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1: /* =========================================================== 2: * JFreeChart : a free chart library for the Java(tm) platform 3: * =========================================================== 4: * 5: * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jfreechart/index.html 8: * 9: * 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, 2007,by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): ; 34: * 35: * Changes 36: * ------- 37: * 24-Nov-2005 : Version 1 (DG); 38: * 39: */ 40: 41: package org.jfree.chart.editor; 42: 43: import org.jfree.chart.JFreeChart; 44: 45: /** 46: * The central point for obtaining {@link ChartEditor} instances for editing 47: * charts. Right now, the API is minimal - the plan is to extend this class 48: * to provide customisation options for chart editors (for example, make some 49: * editor items read-only). 50: */ 51: public class ChartEditorManager { 52: 53: /** This factory creates new {@link ChartEditor} instances as required. */ 54: static ChartEditorFactory factory = new DefaultChartEditorFactory(); 55: 56: /** 57: * Private constructor prevents instantiation. 58: */ 59: private ChartEditorManager() { 60: // nothing to do 61: } 62: 63: /** 64: * Returns the current factory. 65: * 66: * @return The current factory (never <code>null</code>). 67: */ 68: public static ChartEditorFactory getChartEditorFactory() { 69: return factory; 70: } 71: 72: /** 73: * Sets the chart editor factory. 74: * 75: * @param f the new factory (<code>null</code> not permitted). 76: */ 77: public static void setChartEditorFactory(ChartEditorFactory f) { 78: if (f == null) { 79: throw new IllegalArgumentException("Null 'f' argument."); 80: } 81: factory = f; 82: } 83: 84: /** 85: * Returns a component that can be used to edit the given chart. 86: * 87: * @param chart the chart. 88: * 89: * @return The chart editor. 90: */ 91: public static ChartEditor getChartEditor(JFreeChart chart) { 92: return factory.createEditor(chart); 93: } 94: }