| /******************************************************************************* |
| * Copyright (c) 2003, 2005 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.wst.server.ui.internal; |
| |
| import org.eclipse.debug.ui.DebugUITools; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| import org.eclipse.jface.resource.CompositeImageDescriptor; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.ImageData; |
| import org.eclipse.swt.graphics.Point; |
| /** |
| * A OverlayImageDescriptor consists of a main icon and one or more overlays. |
| * The overlays are computed according to flags set on creation of the descriptor. |
| */ |
| public class OverlayImageDescriptor extends CompositeImageDescriptor { |
| // flag to render the error overlay |
| public final static int ERROR = 0x001; |
| |
| private Image fBaseImage; |
| private int fFlags; |
| private Point fSize; |
| |
| /** |
| * Create a new OverlayImageDescriptor. |
| * |
| * @param baseImage an image descriptor used as the base image |
| * @param flags flags indicating which adornments are to be rendered |
| */ |
| public OverlayImageDescriptor(Image baseImage, int flags) { |
| setBaseImage(baseImage); |
| setFlags(flags); |
| } |
| |
| /** |
| * @see CompositeImageDescriptor#getSize() |
| */ |
| protected Point getSize() { |
| if (fSize == null) { |
| ImageData data = getBaseImage().getImageData(); |
| setSize(new Point(data.width, data.height)); |
| } |
| return fSize; |
| } |
| |
| /** |
| * @see Object#equals(java.lang.Object) |
| */ |
| public boolean equals(Object object) { |
| if (!(object instanceof OverlayImageDescriptor)) |
| return false; |
| |
| OverlayImageDescriptor other = (OverlayImageDescriptor) object; |
| return (getBaseImage().equals(other.getBaseImage()) && getFlags() == other.getFlags()); |
| } |
| |
| /** |
| * @see Object#hashCode() |
| */ |
| public int hashCode() { |
| return getBaseImage().hashCode() | getFlags(); |
| } |
| |
| /** |
| * @see CompositeImageDescriptor#drawCompositeImage(int, int) |
| */ |
| protected void drawCompositeImage(int width, int height) { |
| ImageData bg = getBaseImage().getImageData(); |
| if (bg == null) |
| bg = DEFAULT_IMAGE_DATA; |
| |
| drawImage(bg, 0, 0); |
| drawOverlays(); |
| } |
| |
| /** |
| * Add any overlays to the image as specified in the flags. |
| */ |
| protected void drawOverlays() { |
| int flags = getFlags(); |
| ImageData data = null; |
| if ((flags & ERROR) != 0) { |
| data = DebugUITools.getImage(IDebugUIConstants.IMG_OVR_ERROR).getImageData(); |
| int x = getSize().x - data.width; |
| drawImage(data, x, 0); |
| } |
| } |
| |
| protected Image getBaseImage() { |
| return fBaseImage; |
| } |
| |
| protected void setBaseImage(Image baseImage) { |
| fBaseImage = baseImage; |
| } |
| |
| protected int getFlags() { |
| return fFlags; |
| } |
| |
| protected void setFlags(int flags) { |
| fFlags = flags; |
| } |
| |
| protected void setSize(Point size) { |
| fSize = size; |
| } |
| } |