| /****************************************************************************** |
| * Copyright (c) 2002, 2003 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.gmf.runtime.draw2d.ui.render.internal; |
| |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.gmf.runtime.draw2d.ui.render.RenderedImage; |
| |
| /** |
| * @author sshaw |
| * @canBeSeenBy org.eclipse.gmf.runtime.draw2d.ui.render.* |
| * |
| * Interface for drawing a rendered image. |
| */ |
| public interface DrawableRenderedImage { |
| |
| /** |
| * @return <code>true</code> if the implementor can support a delayed rendering |
| * of the <code>RenderedImage</code>. Implementors should return <code>false</code> |
| * if they need the rendering to occur immediately. |
| */ |
| public boolean shouldAllowDelayRender(); |
| |
| /** |
| * @return <code>Dimension<code> that is the maximum size in pixels |
| * that a rendered image will be rendered at. This is useful to |
| * ensure adequate performance for display. If <code>null</code> |
| * is returned, then this means no maximum render size is imposed. |
| */ |
| public Dimension getMaximumRenderSize(); |
| |
| /** |
| * Draws the given RenderedImage at the location (x,y) with a |
| * width and height. |
| * @param srcImage the Image |
| * @param area the <code>Rectangle</code> in logical units to draw the image in |
| * @return the <code>RenderedImage</code> that was finally rendered to the device |
| */ |
| public abstract RenderedImage drawRenderedImage( |
| RenderedImage srcImage, Rectangle area, RenderingListener listener); |
| |
| } |