1 /* MetalCheckBoxIcon.java -- An icon for JCheckBoxes in the Metal L&F 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.Component; 42 import java.awt.Graphics; 43 import java.io.Serializable; 44 45 import javax.swing.Icon; 46 import javax.swing.JCheckBox; 47 import javax.swing.plaf.UIResource; 48 49 /** 50 * An {@link Icon} used by the {@link MetalCheckBoxUI} class. 51 * 52 * @author Roman Kennke (roman@kennke.org) 53 */ 54 public class MetalCheckBoxIcon 55 implements Icon, UIResource, Serializable 56 { 57 58 /** Used to paint the border of the icon. */ 59 MetalBorders.ButtonBorder border; 60 61 /** 62 * Creates a new MetalCheckBoxIcon instance. 63 */ MetalCheckBoxIcon()64 public MetalCheckBoxIcon() 65 { 66 border = new MetalBorders.ButtonBorder(); 67 } 68 69 /** 70 * Draws the check in the CheckBox. 71 * 72 * @param c the component to draw on 73 * @param g the Graphics context to draw with 74 * @param x the X position 75 * @param y the Y position 76 */ drawCheck(Component c, Graphics g, int x, int y)77 protected void drawCheck(Component c, Graphics g, int x, int y) 78 { 79 if (c.isEnabled()) 80 g.setColor(MetalLookAndFeel.getBlack()); 81 else 82 g.setColor(MetalLookAndFeel.getControlDisabled()); 83 g.drawLine(3 + x, 5 + y, 3 + x, 9 + y); 84 g.drawLine(4 + x, 5 + y, 4 + x, 9 + y); 85 g.drawLine(5 + x, 7 + y, 9 + x, 3 + y); 86 g.drawLine(5 + x, 8 + y, 9 + x, 4 + y); 87 } 88 89 /** 90 * Returns the size (both X and Y) of the checkbox icon. 91 * 92 * @return the size of the checkbox icon 93 */ getControlSize()94 protected int getControlSize() 95 { 96 return 13; 97 } 98 99 /** 100 * Returns the width of the icon in pixels. 101 * 102 * @return the width of the icon in pixels 103 */ getIconWidth()104 public int getIconWidth() 105 { 106 return getControlSize(); 107 } 108 109 /** 110 * Returns the height of the icon in pixels. 111 * 112 * @return the height of the icon in pixels 113 */ getIconHeight()114 public int getIconHeight() 115 { 116 return getControlSize(); 117 } 118 119 /** 120 * Paints the icon. This first paints the border of the CheckBox and 121 * if the CheckBox is selected it calls {@link #drawCheck} to draw 122 * the check. 123 * 124 * @param c the Component to draw on (gets casted to JCheckBox) 125 * @param g the Graphics context to draw with 126 * @param x the X position 127 * @param y the Y position 128 */ paintIcon(Component c, Graphics g, int x, int y)129 public void paintIcon(Component c, Graphics g, int x, int y) 130 { 131 border.paintBorder(c, g, x, y, getIconWidth(), getIconHeight()); 132 JCheckBox cb = (JCheckBox) c; 133 if (cb.isSelected()) 134 drawCheck(c, g, x, y); 135 } 136 } 137