| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 2006 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 implementation |
| //------------------------------------------------------------------------------ |
| package org.eclipse.epf.authoring.gef.edit; |
| |
| import org.eclipse.draw2d.ConnectionAnchor; |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.draw2d.RectangleFigure; |
| import org.eclipse.draw2d.geometry.Point; |
| import org.eclipse.epf.authoring.gef.util.ConnectionAnchorLocator; |
| import org.eclipse.epf.diagram.model.Link; |
| import org.eclipse.epf.diagram.model.TypedNode; |
| import org.eclipse.gef.ConnectionEditPart; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.editpolicies.DirectEditPolicy; |
| import org.eclipse.gef.requests.CreateConnectionRequest; |
| import org.eclipse.gef.requests.LocationRequest; |
| import org.eclipse.swt.graphics.Color; |
| |
| /** |
| * Provides support for creating figure and creating relative anchors |
| * for {@link TypedNode.SYNC_BAR} |
| * @author Phong Nguyen Le |
| * @since 1.0 |
| */ |
| public class SynchBarNodeEditPart extends NodeEditPart implements |
| ConnectionAnchorLocator { |
| |
| private static final Color BG_COLOR = new Color(null, 51, 102, 102); |
| |
| private Point recentTargetEndPoint; |
| |
| private Point recentSourceEndPoint; |
| |
| public SynchBarNodeEditPart(TypedNode model) { |
| super(model); |
| } |
| |
| /** |
| * @see org.eclipse.epf.authoring.gef.edit.BaseEditPart#createDirectEditPolicy() |
| */ |
| protected DirectEditPolicy createDirectEditPolicy() { |
| return null; |
| } |
| |
| protected IFigure createFigure() { |
| RectangleFigure f = new RectangleFigure(); |
| f.setBackgroundColor(BG_COLOR); |
| f.setSize(100, 5); |
| return f; |
| } |
| |
| public ConnectionAnchor getSourceConnectionAnchor( |
| ConnectionEditPart connection) { |
| boolean isRelative = false; |
| Point sourceEndPoint = null; |
| if (recentSourceEndPoint == null) { |
| // get source end point from the model |
| Link link = (Link) connection.getModel(); |
| sourceEndPoint = link.getSourceEndPoint(); |
| isRelative = true; |
| } else { |
| sourceEndPoint = recentSourceEndPoint; |
| } |
| if (sourceEndPoint != null) { |
| return new RelativeXYAnchor(getFigure(), sourceEndPoint, isRelative); |
| } |
| return super.getSourceConnectionAnchor(connection); |
| } |
| |
| public ConnectionAnchor getSourceConnectionAnchor(Request request) { |
| Point p = null; |
| if (request instanceof CreateConnectionRequest) { |
| CreateConnectionRequest req = (CreateConnectionRequest) request; |
| p = req.getLocation(); |
| } else if (request instanceof LocationRequest) { |
| p = ((LocationRequest) request).getLocation(); |
| } |
| if (p != null) { |
| recentSourceEndPoint = getLocation(p); |
| return new RelativeXYAnchor(getFigure(), recentSourceEndPoint, true); |
| } |
| return super.getSourceConnectionAnchor(request); |
| } |
| |
| public ConnectionAnchor getTargetConnectionAnchor( |
| ConnectionEditPart connection) { |
| boolean isRelative = false; |
| Point targetEndPoint = null; |
| if (recentTargetEndPoint == null) { |
| Link link = (Link) connection.getModel(); |
| targetEndPoint = link.getTargetEndPoint(); |
| isRelative = true; |
| } else { |
| targetEndPoint = recentTargetEndPoint; |
| } |
| if (targetEndPoint != null) { |
| return new RelativeXYAnchor(getFigure(), targetEndPoint, isRelative); |
| } |
| |
| return super.getTargetConnectionAnchor(connection); |
| } |
| |
| public ConnectionAnchor getTargetConnectionAnchor(Request request) { |
| Point p = null; |
| if (request instanceof CreateConnectionRequest) { |
| CreateConnectionRequest req = (CreateConnectionRequest) request; |
| p = req.getLocation(); |
| } else if (request instanceof LocationRequest) { |
| p = ((LocationRequest) request).getLocation(); |
| } |
| if (p != null) { |
| recentTargetEndPoint = getLocation(p); |
| return new RelativeXYAnchor(getFigure(), recentTargetEndPoint, true); |
| } |
| |
| return super.getTargetConnectionAnchor(request); |
| } |
| |
| /** |
| * @see org.eclipse.epf.authoring.gef.util.ConnectionAnchorLocator#getLocation(Point) |
| */ |
| public Point getLocation(Point reference) { |
| return ClosestAnchor.getLocation(getFigure(), reference); |
| } |
| |
| } |