refactor(renderer): improve mouse event handling in ScrollArea and CustomWindowPanel

src/main/java/de/extio/game_engine/renderer/container/ScrollArea.java

@@ -83,6 +83,10 @@ public class ScrollArea implements WindowComponent {
 	
 	protected void onMouseWheelEvent(final MouseClickEvent event) {
 		if (event.getButton() == 4 || event.getButton() == 5) {
+			if (Window.getContainerUnderCursor(event) != this.parent) {
+				return;
+			}
+			
 			if (!SpatialUtils2.intersects(
 					this.relativeArea.getPosition().add(this.parent.getAbsolutePosition()),
 					this.relativeArea.getDimension(),

src/main/java/de/extio/game_engine/renderer/container/Window.java

@@ -213,7 +213,7 @@ public class Window extends AbstractClientModule implements InitializingBean {
 	}
 	
 	protected void onMouseClickEvent(final MouseClickEvent event) {
-		final Window containerUnderCursor = this.getContainerUnderCursor(event);
+		final Window containerUnderCursor = getContainerUnderCursor(event);
 		if (containerUnderCursor == this) {
 			if (event.isPressed() && !this.dragging) {
 				this.zIndexToTop();
@@ -355,7 +355,7 @@ public class Window extends AbstractClientModule implements InitializingBean {
 		return this.normalizedArea.getDimension().toImmutableCoordI2();
 	}
 	
-	private Window getContainerUnderCursor(final MouseEvent event) {
+	public static Window getContainerUnderCursor(final MouseEvent event) {
 		Window containerUnderCursor = null;
 		synchronized (DISPLAYED_CONTAINERS) {
 			short zIndexHighest = -1;

src/main/java/de/extio/game_engine/renderer/g2d/control/components/CustomWindowPanel.java

@@ -92,6 +92,7 @@ public class CustomWindowPanel extends Component {
 			public void mouseWheelMoved(final MouseWheelEvent e) {
 				if (CustomWindowPanel.this.getParent() instanceof final G2DMainFrame mainFrame) {
 					mainFrame.handleWheelMoved(e, ImmutableCoordI2.create(CustomWindowPanel.this.getX(), CustomWindowPanel.this.getY()));
+					e.consume();
 				}
 			}
 		});