| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.draw2d; |
| |
| import org.eclipse.draw2d.geometry.Point; |
| |
| /** |
| * A transparent figure intended to be added exclusively to a |
| * {@link LayeredPane}, who has the responsibilty of managing its layers. |
| */ |
| public class Layer extends Figure { |
| |
| /** |
| * Overridden to implement transparent behavior. |
| * |
| * @see IFigure#containsPoint(int, int) |
| * |
| */ |
| public boolean containsPoint(int x, int y) { |
| if (isOpaque()) |
| return super.containsPoint(x, y); |
| Point pt = Point.SINGLETON; |
| pt.setLocation(x, y); |
| translateFromParent(pt); |
| x = pt.x; |
| y = pt.y; |
| for (int i = 0; i < getChildren().size(); i++) { |
| IFigure child = (IFigure) getChildren().get(i); |
| if (child.containsPoint(x, y)) |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Overridden to implement transparency. |
| * |
| * @see IFigure#findFigureAt(int, int, TreeSearch) |
| */ |
| public IFigure findFigureAt(int x, int y, TreeSearch search) { |
| if (!isEnabled()) |
| return null; |
| if (isOpaque()) |
| return super.findFigureAt(x, y, search); |
| |
| IFigure f = super.findFigureAt(x, y, search); |
| if (f == this) |
| return null; |
| return f; |
| } |
| |
| } |