feat: hit on primitives

client/canvas.go

@@ -18,7 +18,7 @@ type interactiveRaster struct {
 	onScrolled func(*fyne.ScrollEvent)
 	onDragged  func(*fyne.DragEvent)
 	onDragEnd  func()
-	onTapped   *fyne.PointEvent
+	onTapped   func(*fyne.PointEvent)
 }
 
 func (r *interactiveRaster) SetMinSize(size fyne.Size) {
@@ -40,17 +40,22 @@ func (r *interactiveRaster) CreateRenderer() fyne.WidgetRenderer {
 
 // Tapped is a left-click event
 func (r *interactiveRaster) Tapped(ev *fyne.PointEvent) {
-	x, y := int(ev.Position.X), int(ev.Position.Y)
-	size := r.raster.Size()
-	if x >= int(size.Width) || y >= int(size.Height) {
+	if r.onTapped == nil {
 		return
 	}
+	r.onTapped(ev)
 }
 
 // TappedSecondary is a right-click event
 func (r *interactiveRaster) TappedSecondary(*fyne.PointEvent) {}
 
-func newInteractiveRaster(edit *editor, raster *canvas.Raster, onLayout func(fyne.Size), onScrolled func(*fyne.ScrollEvent), onDragged func(*fyne.DragEvent), onDragEnd func()) *interactiveRaster {
+func newInteractiveRaster(edit *editor, raster *canvas.Raster,
+	onLayout func(fyne.Size),
+	onScrolled func(*fyne.ScrollEvent),
+	onDragged func(*fyne.DragEvent),
+	onDragEnd func(),
+	onTapped func(*fyne.PointEvent),
+) *interactiveRaster {
 	r := &interactiveRaster{
 		// raster:    canvas.NewRaster(edit.draw),
 		raster:     raster,
@@ -59,6 +64,7 @@ func newInteractiveRaster(edit *editor, raster *canvas.Raster, onLayout func(fyn
 		onScrolled: onScrolled,
 		onDragged:  onDragged,
 		onDragEnd:  onDragEnd,
+		onTapped:   onTapped,
 	}
 	r.ExtendBaseWidget(r)
 	return r