| /******************************************************************************* |
| * Copyright (c) 2001, 2007 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.wst.xsd.ui.internal.design.editpolicies; |
| |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.draw2d.Polyline; |
| import org.eclipse.draw2d.RectangleFigure; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.requests.ChangeBoundsRequest; |
| import org.eclipse.wst.xsd.ui.internal.adt.design.editpolicies.ADTSelectionFeedbackEditPolicy; |
| import org.eclipse.wst.xsd.ui.internal.commands.BaseDragAndDropCommand; |
| |
| public class SelectionHandlesEditPolicyImpl extends ADTSelectionFeedbackEditPolicy |
| { |
| protected IFigure feedback; |
| protected Rectangle originalLocation; |
| protected BaseDragAndDropCommand dragAndDropCommand; |
| protected Polyline polyLine; |
| protected RectangleFigure ghostShape; |
| |
| public boolean understandsRequest(Request request) |
| { |
| boolean result = false; |
| |
| if (REQ_MOVE.equals(request.getType())) |
| { |
| result = false; |
| } |
| else |
| { |
| result = super.understandsRequest(request); |
| } |
| return result; |
| } |
| |
| |
| public org.eclipse.gef.commands.Command getCommand(Request request) |
| { |
| return null; |
| } |
| |
| public void setDragAndDropCommand(BaseDragAndDropCommand dragAndDropCommand) |
| { |
| this.dragAndDropCommand = dragAndDropCommand; |
| } |
| |
| public void showSourceFeedback(Request request) |
| { |
| eraseChangeBoundsFeedback(null); |
| if (dragAndDropCommand != null && dragAndDropCommand.canExecute()) { |
| if (REQ_MOVE.equals(request.getType()) || REQ_ADD.equals(request.getType())) { |
| if (dragAndDropCommand != null && dragAndDropCommand.getFeedbackFigure() != null) { |
| feedback = dragAndDropCommand.getFeedbackFigure(); |
| addFeedback(feedback); |
| } |
| } |
| } |
| } |
| |
| public void deactivate() |
| { |
| if (feedback != null) |
| { |
| removeFeedback(feedback); |
| feedback = null; |
| } |
| hideFocus(); |
| super.deactivate(); |
| } |
| |
| /** |
| * Erase feedback indicating that the receiver object is |
| * being dragged. This method is called when a drag is |
| * completed or cancelled on the receiver object. |
| * @param dragTracker org.eclipse.gef.tools.DragTracker The drag tracker of the tool performing the drag. |
| */ |
| protected void eraseChangeBoundsFeedback(ChangeBoundsRequest request) |
| { |
| if (feedback != null) |
| { |
| removeFeedback(feedback); |
| } |
| feedback = null; |
| originalLocation = null; |
| } |
| |
| /** |
| * Erase feedback indicating that the receiver object is |
| * being dragged. This method is called when a drag is |
| * completed or cancelled on the receiver object. |
| * @param dragTracker org.eclipse.gef.tools.DragTracker The drag tracker of the tool performing the drag. |
| */ |
| public void eraseSourceFeedback(Request request) |
| { |
| if (REQ_MOVE.equals(request.getType()) || REQ_ADD.equals(request.getType())) |
| { |
| eraseChangeBoundsFeedback((ChangeBoundsRequest)request); |
| } |
| } |
| |
| } |