Fix comic chapters, issue #50

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` and `libunarr` libraries
+* `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 +56,117 @@ 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 archive or document
+  convert
+    	Convert archive or document
 
-        --width
-            Image width (default "0")
-        --height
-            Image height (default "0")
-        --fit
-            Best fit for required width and height (default "false")
-        --format
-            Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl (default "jpeg")
-        --archive
-            Archive format, valid values are zip, tar (default "zip")
-        --quality
-            Image quality (default "75")
-        --filter
-            0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
-        --no-cover
-            Do not convert the cover image (default "false")
-        --no-rgb
-            Do not convert images that have RGB colorspace (default "false")
-        --no-nonimage
-            Remove non-image files from the archive (default "false")
-        --no-convert
-            Do not transform or convert images (default "false")
-        --grayscale
-            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")
+    --width
+    	Image width (default "0")
+    --height
+    	Image height (default "0")
+    --fit
+    	Best fit for required width and height (default "false")
+    --format
+    	Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl (default "jpeg")
+    --archive
+    	Archive format, valid values are zip, tar (default "zip")
+    --quality
+    	Image quality (default "75")
+    --filter
+    	0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
+    --no-cover
+    	Do not convert the cover image (default "false")
+    --no-rgb
+    	Do not convert images that have RGB colorspace (default "false")
+    --no-nonimage
+    	Remove non-image files from the archive (default "false")
+    --no-convert
+    	Do not transform or convert images (default "false")
+    --grayscale
+    	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
-            Extract cover
+  cover
+    	Extract cover
 
-        --width
-            Image width (default "0")
-        --height
-            Image height (default "0")
-        --fit
-            Best fit for required width and height (default "false")
-        --format
-            Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl (default "jpeg")
-        --quality
-            Image quality (default "75")
-        --filter
-            0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=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")
+    --width
+    	Image width (default "0")
+    --height
+    	Image height (default "0")
+    --fit
+    	Best fit for required width and height (default "false")
+    --format
+    	Image format, valid values are jpeg, png, tiff, bmp, webp, avif (default "jpeg")
+    --quality
+    	Image quality (default "75")
+    --filter
+    	0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=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
-            Extract cover thumbnail (freedesktop spec.)
+  thumbnail
+    	Extract cover thumbnail (freedesktop spec.)
 
-        --width
-            Image width (default "0")
-        --height
-            Image height (default "0")
-        --fit
-            Best fit for required width and height (default "false")
-        --filter
-            0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
-        --outdir
-            Output directory (default ".")
-        --outfile
-            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")
+    --width
+    	Image width (default "0")
+    --height
+    	Image height (default "0")
+    --fit
+    	Best fit for required width and height (default "false")
+    --filter
+    	0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
+    --outdir
+    	Output directory (default ".")
+    --outfile
+    	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
-            CBZ metadata
+  meta
+    	CBZ metadata
 
-        --cover
-            Print cover name (default "false")
-        --comment
-            Print zip comment (default "false")
-        --comment-body
-            Set zip comment (default "")
-        --file-add
-            Add file to archive (default "")
-        --file-remove
-            Remove file(s) from archive (glob pattern, i.e. *.xml) (default "")
+    --cover
+    	Print cover name (default "false")
+    --comment
+    	Print zip comment (default "false")
+    --comment-body
+    	Set zip comment (default "")
+    --file-add
+    	Add file to archive (default "")
+    --file-remove
+    	Remove file from archive (glob pattern, i.e. *.xml) (default "")
 
+  version
+    	Print version
 ```
 
 ### Examples
@@ -180,19 +199,3 @@ 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

@@ -25,6 +25,12 @@ type Options struct {
 	Archive string
 	// 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
@@ -85,9 +91,11 @@ type Converter struct {
 	Opts Options
 	// Current working directory
 	Workdir string
+	// Page name prefix, set per input when combining
+	prefix string
 	// Number of files
 	Nfiles int
-	// Index of current file
+	// Index of the current file
 	CurrFile int
 	// Number of contents in archive/document
 	Ncontents int
@@ -125,6 +133,7 @@ func NewOptions() Options {
 	o.Format = "jpeg"
 	o.Archive = "zip"
 	o.Quality = 75
+	o.Effort = -1
 	o.Filter = 2
 
 	return o
@@ -486,7 +495,7 @@ 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 {
 	c.CurrFile++
 
@@ -494,6 +503,13 @@ func (c *Converter) Convert(fileName string, fileInfo os.FileInfo) error {
 	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 +534,52 @@ 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
+	}
+
+	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 +3,15 @@ package cbconvert
 import (
 	"archive/tar"
 	"archive/zip"
+	"context"
 	"fmt"
 	"io"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"strings"
 
-	"github.com/gen2brain/go-unarr"
+	"github.com/mholt/archives"
 )
 
 // archiveSave saves workdir to CBZ archive.
@@ -172,17 +174,70 @@ 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 +245,43 @@ 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 +357,7 @@ 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

@@ -3,7 +3,6 @@ package cbconvert
 import (
 	"bytes"
 	"context"
-	"errors"
 	"fmt"
 	"image"
 	"image/png"
@@ -16,24 +15,17 @@ import (
 
 	"github.com/gen2brain/avif"
 	"github.com/gen2brain/go-fitz"
-	"github.com/gen2brain/go-unarr"
 	"github.com/gen2brain/jpegli"
 	"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)
@@ -78,13 +70,6 @@ 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 +86,56 @@ 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 {
-		if ctx.Err() != nil {
-			return fmt.Errorf("convertArchive: %w", ctx.Err())
-		}
-
-		err := archive.Entry()
+	file, ex, input, err := archiveOpen(ctx, fileName)
 	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 +145,11 @@ 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 +159,23 @@ 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 err = copyFile(bytes.NewReader(data), filepath.Join(c.Workdir, filepath.Base(pathName))); err != nil {
+			if c.prefix == "" && !c.Opts.NoNonImage {
+				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 +185,6 @@ 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 +206,18 @@ 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 err = copyFile(file, filepath.Join(c.Workdir, filepath.Base(img))); err != nil {
+		if isNonImage(img) && c.prefix == "" && !c.Opts.NoNonImage {
+			if err = copyFile(file, c.workPath(flatName(rel))); err != nil {
 				return fmt.Errorf("convertDirectory: %w", err)
 			}
 
@@ -235,7 +228,7 @@ 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 +246,7 @@ 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 +263,7 @@ 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 +277,11 @@ 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 +301,9 @@ 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)
@@ -389,11 +387,23 @@ 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)
-	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()
+	data, err := c.archiveFile(fileName, cover)
 	if err != nil {
 		return nil, fmt.Errorf("coverArchive: %w", err)
 	}

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
@@ -124,7 +124,7 @@ 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 +135,29 @@ func isGrayScale(img image.Image) bool {
 }
 
 var colors16 = []color.Color{
-	color.RGBA{0, 0, 0, 255},
-	color.RGBA{17, 17, 17, 255},
-	color.RGBA{34, 34, 34, 255},
-	color.RGBA{51, 51, 51, 255},
-	color.RGBA{68, 68, 68, 255},
-	color.RGBA{85, 85, 85, 255},
-	color.RGBA{102, 102, 102, 255},
-	color.RGBA{119, 119, 119, 255},
-	color.RGBA{136, 136, 136, 255},
-	color.RGBA{153, 153, 153, 255},
-	color.RGBA{170, 170, 170, 255},
-	color.RGBA{187, 187, 187, 255},
-	color.RGBA{204, 204, 204, 255},
-	color.RGBA{221, 221, 221, 255},
-	color.RGBA{238, 238, 238, 255},
-	color.RGBA{255, 255, 255, 255},
+	color.RGBA{A: 255},
+	color.RGBA{R: 17, G: 17, B: 17, A: 255},
+	color.RGBA{R: 34, G: 34, B: 34, A: 255},
+	color.RGBA{R: 51, G: 51, B: 51, A: 255},
+	color.RGBA{R: 68, G: 68, B: 68, A: 255},
+	color.RGBA{R: 85, G: 85, B: 85, A: 255},
+	color.RGBA{R: 102, G: 102, B: 102, A: 255},
+	color.RGBA{R: 119, G: 119, B: 119, A: 255},
+	color.RGBA{R: 136, G: 136, B: 136, A: 255},
+	color.RGBA{R: 153, G: 153, B: 153, A: 255},
+	color.RGBA{R: 170, G: 170, B: 170, A: 255},
+	color.RGBA{R: 187, G: 187, B: 187, A: 255},
+	color.RGBA{R: 204, G: 204, B: 204, A: 255},
+	color.RGBA{R: 221, G: 221, B: 221, A: 255},
+	color.RGBA{R: 238, G: 238, B: 238, A: 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
 }

cmd/cbconvert-gui/dist/linux/modules.txt

@@ -35,7 +35,7 @@ github.com/fvbommel/sortorder
 # github.com/gen2brain/avif v0.4.1
 ## explicit; go 1.21
 github.com/gen2brain/avif
-# github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca
+# github.com/gen2brain/cbconvert v1.0.5-0.20241106181414-0dee611bf1de
 ## explicit; go 1.23
 github.com/gen2brain/cbconvert
 # github.com/gen2brain/go-fitz v1.24.14

cmd/cbconvert-gui/go.mod

@@ -1,36 +1,56 @@
 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/gen2brain/iup-go/iup v0.0.0-20241106050025-0f971ac33ed4
-	github.com/godbus/dbus/v5 v5.1.0
+	github.com/gen2brain/cbconvert v1.0.5-0.20260623161611-a5817c3ba5de
+	github.com/gen2brain/iup-go/iup v0.32.1-0.20260604112206-a19da6654449
 )
 
 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/go-fitz v1.24.14 // indirect
-	github.com/gen2brain/go-unarr v0.2.4 // indirect
-	github.com/gen2brain/jpegli v0.3.3 // indirect
-	github.com/gen2brain/jpegxl v0.4.2 // indirect
-	github.com/gen2brain/webp v0.5.1 // indirect
+	github.com/gen2brain/avif v0.5.1 // indirect
+	github.com/gen2brain/go-fitz v1.24.15 // indirect
+	github.com/gen2brain/jpegli v0.4.0 // indirect
+	github.com/gen2brain/jpegxl 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/google/uuid v1.6.0 // indirect
+	github.com/golang/geo v0.0.0-20260622181633-f80708c60e82 // 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/tetratelabs/wazero v1.8.1 // indirect
-	golang.org/x/image v0.21.0 // indirect
-	golang.org/x/net v0.30.0 // indirect
-	golang.org/x/sync v0.8.0 // indirect
+	github.com/jupiterrider/ffi v0.7.0 // indirect
+	github.com/klauspost/compress v1.18.6 // indirect
+	github.com/klauspost/pgzip v1.2.6 // 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/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
 )
+
+replace github.com/gen2brain/cbconvert => ../..

cmd/cbconvert-gui/go.sum

@@ -1,5 +1,21 @@
-github.com/anthonynsimon/bild v0.14.0 h1:IFRkmKdNdqmexXHfEU7rPlAmdUZ8BDZEGtGHDnGWync=
-github.com/anthonynsimon/bild v0.14.0/go.mod h1:hcvEAyBjTW69qkKJTfpcDQ83sSZHxwOunsseDfeQhUs=
+github.com/STARRY-S/zip v0.2.3 h1:luE4dMvRPDOWQdeDdUxUoZkzUIpTccdKdhHHsQJ1fm4=
+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 +34,110 @@ 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 v0.8.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/ebitengine/purego v0.10.1 h1:dewVBCBT2GaMu1SrNTYxQhgQBethzfhiwvZiLGP/qyY=
+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 v0.4.1/go.mod h1:oePci7KPleKZ8X/2rjZ3FlVm2JFYjPwXiQpNgq9wrzs=
-github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca h1:qYA+cXWUG/Dx+wG2yQ4iuw/s5ROGdXAdo5aIUHrOq4U=
-github.com/gen2brain/cbconvert v1.0.5-0.20241106192421-4d845afa43ca/go.mod h1:pQ9kQXsCZQqy7LraruUkBl7CpKNHFpWayxqQ+qliE8Y=
-github.com/gen2brain/go-fitz v1.24.14 h1:09weRkjVtLYNGo7l0J7DyOwBExbwi8SJ9h8YPhw9WEo=
-github.com/gen2brain/go-fitz v1.24.14/go.mod h1:0KaZeQgASc20Yp5R/pFzyy7SmP01XcoHKNF842U2/S4=
-github.com/gen2brain/go-unarr v0.2.4 h1:Iu2kqtGfkLBSQoTFwMkSCmp0g3GrEM/XMVWzo9TQr/Y=
-github.com/gen2brain/go-unarr v0.2.4/go.mod h1:0kdy3HtjKBcEaewifXZguHCvt4qD9V8iJCx4FPEOWT8=
-github.com/gen2brain/iup-go/iup v0.0.0-20241106050025-0f971ac33ed4 h1:ElkeiufJ5qqFbhxLH0TP7FhLOm37mXezIOk5iJgV27Q=
-github.com/gen2brain/iup-go/iup v0.0.0-20241106050025-0f971ac33ed4/go.mod h1:F026AOq3tZrMCqTMa3K32xLh7fyTdc9+KMTMUX6EtX0=
-github.com/gen2brain/jpegli v0.3.3 h1:ryCOQpmGuVk6FA+QBe9st6cW48jsRdVOPiNrAJ50m+k=
-github.com/gen2brain/jpegli v0.3.3/go.mod h1:6Dbgr+ni1IUBqGVOKHn8lY+6DvwSGfAfC7pPQiSK6uA=
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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-gui/main.go

@@ -69,13 +69,12 @@ func main() {
 	iup.Open()
 	defer iup.Close()
 
-	iup.SetGlobal("UTF8MODE", "YES")
-	iup.SetGlobal("UTF8MODE_FILE", "YES")
+	iup.SetGlobal("AUTODARKMODE", "YES")
 
 	img, _ := png.Decode(bytes.NewReader(appLogo))
 	iup.ImageFromImage(img).SetHandle("logo")
 
-	dlg := iup.Dialog(layout()).SetAttributes(fmt.Sprintf(`TITLE="CBconvert %s", ICON=logo`, appVersion)).SetHandle("dlg")
+	dlg := iup.Dialog(layout()).SetAttributes(fmt.Sprintf(`TITLE="CBconvert %s", ICON=logo, SHRINK=YES`, appVersion)).SetHandle("dlg")
 
 	dlg.SetCallback("POSTMESSAGE_CB", iup.PostMessageFunc(func(ih iup.Ihandle, s string, i int, p any) int {
 		sp := strings.Split(s, ": ")
@@ -95,6 +94,14 @@ func main() {
 		return iup.DEFAULT
 	}))
 
+	dlg.SetCallback("THEMECHANGED_CB", iup.ThemeChangedFunc(func(ih iup.Ihandle, darkMode int) int {
+		t := iup.GetHandle("Table")
+		tableRowColors(t, darkMode == 1)
+		t.SetAttribute("REDRAW", "YES")
+
+		return iup.DEFAULT
+	}))
+
 	iup.Map(dlg)
 	setActive()
 
@@ -140,6 +147,17 @@ func options() cbconvert.Options {
 	opts.Fit = iup.GetHandle("Fit").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")
@@ -150,7 +168,7 @@ func options() cbconvert.Options {
 
 func setActive() {
 	opts := options()
-	count := iup.GetHandle("List").GetInt("COUNT")
+	count := iup.GetHandle("Table").GetInt("NUMLIN")
 
 	if count == 0 {
 		iup.GetHandle("Remove").SetAttribute("ACTIVE", "NO")
@@ -165,24 +183,30 @@ func setActive() {
 		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"`)
+	active := "YES"
+	var tip string
+	switch {
+	case count == 0 && opts.OutDir == "":
+		active, tip = "NO", "Add files and set output directory"
+	case count == 0:
+		active, tip = "NO", "Add files"
+	case opts.OutDir == "":
+		active, tip = "NO", "Set output directory"
 	}
+
+	enabledTip := map[string]string{
+		"Thumbnail": "Extract cover thumbnails",
+		"Cover":     "Extract covers",
+		"Convert":   "Convert files to the selected format",
+	}
+
+	for _, h := range []string{"Thumbnail", "Cover", "Convert"} {
+		b := iup.GetHandle(h)
+		b.SetAttribute("ACTIVE", active)
+		if active == "YES" {
+			b.SetAttribute("TIP", enabledTip[h])
 		} 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`)
+			b.SetAttribute("TIP", tip)
 		}
 	}
 
@@ -194,17 +218,61 @@ func setActive() {
 		iup.GetHandle("VboxTransform").SetAttribute("ACTIVE", "YES")
 	}
 
-	if (opts.Format == "jpeg" || opts.Format == "webp" || opts.Format == "avif" || opts.Format == "jxl") && !opts.NoConvert {
+	canLossless := opts.Format == "webp" || opts.Format == "avif" || opts.Format == "jxl"
+	losslessOn := canLossless && opts.Lossless
+
+	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 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")
+	}
+}
+
+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", "WEBP method, higher is better/slower (0-6, default 4)")
+		name = "Method"
+	case "avif":
+		val.SetAttributes("MIN=0, MAX=10, SHOWTICKS=11, VALUE=10")
+		val.SetAttribute("TIP", "AVIF speed, higher is faster/worse (0-10, default 10)")
+		name = "Speed"
+	case "jxl":
+		val.SetAttributes("MIN=1, MAX=10, SHOWTICKS=10, VALUE=7")
+		val.SetAttribute("TIP", "JXL effort, higher is better/slower (1-10, default 7)")
+		name = "Effort"
+	default:
+		return
+	}
+
+	val.SetAttribute("EFFORTNAME", name)
+	iup.GetHandle("LabelEffort").SetAttribute("TITLE", fmt.Sprintf("%s: %d", name, val.GetInt("VALUE")))
+	iup.Refresh(iup.GetHandle("LabelEffort"))
 }
 
 func layout() iup.Ihandle {
@@ -225,19 +293,49 @@ func layout() iup.Ihandle {
 	)
 }
 
+// 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 {
-	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
+	t := iup.Table().SetHandle("Table")
+	t.SetAttributes(map[string]string{
+		"EXPAND":         "YES",
+		"NUMCOL":         "3",
+		"NUMLIN":         "0",
+		"TITLE1":         "Title",
+		"TITLE2":         "Type",
+		"TITLE3":         "Size (MiB)",
+		"WIDTH1":         "150",
+		"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
-			})).
-			SetCallback("DROPFILES_CB", iup.DropFilesFunc(func(ih iup.Ihandle, fileName string, num, x, y int) int {
+	}))
+
+	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)
@@ -256,16 +354,48 @@ func list() iup.Ihandle {
 			return iup.DEFAULT
 		}
 
+		wasEmpty := len(files) == 0
+
 		for _, file := range fs {
-					iup.SetAttribute(iup.GetHandle("List"), "APPENDITEM", fmt.Sprintf("%s (%s)", file.Name, file.SizeHuman))
-					files = append(files, file)
+			appendFile(file)
+		}
+
+		if wasEmpty && len(files) > 0 {
+			selectRow(0)
 		}
 
 		setActive()
 
+		if wasEmpty {
+			previewPost()
+		}
+
 		return iup.DEFAULT
-			})),
-	)
+	}))
+
+	return iup.Vbox(t)
+}
+
+// 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))
+}
+
+// appendFile adds a file as a new row to the table and the files slice.
+func appendFile(file cbconvert.File) {
+	files = append(files, file)
+
+	t := iup.GetHandle("Table")
+	lin := len(files)
+	t.SetAttribute("NUMLIN", strconv.Itoa(lin))
+	iup.SetAttributeId2(t, "", lin, 1, file.Name)
+	iup.SetAttributeId2(t, "", lin, 2, cbconvert.FileType(file.Path))
+	iup.SetAttributeId2(t, "", lin, 3, strconv.FormatFloat(float64(file.Stat.Size())/(1024*1024), 'f', 2, 64))
 }
 
 func previewPost() {
@@ -363,9 +493,10 @@ func tabs() iup.Ihandle {
 				SetAttributes(`TIP="Process only files larger than minimum size"`),
 		),
 		iup.Space().SetAttributes("EXPAND=HORIZONTAL"),
-	).SetHandle("VboxInput").SetAttributes("MARGIN=5x5, GAP=5")
+	).SetHandle("VboxInput").SetAttributes("NGAP=10")
 
-	vboxOutput := iup.Vbox(
+	vboxOutput := iup.Hbox(
+		iup.Vbox(
 			iup.Vbox(
 				iup.Label("Output Directory:"),
 				iup.Text().SetAttributes("VISIBLECOLUMNS=16, MINSIZE=100x").SetHandle("OutDir").
@@ -392,9 +523,31 @@ func tabs() iup.Ihandle {
 					"2":        "TAR",
 				}).SetHandle("Archive"),
 			),
-	).SetHandle("VboxOutput").SetAttributes("MARGIN=5x5, GAP=5")
+		).SetAttributes("NGAP=10"),
+		iup.Space().SetAttribute("SIZE", "15"),
+		iup.Vbox(
+			iup.Vbox(
+				iup.Toggle(" Combine into single file").SetHandle("Combine").
+					SetAttributes(`TIP="Merge all listed files into one archive"`).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						setActive()
 
-	vboxImage := iup.Vbox(
+						return iup.DEFAULT
+					})),
+			),
+			iup.Vbox(
+				iup.Label("Output File:"),
+				iup.Text().SetAttributes("VISIBLECOLUMNS=16, MINSIZE=100x").SetHandle("OutFile").
+					SetAttribute("TIP", "Combined file name (default: first input + -combined)"),
+				iup.Space().SetAttribute("SIZE", "5x0"),
+				iup.Button("Browse...").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+					SetCallback("ACTION", iup.ActionFunc(onOutputFile)),
+			).SetHandle("VboxOutFile"),
+		).SetAttributes("NGAP=10"),
+	).SetHandle("VboxOutput")
+
+	vboxImage := iup.Hbox(
+		iup.Vbox(
 			iup.Vbox(
 				iup.Label("Format:"),
 				iup.List().SetAttributes(map[string]string{
@@ -409,6 +562,7 @@ func tabs() iup.Ihandle {
 					"7":        "JXL",
 				}).SetHandle("Format").
 					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						setEffort(strings.ToLower(ih.GetAttribute("VALUESTRING")))
 						setActive()
 						previewPost()
 
@@ -418,7 +572,7 @@ func tabs() iup.Ihandle {
 			iup.Vbox(
 				iup.Label("Size:"),
 				iup.Hbox(
-				iup.Text().SetAttributes(`CUEBANNER=" width", VISIBLECOLUMNS=4, MASK="/d*"`).SetHandle("Width").
+					iup.Text().SetAttributes(`CUEBANNER="width", VISIBLECOLUMNS=6, 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()
@@ -434,8 +588,10 @@ func tabs() iup.Ihandle {
 
 							return iup.DEFAULT
 						})),
+					iup.Space().SetAttribute("SIZE", "2"),
 					iup.Label("x"),
-				iup.Text().SetAttributes(`CUEBANNER=" height", VISIBLECOLUMNS=4, MASK="/d*"`).SetHandle("Height").
+					iup.Space().SetAttribute("SIZE", "2"),
+					iup.Text().SetAttributes(`CUEBANNER="height", VISIBLECOLUMNS=6, 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()
@@ -451,7 +607,7 @@ func tabs() iup.Ihandle {
 
 							return iup.DEFAULT
 						})),
-			).SetAttributes("ALIGNMENT=ACENTER, MARGIN=0"),
+				).SetAttributes("ALIGNMENT=ACENTER, NMARGIN=0"),
 			),
 			iup.Vbox(
 				iup.Toggle(" Best Fit").SetHandle("Fit").
@@ -472,15 +628,19 @@ func tabs() iup.Ihandle {
 					"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("Quality: "),
 					iup.Label("75").SetHandle("LabelQuality"),
-			).SetAttributes("MARGIN=0"),
+				).SetAttributes("NMARGIN=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"))
+						iup.Refresh(iup.GetHandle("LabelQuality"))
 						ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
 
 						return iup.DEFAULT
@@ -494,6 +654,36 @@ func tabs() iup.Ihandle {
 						return iup.DEFAULT
 					})),
 			).SetHandle("VboxQuality"),
+			iup.Vbox(
+				iup.Label("Effort:").SetHandle("LabelEffort"),
+				iup.Val("").SetAttributes(`MIN=0, MAX=10, VALUE=0, SHOWTICKS=11`).SetHandle("Effort").
+					SetAttribute("TIP", "Encoder speed/effort (WEBP, AVIF, JXL)").
+					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(" Lossless").SetHandle("Lossless").
+					SetAttributes(`TIP="Lossless compression (WEBP, AVIF, JXL), ignores quality"`).
+					SetCallback("VALUECHANGED_CB", iup.ValueChangedFunc(func(ih iup.Ihandle) int {
+						setActive()
+						previewPost()
+
+						return iup.DEFAULT
+					})),
+			),
 			iup.Vbox(
 				iup.Toggle(" Grayscale").SetHandle("Grayscale").
 					SetAttributes(`TIP="Convert images to grayscale (monochromatic)"`).
@@ -503,18 +693,20 @@ func tabs() iup.Ihandle {
 						return iup.DEFAULT
 					})),
 			),
-	).SetHandle("VboxImage").SetAttributes("MARGIN=5x5, GAP=5")
+		).SetAttributes("NGAP=10"),
+	).SetHandle("VboxImage")
 
 	vboxTransform := iup.Vbox(
 		iup.Vbox(
 			iup.Hbox(
 				iup.Label("Brightness: "),
 				iup.Label("0").SetHandle("LabelBrightness"),
-			).SetAttributes("ALIGNMENT=ACENTER, MARGIN=0"),
+			).SetAttributes("ALIGNMENT=ACENTER, NMARGIN=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"))
+					iup.Refresh(iup.GetHandle("LabelBrightness"))
 					ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
 
 					return iup.DEFAULT
@@ -532,11 +724,12 @@ func tabs() iup.Ihandle {
 			iup.Hbox(
 				iup.Label("Contrast: "),
 				iup.Label("0").SetHandle("LabelContrast"),
-			).SetAttributes("ALIGNMENT=ACENTER, MARGIN=0"),
+			).SetAttributes("ALIGNMENT=ACENTER, NMARGIN=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"))
+					iup.Refresh(iup.GetHandle("LabelContrast"))
 					ih.SetAttribute("MYVALUE", ih.GetInt("VALUE"))
 
 					return iup.DEFAULT
@@ -566,45 +759,51 @@ func tabs() iup.Ihandle {
 					return iup.DEFAULT
 				})),
 		),
-	).SetHandle("VboxTransform").SetAttributes("MARGIN=5x5, GAP=5")
+	).SetHandle("VboxTransform").SetAttributes("NGAP=10")
 
 	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")
+		vboxInput.SetAttributes("TABTITLE=Input, NMARGIN=10x10"),
+		vboxOutput.SetAttributes("TABTITLE=Output, NMARGIN=10x10"),
+		vboxImage.SetAttributes("TABTITLE=Image, NMARGIN=10x10"),
+		vboxTransform.SetAttributes("TABTITLE=Transform, NMARGIN=10x10"),
+	).SetHandle("Tabs")
 }
 
 func buttons() iup.Ihandle {
+	addFiles := iup.Button("Add &Files...").SetHandle("AddFiles").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onAddFiles))
+	addDir := iup.Button("Add &Dir...").SetHandle("AddDir").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onAddDir))
+	remove := iup.Button("Remove").SetHandle("Remove").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onRemove))
+	removeAll := iup.Button("Remove All").SetHandle("RemoveAll").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onRemoveAll))
+	thumbnail := iup.Button("Thumbnail").SetHandle("Thumbnail").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onThumbnail))
+	cover := iup.Button("Cover").SetHandle("Cover").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onCover))
+	convert := iup.Button("&Convert").SetHandle("Convert").SetAttributes("PADDING=DEFAULTBUTTONPADDING").
+		SetCallback("ACTION", iup.ActionFunc(onConvert))
+
+	iup.Normalizer(addFiles, addDir, remove, removeAll, thumbnail, cover, convert).SetAttribute("NORMALIZE", "BOTH")
+
 	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(
+			addFiles,
+			addDir,
+			remove,
+			removeAll,
+		).SetAttribute("NGAP", "2"),
+		iup.Space().SetAttribute("SIZE", "x5"),
 		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(
+			thumbnail,
+			cover,
+		).SetAttribute("NGAP", "2"),
+		iup.Space().SetAttribute("SIZE", "x5"),
 		iup.Vbox(
-				iup.Button("&Convert").SetHandle("Convert").SetAttributes("EXPAND=HORIZONTAL, PADDING=DEFAULTBUTTONPADDING").
-					SetCallback("ACTION", iup.ActionFunc(onConvert)),
+			convert,
 		),
-		),
-	).SetHandle("Buttons").SetAttributes("ALIGNMENT=ACENTER, NGAP=10")
+	).SetHandle("Buttons").SetAttributes("ALIGNMENT=ACENTER")
 }
 
 func status() iup.Ihandle {
@@ -612,10 +811,10 @@ func status() iup.Ihandle {
 		loading(),
 		iup.Fill(),
 		iup.Label("File 1 of 1").SetHandle("LabelStatus1").SetAttributes("VISIBLE=NO"),
-		iup.Space().SetAttribute("SIZE", "5x0"),
+		iup.Space().SetAttribute("SIZE", "5"),
 		iup.Label("(000/000)").SetHandle("LabelStatus2").SetAttributes("VISIBLE=NO"),
-		iup.Space().SetAttribute("SIZE", "5x0"),
-		iup.ProgressBar().SetAttributes("RASTERSIZE=200x15, VISIBLE=NO").SetHandle("ProgressBar").
+		iup.Space().SetAttribute("SIZE", "5"),
+		iup.ProgressBar().SetAttributes("RASTERSIZE=200x, VISIBLE=NO").SetHandle("ProgressBar").
 			SetCallback("POSTMESSAGE_CB", iup.PostMessageFunc(func(ih iup.Ihandle, s string, i int, p any) int {
 				switch s {
 				case "convert":
@@ -623,7 +822,7 @@ func status() iup.Ihandle {
 					ih.SetAttributes("VALUE=0, VISIBLE=YES")
 					ih.SetAttribute("MAX", conv.Ncontents)
 
-					iup.GetHandle("List").SetAttributes("ACTIVE=NO")
+					iup.GetHandle("Table").SetAttributes("ACTIVE=NO")
 					iup.GetHandle("Tabs").SetAttributes("ACTIVE=NO")
 					iup.GetHandle("Buttons").SetAttributes("ACTIVE=NO")
 
@@ -637,7 +836,7 @@ func status() iup.Ihandle {
 					ih.SetAttributes("VALUE=0, VISIBLE=YES")
 					ih.SetAttribute("MAX", conv.Nfiles)
 
-					iup.GetHandle("List").SetAttributes("ACTIVE=NO")
+					iup.GetHandle("Table").SetAttributes("ACTIVE=NO")
 					iup.GetHandle("Tabs").SetAttributes("ACTIVE=NO")
 					iup.GetHandle("Buttons").SetAttributes("ACTIVE=NO")
 
@@ -655,7 +854,7 @@ func status() iup.Ihandle {
 
 					iup.Refresh(iup.GetHandle("StatusBar"))
 				case "finish":
-					iup.GetHandle("List").SetAttributes("ACTIVE=YES")
+					iup.GetHandle("Table").SetAttributes("ACTIVE=YES")
 					iup.GetHandle("Tabs").SetAttributes("ACTIVE=YES")
 					iup.GetHandle("Buttons").SetAttributes("ACTIVE=YES")
 
@@ -708,12 +907,21 @@ func onAddFiles(ih iup.Ihandle) int {
 			return iup.DEFAULT
 		}
 
+		wasEmpty := len(files) == 0
+
 		for _, file := range fs {
-			iup.SetAttribute(iup.GetHandle("List"), "APPENDITEM", fmt.Sprintf("%s (%s)", file.Name, file.SizeHuman))
-			files = append(files, file)
+			appendFile(file)
+		}
+
+		if wasEmpty && len(files) > 0 {
+			selectRow(0)
 		}
 
 		setActive()
+
+		if wasEmpty {
+			previewPost()
+		}
 	}
 
 	return iup.DEFAULT
@@ -739,30 +947,40 @@ func onAddDir(ih iup.Ihandle) int {
 			return iup.DEFAULT
 		}
 
+		wasEmpty := len(files) == 0
+
 		for _, file := range fs {
-			iup.SetAttribute(iup.GetHandle("List"), "APPENDITEM", fmt.Sprintf("%s (%s)", file.Name, file.SizeHuman))
-			files = append(files, file)
+			appendFile(file)
+		}
+
+		if wasEmpty && len(files) > 0 {
+			selectRow(0)
 		}
 
 		setActive()
+
+		if wasEmpty {
+			previewPost()
+		}
 	}
 
 	return iup.DEFAULT
 }
 
 func onRemove(ih iup.Ihandle) int {
-	if index == -1 || len(files) == 0 {
+	if index < 0 || index >= len(files) {
 		return iup.IGNORE
 	}
 
-	if len(files) == 1 {
-		files = make([]cbconvert.File, 0)
-	} else {
-		files = slices.Delete(files, index, index)
+	iup.GetHandle("Table").SetAttribute("DELLIN", strconv.Itoa(index+1))
+	files = slices.Delete(files, index, index+1)
+
+	if index >= len(files) {
+		index = len(files) - 1
 	}
 
-	iup.GetHandle("List").SetAttribute("REMOVEITEM", iup.GetHandle("List").GetAttribute("VALUE"))
 	setActive()
+	previewPost()
 
 	return iup.DEFAULT
 }
@@ -771,7 +989,7 @@ func onRemoveAll(ih iup.Ihandle) int {
 	index = -1
 	files = make([]cbconvert.File, 0)
 
-	iup.GetHandle("List").SetAttribute("REMOVEITEM", "ALL")
+	iup.GetHandle("Table").SetAttribute("NUMLIN", "0")
 	setActive()
 
 	return iup.DEFAULT
@@ -889,27 +1107,40 @@ func onConvert(ih iup.Ihandle) int {
 		return iup.DEFAULT
 	}))
 
-	go func(c *cbconvert.Converter) {
-		for _, file := range files {
-			if err := c.Convert(file.Path, file.Stat); err != nil {
+	convertErr := func(err error) {
 		if errors.Is(err, context.Canceled) {
-					if err := os.RemoveAll(c.Workdir); err != nil {
+			if err := os.RemoveAll(conv.Workdir); err != nil {
 				fmt.Println(err)
 			}
 
-					break
+			return
 		}
 
 		iup.PostMessage(iup.GetHandle("dlg"), err.Error(), 0, 0)
 		fmt.Println(err)
 
-				if err := os.RemoveAll(c.Workdir); err != nil {
+		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.Path, file.Stat); err != nil {
+					convertErr(err)
+					if errors.Is(err, context.Canceled) {
+						break
+					}
 
 					continue
 				}
 			}
+		}
 
 		iup.PostMessage(iup.GetHandle("ProgressBar"), "finish", 0, 0)
 	}(conv)
@@ -935,6 +1166,17 @@ func onOutputDirectory(ih iup.Ihandle) int {
 	return iup.DEFAULT
 }
 
+func onOutputFile(ih iup.Ihandle) int {
+	name := saveDlg("Output File")
+	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:
@@ -957,3 +1199,72 @@ func onFilterChanged(ih iup.Ihandle) int {
 
 	return iup.DEFAULT
 }
+
+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 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
+}
+
+func saveDlg(title 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,
+	})
+
+	iup.Popup(dlg, iup.CENTERPARENT, iup.CENTERPARENT)
+
+	if dlg.GetInt("STATUS") == -1 {
+		return ""
+	}
+
+	return dlg.GetAttribute("VALUE")
+}

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/go.mod

@@ -1,39 +1,60 @@
 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/schollz/progressbar/v3 v3.13.1
+	github.com/gen2brain/cbconvert v1.0.5-0.20260623161611-a5817c3ba5de
+	github.com/schollz/progressbar/v3 v3.19.0
 )
 
 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/go-fitz v1.24.14 // indirect
-	github.com/gen2brain/go-unarr v0.2.4 // indirect
-	github.com/gen2brain/jpegli v0.3.3 // indirect
-	github.com/gen2brain/jpegxl v0.4.2 // indirect
-	github.com/gen2brain/webp v0.5.1 // indirect
+	github.com/gen2brain/avif v0.5.1 // indirect
+	github.com/gen2brain/go-fitz v1.24.15 // indirect
+	github.com/gen2brain/jpegli v0.4.0 // indirect
+	github.com/gen2brain/jpegxl 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 v0.0.0-20260622181633-f80708c60e82 // 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/mattn/go-runewidth v0.0.15 // indirect
+	github.com/jupiterrider/ffi v0.7.0 // indirect
+	github.com/klauspost/compress v1.18.6 // 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/tetratelabs/wazero v1.8.1 // indirect
-	golang.org/x/image v0.21.0 // indirect
-	golang.org/x/net v0.30.0 // indirect
-	golang.org/x/sync v0.8.0 // indirect
-	golang.org/x/sys v0.26.0 // indirect
-	golang.org/x/term v0.25.0 // indirect
+	github.com/nwaples/rardecode/v2 v2.2.5 // indirect
+	github.com/pierrec/lz4/v4 v4.1.27 // indirect
+	github.com/rivo/uniseg v0.4.7 // 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/term v0.44.0 // indirect
+	golang.org/x/text v0.38.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
+
+replace github.com/gen2brain/cbconvert => ../..

cmd/cbconvert/go.sum

@@ -1,8 +1,25 @@
-github.com/anthonynsimon/bild v0.14.0 h1:IFRkmKdNdqmexXHfEU7rPlAmdUZ8BDZEGtGHDnGWync=
-github.com/anthonynsimon/bild v0.14.0/go.mod h1:hcvEAyBjTW69qkKJTfpcDQ83sSZHxwOunsseDfeQhUs=
+github.com/STARRY-S/zip v0.2.3 h1:luE4dMvRPDOWQdeDdUxUoZkzUIpTccdKdhHHsQJ1fm4=
+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 +38,20 @@ 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=
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-golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
-golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
-golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/net v0.56.0 h1:Rw8j/hFzGvJUZwNBXnAtf5sVDVt+65SK2C7IxCxZt5o=
+golang.org/x/net v0.56.0/go.mod h1:D3Ku6r+V6JROoZK144D2XfMHFcMq/0zSfLelVTCFKec=
+golang.org/x/sync v0.21.0 h1:HLII4xRRTtCRkxYp4HNFF0Js/Og6q2i++KXbg0gHCwM=
+golang.org/x/sync v0.21.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
-golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
-golang.org/x/term v0.25.0 h1:WtHI/ltw4NvSUig5KARz9h521QvRC8RmF/cuYqifU24=
-golang.org/x/term v0.25.0/go.mod h1:RPyXicDX+6vLxogjjRxjgD2TKtmAO6NZBsBRfrOLu7M=
+golang.org/x/sys v0.46.0 h1:noSf2Fq6F8DBgS+LysIkx7rIExoNHJsxOAtPp4rthXw=
+golang.org/x/sys v0.46.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/term v0.44.0 h1:0rLvDRCtNj0gZkyIXhCyOb2OAzEhLVqc4B+hrsBhrmc=
+golang.org/x/term v0.44.0/go.mod h1:7ze4MdzUzLXpSAoFP1H0bOI9aXDqveSvatT5vKcFh2Y=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.38.0 h1:sXmwo9DwP3OK9EZ7PqAdaooSGozfl/3a6/xJcbzPRhE=
+golang.org/x/text v0.38.0/go.mod h1:YXZt3QhHUKYT53r2lLKFIVi6Ao1jdzrTR/KQ09qyxF4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

cmd/cbconvert/main.go

@@ -114,6 +114,17 @@ func main() {
 		}
 	}
 
+	if opts.Combine {
+		if err := conv.Combine(files); err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		fmt.Fprintf(os.Stderr, "\r")
+
+		return
+	}
+
 	for _, file := range files {
 		switch {
 		case opts.Meta:
@@ -167,6 +178,10 @@ func parseFlags() (cbconvert.Options, []string) {
 	convert.StringVar(&opts.Format, "format", "jpeg", "Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl")
 	convert.StringVar(&opts.Archive, "archive", "zip", "Archive format, valid values are zip, tar")
 	convert.IntVar(&opts.Quality, "quality", 75, "Image quality")
+	convert.IntVar(&opts.Effort, "effort", -1, "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.Lossless, "lossless", false, "Lossless compression (webp, avif, jxl), ignores quality")
+	convert.BoolVar(&opts.Combine, "combine", false, "Combine all inputs into a single archive")
+	convert.StringVar(&opts.OutFile, "outfile", "", "Output file name for --combine (default: first input + -combined)")
 	convert.IntVar(&opts.Filter, "filter", 2, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos")
 	convert.BoolVar(&opts.NoCover, "no-cover", false, "Do not convert the cover image")
 	convert.BoolVar(&opts.NoRGB, "no-rgb", false, "Do not convert images that have RGB colorspace")
@@ -188,6 +203,8 @@ func parseFlags() (cbconvert.Options, []string) {
 	cover.BoolVar(&opts.Fit, "fit", false, "Best fit for required width and height")
 	cover.StringVar(&opts.Format, "format", "jpeg", "Image format, valid values are jpeg, png, tiff, bmp, webp, avif")
 	cover.IntVar(&opts.Quality, "quality", 75, "Image quality")
+	cover.IntVar(&opts.Effort, "effort", -1, "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.Lossless, "lossless", false, "Lossless compression (webp, avif, jxl), ignores quality")
 	cover.IntVar(&opts.Filter, "filter", 2, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos")
 	cover.StringVar(&opts.OutDir, "outdir", ".", "Output directory")
 	cover.IntVar(&opts.Size, "size", 0, "Process only files larger than size (in MB)")
@@ -218,7 +235,7 @@ 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{"width", "height", "fit", "format", "archive", "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)
@@ -226,7 +243,7 @@ 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{"width", "height", "fit", "format", "quality", "effort", "lossless", "combine", "outfile", "filter", "outdir", "size", "recursive", "quiet"}
 		for _, name := range order {
 			f := cover.Lookup(name)
 			fmt.Fprintf(os.Stderr, "    --%s\n    \t", f.Name)
@@ -297,7 +314,7 @@ func parseFlags() (cbconvert.Options, []string) {
 	return opts, args
 }
 
-// piped checks if we have a piped stdin.
+// piped checks if we have piped stdin.
 func piped() bool {
 	f, err := os.Stdin.Stat()
 	if err != nil {
@@ -311,7 +328,7 @@ 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)

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/go-fitz v1.24.14
-	github.com/gen2brain/go-unarr v0.2.3
-	github.com/gen2brain/jpegli v0.3.3
-	github.com/gen2brain/jpegxl v0.4.2
-	github.com/gen2brain/webp v0.5.1
+	github.com/gen2brain/avif v0.5.1
+	github.com/gen2brain/go-fitz v1.24.15
+	github.com/gen2brain/jpegli v0.4.0
+	github.com/gen2brain/jpegxl v0.5.1
+	github.com/gen2brain/webp v0.6.1
 	github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25
-	golang.org/x/image v0.21.0
-	golang.org/x/sync v0.8.0
+	github.com/mholt/archives v0.1.5
+	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/go-errors/errors v1.5.1 // indirect
-	github.com/golang/geo v0.0.0-20230421003525-6adc56603217 // indirect
-	github.com/jupiterrider/ffi v0.2.1 // indirect
-	github.com/tetratelabs/wazero v1.8.1 // indirect
-	golang.org/x/net v0.30.0 // indirect
+	github.com/golang/geo v0.0.0-20260622181633-f80708c60e82 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
+	github.com/jupiterrider/ffi v0.7.0 // indirect
+	github.com/klauspost/compress v1.18.6 // 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/anthonynsimon/bild v0.14.0/go.mod h1:hcvEAyBjTW69qkKJTfpcDQ83sSZHxwOunsseDfeQhUs=
+github.com/STARRY-S/zip v0.2.3 h1:luE4dMvRPDOWQdeDdUxUoZkzUIpTccdKdhHHsQJ1fm4=
+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 +34,20 @@ 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 v0.8.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/ebitengine/purego v0.10.1 h1:dewVBCBT2GaMu1SrNTYxQhgQBethzfhiwvZiLGP/qyY=
+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 v0.4.0/go.mod h1:oePci7KPleKZ8X/2rjZ3FlVm2JFYjPwXiQpNgq9wrzs=
-github.com/gen2brain/avif v0.4.1 h1:fjwv5SDNYHdI1gbW6MJn3Yaxs1ldUEfAIAH8Ahee538=
-github.com/gen2brain/avif v0.4.1/go.mod h1:oePci7KPleKZ8X/2rjZ3FlVm2JFYjPwXiQpNgq9wrzs=
-github.com/gen2brain/go-fitz v1.24.14 h1:09weRkjVtLYNGo7l0J7DyOwBExbwi8SJ9h8YPhw9WEo=
-github.com/gen2brain/go-fitz v1.24.14/go.mod h1:0KaZeQgASc20Yp5R/pFzyy7SmP01XcoHKNF842U2/S4=
-github.com/gen2brain/go-unarr v0.2.3 h1:VwZg0P6Dc/8Uh51McjVhzUMg4wHwwbiyqjEFsFELc0c=
-github.com/gen2brain/go-unarr v0.2.3/go.mod h1:hoHheVuf0KT8/hfvkEL7GMwj2h7fq0lF72NdyySdr3c=
-github.com/gen2brain/jpegli v0.3.3 h1:ryCOQpmGuVk6FA+QBe9st6cW48jsRdVOPiNrAJ50m+k=
-github.com/gen2brain/jpegli v0.3.3/go.mod h1:6Dbgr+ni1IUBqGVOKHn8lY+6DvwSGfAfC7pPQiSK6uA=
-github.com/gen2brain/jpegxl v0.4.1 h1:jWaVp5GkXLJXjRvC+g0R9+uo+xoWiS7DYKxJ3n5gHL4=
-github.com/gen2brain/jpegxl v0.4.1/go.mod h1:zIIDnzh7WqG+z66zyzLWQ0M4AS5xi//pyJLgu32GB1o=
-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=
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