groupnodeeditpolicy.java

对eclipse gef进行封装,可以生成图形化编辑器

/*******************************************************************************
 * $Header: /cvsroot/EOS6/work_dir/niegy/com.primeton.studio.gef.ui/src/com/primeton/studio/gef/ui/ui/policy/GroupNodeEditPolicy.java,v 1.2 2006/12/30 02:45:03 niegy Exp $
 * $Revision: 1.2 $
 * $Date: 2006/12/30 02:45:03 $
 *
 *==============================================================================
 *
 * Copyright (c) 2001-2006 Primeton Technologies, Ltd.
 * All rights reserved.
 * 
 * Created on 2006-12-6
 *******************************************************************************/


package com.primeton.studio.gef.ui.ui.policy;

import org.eclipse.draw2d.IFigure;
import org.eclipse.gef.LayerConstants;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy;
import org.eclipse.gef.requests.CreateConnectionRequest;
import org.eclipse.gef.requests.ReconnectRequest;

import com.primeton.studio.gef.core.NodeElement;
import com.primeton.studio.gef.ui.parts.NodeEditPartEx;

/**
 * TODO 此处填写 class 信息
 *
 * @author niegy (mailto:[e-mail])
 */
/*
 * 修改历史
 * $Log: GroupNodeEditPolicy.java,v $
 * Revision 1.2  2006/12/30 02:45:03  niegy
 * 重构代码
 *
 * Revision 1.1  2006/12/08 07:04:32  niegy
 * 重构代码
 * 
 */
public class GroupNodeEditPolicy extends GraphicalNodeEditPolicy {

	/* (non-Javadoc)
	 * @see org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy#getConnectionCompleteCommand(org.eclipse.gef.requests.CreateConnectionRequest)
	 */
	protected Command getConnectionCompleteCommand(
			CreateConnectionRequest request) {
		// TODO Auto-generated method stub
		return null;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy#getConnectionCreateCommand(org.eclipse.gef.requests.CreateConnectionRequest)
	 */
	protected Command getConnectionCreateCommand(CreateConnectionRequest request) {
		// TODO Auto-generated method stub
		return null;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy#getReconnectSourceCommand(org.eclipse.gef.requests.ReconnectRequest)
	 */
	protected Command getReconnectSourceCommand(ReconnectRequest request) {
		// TODO Auto-generated method stub
		return null;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy#getReconnectTargetCommand(org.eclipse.gef.requests.ReconnectRequest)
	 */
	protected Command getReconnectTargetCommand(ReconnectRequest request) {
		// TODO Auto-generated method stub
		return null;
	}

	protected NodeEditPartEx getGraphicalNodeEditPart(){
		return (NodeEditPartEx)getHost();
	}
	
	protected NodeElement getGraphicalNode(){
		return (NodeElement)getHost().getModel();
	}
	
	/**
	 * Feedback should be added to the scaled feedback layer.
	 * @see org.eclipse.gef.editpolicies.GraphicalEditPolicy#getFeedbackLayer()
	 */
	protected IFigure getFeedbackLayer() {
		return getLayer(LayerConstants.SCALED_FEEDBACK_LAYER);
	}
}