| /******************************************************************************* |
| * Copyright (c) 2000, 2006 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.team.internal.ui; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.jface.resource.CompositeImageDescriptor; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * An OverlayIcon consists of a main icon and several adornments. |
| */ |
| public class OverlayIcon extends CompositeImageDescriptor { |
| // the base image |
| private Image base; |
| // the base as a descriptor |
| private ImageDescriptor descriptorBase; |
| // the overlay images |
| private ImageDescriptor[] overlays; |
| // the size |
| private Point size; |
| // the locations |
| private int[] locations; |
| |
| public static final int TOP_LEFT = 0; |
| public static final int TOP_RIGHT = 1; |
| public static final int BOTTOM_LEFT = 2; |
| public static final int BOTTOM_RIGHT = 3; |
| |
| public static final int DEFAULT_WIDTH= 22; |
| public static final int DEFAULT_HEIGHT= 16; |
| |
| /** |
| * OverlayIcon constructor. |
| * |
| * @param base the base image |
| * @param overlays the overlay images |
| * @param locations the location of each image |
| * @param size the size |
| */ |
| public OverlayIcon(Image base, ImageDescriptor[] overlays, int[] locations, Point size) { |
| this.base = base; |
| this.descriptorBase = null; |
| this.overlays = overlays; |
| this.locations = locations; |
| this.size = size; |
| } |
| |
| protected void drawOverlays(ImageDescriptor[] overlays, int[] locations) { |
| Point size = getSize(); |
| for (int i = 0; i < overlays.length; i++) { |
| ImageDescriptor overlay = overlays[i]; |
| ImageData overlayData = overlay.getImageData(); |
| switch (locations[i]) { |
| case TOP_LEFT: |
| drawImage(overlayData, 0, 0); |
| break; |
| case TOP_RIGHT: |
| drawImage(overlayData, size.x - overlayData.width, 0); |
| break; |
| case BOTTOM_LEFT: |
| drawImage(overlayData, 0, size.y - overlayData.height); |
| break; |
| case BOTTOM_RIGHT: |
| drawImage(overlayData, size.x - overlayData.width, size.y - overlayData.height); |
| break; |
| } |
| } |
| } |
| |
| 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) { |
| if(descriptorBase != null) { |
| ImageData bg; |
| if (descriptorBase == null || (bg= descriptorBase.getImageData()) == null) |
| bg= DEFAULT_IMAGE_DATA; |
| drawImage(bg, 0, 0); |
| } else { |
| drawImage(base.getImageData(), 0, 0); |
| } |
| drawOverlays(overlays, locations); |
| } |
| |
| protected Point getSize() { |
| return size; |
| } |
| } |