Changed tab style so the tabs are always visable

ui.go

@@ -1892,8 +1892,7 @@ func main() {
 		exportSettingsBtn,
 		importSettingsBtn,
 	))
-	// Create the main layout using a horizontal split
-	tabs := container.NewAppTabs(
+	tabItems := []*container.TabItem{
 		imageTab,
 		terrainTab,
 		waterTab,
@@ -1901,11 +1900,42 @@ func main() {
 		fortificationsTab,
 		textTab,
 		buildingsTab,
+	}
+	tabContent := container.NewMax()
+	tabButtons := make([]*tabButton, 0, len(tabItems))
+	setActiveTab := func(name string) {
+		for idx, item := range tabItems {
+			if item.Text == name {
+				tabContent.Objects = []fyne.CanvasObject{item.Content}
+				tabContent.Refresh()
+				for btnIdx, btn := range tabButtons {
+					btn.setSelected(btnIdx == idx)
+				}
+				return
+			}
+		}
+	}
+	for _, item := range tabItems {
+		tabName := item.Text
+		btn := makeTabButton(tabName, func() {
+			setActiveTab(tabName)
+		})
+		tabButtons = append(tabButtons, btn)
+	}
+	rowSplit := (len(tabButtons) + 1) / 2
+	topRow := container.NewGridWithColumns(rowSplit, toTabCanvasObjects(tabButtons[:rowSplit])...)
+	bottomRow := container.NewGridWithColumns(len(tabButtons)-rowSplit, toTabCanvasObjects(tabButtons[rowSplit:])...)
+	tabHeader := container.NewVBox(
+		topRow,
+		bottomRow,
+		widget.NewSeparator(),
 	)
+	setActiveTab(imageTab.Text)
 
 	left := container.NewVBox(
 		widget.NewLabel("RPG City Maker Reborn"),
-		tabs,
+		tabHeader,
+		tabContent,
 	)
 
 	right := container.NewMax()
@@ -2058,6 +2088,52 @@ func makeLegendItem(swatch color.Color, label string) fyne.CanvasObject {
 	return container.NewHBox(container.NewStack(rect, outline), widget.NewLabel(label))
 }
 
+type tabButton struct {
+	widget   *tappableImage
+	bg       *canvas.Rectangle
+	label    *canvas.Text
+	selected bool
+}
+
+func makeTabButton(title string, onTap func()) *tabButton {
+	bg := canvas.NewRectangle(color.RGBA{R: 90, G: 90, B: 98, A: 255})
+	bg.SetMinSize(fyne.NewSize(72, 30))
+	label := canvas.NewText(title, color.RGBA{R: 255, G: 255, B: 255, A: 255})
+	label.Alignment = fyne.TextAlignCenter
+	label.TextStyle = fyne.TextStyle{Bold: true}
+	content := container.NewStack(bg, container.NewCenter(label))
+	button := newTappableImage(content, func(*fyne.PointEvent) {
+		if onTap != nil {
+			onTap()
+		}
+	})
+	return &tabButton{
+		widget: button,
+		bg:     bg,
+		label:  label,
+	}
+}
+
+func (t *tabButton) setSelected(selected bool) {
+	t.selected = selected
+	if selected {
+		t.bg.FillColor = color.RGBA{R: 44, G: 92, B: 148, A: 255}
+	} else {
+		t.bg.FillColor = color.RGBA{R: 90, G: 90, B: 98, A: 255}
+	}
+	t.bg.Refresh()
+	t.label.Color = color.RGBA{R: 255, G: 255, B: 255, A: 255}
+	t.label.Refresh()
+}
+
+func toTabCanvasObjects(buttons []*tabButton) []fyne.CanvasObject {
+	objects := make([]fyne.CanvasObject, 0, len(buttons))
+	for _, btn := range buttons {
+		objects = append(objects, btn.widget)
+	}
+	return objects
+}
+
 func encodeImageToWriter(w io.Writer, img image.Image, format string) error {
 	switch format {
 	case "PNG":