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Java > Open Source Codes > org > nightlabs > editor2d > handle > RotateCenterHandle


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.handle;
29
30 import java.util.List JavaDoc;
31
32 import org.eclipse.draw2d.Graphics;
33 import org.eclipse.draw2d.geometry.Rectangle;
34 import org.eclipse.gef.DragTracker;
35
36 import org.nightlabs.editor2d.custom.EditorCursors;
37 import org.nightlabs.editor2d.edit.AbstractDrawComponentEditPart;
38 import org.nightlabs.editor2d.tools.RotateCenterTracker;
39
40
41 public class RotateCenterHandle
42 extends EditorAbstractHandle
43 {
44   protected List JavaDoc editParts;
45   public RotateCenterHandle(List JavaDoc editParts)
46   {
47     super();
48     if (editParts.size() == 1) {
49       setLocator(new RotateCenterLocator((AbstractDrawComponentEditPart)editParts.get(0)));
50     } else {
51       setLocator(new MultipleCenterLocator(editParts));
52       multiple = true;
53     }
54     setOwner((AbstractDrawComponentEditPart)editParts.get(0));
55     setCursor(EditorCursors.CROSS);
56   }
57
58   protected DragTracker createDragTracker() {
59     return new RotateCenterTracker((AbstractDrawComponentEditPart)getOwner());
60   }
61   
62   public void paintFigure(Graphics g)
63   {
64     Rectangle r = getBounds();
65     r.shrink(1, 1);
66     try {
67       g.fillOval(r);
68       g.drawOval(r);
69 // g.drawLine(r.x + r.width/2, r.y, r.x + r.width/2, r.y + r.height);
70
// g.drawLine(r.x, r.y + r.height/2, r.x + r.width, r.y + r.height/2);
71
} finally {
72       //We don't really own rect 'r', so fix it.
73
r.expand(1, 1);
74     }
75   }
76   
77   protected boolean multiple = false;
78   public boolean isMultiple() {
79     return multiple;
80   }
81 }
82
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