Showing the changes to java/pkg/java/awt/Toolkit.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,2608 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1995, 2011, 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 java.awt; | ||
| 27 | |||
| 28 | import java.beans.PropertyChangeEvent; | ||
| 29 | import java.util.MissingResourceException; | ||
| 30 | import java.util.Properties; | ||
| 31 | import java.util.ResourceBundle; | ||
| 32 | import java.util.StringTokenizer; | ||
| 33 | import java.awt.event.*; | ||
| 34 | import java.awt.peer.*; | ||
| 35 | import java.awt.im.InputMethodHighlight; | ||
| 36 | import java.awt.image.ImageObserver; | ||
| 37 | import java.awt.image.ImageProducer; | ||
| 38 | import java.awt.image.ColorModel; | ||
| 39 | import java.awt.datatransfer.Clipboard; | ||
| 40 | import java.awt.dnd.DragSource; | ||
| 41 | import java.awt.dnd.DragGestureRecognizer; | ||
| 42 | import java.awt.dnd.DragGestureEvent; | ||
| 43 | import java.awt.dnd.DragGestureListener; | ||
| 44 | import java.awt.dnd.InvalidDnDOperationException; | ||
| 45 | import java.awt.dnd.peer.DragSourceContextPeer; | ||
| 46 | import java.net.URL; | ||
| 47 | import java.io.File; | ||
| 48 | import java.io.FileInputStream; | ||
| 49 | |||
| 50 | import java.util.*; | ||
| 51 | import sun.util.logging.PlatformLogger; | ||
| 52 | |||
| 53 | import java.beans.PropertyChangeListener; | ||
| 54 | import java.beans.PropertyChangeSupport; | ||
| 55 | import sun.awt.AppContext; | ||
| 56 | |||
| 57 | import sun.awt.HeadlessToolkit; | ||
| 58 | import sun.awt.NullComponentPeer; | ||
| 59 | import sun.awt.PeerEvent; | ||
| 60 | import sun.awt.SunToolkit; | ||
| 61 | import sun.security.util.SecurityConstants; | ||
| 62 | |||
| 63 | import sun.util.CoreResourceBundleControl; | ||
| 64 | |||
| 65 | /** | ||
| 66 | * This class is the abstract superclass of all actual | ||
| 67 | * implementations of the Abstract Window Toolkit. Subclasses of | ||
| 68 | * the <code>Toolkit</code> class are used to bind the various components | ||
| 69 | * to particular native toolkit implementations. | ||
| 70 | * <p> | ||
| 71 | * Many GUI events may be delivered to user | ||
| 72 | * asynchronously, if the opposite is not specified explicitly. | ||
| 73 | * As well as | ||
| 74 | * many GUI operations may be performed asynchronously. | ||
| 75 | * This fact means that if the state of a component is set, and then | ||
| 76 | * the state immediately queried, the returned value may not yet | ||
| 77 | * reflect the requested change. This behavior includes, but is not | ||
| 78 | * limited to: | ||
| 79 | * <ul> | ||
| 80 | * <li>Scrolling to a specified position. | ||
| 81 | * <br>For example, calling <code>ScrollPane.setScrollPosition</code> | ||
| 82 | * and then <code>getScrollPosition</code> may return an incorrect | ||
| 83 | * value if the original request has not yet been processed. | ||
| 84 | * <p> | ||
| 85 | * <li>Moving the focus from one component to another. | ||
| 86 | * <br>For more information, see | ||
| 87 | * <a href="http://java.sun.com/docs/books/tutorial/uiswing/misc/focus.html#transferTiming">Timing | ||
| 88 | * Focus Transfers</a>, a section in | ||
| 89 | * <a href="http://java.sun.com/docs/books/tutorial/uiswing/">The Swing | ||
| 90 | * Tutorial</a>. | ||
| 91 | * <p> | ||
| 92 | * <li>Making a top-level container visible. | ||
| 93 | * <br>Calling <code>setVisible(true)</code> on a <code>Window</code>, | ||
| 94 | * <code>Frame</code> or <code>Dialog</code> may occur | ||
| 95 | * asynchronously. | ||
| 96 | * <p> | ||
| 97 | * <li>Setting the size or location of a top-level container. | ||
| 98 | * <br>Calls to <code>setSize</code>, <code>setBounds</code> or | ||
| 99 | * <code>setLocation</code> on a <code>Window</code>, | ||
| 100 | * <code>Frame</code> or <code>Dialog</code> are forwarded | ||
| 101 | * to the underlying window management system and may be | ||
| 102 | * ignored or modified. See {@link java.awt.Window} for | ||
| 103 | * more information. | ||
| 104 | * </ul> | ||
| 105 | * <p> | ||
| 106 | * Most applications should not call any of the methods in this | ||
| 107 | * class directly. The methods defined by <code>Toolkit</code> are | ||
| 108 | * the "glue" that joins the platform-independent classes in the | ||
| 109 | * <code>java.awt</code> package with their counterparts in | ||
| 110 | * <code>java.awt.peer</code>. Some methods defined by | ||
| 111 | * <code>Toolkit</code> query the native operating system directly. | ||
| 112 | * | ||
| 113 | * @author Sami Shaio | ||
| 114 | * @author Arthur van Hoff | ||
| 115 | * @author Fred Ecks | ||
| 116 | * @since JDK1.0 | ||
| 117 | */ | ||
| 118 | public abstract class Toolkit { | ||
| 119 | |||
| 120 | /** | ||
| 121 | * Creates this toolkit's implementation of the <code>Desktop</code> | ||
| 122 | * using the specified peer interface. | ||
| 123 | * @param target the desktop to be implemented | ||
| 124 | * @return this toolkit's implementation of the <code>Desktop</code> | ||
| 125 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 126 | * returns true | ||
| 127 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 128 | * @see java.awt.Desktop | ||
| 129 | * @see java.awt.peer.DesktopPeer | ||
| 130 | * @since 1.6 | ||
| 131 | */ | ||
| 132 | protected abstract DesktopPeer createDesktopPeer(Desktop target) | ||
| 133 | throws HeadlessException; | ||
| 134 | |||
| 135 | |||
| 136 | /** | ||
| 137 | * Creates this toolkit's implementation of <code>Button</code> using | ||
| 138 | * the specified peer interface. | ||
| 139 | * @param target the button to be implemented. | ||
| 140 | * @return this toolkit's implementation of <code>Button</code>. | ||
| 141 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 142 | * returns true | ||
| 143 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 144 | * @see java.awt.Button | ||
| 145 | * @see java.awt.peer.ButtonPeer | ||
| 146 | */ | ||
| 147 | protected abstract ButtonPeer createButton(Button target) | ||
| 148 | throws HeadlessException; | ||
| 149 | |||
| 150 | /** | ||
| 151 | * Creates this toolkit's implementation of <code>TextField</code> using | ||
| 152 | * the specified peer interface. | ||
| 153 | * @param target the text field to be implemented. | ||
| 154 | * @return this toolkit's implementation of <code>TextField</code>. | ||
| 155 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 156 | * returns true | ||
| 157 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 158 | * @see java.awt.TextField | ||
| 159 | * @see java.awt.peer.TextFieldPeer | ||
| 160 | */ | ||
| 161 | protected abstract TextFieldPeer createTextField(TextField target) | ||
| 162 | throws HeadlessException; | ||
| 163 | |||
| 164 | /** | ||
| 165 | * Creates this toolkit's implementation of <code>Label</code> using | ||
| 166 | * the specified peer interface. | ||
| 167 | * @param target the label to be implemented. | ||
| 168 | * @return this toolkit's implementation of <code>Label</code>. | ||
| 169 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 170 | * returns true | ||
| 171 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 172 | * @see java.awt.Label | ||
| 173 | * @see java.awt.peer.LabelPeer | ||
| 174 | */ | ||
| 175 | protected abstract LabelPeer createLabel(Label target) | ||
| 176 | throws HeadlessException; | ||
| 177 | |||
| 178 | /** | ||
| 179 | * Creates this toolkit's implementation of <code>List</code> using | ||
| 180 | * the specified peer interface. | ||
| 181 | * @param target the list to be implemented. | ||
| 182 | * @return this toolkit's implementation of <code>List</code>. | ||
| 183 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 184 | * returns true | ||
| 185 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 186 | * @see java.awt.List | ||
| 187 | * @see java.awt.peer.ListPeer | ||
| 188 | */ | ||
| 189 | protected abstract ListPeer createList(java.awt.List target) | ||
| 190 | throws HeadlessException; | ||
| 191 | |||
| 192 | /** | ||
| 193 | * Creates this toolkit's implementation of <code>Checkbox</code> using | ||
| 194 | * the specified peer interface. | ||
| 195 | * @param target the check box to be implemented. | ||
| 196 | * @return this toolkit's implementation of <code>Checkbox</code>. | ||
| 197 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 198 | * returns true | ||
| 199 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 200 | * @see java.awt.Checkbox | ||
| 201 | * @see java.awt.peer.CheckboxPeer | ||
| 202 | */ | ||
| 203 | protected abstract CheckboxPeer createCheckbox(Checkbox target) | ||
| 204 | throws HeadlessException; | ||
| 205 | |||
| 206 | /** | ||
| 207 | * Creates this toolkit's implementation of <code>Scrollbar</code> using | ||
| 208 | * the specified peer interface. | ||
| 209 | * @param target the scroll bar to be implemented. | ||
| 210 | * @return this toolkit's implementation of <code>Scrollbar</code>. | ||
| 211 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 212 | * returns true | ||
| 213 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 214 | * @see java.awt.Scrollbar | ||
| 215 | * @see java.awt.peer.ScrollbarPeer | ||
| 216 | */ | ||
| 217 | protected abstract ScrollbarPeer createScrollbar(Scrollbar target) | ||
| 218 | throws HeadlessException; | ||
| 219 | |||
| 220 | /** | ||
| 221 | * Creates this toolkit's implementation of <code>ScrollPane</code> using | ||
| 222 | * the specified peer interface. | ||
| 223 | * @param target the scroll pane to be implemented. | ||
| 224 | * @return this toolkit's implementation of <code>ScrollPane</code>. | ||
| 225 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 226 | * returns true | ||
| 227 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 228 | * @see java.awt.ScrollPane | ||
| 229 | * @see java.awt.peer.ScrollPanePeer | ||
| 230 | * @since JDK1.1 | ||
| 231 | */ | ||
| 232 | protected abstract ScrollPanePeer createScrollPane(ScrollPane target) | ||
| 233 | throws HeadlessException; | ||
| 234 | |||
| 235 | /** | ||
| 236 | * Creates this toolkit's implementation of <code>TextArea</code> using | ||
| 237 | * the specified peer interface. | ||
| 238 | * @param target the text area to be implemented. | ||
| 239 | * @return this toolkit's implementation of <code>TextArea</code>. | ||
| 240 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 241 | * returns true | ||
| 242 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 243 | * @see java.awt.TextArea | ||
| 244 | * @see java.awt.peer.TextAreaPeer | ||
| 245 | */ | ||
| 246 | protected abstract TextAreaPeer createTextArea(TextArea target) | ||
| 247 | throws HeadlessException; | ||
| 248 | |||
| 249 | /** | ||
| 250 | * Creates this toolkit's implementation of <code>Choice</code> using | ||
| 251 | * the specified peer interface. | ||
| 252 | * @param target the choice to be implemented. | ||
| 253 | * @return this toolkit's implementation of <code>Choice</code>. | ||
| 254 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 255 | * returns true | ||
| 256 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 257 | * @see java.awt.Choice | ||
| 258 | * @see java.awt.peer.ChoicePeer | ||
| 259 | */ | ||
| 260 | protected abstract ChoicePeer createChoice(Choice target) | ||
| 261 | throws HeadlessException; | ||
| 262 | |||
| 263 | /** | ||
| 264 | * Creates this toolkit's implementation of <code>Frame</code> using | ||
| 265 | * the specified peer interface. | ||
| 266 | * @param target the frame to be implemented. | ||
| 267 | * @return this toolkit's implementation of <code>Frame</code>. | ||
| 268 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 269 | * returns true | ||
| 270 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 271 | * @see java.awt.Frame | ||
| 272 | * @see java.awt.peer.FramePeer | ||
| 273 | */ | ||
| 274 | protected abstract FramePeer createFrame(Frame target) | ||
| 275 | throws HeadlessException; | ||
| 276 | |||
| 277 | /** | ||
| 278 | * Creates this toolkit's implementation of <code>Canvas</code> using | ||
| 279 | * the specified peer interface. | ||
| 280 | * @param target the canvas to be implemented. | ||
| 281 | * @return this toolkit's implementation of <code>Canvas</code>. | ||
| 282 | * @see java.awt.Canvas | ||
| 283 | * @see java.awt.peer.CanvasPeer | ||
| 284 | */ | ||
| 285 | protected abstract CanvasPeer createCanvas(Canvas target); | ||
| 286 | |||
| 287 | /** | ||
| 288 | * Creates this toolkit's implementation of <code>Panel</code> using | ||
| 289 | * the specified peer interface. | ||
| 290 | * @param target the panel to be implemented. | ||
| 291 | * @return this toolkit's implementation of <code>Panel</code>. | ||
| 292 | * @see java.awt.Panel | ||
| 293 | * @see java.awt.peer.PanelPeer | ||
| 294 | */ | ||
| 295 | protected abstract PanelPeer createPanel(Panel target); | ||
| 296 | |||
| 297 | /** | ||
| 298 | * Creates this toolkit's implementation of <code>Window</code> using | ||
| 299 | * the specified peer interface. | ||
| 300 | * @param target the window to be implemented. | ||
| 301 | * @return this toolkit's implementation of <code>Window</code>. | ||
| 302 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 303 | * returns true | ||
| 304 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 305 | * @see java.awt.Window | ||
| 306 | * @see java.awt.peer.WindowPeer | ||
| 307 | */ | ||
| 308 | protected abstract WindowPeer createWindow(Window target) | ||
| 309 | throws HeadlessException; | ||
| 310 | |||
| 311 | /** | ||
| 312 | * Creates this toolkit's implementation of <code>Dialog</code> using | ||
| 313 | * the specified peer interface. | ||
| 314 | * @param target the dialog to be implemented. | ||
| 315 | * @return this toolkit's implementation of <code>Dialog</code>. | ||
| 316 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 317 | * returns true | ||
| 318 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 319 | * @see java.awt.Dialog | ||
| 320 | * @see java.awt.peer.DialogPeer | ||
| 321 | */ | ||
| 322 | protected abstract DialogPeer createDialog(Dialog target) | ||
| 323 | throws HeadlessException; | ||
| 324 | |||
| 325 | /** | ||
| 326 | * Creates this toolkit's implementation of <code>MenuBar</code> using | ||
| 327 | * the specified peer interface. | ||
| 328 | * @param target the menu bar to be implemented. | ||
| 329 | * @return this toolkit's implementation of <code>MenuBar</code>. | ||
| 330 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 331 | * returns true | ||
| 332 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 333 | * @see java.awt.MenuBar | ||
| 334 | * @see java.awt.peer.MenuBarPeer | ||
| 335 | */ | ||
| 336 | protected abstract MenuBarPeer createMenuBar(MenuBar target) | ||
| 337 | throws HeadlessException; | ||
| 338 | |||
| 339 | /** | ||
| 340 | * Creates this toolkit's implementation of <code>Menu</code> using | ||
| 341 | * the specified peer interface. | ||
| 342 | * @param target the menu to be implemented. | ||
| 343 | * @return this toolkit's implementation of <code>Menu</code>. | ||
| 344 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 345 | * returns true | ||
| 346 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 347 | * @see java.awt.Menu | ||
| 348 | * @see java.awt.peer.MenuPeer | ||
| 349 | */ | ||
| 350 | protected abstract MenuPeer createMenu(Menu target) | ||
| 351 | throws HeadlessException; | ||
| 352 | |||
| 353 | /** | ||
| 354 | * Creates this toolkit's implementation of <code>PopupMenu</code> using | ||
| 355 | * the specified peer interface. | ||
| 356 | * @param target the popup menu to be implemented. | ||
| 357 | * @return this toolkit's implementation of <code>PopupMenu</code>. | ||
| 358 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 359 | * returns true | ||
| 360 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 361 | * @see java.awt.PopupMenu | ||
| 362 | * @see java.awt.peer.PopupMenuPeer | ||
| 363 | * @since JDK1.1 | ||
| 364 | */ | ||
| 365 | protected abstract PopupMenuPeer createPopupMenu(PopupMenu target) | ||
| 366 | throws HeadlessException; | ||
| 367 | |||
| 368 | /** | ||
| 369 | * Creates this toolkit's implementation of <code>MenuItem</code> using | ||
| 370 | * the specified peer interface. | ||
| 371 | * @param target the menu item to be implemented. | ||
| 372 | * @return this toolkit's implementation of <code>MenuItem</code>. | ||
| 373 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 374 | * returns true | ||
| 375 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 376 | * @see java.awt.MenuItem | ||
| 377 | * @see java.awt.peer.MenuItemPeer | ||
| 378 | */ | ||
| 379 | protected abstract MenuItemPeer createMenuItem(MenuItem target) | ||
| 380 | throws HeadlessException; | ||
| 381 | |||
| 382 | /** | ||
| 383 | * Creates this toolkit's implementation of <code>FileDialog</code> using | ||
| 384 | * the specified peer interface. | ||
| 385 | * @param target the file dialog to be implemented. | ||
| 386 | * @return this toolkit's implementation of <code>FileDialog</code>. | ||
| 387 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 388 | * returns true | ||
| 389 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 390 | * @see java.awt.FileDialog | ||
| 391 | * @see java.awt.peer.FileDialogPeer | ||
| 392 | */ | ||
| 393 | protected abstract FileDialogPeer createFileDialog(FileDialog target) | ||
| 394 | throws HeadlessException; | ||
| 395 | |||
| 396 | /** | ||
| 397 | * Creates this toolkit's implementation of <code>CheckboxMenuItem</code> using | ||
| 398 | * the specified peer interface. | ||
| 399 | * @param target the checkbox menu item to be implemented. | ||
| 400 | * @return this toolkit's implementation of <code>CheckboxMenuItem</code>. | ||
| 401 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 402 | * returns true | ||
| 403 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 404 | * @see java.awt.CheckboxMenuItem | ||
| 405 | * @see java.awt.peer.CheckboxMenuItemPeer | ||
| 406 | */ | ||
| 407 | protected abstract CheckboxMenuItemPeer createCheckboxMenuItem( | ||
| 408 | CheckboxMenuItem target) throws HeadlessException; | ||
| 409 | |||
| 410 | /** | ||
| 411 | * Obtains this toolkit's implementation of helper class for | ||
| 412 | * <code>MouseInfo</code> operations. | ||
| 413 | * @return this toolkit's implementation of helper for <code>MouseInfo</code> | ||
| 414 | * @throws UnsupportedOperationException if this operation is not implemented | ||
| 415 | * @see java.awt.peer.MouseInfoPeer | ||
| 416 | * @see java.awt.MouseInfo | ||
| 417 | * @since 1.5 | ||
| 418 | */ | ||
| 419 | protected MouseInfoPeer getMouseInfoPeer() { | ||
| 420 | throw new UnsupportedOperationException("Not implemented"); | ||
| 421 | } | ||
| 422 | |||
| 423 | private static LightweightPeer lightweightMarker; | ||
| 424 | |||
| 425 | /** | ||
| 426 | * Creates a peer for a component or container. This peer is windowless | ||
| 427 | * and allows the Component and Container classes to be extended directly | ||
| 428 | * to create windowless components that are defined entirely in java. | ||
| 429 | * | ||
| 430 | * @param target The Component to be created. | ||
| 431 | */ | ||
| 432 | protected LightweightPeer createComponent(Component target) { | ||
| 433 | if (lightweightMarker == null) { | ||
| 434 | lightweightMarker = new NullComponentPeer(); | ||
| 435 | } | ||
| 436 | return lightweightMarker; | ||
| 437 | } | ||
| 438 | |||
| 439 | /** | ||
| 440 | * Creates this toolkit's implementation of <code>Font</code> using | ||
| 441 | * the specified peer interface. | ||
| 442 | * @param name the font to be implemented | ||
| 443 | * @param style the style of the font, such as <code>PLAIN</code>, | ||
| 444 | * <code>BOLD</code>, <code>ITALIC</code>, or a combination | ||
| 445 | * @return this toolkit's implementation of <code>Font</code> | ||
| 446 | * @see java.awt.Font | ||
| 447 | * @see java.awt.peer.FontPeer | ||
| 448 | * @see java.awt.GraphicsEnvironment#getAllFonts | ||
| 449 | * @deprecated see java.awt.GraphicsEnvironment#getAllFonts | ||
| 450 | */ | ||
| 451 | @Deprecated | ||
| 452 | protected abstract FontPeer getFontPeer(String name, int style); | ||
| 453 | |||
| 454 | // The following method is called by the private method | ||
| 455 | // <code>updateSystemColors</code> in <code>SystemColor</code>. | ||
| 456 | |||
| 457 | /** | ||
| 458 | * Fills in the integer array that is supplied as an argument | ||
| 459 | * with the current system color values. | ||
| 460 | * | ||
| 461 | * @param systemColors an integer array. | ||
| 462 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 463 | * returns true | ||
| 464 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 465 | * @since JDK1.1 | ||
| 466 | */ | ||
| 467 | protected void loadSystemColors(int[] systemColors) | ||
| 468 | throws HeadlessException { | ||
| 469 | GraphicsEnvironment.checkHeadless(); | ||
| 470 | } | ||
| 471 | |||
| 472 | /** | ||
| 473 | * Controls whether the layout of Containers is validated dynamically | ||
| 474 | * during resizing, or statically, after resizing is complete. | ||
| 475 | * Use {@code isDynamicLayoutActive()} to detect if this feature enabled | ||
| 476 | * in this program and is supported by this operating system | ||
| 477 | * and/or window manager. | ||
| 478 | * Note that this feature is supported not on all platforms, and | ||
| 479 | * conversely, that this feature cannot be turned off on some platforms. | ||
| 480 | * On these platforms where dynamic layout during resizing is not supported | ||
| 481 | * (or is always supported), setting this property has no effect. | ||
| 482 | * Note that this feature can be set or unset as a property of the | ||
| 483 | * operating system or window manager on some platforms. On such | ||
| 484 | * platforms, the dynamic resize property must be set at the operating | ||
| 485 | * system or window manager level before this method can take effect. | ||
| 486 | * This method does not change support or settings of the underlying | ||
| 487 | * operating system or | ||
| 488 | * window manager. The OS/WM support can be | ||
| 489 | * queried using getDesktopProperty("awt.dynamicLayoutSupported") method. | ||
| 490 | * | ||
| 491 | * @param dynamic If true, Containers should re-layout their | ||
| 492 | * components as the Container is being resized. If false, | ||
| 493 | * the layout will be validated after resizing is completed. | ||
| 494 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 495 | * returns true | ||
| 496 | * @see #isDynamicLayoutSet() | ||
| 497 | * @see #isDynamicLayoutActive() | ||
| 498 | * @see #getDesktopProperty(String propertyName) | ||
| 499 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 500 | * @since 1.4 | ||
| 501 | */ | ||
| 502 | public void setDynamicLayout(boolean dynamic) | ||
| 503 | throws HeadlessException { | ||
| 504 | GraphicsEnvironment.checkHeadless(); | ||
| 505 | } | ||
| 506 | |||
| 507 | /** | ||
| 508 | * Returns whether the layout of Containers is validated dynamically | ||
| 509 | * during resizing, or statically, after resizing is complete. | ||
| 510 | * Note: this method returns the value that was set programmatically; | ||
| 511 | * it does not reflect support at the level of the operating system | ||
| 512 | * or window manager for dynamic layout on resizing, or the current | ||
| 513 | * operating system or window manager settings. The OS/WM support can | ||
| 514 | * be queried using getDesktopProperty("awt.dynamicLayoutSupported"). | ||
| 515 | * | ||
| 516 | * @return true if validation of Containers is done dynamically, | ||
| 517 | * false if validation is done after resizing is finished. | ||
| 518 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 519 | * returns true | ||
| 520 | * @see #setDynamicLayout(boolean dynamic) | ||
| 521 | * @see #isDynamicLayoutActive() | ||
| 522 | * @see #getDesktopProperty(String propertyName) | ||
| 523 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 524 | * @since 1.4 | ||
| 525 | */ | ||
| 526 | protected boolean isDynamicLayoutSet() | ||
| 527 | throws HeadlessException { | ||
| 528 | GraphicsEnvironment.checkHeadless(); | ||
| 529 | |||
| 530 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 531 | return Toolkit.getDefaultToolkit().isDynamicLayoutSet(); | ||
| 532 | } else { | ||
| 533 | return false; | ||
| 534 | } | ||
| 535 | } | ||
| 536 | |||
| 537 | /** | ||
| 538 | * Returns whether dynamic layout of Containers on resize is | ||
| 539 | * currently active (both set in program | ||
| 540 | *( {@code isDynamicLayoutSet()} ) | ||
| 541 | *, and supported | ||
| 542 | * by the underlying operating system and/or window manager). | ||
| 543 | * If dynamic layout is currently inactive then Containers | ||
| 544 | * re-layout their components when resizing is completed. As a result | ||
| 545 | * the {@code Component.validate()} method will be invoked only | ||
| 546 | * once per resize. | ||
| 547 | * If dynamic layout is currently active then Containers | ||
| 548 | * re-layout their components on every native resize event and | ||
| 549 | * the {@code validate()} method will be invoked each time. | ||
| 550 | * The OS/WM support can be queried using | ||
| 551 | * the getDesktopProperty("awt.dynamicLayoutSupported") method. | ||
| 552 | * | ||
| 553 | * @return true if dynamic layout of Containers on resize is | ||
| 554 | * currently active, false otherwise. | ||
| 555 | * @exception HeadlessException if the GraphicsEnvironment.isHeadless() | ||
| 556 | * method returns true | ||
| 557 | * @see #setDynamicLayout(boolean dynamic) | ||
| 558 | * @see #isDynamicLayoutSet() | ||
| 559 | * @see #getDesktopProperty(String propertyName) | ||
| 560 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 561 | * @since 1.4 | ||
| 562 | */ | ||
| 563 | public boolean isDynamicLayoutActive() | ||
| 564 | throws HeadlessException { | ||
| 565 | GraphicsEnvironment.checkHeadless(); | ||
| 566 | |||
| 567 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 568 | return Toolkit.getDefaultToolkit().isDynamicLayoutActive(); | ||
| 569 | } else { | ||
| 570 | return false; | ||
| 571 | } | ||
| 572 | } | ||
| 573 | |||
| 574 | /** | ||
| 575 | * Gets the size of the screen. On systems with multiple displays, the | ||
| 576 | * primary display is used. Multi-screen aware display dimensions are | ||
| 577 | * available from <code>GraphicsConfiguration</code> and | ||
| 578 | * <code>GraphicsDevice</code>. | ||
| 579 | * @return the size of this toolkit's screen, in pixels. | ||
| 580 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 581 | * returns true | ||
| 582 | * @see java.awt.GraphicsConfiguration#getBounds | ||
| 583 | * @see java.awt.GraphicsDevice#getDisplayMode | ||
| 584 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 585 | */ | ||
| 586 | public abstract Dimension getScreenSize() | ||
| 587 | throws HeadlessException; | ||
| 588 | |||
| 589 | /** | ||
| 590 | * Returns the screen resolution in dots-per-inch. | ||
| 591 | * @return this toolkit's screen resolution, in dots-per-inch. | ||
| 592 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 593 | * returns true | ||
| 594 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 595 | */ | ||
| 596 | public abstract int getScreenResolution() | ||
| 597 | throws HeadlessException; | ||
| 598 | |||
| 599 | /** | ||
| 600 | * Gets the insets of the screen. | ||
| 601 | * @param gc a <code>GraphicsConfiguration</code> | ||
| 602 | * @return the insets of this toolkit's screen, in pixels. | ||
| 603 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 604 | * returns true | ||
| 605 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 606 | * @since 1.4 | ||
| 607 | */ | ||
| 608 | public Insets getScreenInsets(GraphicsConfiguration gc) | ||
| 609 | throws HeadlessException { | ||
| 610 | GraphicsEnvironment.checkHeadless(); | ||
| 611 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 612 | return Toolkit.getDefaultToolkit().getScreenInsets(gc); | ||
| 613 | } else { | ||
| 614 | return new Insets(0, 0, 0, 0); | ||
| 615 | } | ||
| 616 | } | ||
| 617 | |||
| 618 | /** | ||
| 619 | * Determines the color model of this toolkit's screen. | ||
| 620 | * <p> | ||
| 621 | * <code>ColorModel</code> is an abstract class that | ||
| 622 | * encapsulates the ability to translate between the | ||
| 623 | * pixel values of an image and its red, green, blue, | ||
| 624 | * and alpha components. | ||
| 625 | * <p> | ||
| 626 | * This toolkit method is called by the | ||
| 627 | * <code>getColorModel</code> method | ||
| 628 | * of the <code>Component</code> class. | ||
| 629 | * @return the color model of this toolkit's screen. | ||
| 630 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 631 | * returns true | ||
| 632 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 633 | * @see java.awt.image.ColorModel | ||
| 634 | * @see java.awt.Component#getColorModel | ||
| 635 | */ | ||
| 636 | public abstract ColorModel getColorModel() | ||
| 637 | throws HeadlessException; | ||
| 638 | |||
| 639 | /** | ||
| 640 | * Returns the names of the available fonts in this toolkit.<p> | ||
| 641 | * For 1.1, the following font names are deprecated (the replacement | ||
| 642 | * name follows): | ||
| 643 | * <ul> | ||
| 644 | * <li>TimesRoman (use Serif) | ||
| 645 | * <li>Helvetica (use SansSerif) | ||
| 646 | * <li>Courier (use Monospaced) | ||
| 647 | * </ul><p> | ||
| 648 | * The ZapfDingbats fontname is also deprecated in 1.1 but the characters | ||
| 649 | * are defined in Unicode starting at 0x2700, and as of 1.1 Java supports | ||
| 650 | * those characters. | ||
| 651 | * @return the names of the available fonts in this toolkit. | ||
| 652 | * @deprecated see {@link java.awt.GraphicsEnvironment#getAvailableFontFamilyNames()} | ||
| 653 | * @see java.awt.GraphicsEnvironment#getAvailableFontFamilyNames() | ||
| 654 | */ | ||
| 655 | @Deprecated | ||
| 656 | public abstract String[] getFontList(); | ||
| 657 | |||
| 658 | /** | ||
| 659 | * Gets the screen device metrics for rendering of the font. | ||
| 660 | * @param font a font | ||
| 661 | * @return the screen metrics of the specified font in this toolkit | ||
| 662 | * @deprecated As of JDK version 1.2, replaced by the <code>Font</code> | ||
| 663 | * method <code>getLineMetrics</code>. | ||
| 664 | * @see java.awt.font.LineMetrics | ||
| 665 | * @see java.awt.Font#getLineMetrics | ||
| 666 | * @see java.awt.GraphicsEnvironment#getScreenDevices | ||
| 667 | */ | ||
| 668 | @Deprecated | ||
| 669 | public abstract FontMetrics getFontMetrics(Font font); | ||
| 670 | |||
| 671 | /** | ||
| 672 | * Synchronizes this toolkit's graphics state. Some window systems | ||
| 673 | * may do buffering of graphics events. | ||
| 674 | * <p> | ||
| 675 | * This method ensures that the display is up-to-date. It is useful | ||
| 676 | * for animation. | ||
| 677 | */ | ||
| 678 | public abstract void sync(); | ||
| 679 | |||
| 680 | /** | ||
| 681 | * The default toolkit. | ||
| 682 | */ | ||
| 683 | private static Toolkit toolkit; | ||
| 684 | |||
| 685 | /** | ||
| 686 | * Used internally by the assistive technologies functions; set at | ||
| 687 | * init time and used at load time | ||
| 688 | */ | ||
| 689 | private static String atNames; | ||
| 690 | |||
| 691 | /** | ||
| 692 | * Initializes properties related to assistive technologies. | ||
| 693 | * These properties are used both in the loadAssistiveProperties() | ||
| 694 | * function below, as well as other classes in the jdk that depend | ||
| 695 | * on the properties (such as the use of the screen_magnifier_present | ||
| 696 | * property in Java2D hardware acceleration initialization). The | ||
| 697 | * initialization of the properties must be done before the platform- | ||
| 698 | * specific Toolkit class is instantiated so that all necessary | ||
| 699 | * properties are set up properly before any classes dependent upon them | ||
| 700 | * are initialized. | ||
| 701 | */ | ||
| 702 | private static void initAssistiveTechnologies() { | ||
| 703 | |||
| 704 | // Get accessibility properties | ||
| 705 | final String sep = File.separator; | ||
| 706 | final Properties properties = new Properties(); | ||
| 707 | |||
| 708 | |||
| 709 | atNames = (String)java.security.AccessController.doPrivileged( | ||
| 710 | new java.security.PrivilegedAction() { | ||
| 711 | public Object run() { | ||
| 712 | |||
| 713 | // Try loading the per-user accessibility properties file. | ||
| 714 | try { | ||
| 715 | File propsFile = new File( | ||
| 716 | System.getProperty("user.home") + | ||
| 717 | sep + ".accessibility.properties"); | ||
| 718 | FileInputStream in = | ||
| 719 | new FileInputStream(propsFile); | ||
| 720 | |||
| 721 | // Inputstream has been buffered in Properties class | ||
| 722 | properties.load(in); | ||
| 723 | in.close(); | ||
| 724 | } catch (Exception e) { | ||
| 725 | // Per-user accessibility properties file does not exist | ||
| 726 | } | ||
| 727 | |||
| 728 | // Try loading the system-wide accessibility properties | ||
| 729 | // file only if a per-user accessibility properties | ||
| 730 | // file does not exist or is empty. | ||
| 731 | if (properties.size() == 0) { | ||
| 732 | try { | ||
| 733 | File propsFile = new File( | ||
| 734 | System.getProperty("java.home") + sep + "lib" + | ||
| 735 | sep + "accessibility.properties"); | ||
| 736 | FileInputStream in = | ||
| 737 | new FileInputStream(propsFile); | ||
| 738 | |||
| 739 | // Inputstream has been buffered in Properties class | ||
| 740 | properties.load(in); | ||
| 741 | in.close(); | ||
| 742 | } catch (Exception e) { | ||
| 743 | // System-wide accessibility properties file does | ||
| 744 | // not exist; | ||
| 745 | } | ||
| 746 | } | ||
| 747 | |||
| 748 | // Get whether a screen magnifier is present. First check | ||
| 749 | // the system property and then check the properties file. | ||
| 750 | String magPresent = System.getProperty("javax.accessibility.screen_magnifier_present"); | ||
| 751 | if (magPresent == null) { | ||
| 752 | magPresent = properties.getProperty("screen_magnifier_present", null); | ||
| 753 | if (magPresent != null) { | ||
| 754 | System.setProperty("javax.accessibility.screen_magnifier_present", magPresent); | ||
| 755 | } | ||
| 756 | } | ||
| 757 | |||
| 758 | // Get the names of any assistive technolgies to load. First | ||
| 759 | // check the system property and then check the properties | ||
| 760 | // file. | ||
| 761 | String classNames = System.getProperty("javax.accessibility.assistive_technologies"); | ||
| 762 | if (classNames == null) { | ||
| 763 | classNames = properties.getProperty("assistive_technologies", null); | ||
| 764 | if (classNames != null) { | ||
| 765 | System.setProperty("javax.accessibility.assistive_technologies", classNames); | ||
| 766 | } | ||
| 767 | } | ||
| 768 | return classNames; | ||
| 769 | } | ||
| 770 | }); | ||
| 771 | } | ||
| 772 | |||
| 773 | /** | ||
| 774 | * Loads additional classes into the VM, using the property | ||
| 775 | * 'assistive_technologies' specified in the Sun reference | ||
| 776 | * implementation by a line in the 'accessibility.properties' | ||
| 777 | * file. The form is "assistive_technologies=..." where | ||
| 778 | * the "..." is a comma-separated list of assistive technology | ||
| 779 | * classes to load. Each class is loaded in the order given | ||
| 780 | * and a single instance of each is created using | ||
| 781 | * Class.forName(class).newInstance(). All errors are handled | ||
| 782 | * via an AWTError exception. | ||
| 783 | * | ||
| 784 | * <p>The assumption is made that assistive technology classes are supplied | ||
| 785 | * as part of INSTALLED (as opposed to: BUNDLED) extensions or specified | ||
| 786 | * on the class path | ||
| 787 | * (and therefore can be loaded using the class loader returned by | ||
| 788 | * a call to <code>ClassLoader.getSystemClassLoader</code>, whose | ||
| 789 | * delegation parent is the extension class loader for installed | ||
| 790 | * extensions). | ||
| 791 | */ | ||
| 792 | private static void loadAssistiveTechnologies() { | ||
| 793 | // Load any assistive technologies | ||
| 794 | if (atNames != null) { | ||
| 795 | ClassLoader cl = ClassLoader.getSystemClassLoader(); | ||
| 796 | StringTokenizer parser = new StringTokenizer(atNames," ,"); | ||
| 797 | String atName; | ||
| 798 | while (parser.hasMoreTokens()) { | ||
| 799 | atName = parser.nextToken(); | ||
| 800 | try { | ||
| 801 | Class clazz; | ||
| 802 | if (cl != null) { | ||
| 803 | clazz = cl.loadClass(atName); | ||
| 804 | } else { | ||
| 805 | clazz = Class.forName(atName); | ||
| 806 | } | ||
| 807 | clazz.newInstance(); | ||
| 808 | } catch (ClassNotFoundException e) { | ||
| 809 | throw new AWTError("Assistive Technology not found: " | ||
| 810 | + atName); | ||
| 811 | } catch (InstantiationException e) { | ||
| 812 | throw new AWTError("Could not instantiate Assistive" | ||
| 813 | + " Technology: " + atName); | ||
| 814 | } catch (IllegalAccessException e) { | ||
| 815 | throw new AWTError("Could not access Assistive" | ||
| 816 | + " Technology: " + atName); | ||
| 817 | } catch (Exception e) { | ||
| 818 | throw new AWTError("Error trying to install Assistive" | ||
| 819 | + " Technology: " + atName + " " + e); | ||
| 820 | } | ||
| 821 | } | ||
| 822 | } | ||
| 823 | } | ||
| 824 | |||
| 825 | /** | ||
| 826 | * Gets the default toolkit. | ||
| 827 | * <p> | ||
| 828 | * If a system property named <code>"java.awt.headless"</code> is set | ||
| 829 | * to <code>true</code> then the headless implementation | ||
| 830 | * of <code>Toolkit</code> is used. | ||
| 831 | * <p> | ||
| 832 | * If there is no <code>"java.awt.headless"</code> or it is set to | ||
| 833 | * <code>false</code> and there is a system property named | ||
| 834 | * <code>"awt.toolkit"</code>, | ||
| 835 | * that property is treated as the name of a class that is a subclass | ||
| 836 | * of <code>Toolkit</code>; | ||
| 837 | * otherwise the default platform-specific implementation of | ||
| 838 | * <code>Toolkit</code> is used. | ||
| 839 | * <p> | ||
| 840 | * Also loads additional classes into the VM, using the property | ||
| 841 | * 'assistive_technologies' specified in the Sun reference | ||
| 842 | * implementation by a line in the 'accessibility.properties' | ||
| 843 | * file. The form is "assistive_technologies=..." where | ||
| 844 | * the "..." is a comma-separated list of assistive technology | ||
| 845 | * classes to load. Each class is loaded in the order given | ||
| 846 | * and a single instance of each is created using | ||
| 847 | * Class.forName(class).newInstance(). This is done just after | ||
| 848 | * the AWT toolkit is created. All errors are handled via an | ||
| 849 | * AWTError exception. | ||
| 850 | * @return the default toolkit. | ||
| 851 | * @exception AWTError if a toolkit could not be found, or | ||
| 852 | * if one could not be accessed or instantiated. | ||
| 853 | */ | ||
| 854 | public static synchronized Toolkit getDefaultToolkit() { | ||
| 855 | if (toolkit == null) { | ||
| 856 | try { | ||
| 857 | // We disable the JIT during toolkit initialization. This | ||
| 858 | // tends to touch lots of classes that aren't needed again | ||
| 859 | // later and therefore JITing is counter-productiive. | ||
| 860 | java.lang.Compiler.disable(); | ||
| 861 | |||
| 862 | java.security.AccessController.doPrivileged( | ||
| 863 | new java.security.PrivilegedAction() { | ||
| 864 | public Object run() { | ||
| 865 | String nm = null; | ||
| 866 | Class cls = null; | ||
| 867 | try { | ||
| 868 | nm = System.getProperty("awt.toolkit"); | ||
| 869 | try { | ||
| 870 | cls = Class.forName(nm); | ||
| 871 | } catch (ClassNotFoundException e) { | ||
| 872 | ClassLoader cl = ClassLoader.getSystemClassLoader(); | ||
| 873 | if (cl != null) { | ||
| 874 | try { | ||
| 875 | cls = cl.loadClass(nm); | ||
| 876 | } catch (ClassNotFoundException ee) { | ||
| 877 | throw new AWTError("Toolkit not found: " + nm); | ||
| 878 | } | ||
| 879 | } | ||
| 880 | } | ||
| 881 | if (cls != null) { | ||
| 882 | toolkit = (Toolkit)cls.newInstance(); | ||
| 883 | if (GraphicsEnvironment.isHeadless()) { | ||
| 884 | toolkit = new HeadlessToolkit(toolkit); | ||
| 885 | } | ||
| 886 | } | ||
| 887 | } catch (InstantiationException e) { | ||
| 888 | throw new AWTError("Could not instantiate Toolkit: " + nm); | ||
| 889 | } catch (IllegalAccessException e) { | ||
| 890 | throw new AWTError("Could not access Toolkit: " + nm); | ||
| 891 | } | ||
| 892 | return null; | ||
| 893 | } | ||
| 894 | }); | ||
| 895 | loadAssistiveTechnologies(); | ||
| 896 | } finally { | ||
| 897 | // Make sure to always re-enable the JIT. | ||
| 898 | java.lang.Compiler.enable(); | ||
| 899 | } | ||
| 900 | } | ||
| 901 | return toolkit; | ||
| 902 | } | ||
| 903 | |||
| 904 | /** | ||
| 905 | * Returns an image which gets pixel data from the specified file, | ||
| 906 | * whose format can be either GIF, JPEG or PNG. | ||
| 907 | * The underlying toolkit attempts to resolve multiple requests | ||
| 908 | * with the same filename to the same returned Image. | ||
| 909 | * <p> | ||
| 910 | * Since the mechanism required to facilitate this sharing of | ||
| 911 | * <code>Image</code> objects may continue to hold onto images | ||
| 912 | * that are no longer in use for an indefinite period of time, | ||
| 913 | * developers are encouraged to implement their own caching of | ||
| 914 | * images by using the {@link #createImage(java.lang.String) createImage} | ||
| 915 | * variant wherever available. | ||
| 916 | * If the image data contained in the specified file changes, | ||
| 917 | * the <code>Image</code> object returned from this method may | ||
| 918 | * still contain stale information which was loaded from the | ||
| 919 | * file after a prior call. | ||
| 920 | * Previously loaded image data can be manually discarded by | ||
| 921 | * calling the {@link Image#flush flush} method on the | ||
| 922 | * returned <code>Image</code>. | ||
| 923 | * <p> | ||
| 924 | * This method first checks if there is a security manager installed. | ||
| 925 | * If so, the method calls the security manager's | ||
| 926 | * <code>checkRead</code> method with the file specified to ensure | ||
| 927 | * that the access to the image is allowed. | ||
| 928 | * @param filename the name of a file containing pixel data | ||
| 929 | * in a recognized file format. | ||
| 930 | * @return an image which gets its pixel data from | ||
| 931 | * the specified file. | ||
| 932 | * @throws SecurityException if a security manager exists and its | ||
| 933 | * checkRead method doesn't allow the operation. | ||
| 934 | * @see #createImage(java.lang.String) | ||
| 935 | */ | ||
| 936 | public abstract Image getImage(String filename); | ||
| 937 | |||
| 938 | /** | ||
| 939 | * Returns an image which gets pixel data from the specified URL. | ||
| 940 | * The pixel data referenced by the specified URL must be in one | ||
| 941 | * of the following formats: GIF, JPEG or PNG. | ||
| 942 | * The underlying toolkit attempts to resolve multiple requests | ||
| 943 | * with the same URL to the same returned Image. | ||
| 944 | * <p> | ||
| 945 | * Since the mechanism required to facilitate this sharing of | ||
| 946 | * <code>Image</code> objects may continue to hold onto images | ||
| 947 | * that are no longer in use for an indefinite period of time, | ||
| 948 | * developers are encouraged to implement their own caching of | ||
| 949 | * images by using the {@link #createImage(java.net.URL) createImage} | ||
| 950 | * variant wherever available. | ||
| 951 | * If the image data stored at the specified URL changes, | ||
| 952 | * the <code>Image</code> object returned from this method may | ||
| 953 | * still contain stale information which was fetched from the | ||
| 954 | * URL after a prior call. | ||
| 955 | * Previously loaded image data can be manually discarded by | ||
| 956 | * calling the {@link Image#flush flush} method on the | ||
| 957 | * returned <code>Image</code>. | ||
| 958 | * <p> | ||
| 959 | * This method first checks if there is a security manager installed. | ||
| 960 | * If so, the method calls the security manager's | ||
| 961 | * <code>checkPermission</code> method with the | ||
| 962 | * url.openConnection().getPermission() permission to ensure | ||
| 963 | * that the access to the image is allowed. For compatibility | ||
| 964 | * with pre-1.2 security managers, if the access is denied with | ||
| 965 | * <code>FilePermission</code> or <code>SocketPermission</code>, | ||
| 966 | * the method throws the <code>SecurityException</code> | ||
| 967 | * if the corresponding 1.1-style SecurityManager.checkXXX method | ||
| 968 | * also denies permission. | ||
| 969 | * @param url the URL to use in fetching the pixel data. | ||
| 970 | * @return an image which gets its pixel data from | ||
| 971 | * the specified URL. | ||
| 972 | * @throws SecurityException if a security manager exists and its | ||
| 973 | * checkPermission method doesn't allow | ||
| 974 | * the operation. | ||
| 975 | * @see #createImage(java.net.URL) | ||
| 976 | */ | ||
| 977 | public abstract Image getImage(URL url); | ||
| 978 | |||
| 979 | /** | ||
| 980 | * Returns an image which gets pixel data from the specified file. | ||
| 981 | * The returned Image is a new object which will not be shared | ||
| 982 | * with any other caller of this method or its getImage variant. | ||
| 983 | * <p> | ||
| 984 | * This method first checks if there is a security manager installed. | ||
| 985 | * If so, the method calls the security manager's | ||
| 986 | * <code>checkRead</code> method with the specified file to ensure | ||
| 987 | * that the image creation is allowed. | ||
| 988 | * @param filename the name of a file containing pixel data | ||
| 989 | * in a recognized file format. | ||
| 990 | * @return an image which gets its pixel data from | ||
| 991 | * the specified file. | ||
| 992 | * @throws SecurityException if a security manager exists and its | ||
| 993 | * checkRead method doesn't allow the operation. | ||
| 994 | * @see #getImage(java.lang.String) | ||
| 995 | */ | ||
| 996 | public abstract Image createImage(String filename); | ||
| 997 | |||
| 998 | /** | ||
| 999 | * Returns an image which gets pixel data from the specified URL. | ||
| 1000 | * The returned Image is a new object which will not be shared | ||
| 1001 | * with any other caller of this method or its getImage variant. | ||
| 1002 | * <p> | ||
| 1003 | * This method first checks if there is a security manager installed. | ||
| 1004 | * If so, the method calls the security manager's | ||
| 1005 | * <code>checkPermission</code> method with the | ||
| 1006 | * url.openConnection().getPermission() permission to ensure | ||
| 1007 | * that the image creation is allowed. For compatibility | ||
| 1008 | * with pre-1.2 security managers, if the access is denied with | ||
| 1009 | * <code>FilePermission</code> or <code>SocketPermission</code>, | ||
| 1010 | * the method throws <code>SecurityException</code> | ||
| 1011 | * if the corresponding 1.1-style SecurityManager.checkXXX method | ||
| 1012 | * also denies permission. | ||
| 1013 | * @param url the URL to use in fetching the pixel data. | ||
| 1014 | * @return an image which gets its pixel data from | ||
| 1015 | * the specified URL. | ||
| 1016 | * @throws SecurityException if a security manager exists and its | ||
| 1017 | * checkPermission method doesn't allow | ||
| 1018 | * the operation. | ||
| 1019 | * @see #getImage(java.net.URL) | ||
| 1020 | */ | ||
| 1021 | public abstract Image createImage(URL url); | ||
| 1022 | |||
| 1023 | /** | ||
| 1024 | * Prepares an image for rendering. | ||
| 1025 | * <p> | ||
| 1026 | * If the values of the width and height arguments are both | ||
| 1027 | * <code>-1</code>, this method prepares the image for rendering | ||
| 1028 | * on the default screen; otherwise, this method prepares an image | ||
| 1029 | * for rendering on the default screen at the specified width and height. | ||
| 1030 | * <p> | ||
| 1031 | * The image data is downloaded asynchronously in another thread, | ||
| 1032 | * and an appropriately scaled screen representation of the image is | ||
| 1033 | * generated. | ||
| 1034 | * <p> | ||
| 1035 | * This method is called by components <code>prepareImage</code> | ||
| 1036 | * methods. | ||
| 1037 | * <p> | ||
| 1038 | * Information on the flags returned by this method can be found | ||
| 1039 | * with the definition of the <code>ImageObserver</code> interface. | ||
| 1040 | |||
| 1041 | * @param image the image for which to prepare a | ||
| 1042 | * screen representation. | ||
| 1043 | * @param width the width of the desired screen | ||
| 1044 | * representation, or <code>-1</code>. | ||
| 1045 | * @param height the height of the desired screen | ||
| 1046 | * representation, or <code>-1</code>. | ||
| 1047 | * @param observer the <code>ImageObserver</code> | ||
| 1048 | * object to be notified as the | ||
| 1049 | * image is being prepared. | ||
| 1050 | * @return <code>true</code> if the image has already been | ||
| 1051 | * fully prepared; <code>false</code> otherwise. | ||
| 1052 | * @see java.awt.Component#prepareImage(java.awt.Image, | ||
| 1053 | * java.awt.image.ImageObserver) | ||
| 1054 | * @see java.awt.Component#prepareImage(java.awt.Image, | ||
| 1055 | * int, int, java.awt.image.ImageObserver) | ||
| 1056 | * @see java.awt.image.ImageObserver | ||
| 1057 | */ | ||
| 1058 | public abstract boolean prepareImage(Image image, int width, int height, | ||
| 1059 | ImageObserver observer); | ||
| 1060 | |||
| 1061 | /** | ||
| 1062 | * Indicates the construction status of a specified image that is | ||
| 1063 | * being prepared for display. | ||
| 1064 | * <p> | ||
| 1065 | * If the values of the width and height arguments are both | ||
| 1066 | * <code>-1</code>, this method returns the construction status of | ||
| 1067 | * a screen representation of the specified image in this toolkit. | ||
| 1068 | * Otherwise, this method returns the construction status of a | ||
| 1069 | * scaled representation of the image at the specified width | ||
| 1070 | * and height. | ||
| 1071 | * <p> | ||
| 1072 | * This method does not cause the image to begin loading. | ||
| 1073 | * An application must call <code>prepareImage</code> to force | ||
| 1074 | * the loading of an image. | ||
| 1075 | * <p> | ||
| 1076 | * This method is called by the component's <code>checkImage</code> | ||
| 1077 | * methods. | ||
| 1078 | * <p> | ||
| 1079 | * Information on the flags returned by this method can be found | ||
| 1080 | * with the definition of the <code>ImageObserver</code> interface. | ||
| 1081 | * @param image the image whose status is being checked. | ||
| 1082 | * @param width the width of the scaled version whose status is | ||
| 1083 | * being checked, or <code>-1</code>. | ||
| 1084 | * @param height the height of the scaled version whose status | ||
| 1085 | * is being checked, or <code>-1</code>. | ||
| 1086 | * @param observer the <code>ImageObserver</code> object to be | ||
| 1087 | * notified as the image is being prepared. | ||
| 1088 | * @return the bitwise inclusive <strong>OR</strong> of the | ||
| 1089 | * <code>ImageObserver</code> flags for the | ||
| 1090 | * image data that is currently available. | ||
| 1091 | * @see java.awt.Toolkit#prepareImage(java.awt.Image, | ||
| 1092 | * int, int, java.awt.image.ImageObserver) | ||
| 1093 | * @see java.awt.Component#checkImage(java.awt.Image, | ||
| 1094 | * java.awt.image.ImageObserver) | ||
| 1095 | * @see java.awt.Component#checkImage(java.awt.Image, | ||
| 1096 | * int, int, java.awt.image.ImageObserver) | ||
| 1097 | * @see java.awt.image.ImageObserver | ||
| 1098 | */ | ||
| 1099 | public abstract int checkImage(Image image, int width, int height, | ||
| 1100 | ImageObserver observer); | ||
| 1101 | |||
| 1102 | /** | ||
| 1103 | * Creates an image with the specified image producer. | ||
| 1104 | * @param producer the image producer to be used. | ||
| 1105 | * @return an image with the specified image producer. | ||
| 1106 | * @see java.awt.Image | ||
| 1107 | * @see java.awt.image.ImageProducer | ||
| 1108 | * @see java.awt.Component#createImage(java.awt.image.ImageProducer) | ||
| 1109 | */ | ||
| 1110 | public abstract Image createImage(ImageProducer producer); | ||
| 1111 | |||
| 1112 | /** | ||
| 1113 | * Creates an image which decodes the image stored in the specified | ||
| 1114 | * byte array. | ||
| 1115 | * <p> | ||
| 1116 | * The data must be in some image format, such as GIF or JPEG, | ||
| 1117 | * that is supported by this toolkit. | ||
| 1118 | * @param imagedata an array of bytes, representing | ||
| 1119 | * image data in a supported image format. | ||
| 1120 | * @return an image. | ||
| 1121 | * @since JDK1.1 | ||
| 1122 | */ | ||
| 1123 | public Image createImage(byte[] imagedata) { | ||
| 1124 | return createImage(imagedata, 0, imagedata.length); | ||
| 1125 | } | ||
| 1126 | |||
| 1127 | /** | ||
| 1128 | * Creates an image which decodes the image stored in the specified | ||
| 1129 | * byte array, and at the specified offset and length. | ||
| 1130 | * The data must be in some image format, such as GIF or JPEG, | ||
| 1131 | * that is supported by this toolkit. | ||
| 1132 | * @param imagedata an array of bytes, representing | ||
| 1133 | * image data in a supported image format. | ||
| 1134 | * @param imageoffset the offset of the beginning | ||
| 1135 | * of the data in the array. | ||
| 1136 | * @param imagelength the length of the data in the array. | ||
| 1137 | * @return an image. | ||
| 1138 | * @since JDK1.1 | ||
| 1139 | */ | ||
| 1140 | public abstract Image createImage(byte[] imagedata, | ||
| 1141 | int imageoffset, | ||
| 1142 | int imagelength); | ||
| 1143 | |||
| 1144 | /** | ||
| 1145 | * Gets a <code>PrintJob</code> object which is the result of initiating | ||
| 1146 | * a print operation on the toolkit's platform. | ||
| 1147 | * <p> | ||
| 1148 | * Each actual implementation of this method should first check if there | ||
| 1149 | * is a security manager installed. If there is, the method should call | ||
| 1150 | * the security manager's <code>checkPrintJobAccess</code> method to | ||
| 1151 | * ensure initiation of a print operation is allowed. If the default | ||
| 1152 | * implementation of <code>checkPrintJobAccess</code> is used (that is, | ||
| 1153 | * that method is not overriden), then this results in a call to the | ||
| 1154 | * security manager's <code>checkPermission</code> method with a <code> | ||
| 1155 | * RuntimePermission("queuePrintJob")</code> permission. | ||
| 1156 | * | ||
| 1157 | * @param frame the parent of the print dialog. May not be null. | ||
| 1158 | * @param jobtitle the title of the PrintJob. A null title is equivalent | ||
| 1159 | * to "". | ||
| 1160 | * @param props a Properties object containing zero or more properties. | ||
| 1161 | * Properties are not standardized and are not consistent across | ||
| 1162 | * implementations. Because of this, PrintJobs which require job | ||
| 1163 | * and page control should use the version of this function which | ||
| 1164 | * takes JobAttributes and PageAttributes objects. This object | ||
| 1165 | * may be updated to reflect the user's job choices on exit. May | ||
| 1166 | * be null. | ||
| 1167 | * @return a <code>PrintJob</code> object, or <code>null</code> if the | ||
| 1168 | * user cancelled the print job. | ||
| 1169 | * @throws NullPointerException if frame is null | ||
| 1170 | * @throws SecurityException if this thread is not allowed to initiate a | ||
| 1171 | * print job request | ||
| 1172 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1173 | * @see java.awt.PrintJob | ||
| 1174 | * @see java.lang.RuntimePermission | ||
| 1175 | * @since JDK1.1 | ||
| 1176 | */ | ||
| 1177 | public abstract PrintJob getPrintJob(Frame frame, String jobtitle, | ||
| 1178 | Properties props); | ||
| 1179 | |||
| 1180 | /** | ||
| 1181 | * Gets a <code>PrintJob</code> object which is the result of initiating | ||
| 1182 | * a print operation on the toolkit's platform. | ||
| 1183 | * <p> | ||
| 1184 | * Each actual implementation of this method should first check if there | ||
| 1185 | * is a security manager installed. If there is, the method should call | ||
| 1186 | * the security manager's <code>checkPrintJobAccess</code> method to | ||
| 1187 | * ensure initiation of a print operation is allowed. If the default | ||
| 1188 | * implementation of <code>checkPrintJobAccess</code> is used (that is, | ||
| 1189 | * that method is not overriden), then this results in a call to the | ||
| 1190 | * security manager's <code>checkPermission</code> method with a <code> | ||
| 1191 | * RuntimePermission("queuePrintJob")</code> permission. | ||
| 1192 | * | ||
| 1193 | * @param frame the parent of the print dialog. May not be null. | ||
| 1194 | * @param jobtitle the title of the PrintJob. A null title is equivalent | ||
| 1195 | * to "". | ||
| 1196 | * @param jobAttributes a set of job attributes which will control the | ||
| 1197 | * PrintJob. The attributes will be updated to reflect the user's | ||
| 1198 | * choices as outlined in the JobAttributes documentation. May be | ||
| 1199 | * null. | ||
| 1200 | * @param pageAttributes a set of page attributes which will control the | ||
| 1201 | * PrintJob. The attributes will be applied to every page in the | ||
| 1202 | * job. The attributes will be updated to reflect the user's | ||
| 1203 | * choices as outlined in the PageAttributes documentation. May be | ||
| 1204 | * null. | ||
| 1205 | * @return a <code>PrintJob</code> object, or <code>null</code> if the | ||
| 1206 | * user cancelled the print job. | ||
| 1207 | * @throws NullPointerException if frame is null | ||
| 1208 | * @throws IllegalArgumentException if pageAttributes specifies differing | ||
| 1209 | * cross feed and feed resolutions. Also if this thread has | ||
| 1210 | * access to the file system and jobAttributes specifies | ||
| 1211 | * print to file, and the specified destination file exists but | ||
| 1212 | * is a directory rather than a regular file, does not exist but | ||
| 1213 | * cannot be created, or cannot be opened for any other reason. | ||
| 1214 | * However in the case of print to file, if a dialog is also | ||
| 1215 | * requested to be displayed then the user will be given an | ||
| 1216 | * opportunity to select a file and proceed with printing. | ||
| 1217 | * The dialog will ensure that the selected output file | ||
| 1218 | * is valid before returning from this method. | ||
| 1219 | * @throws SecurityException if this thread is not allowed to initiate a | ||
| 1220 | * print job request, or if jobAttributes specifies print to file, | ||
| 1221 | * and this thread is not allowed to access the file system | ||
| 1222 | * @see java.awt.PrintJob | ||
| 1223 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1224 | * @see java.lang.RuntimePermission | ||
| 1225 | * @see java.awt.JobAttributes | ||
| 1226 | * @see java.awt.PageAttributes | ||
| 1227 | * @since 1.3 | ||
| 1228 | */ | ||
| 1229 | public PrintJob getPrintJob(Frame frame, String jobtitle, | ||
| 1230 | JobAttributes jobAttributes, | ||
| 1231 | PageAttributes pageAttributes) { | ||
| 1232 | // Override to add printing support with new job/page control classes | ||
| 1233 | |||
| 1234 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 1235 | return Toolkit.getDefaultToolkit().getPrintJob(frame, jobtitle, | ||
| 1236 | jobAttributes, | ||
| 1237 | pageAttributes); | ||
| 1238 | } else { | ||
| 1239 | return getPrintJob(frame, jobtitle, null); | ||
| 1240 | } | ||
| 1241 | } | ||
| 1242 | |||
| 1243 | /** | ||
| 1244 | * Emits an audio beep. | ||
| 1245 | * @since JDK1.1 | ||
| 1246 | */ | ||
| 1247 | public abstract void beep(); | ||
| 1248 | |||
| 1249 | /** | ||
| 1250 | * Gets the singleton instance of the system Clipboard which interfaces | ||
| 1251 | * with clipboard facilities provided by the native platform. This | ||
| 1252 | * clipboard enables data transfer between Java programs and native | ||
| 1253 | * applications which use native clipboard facilities. | ||
| 1254 | * <p> | ||
| 1255 | * In addition to any and all formats specified in the flavormap.properties | ||
| 1256 | * file, or other file specified by the <code>AWT.DnD.flavorMapFileURL | ||
| 1257 | * </code> Toolkit property, text returned by the system Clipboard's <code> | ||
| 1258 | * getTransferData()</code> method is available in the following flavors: | ||
| 1259 | * <ul> | ||
| 1260 | * <li>DataFlavor.stringFlavor</li> | ||
| 1261 | * <li>DataFlavor.plainTextFlavor (<b>deprecated</b>)</li> | ||
| 1262 | * </ul> | ||
| 1263 | * As with <code>java.awt.datatransfer.StringSelection</code>, if the | ||
| 1264 | * requested flavor is <code>DataFlavor.plainTextFlavor</code>, or an | ||
| 1265 | * equivalent flavor, a Reader is returned. <b>Note:</b> The behavior of | ||
| 1266 | * the system Clipboard's <code>getTransferData()</code> method for <code> | ||
| 1267 | * DataFlavor.plainTextFlavor</code>, and equivalent DataFlavors, is | ||
| 1268 | * inconsistent with the definition of <code>DataFlavor.plainTextFlavor | ||
| 1269 | * </code>. Because of this, support for <code> | ||
| 1270 | * DataFlavor.plainTextFlavor</code>, and equivalent flavors, is | ||
| 1271 | * <b>deprecated</b>. | ||
| 1272 | * <p> | ||
| 1273 | * Each actual implementation of this method should first check if there | ||
| 1274 | * is a security manager installed. If there is, the method should call | ||
| 1275 | * the security manager's <code>checkSystemClipboardAccess</code> method | ||
| 1276 | * to ensure it's ok to to access the system clipboard. If the default | ||
| 1277 | * implementation of <code>checkSystemClipboardAccess</code> is used (that | ||
| 1278 | * is, that method is not overriden), then this results in a call to the | ||
| 1279 | * security manager's <code>checkPermission</code> method with an <code> | ||
| 1280 | * AWTPermission("accessClipboard")</code> permission. | ||
| 1281 | * | ||
| 1282 | * @return the system Clipboard | ||
| 1283 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 1284 | * returns true | ||
| 1285 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1286 | * @see java.awt.datatransfer.Clipboard | ||
| 1287 | * @see java.awt.datatransfer.StringSelection | ||
| 1288 | * @see java.awt.datatransfer.DataFlavor#stringFlavor | ||
| 1289 | * @see java.awt.datatransfer.DataFlavor#plainTextFlavor | ||
| 1290 | * @see java.io.Reader | ||
| 1291 | * @see java.awt.AWTPermission | ||
| 1292 | * @since JDK1.1 | ||
| 1293 | */ | ||
| 1294 | public abstract Clipboard getSystemClipboard() | ||
| 1295 | throws HeadlessException; | ||
| 1296 | |||
| 1297 | /** | ||
| 1298 | * Gets the singleton instance of the system selection as a | ||
| 1299 | * <code>Clipboard</code> object. This allows an application to read and | ||
| 1300 | * modify the current, system-wide selection. | ||
| 1301 | * <p> | ||
| 1302 | * An application is responsible for updating the system selection whenever | ||
| 1303 | * the user selects text, using either the mouse or the keyboard. | ||
| 1304 | * Typically, this is implemented by installing a | ||
| 1305 | * <code>FocusListener</code> on all <code>Component</code>s which support | ||
| 1306 | * text selection, and, between <code>FOCUS_GAINED</code> and | ||
| 1307 | * <code>FOCUS_LOST</code> events delivered to that <code>Component</code>, | ||
| 1308 | * updating the system selection <code>Clipboard</code> when the selection | ||
| 1309 | * changes inside the <code>Component</code>. Properly updating the system | ||
| 1310 | * selection ensures that a Java application will interact correctly with | ||
| 1311 | * native applications and other Java applications running simultaneously | ||
| 1312 | * on the system. Note that <code>java.awt.TextComponent</code> and | ||
| 1313 | * <code>javax.swing.text.JTextComponent</code> already adhere to this | ||
| 1314 | * policy. When using these classes, and their subclasses, developers need | ||
| 1315 | * not write any additional code. | ||
| 1316 | * <p> | ||
| 1317 | * Some platforms do not support a system selection <code>Clipboard</code>. | ||
| 1318 | * On those platforms, this method will return <code>null</code>. In such a | ||
| 1319 | * case, an application is absolved from its responsibility to update the | ||
| 1320 | * system selection <code>Clipboard</code> as described above. | ||
| 1321 | * <p> | ||
| 1322 | * Each actual implementation of this method should first check if there | ||
| 1323 | * is a <code>SecurityManager</code> installed. If there is, the method | ||
| 1324 | * should call the <code>SecurityManager</code>'s | ||
| 1325 | * <code>checkSystemClipboardAccess</code> method to ensure that client | ||
| 1326 | * code has access the system selection. If the default implementation of | ||
| 1327 | * <code>checkSystemClipboardAccess</code> is used (that is, if the method | ||
| 1328 | * is not overridden), then this results in a call to the | ||
| 1329 | * <code>SecurityManager</code>'s <code>checkPermission</code> method with | ||
| 1330 | * an <code>AWTPermission("accessClipboard")</code> permission. | ||
| 1331 | * | ||
| 1332 | * @return the system selection as a <code>Clipboard</code>, or | ||
| 1333 | * <code>null</code> if the native platform does not support a | ||
| 1334 | * system selection <code>Clipboard</code> | ||
| 1335 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 1336 | * returns true | ||
| 1337 | * | ||
| 1338 | * @see java.awt.datatransfer.Clipboard | ||
| 1339 | * @see java.awt.event.FocusListener | ||
| 1340 | * @see java.awt.event.FocusEvent#FOCUS_GAINED | ||
| 1341 | * @see java.awt.event.FocusEvent#FOCUS_LOST | ||
| 1342 | * @see TextComponent | ||
| 1343 | * @see javax.swing.text.JTextComponent | ||
| 1344 | * @see AWTPermission | ||
| 1345 | * @see GraphicsEnvironment#isHeadless | ||
| 1346 | * @since 1.4 | ||
| 1347 | */ | ||
| 1348 | public Clipboard getSystemSelection() throws HeadlessException { | ||
| 1349 | GraphicsEnvironment.checkHeadless(); | ||
| 1350 | |||
| 1351 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 1352 | return Toolkit.getDefaultToolkit().getSystemSelection(); | ||
| 1353 | } else { | ||
| 1354 | GraphicsEnvironment.checkHeadless(); | ||
| 1355 | return null; | ||
| 1356 | } | ||
| 1357 | } | ||
| 1358 | |||
| 1359 | /** | ||
| 1360 | * Determines which modifier key is the appropriate accelerator | ||
| 1361 | * key for menu shortcuts. | ||
| 1362 | * <p> | ||
| 1363 | * Menu shortcuts, which are embodied in the | ||
| 1364 | * <code>MenuShortcut</code> class, are handled by the | ||
| 1365 | * <code>MenuBar</code> class. | ||
| 1366 | * <p> | ||
| 1367 | * By default, this method returns <code>Event.CTRL_MASK</code>. | ||
| 1368 | * Toolkit implementations should override this method if the | ||
| 1369 | * <b>Control</b> key isn't the correct key for accelerators. | ||
| 1370 | * @return the modifier mask on the <code>Event</code> class | ||
| 1371 | * that is used for menu shortcuts on this toolkit. | ||
| 1372 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 1373 | * returns true | ||
| 1374 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1375 | * @see java.awt.MenuBar | ||
| 1376 | * @see java.awt.MenuShortcut | ||
| 1377 | * @since JDK1.1 | ||
| 1378 | */ | ||
| 1379 | public int getMenuShortcutKeyMask() throws HeadlessException { | ||
| 1380 | GraphicsEnvironment.checkHeadless(); | ||
| 1381 | |||
| 1382 | return Event.CTRL_MASK; | ||
| 1383 | } | ||
| 1384 | |||
| 1385 | /** | ||
| 1386 | * Returns whether the given locking key on the keyboard is currently in | ||
| 1387 | * its "on" state. | ||
| 1388 | * Valid key codes are | ||
| 1389 | * {@link java.awt.event.KeyEvent#VK_CAPS_LOCK VK_CAPS_LOCK}, | ||
| 1390 | * {@link java.awt.event.KeyEvent#VK_NUM_LOCK VK_NUM_LOCK}, | ||
| 1391 | * {@link java.awt.event.KeyEvent#VK_SCROLL_LOCK VK_SCROLL_LOCK}, and | ||
| 1392 | * {@link java.awt.event.KeyEvent#VK_KANA_LOCK VK_KANA_LOCK}. | ||
| 1393 | * | ||
| 1394 | * @exception java.lang.IllegalArgumentException if <code>keyCode</code> | ||
| 1395 | * is not one of the valid key codes | ||
| 1396 | * @exception java.lang.UnsupportedOperationException if the host system doesn't | ||
| 1397 | * allow getting the state of this key programmatically, or if the keyboard | ||
| 1398 | * doesn't have this key | ||
| 1399 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 1400 | * returns true | ||
| 1401 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1402 | * @since 1.3 | ||
| 1403 | */ | ||
| 1404 | public boolean getLockingKeyState(int keyCode) | ||
| 1405 | throws UnsupportedOperationException | ||
| 1406 | { | ||
| 1407 | GraphicsEnvironment.checkHeadless(); | ||
| 1408 | |||
| 1409 | if (! (keyCode == KeyEvent.VK_CAPS_LOCK || keyCode == KeyEvent.VK_NUM_LOCK || | ||
| 1410 | keyCode == KeyEvent.VK_SCROLL_LOCK || keyCode == KeyEvent.VK_KANA_LOCK)) { | ||
| 1411 | throw new IllegalArgumentException("invalid key for Toolkit.getLockingKeyState"); | ||
| 1412 | } | ||
| 1413 | throw new UnsupportedOperationException("Toolkit.getLockingKeyState"); | ||
| 1414 | } | ||
| 1415 | |||
| 1416 | /** | ||
| 1417 | * Sets the state of the given locking key on the keyboard. | ||
| 1418 | * Valid key codes are | ||
| 1419 | * {@link java.awt.event.KeyEvent#VK_CAPS_LOCK VK_CAPS_LOCK}, | ||
| 1420 | * {@link java.awt.event.KeyEvent#VK_NUM_LOCK VK_NUM_LOCK}, | ||
| 1421 | * {@link java.awt.event.KeyEvent#VK_SCROLL_LOCK VK_SCROLL_LOCK}, and | ||
| 1422 | * {@link java.awt.event.KeyEvent#VK_KANA_LOCK VK_KANA_LOCK}. | ||
| 1423 | * <p> | ||
| 1424 | * Depending on the platform, setting the state of a locking key may | ||
| 1425 | * involve event processing and therefore may not be immediately | ||
| 1426 | * observable through getLockingKeyState. | ||
| 1427 | * | ||
| 1428 | * @exception java.lang.IllegalArgumentException if <code>keyCode</code> | ||
| 1429 | * is not one of the valid key codes | ||
| 1430 | * @exception java.lang.UnsupportedOperationException if the host system doesn't | ||
| 1431 | * allow setting the state of this key programmatically, or if the keyboard | ||
| 1432 | * doesn't have this key | ||
| 1433 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 1434 | * returns true | ||
| 1435 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1436 | * @since 1.3 | ||
| 1437 | */ | ||
| 1438 | public void setLockingKeyState(int keyCode, boolean on) | ||
| 1439 | throws UnsupportedOperationException | ||
| 1440 | { | ||
| 1441 | GraphicsEnvironment.checkHeadless(); | ||
| 1442 | |||
| 1443 | if (! (keyCode == KeyEvent.VK_CAPS_LOCK || keyCode == KeyEvent.VK_NUM_LOCK || | ||
| 1444 | keyCode == KeyEvent.VK_SCROLL_LOCK || keyCode == KeyEvent.VK_KANA_LOCK)) { | ||
| 1445 | throw new IllegalArgumentException("invalid key for Toolkit.setLockingKeyState"); | ||
| 1446 | } | ||
| 1447 | throw new UnsupportedOperationException("Toolkit.setLockingKeyState"); | ||
| 1448 | } | ||
| 1449 | |||
| 1450 | /** | ||
| 1451 | * Give native peers the ability to query the native container | ||
| 1452 | * given a native component (eg the direct parent may be lightweight). | ||
| 1453 | */ | ||
| 1454 | protected static Container getNativeContainer(Component c) { | ||
| 1455 | return c.getNativeContainer(); | ||
| 1456 | } | ||
| 1457 | |||
| 1458 | /** | ||
| 1459 | * Creates a new custom cursor object. | ||
| 1460 | * If the image to display is invalid, the cursor will be hidden (made | ||
| 1461 | * completely transparent), and the hotspot will be set to (0, 0). | ||
| 1462 | * | ||
| 1463 | * <p>Note that multi-frame images are invalid and may cause this | ||
| 1464 | * method to hang. | ||
| 1465 | * | ||
| 1466 | * @param cursor the image to display when the cursor is actived | ||
| 1467 | * @param hotSpot the X and Y of the large cursor's hot spot; the | ||
| 1468 | * hotSpot values must be less than the Dimension returned by | ||
| 1469 | * <code>getBestCursorSize</code> | ||
| 1470 | * @param name a localized description of the cursor, for Java Accessibility use | ||
| 1471 | * @exception IndexOutOfBoundsException if the hotSpot values are outside | ||
| 1472 | * the bounds of the cursor | ||
| 1473 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 1474 | * returns true | ||
| 1475 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1476 | * @since 1.2 | ||
| 1477 | */ | ||
| 1478 | public Cursor createCustomCursor(Image cursor, Point hotSpot, String name) | ||
| 1479 | throws IndexOutOfBoundsException, HeadlessException | ||
| 1480 | { | ||
| 1481 | // Override to implement custom cursor support. | ||
| 1482 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 1483 | return Toolkit.getDefaultToolkit(). | ||
| 1484 | createCustomCursor(cursor, hotSpot, name); | ||
| 1485 | } else { | ||
| 1486 | return new Cursor(Cursor.DEFAULT_CURSOR); | ||
| 1487 | } | ||
| 1488 | } | ||
| 1489 | |||
| 1490 | /** | ||
| 1491 | * Returns the supported cursor dimension which is closest to the desired | ||
| 1492 | * sizes. Systems which only support a single cursor size will return that | ||
| 1493 | * size regardless of the desired sizes. Systems which don't support custom | ||
| 1494 | * cursors will return a dimension of 0, 0. <p> | ||
| 1495 | * Note: if an image is used whose dimensions don't match a supported size | ||
| 1496 | * (as returned by this method), the Toolkit implementation will attempt to | ||
| 1497 | * resize the image to a supported size. | ||
| 1498 | * Since converting low-resolution images is difficult, | ||
| 1499 | * no guarantees are made as to the quality of a cursor image which isn't a | ||
| 1500 | * supported size. It is therefore recommended that this method | ||
| 1501 | * be called and an appropriate image used so no image conversion is made. | ||
| 1502 | * | ||
| 1503 | * @param preferredWidth the preferred cursor width the component would like | ||
| 1504 | * to use. | ||
| 1505 | * @param preferredHeight the preferred cursor height the component would like | ||
| 1506 | * to use. | ||
| 1507 | * @return the closest matching supported cursor size, or a dimension of 0,0 if | ||
| 1508 | * the Toolkit implementation doesn't support custom cursors. | ||
| 1509 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 1510 | * returns true | ||
| 1511 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1512 | * @since 1.2 | ||
| 1513 | */ | ||
| 1514 | public Dimension getBestCursorSize(int preferredWidth, | ||
| 1515 | int preferredHeight) throws HeadlessException { | ||
| 1516 | GraphicsEnvironment.checkHeadless(); | ||
| 1517 | |||
| 1518 | // Override to implement custom cursor support. | ||
| 1519 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 1520 | return Toolkit.getDefaultToolkit(). | ||
| 1521 | getBestCursorSize(preferredWidth, preferredHeight); | ||
| 1522 | } else { | ||
| 1523 | return new Dimension(0, 0); | ||
| 1524 | } | ||
| 1525 | } | ||
| 1526 | |||
| 1527 | /** | ||
| 1528 | * Returns the maximum number of colors the Toolkit supports in a custom cursor | ||
| 1529 | * palette.<p> | ||
| 1530 | * Note: if an image is used which has more colors in its palette than | ||
| 1531 | * the supported maximum, the Toolkit implementation will attempt to flatten the | ||
| 1532 | * palette to the maximum. Since converting low-resolution images is difficult, | ||
| 1533 | * no guarantees are made as to the quality of a cursor image which has more | ||
| 1534 | * colors than the system supports. It is therefore recommended that this method | ||
| 1535 | * be called and an appropriate image used so no image conversion is made. | ||
| 1536 | * | ||
| 1537 | * @return the maximum number of colors, or zero if custom cursors are not | ||
| 1538 | * supported by this Toolkit implementation. | ||
| 1539 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() | ||
| 1540 | * returns true | ||
| 1541 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1542 | * @since 1.2 | ||
| 1543 | */ | ||
| 1544 | public int getMaximumCursorColors() throws HeadlessException { | ||
| 1545 | GraphicsEnvironment.checkHeadless(); | ||
| 1546 | |||
| 1547 | // Override to implement custom cursor support. | ||
| 1548 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 1549 | return Toolkit.getDefaultToolkit().getMaximumCursorColors(); | ||
| 1550 | } else { | ||
| 1551 | return 0; | ||
| 1552 | } | ||
| 1553 | } | ||
| 1554 | |||
| 1555 | /** | ||
| 1556 | * Returns whether Toolkit supports this state for | ||
| 1557 | * <code>Frame</code>s. This method tells whether the <em>UI | ||
| 1558 | * concept</em> of, say, maximization or iconification is | ||
| 1559 | * supported. It will always return false for "compound" states | ||
| 1560 | * like <code>Frame.ICONIFIED|Frame.MAXIMIZED_VERT</code>. | ||
| 1561 | * In other words, the rule of thumb is that only queries with a | ||
| 1562 | * single frame state constant as an argument are meaningful. | ||
| 1563 | * <p>Note that supporting a given concept is a platform- | ||
| 1564 | * dependent feature. Due to native limitations the Toolkit | ||
| 1565 | * object may report a particular state as supported, however at | ||
| 1566 | * the same time the Toolkit object will be unable to apply the | ||
| 1567 | * state to a given frame. This circumstance has two following | ||
| 1568 | * consequences: | ||
| 1569 | * <ul> | ||
| 1570 | * <li>Only the return value of {@code false} for the present | ||
| 1571 | * method actually indicates that the given state is not | ||
| 1572 | * supported. If the method returns {@code true} the given state | ||
| 1573 | * may still be unsupported and/or unavailable for a particular | ||
| 1574 | * frame. | ||
| 1575 | * <li>The developer should consider examining the value of the | ||
| 1576 | * {@link java.awt.event.WindowEvent#getNewState} method of the | ||
| 1577 | * {@code WindowEvent} received through the {@link | ||
| 1578 | * java.awt.event.WindowStateListener}, rather than assuming | ||
| 1579 | * that the state given to the {@code setExtendedState()} method | ||
| 1580 | * will be definitely applied. For more information see the | ||
| 1581 | * documentation for the {@link Frame#setExtendedState} method. | ||
| 1582 | * </ul> | ||
| 1583 | * | ||
| 1584 | * @param state one of named frame state constants. | ||
| 1585 | * @return <code>true</code> is this frame state is supported by | ||
| 1586 | * this Toolkit implementation, <code>false</code> otherwise. | ||
| 1587 | * @exception HeadlessException | ||
| 1588 | * if <code>GraphicsEnvironment.isHeadless()</code> | ||
| 1589 | * returns <code>true</code>. | ||
| 1590 | * @see java.awt.Window#addWindowStateListener | ||
| 1591 | * @since 1.4 | ||
| 1592 | */ | ||
| 1593 | public boolean isFrameStateSupported(int state) | ||
| 1594 | throws HeadlessException | ||
| 1595 | { | ||
| 1596 | GraphicsEnvironment.checkHeadless(); | ||
| 1597 | |||
| 1598 | if (this != Toolkit.getDefaultToolkit()) { | ||
| 1599 | return Toolkit.getDefaultToolkit(). | ||
| 1600 | isFrameStateSupported(state); | ||
| 1601 | } else { | ||
| 1602 | return (state == Frame.NORMAL); // others are not guaranteed | ||
| 1603 | } | ||
| 1604 | } | ||
| 1605 | |||
| 1606 | /** | ||
| 1607 | * Support for I18N: any visible strings should be stored in | ||
| 1608 | * sun.awt.resources.awt.properties. The ResourceBundle is stored | ||
| 1609 | * here, so that only one copy is maintained. | ||
| 1610 | */ | ||
| 1611 | private static ResourceBundle resources; | ||
| 1612 | |||
| 1613 | /** | ||
| 1614 | * Initialize JNI field and method ids | ||
| 1615 | */ | ||
| 1616 | private static native void initIDs(); | ||
| 1617 | |||
| 1618 | /** | ||
| 1619 | * WARNING: This is a temporary workaround for a problem in the | ||
| 1620 | * way the AWT loads native libraries. A number of classes in the | ||
| 1621 | * AWT package have a native method, initIDs(), which initializes | ||
| 1622 | * the JNI field and method ids used in the native portion of | ||
| 1623 | * their implementation. | ||
| 1624 | * | ||
| 1625 | * Since the use and storage of these ids is done by the | ||
| 1626 | * implementation libraries, the implementation of these method is | ||
| 1627 | * provided by the particular AWT implementations (for example, | ||
| 1628 | * "Toolkit"s/Peer), such as Motif, Microsoft Windows, or Tiny. The | ||
| 1629 | * problem is that this means that the native libraries must be | ||
| 1630 | * loaded by the java.* classes, which do not necessarily know the | ||
| 1631 | * names of the libraries to load. A better way of doing this | ||
| 1632 | * would be to provide a separate library which defines java.awt.* | ||
| 1633 | * initIDs, and exports the relevant symbols out to the | ||
| 1634 | * implementation libraries. | ||
| 1635 | * | ||
| 1636 | * For now, we know it's done by the implementation, and we assume | ||
| 1637 | * that the name of the library is "awt". -br. | ||
| 1638 | * | ||
| 1639 | * If you change loadLibraries(), please add the change to | ||
| 1640 | * java.awt.image.ColorModel.loadLibraries(). Unfortunately, | ||
| 1641 | * classes can be loaded in java.awt.image that depend on | ||
| 1642 | * libawt and there is no way to call Toolkit.loadLibraries() | ||
| 1643 | * directly. -hung | ||
| 1644 | */ | ||
| 1645 | private static boolean loaded = false; | ||
| 1646 | static void loadLibraries() { | ||
| 1647 | if (!loaded) { | ||
| 1648 | java.security.AccessController.doPrivileged( | ||
| 1649 | new sun.security.action.LoadLibraryAction("awt")); | ||
| 1650 | loaded = true; | ||
| 1651 | } | ||
| 1652 | } | ||
| 1653 | |||
| 1654 | static { | ||
| 1655 | java.security.AccessController.doPrivileged( | ||
| 1656 | new java.security.PrivilegedAction() { | ||
| 1657 | public Object run() { | ||
| 1658 | try { | ||
| 1659 | resources = | ||
| 1660 | ResourceBundle.getBundle("sun.awt.resources.awt", | ||
| 1661 | CoreResourceBundleControl.getRBControlInstance()); | ||
| 1662 | } catch (MissingResourceException e) { | ||
| 1663 | // No resource file; defaults will be used. | ||
| 1664 | } | ||
| 1665 | return null; | ||
| 1666 | } | ||
| 1667 | }); | ||
| 1668 | |||
| 1669 | // ensure that the proper libraries are loaded | ||
| 1670 | loadLibraries(); | ||
| 1671 | initAssistiveTechnologies(); | ||
| 1672 | if (!GraphicsEnvironment.isHeadless()) { | ||
| 1673 | initIDs(); | ||
| 1674 | } | ||
| 1675 | } | ||
| 1676 | |||
| 1677 | /** | ||
| 1678 | * Gets a property with the specified key and default. | ||
| 1679 | * This method returns defaultValue if the property is not found. | ||
| 1680 | */ | ||
| 1681 | public static String getProperty(String key, String defaultValue) { | ||
| 1682 | if (resources != null) { | ||
| 1683 | try { | ||
| 1684 | return resources.getString(key); | ||
| 1685 | } | ||
| 1686 | catch (MissingResourceException e) {} | ||
| 1687 | } | ||
| 1688 | |||
| 1689 | return defaultValue; | ||
| 1690 | } | ||
| 1691 | |||
| 1692 | /** | ||
| 1693 | * Get the application's or applet's EventQueue instance. | ||
| 1694 | * Depending on the Toolkit implementation, different EventQueues | ||
| 1695 | * may be returned for different applets. Applets should | ||
| 1696 | * therefore not assume that the EventQueue instance returned | ||
| 1697 | * by this method will be shared by other applets or the system. | ||
| 1698 | * | ||
| 1699 | * <p>First, if there is a security manager, its | ||
| 1700 | * <code>checkAwtEventQueueAccess</code> | ||
| 1701 | * method is called. | ||
| 1702 | * If the default implementation of <code>checkAwtEventQueueAccess</code> | ||
| 1703 | * is used (that is, that method is not overriden), then this results in | ||
| 1704 | * a call to the security manager's <code>checkPermission</code> method | ||
| 1705 | * with an <code>AWTPermission("accessEventQueue")</code> permission. | ||
| 1706 | * | ||
| 1707 | * @return the <code>EventQueue</code> object | ||
| 1708 | * @throws SecurityException | ||
| 1709 | * if a security manager exists and its <code>{@link | ||
| 1710 | * java.lang.SecurityManager#checkAwtEventQueueAccess}</code> | ||
| 1711 | * method denies access to the <code>EventQueue</code> | ||
| 1712 | * @see java.awt.AWTPermission | ||
| 1713 | */ | ||
| 1714 | public final EventQueue getSystemEventQueue() { | ||
| 1715 | SecurityManager security = System.getSecurityManager(); | ||
| 1716 | if (security != null) { | ||
| 1717 | security.checkAwtEventQueueAccess(); | ||
| 1718 | } | ||
| 1719 | return getSystemEventQueueImpl(); | ||
| 1720 | } | ||
| 1721 | |||
| 1722 | /** | ||
| 1723 | * Gets the application's or applet's <code>EventQueue</code> | ||
| 1724 | * instance, without checking access. For security reasons, | ||
| 1725 | * this can only be called from a <code>Toolkit</code> subclass. | ||
| 1726 | * @return the <code>EventQueue</code> object | ||
| 1727 | */ | ||
| 1728 | protected abstract EventQueue getSystemEventQueueImpl(); | ||
| 1729 | |||
| 1730 | /* Accessor method for use by AWT package routines. */ | ||
| 1731 | static EventQueue getEventQueue() { | ||
| 1732 | return getDefaultToolkit().getSystemEventQueueImpl(); | ||
| 1733 | } | ||
| 1734 | |||
| 1735 | /** | ||
| 1736 | * Creates the peer for a DragSourceContext. | ||
| 1737 | * Always throws InvalidDndOperationException if | ||
| 1738 | * GraphicsEnvironment.isHeadless() returns true. | ||
| 1739 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1740 | */ | ||
| 1741 | public abstract DragSourceContextPeer createDragSourceContextPeer(DragGestureEvent dge) throws InvalidDnDOperationException; | ||
| 1742 | |||
| 1743 | /** | ||
| 1744 | * Creates a concrete, platform dependent, subclass of the abstract | ||
| 1745 | * DragGestureRecognizer class requested, and associates it with the | ||
| 1746 | * DragSource, Component and DragGestureListener specified. | ||
| 1747 | * | ||
| 1748 | * subclasses should override this to provide their own implementation | ||
| 1749 | * | ||
| 1750 | * @param abstractRecognizerClass The abstract class of the required recognizer | ||
| 1751 | * @param ds The DragSource | ||
| 1752 | * @param c The Component target for the DragGestureRecognizer | ||
| 1753 | * @param srcActions The actions permitted for the gesture | ||
| 1754 | * @param dgl The DragGestureListener | ||
| 1755 | * | ||
| 1756 | * @return the new object or null. Always returns null if | ||
| 1757 | * GraphicsEnvironment.isHeadless() returns true. | ||
| 1758 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 1759 | */ | ||
| 1760 | public <T extends DragGestureRecognizer> T | ||
| 1761 | createDragGestureRecognizer(Class<T> abstractRecognizerClass, | ||
| 1762 | DragSource ds, Component c, int srcActions, | ||
| 1763 | DragGestureListener dgl) | ||
| 1764 | { | ||
| 1765 | return null; | ||
| 1766 | } | ||
| 1767 | |||
| 1768 | /** | ||
| 1769 | * Obtains a value for the specified desktop property. | ||
| 1770 | * | ||
| 1771 | * A desktop property is a uniquely named value for a resource that | ||
| 1772 | * is Toolkit global in nature. Usually it also is an abstract | ||
| 1773 | * representation for an underlying platform dependent desktop setting. | ||
| 1774 | * For more information on desktop properties supported by the AWT see | ||
| 1775 | * <a href="doc-files/DesktopProperties.html">AWT Desktop Properties</a>. | ||
| 1776 | */ | ||
| 1777 | public final synchronized Object getDesktopProperty(String propertyName) { | ||
| 1778 | // This is a workaround for headless toolkits. It would be | ||
| 1779 | // better to override this method but it is declared final. | ||
| 1780 | // "this instanceof" syntax defeats polymorphism. | ||
| 1781 | // --mm, 03/03/00 | ||
| 1782 | if (this instanceof HeadlessToolkit) { | ||
| 1783 | return ((HeadlessToolkit)this).getUnderlyingToolkit() | ||
| 1784 | .getDesktopProperty(propertyName); | ||
| 1785 | } | ||
| 1786 | |||
| 1787 | if (desktopProperties.isEmpty()) { | ||
| 1788 | initializeDesktopProperties(); | ||
| 1789 | } | ||
| 1790 | |||
| 1791 | Object value; | ||
| 1792 | |||
| 1793 | // This property should never be cached | ||
| 1794 | if (propertyName.equals("awt.dynamicLayoutSupported")) { | ||
| 1795 | value = lazilyLoadDesktopProperty(propertyName); | ||
| 1796 | return value; | ||
| 1797 | } | ||
| 1798 | |||
| 1799 | value = desktopProperties.get(propertyName); | ||
| 1800 | |||
| 1801 | if (value == null) { | ||
| 1802 | value = lazilyLoadDesktopProperty(propertyName); | ||
| 1803 | |||
| 1804 | if (value != null) { | ||
| 1805 | setDesktopProperty(propertyName, value); | ||
| 1806 | } | ||
| 1807 | } | ||
| 1808 | |||
| 1809 | /* for property "awt.font.desktophints" */ | ||
| 1810 | if (value instanceof RenderingHints) { | ||
| 1811 | value = ((RenderingHints)value).clone(); | ||
| 1812 | } | ||
| 1813 | |||
| 1814 | return value; | ||
| 1815 | } | ||
| 1816 | |||
| 1817 | /** | ||
| 1818 | * Sets the named desktop property to the specified value and fires a | ||
| 1819 | * property change event to notify any listeners that the value has changed. | ||
| 1820 | */ | ||
| 1821 | protected final void setDesktopProperty(String name, Object newValue) { | ||
| 1822 | // This is a workaround for headless toolkits. It would be | ||
| 1823 | // better to override this method but it is declared final. | ||
| 1824 | // "this instanceof" syntax defeats polymorphism. | ||
| 1825 | // --mm, 03/03/00 | ||
| 1826 | if (this instanceof HeadlessToolkit) { | ||
| 1827 | ((HeadlessToolkit)this).getUnderlyingToolkit() | ||
| 1828 | .setDesktopProperty(name, newValue); | ||
| 1829 | return; | ||
| 1830 | } | ||
| 1831 | Object oldValue; | ||
| 1832 | |||
| 1833 | synchronized (this) { | ||
| 1834 | oldValue = desktopProperties.get(name); | ||
| 1835 | desktopProperties.put(name, newValue); | ||
| 1836 | } | ||
| 1837 | |||
| 1838 | // Don't fire change event if old and new values are null. | ||
| 1839 | // It helps to avoid recursive resending of WM_THEMECHANGED | ||
| 1840 | if (oldValue != null || newValue != null) { | ||
| 1841 | desktopPropsSupport.firePropertyChange(name, oldValue, newValue); | ||
| 1842 | } | ||
| 1843 | } | ||
| 1844 | |||
| 1845 | /** | ||
| 1846 | * an opportunity to lazily evaluate desktop property values. | ||
| 1847 | */ | ||
| 1848 | protected Object lazilyLoadDesktopProperty(String name) { | ||
| 1849 | return null; | ||
| 1850 | } | ||
| 1851 | |||
| 1852 | /** | ||
| 1853 | * initializeDesktopProperties | ||
| 1854 | */ | ||
| 1855 | protected void initializeDesktopProperties() { | ||
| 1856 | } | ||
| 1857 | |||
| 1858 | /** | ||
| 1859 | * Adds the specified property change listener for the named desktop | ||
| 1860 | * property. When a {@link java.beans.PropertyChangeListenerProxy} object is added, | ||
| 1861 | * its property name is ignored, and the wrapped listener is added. | ||
| 1862 | * If {@code name} is {@code null} or {@code pcl} is {@code null}, | ||
| 1863 | * no exception is thrown and no action is performed. | ||
| 1864 | * | ||
| 1865 | * @param name The name of the property to listen for | ||
| 1866 | * @param pcl The property change listener | ||
| 1867 | * @see PropertyChangeSupport#addPropertyChangeListener(String, | ||
| 1868 | PropertyChangeListener) | ||
| 1869 | * @since 1.2 | ||
| 1870 | */ | ||
| 1871 | public void addPropertyChangeListener(String name, PropertyChangeListener pcl) { | ||
| 1872 | desktopPropsSupport.addPropertyChangeListener(name, pcl); | ||
| 1873 | } | ||
| 1874 | |||
| 1875 | /** | ||
| 1876 | * Removes the specified property change listener for the named | ||
| 1877 | * desktop property. When a {@link java.beans.PropertyChangeListenerProxy} object | ||
| 1878 | * is removed, its property name is ignored, and | ||
| 1879 | * the wrapped listener is removed. | ||
| 1880 | * If {@code name} is {@code null} or {@code pcl} is {@code null}, | ||
| 1881 | * no exception is thrown and no action is performed. | ||
| 1882 | * | ||
| 1883 | * @param name The name of the property to remove | ||
| 1884 | * @param pcl The property change listener | ||
| 1885 | * @see PropertyChangeSupport#removePropertyChangeListener(String, | ||
| 1886 | PropertyChangeListener) | ||
| 1887 | * @since 1.2 | ||
| 1888 | */ | ||
| 1889 | public void removePropertyChangeListener(String name, PropertyChangeListener pcl) { | ||
| 1890 | desktopPropsSupport.removePropertyChangeListener(name, pcl); | ||
| 1891 | } | ||
| 1892 | |||
| 1893 | /** | ||
| 1894 | * Returns an array of all the property change listeners | ||
| 1895 | * registered on this toolkit. The returned array | ||
| 1896 | * contains {@link java.beans.PropertyChangeListenerProxy} objects | ||
| 1897 | * that associate listeners with the names of desktop properties. | ||
| 1898 | * | ||
| 1899 | * @return all of this toolkit's {@link PropertyChangeListener} | ||
| 1900 | * objects wrapped in {@code java.beans.PropertyChangeListenerProxy} objects | ||
| 1901 | * or an empty array if no listeners are added | ||
| 1902 | * | ||
| 1903 | * @see PropertyChangeSupport#getPropertyChangeListeners() | ||
| 1904 | * @since 1.4 | ||
| 1905 | */ | ||
| 1906 | public PropertyChangeListener[] getPropertyChangeListeners() { | ||
| 1907 | return desktopPropsSupport.getPropertyChangeListeners(); | ||
| 1908 | } | ||
| 1909 | |||
| 1910 | /** | ||
| 1911 | * Returns an array of all property change listeners | ||
| 1912 | * associated with the specified name of a desktop property. | ||
| 1913 | * | ||
| 1914 | * @param propertyName the named property | ||
| 1915 | * @return all of the {@code PropertyChangeListener} objects | ||
| 1916 | * associated with the specified name of a desktop property | ||
| 1917 | * or an empty array if no such listeners are added | ||
| 1918 | * | ||
| 1919 | * @see PropertyChangeSupport#getPropertyChangeListeners(String) | ||
| 1920 | * @since 1.4 | ||
| 1921 | */ | ||
| 1922 | public PropertyChangeListener[] getPropertyChangeListeners(String propertyName) { | ||
| 1923 | return desktopPropsSupport.getPropertyChangeListeners(propertyName); | ||
| 1924 | } | ||
| 1925 | |||
| 1926 | protected final Map<String,Object> desktopProperties = | ||
| 1927 | new HashMap<String,Object>(); | ||
| 1928 | protected final PropertyChangeSupport desktopPropsSupport = | ||
| 1929 | Toolkit.createPropertyChangeSupport(this); | ||
| 1930 | |||
| 1931 | /** | ||
| 1932 | * Returns whether the always-on-top mode is supported by this toolkit. | ||
| 1933 | * To detect whether the always-on-top mode is supported for a | ||
| 1934 | * particular Window, use {@link Window#isAlwaysOnTopSupported}. | ||
| 1935 | * @return <code>true</code>, if current toolkit supports the always-on-top mode, | ||
| 1936 | * otherwise returns <code>false</code> | ||
| 1937 | * @see Window#isAlwaysOnTopSupported | ||
| 1938 | * @see Window#setAlwaysOnTop(boolean) | ||
| 1939 | * @since 1.6 | ||
| 1940 | */ | ||
| 1941 | public boolean isAlwaysOnTopSupported() { | ||
| 1942 | return true; | ||
| 1943 | } | ||
| 1944 | |||
| 1945 | /** | ||
| 1946 | * Returns whether the given modality type is supported by this toolkit. If | ||
| 1947 | * a dialog with unsupported modality type is created, then | ||
| 1948 | * <code>Dialog.ModalityType.MODELESS</code> is used instead. | ||
| 1949 | * | ||
| 1950 | * @param modalityType modality type to be checked for support by this toolkit | ||
| 1951 | * | ||
| 1952 | * @return <code>true</code>, if current toolkit supports given modality | ||
| 1953 | * type, <code>false</code> otherwise | ||
| 1954 | * | ||
| 1955 | * @see java.awt.Dialog.ModalityType | ||
| 1956 | * @see java.awt.Dialog#getModalityType | ||
| 1957 | * @see java.awt.Dialog#setModalityType | ||
| 1958 | * | ||
| 1959 | * @since 1.6 | ||
| 1960 | */ | ||
| 1961 | public abstract boolean isModalityTypeSupported(Dialog.ModalityType modalityType); | ||
| 1962 | |||
| 1963 | /** | ||
| 1964 | * Returns whether the given modal exclusion type is supported by this | ||
| 1965 | * toolkit. If an unsupported modal exclusion type property is set on a window, | ||
| 1966 | * then <code>Dialog.ModalExclusionType.NO_EXCLUDE</code> is used instead. | ||
| 1967 | * | ||
| 1968 | * @param modalExclusionType modal exclusion type to be checked for support by this toolkit | ||
| 1969 | * | ||
| 1970 | * @return <code>true</code>, if current toolkit supports given modal exclusion | ||
| 1971 | * type, <code>false</code> otherwise | ||
| 1972 | * | ||
| 1973 | * @see java.awt.Dialog.ModalExclusionType | ||
| 1974 | * @see java.awt.Window#getModalExclusionType | ||
| 1975 | * @see java.awt.Window#setModalExclusionType | ||
| 1976 | * | ||
| 1977 | * @since 1.6 | ||
| 1978 | */ | ||
| 1979 | public abstract boolean isModalExclusionTypeSupported(Dialog.ModalExclusionType modalExclusionType); | ||
| 1980 | |||
| 1981 | private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Toolkit"); | ||
| 1982 | |||
| 1983 | private static final int LONG_BITS = 64; | ||
| 1984 | private int[] calls = new int[LONG_BITS]; | ||
| 1985 | private static volatile long enabledOnToolkitMask; | ||
| 1986 | private AWTEventListener eventListener = null; | ||
| 1987 | private WeakHashMap listener2SelectiveListener = new WeakHashMap(); | ||
| 1988 | |||
| 1989 | /* | ||
| 1990 | * Extracts a "pure" AWTEventListener from a AWTEventListenerProxy, | ||
| 1991 | * if the listener is proxied. | ||
| 1992 | */ | ||
| 1993 | static private AWTEventListener deProxyAWTEventListener(AWTEventListener l) | ||
| 1994 | { | ||
| 1995 | AWTEventListener localL = l; | ||
| 1996 | |||
| 1997 | if (localL == null) { | ||
| 1998 | return null; | ||
| 1999 | } | ||
| 2000 | // if user passed in a AWTEventListenerProxy object, extract | ||
| 2001 | // the listener | ||
| 2002 | if (l instanceof AWTEventListenerProxy) { | ||
| 2003 | localL = ((AWTEventListenerProxy)l).getListener(); | ||
| 2004 | } | ||
| 2005 | return localL; | ||
| 2006 | } | ||
| 2007 | |||
| 2008 | /** | ||
| 2009 | * Adds an AWTEventListener to receive all AWTEvents dispatched | ||
| 2010 | * system-wide that conform to the given <code>eventMask</code>. | ||
| 2011 | * <p> | ||
| 2012 | * First, if there is a security manager, its <code>checkPermission</code> | ||
| 2013 | * method is called with an | ||
| 2014 | * <code>AWTPermission("listenToAllAWTEvents")</code> permission. | ||
| 2015 | * This may result in a SecurityException. | ||
| 2016 | * <p> | ||
| 2017 | * <code>eventMask</code> is a bitmask of event types to receive. | ||
| 2018 | * It is constructed by bitwise OR-ing together the event masks | ||
| 2019 | * defined in <code>AWTEvent</code>. | ||
| 2020 | * <p> | ||
| 2021 | * Note: event listener use is not recommended for normal | ||
| 2022 | * application use, but are intended solely to support special | ||
| 2023 | * purpose facilities including support for accessibility, | ||
| 2024 | * event record/playback, and diagnostic tracing. | ||
| 2025 | * | ||
| 2026 | * If listener is null, no exception is thrown and no action is performed. | ||
| 2027 | * | ||
| 2028 | * @param listener the event listener. | ||
| 2029 | * @param eventMask the bitmask of event types to receive | ||
| 2030 | * @throws SecurityException | ||
| 2031 | * if a security manager exists and its | ||
| 2032 | * <code>checkPermission</code> method doesn't allow the operation. | ||
| 2033 | * @see #removeAWTEventListener | ||
| 2034 | * @see #getAWTEventListeners | ||
| 2035 | * @see SecurityManager#checkPermission | ||
| 2036 | * @see java.awt.AWTEvent | ||
| 2037 | * @see java.awt.AWTPermission | ||
| 2038 | * @see java.awt.event.AWTEventListener | ||
| 2039 | * @see java.awt.event.AWTEventListenerProxy | ||
| 2040 | * @since 1.2 | ||
| 2041 | */ | ||
| 2042 | public void addAWTEventListener(AWTEventListener listener, long eventMask) { | ||
| 2043 | AWTEventListener localL = deProxyAWTEventListener(listener); | ||
| 2044 | |||
| 2045 | if (localL == null) { | ||
| 2046 | return; | ||
| 2047 | } | ||
| 2048 | SecurityManager security = System.getSecurityManager(); | ||
| 2049 | if (security != null) { | ||
| 2050 | security.checkPermission(SecurityConstants.AWT.ALL_AWT_EVENTS_PERMISSION); | ||
| 2051 | } | ||
| 2052 | synchronized (this) { | ||
| 2053 | SelectiveAWTEventListener selectiveListener = | ||
| 2054 | (SelectiveAWTEventListener)listener2SelectiveListener.get(localL); | ||
| 2055 | |||
| 2056 | if (selectiveListener == null) { | ||
| 2057 | // Create a new selectiveListener. | ||
| 2058 | selectiveListener = new SelectiveAWTEventListener(localL, | ||
| 2059 | eventMask); | ||
| 2060 | listener2SelectiveListener.put(localL, selectiveListener); | ||
| 2061 | eventListener = ToolkitEventMulticaster.add(eventListener, | ||
| 2062 | selectiveListener); | ||
| 2063 | } | ||
| 2064 | // OR the eventMask into the selectiveListener's event mask. | ||
| 2065 | selectiveListener.orEventMasks(eventMask); | ||
| 2066 | |||
| 2067 | enabledOnToolkitMask |= eventMask; | ||
| 2068 | |||
| 2069 | long mask = eventMask; | ||
| 2070 | for (int i=0; i<LONG_BITS; i++) { | ||
| 2071 | // If no bits are set, break out of loop. | ||
| 2072 | if (mask == 0) { | ||
| 2073 | break; | ||
| 2074 | } | ||
| 2075 | if ((mask & 1L) != 0) { // Always test bit 0. | ||
| 2076 | calls[i]++; | ||
| 2077 | } | ||
| 2078 | mask >>>= 1; // Right shift, fill with zeros on left. | ||
| 2079 | } | ||
| 2080 | } | ||
| 2081 | } | ||
| 2082 | |||
| 2083 | /** | ||
| 2084 | * Removes an AWTEventListener from receiving dispatched AWTEvents. | ||
| 2085 | * <p> | ||
| 2086 | * First, if there is a security manager, its <code>checkPermission</code> | ||
| 2087 | * method is called with an | ||
| 2088 | * <code>AWTPermission("listenToAllAWTEvents")</code> permission. | ||
| 2089 | * This may result in a SecurityException. | ||
| 2090 | * <p> | ||
| 2091 | * Note: event listener use is not recommended for normal | ||
| 2092 | * application use, but are intended solely to support special | ||
| 2093 | * purpose facilities including support for accessibility, | ||
| 2094 | * event record/playback, and diagnostic tracing. | ||
| 2095 | * | ||
| 2096 | * If listener is null, no exception is thrown and no action is performed. | ||
| 2097 | * | ||
| 2098 | * @param listener the event listener. | ||
| 2099 | * @throws SecurityException | ||
| 2100 | * if a security manager exists and its | ||
| 2101 | * <code>checkPermission</code> method doesn't allow the operation. | ||
| 2102 | * @see #addAWTEventListener | ||
| 2103 | * @see #getAWTEventListeners | ||
| 2104 | * @see SecurityManager#checkPermission | ||
| 2105 | * @see java.awt.AWTEvent | ||
| 2106 | * @see java.awt.AWTPermission | ||
| 2107 | * @see java.awt.event.AWTEventListener | ||
| 2108 | * @see java.awt.event.AWTEventListenerProxy | ||
| 2109 | * @since 1.2 | ||
| 2110 | */ | ||
| 2111 | public void removeAWTEventListener(AWTEventListener listener) { | ||
| 2112 | AWTEventListener localL = deProxyAWTEventListener(listener); | ||
| 2113 | |||
| 2114 | if (listener == null) { | ||
| 2115 | return; | ||
| 2116 | } | ||
| 2117 | SecurityManager security = System.getSecurityManager(); | ||
| 2118 | if (security != null) { | ||
| 2119 | security.checkPermission(SecurityConstants.AWT.ALL_AWT_EVENTS_PERMISSION); | ||
| 2120 | } | ||
| 2121 | |||
| 2122 | synchronized (this) { | ||
| 2123 | SelectiveAWTEventListener selectiveListener = | ||
| 2124 | (SelectiveAWTEventListener)listener2SelectiveListener.get(localL); | ||
| 2125 | |||
| 2126 | if (selectiveListener != null) { | ||
| 2127 | listener2SelectiveListener.remove(localL); | ||
| 2128 | int[] listenerCalls = selectiveListener.getCalls(); | ||
| 2129 | for (int i=0; i<LONG_BITS; i++) { | ||
| 2130 | calls[i] -= listenerCalls[i]; | ||
| 2131 | assert calls[i] >= 0: "Negative Listeners count"; | ||
| 2132 | |||
| 2133 | if (calls[i] == 0) { | ||
| 2134 | enabledOnToolkitMask &= ~(1L<<i); | ||
| 2135 | } | ||
| 2136 | } | ||
| 2137 | } | ||
| 2138 | eventListener = ToolkitEventMulticaster.remove(eventListener, | ||
| 2139 | (selectiveListener == null) ? localL : selectiveListener); | ||
| 2140 | } | ||
| 2141 | } | ||
| 2142 | |||
| 2143 | static boolean enabledOnToolkit(long eventMask) { | ||
| 2144 | return (enabledOnToolkitMask & eventMask) != 0; | ||
| 2145 | } | ||
| 2146 | |||
| 2147 | synchronized int countAWTEventListeners(long eventMask) { | ||
| 2148 | if (log.isLoggable(PlatformLogger.FINE)) { | ||
| 2149 | if (eventMask == 0) { | ||
| 2150 | log.fine("Assertion (eventMask != 0) failed"); | ||
| 2151 | } | ||
| 2152 | } | ||
| 2153 | |||
| 2154 | int ci = 0; | ||
| 2155 | for (; eventMask != 0; eventMask >>>= 1, ci++) { | ||
| 2156 | } | ||
| 2157 | ci--; | ||
| 2158 | return calls[ci]; | ||
| 2159 | } | ||
| 2160 | /** | ||
| 2161 | * Returns an array of all the <code>AWTEventListener</code>s | ||
| 2162 | * registered on this toolkit. | ||
| 2163 | * If there is a security manager, its {@code checkPermission} | ||
| 2164 | * method is called with an | ||
| 2165 | * {@code AWTPermission("listenToAllAWTEvents")} permission. | ||
| 2166 | * This may result in a SecurityException. | ||
| 2167 | * Listeners can be returned | ||
| 2168 | * within <code>AWTEventListenerProxy</code> objects, which also contain | ||
| 2169 | * the event mask for the given listener. | ||
| 2170 | * Note that listener objects | ||
| 2171 | * added multiple times appear only once in the returned array. | ||
| 2172 | * | ||
| 2173 | * @return all of the <code>AWTEventListener</code>s or an empty | ||
| 2174 | * array if no listeners are currently registered | ||
| 2175 | * @throws SecurityException | ||
| 2176 | * if a security manager exists and its | ||
| 2177 | * <code>checkPermission</code> method doesn't allow the operation. | ||
| 2178 | * @see #addAWTEventListener | ||
| 2179 | * @see #removeAWTEventListener | ||
| 2180 | * @see SecurityManager#checkPermission | ||
| 2181 | * @see java.awt.AWTEvent | ||
| 2182 | * @see java.awt.AWTPermission | ||
| 2183 | * @see java.awt.event.AWTEventListener | ||
| 2184 | * @see java.awt.event.AWTEventListenerProxy | ||
| 2185 | * @since 1.4 | ||
| 2186 | */ | ||
| 2187 | public AWTEventListener[] getAWTEventListeners() { | ||
| 2188 | SecurityManager security = System.getSecurityManager(); | ||
| 2189 | if (security != null) { | ||
| 2190 | security.checkPermission(SecurityConstants.AWT.ALL_AWT_EVENTS_PERMISSION); | ||
| 2191 | } | ||
| 2192 | synchronized (this) { | ||
| 2193 | EventListener[] la = ToolkitEventMulticaster.getListeners(eventListener,AWTEventListener.class); | ||
| 2194 | |||
| 2195 | AWTEventListener[] ret = new AWTEventListener[la.length]; | ||
| 2196 | for (int i = 0; i < la.length; i++) { | ||
| 2197 | SelectiveAWTEventListener sael = (SelectiveAWTEventListener)la[i]; | ||
| 2198 | AWTEventListener tempL = sael.getListener(); | ||
| 2199 | //assert tempL is not an AWTEventListenerProxy - we should | ||
| 2200 | // have weeded them all out | ||
| 2201 | // don't want to wrap a proxy inside a proxy | ||
| 2202 | ret[i] = new AWTEventListenerProxy(sael.getEventMask(), tempL); | ||
| 2203 | } | ||
| 2204 | return ret; | ||
| 2205 | } | ||
| 2206 | } | ||
| 2207 | |||
| 2208 | /** | ||
| 2209 | * Returns an array of all the <code>AWTEventListener</code>s | ||
| 2210 | * registered on this toolkit which listen to all of the event | ||
| 2211 | * types specified in the {@code eventMask} argument. | ||
| 2212 | * If there is a security manager, its {@code checkPermission} | ||
| 2213 | * method is called with an | ||
| 2214 | * {@code AWTPermission("listenToAllAWTEvents")} permission. | ||
| 2215 | * This may result in a SecurityException. | ||
| 2216 | * Listeners can be returned | ||
| 2217 | * within <code>AWTEventListenerProxy</code> objects, which also contain | ||
| 2218 | * the event mask for the given listener. | ||
| 2219 | * Note that listener objects | ||
| 2220 | * added multiple times appear only once in the returned array. | ||
| 2221 | * | ||
| 2222 | * @param eventMask the bitmask of event types to listen for | ||
| 2223 | * @return all of the <code>AWTEventListener</code>s registered | ||
| 2224 | * on this toolkit for the specified | ||
| 2225 | * event types, or an empty array if no such listeners | ||
| 2226 | * are currently registered | ||
| 2227 | * @throws SecurityException | ||
| 2228 | * if a security manager exists and its | ||
| 2229 | * <code>checkPermission</code> method doesn't allow the operation. | ||
| 2230 | * @see #addAWTEventListener | ||
| 2231 | * @see #removeAWTEventListener | ||
| 2232 | * @see SecurityManager#checkPermission | ||
| 2233 | * @see java.awt.AWTEvent | ||
| 2234 | * @see java.awt.AWTPermission | ||
| 2235 | * @see java.awt.event.AWTEventListener | ||
| 2236 | * @see java.awt.event.AWTEventListenerProxy | ||
| 2237 | * @since 1.4 | ||
| 2238 | */ | ||
| 2239 | public AWTEventListener[] getAWTEventListeners(long eventMask) { | ||
| 2240 | SecurityManager security = System.getSecurityManager(); | ||
| 2241 | if (security != null) { | ||
| 2242 | security.checkPermission(SecurityConstants.AWT.ALL_AWT_EVENTS_PERMISSION); | ||
| 2243 | } | ||
| 2244 | synchronized (this) { | ||
| 2245 | EventListener[] la = ToolkitEventMulticaster.getListeners(eventListener,AWTEventListener.class); | ||
| 2246 | |||
| 2247 | java.util.List list = new ArrayList(la.length); | ||
| 2248 | |||
| 2249 | for (int i = 0; i < la.length; i++) { | ||
| 2250 | SelectiveAWTEventListener sael = (SelectiveAWTEventListener)la[i]; | ||
| 2251 | if ((sael.getEventMask() & eventMask) == eventMask) { | ||
| 2252 | //AWTEventListener tempL = sael.getListener(); | ||
| 2253 | list.add(new AWTEventListenerProxy(sael.getEventMask(), | ||
| 2254 | sael.getListener())); | ||
| 2255 | } | ||
| 2256 | } | ||
| 2257 | return (AWTEventListener[])list.toArray(new AWTEventListener[0]); | ||
| 2258 | } | ||
| 2259 | } | ||
| 2260 | |||
| 2261 | /* | ||
| 2262 | * This method notifies any AWTEventListeners that an event | ||
| 2263 | * is about to be dispatched. | ||
| 2264 | * | ||
| 2265 | * @param theEvent the event which will be dispatched. | ||
| 2266 | */ | ||
| 2267 | void notifyAWTEventListeners(AWTEvent theEvent) { | ||
| 2268 | // This is a workaround for headless toolkits. It would be | ||
| 2269 | // better to override this method but it is declared package private. | ||
| 2270 | // "this instanceof" syntax defeats polymorphism. | ||
| 2271 | // --mm, 03/03/00 | ||
| 2272 | if (this instanceof HeadlessToolkit) { | ||
| 2273 | ((HeadlessToolkit)this).getUnderlyingToolkit() | ||
| 2274 | .notifyAWTEventListeners(theEvent); | ||
| 2275 | return; | ||
| 2276 | } | ||
| 2277 | |||
| 2278 | AWTEventListener eventListener = this.eventListener; | ||
| 2279 | if (eventListener != null) { | ||
| 2280 | eventListener.eventDispatched(theEvent); | ||
| 2281 | } | ||
| 2282 | } | ||
| 2283 | |||
| 2284 | static private class ToolkitEventMulticaster extends AWTEventMulticaster | ||
| 2285 | implements AWTEventListener { | ||
| 2286 | // Implementation cloned from AWTEventMulticaster. | ||
| 2287 | |||
| 2288 | ToolkitEventMulticaster(AWTEventListener a, AWTEventListener b) { | ||
| 2289 | super(a, b); | ||
| 2290 | } | ||
| 2291 | |||
| 2292 | static AWTEventListener add(AWTEventListener a, | ||
| 2293 | AWTEventListener b) { | ||
| 2294 | if (a == null) return b; | ||
| 2295 | if (b == null) return a; | ||
| 2296 | return new ToolkitEventMulticaster(a, b); | ||
| 2297 | } | ||
| 2298 | |||
| 2299 | static AWTEventListener remove(AWTEventListener l, | ||
| 2300 | AWTEventListener oldl) { | ||
| 2301 | return (AWTEventListener) removeInternal(l, oldl); | ||
| 2302 | } | ||
| 2303 | |||
| 2304 | // #4178589: must overload remove(EventListener) to call our add() | ||
| 2305 | // instead of the static addInternal() so we allocate a | ||
| 2306 | // ToolkitEventMulticaster instead of an AWTEventMulticaster. | ||
| 2307 | // Note: this method is called by AWTEventListener.removeInternal(), | ||
| 2308 | // so its method signature must match AWTEventListener.remove(). | ||
| 2309 | protected EventListener remove(EventListener oldl) { | ||
| 2310 | if (oldl == a) return b; | ||
| 2311 | if (oldl == b) return a; | ||
| 2312 | AWTEventListener a2 = (AWTEventListener)removeInternal(a, oldl); | ||
| 2313 | AWTEventListener b2 = (AWTEventListener)removeInternal(b, oldl); | ||
| 2314 | if (a2 == a && b2 == b) { | ||
| 2315 | return this; // it's not here | ||
| 2316 | } | ||
| 2317 | return add(a2, b2); | ||
| 2318 | } | ||
| 2319 | |||
| 2320 | public void eventDispatched(AWTEvent event) { | ||
| 2321 | ((AWTEventListener)a).eventDispatched(event); | ||
| 2322 | ((AWTEventListener)b).eventDispatched(event); | ||
| 2323 | } | ||
| 2324 | } | ||
| 2325 | |||
| 2326 | private class SelectiveAWTEventListener implements AWTEventListener { | ||
| 2327 | AWTEventListener listener; | ||
| 2328 | private long eventMask; | ||
| 2329 | // This array contains the number of times to call the eventlistener | ||
| 2330 | // for each event type. | ||
| 2331 | int[] calls = new int[Toolkit.LONG_BITS]; | ||
| 2332 | |||
| 2333 | public AWTEventListener getListener() {return listener;} | ||
| 2334 | public long getEventMask() {return eventMask;} | ||
| 2335 | public int[] getCalls() {return calls;} | ||
| 2336 | |||
| 2337 | public void orEventMasks(long mask) { | ||
| 2338 | eventMask |= mask; | ||
| 2339 | // For each event bit set in mask, increment its call count. | ||
| 2340 | for (int i=0; i<Toolkit.LONG_BITS; i++) { | ||
| 2341 | // If no bits are set, break out of loop. | ||
| 2342 | if (mask == 0) { | ||
| 2343 | break; | ||
| 2344 | } | ||
| 2345 | if ((mask & 1L) != 0) { // Always test bit 0. | ||
| 2346 | calls[i]++; | ||
| 2347 | } | ||
| 2348 | mask >>>= 1; // Right shift, fill with zeros on left. | ||
| 2349 | } | ||
| 2350 | } | ||
| 2351 | |||
| 2352 | SelectiveAWTEventListener(AWTEventListener l, long mask) { | ||
| 2353 | listener = l; | ||
| 2354 | eventMask = mask; | ||
| 2355 | } | ||
| 2356 | |||
| 2357 | public void eventDispatched(AWTEvent event) { | ||
| 2358 | long eventBit = 0; // Used to save the bit of the event type. | ||
| 2359 | if (((eventBit = eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0 && | ||
| 2360 | event.id >= ComponentEvent.COMPONENT_FIRST && | ||
| 2361 | event.id <= ComponentEvent.COMPONENT_LAST) | ||
| 2362 | || ((eventBit = eventMask & AWTEvent.CONTAINER_EVENT_MASK) != 0 && | ||
| 2363 | event.id >= ContainerEvent.CONTAINER_FIRST && | ||
| 2364 | event.id <= ContainerEvent.CONTAINER_LAST) | ||
| 2365 | || ((eventBit = eventMask & AWTEvent.FOCUS_EVENT_MASK) != 0 && | ||
| 2366 | event.id >= FocusEvent.FOCUS_FIRST && | ||
| 2367 | event.id <= FocusEvent.FOCUS_LAST) | ||
| 2368 | || ((eventBit = eventMask & AWTEvent.KEY_EVENT_MASK) != 0 && | ||
| 2369 | event.id >= KeyEvent.KEY_FIRST && | ||
| 2370 | event.id <= KeyEvent.KEY_LAST) | ||
| 2371 | || ((eventBit = eventMask & AWTEvent.MOUSE_WHEEL_EVENT_MASK) != 0 && | ||
| 2372 | event.id == MouseEvent.MOUSE_WHEEL) | ||
| 2373 | || ((eventBit = eventMask & AWTEvent.MOUSE_MOTION_EVENT_MASK) != 0 && | ||
| 2374 | (event.id == MouseEvent.MOUSE_MOVED || | ||
| 2375 | event.id == MouseEvent.MOUSE_DRAGGED)) | ||
| 2376 | || ((eventBit = eventMask & AWTEvent.MOUSE_EVENT_MASK) != 0 && | ||
| 2377 | event.id != MouseEvent.MOUSE_MOVED && | ||
| 2378 | event.id != MouseEvent.MOUSE_DRAGGED && | ||
| 2379 | event.id != MouseEvent.MOUSE_WHEEL && | ||
| 2380 | event.id >= MouseEvent.MOUSE_FIRST && | ||
| 2381 | event.id <= MouseEvent.MOUSE_LAST) | ||
| 2382 | || ((eventBit = eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 && | ||
| 2383 | (event.id >= WindowEvent.WINDOW_FIRST && | ||
| 2384 | event.id <= WindowEvent.WINDOW_LAST)) | ||
| 2385 | || ((eventBit = eventMask & AWTEvent.ACTION_EVENT_MASK) != 0 && | ||
| 2386 | event.id >= ActionEvent.ACTION_FIRST && | ||
| 2387 | event.id <= ActionEvent.ACTION_LAST) | ||
| 2388 | || ((eventBit = eventMask & AWTEvent.ADJUSTMENT_EVENT_MASK) != 0 && | ||
| 2389 | event.id >= AdjustmentEvent.ADJUSTMENT_FIRST && | ||
| 2390 | event.id <= AdjustmentEvent.ADJUSTMENT_LAST) | ||
| 2391 | || ((eventBit = eventMask & AWTEvent.ITEM_EVENT_MASK) != 0 && | ||
| 2392 | event.id >= ItemEvent.ITEM_FIRST && | ||
| 2393 | event.id <= ItemEvent.ITEM_LAST) | ||
| 2394 | || ((eventBit = eventMask & AWTEvent.TEXT_EVENT_MASK) != 0 && | ||
| 2395 | event.id >= TextEvent.TEXT_FIRST && | ||
| 2396 | event.id <= TextEvent.TEXT_LAST) | ||
| 2397 | || ((eventBit = eventMask & AWTEvent.INPUT_METHOD_EVENT_MASK) != 0 && | ||
| 2398 | event.id >= InputMethodEvent.INPUT_METHOD_FIRST && | ||
| 2399 | event.id <= InputMethodEvent.INPUT_METHOD_LAST) | ||
| 2400 | || ((eventBit = eventMask & AWTEvent.PAINT_EVENT_MASK) != 0 && | ||
| 2401 | event.id >= PaintEvent.PAINT_FIRST && | ||
| 2402 | event.id <= PaintEvent.PAINT_LAST) | ||
| 2403 | || ((eventBit = eventMask & AWTEvent.INVOCATION_EVENT_MASK) != 0 && | ||
| 2404 | event.id >= InvocationEvent.INVOCATION_FIRST && | ||
| 2405 | event.id <= InvocationEvent.INVOCATION_LAST) | ||
| 2406 | || ((eventBit = eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0 && | ||
| 2407 | event.id == HierarchyEvent.HIERARCHY_CHANGED) | ||
| 2408 | || ((eventBit = eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) != 0 && | ||
| 2409 | (event.id == HierarchyEvent.ANCESTOR_MOVED || | ||
| 2410 | event.id == HierarchyEvent.ANCESTOR_RESIZED)) | ||
| 2411 | || ((eventBit = eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 && | ||
| 2412 | event.id == WindowEvent.WINDOW_STATE_CHANGED) | ||
| 2413 | || ((eventBit = eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 && | ||
| 2414 | (event.id == WindowEvent.WINDOW_GAINED_FOCUS || | ||
| 2415 | event.id == WindowEvent.WINDOW_LOST_FOCUS)) | ||
| 2416 | || ((eventBit = eventMask & sun.awt.SunToolkit.GRAB_EVENT_MASK) != 0 && | ||
| 2417 | (event instanceof sun.awt.UngrabEvent))) { | ||
| 2418 | // Get the index of the call count for this event type. | ||
| 2419 | // Instead of using Math.log(...) we will calculate it with | ||
| 2420 | // bit shifts. That's what previous implementation looked like: | ||
| 2421 | // | ||
| 2422 | // int ci = (int) (Math.log(eventBit)/Math.log(2)); | ||
| 2423 | int ci = 0; | ||
| 2424 | for (long eMask = eventBit; eMask != 0; eMask >>>= 1, ci++) { | ||
| 2425 | } | ||
| 2426 | ci--; | ||
| 2427 | // Call the listener as many times as it was added for this | ||
| 2428 | // event type. | ||
| 2429 | for (int i=0; i<calls[ci]; i++) { | ||
| 2430 | listener.eventDispatched(event); | ||
| 2431 | } | ||
| 2432 | } | ||
| 2433 | } | ||
| 2434 | } | ||
| 2435 | |||
| 2436 | /** | ||
| 2437 | * Returns a map of visual attributes for the abstract level description | ||
| 2438 | * of the given input method highlight, or null if no mapping is found. | ||
| 2439 | * The style field of the input method highlight is ignored. The map | ||
| 2440 | * returned is unmodifiable. | ||
| 2441 | * @param highlight input method highlight | ||
| 2442 | * @return style attribute map, or <code>null</code> | ||
| 2443 | * @exception HeadlessException if | ||
| 2444 | * <code>GraphicsEnvironment.isHeadless</code> returns true | ||
| 2445 | * @see java.awt.GraphicsEnvironment#isHeadless | ||
| 2446 | * @since 1.3 | ||
| 2447 | */ | ||
| 2448 | public abstract Map<java.awt.font.TextAttribute,?> | ||
| 2449 | mapInputMethodHighlight(InputMethodHighlight highlight) | ||
| 2450 | throws HeadlessException; | ||
| 2451 | |||
| 2452 | private static PropertyChangeSupport createPropertyChangeSupport(Toolkit toolkit) { | ||
| 2453 | if (toolkit instanceof SunToolkit || toolkit instanceof HeadlessToolkit) { | ||
| 2454 | return new DesktopPropertyChangeSupport(toolkit); | ||
| 2455 | } else { | ||
| 2456 | return new PropertyChangeSupport(toolkit); | ||
| 2457 | } | ||
| 2458 | } | ||
| 2459 | |||
| 2460 | private static class DesktopPropertyChangeSupport extends PropertyChangeSupport { | ||
| 2461 | private static final StringBuilder PROP_CHANGE_SUPPORT_KEY = | ||
| 2462 | new StringBuilder("desktop property change support key"); | ||
| 2463 | private final Object source; | ||
| 2464 | |||
| 2465 | public DesktopPropertyChangeSupport(Object sourceBean) { | ||
| 2466 | super(sourceBean); | ||
| 2467 | source = sourceBean; | ||
| 2468 | } | ||
| 2469 | |||
| 2470 | @Override | ||
| 2471 | public synchronized void addPropertyChangeListener( | ||
| 2472 | String propertyName, | ||
| 2473 | PropertyChangeListener listener) | ||
| 2474 | { | ||
| 2475 | PropertyChangeSupport pcs = (PropertyChangeSupport) | ||
| 2476 | AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); | ||
| 2477 | if (null == pcs) { | ||
| 2478 | pcs = new PropertyChangeSupport(source); | ||
| 2479 | AppContext.getAppContext().put(PROP_CHANGE_SUPPORT_KEY, pcs); | ||
| 2480 | } | ||
| 2481 | pcs.addPropertyChangeListener(propertyName, listener); | ||
| 2482 | } | ||
| 2483 | |||
| 2484 | @Override | ||
| 2485 | public synchronized void removePropertyChangeListener( | ||
| 2486 | String propertyName, | ||
| 2487 | PropertyChangeListener listener) | ||
| 2488 | { | ||
| 2489 | PropertyChangeSupport pcs = (PropertyChangeSupport) | ||
| 2490 | AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); | ||
| 2491 | if (null != pcs) { | ||
| 2492 | pcs.removePropertyChangeListener(propertyName, listener); | ||
| 2493 | } | ||
| 2494 | } | ||
| 2495 | |||
| 2496 | @Override | ||
| 2497 | public synchronized PropertyChangeListener[] getPropertyChangeListeners() | ||
| 2498 | { | ||
| 2499 | PropertyChangeSupport pcs = (PropertyChangeSupport) | ||
| 2500 | AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); | ||
| 2501 | if (null != pcs) { | ||
| 2502 | return pcs.getPropertyChangeListeners(); | ||
| 2503 | } else { | ||
| 2504 | return new PropertyChangeListener[0]; | ||
| 2505 | } | ||
| 2506 | } | ||
| 2507 | |||
| 2508 | @Override | ||
| 2509 | public synchronized PropertyChangeListener[] getPropertyChangeListeners(String propertyName) | ||
| 2510 | { | ||
| 2511 | PropertyChangeSupport pcs = (PropertyChangeSupport) | ||
| 2512 | AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); | ||
| 2513 | if (null != pcs) { | ||
| 2514 | return pcs.getPropertyChangeListeners(propertyName); | ||
| 2515 | } else { | ||
| 2516 | return new PropertyChangeListener[0]; | ||
| 2517 | } | ||
| 2518 | } | ||
| 2519 | |||
| 2520 | @Override | ||
| 2521 | public synchronized void addPropertyChangeListener(PropertyChangeListener listener) { | ||
| 2522 | PropertyChangeSupport pcs = (PropertyChangeSupport) | ||
| 2523 | AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); | ||
| 2524 | if (null == pcs) { | ||
| 2525 | pcs = new PropertyChangeSupport(source); | ||
| 2526 | AppContext.getAppContext().put(PROP_CHANGE_SUPPORT_KEY, pcs); | ||
| 2527 | } | ||
| 2528 | pcs.addPropertyChangeListener(listener); | ||
| 2529 | } | ||
| 2530 | |||
| 2531 | @Override | ||
| 2532 | public synchronized void removePropertyChangeListener(PropertyChangeListener listener) { | ||
| 2533 | PropertyChangeSupport pcs = (PropertyChangeSupport) | ||
| 2534 | AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); | ||
| 2535 | if (null != pcs) { | ||
| 2536 | pcs.removePropertyChangeListener(listener); | ||
| 2537 | } | ||
| 2538 | } | ||
| 2539 | |||
| 2540 | /* | ||
| 2541 | * we do expect that all other fireXXX() methods of java.beans.PropertyChangeSupport | ||
| 2542 | * use this method. If this will be changed we will need to change this class. | ||
| 2543 | */ | ||
| 2544 | @Override | ||
| 2545 | public void firePropertyChange(final PropertyChangeEvent evt) { | ||
| 2546 | Object oldValue = evt.getOldValue(); | ||
| 2547 | Object newValue = evt.getNewValue(); | ||
| 2548 | String propertyName = evt.getPropertyName(); | ||
| 2549 | if (oldValue != null && newValue != null && oldValue.equals(newValue)) { | ||
| 2550 | return; | ||
| 2551 | } | ||
| 2552 | Runnable updater = new Runnable() { | ||
| 2553 | public void run() { | ||
| 2554 | PropertyChangeSupport pcs = (PropertyChangeSupport) | ||
| 2555 | AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); | ||
| 2556 | if (null != pcs) { | ||
| 2557 | pcs.firePropertyChange(evt); | ||
| 2558 | } | ||
| 2559 | } | ||
| 2560 | }; | ||
| 2561 | final AppContext currentAppContext = AppContext.getAppContext(); | ||
| 2562 | for (AppContext appContext : AppContext.getAppContexts()) { | ||
| 2563 | if (null == appContext || appContext.isDisposed()) { | ||
| 2564 | continue; | ||
| 2565 | } | ||
| 2566 | if (currentAppContext == appContext) { | ||
| 2567 | updater.run(); | ||
| 2568 | } else { | ||
| 2569 | final PeerEvent e = new PeerEvent(source, updater, PeerEvent.ULTIMATE_PRIORITY_EVENT); | ||
| 2570 | SunToolkit.postEvent(appContext, e); | ||
| 2571 | } | ||
| 2572 | } | ||
| 2573 | } | ||
| 2574 | } | ||
| 2575 | |||
| 2576 | /** | ||
| 2577 | * Reports whether events from extra mouse buttons are allowed to be processed and posted into | ||
| 2578 | * {@code EventQueue}. | ||
| 2579 | * <br> | ||
| 2580 | * To change the returned value it is necessary to set the {@code sun.awt.enableExtraMouseButtons} | ||
| 2581 | * property before the {@code Toolkit} class initialization. This setting could be done on the application | ||
| 2582 | * startup by the following command: | ||
| 2583 | * <pre> | ||
| 2584 | * java -Dsun.awt.enableExtraMouseButtons=false Application | ||
| 2585 | * </pre> | ||
| 2586 | * Alternatively, the property could be set in the application by using the following code: | ||
| 2587 | * <pre> | ||
| 2588 | * System.setProperty("sun.awt.enableExtraMouseButtons", "true"); | ||
| 2589 | * </pre> | ||
| 2590 | * before the {@code Toolkit} class initialization. | ||
| 2591 | * If not set by the time of the {@code Toolkit} class initialization, this property will be | ||
| 2592 | * initialized with {@code true}. | ||
| 2593 | * Changing this value after the {@code Toolkit} class initialization will have no effect. | ||
| 2594 | * <p> | ||
| 2595 | * @exception HeadlessException if GraphicsEnvironment.isHeadless() returns true | ||
| 2596 | * @return {@code true} if events from extra mouse buttons are allowed to be processed and posted; | ||
| 2597 | * {@code false} otherwise | ||
| 2598 | * @see System#getProperty(String propertyName) | ||
| 2599 | * @see System#setProperty(String propertyName, String value) | ||
| 2600 | * @see java.awt.EventQueue | ||
| 2601 | * @since 1.7 | ||
| 2602 | */ | ||
| 2603 | public boolean areExtraMouseButtonsEnabled() throws HeadlessException { | ||
| 2604 | GraphicsEnvironment.checkHeadless(); | ||
| 2605 | |||
| 2606 | return Toolkit.getDefaultToolkit().areExtraMouseButtonsEnabled(); | ||
| 2607 | } | ||
| 2608 | } | ||