| /****************************************************************************** |
| * Copyright (c) 2002, 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 API and implementation |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.diagram.ui.editpolicies; |
| |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.draw2d.ColorConstants; |
| import org.eclipse.draw2d.FigureUtilities; |
| import org.eclipse.draw2d.Graphics; |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.draw2d.RectangleFigure; |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.draw2d.geometry.Point; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.gef.AccessibleHandleProvider; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.gmf.runtime.common.core.command.CommandResult; |
| import org.eclipse.gmf.runtime.common.core.command.ICommand; |
| import org.eclipse.gmf.runtime.diagram.core.internal.commands.IPropertyValueDeferred; |
| import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil; |
| import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy; |
| import org.eclipse.gmf.runtime.diagram.ui.commands.SetBoundsCommand; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.internal.requests.ChangeBoundsDeferredRequest; |
| import org.eclipse.gmf.runtime.diagram.ui.l10n.DiagramUIMessages; |
| import org.eclipse.gmf.runtime.diagram.ui.requests.RequestConstants; |
| import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand; |
| import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter; |
| import org.eclipse.gmf.runtime.notation.NotationPackage; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| /** |
| * A resizable editpolicy for resizable shape editparts 1- It customizes the |
| * selection handles 2- It handles the autosize and deferred change bounds |
| * request |
| * |
| * @author melaasar |
| */ |
| public class ResizableShapeEditPolicy |
| extends ResizableEditPolicyEx { |
| |
| /** |
| * Cfreates a new AutoSize comamnd |
| * |
| * @param request |
| * @return command |
| */ |
| protected Command getAutoSizeCommand(Request request) { |
| TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost()).getEditingDomain(); |
| ICommand resizeCommand = new SetBoundsCommand(editingDomain, |
| DiagramUIMessages.SetAutoSizeCommand_Label, |
| new EObjectAdapter((View) getHost().getModel()), new Dimension(-1, |
| -1)); |
| return new ICommandProxy(resizeCommand); |
| } |
| |
| /** |
| * Method getMoveDeferredCommand. |
| * |
| * @param request |
| * @return Command |
| */ |
| protected Command getMoveDeferredCommand(ChangeBoundsDeferredRequest request) { |
| final class SetDeferredPropertyCommand |
| extends AbstractTransactionalCommand { |
| |
| private IAdaptable newValue; |
| |
| private IAdaptable viewAdapter; |
| |
| /** |
| * constructor |
| * |
| * @param editingDomain |
| * the editing domain through which model changes are made |
| * @param label |
| * @param viewAdapter |
| * @param newValue |
| */ |
| public SetDeferredPropertyCommand(TransactionalEditingDomain editingDomain, String label, |
| IAdaptable viewAdapter, IAdaptable newValue) { |
| super(editingDomain, label, null); |
| this.viewAdapter = viewAdapter; |
| this.newValue = newValue; |
| } |
| |
| protected CommandResult doExecuteWithResult( |
| IProgressMonitor progressMonitor, IAdaptable info) |
| throws ExecutionException { |
| |
| if (null == viewAdapter || null == newValue) |
| return CommandResult.newCancelledCommandResult(); |
| |
| View view = (View) viewAdapter.getAdapter(View.class); |
| Point p = (Point) newValue |
| .getAdapter(IPropertyValueDeferred.class); |
| ViewUtil.setStructuralFeatureValue(view, NotationPackage.eINSTANCE.getLocation_X(), |
| new Integer(p.x)); |
| ViewUtil.setStructuralFeatureValue(view, NotationPackage.eINSTANCE.getLocation_Y(), |
| new Integer(p.y)); |
| |
| // clear for garbage collection |
| viewAdapter = null; |
| newValue = null; |
| return CommandResult.newOKCommandResult(); |
| } |
| } |
| View view = (View) getHost().getModel(); |
| |
| TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost()) |
| .getEditingDomain(); |
| |
| SetDeferredPropertyCommand cmd = new SetDeferredPropertyCommand(editingDomain, |
| DiagramUIMessages.ResizableShapeEditPolicy_MoveDeferredCommand_label, |
| new EObjectAdapter(view), request |
| .getLocationAdapter()); |
| return new ICommandProxy(cmd); |
| } |
| |
| public Command getCommand(Request request) { |
| if (RequestConstants.REQ_AUTOSIZE.equals(request.getType())) |
| return getAutoSizeCommand(request); |
| if (RequestConstants.REQ_MOVE_DEFERRED.equals(request.getType())) |
| return getMoveDeferredCommand((ChangeBoundsDeferredRequest) request); |
| return super.getCommand(request); |
| } |
| |
| public boolean understandsRequest(Request request) { |
| if (RequestConstants.REQ_AUTOSIZE.equals(request.getType()) |
| || RequestConstants.REQ_MOVE_DEFERRED.equals(request.getType())) |
| return true; |
| return super.understandsRequest(request); |
| } |
| |
| /** |
| * Creates the figure used for feedback. |
| * |
| * @return the new feedback figure |
| */ |
| protected IFigure createDragSourceFeedbackFigure() { |
| // Use a ghost rectangle for feedback |
| RectangleFigure r = new RectangleFigure(); |
| FigureUtilities.makeGhostShape(r); |
| r.setLineStyle(Graphics.LINE_DOT); |
| r.setForegroundColor(ColorConstants.white); |
| r.setBounds(getInitialFeedbackBounds()); |
| addFeedback(r); |
| return r; |
| } |
| |
| /** |
| * Override for AccessibleHandleProvider when deactivated |
| * https://bugs.eclipse.org/bugs/show_bug.cgi?id=69316 |
| */ |
| public Object getAdapter(Class key) { |
| if (key == AccessibleHandleProvider.class) |
| // handles == null when deactivated |
| if (handles == null) { |
| return null; |
| } |
| return super.getAdapter(key); |
| } |
| } |