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Merge "ShapeNode with separate stroke and fill paints"
[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / image / impl / AbstractProviderProxy.java
1 /*******************************************************************************
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
3  * in Industry THTH ry.
4  * All rights reserved. This program and the accompanying materials
5  * are made available under the terms of the Eclipse Public License v1.0
6  * which accompanies this distribution, and is available at
7  * http://www.eclipse.org/legal/epl-v10.html
8  *
9  * Contributors:
10  *     VTT Technical Research Centre of Finland - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.g2d.image.impl;
13
14 import org.simantics.g2d.image.Image;
15 import org.simantics.utils.datastructures.cache.IProvider;
16
17 public abstract class AbstractProviderProxy implements IProvider<Image> {
18     protected IProvider<Image> source;
19     AbstractProviderProxy(IProvider<Image> source) {
20         this.source = source;
21     }
22     @Override
23     public int hashCode() {
24         return source.hashCode() + getClass().hashCode();
25     }
26     @Override
27     public boolean equals(Object obj) {
28         if (obj == null) return false;
29         if (!obj.getClass().equals(getClass())) return false;
30         return ((AbstractProviderProxy)obj).source.equals(source);
31     }
32 }
33