Be dynamic

main.go

@@ -1,7 +1,10 @@
 package main
 
 import (
+	"errors"
 	"log"
+	"os"
+	"strconv"
 	"sync"
 
 	"fyne.io/fyne/v2"
@@ -12,6 +15,19 @@ import (
 	"golang.design/x/hotkey"
 )
 
+type Layer struct {
+	Hotkey hotkey.Key
+	Image  *canvas.Image
+}
+
+var keymap = map[string]hotkey.Key{
+	"KeyF13": hotkey.KeyF13,
+	"KeyF14": hotkey.KeyF14,
+	"KeyF15": hotkey.KeyF15,
+	"KeyF16": hotkey.KeyF16,
+	"KeyF17": hotkey.KeyF17,
+}
+
 func main() {
 	a := app.New()
 	w := a.NewWindow("SysTray")
@@ -26,57 +42,61 @@ func main() {
 		desk.SetSystemTrayMenu(m)
 		desk.SetSystemTrayIcon(icon)
 	}
-
-	// image := canvas.NewImageFromResource(theme.ConfirmIcon())
-	layer_1 := canvas.NewImageFromFile("./layer_1.png")
-	layer_1.Translucency = 0.5
-	layer_2 := canvas.NewImageFromFile("./layer_2.png")
-	layer_2.Translucency = 0.5
-	w.SetContent(container.NewPadded(layer_1))
 	w.Resize(fyne.Size{
 		Width:  1656 / 2,
 		Height: 546 / 2,
 	})
+	defaultImage := canvas.NewImageFromFile("./default.png")
+
+	layers := []Layer{}
+	for i := range 5 {
+		imagePath := "./layer_" + strconv.Itoa(i+1) + ".png"
+		if _, err := os.Stat(imagePath); errors.Is(err, os.ErrNotExist) {
+			continue
+		}
+
+		newLayer := Layer{
+			Image:  canvas.NewImageFromFile(imagePath),
+			Hotkey: keymap["KeyF"+strconv.Itoa(12+i)],
+		}
+
+		layers = append(layers, newLayer)
+	}
+
+	w.SetContent(container.NewPadded(defaultImage))
 
-	// w.SetContent(widget.NewLabel("Fyne System Tray"))
 	w.SetCloseIntercept(func() {
 		w.Hide()
 	})
 
 	go func() {
 		wg := sync.WaitGroup{}
-		wg.Add(2)
-		go func() {
-			defer wg.Done()
+		wg.Add(len(layers))
 
-			err := listenHotkey(
-				func() { w.SetContent(container.NewPadded(layer_1)) },
-				func() { w.SetContent(container.NewPadded(layer_2)) },
-				hotkey.Key1,
-			)
-			if err != nil {
-				log.Println(err)
-			}
-		}()
-		go func() {
-			defer wg.Done()
+		for _, v := range layers {
+			go func() {
+				defer wg.Done()
 
-			err := listenHotkey(
-				func() { w.SetContent(container.NewPadded(layer_1)) },
-				func() { log.Println("up") },
-				hotkey.Key2,
-			)
-			if err != nil {
-				log.Println(err)
-			}
-		}()
+				log.Printf("Registering %+v", v)
+
+				err := listenHotkey(
+					func() { w.SetContent(container.NewPadded(v.Image)) },
+					func() { w.SetContent(container.NewPadded(defaultImage)) },
+					v.Hotkey,
+				)
+				if err != nil {
+					log.Println(err)
+					return
+				}
+			}()
+		}
 		wg.Wait()
 	}()
 
 	w.ShowAndRun()
 }
 
-func listenHotkey(upfn func(), downfn func(), key hotkey.Key, mods ...hotkey.Modifier) (err error) {
+func listenHotkey(downfn func(), upfn func(), key hotkey.Key, mods ...hotkey.Modifier) (err error) {
 	ms := []hotkey.Modifier{}
 	ms = append(ms, mods...)
 	hk := hotkey.New(ms, key)