yaxs1ldUEfAIAH8Ahee538=
+github.com/gen2brain/go-fitz v1.28.1 h1:ToEYb2vN4ByaL2VmRNGk92Sa1UAkCn8bsObpA3WkQ48=
-github.com/gen2brain/avif v0.4.1/go.mod h1:oePci7KPleKZ8X/2rjZ3FlVm2JFYjPwXiQpNgq9wrzs=
+github.com/gen2brain/go-fitz v1.28.1/go.mod h1:pY2hqAjp9Zy7qfPI2gwbJMHBFAdZpVXOLrRxD82l3Bs=
-github.com/gen2brain/go-fitz v1.24.14 h1:09weRkjVtLYNGo7l0J7DyOwBExbwi8SJ9h8YPhw9WEo=
+github.com/gen2brain/jpegli v0.4.1 h1:qc11IQU0jTYFltroulT4MXmbu9YRftqHV0YBZ0Bqz5o=
-github.com/gen2brain/go-fitz v1.24.14/go.mod h1:0KaZeQgASc20Yp5R/pFzyy7SmP01XcoHKNF842U2/S4=
+github.com/gen2brain/jpegli v0.4.1/go.mod h1:zJ++s4symmKCN1CLkrY0dGXTY3s0NWbd94Rz9KLdCzk=
-github.com/gen2brain/go-unarr v0.2.3 h1:VwZg0P6Dc/8Uh51McjVhzUMg4wHwwbiyqjEFsFELc0c=
+github.com/gen2brain/jpegn v0.4.2 h1:sxy2yolV1eNA02uYtnqBFm4EIC3ETnars98aG7Dc4LM=
-github.com/gen2brain/go-unarr v0.2.3/go.mod h1:hoHheVuf0KT8/hfvkEL7GMwj2h7fq0lF72NdyySdr3c=
+github.com/gen2brain/jpegn v0.4.2/go.mod h1:YvcVOmVPSAsefH6yn9HBW3uY0EHlZwCMoiJXoAWfgL0=
-github.com/gen2brain/jpegli v0.3.3 h1:ryCOQpmGuVk6FA+QBe9st6cW48jsRdVOPiNrAJ50m+k=
+github.com/gen2brain/jpegxl v0.5.2 h1:1ou9YRziU8PbpkfFJIyxrNjYM+WaMl2n9LloABxkKsU=
-github.com/gen2brain/jpegli v0.3.3/go.mod h1:6Dbgr+ni1IUBqGVOKHn8lY+6DvwSGfAfC7pPQiSK6uA=
+github.com/gen2brain/jpegxl v0.5.2/go.mod h1:Wlc6lqx03RJfhiQRyHa2e+8VQwT4/qv7zSRsNv9T+yE=
-github.com/gen2brain/jpegxl v0.4.1 h1:jWaVp5GkXLJXjRvC+g0R9+uo+xoWiS7DYKxJ3n5gHL4=
+github.com/gen2brain/webp v0.6.1 h1:ei7Y1SWpQcdqz3YNDNyn4y2nQanxs9WLzwW5/2DKS64=
-github.com/gen2brain/jpegxl v0.4.1/go.mod h1:zIIDnzh7WqG+z66zyzLWQ0M4AS5xi//pyJLgu32GB1o=
+github.com/gen2brain/webp v0.6.1/go.mod h1:iGWMaCSw7t3I/Cv9llzEKmpnR36S8lS8VL/ZVjxU0JE=
-github.com/gen2brain/jpegxl v0.4.2 h1:Ff0jAWtCRdc9yjPc9jkyak6Ji/A89Jg0KI+D7qOEtRI=
-github.com/gen2brain/jpegxl v0.4.2/go.mod h1:zIIDnzh7WqG+z66zyzLWQ0M4AS5xi//pyJLgu32GB1o=
-github.com/gen2brain/webp v0.5.0 h1:nn3o0BtKltoFKX9rlDZG/Y/aWqNzUZVyXdB815yVNfU=
-github.com/gen2brain/webp v0.5.0/go.mod h1:Nb3xO5sy6MeUAHhru9H3GT7nlOQO5dKRNNlE92CZrJw=
-github.com/gen2brain/webp v0.5.1 h1:ly9olTGveZEpq3soJuCmex9fxLJ0ipHcQRRSRit5EUE=
-github.com/gen2brain/webp v0.5.1/go.mod h1:Nb3xO5sy6MeUAHhru9H3GT7nlOQO5dKRNNlE92CZrJw=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-errors/errors v1.0.2/go.mod h1:psDX2osz5VnTOnFWbDeWwS7yejl+uV3FEWEp4lssFEs=
 github.com/go-errors/errors v1.1.1/go.mod h1:psDX2osz5VnTOnFWbDeWwS7yejl+uV3FEWEp4lssFEs=
@@ -47,33 +57,85 @@ github.com/go-errors/errors v1.5.1 h1:ZwEMSLRCapFLflTpT7NKaAc7ukJ8ZPEjzlxt8rPN8b
 github.com/go-errors/errors v1.5.1/go.mod h1:sIVyrIiJhuEF+Pj9Ebtd6P/rEYROXFi3BopGUQ5a5Og=
 github.com/golang/geo v0.0.0-20190916061304-5b978397cfec/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
 github.com/golang/geo v0.0.0-20200319012246-673a6f80352d/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
-github.com/golang/geo v0.0.0-20230421003525-6adc56603217 h1:HKlyj6in2JV6wVkmQ4XmG/EIm+SCYlPZ+V4GWit7Z+I=
+github.com/golang/geo v0.0.0-20260625163123-7c0e84413537 h1:KeIaDS/+VEy/bhDYjG3Z78dOyLAU4HXcVxmd0WYHJTE=
-github.com/golang/geo v0.0.0-20230421003525-6adc56603217/go.mod h1:8wI0hitZ3a1IxZfeH3/5I97CI8i5cLGsYe7xNhQGs9U=
+github.com/golang/geo v0.0.0-20260625163123-7c0e84413537/go.mod h1:Mymr9kRGDc64JPr03TSZmuIBODZ3KyswLzm1xL0HFA8=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
+github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
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 github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25/go.mod h1:kLgvv7o6UM+0QSf0QjAse3wReFDsb9qbZJdfexWlrQw=
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+github.com/klauspost/compress v1.4.1/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
-github.com/jupiterrider/ffi v0.2.1/go.mod h1:tJ7Q8p/3blFjdWt5qJU4W5oDE0xloImvrViE+0td0Rk=
+github.com/klauspost/compress v1.18.6 h1:2jupLlAwFm95+YDR+NwD2MEfFO9d4z4Prjl1XXDjuao=
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-github.com/tetratelabs/wazero v1.8.1/go.mod h1:yAI0XTsMBhREkM/YDAK/zNou3GoiAce1P6+rp/wQhjs=
+github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
+github.com/klauspost/pgzip v1.2.6 h1:8RXeL5crjEUFnR2/Sn6GJNWtSQ3Dk8pq4CL3jvdDyjU=
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+github.com/nwaples/rardecode/v2 v2.2.5 h1:L5doqgGfQwI7qADJMqnkrSB86rpPsqQDrHeO0HWa5JY=
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+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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go.work

@@ -0,0 +1,7 @@
+go 1.26
+
+use (
+	.
+	./cmd/cbconvert
+	./cmd/cbconvert-gui
+)

go.work.sum

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