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1: /* ======================================================================== 2: * JCommon : a free general purpose class library for the Java(tm) platform 3: * ======================================================================== 4: * 5: * (C) Copyright 2000-2005, 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: * DetailEditor.java 29: * ----------------- 30: * (C) Copyright 2004, by Thomas Morgner and Contributors. 31: * 32: * Original Author: Thomas Morgner; 33: * Contributor(s): David Gilbert (for Object Refinery Limited); 34: * 35: * $Id: FloatingButtonEnabler.java,v 1.3 2005/10/18 13:18:34 mungady Exp $ 36: * 37: * Changes 38: * ------- 39: * 07-Jun-2004 : Added JCommon header (DG); 40: * 41: */ 42: 43: package org.jfree.ui; 44: 45: import java.awt.event.MouseAdapter; 46: import java.awt.event.MouseEvent; 47: 48: import javax.swing.AbstractButton; 49: 50: /** 51: * Enables a button to have a simple floating effect. The border of the button is only visible, 52: * when the mouse pointer is floating over the button. 53: * 54: * @author Thomas Morgner 55: */ 56: public final class FloatingButtonEnabler extends MouseAdapter { 57: 58: /** A single instance. */ 59: private static FloatingButtonEnabler singleton; 60: 61: /** 62: * Default constructor. 63: */ 64: private FloatingButtonEnabler() { 65: // nothing required 66: } 67: 68: /** 69: * Returns a default instance of this enabler. 70: * 71: * @return a shared instance of this class. 72: */ 73: public static FloatingButtonEnabler getInstance() { 74: if (singleton == null) { 75: singleton = new FloatingButtonEnabler(); 76: } 77: return singleton; 78: } 79: 80: /** 81: * Adds a button to this enabler. 82: * 83: * @param button the button. 84: */ 85: public void addButton(final AbstractButton button) { 86: button.addMouseListener(this); 87: button.setBorderPainted(false); 88: } 89: 90: /** 91: * Removes a button from the enabler. 92: * 93: * @param button the button. 94: */ 95: public void removeButton(final AbstractButton button) { 96: button.addMouseListener(this); 97: button.setBorderPainted(true); 98: } 99: 100: /** 101: * Triggers the drawing of the border when the mouse entered the button area. 102: * 103: * @param e the mouse event. 104: */ 105: public void mouseEntered(final MouseEvent e) { 106: if (e.getSource() instanceof AbstractButton) { 107: final AbstractButton button = (AbstractButton) e.getSource(); 108: if (button.isEnabled()) { 109: button.setBorderPainted(true); 110: } 111: } 112: } 113: 114: /** 115: * Disables the drawing of the border when the mouse leaves the button area. 116: * 117: * @param e the mouse event. 118: */ 119: public void mouseExited(final MouseEvent e) { 120: if (e.getSource() instanceof AbstractButton) { 121: final AbstractButton button = (AbstractButton) e.getSource(); 122: button.setBorderPainted(false); 123: if (button.getParent() != null) 124: { 125: // button.getParent().repaint(button.getX(), button.getY(), 126: // button.getWidth(), button.getHeight()); 127: button.getParent().repaint(); 128: } 129: } 130: } 131: 132: }