RoseFigure.java

/*******************************************************************************
 * Copyright (c) 2006-2012
 * Software Technology Group, Dresden University of Technology
 * DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026
 * 
 * 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:
 *   Software Technology Group - TU Dresden, Germany;
 *   DevBoost GmbH - Berlin, Germany
 *      - initial API and implementation
 ******************************************************************************/
/*
 * Copyright (c) 2007 Borland Software Corporation
 * 
 * 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:
 *    Dmitry Stadnik (Borland) - initial API and implementation
 */
package org.reuseware.application.taipan.figures;

import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.Shape;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Insets;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.PointList;
import org.eclipse.swt.graphics.Color;

/**
 * @author dstadnik
 */
public class RoseFigure extends Shape {

	private int bladeWidth;

	private int bladeHeight;

	private Color bladeDarkColour;

	private Color bladeLightColour;

	public RoseFigure() {
		this(7, 30);
	}

	public RoseFigure(int bladeWidth, int bladeHeight) {
		this.bladeWidth = bladeWidth;
		this.bladeHeight = bladeHeight;
	}

	public Color getBladeDarkColour() {
		return bladeDarkColour;
	}

	public void setBladeDarkColour(Color bladeDarkColour) {
		this.bladeDarkColour = bladeDarkColour;
	}

	public Color getBladeLightColour() {
		return bladeLightColour;
	}

	public void setBladeLightColour(Color bladeLightColour) {
		this.bladeLightColour = bladeLightColour;
	}

	public Dimension getMinimumSize(int wHint, int hHint) {
		Insets i = getInsets();
		int s = 2 * (bladeWidth + bladeHeight);
		return new Dimension(s, s).expand(i.getWidth(), i.getHeight());
	}

	public Dimension getMaximumSize(int wHint, int hHint) {
		Insets i = getInsets();
		int s = 2 * (bladeWidth + bladeHeight);
		return new Dimension(s, s).expand(i.getWidth(), i.getHeight());
	}

	public Dimension getPreferredSize(int wHint, int hHint) {
		Insets i = getInsets();
		int s = 2 * (bladeWidth + bladeHeight);
		return new Dimension(s, s).expand(i.getWidth(), i.getHeight());
	}

	protected void outlineShape(Graphics g) {
		Point c = getClientArea().getCenter();
		for (PointList pl : getLeftBlades(c)) {
			g.drawPolygon(pl);
		}
		for (PointList pl : getRightBlades(c)) {
			g.drawPolygon(pl);
		}
	}

	protected void fillShape(Graphics g) {
		Point c = getClientArea().getCenter();
		g.setBackgroundColor(bladeDarkColour != null ? bladeDarkColour : ColorConstants.black);
		for (PointList pl : getLeftBlades(c)) {
			g.fillPolygon(pl);
		}
		g.setBackgroundColor(bladeLightColour != null ? bladeLightColour : ColorConstants.white);
		for (PointList pl : getRightBlades(c)) {
			g.fillPolygon(pl);
		}
	}

	protected PointList[] getLeftBlades(Point c) {
		PointList[] blades = new PointList[4];
		{
			PointList pl = new PointList(3);
			pl.addPoint(c);
			pl.addPoint(c.x - bladeWidth, c.y - bladeWidth);
			pl.addPoint(c.x, c.y - bladeWidth - bladeHeight);
			blades[0] = pl;
		}
		{
			PointList pl = new PointList(3);
			pl.addPoint(c);
			pl.addPoint(c.x + bladeWidth, c.y - bladeWidth);
			pl.addPoint(c.x + bladeWidth + bladeHeight, c.y);
			blades[1] = pl;
		}
		{
			PointList pl = new PointList(3);
			pl.addPoint(c);
			pl.addPoint(c.x + bladeWidth, c.y + bladeWidth);
			pl.addPoint(c.x, c.y + bladeWidth + bladeHeight);
			blades[2] = pl;
		}
		{
			PointList pl = new PointList(3);
			pl.addPoint(c);
			pl.addPoint(c.x - bladeWidth, c.y + bladeWidth);
			pl.addPoint(c.x - bladeWidth - bladeHeight, c.y);
			blades[3] = pl;
		}
		return blades;
	}

	protected PointList[] getRightBlades(Point c) {
		PointList[] blades = new PointList[4];
		{
			PointList pl = new PointList(3);
			pl.addPoint(c);
			pl.addPoint(c.x + bladeWidth, c.y - bladeWidth);
			pl.addPoint(c.x, c.y - bladeWidth - bladeHeight);
			blades[0] = pl;
		}
		{
			PointList pl = new PointList(3);
			pl.addPoint(c);
			pl.addPoint(c.x + bladeWidth, c.y + bladeWidth);
			pl.addPoint(c.x + bladeWidth + bladeHeight, c.y);
			blades[1] = pl;
		}
		{
			PointList pl = new PointList(3);
			pl.addPoint(c);
			pl.addPoint(c.x - bladeWidth, c.y + bladeWidth);
			pl.addPoint(c.x, c.y + bladeWidth + bladeHeight);
			blades[2] = pl;
		}
		{
			PointList pl = new PointList(3);
			pl.addPoint(c);
			pl.addPoint(c.x - bladeWidth, c.y - bladeWidth);
			pl.addPoint(c.x - bladeWidth - bladeHeight, c.y);
			blades[3] = pl;
		}
		return blades;
	}
}