1 /* 2 * Copyright (c) 2002, 2013, 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 package sun.awt.X11; 26 27 import java.awt.*; 28 import java.awt.peer.*; 29 import java.awt.event.MouseEvent; 30 import java.awt.event.FocusEvent; 31 import java.awt.event.KeyEvent; 32 import java.awt.event.ActionEvent; 33 import javax.swing.plaf.basic.*; 34 import javax.swing.SwingUtilities; 35 import javax.swing.SwingConstants; 36 public class XButtonPeer extends XComponentPeer implements ButtonPeer { 37 private boolean pressed; 38 private boolean armed; 39 private Insets focusInsets; 40 private Insets borderInsets; 41 private Insets contentAreaInsets; 42 43 private static final String propertyPrefix = "Button" + "."; 44 protected Color focusColor = SystemColor.windowText; 45 46 private boolean disposed = false; 47 48 String label; 49 50 protected String getPropertyPrefix() { 51 return propertyPrefix; 52 } 53 54 void preInit(XCreateWindowParams params) { 55 super.preInit(params); 56 borderInsets = new Insets(2,2,2,2); 57 focusInsets = new Insets(0,0,0,0); 58 contentAreaInsets = new Insets(3,3,3,3); 59 } 60 61 62 public XButtonPeer(Button target) { 63 super(target); 64 pressed = false; 65 armed = false; 66 label = target.getLabel(); 67 updateMotifColors(getPeerBackground()); 68 } 69 70 public void dispose() { 71 synchronized (target) 72 { 73 disposed = true; 74 } 75 super.dispose(); 76 } 77 78 public boolean isFocusable() { 79 return true; 80 } 81 82 @Override 83 public void setLabel(String label) { 84 if (label == null) { 85 label = ""; 86 } 87 if (!label.equals(this.label)) { 88 this.label = label; 89 repaint(); 90 } 91 } 92 93 public void setBackground(Color c) { 94 updateMotifColors(c); 95 super.setBackground(c); 96 } 97 98 void handleJavaMouseEvent(MouseEvent e) { 99 super.handleJavaMouseEvent(e); 100 int id = e.getID(); 101 switch (id) { 102 case MouseEvent.MOUSE_PRESSED: 103 if (XToolkit.isLeftMouseButton(e) ) { 104 Button b = (Button) e.getSource(); 105 106 if(b.contains(e.getX(), e.getY())) { 107 if (!isEnabled()) { 108 // Disabled buttons ignore all input... 109 return; 110 } 111 pressed = true; 112 armed = true; 113 repaint(); 114 } 115 } 116 117 break; 118 119 case MouseEvent.MOUSE_RELEASED: 120 if (XToolkit.isLeftMouseButton(e)) { 121 if (armed) 122 { 123 action(e.getWhen(),e.getModifiers()); 124 } 125 pressed = false; 126 armed = false; 127 repaint(); 128 } 129 130 break; 131 132 case MouseEvent.MOUSE_ENTERED: 133 if (pressed) 134 armed = true; 135 break; 136 case MouseEvent.MOUSE_EXITED: 137 armed = false; 138 break; 139 } 140 } 141 142 143 // NOTE: This method is called by privileged threads. 144 // DO NOT INVOKE CLIENT CODE ON THIS THREAD! 145 public void action(final long when, final int modifiers) { 146 postEvent(new ActionEvent(target, ActionEvent.ACTION_PERFORMED, 147 ((Button)target).getActionCommand(), 148 when, modifiers)); 149 } 150 151 152 public void focusGained(FocusEvent e) { 153 super.focusGained(e); 154 repaint(); 155 } 156 157 public void focusLost(FocusEvent e) { 158 super.focusLost(e); 159 repaint(); 160 } 161 162 void handleJavaKeyEvent(KeyEvent e) { 163 int id = e.getID(); 164 switch (id) { 165 case KeyEvent.KEY_PRESSED: 166 if (e.getKeyCode() == KeyEvent.VK_SPACE) 167 { 168 pressed=true; 169 armed=true; 170 repaint(); 171 action(e.getWhen(),e.getModifiers()); 172 } 173 174 break; 175 176 case KeyEvent.KEY_RELEASED: 177 if (e.getKeyCode() == KeyEvent.VK_SPACE) 178 { 179 pressed = false; 180 armed = false; 181 repaint(); 182 } 183 184 break; 185 186 187 } 188 } 189 190 public Dimension getMinimumSize() { 191 FontMetrics fm = getFontMetrics(getPeerFont()); 192 if ( label == null ) { 193 label = ""; 194 } 195 return new Dimension(fm.stringWidth(label) + 14, 196 fm.getHeight() + 8); 197 } 198 199 /** 200 * DEPRECATED 201 */ 202 public Dimension minimumSize() { 203 return getMinimumSize(); 204 } 205 /** 206 * This method is called from Toolkit Thread and so it should not call any 207 * client code. 208 */ 209 @Override 210 void paintPeer(final Graphics g) { 211 if (!disposed) { 212 Dimension size = getPeerSize(); 213 g.setColor( getPeerBackground() ); /* erase the existing button remains */ 214 g.fillRect(0,0, size.width , size.height); 215 paintBorder(g,borderInsets.left, 216 borderInsets.top, 217 size.width-(borderInsets.left+borderInsets.right), 218 size.height-(borderInsets.top+borderInsets.bottom)); 219 220 FontMetrics fm = g.getFontMetrics(); 221 222 Rectangle textRect,iconRect,viewRect; 223 224 textRect = new Rectangle(); 225 viewRect = new Rectangle(); 226 iconRect = new Rectangle(); 227 228 229 viewRect.width = size.width - (contentAreaInsets.left+contentAreaInsets.right); 230 viewRect.height = size.height - (contentAreaInsets.top+contentAreaInsets.bottom); 231 viewRect.x = contentAreaInsets.left; 232 viewRect.y = contentAreaInsets.top; 233 String llabel = (label != null) ? label : ""; 234 // layout the text and icon 235 String text = SwingUtilities.layoutCompoundLabel( 236 fm, llabel, null, 237 SwingConstants.CENTER, SwingConstants.CENTER, 238 SwingConstants.CENTER, SwingConstants.CENTER, 239 viewRect, iconRect, textRect, 0); 240 241 Font f = getPeerFont(); 242 243 g.setFont(f); 244 245 // perform UI specific press action, e.g. Windows L&F shifts text 246 if (pressed && armed) { 247 paintButtonPressed(g,target); 248 } 249 250 paintText(g, target, textRect, text); 251 252 if (hasFocus()) { 253 // paint UI specific focus 254 paintFocus(g,focusInsets.left, 255 focusInsets.top, 256 size.width-(focusInsets.left+focusInsets.right)-1, 257 size.height-(focusInsets.top+focusInsets.bottom)-1); 258 } 259 } 260 flush(); 261 } 262 263 public void paintBorder(Graphics g, int x, int y, int w, int h) { 264 drawMotif3DRect(g, x, y, w-1, h-1, pressed); 265 } 266 267 protected void paintFocus(Graphics g, int x, int y, int w, int h){ 268 g.setColor(focusColor); 269 g.drawRect(x,y,w,h); 270 } 271 272 protected void paintButtonPressed(Graphics g, Component b) { 273 Dimension size = getPeerSize(); 274 g.setColor(selectColor); 275 g.fillRect(contentAreaInsets.left, 276 contentAreaInsets.top, 277 size.width-(contentAreaInsets.left+contentAreaInsets.right), 278 size.height-(contentAreaInsets.top+contentAreaInsets.bottom)); 279 280 } 281 protected void paintText(Graphics g, Component c, Rectangle textRect, String text) { 282 FontMetrics fm = g.getFontMetrics(); 283 284 int mnemonicIndex = -1; 285 286 /* Draw the Text */ 287 if(isEnabled()) { 288 /*** paint the text normally */ 289 g.setColor(getPeerForeground()); 290 BasicGraphicsUtils.drawStringUnderlineCharAt(g,text,mnemonicIndex , textRect.x , textRect.y + fm.getAscent() ); 291 } 292 else { 293 /*** paint the text disabled ***/ 294 g.setColor(getPeerBackground().brighter()); 295 BasicGraphicsUtils.drawStringUnderlineCharAt(g,text, mnemonicIndex, 296 textRect.x, textRect.y + fm.getAscent()); 297 g.setColor(getPeerBackground().darker()); 298 BasicGraphicsUtils.drawStringUnderlineCharAt(g,text, mnemonicIndex, 299 textRect.x - 1, textRect.y + fm.getAscent() - 1); 300 } 301 } 302 }