TreeBorder.java

/*******************************************************************************
 * Copyright (c) 2004, 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.gef.examples.text.figures;

import org.eclipse.swt.graphics.Image;

import org.eclipse.draw2d.AbstractBorder;
import org.eclipse.draw2d.FigureUtilities;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Insets;
import org.eclipse.draw2d.geometry.Rectangle;

/**
 * @since 3.1
 */
public class TreeBorder extends AbstractBorder {

private final Image image;
private final String text;
private Insets insets;

public TreeBorder(Image image, String text) {
	this.image = image;
	this.text = text;
}

public Insets getInsets(IFigure figure) {
	if (insets == null) {
		FigureUtilities.getTextExtents(text, figure.getFont(), Dimension.SINGLETON);
		insets = new Insets(Math.max(16, Dimension.SINGLETON.height), 9, 0, 0);
	}
	return insets;
}

public void paint(IFigure figure, Graphics g, Insets insets) {
	Rectangle where = getPaintRectangle(figure, insets);
	
	g.translate(where.x, where.y);

	for (int i = 16; i < where.height - 10; i += 2)
		g.drawPoint(9, i);
	
	g.drawImage(image, 0, 0);
	int h = FigureUtilities.getFontMetrics(g.getFont()).getHeight();
	g.drawText(text, 19, 16 - h);
}

}