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annotate org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/graphics/Device.d @ 125:c43718956f21 default tip
Updated the snippets status.
| author | Jacob Carlborg <doob@me.com> |
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| date | Thu, 11 Aug 2011 19:55:14 +0200 |
| parents | fb3aa8075988 |
| children |
| rev | line source |
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| 25 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 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 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module org.eclipse.swt.graphics.Device; | |
| 14 | |
| 15 import org.eclipse.swt.graphics.Color; | |
| 16 import org.eclipse.swt.graphics.Font; | |
| 17 import org.eclipse.swt.graphics.Drawable; | |
| 18 import org.eclipse.swt.graphics.DeviceData; | |
| 19 import org.eclipse.swt.graphics.Rectangle; | |
| 20 import org.eclipse.swt.graphics.FontData; | |
| 21 import org.eclipse.swt.graphics.Font; | |
| 22 import org.eclipse.swt.graphics.GCData; | |
| 23 import org.eclipse.swt.SWT; | |
| 24 import org.eclipse.swt.SWTError; | |
| 25 import org.eclipse.swt.internal.Compatibility; | |
| 26 import org.eclipse.swt.internal.gtk.OS; | |
| 27 import java.lang.all; | |
| 28 | |
| 29 | |
| 30 /** | |
| 31 * This class is the abstract superclass of all device objects, | |
| 32 * such as the Display device and the Printer device. Devices | |
| 33 * can have a graphics context (GC) created for them, and they | |
| 34 * can be drawn on by sending messages to the associated GC. | |
| 35 * | |
| 36 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
| 37 */ | |
| 38 public abstract class Device : Drawable { | |
| 39 /** | |
| 40 * the handle to the X Display | |
| 41 * (Warning: This field is platform dependent) | |
| 42 * <p> | |
| 43 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT | |
| 44 * public API. It is marked protected only so that it can be shared | |
| 45 * within the packages provided by SWT. It is not available on all | |
| 46 * platforms and should never be accessed from application code. | |
| 47 * </p> | |
| 48 */ | |
| 49 protected void* xDisplay; | |
| 50 GtkWidget* shellHandle; | |
| 51 | |
| 52 /* Debugging */ | |
| 53 public static bool DEBUG = true; | |
| 54 bool debugging; | |
| 55 bool tracking; | |
| 56 Exception [] errors; | |
| 57 Object [] objects; | |
| 58 Object trackingLock; | |
| 59 | |
| 60 /* Colormap and reference count */ | |
| 61 GdkColor *[] gdkColors; | |
| 62 int [] colorRefCount; | |
| 63 | |
| 64 /* Disposed flag */ | |
| 65 bool disposed; | |
| 66 | |
| 67 /* Warning and Error Handlers */ | |
| 68 //int /*long*/ logProcFld; | |
| 69 //GLogFunc logCallback; | |
| 70 //NOT DONE - get list of valid names | |
| 71 String [] log_domains = ["GLib-GObject"[], "GLib", "GObject", "Pango", "ATK", "GdkPixbuf", "Gdk", "Gtk", "GnomeVFS"]; | |
| 72 int [] handler_ids;// = new int [log_domains.length]; | |
| 73 int warningLevel; | |
| 74 | |
| 75 /* X Warning and Error Handlers */ | |
| 76 static extern(C) int function(void *) mXIOErrorHandler; | |
| 77 static extern(C) int function(void *, XErrorEvent *) mXErrorHandler; | |
| 78 //static int mXErrorCallback, mXIOErrorCallback; | |
| 79 | |
| 80 static int /*long*/ XErrorProc, XIOErrorProc, XNullErrorProc, XNullIOErrorProc; | |
| 81 static Device[] Devices; | |
| 82 | |
| 83 /* | |
| 84 * The following colors are listed in the Windows | |
| 85 * Programmer's Reference as the colors in the default | |
| 86 * palette. | |
| 87 */ | |
| 88 Color COLOR_BLACK, COLOR_DARK_RED, COLOR_DARK_GREEN, COLOR_DARK_YELLOW, COLOR_DARK_BLUE; | |
| 89 Color COLOR_DARK_MAGENTA, COLOR_DARK_CYAN, COLOR_GRAY, COLOR_DARK_GRAY, COLOR_RED; | |
| 90 Color COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE; | |
| 91 | |
| 92 /* System Font */ | |
| 93 Font systemFont; | |
| 94 | |
| 95 PangoTabArray* emptyTab; | |
| 96 | |
| 97 bool useXRender; | |
| 98 | |
| 99 static bool CAIRO_LOADED; | |
| 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 | |
| 116 //synchronized static void static_this(){ | |
| 117 // CREATE_LOCK = new Object(); | |
| 118 // Devices = new Device[4]; | |
| 119 //} | |
| 120 /* | |
| 121 * TEMPORARY CODE. | |
| 122 */ | |
|
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123 static Device getDevice () { |
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124 synchronized { |
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125 if (DeviceFinder !is null) DeviceFinder.run(); |
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126 Device device = CurrentDevice; |
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127 CurrentDevice = null; |
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128 return device; |
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129 } |
| 25 | 130 } |
| 131 | |
| 132 /** | |
| 133 * Constructs a new instance of this class. | |
| 134 * <p> | |
| 135 * You must dispose the device when it is no longer required. | |
| 136 * </p> | |
| 137 * | |
| 138 * @see #create | |
| 139 * @see #init | |
| 140 * | |
| 141 * @since 3.1 | |
| 142 */ | |
| 143 public this() { | |
| 144 this(null); | |
| 145 } | |
| 146 | |
| 147 /** | |
| 148 * Constructs a new instance of this class. | |
| 149 * <p> | |
| 150 * You must dispose the device when it is no longer required. | |
| 151 * </p> | |
| 152 * | |
| 153 * @param data the DeviceData which describes the receiver | |
| 154 * | |
| 155 * @see #create | |
| 156 * @see #init | |
| 157 * @see DeviceData | |
| 158 */ | |
| 159 public this(DeviceData data) { | |
| 160 handler_ids = new int [log_domains.length]; | |
| 161 debugging = DEBUG; | |
| 162 tracking = DEBUG; | |
| 163 | |
| 164 synchronized ( this.classinfo ) { | |
| 165 if (data !is null) { | |
| 166 debugging = data.debugging; | |
| 167 tracking = data.tracking; | |
| 168 } | |
| 169 if (tracking) { | |
| 170 errors = new Exception [128]; | |
| 171 objects = new Object [128]; | |
| 172 trackingLock = new Object (); | |
| 173 } | |
| 174 create (data); | |
| 175 init_ (); | |
| 176 register (this); | |
| 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 synchronized (Device.classinfo) { | |
| 236 if (isDisposed()) return; | |
| 237 checkDevice (); | |
| 238 release (); | |
| 239 destroy (); | |
| 240 deregister (this); | |
| 241 xDisplay = null; | |
| 242 disposed = true; | |
| 243 if (tracking) { | |
| 244 synchronized (trackingLock) { | |
| 245 objects = null; | |
| 246 errors = null; | |
| 247 trackingLock = null; | |
| 248 } | |
| 249 } | |
| 250 } | |
| 251 } | |
| 252 | |
| 253 void dispose_Object (Object object) { | |
| 254 synchronized (trackingLock) { | |
| 255 for (int i=0; i<objects.length; i++) { | |
| 256 if (objects [i] is object) { | |
| 257 objects [i] = null; | |
| 258 errors [i] = null; | |
| 259 return; | |
| 260 } | |
| 261 } | |
| 262 } | |
| 263 } | |
| 264 | |
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265 static Device findDevice (void* xDisplay) { |
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266 synchronized { |
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267 for (int i=0; i<Devices.length; i++) { |
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268 Device device = Devices [i]; |
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269 if (device !is null && device.xDisplay is xDisplay) { |
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270 return device; |
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271 } |
| 25 | 272 } |
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273 return null; |
| 25 | 274 } |
| 275 } | |
| 276 | |
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277 static void deregister (Device device) { |
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278 synchronized { |
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279 for (int i=0; i<Devices.length; i++) { |
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280 if (device is Devices [i]) Devices [i] = null; |
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281 } |
| 25 | 282 } |
| 283 } | |
| 284 | |
| 285 /** | |
| 286 * Destroys the device in the operating system and releases | |
| 287 * the device's handle. If the device does not have a handle, | |
| 288 * this method may do nothing depending on the device. | |
| 289 * <p> | |
| 290 * This method is called after <code>release</code>. | |
| 291 * </p><p> | |
| 292 * Subclasses are supposed to reimplement this method and not | |
| 293 * call the <code>super</code> implementation. | |
| 294 * </p> | |
| 295 * | |
| 296 * @see #dispose | |
| 297 * @see #release | |
| 298 */ | |
| 299 protected void destroy () { | |
| 300 } | |
| 301 | |
| 302 /** | |
| 303 * Returns a rectangle describing the receiver's size and location. | |
| 304 * | |
| 305 * @return the bounding rectangle | |
| 306 * | |
| 307 * @exception SWTException <ul> | |
| 308 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 309 * </ul> | |
| 310 */ | |
| 311 public Rectangle getBounds () { | |
| 312 checkDevice (); | |
| 313 return new Rectangle(0, 0, 0, 0); | |
| 314 } | |
| 315 | |
| 316 /** | |
| 317 * Returns a <code>DeviceData</code> based on the receiver. | |
| 318 * Modifications made to this <code>DeviceData</code> will not | |
| 319 * affect the receiver. | |
| 320 * | |
| 321 * @return a <code>DeviceData</code> containing the device's data and attributes | |
| 322 * | |
| 323 * @exception SWTException <ul> | |
| 324 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 325 * </ul> | |
| 326 * | |
| 327 * @see DeviceData | |
| 328 */ | |
| 329 public DeviceData getDeviceData () { | |
| 330 checkDevice(); | |
| 331 DeviceData data = new DeviceData (); | |
| 332 data.debugging = debugging; | |
| 333 data.tracking = tracking; | |
| 334 if (tracking) { | |
| 335 synchronized (trackingLock) { | |
| 336 int count = 0, length = objects.length; | |
| 337 for (int i=0; i<length; i++) { | |
| 338 if (objects [i] !is null) count++; | |
| 339 } | |
| 340 int index = 0; | |
| 341 data.objects = new Object [count]; | |
| 342 data.errors = new Exception [count]; | |
| 343 for (int i=0; i<length; i++) { | |
| 344 if (objects [i] !is null) { | |
| 345 data.objects [index] = objects [i]; | |
| 346 data.errors [index] = errors [i]; | |
| 347 index++; | |
| 348 } | |
| 349 } | |
| 350 } | |
| 351 } else { | |
| 352 data.objects = null; | |
| 353 data.errors = null; | |
| 354 } | |
| 355 return data; | |
| 356 } | |
| 357 | |
| 358 /** | |
| 359 * Returns a rectangle which describes the area of the | |
| 360 * receiver which is capable of displaying data. | |
| 361 * | |
| 362 * @return the client area | |
| 363 * | |
| 364 * @exception SWTException <ul> | |
| 365 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 366 * </ul> | |
| 367 * | |
| 368 * @see #getBounds | |
| 369 */ | |
| 370 public Rectangle getClientArea () { | |
| 371 checkDevice (); | |
| 372 return getBounds (); | |
| 373 } | |
| 374 | |
| 375 /** | |
| 376 * Returns the bit depth of the screen, which is the number of | |
| 377 * bits it takes to represent the number of unique colors that | |
| 378 * the screen is currently capable of displaying. This number | |
| 379 * will typically be one of 1, 8, 15, 16, 24 or 32. | |
| 380 * | |
| 381 * @return the depth of the screen | |
| 382 * | |
| 383 * @exception SWTException <ul> | |
| 384 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 385 * </ul> | |
| 386 */ | |
| 387 public int getDepth () { | |
| 388 checkDevice (); | |
| 389 return 0; | |
| 390 } | |
| 391 | |
| 392 /** | |
| 393 * Returns a point whose x coordinate is the horizontal | |
| 394 * dots per inch of the display, and whose y coordinate | |
| 395 * is the vertical dots per inch of the display. | |
| 396 * | |
| 397 * @return the horizontal and vertical DPI | |
| 398 * | |
| 399 * @exception SWTException <ul> | |
| 400 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 401 * </ul> | |
| 402 */ | |
| 403 public Point getDPI () { | |
| 404 checkDevice (); | |
| 405 return new Point (72, 72); | |
| 406 } | |
| 407 | |
| 408 /** | |
| 409 * Returns <code>FontData</code> objects which describe | |
| 410 * the fonts that match the given arguments. If the | |
| 411 * <code>faceName</code> is null, all fonts will be returned. | |
| 412 * | |
| 413 * @param faceName the name of the font to look for, or null | |
| 414 * @param scalable if true only scalable fonts are returned, otherwise only non-scalable fonts are returned. | |
| 415 * @return the matching font data | |
| 416 * | |
| 417 * @exception SWTException <ul> | |
| 418 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 419 * </ul> | |
| 420 */ | |
| 421 public FontData[] getFontList (String faceName, bool scalable) { | |
| 422 checkDevice (); | |
| 423 if (!scalable) return new FontData[0]; | |
| 424 PangoFontFamily* family; | |
| 425 PangoFontFace * face; | |
| 426 PangoFontFamily** families; | |
| 427 int n_families; | |
| 428 PangoFontFace ** faces; | |
| 429 int n_faces; | |
| 430 auto context = OS.gdk_pango_context_get(); | |
| 431 OS.pango_context_list_families(context, &families, &n_families); | |
| 432 int nFds = 0; | |
| 433 FontData[] fds = new FontData[faceName !is null ? 4 : n_families]; | |
| 434 for (int i=0; i<n_families; i++) { | |
| 435 family = families[i]; | |
| 436 bool match = true; | |
| 437 if (faceName !is null) { | |
| 438 auto familyName = OS.pango_font_family_get_name(family); | |
| 439 match = Compatibility.equalsIgnoreCase(faceName, fromStringz( familyName )); | |
| 440 } | |
| 441 if (match) { | |
| 442 OS.pango_font_family_list_faces(family, &faces, &n_faces); | |
| 443 for (int j=0; j<n_faces; j++) { | |
| 444 face = faces[j]; | |
| 445 auto fontDesc = OS.pango_font_face_describe(face); | |
| 446 Font font = Font.gtk_new(this, fontDesc); | |
| 447 FontData data = font.getFontData()[0]; | |
| 448 if (nFds is fds.length) { | |
| 449 FontData[] newFds = new FontData[fds.length + n_families]; | |
| 450 System.arraycopy(fds, 0, newFds, 0, nFds); | |
| 451 fds = newFds; | |
| 452 } | |
| 453 fds[nFds++] = data; | |
| 454 OS.pango_font_description_free(fontDesc); | |
| 455 } | |
| 456 OS.g_free(faces); | |
| 457 if (faceName !is null) break; | |
| 458 } | |
| 459 } | |
| 460 OS.g_free(families); | |
| 461 OS.g_object_unref(context); | |
| 462 if (nFds is fds.length) return fds; | |
| 463 FontData[] result = new FontData[nFds]; | |
| 464 System.arraycopy(fds, 0, result, 0, nFds); | |
| 465 return result; | |
| 466 } | |
| 467 | |
| 468 /** | |
| 469 * Returns the matching standard color for the given | |
| 470 * constant, which should be one of the color constants | |
| 471 * specified in class <code>SWT</code>. Any value other | |
| 472 * than one of the SWT color constants which is passed | |
| 473 * in will result in the color black. This color should | |
| 474 * not be freed because it was allocated by the system, | |
| 475 * not the application. | |
| 476 * | |
| 477 * @param id the color constant | |
| 478 * @return the matching color | |
| 479 * | |
| 480 * @exception SWTException <ul> | |
| 481 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 482 * </ul> | |
| 483 * | |
| 484 * @see SWT | |
| 485 */ | |
| 486 public Color getSystemColor (int id) { | |
| 487 checkDevice (); | |
| 488 switch (id) { | |
| 489 case SWT.COLOR_BLACK: return COLOR_BLACK; | |
| 490 case SWT.COLOR_DARK_RED: return COLOR_DARK_RED; | |
| 491 case SWT.COLOR_DARK_GREEN: return COLOR_DARK_GREEN; | |
| 492 case SWT.COLOR_DARK_YELLOW: return COLOR_DARK_YELLOW; | |
| 493 case SWT.COLOR_DARK_BLUE: return COLOR_DARK_BLUE; | |
| 494 case SWT.COLOR_DARK_MAGENTA: return COLOR_DARK_MAGENTA; | |
| 495 case SWT.COLOR_DARK_CYAN: return COLOR_DARK_CYAN; | |
| 496 case SWT.COLOR_GRAY: return COLOR_GRAY; | |
| 497 case SWT.COLOR_DARK_GRAY: return COLOR_DARK_GRAY; | |
| 498 case SWT.COLOR_RED: return COLOR_RED; | |
| 499 case SWT.COLOR_GREEN: return COLOR_GREEN; | |
| 500 case SWT.COLOR_YELLOW: return COLOR_YELLOW; | |
| 501 case SWT.COLOR_BLUE: return COLOR_BLUE; | |
| 502 case SWT.COLOR_MAGENTA: return COLOR_MAGENTA; | |
| 503 case SWT.COLOR_CYAN: return COLOR_CYAN; | |
| 504 case SWT.COLOR_WHITE: return COLOR_WHITE; | |
| 505 default: | |
| 506 } | |
| 507 return COLOR_BLACK; | |
| 508 } | |
| 509 | |
| 510 /** | |
| 511 * Returns a reasonable font for applications to use. | |
| 512 * On some platforms, this will match the "default font" | |
| 513 * or "system font" if such can be found. This font | |
| 514 * should not be freed because it was allocated by the | |
| 515 * system, not the application. | |
| 516 * <p> | |
| 517 * Typically, applications which want the default look | |
| 518 * should simply not set the font on the widgets they | |
| 519 * create. Widgets are always created with the correct | |
| 520 * default font for the class of user-interface component | |
| 521 * they represent. | |
| 522 * </p> | |
| 523 * | |
| 524 * @return a font | |
| 525 * | |
| 526 * @exception SWTException <ul> | |
| 527 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 528 * </ul> | |
| 529 */ | |
| 530 public Font getSystemFont () { | |
| 531 checkDevice (); | |
| 532 return systemFont; | |
| 533 } | |
| 534 | |
| 535 /** | |
| 536 * Returns <code>true</code> if the underlying window system prints out | |
| 537 * warning messages on the console, and <code>setWarnings</code> | |
| 538 * had previously been called with <code>true</code>. | |
| 539 * | |
| 540 * @return <code>true</code>if warnings are being handled, and <code>false</code> otherwise | |
| 541 * | |
| 542 * @exception SWTException <ul> | |
| 543 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 544 * </ul> | |
| 545 */ | |
| 546 public bool getWarnings () { | |
| 547 checkDevice (); | |
| 548 return warningLevel is 0; | |
| 549 } | |
| 550 | |
| 551 /** | |
| 552 * Initializes any internal resources needed by the | |
| 553 * device. | |
| 554 * <p> | |
| 555 * This method is called after <code>create</code>. | |
| 556 * </p><p> | |
| 557 * If subclasses reimplement this method, they must | |
| 558 * call the <code>super</code> implementation. | |
| 559 * </p> | |
| 560 * | |
| 561 * @see #create | |
| 562 */ | |
| 563 protected void init_ () { | |
| 564 if (xDisplay !is null) { | |
| 565 int event_basep, error_basep; | |
| 566 if (OS.XRenderQueryExtension (xDisplay, &event_basep, &error_basep)) { | |
| 567 int major_version, minor_version; | |
| 568 OS.XRenderQueryVersion (xDisplay, &major_version, &minor_version); | |
| 569 useXRender = major_version > 0 || (major_version is 0 && minor_version >= 8); | |
| 570 } | |
| 571 } | |
| 572 | |
| 573 if (debugging) { | |
| 574 if (xDisplay !is null) { | |
| 575 /* Create the warning and error callbacks */ | |
| 576 synchronized (this.classinfo) { | |
| 577 int index = 0; | |
| 578 while (index < Devices.length) { | |
| 579 if (Devices [index] !is null) break; | |
| 580 index++; | |
| 581 } | |
| 582 if (index is Devices.length) { | |
| 583 OS.XSetErrorHandler ( & XErrorProcFunc ); | |
| 584 OS.XSetIOErrorHandler ( & XIOErrorProcFunc ); | |
| 585 } | |
| 586 } | |
| 587 OS.XSynchronize (xDisplay, true); | |
| 588 } | |
| 589 } | |
| 590 | |
| 591 /* Create GTK warnings and error callbacks */ | |
| 592 if (xDisplay !is null) { | |
| 593 /* Set GTK warning and error handlers */ | |
| 594 if (debugging) { | |
| 595 int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; | |
| 596 for (int i=0; i<log_domains.length; i++) { | |
| 597 handler_ids [i] = OS.g_log_set_handler (log_domains [i].toStringzValidPtr(), flags, & logFunction, cast(void*)this); | |
| 598 } | |
| 599 } | |
| 600 } | |
| 601 | |
| 602 /* Create the standard colors */ | |
| 603 COLOR_BLACK = new Color (this, 0,0,0); | |
| 604 COLOR_DARK_RED = new Color (this, 0x80,0,0); | |
| 605 COLOR_DARK_GREEN = new Color (this, 0,0x80,0); | |
| 606 COLOR_DARK_YELLOW = new Color (this, 0x80,0x80,0); | |
| 607 COLOR_DARK_BLUE = new Color (this, 0,0,0x80); | |
| 608 COLOR_DARK_MAGENTA = new Color (this, 0x80,0,0x80); | |
| 609 COLOR_DARK_CYAN = new Color (this, 0,0x80,0x80); | |
| 610 COLOR_GRAY = new Color (this, 0xC0,0xC0,0xC0); | |
| 611 COLOR_DARK_GRAY = new Color (this, 0x80,0x80,0x80); | |
| 612 COLOR_RED = new Color (this, 0xFF,0,0); | |
| 613 COLOR_GREEN = new Color (this, 0,0xFF,0); | |
| 614 COLOR_YELLOW = new Color (this, 0xFF,0xFF,0); | |
| 615 COLOR_BLUE = new Color (this, 0,0,0xFF); | |
| 616 COLOR_MAGENTA = new Color (this, 0xFF,0,0xFF); | |
| 617 COLOR_CYAN = new Color (this, 0,0xFF,0xFF); | |
| 618 COLOR_WHITE = new Color (this, 0xFF,0xFF,0xFF); | |
| 619 | |
| 620 emptyTab = OS.pango_tab_array_new(1, false); | |
| 621 if (emptyTab is null) SWT.error(SWT.ERROR_NO_HANDLES); | |
| 622 OS.pango_tab_array_set_tab(emptyTab, 0, OS.PANGO_TAB_LEFT, 1); | |
| 623 | |
| 624 shellHandle = OS.gtk_window_new(OS.GTK_WINDOW_TOPLEVEL); | |
| 625 if (shellHandle is null) SWT.error(SWT.ERROR_NO_HANDLES); | |
| 626 OS.gtk_widget_realize(shellHandle); | |
| 627 | |
| 628 /* Initialize the system font slot */ | |
| 629 systemFont = getSystemFont (); | |
| 630 } | |
| 631 | |
| 632 /** | |
| 633 * Invokes platform specific functionality to allocate a new GC handle. | |
| 634 * <p> | |
| 635 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 636 * API for <code>Device</code>. It is marked public only so that it | |
| 637 * can be shared within the packages provided by SWT. It is not | |
| 638 * available on all platforms, and should never be called from | |
| 639 * application code. | |
| 640 * </p> | |
| 641 * | |
| 642 * @param data the platform specific GC data | |
| 643 * @return the platform specific GC handle | |
| 644 */ | |
| 645 public abstract GdkGC* internal_new_GC (GCData data); | |
| 646 | |
| 647 /** | |
| 648 * Invokes platform specific functionality to dispose a GC handle. | |
| 649 * <p> | |
| 650 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 651 * API for <code>Device</code>. It is marked public only so that it | |
| 652 * can be shared within the packages provided by SWT. It is not | |
| 653 * available on all platforms, and should never be called from | |
| 654 * application code. | |
| 655 * </p> | |
| 656 * | |
| 657 * @param hDC the platform specific GC handle | |
| 658 * @param data the platform specific GC data | |
| 659 */ | |
| 660 public abstract void internal_dispose_GC (GdkGC* handle, GCData data); | |
| 661 | |
| 662 /** | |
| 663 * Returns <code>true</code> if the device has been disposed, | |
| 664 * and <code>false</code> otherwise. | |
| 665 * <p> | |
| 666 * This method gets the dispose state for the device. | |
| 667 * When a device has been disposed, it is an error to | |
| 668 * invoke any other method using the device. | |
| 669 * | |
| 670 * @return <code>true</code> when the device is disposed and <code>false</code> otherwise | |
| 671 */ | |
| 672 public bool isDisposed () { | |
| 673 synchronized (Device.classinfo) { | |
| 674 return disposed; | |
| 675 } | |
| 676 } | |
| 677 | |
| 678 /** | |
| 679 * Loads the font specified by a file. The font will be | |
| 680 * present in the list of fonts available to the application. | |
| 681 * | |
| 682 * @param path the font file path | |
| 683 * @return whether the font was successfully loaded | |
| 684 * | |
| 685 * @exception SWTException <ul> | |
| 686 * <li>ERROR_NULL_ARGUMENT - if path is null</li> | |
| 687 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 688 * </ul> | |
| 689 * | |
| 690 * @see Font | |
| 691 * | |
| 692 * @since 3.3 | |
| 693 */ | |
| 694 public bool loadFont (String path) { | |
| 695 checkDevice(); | |
| 696 if (path is null) SWT.error (SWT.ERROR_NULL_ARGUMENT); | |
| 697 return cast(bool) OS.FcConfigAppFontAddFile (null, path.toStringzValidPtr()); | |
| 698 } | |
| 699 | |
| 700 private static extern(C) void logFunction (char* log_domain, int log_level, char* message, void* user_data) { | |
| 701 Device dev = cast(Device)user_data; | |
| 702 if (dev.warningLevel is 0) { | |
| 703 if (DEBUG || dev.debugging) { | |
| 704 ExceptionPrintStackTrace(new Exception ("")); | |
| 705 } | |
| 706 OS.g_log_default_handler (log_domain, log_level, message, user_data); | |
| 707 } | |
|
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708 return; |
| 25 | 709 } |
| 710 | |
| 711 void new_Object (Object object) { | |
| 712 synchronized (trackingLock) { | |
| 713 for (int i=0; i<objects.length; i++) { | |
| 714 if (objects [i] is null) { | |
| 715 objects [i] = object; | |
| 716 errors [i] = new Exception (""); | |
| 717 return; | |
| 718 } | |
| 719 } | |
| 720 Object [] newObjects = new Object [objects.length + 128]; | |
| 721 System.arraycopy (objects, 0, newObjects, 0, objects.length); | |
| 722 newObjects [objects.length] = object; | |
| 723 objects = newObjects; | |
| 724 Exception [] newErrors = new Exception [errors.length + 128]; | |
| 725 System.arraycopy (errors, 0, newErrors, 0, errors.length); | |
| 726 newErrors [errors.length] = new Exception (""); | |
| 727 errors = newErrors; | |
| 728 } | |
| 729 } | |
| 730 | |
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731 static void register (Device device) { |
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732 synchronized { |
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733 for (int i=0; i<Devices.length; i++) { |
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734 if (Devices [i] is null) { |
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735 Devices [i] = device; |
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736 return; |
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737 } |
| 25 | 738 } |
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739 Device [] newDevices = new Device [Devices.length + 4]; |
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740 System.arraycopy (Devices, 0, newDevices, 0, Devices.length); |
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741 newDevices [Devices.length] = device; |
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742 Devices = newDevices; |
| 25 | 743 } |
| 744 } | |
| 745 | |
| 746 /** | |
| 747 * Releases any internal resources back to the operating | |
| 748 * system and clears all fields except the device handle. | |
| 749 * <p> | |
| 750 * When a device is destroyed, resources that were acquired | |
| 751 * on behalf of the programmer need to be returned to the | |
| 752 * operating system. For example, if the device allocated a | |
| 753 * font to be used as the system font, this font would be | |
| 754 * freed in <code>release</code>. Also,to assist the garbage | |
| 755 * collector and minimize the amount of memory that is not | |
| 756 * reclaimed when the programmer keeps a reference to a | |
| 757 * disposed device, all fields except the handle are zero'd. | |
| 758 * The handle is needed by <code>destroy</code>. | |
| 759 * </p> | |
| 760 * This method is called before <code>destroy</code>. | |
| 761 * </p><p> | |
| 762 * If subclasses reimplement this method, they must | |
| 763 * call the <code>super</code> implementation. | |
| 764 * </p> | |
| 765 * | |
| 766 * @see #dispose | |
| 767 * @see #destroy | |
| 768 */ | |
| 769 protected void release () { | |
| 770 if (shellHandle !is null) OS.gtk_widget_destroy(shellHandle); | |
| 771 shellHandle = null; | |
| 772 | |
| 773 if (gdkColors !is null) { | |
| 774 auto colormap = OS.gdk_colormap_get_system(); | |
| 775 for (int i = 0; i < gdkColors.length; i++) { | |
| 776 GdkColor* color = gdkColors [i]; | |
| 777 if (color !is null) { | |
| 778 while (colorRefCount [i] > 0) { | |
| 779 OS.gdk_colormap_free_colors(colormap, color, 1); | |
| 780 --colorRefCount [i]; | |
| 781 } | |
| 782 } | |
| 783 } | |
| 784 } | |
| 785 gdkColors = null; | |
| 786 colorRefCount = null; | |
| 787 COLOR_BLACK = COLOR_DARK_RED = COLOR_DARK_GREEN = COLOR_DARK_YELLOW = COLOR_DARK_BLUE = | |
| 788 COLOR_DARK_MAGENTA = COLOR_DARK_CYAN = COLOR_GRAY = COLOR_DARK_GRAY = COLOR_RED = | |
| 789 COLOR_GREEN = COLOR_YELLOW = COLOR_BLUE = COLOR_MAGENTA = COLOR_CYAN = COLOR_WHITE = null; | |
| 790 | |
| 791 if (emptyTab !is null ) OS.pango_tab_array_free(emptyTab); | |
| 792 emptyTab = null; | |
| 793 | |
| 794 /* Free the GTK error and warning handler */ | |
| 795 if (xDisplay !is null) { | |
| 796 for (int i=0; i<handler_ids.length; i++) { | |
| 797 if (handler_ids [i] !is 0 ) { | |
| 798 OS.g_log_remove_handler (log_domains [i].toStringzValidPtr(), handler_ids [i]); | |
| 799 handler_ids [i] = 0; | |
| 800 } | |
| 801 } | |
| 802 //logCallback.dispose (); logCallback = null; | |
| 803 handler_ids = null; log_domains = null; | |
| 804 //logProcFld = 0; | |
| 805 } | |
| 806 } | |
| 807 | |
| 808 /** | |
| 809 * If the underlying window system supports printing warning messages | |
| 810 * to the console, setting warnings to <code>false</code> prevents these | |
| 811 * messages from being printed. If the argument is <code>true</code> then | |
| 812 * message printing is not blocked. | |
| 813 * | |
| 814 * @param warnings <code>true</code>if warnings should be printed, and <code>false</code> otherwise | |
| 815 * | |
| 816 * @exception SWTException <ul> | |
| 817 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 818 * </ul> | |
| 819 */ | |
| 820 public void setWarnings (bool warnings) { | |
| 821 checkDevice (); | |
| 822 if (warnings) { | |
| 823 if (--warningLevel is 0) { | |
| 824 if (debugging) return; | |
| 825 for (int i=0; i<handler_ids.length; i++) { | |
| 826 if (handler_ids [i] !is 0) { | |
| 827 OS.g_log_remove_handler (log_domains [i].toStringzValidPtr(), handler_ids [i]); | |
| 828 handler_ids [i] = 0; | |
| 829 } | |
| 830 } | |
| 831 } | |
| 832 } else { | |
| 833 if (warningLevel++ is 0) { | |
| 834 if (debugging) return; | |
| 835 int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; | |
| 836 for (int i=0; i<log_domains.length; i++) { | |
| 837 handler_ids [i] = OS.g_log_set_handler (log_domains [i].toStringzValidPtr(), flags, & logFunction, cast(void*)this ); | |
| 838 } | |
| 839 } | |
| 840 } | |
| 841 } | |
| 842 | |
| 843 private static extern(C) int /*long*/ XErrorProcFunc (void* xDisplay, org.eclipse.swt.internal.gtk.OS.XErrorEvent* xErrorEvent) { | |
| 844 Device device = findDevice (xDisplay); | |
| 845 if (device !is null) { | |
| 846 if (device.warningLevel is 0) { | |
| 847 if (DEBUG || device.debugging) { | |
| 848 foreach( msg; (new Exception ("")).info ){ | |
| 849 getDwtLogger().error( __FILE__, __LINE__, "{}", msg ); | |
| 850 } | |
| 851 } | |
| 852 //PORTING_FIXME ?? | |
| 853 //OS.Call (XErrorProc, xDisplay, xErrorEvent); | |
| 854 } | |
| 855 } else { | |
| 856 if (DEBUG) (new SWTError ()).printStackTrace (); | |
| 857 //PORTING_FIXME ?? | |
| 858 //OS.Call (XErrorProc, xDisplay, xErrorEvent); | |
| 859 } | |
| 860 return 0; | |
| 861 } | |
| 862 | |
| 863 private static extern(C) int /*long*/ XIOErrorProcFunc (void* xDisplay) { | |
| 864 Device device = findDevice (xDisplay); | |
| 865 if (device !is null) { | |
| 866 if (DEBUG || device.debugging) { | |
| 867 foreach( msg; (new Exception ("")).info ){ | |
| 868 getDwtLogger().error( __FILE__, __LINE__, "trc {}", msg ); | |
| 869 } | |
| 870 } | |
| 871 } else { | |
| 872 if (DEBUG) { | |
| 873 foreach( msg; (new Exception ("")).info ){ | |
| 874 getDwtLogger().error( __FILE__, __LINE__, "{}", msg ); | |
| 875 } | |
| 876 } | |
| 877 } | |
| 878 //PORTING_FIXME ?? | |
| 879 //OS.Call (XIOErrorProc, xDisplay, 0); | |
| 880 return 0; | |
| 881 } | |
| 882 | |
| 883 } |