/*
* Copyright 2008-2009 Oliver Zoran
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.iplantc.phyloviewer.client.tree.viewer.canvas.impl;
import java.util.Stack;
/**
* The Mozilla/Firefox implementation of the canvas widget.
*/
public class CanvasImplMozilla extends CanvasImpl {
private Stack<Double> globalAlphaStack = new Stack<Double>();
private double globalAlpha = 1.0;
public void restore() {
super.restore();
if (!globalAlphaStack.isEmpty()) {
setGlobalAlpha(globalAlphaStack.pop());
}
}
public void save() {
super.save();
globalAlphaStack.push(globalAlpha);
}
public void setGlobalAlpha(double globalAlpha) {
super.setGlobalAlpha(globalAlpha);
this.globalAlpha = globalAlpha;
}
}