| /******************************************************************************* |
| * 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.update.internal.ui.parts; |
| |
| import org.eclipse.jface.resource.*; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * An OverlayIcon consists of a main icon and several adornments. |
| */ |
| public class OverlayIcon extends CompositeImageDescriptor { |
| |
| static final int DEFAULT_WIDTH= 16; |
| static final int DEFAULT_HEIGHT= 16; |
| |
| private Point fSize= null; |
| |
| private ImageDescriptor fBase; |
| private ImageDescriptor fOverlays[][]; |
| |
| public OverlayIcon(ImageDescriptor base, ImageDescriptor[][] overlays) { |
| fBase= base; |
| if (fBase == null) |
| fBase= ImageDescriptor.getMissingImageDescriptor(); |
| fOverlays= overlays; |
| fSize= new Point(DEFAULT_WIDTH, DEFAULT_HEIGHT); |
| } |
| public OverlayIcon(ImageDescriptor base, ImageDescriptor[][] overlays, Point size) { |
| fBase= base; |
| if (fBase == null) |
| fBase= ImageDescriptor.getMissingImageDescriptor(); |
| fOverlays= overlays; |
| fSize= size; |
| } |
| protected void drawBottomLeft(ImageDescriptor[] overlays) { |
| if (overlays == null) |
| return; |
| int length= overlays.length; |
| int x= 0; |
| for (int i= 0; i < 3; i++) { |
| if (i < length && overlays[i] != null) { |
| ImageData id= overlays[i].getImageData(); |
| drawImage(id, x, getSize().y-id.height); |
| x+= id.width; |
| } |
| } |
| } |
| protected void drawBottomRight(ImageDescriptor[] overlays) { |
| if (overlays == null) |
| return; |
| int length= overlays.length; |
| int x= getSize().x; |
| for (int i= 2; i >= 0; i--) { |
| if (i < length && overlays[i] != null) { |
| ImageData id= overlays[i].getImageData(); |
| x-= id.width; |
| drawImage(id, x, getSize().y-id.height); |
| } |
| } |
| } |
| protected void drawCompositeImage(int width, int height) { |
| ImageData bg= fBase.getImageData(); |
| drawImage(bg, 0, 0); |
| |
| if (fOverlays != null) { |
| if (fOverlays.length > 0) |
| drawTopRight( fOverlays[0]); |
| |
| if (fOverlays.length > 1) |
| drawBottomRight(fOverlays[1]); |
| |
| if (fOverlays.length > 2) |
| drawBottomLeft(fOverlays[2]); |
| |
| if (fOverlays.length > 3) |
| drawTopLeft(fOverlays[3]); |
| } |
| } |
| protected void drawTopLeft(ImageDescriptor[] overlays) { |
| if (overlays == null) |
| return; |
| int length= overlays.length; |
| int x= 0; |
| for (int i= 0; i < 3; i++) { |
| if (i < length && overlays[i] != null) { |
| ImageData id= overlays[i].getImageData(); |
| drawImage(id, x, 0); |
| x+= id.width; |
| } |
| } |
| } |
| protected void drawTopRight(ImageDescriptor[] overlays) { |
| if (overlays == null) |
| return; |
| int length= overlays.length; |
| int x= getSize().x; |
| for (int i= 2; i >= 0; i--) { |
| if (i < length && overlays[i] != null) { |
| ImageData id= overlays[i].getImageData(); |
| x-= id.width; |
| drawImage(id, x, 0); |
| } |
| } |
| } |
| |
| protected Point getSize() { |
| return fSize; |
| } |
| } |