org.eclipse.viatra2.visualisation/src/org/eclipse/viatra2/visualisation/common/labelproviders/internal/ImageCenteringFigure.java

/*******************************************************************************
 * Copyright (c) 2010-2011, Istvan Rath and Zoltan Ujhelyi
 * 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:
 *   Istvan Rath - initial API and implementation
 *******************************************************************************/

package org.eclipse.viatra2.visualisation.common.labelproviders.internal;

import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.Shape;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.swt.graphics.Image;

/**
 * Figure class centering an Image and a Label below it.
 * @author Istvan Rath
 *
 */
public class ImageCenteringFigure extends ShapeCenteringFigure
{

	private Image im;
	
	public ImageCenteringFigure(boolean needBorder, Image image,String labelText,IFigure tooltip) 
	{
		super(needBorder,labelText,tooltip);
		im = image;
	}
	
	public ImageCenteringFigure(Image image,String labelText,IFigure tooltip) 
	{
		super(false,labelText,tooltip);
		im = image;
	}

	/*
	@Override
	protected void createAnchors() 
	{
		iIncomingAnchor = new ChopboxAnchor(iShapeFigure);
		iOutgoingAnchor = new ChopboxAnchor(iShapeFigure);
	}
	 */
	/**
	 * Override in subclasses if not original image file size is desired.
	 * @return
	 */
	protected Dimension getShapeDimension()
	{
		if (im!=null)
		{
			org.eclipse.swt.graphics.Rectangle bounds = im.getBounds();
			return new Dimension(bounds.width, bounds.height);
		}
		return new Dimension(50,50);
	}
	
	public class ImageShape extends Shape
	{
		@Override
		protected void fillShape(Graphics graphics) 
		{
			Rectangle ca = ImageShape.this.getClientArea();
			org.eclipse.swt.graphics.Rectangle bounds = im.getBounds();
			graphics.drawImage(im,
					0,0,
					bounds.width, bounds.height,
					ca.x, ca.y,
					ca.width, ca.height
					);
		}
		@Override
		protected void outlineShape(Graphics graphics) {
			// outline is empty			
		}
	}
	
	@Override
	protected void createShapeFigure() 
	{
        iShapeFigure = new ImageShape();
		iShapeFigure.setOpaque(false);
		iShapeFigure.setBackgroundColor(ColorFactory.getColor(239,235,231));
		iShapeFigure.setForegroundColor(ColorFactory.getColor(70,70,70));
		iShapeFigure.setSize(getShapeDimension());
	}




}