basic sizing of images

main.go

@@ -2,12 +2,13 @@ package main
 
 import (
 	_ "embed"
-	"io"
+	"fmt"
 	"log"
 	"os"
 	"path/filepath"
 	"slices"
 
+	"github.com/disintegration/imaging"
 	tk "modernc.org/tk9.0"
 )
 
@@ -27,6 +28,7 @@ var validFileTypes = []tk.FileType{
 }
 
 var metaActive bool
+var fileList *tk.ToplevelWidget
 
 var directoryState struct {
 	currentDirectory string
@@ -95,28 +97,42 @@ func newDirectory(img *tk.LabelWidget) func() {
 }
 
 func updateImage(file string, img *tk.LabelWidget) {
-	f, err := os.Open(file)
+	i, err := imaging.Open(file, imaging.AutoOrientation(true))
 	if err != nil {
 		log.Println(err.Error())
 		return
 	}
-	i, err := io.ReadAll(f)
-	if err != nil {
-		log.Println(err.Error())
-		return
+	// todo: make these bounds max out at display size
+	if i.Bounds().Dy() > i.Bounds().Dx() {
+		i = imaging.Resize(i, 0, 1000, imaging.CatmullRom)
+	} else {
+		i = imaging.Resize(i, 1000, 0, imaging.CatmullRom)
 	}
-	img.Configure(tk.Image(tk.NewPhoto(tk.Data(i))))
+	repaint(img, filepath.Base(file), tk.Data(i))
 	directoryState.currentFile = filepath.Base(file)
 }
 
+func repaint(img *tk.LabelWidget, name string, opt tk.Opt) {
+	photo := tk.NewPhoto(opt)
+	log.Printf("height: %v, width: %v", photo.Height(), photo.Width())
+	img.Configure(tk.Image(tk.NewPhoto(opt)))
+	if name != "" {
+		tk.App.WmTitle(fmt.Sprintf("why | %s", name))
+	} else {
+		tk.App.WmTitle("why")
+	}
+}
+
 func main() {
-	img := tk.Label(tk.Image(tk.NewPhoto(tk.Data(noise))))
+	img := tk.Label()
+	repaint(img, "", tk.Data(noise))
 
 	menubar := tk.Menu()
 	fileMenu := menubar.Menu()
 	fileMenu.AddCommand(tk.Lbl("Open File"), tk.Underline(0), tk.Accelerator("Meta+O"), tk.Command(newFileInDirectory(img)))
 	fileMenu.AddCommand(tk.Lbl("Open Directory"), tk.Underline(0), tk.Command(newDirectory(img)))
 	menubar.AddCascade(tk.Lbl("File"), tk.Underline(0), tk.Mnu(fileMenu))
+	tk.App.Configure(tk.Mnu(menubar))
 
 	// TODO: if someone presses the Meta key again after the openfile dialog box closes,
 	// it triggers a _release_ event instead of a press event. The second time afterward, it works correctly.
@@ -133,7 +149,17 @@ func main() {
 			}
 		case "a":
 			if metaActive {
-				tk.Toplevel()
+				if fileList == nil {
+					fileList = tk.Toplevel()
+					fileList.WmTitle("files")
+					tk.Bind(fileList, "<Destroy>", tk.Command(func(e *tk.Event) {
+						// list closed by user click on <x>
+						fileList = nil
+					}))
+				} else {
+					// list closed by Meta-a
+					tk.Destroy(fileList)
+				}
 			}
 		case "Up":
 			if curr > 0 {
@@ -157,5 +183,5 @@ func main() {
 	// }))
 
 	tk.Pack(img)
-	tk.App.Configure(tk.Mnu(menubar)).Center().Wait()
+	tk.App.Wait()
 }