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Java > Open Source Codes > org > nightlabs > editor2d > tools > EditorSelectionTool


1 /* *****************************************************************************
2  * NightLabs Editor2D - Graphical editor framework *
3  * Copyright (C) 2004-2005 NightLabs - http://NightLabs.org *
4  * Project author: Daniel Mazurek <Daniel.Mazurek [at] nightlabs [dot] org> *
5  * *
6  * This library is free software; you can redistribute it and/or *
7  * modify it under the terms of the GNU Lesser General Public *
8  * License as published by the Free Software Foundation; either *
9  * version 2.1 of the License, or (at your option) any later version. *
10  * *
11  * This library is distributed in the hope that it will be useful, *
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
14  * Lesser General Public License for more details. *
15  * *
16  * You should have received a copy of the GNU Lesser General Public *
17  * License along with this library; if not, write to the *
18  * Free Software Foundation, Inc., *
19  * 51 Franklin St, Fifth Floor, *
20  * Boston, MA 02110-1301 USA *
21  * *
22  * Or get it online : *
23  * http://www.gnu.org/copyleft/lesser.html *
24  * *
25  * *
26  ******************************************************************************/

27
28 package org.nightlabs.editor2d.tools;
29
30 import java.util.List JavaDoc;
31
32 import org.eclipse.gef.tools.PanningSelectionTool;
33 import org.eclipse.swt.SWT;
34 import org.eclipse.swt.events.KeyEvent;
35
36 import org.nightlabs.editor2d.EditorStateManager;
37 import org.nightlabs.editor2d.request.EditorRequestConstants;
38
39
40 public class EditorSelectionTool
41 extends PanningSelectionTool
42 implements EditorRequestConstants
43 {
44   protected static final int STATE_ROTATE = PanningSelectionTool.MAX_STATE << 1;
45   protected static final int STATE_ROTATE_IN_PROGRESS = STATE_ROTATE << 1;
46   protected static final int MAX_STATE = STATE_ROTATE;
47   
48   public EditorSelectionTool() {
49     super();
50   }
51   
52   protected boolean handleDoubleClick(int button)
53   {
54     if (EditorStateManager.getCurrentState() == EditorStateManager.STATE_NORMAL_SELECTION)
55     {
56       List JavaDoc selectedParts = getCurrentViewer().getSelectedEditParts();
57       if (!selectedParts.isEmpty()) {
58         stateTransition(STATE_ROTATE, STATE_INITIAL);
59         EditorStateManager.setRotateMode(selectedParts);
60       }
61     }
62     else if (EditorStateManager.getCurrentState() == EditorStateManager.STATE_ROTATE)
63     {
64       List JavaDoc selectedParts = getCurrentViewer().getSelectedEditParts();
65       if (!selectedParts.isEmpty()) {
66         stateTransition(STATE_ROTATE, STATE_INITIAL);
67         EditorStateManager.setNormalSelectionMode(selectedParts);
68       }
69     }
70     return true;
71   }
72     
73   protected String JavaDoc getCommandName()
74   {
75     if (isInState(STATE_ROTATE) || isInState(STATE_ROTATE_IN_PROGRESS))
76       return REQ_ROTATE;
77   
78     return super.getCommandName();
79   }
80      
81   public void activate()
82   {
83     EditorStateManager.setCurrentState(EditorStateManager.STATE_NORMAL_SELECTION);
84     super.activate();
85   }
86     
87   protected boolean handleKeyDown(KeyEvent e)
88   {
89     if (e.character == SWT.ESC)
90     {
91       EditorStateManager.setCurrentState(EditorStateManager.STATE_NORMAL_SELECTION);
92       getCurrentViewer().deselectAll();
93     }
94       
95     return super.handleKeyDown(e);
96   }
97     
98 }
99
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