01: /* ===========================================================
02: * JFreeChart : a free chart library for the Java(tm) platform
03: * ===========================================================
04: *
05: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jfreechart/index.html
08: *
09: * This library is free software; you can redistribute it and/or modify it
10: * under the terms of the GNU Lesser General Public License as published by
11: * the Free Software Foundation; either version 2.1 of the License, or
12: * (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but
15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17: * License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22: * USA.
23: *
24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25: * in the United States and other countries.]
26: *
27: * -----------------------
28: * ChartEditorManager.java
29: * -----------------------
30: * (C) Copyright 2005, by Object Refinery Limited.
31: *
32: * Original Author: David Gilbert (for Object Refinery Limited);
33: * Contributor(s): ;
34: *
35: * $Id: ChartEditorManager.java,v 1.1.2.2 2005/11/28 15:19:32 mungady Exp $
36: *
37: * Changes
38: * -------
39: * 24-Nov-2005 : Version 1 (DG);
40: *
41: */
42:
43: package org.jfree.chart.editor;
44:
45: import org.jfree.chart.JFreeChart;
46:
47: /**
48: * The central point for obtaining {@link ChartEditor} instances for editing
49: * charts. Right now, the API is minimal - the plan is to extend this class
50: * to provide customisation options for chart editors (for example, make some
51: * editor items read-only).
52: */
53: public class ChartEditorManager {
54:
55: /** This factory creates new {@link ChartEditor} instances as required. */
56: static ChartEditorFactory factory = new DefaultChartEditorFactory();
57:
58: /**
59: * Private constructor prevents instantiation.
60: */
61: private ChartEditorManager() {
62: // nothing to do
63: }
64:
65: /**
66: * Returns the current factory.
67: *
68: * @return The current factory (never <code>null</code>).
69: */
70: public static ChartEditorFactory getChartEditorFactory() {
71: return factory;
72: }
73:
74: /**
75: * Sets the chart editor factory.
76: *
77: * @param f the new factory (<code>null</code> not permitted).
78: */
79: public static void setChartEditorFactory(ChartEditorFactory f) {
80: if (f == null) {
81: throw new IllegalArgumentException("Null 'f' argument.");
82: }
83: factory = f;
84: }
85:
86: /**
87: * Returns a component that can be used to edit the given chart.
88: *
89: * @param chart the chart.
90: *
91: * @return The chart editor.
92: */
93: public static ChartEditor getChartEditor(JFreeChart chart) {
94: return factory.createEditor(chart);
95: }
96: }
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