| /******************************************************************************* |
| * Copyright (c) 2008 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.wsdl.ui.internal.asd.design.editparts; |
| |
| import org.eclipse.gef.LayerConstants; |
| import org.eclipse.gef.editparts.AbstractGraphicalEditPart; |
| import org.eclipse.wst.wsdl.ui.internal.asd.design.figures.ComponentReferenceConnection; |
| |
| abstract public class BaseConnectedEditPart extends BaseEditPart |
| { |
| protected ComponentReferenceConnection connectionFigure; |
| protected ComponentReferenceConnection connectionFeedbackFigure; |
| |
| abstract protected AbstractGraphicalEditPart getConnectionTargetEditPart(); |
| |
| public ComponentReferenceConnection createConnectionFigure() |
| { |
| if (connectionFigure == null && shouldDrawConnection()) |
| { |
| AbstractGraphicalEditPart referenceTypePart = getConnectionTargetEditPart(); |
| if (referenceTypePart != null) |
| { |
| connectionFigure = new ComponentReferenceConnection(); |
| refreshConnections(); |
| } |
| } |
| return connectionFigure; |
| } |
| |
| protected boolean shouldDrawConnection() |
| { |
| AbstractGraphicalEditPart referenceTypePart = getConnectionTargetEditPart(); |
| return (referenceTypePart != null); |
| } |
| |
| public void activate() |
| { |
| super.activate(); |
| activateConnection(); |
| } |
| |
| public void deactivate() |
| { |
| super.deactivate(); |
| deactivateConnection(); |
| } |
| |
| protected void activateConnection() |
| { |
| if (createConnectionFigure() != null) |
| { |
| getLayer(LayerConstants.CONNECTION_LAYER).add(connectionFigure); |
| } |
| } |
| |
| protected void deactivateConnection() |
| { |
| if (connectionFigure != null) |
| { |
| getLayer(LayerConstants.CONNECTION_LAYER).remove(connectionFigure); |
| } |
| removeConnectionFeedbackFigure(); |
| } |
| |
| protected void addConnectionFeedbackFigure() |
| { |
| // remove any preexisting connection feedback figures first |
| removeConnectionFeedbackFigure(); |
| |
| connectionFeedbackFigure = new ComponentReferenceConnection(); |
| connectionFeedbackFigure.setSourceAnchor(connectionFigure.getSourceAnchor()); |
| connectionFeedbackFigure.setTargetAnchor(connectionFigure.getTargetAnchor()); |
| connectionFeedbackFigure.setHighlight(true); |
| getLayer(LayerConstants.FEEDBACK_LAYER).add(connectionFeedbackFigure); |
| } |
| |
| protected void removeConnectionFeedbackFigure() |
| { |
| if (connectionFeedbackFigure != null) |
| { |
| connectionFeedbackFigure.setHighlight(false); |
| getLayer(LayerConstants.FEEDBACK_LAYER).remove(connectionFeedbackFigure); |
| connectionFeedbackFigure = null; |
| } |
| } |
| |
| public void addFeedback() |
| { |
| if (connectionFigure != null && connectionFigure.isVisible()) |
| { |
| connectionFigure.setHighlight(true); |
| addConnectionFeedbackFigure(); |
| } |
| } |
| |
| public void removeFeedback() |
| { |
| removeConnectionFeedbackFigure(); |
| if (connectionFigure != null) |
| connectionFigure.setHighlight(false); |
| } |
| } |