nodeeditpolicy.java

GEF初学者可以用来对照的小例子

/*
 * Created on 2005-1-25
 *
 * TODO To change the template for this generated file go to
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 */
package com.example.policies;

import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.ComponentEditPolicy;
import org.eclipse.gef.requests.GroupRequest;

import com.example.commands.DeleteNodeCommand;
import com.example.model.Diagram;
import com.example.model.Node;

/**
 * @author zhanghao
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class NodeEditPolicy extends ComponentEditPolicy{

    protected Command createDeleteCommand(GroupRequest deleteRequest) {
        DeleteNodeCommand deleteCommand=new DeleteNodeCommand();
        deleteCommand.setDiagram((Diagram)getHost().getParent().getModel());
        deleteCommand.setNode((Node)getHost().getModel());
        return deleteCommand;
    }
}