Mercurial > projects > dwt-linux
annotate dwt/graphics/Device.d @ 55:93981635e709
Checked and inserted missing default switch cases.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Fri, 11 Jan 2008 15:40:16 +0100 |
| parents | 8f049b136add |
| children | 8cec8f536af3 |
| rev | line source |
|---|---|
| 18 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 *******************************************************************************/ | |
| 11 module dwt.graphics.Device; | |
| 12 | |
| 13 import dwt.graphics.Color; | |
| 19 | 14 import dwt.graphics.Font; |
| 15 import dwt.graphics.Drawable; | |
| 16 import dwt.graphics.DeviceData; | |
| 17 import dwt.graphics.Rectangle; | |
| 18 import dwt.graphics.FontData; | |
| 19 import dwt.graphics.Font; | |
| 20 import dwt.graphics.GCData; | |
| 21 import dwt.dwthelper.Runnable; | |
| 22 import dwt.SWT; | |
| 23 import dwt.SWTError; | |
| 24 import dwt.internal.Compatibility; | |
| 25 import dwt.internal.gtk.OS; | |
| 26 | |
| 27 import tango.core.Exception; | |
| 28 import tango.stdc.stringz; | |
| 29 import tango.io.Stdout; | |
| 30 | |
| 18 | 31 /** |
| 32 * This class is the abstract superclass of all device objects, | |
| 33 * such as the Display device and the Printer device. Devices | |
| 34 * can have a graphics context (GC) created for them, and they | |
| 35 * can be drawn on by sending messages to the associated GC. | |
| 36 */ | |
| 19 | 37 public abstract class Device : Drawable { |
| 18 | 38 /** |
| 39 * the handle to the X Display | |
| 40 * (Warning: This field is platform dependent) | |
| 41 * <p> | |
| 42 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT | |
| 43 * public API. It is marked protected only so that it can be shared | |
| 44 * within the packages provided by SWT. It is not available on all | |
| 45 * platforms and should never be accessed from application code. | |
| 46 * </p> | |
| 47 */ | |
| 28 | 48 protected void* xDisplay; |
| 19 | 49 GtkWidget* shellHandle; |
| 18 | 50 |
| 51 /* Debugging */ | |
| 19 | 52 public static bool DEBUG; |
| 53 bool debugging; | |
| 54 bool tracking; | |
| 55 TracedException [] errors; | |
| 18 | 56 Object [] objects; |
| 57 | |
| 58 /* Colormap and reference count */ | |
| 19 | 59 GdkColor *[] gdkColors; |
| 18 | 60 int [] colorRefCount; |
| 61 | |
| 62 /* Disposed flag */ | |
| 19 | 63 bool disposed; |
| 18 | 64 |
| 65 /* Warning and Error Handlers */ | |
| 19 | 66 //int /*long*/ logProcFld; |
| 67 //GLogFunc logCallback; | |
| 18 | 68 //NOT DONE - get list of valid names |
| 19 | 69 char[] [] log_domains = ["GLib-GObject"[], "GLib", "GObject", "Pango", "ATK", "GdkPixbuf", "Gdk", "Gtk", "GnomeVFS"]; |
| 70 int [] handler_ids;// = new int [log_domains.length]; | |
| 18 | 71 int warningLevel; |
| 72 | |
| 73 /* X Warning and Error Handlers */ | |
| 19 | 74 static extern(C) int function(void *) mXIOErrorHandler; |
| 75 static extern(C) int function(void *, XErrorEvent *) mXErrorHandler; | |
| 76 //static int mXErrorCallback, mXIOErrorCallback; | |
| 77 | |
| 18 | 78 static int /*long*/ XErrorProc, XIOErrorProc, XNullErrorProc, XNullIOErrorProc; |
| 19 | 79 static Device[] Devices; |
| 18 | 80 |
| 81 /* | |
| 82 * The following colors are listed in the Windows | |
| 83 * Programmer's Reference as the colors in the default | |
| 84 * palette. | |
| 85 */ | |
| 86 Color COLOR_BLACK, COLOR_DARK_RED, COLOR_DARK_GREEN, COLOR_DARK_YELLOW, COLOR_DARK_BLUE; | |
| 87 Color COLOR_DARK_MAGENTA, COLOR_DARK_CYAN, COLOR_GRAY, COLOR_DARK_GRAY, COLOR_RED; | |
| 88 Color COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE; | |
| 89 | |
| 90 /* System Font */ | |
| 91 Font systemFont; | |
| 92 | |
| 19 | 93 PangoTabArray* emptyTab; |
| 18 | 94 |
| 19 | 95 bool useXRender; |
| 18 | 96 |
| 19 | 97 static bool CAIRO_LOADED; |
| 18 | 98 |
| 54 | 99 static Object CREATE_LOCK; |
| 18 | 100 |
| 101 /* | |
| 102 * TEMPORARY CODE. When a graphics object is | |
| 103 * created and the device parameter is null, | |
| 104 * the current Display is used. This presents | |
| 105 * a problem because SWT graphics does not | |
| 106 * reference classes in SWT widgets. The correct | |
| 107 * fix is to remove this feature. Unfortunately, | |
| 108 * too many application programs rely on this | |
| 109 * feature. | |
| 110 * | |
| 111 * This code will be removed in the future. | |
| 112 */ | |
| 113 protected static Device CurrentDevice; | |
| 114 protected static Runnable DeviceFinder; | |
| 115 | |
| 54 | 116 synchronized static void static_this(){ |
| 19 | 117 CREATE_LOCK = new Object(); |
| 118 Devices = new Device[4]; | |
| 119 } | |
| 18 | 120 /* |
| 121 * TEMPORARY CODE. | |
| 122 */ | |
| 123 static synchronized Device getDevice () { | |
| 19 | 124 if (DeviceFinder !is null) DeviceFinder.run(); |
| 18 | 125 Device device = CurrentDevice; |
| 126 CurrentDevice = null; | |
| 127 return device; | |
| 128 } | |
| 129 | |
| 130 /** | |
| 131 * Constructs a new instance of this class. | |
| 132 * <p> | |
| 133 * You must dispose the device when it is no longer required. | |
| 134 * </p> | |
| 135 * | |
| 136 * @see #create | |
| 137 * @see #init | |
| 138 * | |
| 139 * @since 3.1 | |
| 140 */ | |
| 19 | 141 public this() { |
| 18 | 142 this(null); |
| 143 } | |
| 144 | |
| 145 /** | |
| 146 * Constructs a new instance of this class. | |
| 147 * <p> | |
| 148 * You must dispose the device when it is no longer required. | |
| 149 * </p> | |
| 150 * | |
| 151 * @param data the DeviceData which describes the receiver | |
| 152 * | |
| 153 * @see #create | |
| 154 * @see #init | |
| 155 * @see DeviceData | |
| 156 */ | |
| 19 | 157 public this(DeviceData data) { |
| 158 handler_ids = new int [log_domains.length]; | |
| 159 debugging = DEBUG; | |
| 160 tracking = DEBUG; | |
| 161 | |
| 18 | 162 synchronized (CREATE_LOCK) { |
| 54 | 163 if (data !is null) { |
| 19 | 164 debugging = data.debugging; |
| 18 | 165 tracking = data.tracking; |
| 166 } | |
| 167 if (tracking) { | |
| 19 | 168 errors = new TracedException [128]; |
| 18 | 169 objects = new Object [128]; |
| 170 } | |
| 171 create (data); | |
| 172 init (); | |
| 173 register (this); | |
| 174 | |
| 175 /* Initialize the system font slot */ | |
| 176 systemFont = getSystemFont (); | |
| 177 } | |
| 178 } | |
| 179 | |
| 180 void checkCairo() { | |
| 181 } | |
| 182 | |
| 183 /** | |
| 184 * Throws an <code>SWTException</code> if the receiver can not | |
| 185 * be accessed by the caller. This may include both checks on | |
| 186 * the state of the receiver and more generally on the entire | |
| 187 * execution context. This method <em>should</em> be called by | |
| 188 * device implementors to enforce the standard SWT invariants. | |
| 189 * <p> | |
| 190 * Currently, it is an error to invoke any method (other than | |
| 191 * <code>isDisposed()</code> and <code>dispose()</code>) on a | |
| 192 * device that has had its <code>dispose()</code> method called. | |
| 193 * </p><p> | |
| 194 * In future releases of SWT, there may be more or fewer error | |
| 195 * checks and exceptions may be thrown for different reasons. | |
| 196 * <p> | |
| 197 * | |
| 198 * @exception SWTException <ul> | |
| 199 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 200 * </ul> | |
| 201 */ | |
| 202 protected void checkDevice () { | |
| 203 if (disposed) SWT.error(SWT.ERROR_DEVICE_DISPOSED); | |
| 204 } | |
| 205 | |
| 206 /** | |
| 207 * Creates the device in the operating system. If the device | |
| 208 * does not have a handle, this method may do nothing depending | |
| 209 * on the device. | |
| 210 * <p> | |
| 211 * This method is called before <code>init</code>. | |
| 212 * </p><p> | |
| 213 * Subclasses are supposed to reimplement this method and not | |
| 214 * call the <code>super</code> implementation. | |
| 215 * </p> | |
| 216 * | |
| 217 * @param data the DeviceData which describes the receiver | |
| 218 * | |
| 219 * @see #init | |
| 220 */ | |
| 221 protected void create (DeviceData data) { | |
| 222 } | |
| 223 | |
| 224 /** | |
| 225 * Disposes of the operating system resources associated with | |
| 226 * the receiver. After this method has been invoked, the receiver | |
| 227 * will answer <code>true</code> when sent the message | |
| 228 * <code>isDisposed()</code>. | |
| 229 * | |
| 230 * @see #release | |
| 231 * @see #destroy | |
| 232 * @see #checkDevice | |
| 233 */ | |
| 234 public void dispose () { | |
| 235 if (isDisposed()) return; | |
| 236 checkDevice (); | |
| 237 release (); | |
| 238 destroy (); | |
| 239 deregister (this); | |
| 19 | 240 xDisplay = null; |
| 18 | 241 disposed = true; |
| 242 if (tracking) { | |
| 243 objects = null; | |
| 244 errors = null; | |
| 245 } | |
| 246 } | |
| 247 | |
| 248 void dispose_Object (Object object) { | |
| 249 for (int i=0; i<objects.length; i++) { | |
| 19 | 250 if (objects [i] is object) { |
| 18 | 251 objects [i] = null; |
| 252 errors [i] = null; | |
| 253 return; | |
| 254 } | |
| 255 } | |
| 256 } | |
| 257 | |
| 28 | 258 static synchronized Device findDevice (void* xDisplay) { |
| 18 | 259 for (int i=0; i<Devices.length; i++) { |
| 260 Device device = Devices [i]; | |
| 19 | 261 if (device !is null && device.xDisplay is xDisplay) { |
| 18 | 262 return device; |
| 263 } | |
| 264 } | |
| 265 return null; | |
| 266 } | |
| 267 | |
| 268 synchronized static void deregister (Device device) { | |
| 269 for (int i=0; i<Devices.length; i++) { | |
| 19 | 270 if (device is Devices [i]) Devices [i] = null; |
| 18 | 271 } |
| 272 } | |
| 273 | |
| 274 /** | |
| 275 * Destroys the device in the operating system and releases | |
| 276 * the device's handle. If the device does not have a handle, | |
| 277 * this method may do nothing depending on the device. | |
| 278 * <p> | |
| 279 * This method is called after <code>release</code>. | |
| 280 * </p><p> | |
| 281 * Subclasses are supposed to reimplement this method and not | |
| 282 * call the <code>super</code> implementation. | |
| 283 * </p> | |
| 284 * | |
| 285 * @see #dispose | |
| 286 * @see #release | |
| 287 */ | |
| 288 protected void destroy () { | |
| 289 } | |
| 290 | |
| 291 /** | |
| 292 * Returns a rectangle describing the receiver's size and location. | |
| 293 * | |
| 294 * @return the bounding rectangle | |
| 295 * | |
| 296 * @exception SWTException <ul> | |
| 297 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 298 * </ul> | |
| 299 */ | |
| 300 public Rectangle getBounds () { | |
| 301 checkDevice (); | |
| 302 return new Rectangle(0, 0, 0, 0); | |
| 303 } | |
| 304 | |
| 305 /** | |
| 306 * Returns a <code>DeviceData</code> based on the receiver. | |
| 307 * Modifications made to this <code>DeviceData</code> will not | |
| 308 * affect the receiver. | |
| 309 * | |
| 310 * @return a <code>DeviceData</code> containing the device's data and attributes | |
| 311 * | |
| 312 * @exception SWTException <ul> | |
| 313 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 314 * </ul> | |
| 315 * | |
| 316 * @see DeviceData | |
| 317 */ | |
| 318 public DeviceData getDeviceData () { | |
| 319 checkDevice(); | |
| 320 DeviceData data = new DeviceData (); | |
| 19 | 321 data.debugging = debugging; |
| 18 | 322 data.tracking = tracking; |
| 323 int count = 0, length = 0; | |
| 324 if (tracking) length = objects.length; | |
| 325 for (int i=0; i<length; i++) { | |
| 54 | 326 if (objects [i] !is null) count++; |
| 18 | 327 } |
| 328 int index = 0; | |
| 329 data.objects = new Object [count]; | |
| 19 | 330 data.errors = new TracedException [count]; |
| 18 | 331 for (int i=0; i<length; i++) { |
| 54 | 332 if (objects [i] !is null) { |
| 18 | 333 data.objects [index] = objects [i]; |
| 334 data.errors [index] = errors [i]; | |
| 335 index++; | |
| 336 } | |
| 337 } | |
| 338 return data; | |
| 339 } | |
| 340 | |
| 341 /** | |
| 342 * Returns a rectangle which describes the area of the | |
| 343 * receiver which is capable of displaying data. | |
| 344 * | |
| 345 * @return the client area | |
| 346 * | |
| 347 * @exception SWTException <ul> | |
| 348 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 349 * </ul> | |
| 350 * | |
| 351 * @see #getBounds | |
| 352 */ | |
| 353 public Rectangle getClientArea () { | |
| 354 checkDevice (); | |
| 355 return getBounds (); | |
| 356 } | |
| 357 | |
| 358 /** | |
| 359 * Returns the bit depth of the screen, which is the number of | |
| 360 * bits it takes to represent the number of unique colors that | |
| 361 * the screen is currently capable of displaying. This number | |
| 362 * will typically be one of 1, 8, 15, 16, 24 or 32. | |
| 363 * | |
| 364 * @return the depth of the screen | |
| 365 * | |
| 366 * @exception SWTException <ul> | |
| 367 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 368 * </ul> | |
| 369 */ | |
| 370 public int getDepth () { | |
| 371 checkDevice (); | |
| 372 return 0; | |
| 373 } | |
| 374 | |
| 375 /** | |
| 376 * Returns a point whose x coordinate is the horizontal | |
| 377 * dots per inch of the display, and whose y coordinate | |
| 378 * is the vertical dots per inch of the display. | |
| 379 * | |
| 380 * @return the horizontal and vertical DPI | |
| 381 * | |
| 382 * @exception SWTException <ul> | |
| 383 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 384 * </ul> | |
| 385 */ | |
| 386 public Point getDPI () { | |
| 387 checkDevice (); | |
| 388 return new Point (72, 72); | |
| 389 } | |
| 390 | |
| 391 /** | |
| 392 * Returns <code>FontData</code> objects which describe | |
| 393 * the fonts that match the given arguments. If the | |
| 394 * <code>faceName</code> is null, all fonts will be returned. | |
| 395 * | |
| 396 * @param faceName the name of the font to look for, or null | |
| 397 * @param scalable if true only scalable fonts are returned, otherwise only non-scalable fonts are returned. | |
| 398 * @return the matching font data | |
| 399 * | |
| 400 * @exception SWTException <ul> | |
| 401 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 402 * </ul> | |
| 403 */ | |
| 19 | 404 public FontData[] getFontList (char[] faceName, bool scalable) { |
| 18 | 405 checkDevice (); |
| 406 if (!scalable) return new FontData[0]; | |
| 19 | 407 PangoFontFamily* family; |
| 408 PangoFontFace * face; | |
| 409 PangoFontFamily** families; | |
| 410 int n_families; | |
| 411 PangoFontFace ** faces; | |
| 412 int n_faces; | |
| 413 auto context = OS.gdk_pango_context_get(); | |
| 414 OS.pango_context_list_families(context, &families, &n_families); | |
| 18 | 415 int nFds = 0; |
| 54 | 416 FontData[] fds = new FontData[faceName !is null ? 4 : n_families]; |
| 19 | 417 for (int i=0; i<n_families; i++) { |
| 418 family = families[i]; | |
| 419 bool match = true; | |
| 54 | 420 if (faceName !is null) { |
| 19 | 421 auto familyName = OS.pango_font_family_get_name(family); |
| 422 match = Compatibility.equalsIgnoreCase(faceName, fromUtf8z( familyName )); | |
| 18 | 423 } |
| 424 if (match) { | |
| 19 | 425 OS.pango_font_family_list_faces(family, &faces, &n_faces); |
| 426 for (int j=0; j<n_faces; j++) { | |
| 427 face = faces[j]; | |
| 428 auto fontDesc = OS.pango_font_face_describe(face); | |
| 18 | 429 Font font = Font.gtk_new(this, fontDesc); |
| 430 FontData data = font.getFontData()[0]; | |
| 54 | 431 if (nFds is fds.length) { |
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432 FontData[] newFds = new FontData[fds.length + n_families]; |
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433 System.arraycopy(fds, 0, newFds, 0, nFds); |
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434 fds = newFds; |
| 18 | 435 } |
| 436 fds[nFds++] = data; | |
| 437 OS.pango_font_description_free(fontDesc); | |
| 438 } | |
| 439 OS.g_free(faces[0]); | |
| 19 | 440 if (faceName !is null) break; |
| 18 | 441 } |
| 442 } | |
| 19 | 443 OS.g_free(families); |
| 18 | 444 OS.g_object_unref(context); |
| 54 | 445 if (nFds is fds.length) return fds; |
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446 FontData[] result = new FontData[nFds]; |
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447 System.arraycopy(fds, 0, result, 0, nFds); |
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448 return result; |
| 18 | 449 } |
| 450 | |
| 451 /** | |
| 452 * Returns the matching standard color for the given | |
| 453 * constant, which should be one of the color constants | |
| 454 * specified in class <code>SWT</code>. Any value other | |
| 455 * than one of the SWT color constants which is passed | |
| 456 * in will result in the color black. This color should | |
| 457 * not be freed because it was allocated by the system, | |
| 458 * not the application. | |
| 459 * | |
| 460 * @param id the color constant | |
| 461 * @return the matching color | |
| 462 * | |
| 463 * @exception SWTException <ul> | |
| 464 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 465 * </ul> | |
| 466 * | |
| 467 * @see SWT | |
| 468 */ | |
| 469 public Color getSystemColor (int id) { | |
| 470 checkDevice (); | |
| 471 switch (id) { | |
| 472 case SWT.COLOR_BLACK: return COLOR_BLACK; | |
| 473 case SWT.COLOR_DARK_RED: return COLOR_DARK_RED; | |
| 474 case SWT.COLOR_DARK_GREEN: return COLOR_DARK_GREEN; | |
| 475 case SWT.COLOR_DARK_YELLOW: return COLOR_DARK_YELLOW; | |
| 476 case SWT.COLOR_DARK_BLUE: return COLOR_DARK_BLUE; | |
| 477 case SWT.COLOR_DARK_MAGENTA: return COLOR_DARK_MAGENTA; | |
| 478 case SWT.COLOR_DARK_CYAN: return COLOR_DARK_CYAN; | |
| 479 case SWT.COLOR_GRAY: return COLOR_GRAY; | |
| 480 case SWT.COLOR_DARK_GRAY: return COLOR_DARK_GRAY; | |
| 481 case SWT.COLOR_RED: return COLOR_RED; | |
| 482 case SWT.COLOR_GREEN: return COLOR_GREEN; | |
| 483 case SWT.COLOR_YELLOW: return COLOR_YELLOW; | |
| 484 case SWT.COLOR_BLUE: return COLOR_BLUE; | |
| 485 case SWT.COLOR_MAGENTA: return COLOR_MAGENTA; | |
| 486 case SWT.COLOR_CYAN: return COLOR_CYAN; | |
| 487 case SWT.COLOR_WHITE: return COLOR_WHITE; | |
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488 default: |
| 18 | 489 } |
| 490 return COLOR_BLACK; | |
| 491 } | |
| 492 | |
| 493 /** | |
| 494 * Returns a reasonable font for applications to use. | |
| 495 * On some platforms, this will match the "default font" | |
| 496 * or "system font" if such can be found. This font | |
| 497 * should not be freed because it was allocated by the | |
| 498 * system, not the application. | |
| 499 * <p> | |
| 500 * Typically, applications which want the default look | |
| 501 * should simply not set the font on the widgets they | |
| 502 * create. Widgets are always created with the correct | |
| 503 * default font for the class of user-interface component | |
| 504 * they represent. | |
| 505 * </p> | |
| 506 * | |
| 507 * @return a font | |
| 508 * | |
| 509 * @exception SWTException <ul> | |
| 510 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 511 * </ul> | |
| 512 */ | |
| 513 public Font getSystemFont () { | |
| 514 checkDevice (); | |
| 515 return systemFont; | |
| 516 } | |
| 517 | |
| 518 /** | |
| 519 * Returns <code>true</code> if the underlying window system prints out | |
| 520 * warning messages on the console, and <code>setWarnings</code> | |
| 521 * had previously been called with <code>true</code>. | |
| 522 * | |
| 523 * @return <code>true</code>if warnings are being handled, and <code>false</code> otherwise | |
| 524 * | |
| 525 * @exception SWTException <ul> | |
| 526 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 527 * </ul> | |
| 528 */ | |
| 19 | 529 public bool getWarnings () { |
| 18 | 530 checkDevice (); |
| 54 | 531 return warningLevel is 0; |
| 18 | 532 } |
| 533 | |
| 534 /** | |
| 535 * Initializes any internal resources needed by the | |
| 536 * device. | |
| 537 * <p> | |
| 538 * This method is called after <code>create</code>. | |
| 539 * </p><p> | |
| 540 * If subclasses reimplement this method, they must | |
| 541 * call the <code>super</code> implementation. | |
| 542 * </p> | |
| 543 * | |
| 544 * @see #create | |
| 545 */ | |
| 546 protected void init () { | |
| 19 | 547 if (xDisplay !is null) { |
| 548 int event_basep, error_basep; | |
| 549 if (OS.XRenderQueryExtension (xDisplay, &event_basep, &error_basep)) { | |
| 550 int major_version, minor_version; | |
| 551 OS.XRenderQueryVersion (xDisplay, &major_version, &minor_version); | |
| 54 | 552 useXRender = major_version > 0 || (major_version is 0 && minor_version >= 8); |
| 18 | 553 } |
| 554 } | |
| 555 | |
| 19 | 556 if (debugging) { |
| 557 if (xDisplay !is null) { | |
| 18 | 558 /* Create the warning and error callbacks */ |
| 19 | 559 synchronized (CREATE_LOCK) { |
| 18 | 560 int index = 0; |
| 561 while (index < Devices.length) { | |
| 54 | 562 if (Devices [index] !is null) break; |
| 18 | 563 index++; |
| 564 } | |
| 54 | 565 if (index is Devices.length) { |
| 19 | 566 OS.XSetErrorHandler ( & XErrorProcFunc ); |
| 567 OS.XSetIOErrorHandler ( & XIOErrorProcFunc ); | |
| 18 | 568 } |
| 569 } | |
| 570 OS.XSynchronize (xDisplay, true); | |
| 571 } | |
| 572 } | |
| 573 | |
| 574 /* Create GTK warnings and error callbacks */ | |
| 19 | 575 if (xDisplay !is null) { |
| 18 | 576 /* Set GTK warning and error handlers */ |
| 19 | 577 if (debugging) { |
| 18 | 578 int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; |
| 579 for (int i=0; i<log_domains.length; i++) { | |
|
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580 handler_ids [i] = OS.g_log_set_handler (toStringz(log_domains [i]), flags, & logFunction, cast(void*)this); |
| 18 | 581 } |
| 582 } | |
| 583 } | |
| 584 | |
| 19 | 585 /* Create the standard colors */ |
| 18 | 586 COLOR_BLACK = new Color (this, 0,0,0); |
| 587 COLOR_DARK_RED = new Color (this, 0x80,0,0); | |
| 588 COLOR_DARK_GREEN = new Color (this, 0,0x80,0); | |
| 589 COLOR_DARK_YELLOW = new Color (this, 0x80,0x80,0); | |
| 590 COLOR_DARK_BLUE = new Color (this, 0,0,0x80); | |
| 591 COLOR_DARK_MAGENTA = new Color (this, 0x80,0,0x80); | |
| 592 COLOR_DARK_CYAN = new Color (this, 0,0x80,0x80); | |
| 593 COLOR_GRAY = new Color (this, 0xC0,0xC0,0xC0); | |
| 594 COLOR_DARK_GRAY = new Color (this, 0x80,0x80,0x80); | |
| 595 COLOR_RED = new Color (this, 0xFF,0,0); | |
| 596 COLOR_GREEN = new Color (this, 0,0xFF,0); | |
| 597 COLOR_YELLOW = new Color (this, 0xFF,0xFF,0); | |
| 598 COLOR_BLUE = new Color (this, 0,0,0xFF); | |
| 599 COLOR_MAGENTA = new Color (this, 0xFF,0,0xFF); | |
| 600 COLOR_CYAN = new Color (this, 0,0xFF,0xFF); | |
| 601 COLOR_WHITE = new Color (this, 0xFF,0xFF,0xFF); | |
| 602 | |
| 603 emptyTab = OS.pango_tab_array_new(1, false); | |
| 19 | 604 if (emptyTab is null) SWT.error(SWT.ERROR_NO_HANDLES); |
|
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605 OS.pango_tab_array_set_tab(emptyTab, 0, OS.PANGO_TAB_LEFT, 1); |
| 18 | 606 |
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607 shellHandle = OS.gtk_window_new(OS.GTK_WINDOW_TOPLEVEL); |
| 19 | 608 if (shellHandle is null) SWT.error(SWT.ERROR_NO_HANDLES); |
| 18 | 609 OS.gtk_widget_realize(shellHandle); |
| 610 } | |
| 611 | |
| 612 /** | |
| 613 * Invokes platform specific functionality to allocate a new GC handle. | |
| 614 * <p> | |
| 615 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 616 * API for <code>Device</code>. It is marked public only so that it | |
| 617 * can be shared within the packages provided by SWT. It is not | |
| 618 * available on all platforms, and should never be called from | |
| 619 * application code. | |
| 620 * </p> | |
| 621 * | |
| 622 * @param data the platform specific GC data | |
| 623 * @return the platform specific GC handle | |
| 624 */ | |
| 19 | 625 public abstract GdkGC* internal_new_GC (GCData data); |
| 18 | 626 |
| 627 /** | |
| 628 * Invokes platform specific functionality to dispose a GC handle. | |
| 629 * <p> | |
| 630 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 631 * API for <code>Device</code>. It is marked public only so that it | |
| 632 * can be shared within the packages provided by SWT. It is not | |
| 633 * available on all platforms, and should never be called from | |
| 634 * application code. | |
| 635 * </p> | |
| 636 * | |
| 637 * @param hDC the platform specific GC handle | |
| 638 * @param data the platform specific GC data | |
| 639 */ | |
| 19 | 640 public abstract void internal_dispose_GC (GdkGC* handle, GCData data); |
| 18 | 641 |
| 642 /** | |
| 643 * Returns <code>true</code> if the device has been disposed, | |
| 644 * and <code>false</code> otherwise. | |
| 645 * <p> | |
| 646 * This method gets the dispose state for the device. | |
| 647 * When a device has been disposed, it is an error to | |
| 648 * invoke any other method using the device. | |
| 649 * | |
| 650 * @return <code>true</code> when the device is disposed and <code>false</code> otherwise | |
| 651 */ | |
| 19 | 652 public bool isDisposed () { |
| 18 | 653 return disposed; |
| 654 } | |
| 655 | |
| 656 /** | |
| 657 * Loads the font specified by a file. The font will be | |
| 658 * present in the list of fonts available to the application. | |
| 659 * | |
| 660 * @param path the font file path | |
| 661 * @return whether the font was successfully loaded | |
| 662 * | |
| 663 * @exception SWTException <ul> | |
| 664 * <li>ERROR_NULL_ARGUMENT - if path is null</li> | |
| 665 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 666 * </ul> | |
| 667 * | |
| 668 * @see Font | |
| 669 * | |
| 670 * @since 3.3 | |
| 671 */ | |
| 19 | 672 public bool loadFont (char[] path) { |
| 18 | 673 checkDevice(); |
| 54 | 674 if (path is null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| 19 | 675 return cast(bool) OS.FcConfigAppFontAddFile (null, toStringz(path)); |
| 18 | 676 } |
| 677 | |
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678 private static extern(C) void logFunction (char* log_domain, int log_level, char* message, void* user_data) { |
| 19 | 679 Device dev = cast(Device)user_data; |
| 54 | 680 if (dev.warningLevel is 0) { |
| 19 | 681 if (DEBUG || dev.debugging) { |
| 682 foreach( msg; new TracedException ("") ){ | |
| 683 Stderr.formatln( "trc {}", msg ); | |
| 684 } | |
| 18 | 685 } |
| 19 | 686 OS.g_log_default_handler (log_domain, log_level, message, user_data); |
| 18 | 687 } |
| 688 return 0; | |
| 689 } | |
| 690 | |
| 691 void new_Object (Object object) { | |
| 692 for (int i=0; i<objects.length; i++) { | |
| 19 | 693 if (objects [i] is null) { |
| 18 | 694 objects [i] = object; |
| 19 | 695 errors [i] = new TracedException (""); |
| 18 | 696 return; |
| 697 } | |
| 698 } | |
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699 Object [] newObjects = new Object [objects.length + 128]; |
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700 System.arraycopy (objects, 0, newObjects, 0, objects.length); |
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701 newObjects [objects.length] = object; |
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702 objects = newObjects; |
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703 TracedException [] newErrors = new TracedException [errors.length + 128]; |
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704 System.arraycopy (errors, 0, newErrors, 0, errors.length); |
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705 newErrors [errors.length] = new TracedException (""); |
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706 errors = newErrors; |
| 18 | 707 } |
| 708 | |
| 709 static synchronized void register (Device device) { | |
| 710 for (int i=0; i<Devices.length; i++) { | |
| 19 | 711 if (Devices [i] is null) { |
| 18 | 712 Devices [i] = device; |
| 713 return; | |
| 714 } | |
| 715 } | |
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716 Device [] newDevices = new Device [Devices.length + 4]; |
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717 System.arraycopy (Devices, 0, newDevices, 0, Devices.length); |
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718 newDevices [Devices.length] = device; |
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719 Devices = newDevices; |
| 18 | 720 } |
| 721 | |
| 722 /** | |
| 723 * Releases any internal resources back to the operating | |
| 724 * system and clears all fields except the device handle. | |
| 725 * <p> | |
| 726 * When a device is destroyed, resources that were acquired | |
| 727 * on behalf of the programmer need to be returned to the | |
| 728 * operating system. For example, if the device allocated a | |
| 729 * font to be used as the system font, this font would be | |
| 730 * freed in <code>release</code>. Also,to assist the garbage | |
| 731 * collector and minimize the amount of memory that is not | |
| 732 * reclaimed when the programmer keeps a reference to a | |
| 733 * disposed device, all fields except the handle are zero'd. | |
| 734 * The handle is needed by <code>destroy</code>. | |
| 735 * </p> | |
| 736 * This method is called before <code>destroy</code>. | |
| 737 * </p><p> | |
| 738 * If subclasses reimplement this method, they must | |
| 739 * call the <code>super</code> implementation. | |
| 740 * </p> | |
| 741 * | |
| 742 * @see #dispose | |
| 743 * @see #destroy | |
| 744 */ | |
| 745 protected void release () { | |
| 19 | 746 if (shellHandle !is null) OS.gtk_widget_destroy(shellHandle); |
| 747 shellHandle = null; | |
| 18 | 748 |
| 19 | 749 if (gdkColors !is null) { |
| 750 auto colormap = OS.gdk_colormap_get_system(); | |
| 18 | 751 for (int i = 0; i < gdkColors.length; i++) { |
| 19 | 752 GdkColor* color = gdkColors [i]; |
| 753 if (color !is null) { | |
| 18 | 754 while (colorRefCount [i] > 0) { |
| 755 OS.gdk_colormap_free_colors(colormap, color, 1); | |
| 756 --colorRefCount [i]; | |
| 757 } | |
| 758 } | |
| 759 } | |
| 760 } | |
| 761 gdkColors = null; | |
| 762 colorRefCount = null; | |
| 763 COLOR_BLACK = COLOR_DARK_RED = COLOR_DARK_GREEN = COLOR_DARK_YELLOW = COLOR_DARK_BLUE = | |
| 764 COLOR_DARK_MAGENTA = COLOR_DARK_CYAN = COLOR_GRAY = COLOR_DARK_GRAY = COLOR_RED = | |
| 765 COLOR_GREEN = COLOR_YELLOW = COLOR_BLUE = COLOR_MAGENTA = COLOR_CYAN = COLOR_WHITE = null; | |
| 766 | |
| 19 | 767 if (emptyTab !is null ) OS.pango_tab_array_free(emptyTab); |
| 768 emptyTab = null; | |
| 18 | 769 |
| 770 /* Free the GTK error and warning handler */ | |
| 19 | 771 if (xDisplay !is null) { |
| 18 | 772 for (int i=0; i<handler_ids.length; i++) { |
| 19 | 773 if (handler_ids [i] !is 0 ) { |
| 774 OS.g_log_remove_handler (toStringz(log_domains [i]), handler_ids [i]); | |
| 18 | 775 handler_ids [i] = 0; |
| 776 } | |
| 777 } | |
| 19 | 778 //logCallback.dispose (); logCallback = null; |
| 18 | 779 handler_ids = null; log_domains = null; |
| 19 | 780 //logProcFld = 0; |
| 18 | 781 } |
| 782 } | |
| 783 | |
| 784 /** | |
| 785 * If the underlying window system supports printing warning messages | |
| 786 * to the console, setting warnings to <code>false</code> prevents these | |
| 787 * messages from being printed. If the argument is <code>true</code> then | |
| 788 * message printing is not blocked. | |
| 789 * | |
| 790 * @param warnings <code>true</code>if warnings should be printed, and <code>false</code> otherwise | |
| 791 * | |
| 792 * @exception SWTException <ul> | |
| 793 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 794 * </ul> | |
| 795 */ | |
| 19 | 796 public void setWarnings (bool warnings) { |
| 18 | 797 checkDevice (); |
| 798 if (warnings) { | |
| 54 | 799 if (--warningLevel is 0) { |
| 19 | 800 if (debugging) return; |
| 801 for (int i=0; i<handler_ids.length; i++) { | |
| 54 | 802 if (handler_ids [i] !is 0) { |
| 19 | 803 OS.g_log_remove_handler (toStringz(log_domains [i]), handler_ids [i]); |
| 804 handler_ids [i] = 0; | |
| 805 } | |
| 806 } | |
| 18 | 807 } |
| 808 } else { | |
| 54 | 809 if (warningLevel++ is 0) { |
| 19 | 810 if (debugging) return; |
| 811 int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; | |
| 812 for (int i=0; i<log_domains.length; i++) { | |
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813 handler_ids [i] = OS.g_log_set_handler (toStringz(log_domains [i]), flags, & logFunction, cast(void*)this ); |
| 19 | 814 } |
| 18 | 815 } |
| 816 } | |
| 817 } | |
| 818 | |
| 28 | 819 private static extern(C) int /*long*/ XErrorProcFunc (void* xDisplay, dwt.internal.gtk.OS.XErrorEvent* xErrorEvent) { |
| 18 | 820 Device device = findDevice (xDisplay); |
| 54 | 821 if (device !is null) { |
| 822 if (device.warningLevel is 0) { | |
| 19 | 823 if (DEBUG || device.debugging) { |
| 824 foreach( msg; new TracedException ("") ){ | |
| 825 Stderr.formatln( "trc {}", msg ); | |
| 826 } | |
| 18 | 827 } |
| 19 | 828 //PORTING_FIXME ?? |
| 829 //OS.Call (XErrorProc, xDisplay, xErrorEvent); | |
| 18 | 830 } |
| 831 } else { | |
| 19 | 832 if (DEBUG) (new SWTError ()).printStackTrace (); |
| 833 //PORTING_FIXME ?? | |
| 834 //OS.Call (XErrorProc, xDisplay, xErrorEvent); | |
| 18 | 835 } |
| 836 return 0; | |
| 837 } | |
| 838 | |
| 28 | 839 private static extern(C) int /*long*/ XIOErrorProcFunc (void* xDisplay) { |
| 18 | 840 Device device = findDevice (xDisplay); |
| 54 | 841 if (device !is null) { |
| 19 | 842 if (DEBUG || device.debugging) { |
| 843 foreach( msg; new TracedException ("") ){ | |
| 844 Stderr.formatln( "trc {}", msg ); | |
| 845 } | |
| 18 | 846 } |
| 847 } else { | |
| 19 | 848 if (DEBUG) { |
| 849 foreach( msg; new TracedException ("") ){ | |
| 850 Stderr.formatln( "trc {}", msg ); | |
| 851 } | |
| 852 } | |
| 18 | 853 } |
| 19 | 854 //PORTING_FIXME ?? |
| 855 //OS.Call (XIOErrorProc, xDisplay, 0); | |
| 18 | 856 return 0; |
| 857 } | |
| 858 | |
| 859 } |