001/* BasicToggleButtonUI.java 002 Copyright (C) 2002, 2004, 2005, 2006, Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038 039package javax.swing.plaf.basic; 040 041import java.awt.Font; 042import java.awt.Graphics; 043import java.awt.Rectangle; 044 045import javax.swing.AbstractButton; 046import javax.swing.JComponent; 047import javax.swing.JToggleButton; 048import javax.swing.SwingUtilities; 049import javax.swing.UIManager; 050import javax.swing.plaf.ComponentUI; 051 052/** 053 * A UI delegate for the {@link JToggleButton} component. 054 */ 055public class BasicToggleButtonUI extends BasicButtonUI 056{ 057 058 /** 059 * Returns a UI delegate for the specified component. 060 * 061 * @param component the component (should be an instance of 062 * {@link JToggleButton}). 063 * 064 * @return An instance of <code>BasicToggleButtonUI</code>. 065 */ 066 public static ComponentUI createUI(JComponent component) 067 { 068 return new BasicToggleButtonUI(); 069 } 070 071 /** 072 * Returns the prefix for entries in the {@link UIManager} defaults table 073 * (<code>"ToggleButton."</code> in this case). 074 * 075 * @return <code>"ToggleButton."</code> 076 */ 077 protected String getPropertyPrefix() 078 { 079 return "ToggleButton."; 080 } 081 082 /** 083 * Paint the component, which is an {@link AbstractButton}, according to 084 * its current state. 085 * 086 * @param g The graphics context to paint with 087 * @param c The component to paint the state of 088 */ 089 public void paint(Graphics g, JComponent c) 090 { 091 AbstractButton b = (AbstractButton) c; 092 093 Rectangle tr = new Rectangle(); 094 Rectangle ir = new Rectangle(); 095 Rectangle vr = new Rectangle(); 096 097 Font f = c.getFont(); 098 099 g.setFont(f); 100 101 if (b.isBorderPainted()) 102 SwingUtilities.calculateInnerArea(b, vr); 103 else 104 vr = SwingUtilities.getLocalBounds(b); 105 String text = SwingUtilities.layoutCompoundLabel(c, g.getFontMetrics(f), 106 b.getText(), currentIcon(b), b.getVerticalAlignment(), 107 b.getHorizontalAlignment(), b.getVerticalTextPosition(), 108 b.getHorizontalTextPosition(), vr, ir, tr, b.getIconTextGap() 109 + defaultTextShiftOffset); 110 111 if ((b.getModel().isArmed() && b.getModel().isPressed()) 112 || b.isSelected()) 113 paintButtonPressed(g, b); 114 115 paintIcon(g, b, ir); 116 if (text != null) 117 paintText(g, b, tr, text); 118 if (b.isFocusOwner() && b.isFocusPainted()) 119 paintFocus(g, b, vr, tr, ir); 120 } 121 122 /** 123 * Paints the icon for the toggle button. This delegates to 124 * {@link BasicButtonUI#paintIcon(Graphics, JComponent, Rectangle)}. 125 * 126 * @param g the graphics context 127 * @param b the button to paint the icon for 128 * @param iconRect the area allocated for the icon 129 */ 130 protected void paintIcon(Graphics g, AbstractButton b, Rectangle iconRect) 131 { 132 super.paintIcon(g, b, iconRect); 133 } 134}