| /******************************************************************************* |
| * Copyright (c) 2008 Mathias Schaeffner 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: |
| * Mathias Schaeffner - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.rap.themeeditor; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.RGB; |
| import org.eclipse.swt.widgets.Display; |
| |
| /** |
| * Manager for holding instance of SWT Color object, and has the responsibility |
| * to dispose them when method dispose() is called. |
| */ |
| public class ColorRegistry { |
| |
| private Display display; |
| private Map colorMap; |
| |
| public ColorRegistry( final Display display ) { |
| colorMap = new HashMap(); |
| this.display = display; |
| } |
| |
| public Color getColor( final RGB rgb ) { |
| Color result = ( Color )colorMap.get( rgb ); |
| if( result == null ) { |
| result = new Color( display, rgb ); |
| colorMap.put( rgb, result ); |
| } |
| return result; |
| } |
| |
| public void dispose() { |
| Iterator iterator = colorMap.values().iterator(); |
| while( iterator.hasNext() ) { |
| Color color = ( Color )iterator.next(); |
| color.dispose(); |
| } |
| } |
| } |