good except 1 mysterious NPE in SimplePainter on poll.

src/mightypork/gamecore/control/BaseApp.java

@@ -11,6 +11,7 @@ import mightypork.gamecore.audio.SoundSystem;
 import mightypork.gamecore.control.bus.EventBus;
 import mightypork.gamecore.control.bus.events.*;
 import mightypork.gamecore.control.interf.Destroyable;
+import mightypork.gamecore.control.timing.Pollable;
 import mightypork.gamecore.control.timing.Updateable;
 import mightypork.gamecore.gui.screens.ScreenRegistry;
 import mightypork.gamecore.input.InputSystem;
@@ -255,6 +256,7 @@ public abstract class BaseApp implements AppAccess, UncaughtExceptionHandler {
 		// framework events
 		bus.addChannel(DestroyEvent.class, Destroyable.class);
 		bus.addChannel(UpdateEvent.class, Updateable.class);
+		bus.addChannel(LayoutChangeEvent.class, Pollable.class);
 		
 		// input events
 		bus.addChannel(ScreenChangeEvent.class, ScreenChangeEvent.Listener.class);

src/mightypork/gamecore/gui/components/SimplePainter.java

@@ -1,9 +1,12 @@
 package mightypork.gamecore.gui.components;
 
 
+import mightypork.utils.annotations.DefaultImpl;
 import mightypork.utils.math.constraints.rect.Rect;
+import mightypork.utils.math.constraints.rect.RectAdapter;
 import mightypork.utils.math.constraints.rect.RectBound;
 import mightypork.utils.math.constraints.rect.RectBoundAdapter;
+import mightypork.utils.math.constraints.rect.RectCache;
 
 
 /**
@@ -11,10 +14,9 @@ import mightypork.utils.math.constraints.rect.RectBoundAdapter;
  * 
  * @author MightyPork
  */
-public abstract class SimplePainter extends RectBoundAdapter implements PluggableRenderable {
+public abstract class SimplePainter extends RectAdapter implements PluggableRenderable {
 	
-	@Override
-	public abstract void render();
+	private RectCache source;
 	
 	
 	@Override
@@ -27,6 +29,41 @@ public abstract class SimplePainter extends RectBoundAdapter implements Pluggabl
 	@Override
 	public void setRect(RectBound rect)
 	{
-		super.setRect(rect);
+		System.out.println("SP set rect");
+		this.source = new RectBoundAdapter(rect).cached();
+	}
+	
+	
+	@Override
+	protected Rect getSource()
+	{
+		return source;
+	}
+	
+	
+	/**
+	 * Poll bounds
+	 */
+	@Override
+	public final void poll()
+	{
+		System.out.println("SP poll, source: "+source);
+		source.poll();
+		super.poll();
+		
+		onPoll();
+	}
+	
+	
+	@Override
+	public abstract void render();
+	
+	
+	/**
+	 * Called after painter was polled; contained constraints can now poll too.
+	 */
+	@DefaultImpl
+	public void onPoll()
+	{
 	}
 }

src/mightypork/gamecore/gui/components/painters/TextPainter.java

@@ -141,5 +141,4 @@ public class TextPainter extends SimplePainter {
 	{
 		this.text = text;
 	}
-	
 }

src/mightypork/gamecore/gui/screens/Screen.java

@@ -3,6 +3,7 @@ package mightypork.gamecore.gui.screens;
 
 import mightypork.gamecore.control.AppAccess;
 import mightypork.gamecore.control.AppSubModule;
+import mightypork.gamecore.control.bus.events.LayoutChangeEvent;
 import mightypork.gamecore.control.bus.events.ScreenChangeEvent;
 import mightypork.gamecore.gui.components.Renderable;
 import mightypork.gamecore.input.KeyBinder;
@@ -99,6 +100,9 @@ public abstract class Screen extends AppSubModule implements Renderable, KeyBind
 		
 		onSizeChanged(event.getScreenSize());
 		
+		// poll constraints
+		getEventBus().sendDirectToChildren(this, new LayoutChangeEvent());
+		
 		needSetupViewport = true;
 	}