Added display resize event.

ui/allg5ui/renderer.go

@@ -52,6 +52,8 @@ func (r *Renderer) PushEvents(t ui.EventTarget, wait bool) {
 		switch e := ev.(type) {
 		case *allg5.DisplayCloseEvent:
 			t.Handle(&ui.DisplayCloseEvent{EventBase: eventBase(e)})
+		case *allg5.DisplayResizeEvent:
+			t.Handle(&ui.DisplayResizeEvent{EventBase: eventBase(e), Bounds: geom.RectF32(float32(e.X), float32(e.Y), float32(e.X+e.Width), float32(e.Y+e.Height))})
 		case *allg5.MouseButtonDownEvent:
 			t.Handle(&ui.MouseButtonDownEvent{MouseEvent: mouseEvent(e.MouseEvent), Button: ui.MouseButton(e.Button)})
 		case *allg5.MouseButtonUpEvent:

ui/event.go

@@ -6,6 +6,11 @@ type DisplayCloseEvent struct {
 	EventBase
 }
 
+type DisplayResizeEvent struct {
+	EventBase
+	Bounds geom.RectangleF32
+}
+
 type Event interface {
 	Stamp() float64
 }