gui button bugfix posted by TomiZ

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@880 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CGUIButton.cpp

@@ -250,7 +250,7 @@ void CGUIButton::draw()
 			pos.X -= PressedImageRect.getWidth() / 2;
 			pos.Y -= PressedImageRect.getHeight() / 2;
 			// patch by Alan Tyndall/Jonas Petersen
-			if (Image == PressedImage)
+			if (Image == PressedImage && PressedImageRect == ImageRect)
 			{
 				pos.X += 1;
 				pos.Y += 1;