mindmapxmlelement.java

思维导图(Mind Mapping)以放射性思考(Radiant Thinking)为基础的收放自如方式

/*FreeMind - A Program for creating and viewing Mindmaps
 *Copyright (C) 2000-2001  Joerg Mueller <[e-mail]>
 *See COPYING for Details
 *
 *This program is free software; you can redistribute it and/or
 *modify it under the terms of the GNU General Public License
 *as published by the Free Software Foundation; either version 2
 *of the License, or (at your option) any later version.
 *
 *This program is distributed in the hope that it will be useful,
 *but WITHOUT ANY WARRANTY; without even the implied warranty of
 *MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *GNU General Public License for more details.
 *
 *You should have received a copy of the GNU General Public License
 *along with this program; if not, write to the Free Software
 *Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
/*$Id: MindMapXMLElement.java,v 1.13.18.1 2004/12/19 09:00:41 christianfoltin Exp $*/


package freemind.modes.mindmapmode;

import java.lang.reflect.Constructor;
import java.util.HashMap;
import java.util.Vector;

import freemind.main.FreeMindMain;
import freemind.main.XMLElement;
import freemind.modes.ArrowLinkAdapter;
import freemind.modes.CloudAdapter;
import freemind.modes.EdgeAdapter;
import freemind.modes.NodeAdapter;
import freemind.modes.XMLElementAdapter;

public class MindMapXMLElement extends XMLElementAdapter {

    
	// Logging: 
	private static java.util.logging.Logger logger;

   public MindMapXMLElement(FreeMindMain frame) {
       super(frame);
       init();
   }

    protected MindMapXMLElement(FreeMindMain frame, Vector ArrowLinkAdapters, HashMap IDToTarget) {
        super(frame, ArrowLinkAdapters, IDToTarget);
        init();
    }

    /**
     * 
     */
    private void init() {
        if(logger==null) {
        	logger = getFrame().getLogger(this.getClass().getName());
        }
    }

    /** abstract method to create elements of my type (factory).*/
    protected XMLElement  createAnotherElement(){
    // We do not need to initialize the things of XMLElement.
        return new MindMapXMLElement(getFrame(), ArrowLinkAdapters, IDToTarget);
    }
    protected NodeAdapter createNodeAdapter(FreeMindMain     frame, String nodeClass){
        if (nodeClass==null) {
            return new MindMapNodeModel(frame);
        }
        // reflection:
		try {
		    // construct class loader:
            ClassLoader loader = this.getClass().getClassLoader();
		    // constructed.
			Class nodeJavaClass = Class.forName(nodeClass, true, loader);
			Class[] constrArgs = new Class[]{Object.class, FreeMindMain.class};
			Object[] constrObjs = new Object[]{null, frame};
			Constructor constructor = nodeJavaClass.getConstructor(constrArgs);
			NodeAdapter nodeImplementor =
				(NodeAdapter) constructor.newInstance(constrObjs);
			return nodeImplementor;
		} catch (Exception e) {
			logger.severe("Error occurred loading node implementor: " + nodeClass + "\nException:"+e.toString());
			// the best we can do is to return the normal class:
			return new MindMapNodeModel(frame);
		}
    }
    protected EdgeAdapter createEdgeAdapter(NodeAdapter node, FreeMindMain frame){
        return new MindMapEdgeModel(node, frame); 
    }
    protected CloudAdapter createCloudAdapter(NodeAdapter node, FreeMindMain frame){
        return new MindMapCloudModel(node, frame); 
    }
    protected ArrowLinkAdapter createArrowLinkAdapter(NodeAdapter source, NodeAdapter target, FreeMindMain frame) {
        return new MindMapArrowLinkModel(source,target,frame);
    }

}