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1: /* MetalToggleButtonUI.java 2: Copyright (C) 2005 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package javax.swing.plaf.metal; 40: 41: import java.awt.Color; 42: import java.awt.Font; 43: import java.awt.FontMetrics; 44: import java.awt.Graphics; 45: import java.awt.Rectangle; 46: 47: import javax.swing.AbstractButton; 48: import javax.swing.JComponent; 49: import javax.swing.JToggleButton; 50: import javax.swing.SwingConstants; 51: import javax.swing.SwingUtilities; 52: import javax.swing.UIManager; 53: import javax.swing.plaf.ComponentUI; 54: import javax.swing.plaf.basic.BasicButtonUI; 55: import javax.swing.plaf.basic.BasicToggleButtonUI; 56: 57: /** 58: * A UI delegate for the {@link JToggleButton} component. 59: */ 60: public class MetalToggleButtonUI 61: extends BasicToggleButtonUI 62: { 63: 64: /** The color for the focus border. */ 65: protected Color focusColor; 66: 67: /** The color that indicates a selected button. */ 68: protected Color selectColor; 69: 70: /** The color for disabled button labels. */ 71: protected Color disabledTextColor; 72: 73: /** 74: * Returns a new instance of <code>MetalToggleButtonUI</code>. 75: * 76: * @param component the component for which we return an UI instance 77: * 78: * @return A new instance of <code>MetalToggleButtonUI</code>. 79: */ 80: public static ComponentUI createUI(JComponent component) 81: { 82: return new MetalToggleButtonUI(); 83: } 84: 85: /** 86: * Constructs a new instance of <code>MetalToggleButtonUI</code>. 87: */ 88: public MetalToggleButtonUI() 89: { 90: super(); 91: } 92: 93: /** 94: * Returns the color for the focus border. 95: * 96: * @return the color for the focus border 97: */ 98: protected Color getFocusColor() 99: { 100: return focusColor; 101: } 102: 103: /** 104: * Returns the color that indicates a selected button. 105: * 106: * @return the color that indicates a selected button 107: */ 108: protected Color getSelectColor() 109: { 110: return selectColor; 111: } 112: 113: /** 114: * Returns the color for the text label of disabled buttons. The value 115: * is initialised in the {@link #installDefaults(AbstractButton)} method 116: * by reading the <code>ToggleButton.disabledText</code> item from the UI 117: * defaults. 118: * 119: * @return The color for the text label of disabled buttons. 120: */ 121: protected Color getDisabledTextColor() 122: { 123: return disabledTextColor; 124: } 125: 126: /** 127: * Updates the button with the defaults for this look and feel. 128: * 129: * @param b the button. 130: */ 131: public void installDefaults(AbstractButton b) 132: { 133: super.installDefaults(b); 134: focusColor = UIManager.getColor(getPropertyPrefix() + "focus"); 135: selectColor = UIManager.getColor(getPropertyPrefix() + "select"); 136: disabledTextColor = UIManager.getColor(getPropertyPrefix() + "disabledText"); 137: } 138: 139: /** 140: * Paints the button background when it is pressed/selected. 141: * 142: * @param g the graphics device. 143: * @param b the button. 144: */ 145: protected void paintButtonPressed(Graphics g, AbstractButton b) 146: { 147: if (b.isContentAreaFilled() && b.isOpaque()) 148: { 149: Color saved = g.getColor(); 150: Rectangle bounds = SwingUtilities.getLocalBounds(b); 151: g.setColor(selectColor); 152: g.fillRect(bounds.x, bounds.y, bounds.width, bounds.height); 153: g.setColor(saved); 154: } 155: } 156: 157: /** 158: * Paints the text for the button. 159: * 160: * @param g the graphics device. 161: * @param c the component. 162: * @param textRect the bounds for the text. 163: * @param text the text. 164: * 165: * @deprecated 1.4 Use {@link BasicButtonUI#paintText(java.awt.Graphics, 166: * javax.swing.AbstractButton, java.awt.Rectangle, java.lang.String)}. 167: */ 168: protected void paintText(Graphics g, JComponent c, Rectangle textRect, 169: String text) 170: { 171: Font savedFont = g.getFont(); 172: Color savedColor = g.getColor(); 173: g.setFont(c.getFont()); 174: if (c.isEnabled()) 175: g.setColor(c.getForeground()); 176: else 177: g.setColor(disabledTextColor); 178: FontMetrics fm = g.getFontMetrics(c.getFont()); 179: int ascent = fm.getAscent(); 180: g.drawString(text, textRect.x, textRect.y + ascent); 181: g.setFont(savedFont); 182: g.setColor(savedColor); 183: } 184: 185: /** 186: * Draws the focus highlight around the text and icon. 187: * 188: * @param g the graphics device. 189: * @param b the button. 190: */ 191: protected void paintFocus(Graphics g, AbstractButton b, Rectangle viewRect, 192: Rectangle textRect, Rectangle iconRect) 193: { 194: if (!b.hasFocus()) 195: return; 196: Color saved = g.getColor(); 197: g.setColor(focusColor); 198: Rectangle fr = iconRect.union(textRect); 199: g.drawRect(fr.x - 1, fr.y - 1, fr.width + 1, fr.height + 1); 200: g.setColor(saved); 201: } 202: 203: /** 204: * If the property <code>ToggleButton.gradient</code> is set, then a gradient 205: * is painted as background, otherwise the normal superclass behaviour is 206: * called. 207: */ 208: public void update(Graphics g, JComponent c) 209: { 210: if (c.isOpaque() && UIManager.get(getPropertyPrefix() + "gradient") != null) 211: { 212: MetalUtils.paintGradient(g, 0, 0, c.getWidth(), c.getHeight(), 213: SwingConstants.VERTICAL, 214: getPropertyPrefix() + "gradient"); 215: paint(g, c); 216: } 217: else 218: super.update(g, c); 219: } 220: 221: }
GNU Classpath (0.20) |