| /******************************************************************************* |
| * Copyright (c) 2002 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v0.5 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v05.html |
| * |
| * Contributors: |
| * IBM - Initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.team.internal.ccvs.ui; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.jface.resource.CompositeImageDescriptor; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.Point; |
| |
| /** |
| * An OverlayIcon consists of a main icon and several adornments. |
| */ |
| public abstract class OverlayIcon extends CompositeImageDescriptor { |
| // the base image |
| private Image base; |
| // the overlay images |
| private ImageDescriptor[] overlays; |
| // the size |
| private Point size; |
| |
| /** |
| * OverlayIcon constructor. |
| * |
| * @param base the base image |
| * @param overlays the overlay images |
| * @param size the size |
| */ |
| public OverlayIcon(Image base, ImageDescriptor[] overlays, Point size) { |
| this.base = base; |
| this.overlays = overlays; |
| this.size = size; |
| } |
| /** |
| * Superclasses override to draw the overlays. |
| */ |
| protected abstract void drawOverlays(ImageDescriptor[] overlays); |
| |
| public boolean equals(Object o) { |
| if (! (o instanceof OverlayIcon)) return false; |
| OverlayIcon other = (OverlayIcon) o; |
| return base.equals(other.base) && Arrays.equals(overlays, other.overlays); |
| } |
| |
| public int hashCode() { |
| int code = base.hashCode(); |
| for (int i = 0; i < overlays.length; i++) { |
| code ^= overlays[i].hashCode(); |
| } |
| return code; |
| } |
| |
| |
| protected void drawCompositeImage(int width, int height) { |
| drawImage(base.getImageData(), 0, 0); |
| drawOverlays(overlays); |
| } |
| |
| protected Point getSize() { |
| return size; |
| } |
| } |