1 /* 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package javax.swing.plaf.basic; 27 28 import sun.awt.AppContext; 29 30 import java.awt.*; 31 import java.awt.event.*; 32 33 import javax.swing.*; 34 import javax.swing.border.*; 35 import javax.swing.plaf.*; 36 import javax.swing.text.View; 37 38 39 40 /** 41 * BasicToggleButton implementation 42 * 43 * @author Jeff Dinkins 44 */ 45 public class BasicToggleButtonUI extends BasicButtonUI { 46 47 private static final Object BASIC_TOGGLE_BUTTON_UI_KEY = new Object(); 48 49 private static final String propertyPrefix = "ToggleButton" + "."; 50 51 // ******************************** 52 // Create PLAF 53 // ******************************** 54 55 /** 56 * Returns an instance of {@code BasicToggleButtonUI}. 57 * 58 * @param b a component 59 * @return an instance of {@code BasicToggleButtonUI} 60 */ createUI(JComponent b)61 public static ComponentUI createUI(JComponent b) { 62 AppContext appContext = AppContext.getAppContext(); 63 BasicToggleButtonUI toggleButtonUI = 64 (BasicToggleButtonUI) appContext.get(BASIC_TOGGLE_BUTTON_UI_KEY); 65 if (toggleButtonUI == null) { 66 toggleButtonUI = new BasicToggleButtonUI(); 67 appContext.put(BASIC_TOGGLE_BUTTON_UI_KEY, toggleButtonUI); 68 } 69 return toggleButtonUI; 70 } 71 getPropertyPrefix()72 protected String getPropertyPrefix() { 73 return propertyPrefix; 74 } 75 76 77 // ******************************** 78 // Paint Methods 79 // ******************************** paint(Graphics g, JComponent c)80 public void paint(Graphics g, JComponent c) { 81 AbstractButton b = (AbstractButton) c; 82 ButtonModel model = b.getModel(); 83 84 Dimension size = b.getSize(); 85 FontMetrics fm = g.getFontMetrics(); 86 87 Insets i = c.getInsets(); 88 89 Rectangle viewRect = new Rectangle(size); 90 91 viewRect.x += i.left; 92 viewRect.y += i.top; 93 viewRect.width -= (i.right + viewRect.x); 94 viewRect.height -= (i.bottom + viewRect.y); 95 96 Rectangle iconRect = new Rectangle(); 97 Rectangle textRect = new Rectangle(); 98 99 Font f = c.getFont(); 100 g.setFont(f); 101 102 // layout the text and icon 103 String text = SwingUtilities.layoutCompoundLabel( 104 c, fm, b.getText(), b.getIcon(), 105 b.getVerticalAlignment(), b.getHorizontalAlignment(), 106 b.getVerticalTextPosition(), b.getHorizontalTextPosition(), 107 viewRect, iconRect, textRect, 108 b.getText() == null ? 0 : b.getIconTextGap()); 109 110 g.setColor(b.getBackground()); 111 112 if (model.isArmed() && model.isPressed() || model.isSelected()) { 113 paintButtonPressed(g,b); 114 } 115 116 // Paint the Icon 117 if(b.getIcon() != null) { 118 paintIcon(g, b, iconRect); 119 } 120 121 // Draw the Text 122 if(text != null && !text.equals("")) { 123 View v = (View) c.getClientProperty(BasicHTML.propertyKey); 124 if (v != null) { 125 v.paint(g, textRect); 126 } else { 127 paintText(g, b, textRect, text); 128 } 129 } 130 131 // draw the dashed focus line. 132 if (b.isFocusPainted() && b.hasFocus()) { 133 paintFocus(g, b, viewRect, textRect, iconRect); 134 } 135 } 136 137 /** 138 * Paints an icon in the specified location. 139 * 140 * @param g an instance of {@code Graphics} 141 * @param b an instance of {@code Button} 142 * @param iconRect bounds of an icon 143 */ paintIcon(Graphics g, AbstractButton b, Rectangle iconRect)144 protected void paintIcon(Graphics g, AbstractButton b, Rectangle iconRect) { 145 ButtonModel model = b.getModel(); 146 Icon icon = null; 147 148 if(!model.isEnabled()) { 149 if(model.isSelected()) { 150 icon = b.getDisabledSelectedIcon(); 151 } else { 152 icon = b.getDisabledIcon(); 153 } 154 } else if(model.isPressed() && model.isArmed()) { 155 icon = b.getPressedIcon(); 156 if(icon == null) { 157 // Use selected icon 158 icon = b.getSelectedIcon(); 159 } 160 } else if(model.isSelected()) { 161 if(b.isRolloverEnabled() && model.isRollover()) { 162 icon = b.getRolloverSelectedIcon(); 163 if (icon == null) { 164 icon = b.getSelectedIcon(); 165 } 166 } else { 167 icon = b.getSelectedIcon(); 168 } 169 } else if(b.isRolloverEnabled() && model.isRollover()) { 170 icon = b.getRolloverIcon(); 171 } 172 173 if(icon == null) { 174 icon = b.getIcon(); 175 } 176 177 icon.paintIcon(b, g, iconRect.x, iconRect.y); 178 } 179 180 /** 181 * Overriden so that the text will not be rendered as shifted for 182 * Toggle buttons and subclasses. 183 */ getTextShiftOffset()184 protected int getTextShiftOffset() { 185 return 0; 186 } 187 188 } 189