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1: /* ======================================================================== 2: * JCommon : a free general purpose class library for the Java(tm) platform 3: * ======================================================================== 4: * 5: * (C) Copyright 2000-2009, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jcommon/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: * StrokeChooserPanel.java 29: * ----------------------- 30: * (C) Copyright 2000-2009, by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): Dirk Zeitz; 34: * 35: * $Id: StrokeChooserPanel.java,v 1.8 2009/02/27 13:58:41 mungady Exp $ 36: * 37: * Changes (from 26-Oct-2001) 38: * -------------------------- 39: * 26-Oct-2001 : Changed package to com.jrefinery.ui.*; 40: * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG); 41: * 16-Mar-2004 : Fix for focus problems (DZ); 42: * 27-Feb-2009 : Fixed bug 2612649, NullPointerException (DG); 43: * 44: */ 45: 46: package org.jfree.ui; 47: 48: import java.awt.BorderLayout; 49: import java.awt.Stroke; 50: import java.awt.event.ActionEvent; 51: import java.awt.event.ActionListener; 52: 53: import javax.swing.DefaultComboBoxModel; 54: import javax.swing.JComboBox; 55: import javax.swing.JPanel; 56: 57: /** 58: * A component for choosing a stroke from a list of available strokes. This 59: * class needs work. 60: * 61: * @author David Gilbert 62: */ 63: public class StrokeChooserPanel extends JPanel { 64: 65: /** A combo for selecting the stroke. */ 66: private JComboBox selector; 67: 68: /** 69: * Creates a panel containing a combo-box that allows the user to select 70: * one stroke from a list of available strokes. 71: * 72: * @param current the current stroke sample. 73: * @param available an array of 'available' stroke samples. 74: */ 75: public StrokeChooserPanel(StrokeSample current, StrokeSample[] available) { 76: setLayout(new BorderLayout()); 77: // we've changed the behaviour here to populate the combo box 78: // with Stroke objects directly - ideally we'd change the signature 79: // of the constructor too...maybe later. 80: DefaultComboBoxModel model = new DefaultComboBoxModel(); 81: for (int i = 0; i < available.length; i++) { 82: model.addElement(available[i].getStroke()); 83: } 84: this.selector = new JComboBox(model); 85: this.selector.setSelectedItem(current.getStroke()); 86: this.selector.setRenderer(new StrokeSample(null)); 87: add(this.selector); 88: // Changes due to focus problems!! DZ 89: this.selector.addActionListener(new ActionListener() { 90: public void actionPerformed(final ActionEvent evt) { 91: getSelector().transferFocus(); 92: } 93: }); 94: } 95: 96: 97: /** 98: * Returns the selector component. 99: * 100: * @return Returns the selector. 101: */ 102: protected final JComboBox getSelector() { 103: return this.selector; 104: } 105: 106: /** 107: * Returns the selected stroke. 108: * 109: * @return The selected stroke (possibly <code>null</code>). 110: */ 111: public Stroke getSelectedStroke() { 112: return (Stroke) this.selector.getSelectedItem(); 113: } 114: 115: }