| /******************************************************************************* |
| * Copyright (c) 2000, 2011 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.compare.internal.patch; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.jface.resource.CompositeImageDescriptor; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.IDecoration; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * An DecoratorOverlayIcon consists of a main icon and several adornments. |
| * Copied until bug 164394 is resolved. |
| */ |
| class DecoratorOverlayIcon extends CompositeImageDescriptor { |
| // the base image |
| private Image base; |
| |
| // the overlay images |
| private ImageDescriptor[] overlays; |
| |
| // the size |
| private Point size; |
| |
| |
| /** |
| * OverlayIcon constructor. |
| * |
| * @param baseImage the base image |
| * @param overlaysArray the overlay images |
| * @param sizeValue the size |
| */ |
| public DecoratorOverlayIcon(Image baseImage, |
| ImageDescriptor[] overlaysArray, Point sizeValue) { |
| this.base = baseImage; |
| this.overlays = overlaysArray; |
| this.size = sizeValue; |
| } |
| |
| /** |
| * Draw the overlays for the receiver. |
| * @param overlaysArray the overlay images |
| */ |
| protected void drawOverlays(ImageDescriptor[] overlaysArray) { |
| |
| for (int i = 0; i < overlays.length; i++) { |
| ImageDescriptor overlay = overlaysArray[i]; |
| if (overlay == null) { |
| continue; |
| } |
| ImageData overlayData = overlay.getImageData(); |
| //Use the missing descriptor if it is not there. |
| if (overlayData == null) { |
| overlayData = ImageDescriptor.getMissingImageDescriptor() |
| .getImageData(); |
| } |
| switch (i) { |
| case IDecoration.TOP_LEFT: |
| drawImage(overlayData, 0, 0); |
| break; |
| case IDecoration.TOP_RIGHT: |
| drawImage(overlayData, size.x - overlayData.width, 0); |
| break; |
| case IDecoration.BOTTOM_LEFT: |
| drawImage(overlayData, 0, size.y - overlayData.height); |
| break; |
| case IDecoration.BOTTOM_RIGHT: |
| drawImage(overlayData, size.x - overlayData.width, size.y |
| - overlayData.height); |
| break; |
| } |
| } |
| } |
| |
| public boolean equals(Object o) { |
| if (!(o instanceof DecoratorOverlayIcon)) { |
| return false; |
| } |
| DecoratorOverlayIcon other = (DecoratorOverlayIcon) 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++) { |
| if (overlays[i] != null) { |
| code ^= overlays[i].hashCode(); |
| } |
| } |
| return code; |
| } |
| |
| protected void drawCompositeImage(int width, int height) { |
| ImageDescriptor underlay = overlays[IDecoration.UNDERLAY]; |
| if (underlay != null) { |
| drawImage(underlay.getImageData(), 0, 0); |
| } |
| drawImage(base.getImageData(), 0, 0); |
| drawOverlays(overlays); |
| } |
| |
| protected Point getSize() { |
| return size; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.resource.CompositeImageDescriptor#getTransparentPixel() |
| */ |
| protected int getTransparentPixel() { |
| return base.getImageData().transparentPixel; |
| } |
| |
| } |