/*******************************************************************************

 * Copyright (c) 2004, 2008 Tasktop Technologies 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:

 *     Tasktop Technologies - initial API and implementation

 *******************************************************************************/

package com.nokia.carbide.remoteconnections.internal.ui.mylyn;

import org.eclipse.jface.resource.CompositeImageDescriptor;

import org.eclipse.jface.resource.ImageDescriptor;

import org.eclipse.swt.graphics.ImageData;

import org.eclipse.swt.graphics.Point;

/**

 * @author Mik Kersten

 */

public class TaskListImageDescriptor extends CompositeImageDescriptor {

	private final ImageData base;

	private ImageData overlay;

	private boolean top;

	private boolean left;

	protected Point size;

	public TaskListImageDescriptor(ImageDescriptor baseDesc, ImageDescriptor overlayDesc, boolean top, boolean left) {

		this.base = getImageData(baseDesc);

		this.top = top;

		this.left = left;

		if (overlayDesc != null) {

			this.overlay = getImageData(overlayDesc);

		}

		Point size = new Point(base.width, base.height);

		setImageSize(size);

	}

	public TaskListImageDescriptor(ImageDescriptor baseDesc, Point size) {

		this.base = getImageData(baseDesc);

		setImageSize(size);

	}

	@Override

	protected void drawCompositeImage(int width, int height) {

		drawImage(base, 0, 0);

		int x = 0;

		int y = 0;

		if (!left) {

			x = 8;// base.width - overlay.width;

		}

		if (!top) {

			y = 8;// base.height - overlay.height;

		}

		if (overlay != null) {

			drawImage(overlay, x, y);

		}

	}

	private ImageData getImageData(ImageDescriptor descriptor) {

		ImageData data = descriptor.getImageData();

		// see bug 51965: getImageData can return null

		if (data == null) {

			data = DEFAULT_IMAGE_DATA;

		}

		return data;

	}

	public void setImageSize(Point size) {

		this.size = size;

	}

	@Override

	protected Point getSize() {

		return new Point(size.x, size.y);

	}

}