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package main
import (
"bytes"
"fmt"
"github.com/mattn/go-gtk/gdkpixbuf"
"github.com/mattn/go-gtk/gtk"
"github.com/mattn/go-sixel"
"image"
"image/png"
"os"
"path/filepath"
)
type Image struct {
name string
img image.Image
}
func main() {
var images []Image
if len(os.Args) == 1 {
var in image.Image
err := sixel.NewDecoder(os.Stdin).Decode(&in)
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
images = append(images, Image{
name: "stdin",
img: in})
} else {
for _, arg := range os.Args[1:] {
f, err := os.Open(arg)
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
var in image.Image
err = sixel.NewDecoder(f).Decode(&in)
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
f.Close()
images = append(images, Image{
name: filepath.Base(f.Name()),
img: in})
}
}
gtk.Init(nil)
window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
window.Connect("destroy", gtk.MainQuit)
notebook := gtk.NewNotebook()
for _, img := range images {
var buf bytes.Buffer
err := png.Encode(&buf, img.img)
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
loader, gerr := gdkpixbuf.NewLoaderWithType("png")
if gerr != nil {
fmt.Fprintln(os.Stderr, gerr)
os.Exit(1)
}
_, gerr = loader.Write(buf.Bytes())
if gerr != nil {
fmt.Fprintln(os.Stderr, gerr)
os.Exit(1)
}
gimg := gtk.NewImage()
gimg.SetFromPixbuf(loader.GetPixbuf())
notebook.AppendPage(gimg, gtk.NewLabel(img.name))
}
window.Add(notebook)
window.SetTitle("SixelViewer")
window.ShowAll()
gtk.Main()
}
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