| /****************************************************************************** |
| * Copyright (c) 2003, 2004 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.diagram.ui.geoshapes.internal.draw2d.figures; |
| |
| import org.eclipse.draw2d.geometry.Point; |
| import org.eclipse.draw2d.geometry.PointList; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| |
| /** |
| * @author jschofie |
| * |
| * This Figure represents a Diamond Figure |
| */ |
| public class GeoShapeDiamondFigure extends GeoShapePolygonFigure { |
| |
| /** |
| * Constructor - Creates a diamond with a given Default size |
| * |
| * @param width initial width of the figure |
| * @param height initial height of the figure |
| * @param spacing <code>int</code> that is the margin between children in logical units |
| */ |
| public GeoShapeDiamondFigure(int width, int height, int spacing) { |
| super(width, height, spacing); |
| } |
| |
| |
| /** |
| * This method is used to compute the shapes polygon points. |
| * This is currently based on the shapes bounding box. |
| * |
| * @param rect the rectangle that the shape will fit in |
| */ |
| protected PointList calculatePoints(Rectangle rect) { |
| PointList points = new PointList(); |
| |
| int halfX = rect.x + (rect.width / 2); |
| int halfY = rect.y + (rect.height / 2); |
| |
| Point p1 = new Point( halfX, rect.y ); |
| Point p2 = new Point( rect.x + rect.width - 1, halfY ); |
| Point p3 = new Point( halfX, rect.y + rect.height - 1 ); |
| Point p4 = new Point( rect.x, halfY ); |
| |
| points.addPoint( p1 ); |
| points.addPoint( p2 ); |
| points.addPoint( p3 ); |
| points.addPoint( p4 ); |
| points.addPoint( p1 ); |
| |
| return points; |
| } |
| |
| } |