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Java > Open Source Codes > org > nightlabs > editor2d > render > Renderer


1 /* *****************************************************************************
2  * NightLabs Editor2D - Graphical editor framework *
3  * Copyright (C) 2004-2005 NightLabs - http://NightLabs.org *
4  * *
5  * This library is free software; you can redistribute it and/or *
6  * modify it under the terms of the GNU Lesser General Public *
7  * License as published by the Free Software Foundation; either *
8  * version 2.1 of the License, or (at your option) any later version. *
9  * *
10  * This library 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 GNU *
13  * Lesser General Public License for more details. *
14  * *
15  * You should have received a copy of the GNU Lesser General Public *
16  * License along with this library; if not, write to the *
17  * Free Software Foundation, Inc., *
18  * 51 Franklin St, Fifth Floor, *
19  * Boston, MA 02110-1301 USA *
20  * *
21  * Or get it online : *
22  * http://www.gnu.org/copyleft/lesser.html *
23  * *
24  * *
25  ******************************************************************************/
26
27 package org.nightlabs.editor2d.render;
28
29 import java.awt.Graphics2D JavaDoc;
30
31 import org.nightlabs.editor2d.DrawComponent;
32
33 /**
34  * This is the Base-Interface for all Renderers
35  *
36  * For each RenderMode of a DrawComponent there should
37  * exist a certain Renderer-Implementation, which should display
38  * the content of the DrawComponent corresponding to the context (RenderMode)
39  *
40  * Implementation of Renderers for certain classes must cast the DrawComponent
41  * in order to get access to the specialized content
42  *
43  * a small example for a ShapeDrawComponent-Renderer:
44  *
45  * public void paint(DrawComponent dc, Graphics2D g2d)
46  * {
47  * ShapeDrawComponent sdc = (ShapeDrawComponent) dc;
48  * g2d.setPaint(sdc.getFillColor());
49  * g2d.fill(sdc.getGeneralShape());
50  * g2d.setPaint(sdc.getLineColor());
51  * g2d.setStroke(new BasicStroke());
52  * g2d.draw(sdc.getGeneralShape());
53  * }
54  *
55  * @see org.nightlabs.editor2d.DrawComponent.getRenderMode()
56  * @see org.nightlabs.editor2d.render.RenderModeManager
57  *
58  * @author Daniel.Mazurek [AT] NightLabs [DOT] com
59  *
60  */
61 public interface Renderer
62 {
63     /**
64      * In the Implementation of this Method you
65      * need to display the content of the DrawComponent
66      * on the given Graphics2D.
67      *
68      * Specialized Renderers for certain classes must cast the DrawComponent
69      * in order to get access to the specialized content
70      *
71      * @param dc the DrawComponent to paint
72      * @param g2d the Graphics2D to paint on
73      */
74   public void paint(DrawComponent dc, Graphics2D JavaDoc g2d);
75 }
76
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