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