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add options to rotate and flip images

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This commit is contained in:
Milan Nikolic
2015-11-04 14:20:37 +01:00
parent d7be2f4d5e
commit d70de9f4db
2 changed files with 75 additions and 48 deletions
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68
cbconvert.go
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@@ -97,6 +97,8 @@ type options struct {
Thumbnail bool // extract cover thumbnail (freedesktop spec.)
Outdir string // output directory
Grayscale bool // convert images to grayscale (monochromatic)
Rotate int // Rotate images, valid values are 0, 90, 180, 270
Flip string // Flip images, valid values are none, horizontal, vertical
Recursive bool // process subdirectories recursively
Size int64 // process only files larger then size (in MB)
Quiet bool // hide console output
@@ -140,6 +142,26 @@ func convertImage(img image.Image, index int, pathName string) {
i = imaging.Grayscale(img)
}
if opts.Rotate > 0 {
switch opts.Rotate {
case 90:
i = imaging.Rotate90(img)
case 180:
i = imaging.Rotate180(img)
case 270:
i = imaging.Rotate270(img)
}
}
if opts.Flip != "none" {
switch opts.Flip {
case "horizontal":
i = imaging.FlipH(img)
case "vertical":
i = imaging.FlipV(img)
}
}
if opts.ToPNG {
// convert image to PNG
f, err := os.Create(filename)
@@ -836,36 +858,38 @@ func parseFlags() {
kingpin.CommandLine.Help = "Comic Book convert tool."
kingpin.UsageTemplate(kingpin.CompactUsageTemplate)
kingpin.Flag("outdir", "Output directory").Default(".").Short('o').StringVar(&opts.Outdir)
kingpin.Flag("size", "Process only files larger then size (in MB)").Short('m').Default(strconv.Itoa(0)).Int64Var(&opts.Size)
kingpin.Flag("recursive", "Process subdirectories recursively").Short('R').BoolVar(&opts.Recursive)
kingpin.Flag("quiet", "Hide console output").Short('Q').BoolVar(&opts.Quiet)
kingpin.Flag("outdir", "Output directory").Default(".").StringVar(&opts.Outdir)
kingpin.Flag("size", "Process only files larger then size (in MB)").Default(strconv.Itoa(0)).Int64Var(&opts.Size)
kingpin.Flag("recursive", "Process subdirectories recursively").BoolVar(&opts.Recursive)
kingpin.Flag("quiet", "Hide console output").BoolVar(&opts.Quiet)
convert := kingpin.Command("convert", "Convert archive or document (default)").Default()
convert := kingpin.Command("convert", "Convert archive or document (default command)").Default()
convert.Arg("args", "filename or directory").Required().ExistingFilesOrDirsVar(&arguments)
convert.Flag("width", "Image width").Default(strconv.Itoa(0)).Short('w').IntVar(&opts.Width)
convert.Flag("height", "Image height").Default(strconv.Itoa(0)).Short('h').IntVar(&opts.Height)
convert.Flag("quality", "JPEG image quality").Short('q').Default(strconv.Itoa(jpeg.DefaultQuality)).IntVar(&opts.Quality)
convert.Flag("filter", "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos").Short('f').Default(strconv.Itoa(Linear)).IntVar(&opts.Filter)
convert.Flag("png", "Encode images to PNG instead of JPEG").Short('p').BoolVar(&opts.ToPNG)
convert.Flag("bmp", "Encode images to 4-Bit BMP (16 colors) instead of JPEG").Short('b').BoolVar(&opts.ToBMP)
convert.Flag("gif", "Encode images to GIF instead of JPEG").Short('g').BoolVar(&opts.ToGIF)
convert.Flag("rgb", "Convert images that have RGB colorspace (use --no-rgb if you only want to process grayscale images)").Short('N').Default("true").BoolVar(&opts.RGB)
convert.Flag("nonimage", "Leave non image files in archive (use --no-nonimage to remove non image files from archive)").Short('I').Default("true").BoolVar(&opts.NonImage)
convert.Flag("grayscale", "Convert images to grayscale (monochromatic)").Short('G').BoolVar(&opts.Grayscale)
convert.Flag("suffix", "Add suffix to file basename").Short('s').StringVar(&opts.Suffix)
convert.Flag("width", "Image width").Default(strconv.Itoa(0)).IntVar(&opts.Width)
convert.Flag("height", "Image height").Default(strconv.Itoa(0)).IntVar(&opts.Height)
convert.Flag("quality", "JPEG image quality").Default(strconv.Itoa(jpeg.DefaultQuality)).IntVar(&opts.Quality)
convert.Flag("filter", "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos").Default(strconv.Itoa(Linear)).IntVar(&opts.Filter)
convert.Flag("png", "Encode images to PNG instead of JPEG").BoolVar(&opts.ToPNG)
convert.Flag("bmp", "Encode images to 4-Bit BMP (16 colors) instead of JPEG").BoolVar(&opts.ToBMP)
convert.Flag("gif", "Encode images to GIF instead of JPEG").BoolVar(&opts.ToGIF)
convert.Flag("rgb", "Convert images that have RGB colorspace (use --no-rgb if you only want to process grayscale images)").Default("true").BoolVar(&opts.RGB)
convert.Flag("nonimage", "Leave non image files in archive (use --no-nonimage to remove non image files from archive)").Default("true").BoolVar(&opts.NonImage)
convert.Flag("grayscale", "Convert images to grayscale (monochromatic)").BoolVar(&opts.Grayscale)
convert.Flag("rotate", "Rotate images, valid values are 0, 90, 180, 270").Default(strconv.Itoa(0)).IntVar(&opts.Rotate)
convert.Flag("flip", "Flip images, valid values are none, horizontal, vertical").Default("none").StringVar(&opts.Flip)
convert.Flag("suffix", "Add suffix to file basename").StringVar(&opts.Suffix)
cover := kingpin.Command("cover", "Extract cover")
cover.Arg("args", "filename or directory").Required().ExistingFilesOrDirsVar(&arguments)
cover.Flag("width", "Image width").Default(strconv.Itoa(0)).Short('w').IntVar(&opts.Width)
cover.Flag("height", "Image height").Default(strconv.Itoa(0)).Short('h').IntVar(&opts.Height)
cover.Flag("quality", "JPEG image quality").Short('q').Default(strconv.Itoa(jpeg.DefaultQuality)).IntVar(&opts.Quality)
cover.Flag("filter", "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos").Short('f').Default(strconv.Itoa(Linear)).IntVar(&opts.Filter)
cover.Flag("width", "Image width").Default(strconv.Itoa(0)).IntVar(&opts.Width)
cover.Flag("height", "Image height").Default(strconv.Itoa(0)).IntVar(&opts.Height)
cover.Flag("quality", "JPEG image quality").Default(strconv.Itoa(jpeg.DefaultQuality)).IntVar(&opts.Quality)
cover.Flag("filter", "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos").Default(strconv.Itoa(Linear)).IntVar(&opts.Filter)
thumbnail := kingpin.Command("thumbnail", "Extract cover thumbnail (freedesktop spec.)")
thumbnail.Arg("args", "filename or directory").Required().ExistingFilesOrDirsVar(&arguments)
thumbnail.Flag("width", "Image width").Default(strconv.Itoa(0)).Short('w').IntVar(&opts.Width)
thumbnail.Flag("height", "Image height").Default(strconv.Itoa(0)).Short('h').IntVar(&opts.Height)
thumbnail.Flag("width", "Image width").Default(strconv.Itoa(0)).IntVar(&opts.Width)
thumbnail.Flag("height", "Image height").Default(strconv.Itoa(0)).IntVar(&opts.Height)
switch kingpin.Parse() {
case "cover":