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


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 org.apache.log4j.Logger;
31 import org.eclipse.gef.Request;
32 import org.eclipse.swt.graphics.Cursor;
33
34 import org.nightlabs.editor2d.custom.EditorCursors;
35 import org.nightlabs.editor2d.edit.AbstractDrawComponentEditPart;
36 import org.nightlabs.editor2d.request.EditorRotateCenterRequest;
37
38
39 public class RotateCenterTracker
40 extends AbstractDragTracker
41 {
42   public static final Logger LOGGER = Logger.getLogger(RotateCenterTracker.class);
43   
44   public RotateCenterTracker(AbstractDrawComponentEditPart owner) {
45     super(owner);
46   }
47
48   protected AbstractDrawComponentEditPart getAbstractDrawComponentEditPart() {
49     return (AbstractDrawComponentEditPart) owner;
50   }
51
52   protected String JavaDoc getCommandName() {
53     return REQ_EDIT_ROTATE_CENTER;
54   }
55
56   protected Cursor getDefaultCursor() {
57     return EditorCursors.CROSS;
58   }
59   
60   protected Request createSourceRequest()
61   {
62     EditorRotateCenterRequest rotateRequest = new EditorRotateCenterRequest();
63     rotateRequest.setType(REQ_EDIT_ROTATE_CENTER);
64     rotateRequest.setRotationCenter(getLocation());
65     rotateRequest.setEditParts(getCurrentViewer().getSelectedEditParts());
66     return rotateRequest;
67   }
68   
69   protected void updateSourceRequest()
70   {
71     getEditorRotateCenterRequest().setRotationCenter(getLocation());
72     LOGGER.debug("rotationCenter = "+getLocation());
73   }
74   
75   protected EditorRotateCenterRequest getEditorRotateCenterRequest()
76   {
77     return (EditorRotateCenterRequest) getSourceRequest();
78   }
79
80   // Override to avoid the single selection of the EditPart whiches handle has been selected
81 protected void performSelection()
82     {
83         
84     }
85     
86 }
87
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