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1   /**********************************************
2    * Copyright (C) 2009 Lukas Laag
3    * This file is part of Vectomatic.
4    * 
5    * Vectomatic is free software: you can redistribute it and/or modify
6    * it under the terms of the GNU General Public License as published by
7    * the Free Software Foundation, either version 3 of the License, or
8    * (at your option) any later version.
9    * 
10   * Vectomatic is distributed in the hope that it will be useful,
11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   * GNU General Public License for more details.
14   * 
15   * You should have received a copy of the GNU General Public License
16   * along with Vectomatic.  If not, see http://www.gnu.org/licenses/
17   **********************************************/
18  package org.vectomatic.client.rep.controller;
19  
20  import org.vectomatic.client.rep.RepApplication;
21  import org.vectomatic.client.rep.command.CommandHistory;
22  import org.vectomatic.client.rep.events.ICommandHistoryListener;
23  import org.vectomatic.client.rep.view.DrawingView;
24  
25  /**
26   * Controller to redo a previously undone command
27   */
28  public class RedoController extends ControllerBase implements ICommandHistoryListener {
29  	private ControllerPushButton _redoButton;
30  	private ControllerMenuItem _redoMenuItem;
31  
32  	public RedoController(RepApplication app) {
33  		super(app);
34  		_app.getHistory().addCommandHistoryListener(this);
35  		_redoButton = new ControllerPushButton(app.getView(), _app.getIcons().redoIcon().createImage(), _app.getIcons().redoDisabledIcon().createImage(), _app.getConstants().redoCommand(), this);
36  		_redoMenuItem = new ControllerMenuItem(app.getView(), _app.getConstants().redoCommand(), this);
37  		commandHistoryChange(_app.getHistory());
38  	}
39  	@Override
40  	public void activate(DrawingView view) {
41  		_app.getHistory().redo();
42  	}
43  
44  	public void commandHistoryChange(CommandHistory commandHistory) {
45  		boolean canRedo = _app.getHistory().canRedo();
46  		_redoButton.setEnabled(canRedo);
47  		_redoMenuItem.setEnabled(canRedo);
48  		String text = _app.getConstants().redoCommand();
49  		if (canRedo) {
50  			text += " " + _app.getHistory().getRedoCommand().getDescription();
51  			_redoMenuItem.setText(text);
52  		} else {
53  			_redoMenuItem.setText(text);
54  		}
55  	}
56  	public ControllerPushButton getRedoButton() {
57  		return _redoButton;
58  	}
59  	public ControllerMenuItem getRedoMenuItem() {
60  		return _redoMenuItem;
61  	}
62  }