001 /* MultiOptionPaneUI.java -- 002 Copyright (C) 2005 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 package javax.swing.plaf.multi; 039 040 import java.awt.Dimension; 041 import java.awt.Graphics; 042 import java.util.Iterator; 043 import java.util.Vector; 044 045 import javax.accessibility.Accessible; 046 import javax.swing.JComponent; 047 import javax.swing.JOptionPane; 048 import javax.swing.LookAndFeel; 049 import javax.swing.UIManager; 050 import javax.swing.plaf.ComponentUI; 051 import javax.swing.plaf.OptionPaneUI; 052 053 /** 054 * A UI delegate that that coordinates multiple {@link OptionPaneUI} 055 * instances, one from the primary look and feel, and one or more from the 056 * auxiliary look and feel(s). 057 * 058 * @see UIManager#addAuxiliaryLookAndFeel(LookAndFeel) 059 */ 060 public class MultiOptionPaneUI extends OptionPaneUI 061 { 062 063 /** A list of references to the actual component UIs. */ 064 protected Vector uis; 065 066 /** 067 * Creates a new <code>MultiOptionPaneUI</code> instance. 068 * 069 * @see #createUI(JComponent) 070 */ 071 public MultiOptionPaneUI() 072 { 073 uis = new Vector(); 074 } 075 076 /** 077 * Creates a delegate object for the specified component. If any auxiliary 078 * look and feels support this component, a <code>MultiOptionPaneUI</code> is 079 * returned, otherwise the UI from the default look and feel is returned. 080 * 081 * @param target the component. 082 * 083 * @see MultiLookAndFeel#createUIs(ComponentUI, Vector, JComponent) 084 */ 085 public static ComponentUI createUI(JComponent target) 086 { 087 MultiOptionPaneUI mui = new MultiOptionPaneUI(); 088 return MultiLookAndFeel.createUIs(mui, mui.uis, target); 089 } 090 091 /** 092 * Calls the {@link ComponentUI#installUI(JComponent)} method for all 093 * the UI delegates managed by this <code>MultiOptionPaneUI</code>. 094 * 095 * @param c the component. 096 */ 097 public void installUI(JComponent c) 098 { 099 Iterator iterator = uis.iterator(); 100 while (iterator.hasNext()) 101 { 102 ComponentUI ui = (ComponentUI) iterator.next(); 103 ui.installUI(c); 104 } 105 } 106 107 /** 108 * Calls the {@link ComponentUI#uninstallUI(JComponent)} method for all 109 * the UI delegates managed by this <code>MultiOptionPaneUI</code>. 110 * 111 * @param c the component. 112 */ 113 public void uninstallUI(JComponent c) 114 { 115 Iterator iterator = uis.iterator(); 116 while (iterator.hasNext()) 117 { 118 ComponentUI ui = (ComponentUI) iterator.next(); 119 ui.uninstallUI(c); 120 } 121 } 122 123 /** 124 * Returns an array containing the UI delegates managed by this 125 * <code>MultiOptionPaneUI</code>. The first item in the array is always 126 * the UI delegate from the installed default look and feel. 127 * 128 * @return An array of UI delegates. 129 */ 130 public ComponentUI[] getUIs() 131 { 132 return MultiLookAndFeel.uisToArray(uis); 133 } 134 135 /** 136 * Calls the {@link ComponentUI#contains(JComponent, int, int)} method for all 137 * the UI delegates managed by this <code>MultiOptionPaneUI</code>, 138 * returning the result for the UI delegate from the primary look and 139 * feel. 140 * 141 * @param c the component. 142 * @param x the x-coordinate. 143 * @param y the y-coordinate. 144 * 145 * @return <code>true</code> if the specified (x, y) coordinate falls within 146 * the bounds of the component as rendered by the UI delegate in the 147 * primary look and feel, and <code>false</code> otherwise. 148 */ 149 public boolean contains(JComponent c, int x, int y) 150 { 151 boolean result = false; 152 Iterator iterator = uis.iterator(); 153 // first UI delegate provides the return value 154 if (iterator.hasNext()) 155 { 156 ComponentUI ui = (ComponentUI) iterator.next(); 157 result = ui.contains(c, x, y); 158 } 159 // return values from auxiliary UI delegates are ignored 160 while (iterator.hasNext()) 161 { 162 ComponentUI ui = (ComponentUI) iterator.next(); 163 /* boolean ignored = */ ui.contains(c, x, y); 164 } 165 return result; 166 } 167 168 /** 169 * Calls the {@link ComponentUI#update(Graphics, JComponent)} method for all 170 * the UI delegates managed by this <code>MultiOptionPaneUI</code>. 171 * 172 * @param g the graphics device. 173 * @param c the component. 174 */ 175 public void update(Graphics g, JComponent c) 176 { 177 Iterator iterator = uis.iterator(); 178 while (iterator.hasNext()) 179 { 180 ComponentUI ui = (ComponentUI) iterator.next(); 181 ui.update(g, c); 182 } 183 } 184 185 /** 186 * Calls the <code>paint(Graphics, JComponent)</code> method for all the UI 187 * delegates managed by this <code>MultiOptionPaneUI</code>. 188 * 189 * @param g the graphics device. 190 * @param c the component. 191 */ 192 public void paint(Graphics g, JComponent c) 193 { 194 Iterator iterator = uis.iterator(); 195 while (iterator.hasNext()) 196 { 197 ComponentUI ui = (ComponentUI) iterator.next(); 198 ui.paint(g, c); 199 } 200 } 201 202 /** 203 * Calls the {@link ComponentUI#getPreferredSize(JComponent)} method for all 204 * the UI delegates managed by this <code>MultiOptionPaneUI</code>, 205 * returning the preferred size for the UI delegate from the primary look and 206 * feel. 207 * 208 * @param c the component. 209 * 210 * @return The preferred size returned by the UI delegate from the primary 211 * look and feel. 212 */ 213 public Dimension getPreferredSize(JComponent c) 214 { 215 Dimension result = null; 216 Iterator iterator = uis.iterator(); 217 // first UI delegate provides the return value 218 if (iterator.hasNext()) 219 { 220 ComponentUI ui = (ComponentUI) iterator.next(); 221 result = ui.getPreferredSize(c); 222 } 223 // return values from auxiliary UI delegates are ignored 224 while (iterator.hasNext()) 225 { 226 ComponentUI ui = (ComponentUI) iterator.next(); 227 /* Dimension ignored = */ ui.getPreferredSize(c); 228 } 229 return result; 230 } 231 232 /** 233 * Calls the {@link ComponentUI#getMinimumSize(JComponent)} method for all 234 * the UI delegates managed by this <code>MultiOptionPaneUI</code>, 235 * returning the minimum size for the UI delegate from the primary look and 236 * feel. 237 * 238 * @param c the component. 239 * 240 * @return The minimum size returned by the UI delegate from the primary 241 * look and feel. 242 */ 243 public Dimension getMinimumSize(JComponent c) 244 { 245 Dimension result = null; 246 Iterator iterator = uis.iterator(); 247 // first UI delegate provides the return value 248 if (iterator.hasNext()) 249 { 250 ComponentUI ui = (ComponentUI) iterator.next(); 251 result = ui.getMinimumSize(c); 252 } 253 // return values from auxiliary UI delegates are ignored 254 while (iterator.hasNext()) 255 { 256 ComponentUI ui = (ComponentUI) iterator.next(); 257 /* Dimension ignored = */ ui.getMinimumSize(c); 258 } 259 return result; 260 } 261 262 /** 263 * Calls the {@link ComponentUI#getMaximumSize(JComponent)} method for all 264 * the UI delegates managed by this <code>MultiOptionPaneUI</code>, 265 * returning the maximum size for the UI delegate from the primary look and 266 * feel. 267 * 268 * @param c the component. 269 * 270 * @return The maximum size returned by the UI delegate from the primary 271 * look and feel. 272 */ 273 public Dimension getMaximumSize(JComponent c) 274 { 275 Dimension result = null; 276 Iterator iterator = uis.iterator(); 277 // first UI delegate provides the return value 278 if (iterator.hasNext()) 279 { 280 ComponentUI ui = (ComponentUI) iterator.next(); 281 result = ui.getMaximumSize(c); 282 } 283 // return values from auxiliary UI delegates are ignored 284 while (iterator.hasNext()) 285 { 286 ComponentUI ui = (ComponentUI) iterator.next(); 287 /* Dimension ignored = */ ui.getMaximumSize(c); 288 } 289 return result; 290 } 291 292 /** 293 * Calls the {@link ComponentUI#getAccessibleChildrenCount(JComponent)} method 294 * for all the UI delegates managed by this <code>MultiOptionPaneUI</code>, 295 * returning the count for the UI delegate from the primary look and 296 * feel. 297 * 298 * @param c the component. 299 * 300 * @return The count returned by the UI delegate from the primary 301 * look and feel. 302 */ 303 public int getAccessibleChildrenCount(JComponent c) 304 { 305 int result = 0; 306 Iterator iterator = uis.iterator(); 307 // first UI delegate provides the return value 308 if (iterator.hasNext()) 309 { 310 ComponentUI ui = (ComponentUI) iterator.next(); 311 result = ui.getAccessibleChildrenCount(c); 312 } 313 // return values from auxiliary UI delegates are ignored 314 while (iterator.hasNext()) 315 { 316 ComponentUI ui = (ComponentUI) iterator.next(); 317 /* int ignored = */ ui.getAccessibleChildrenCount(c); 318 } 319 return result; 320 } 321 322 /** 323 * Calls the {@link ComponentUI#getAccessibleChild(JComponent, int)} method 324 * for all the UI delegates managed by this <code>MultiOptionPaneUI</code>, 325 * returning the child for the UI delegate from the primary look and 326 * feel. 327 * 328 * @param c the component 329 * @param i the child index. 330 * 331 * @return The child returned by the UI delegate from the primary 332 * look and feel. 333 */ 334 public Accessible getAccessibleChild(JComponent c, int i) 335 { 336 Accessible result = null; 337 Iterator iterator = uis.iterator(); 338 // first UI delegate provides the return value 339 if (iterator.hasNext()) 340 { 341 ComponentUI ui = (ComponentUI) iterator.next(); 342 result = ui.getAccessibleChild(c, i); 343 } 344 // return values from auxiliary UI delegates are ignored 345 while (iterator.hasNext()) 346 { 347 ComponentUI ui = (ComponentUI) iterator.next(); 348 /* Accessible ignored = */ ui.getAccessibleChild(c, i); 349 } 350 return result; 351 } 352 353 /** 354 * Calls the {@link OptionPaneUI#selectInitialValue(JOptionPane)} method for 355 * all the UI delegates managed by this <code>MultiOptionPaneUI</code>. 356 * 357 * @param pane the option pane. 358 */ 359 public void selectInitialValue(JOptionPane pane) 360 { 361 Iterator iterator = uis.iterator(); 362 while (iterator.hasNext()) 363 { 364 OptionPaneUI ui = (OptionPaneUI) iterator.next(); 365 ui.selectInitialValue(pane); 366 } 367 } 368 369 /** 370 * Calls the {@link OptionPaneUI#containsCustomComponents(JOptionPane)} 371 * method for all the UI delegates managed by this 372 * <code>MultiOptionPaneUI</code>, returning the result for the UI delegate 373 * from the primary look and feel. 374 * 375 * @param pane the option pane. 376 * 377 * @return The result for the UI delegate from the primary look and feel. 378 */ 379 public boolean containsCustomComponents(JOptionPane pane) 380 { 381 boolean result = false; 382 Iterator iterator = uis.iterator(); 383 // first UI delegate provides the return value 384 if (iterator.hasNext()) 385 { 386 OptionPaneUI ui = (OptionPaneUI) iterator.next(); 387 result = ui.containsCustomComponents(pane); 388 } 389 // return values from auxiliary UI delegates are ignored 390 while (iterator.hasNext()) 391 { 392 OptionPaneUI ui = (OptionPaneUI) iterator.next(); 393 /* boolean ignored = */ ui.containsCustomComponents(pane); 394 } 395 return result; 396 } 397 398 }