setlinkbytextfieldaction.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)
 * 2000-2004 Joerg Mueller, Daniel Polansky, Christian Foltin and others.
 * 
 * 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.
 * 
 * Created on 12.10.2004
 */
/*
 * $Id: SetLinkByTextFieldAction.java,v 1.16.10.1 12.10.2004 22:18:45
 * christianfoltin Exp $
 */

package freemind.modes.actions;

import java.awt.event.ActionEvent;

import javax.swing.JOptionPane;
import javax.xml.bind.JAXBException;

import freemind.controller.actions.ActionPair;
import freemind.controller.actions.ActorXml;
import freemind.controller.actions.FreemindAction;
import freemind.controller.actions.generated.instance.AddLinkXmlAction;
import freemind.controller.actions.generated.instance.XmlAction;
import freemind.modes.MindMapNode;
import freemind.modes.ModeController;
import freemind.modes.NodeAdapter;

public class SetLinkByTextFieldAction extends FreemindAction implements ActorXml{
    private final ModeController controller;

    public SetLinkByTextFieldAction(ModeController controller) {
        super("set_link_by_textfield", (String) null, controller);
        this.controller = controller;
        addActor(this);
    }

    public void actionPerformed(ActionEvent e) {
        String inputValue = JOptionPane.showInputDialog(controller
                .getText("edit_link_manually"), controller.getSelected()
                .getLink());
        if (inputValue != null) {
            if (inputValue.equals("")) {
                inputValue = null; // In case of no entry unset link
            }
            setLink(controller.getSelected(),inputValue);
        }
    }

    public void setLink(MindMapNode node, String link) {
        controller.getActionFactory().startTransaction(
                (String) getValue(NAME));
        controller.getActionFactory().executeAction(
                getActionPair(node, link));
        controller.getActionFactory().endTransaction(
               (String) getValue(NAME));
    }

    public void act(XmlAction action) {
        if (action instanceof AddLinkXmlAction) {
            AddLinkXmlAction linkAction = (AddLinkXmlAction) action;
            NodeAdapter node = controller.getNodeFromID(linkAction.getNode());
            node.setLink(linkAction.getDestination());
            controller.nodeChanged(node);
        }
    }

    public Class getDoActionClass() {
        return AddLinkXmlAction.class;
    }
    private ActionPair getActionPair(MindMapNode node, String link) {
        return new ActionPair(createAddLinkXmlAction(node, link), createAddLinkXmlAction(node, node.getLink()));
    }
    private AddLinkXmlAction createAddLinkXmlAction(MindMapNode node, String link) {
        try {
            AddLinkXmlAction action = controller.getActionXmlFactory()
                    .createAddLinkXmlAction();
            action.setNode(node.getObjectId(controller));
            action.setDestination(link);
            return action;
        } catch (JAXBException e) {
            e.printStackTrace();
            return null;
        }
    }
}