| /****************************************************************************** |
| * Copyright (c) 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.examples.runtime.diagram.logic.internal.figures; |
| |
| import org.eclipse.draw2d.Graphics; |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.draw2d.geometry.PointList; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.gmf.runtime.draw2d.ui.mapmode.IMapMode; |
| import org.eclipse.gmf.runtime.draw2d.ui.mapmode.MapModeUtil; |
| import org.eclipse.gmf.runtime.gef.ui.figures.NodeFigure; |
| |
| /** |
| * code copied from real logic example in gef |
| */ |
| /* |
| * @canBeSeenBy org.eclipse.gmf.examples.runtime.diagram.logic.* |
| */ |
| public class XOrGateFigure extends NodeFigure { |
| |
| private static final PointList outlinePoints = new PointList(); |
| private static final PointList topPoints = new PointList(); |
| |
| static { |
| //setup gate outline |
| outlinePoints.addPoint(2, 10); |
| outlinePoints.addPoint(2, 4); |
| outlinePoints.addPoint(4, 6); |
| outlinePoints.addPoint(6, 7); |
| outlinePoints.addPoint(7, 7); |
| outlinePoints.addPoint(8, 7); |
| outlinePoints.addPoint(10, 6); |
| outlinePoints.addPoint(12, 4); |
| outlinePoints.addPoint(12, 10); |
| |
| //setup top curve of gate |
| topPoints.addPoint(2, 2); |
| topPoints.addPoint(4, 4); |
| topPoints.addPoint(6, 5); |
| topPoints.addPoint(7, 5); |
| topPoints.addPoint(8, 5); |
| topPoints.addPoint(10, 4); |
| topPoints.addPoint(12, 2); |
| } |
| |
| private Dimension prefSize; |
| |
| /** |
| * Constructor for XOrGateFigure. |
| */ |
| public XOrGateFigure(Dimension prefSize) { |
| getBounds().width = prefSize.width; |
| getBounds().height = prefSize.height; |
| this.prefSize = new Dimension(prefSize); |
| } |
| |
| /** |
| * @see org.eclipse.draw2d.Figure#getPreferredSize(int, int) |
| */ |
| public Dimension getPreferredSize(int wHint, int hHint) { |
| return new Dimension(prefSize); |
| } |
| |
| /** |
| * @see org.eclipse.draw2d.Figure#paintFigure(Graphics) |
| */ |
| protected void paintFigure(Graphics g) { |
| Rectangle r = getBounds().getCopy(); |
| |
| IMapMode mm = MapModeUtil.getMapMode(this); |
| r.translate(mm.DPtoLP(2), mm.DPtoLP(2)); |
| r.setSize(mm.DPtoLP(11), mm.DPtoLP(9)); |
| |
| //Draw an oval that represents the bottom arc |
| r.y += mm.DPtoLP(4); |
| |
| /* |
| * Draw the bottom gate arc. |
| * This is done with an oval. The oval overlaps the top |
| * arc of the gate, so this region is clipped. |
| */ |
| g.pushState(); |
| r.y++; |
| g.clipRect(r); |
| r.y--; |
| |
| r.width = r.width - mm.DPtoLP(1); |
| g.fillOval(r); |
| r.height--; |
| g.drawOval(r); |
| g.popState(); |
| |
| //Draw the gate outline and top curve |
| g.translate(getLocation()); |
| |
| PointList topLP = topPoints.getCopy(); |
| mm.DPtoLP(topLP); |
| g.drawPolyline(topLP); |
| |
| PointList outlineLP = outlinePoints.getCopy(); |
| mm.DPtoLP(outlineLP); |
| g.fillPolygon(outlineLP); |
| g.drawPolyline(outlineLP); |
| g.translate(getLocation().negate()); |
| } |
| } |