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/*******************************************************************************
* 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.common.frameworks.internal.ui;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.Point;
public class OverlayIcon extends org.eclipse.jface.resource.CompositeImageDescriptor {
// //$NON-NLS-1$
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;
}
}
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