Mercurial > projects > dwt-linux
annotate dwt/printing/Printer.d @ 150:f2e04420fd6c
reworked overrides and superclass aliases
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 31 Jan 2008 19:04:56 +0100 |
| parents | 52b32f5cb1e0 |
| children | 17f8449522fd |
| rev | line source |
|---|---|
|
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1 /******************************************************************************* |
| 91 | 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 | |
| 108 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 91 | 12 *******************************************************************************/ |
| 13 module dwt.printing.Printer; | |
| 14 | |
| 15 | |
| 16 | |
| 17 import dwt.DWT; | |
| 18 import dwt.DWTError; | |
| 19 import dwt.DWTException; | |
| 20 import dwt.graphics.Device; | |
| 21 import dwt.graphics.DeviceData; | |
| 22 import dwt.graphics.Font; | |
| 23 import dwt.graphics.GCData; | |
| 24 import dwt.graphics.Point; | |
| 25 import dwt.graphics.Rectangle; | |
| 26 import dwt.internal.cairo.Cairo; | |
| 27 import dwt.internal.gtk.OS; | |
| 28 import dwt.printing.PrinterData; | |
| 29 | |
| 30 static import tango.stdc.stringz; | |
| 31 static import tango.io.Stdout; | |
| 32 import tango.util.Convert; | |
| 33 | |
| 34 | |
| 35 /** | |
| 36 * Instances of this class are used to print to a printer. | |
| 37 * Applications create a GC on a printer using <code>new GC(printer)</code> | |
| 38 * and then draw on the printer GC using the usual graphics calls. | |
| 39 * <p> | |
| 40 * A <code>Printer</code> object may be constructed by providing | |
| 41 * a <code>PrinterData</code> object which identifies the printer. | |
| 42 * A <code>PrintDialog</code> presents a print dialog to the user | |
| 43 * and returns an initialized instance of <code>PrinterData</code>. | |
| 44 * Alternatively, calling <code>new Printer()</code> will construct a | |
| 45 * printer object for the user's default printer. | |
| 46 * </p><p> | |
| 47 * Application code must explicitly invoke the <code>Printer.dispose()</code> | |
| 48 * method to release the operating system resources managed by each instance | |
| 49 * when those instances are no longer required. | |
| 50 * </p> | |
| 51 * | |
| 52 * @see PrinterData | |
| 53 * @see PrintDialog | |
| 54 */ | |
| 55 public final class Printer : Device { | |
| 56 static PrinterData [] printerList; | |
| 57 | |
| 58 PrinterData data; | |
| 59 GtkPrinter* printer; | |
| 60 GtkPrintJob* printJob; | |
| 61 GtkPrintSettings* settings; | |
| 62 void* pageSetup; | |
| 63 cairo_surface_t* surface; | |
| 64 cairo_t* cairo; | |
| 65 | |
| 66 /** | |
| 67 * whether or not a GC was created for this printer | |
| 68 */ | |
| 69 bool isGCCreated = false; | |
| 70 Font systemFont; | |
| 71 | |
| 72 char[] settingsData; | |
| 73 int start, end; | |
| 74 | |
| 75 static const char[] GTK_LPR_BACKEND = "GtkPrintBackendLpr"; //$NON-NLS-1$ | |
| 76 | |
| 77 /** | |
| 78 * Returns an array of <code>PrinterData</code> objects | |
| 79 * representing all available printers. | |
| 80 * | |
| 81 * @return the list of available printers | |
| 82 */ | |
| 83 public static PrinterData[] getPrinterList() { | |
| 84 printerList = new PrinterData [0]; | |
| 85 if (OS.GTK_VERSION < OS.buildVERSION (2, 10, 0)) { | |
| 86 return printerList; | |
| 87 } | |
| 88 OS.gtk_enumerate_printers(&GtkPrinterFunc_List, null, null, true); | |
| 89 return printerList; | |
| 90 } | |
| 91 | |
| 92 private static extern(C) int GtkPrinterFunc_List (GtkPrinter* printer, void* user_data) { | |
| 93 int length_ = printerList.length; | |
| 94 PrinterData [] newList = new PrinterData [length_ + 1]; | |
| 95 System.arraycopy (printerList, 0, newList, 0, length_); | |
| 96 printerList = newList; | |
| 97 printerList [length_] = printerDataFromGtkPrinter(printer); | |
| 98 /* | |
| 99 * Bug in GTK. While performing a gtk_enumerate_printers(), GTK finds all of the | |
| 100 * available printers from each backend and can hang. If a backend requires more | |
| 101 * time to gather printer info, GTK will start an event loop waiting for a done | |
| 102 * signal before continuing. For the Lpr backend, GTK does not send a done signal | |
| 103 * which means the event loop never ends. The fix is to check to see if the driver | |
| 104 * is of type Lpr, and stop the enumeration, which exits the event loop. | |
| 105 */ | |
| 106 if (printerList[length_].driver ==/*eq*/ GTK_LPR_BACKEND) return 1; | |
| 107 return 0; | |
| 108 } | |
| 109 | |
| 110 /** | |
| 111 * Returns a <code>PrinterData</code> object representing | |
| 112 * the default printer or <code>null</code> if there is no | |
| 113 * printer available on the System. | |
| 114 * | |
| 115 * @return the default printer data or null | |
| 116 * | |
| 117 * @since 2.1 | |
| 118 */ | |
| 119 public static PrinterData getDefaultPrinterData() { | |
| 120 printerList = new PrinterData [1]; | |
| 121 if (OS.GTK_VERSION < OS.buildVERSION (2, 10, 0)) { | |
| 122 return null; | |
| 123 } | |
| 124 OS.gtk_enumerate_printers(&GtkPrinterFunc_Default, null, null, true); | |
| 125 return printerList[0]; | |
| 126 } | |
| 127 | |
| 128 private static extern(C) int GtkPrinterFunc_Default (GtkPrinter* printer, void* user_data) { | |
| 129 if (OS.gtk_printer_is_default(printer)) { | |
| 130 printerList[0] = printerDataFromGtkPrinter(printer); | |
| 131 return 1; | |
| 132 } | |
| 133 return 0; | |
| 134 } | |
| 135 | |
| 136 GtkPrinter* gtkPrinterFromPrinterData() { | |
| 137 printer = null; | |
| 138 OS.gtk_enumerate_printers(&GtkPrinterFunc_FindNamedPrinterFunc, cast(void*)this, null, true); | |
| 139 return printer; | |
| 140 } | |
| 141 | |
| 142 private static extern(C) int GtkPrinterFunc_FindNamedPrinterFunc (GtkPrinter* printer, void* user_data) { | |
| 143 return (cast(Printer)user_data).GtkPrinterFunc_FindNamedPrinter( printer, null ); | |
| 144 } | |
| 145 int GtkPrinterFunc_FindNamedPrinter (GtkPrinter* printer, void* user_data) { | |
| 146 PrinterData pd = printerDataFromGtkPrinter(printer); | |
| 147 if (pd.driver ==/*eq*/data.driver && pd.name ==/*eq*/ data.name ) { | |
| 148 this.printer = printer; | |
| 149 OS.g_object_ref(printer); | |
| 150 return 1; | |
| 151 } | |
| 152 return 0; | |
| 153 } | |
| 154 | |
| 155 static PrinterData printerDataFromGtkPrinter(GtkPrinter* printer) { | |
| 156 auto backend = OS.gtk_printer_get_backend(printer); | |
| 157 auto address = OS.G_OBJECT_TYPE_NAME(backend); | |
| 158 char[] backendType =tango.stdc.stringz.fromUtf8z( address ).dup; | |
| 159 | |
| 160 address = OS.gtk_printer_get_name (printer); | |
| 161 char[] name =tango.stdc.stringz.fromUtf8z( address ).dup; | |
| 162 | |
| 163 return new PrinterData (backendType, name); | |
| 164 } | |
| 165 | |
| 166 static void setScope(GtkPrintSettings* settings, int scope_, int startPage, int endPage) { | |
| 167 switch (scope_) { | |
| 168 case PrinterData.ALL_PAGES: | |
| 169 OS.gtk_print_settings_set_print_pages(settings, OS.GTK_PRINT_PAGES_ALL); | |
| 170 break; | |
| 171 case PrinterData.PAGE_RANGE: | |
| 172 OS.gtk_print_settings_set_print_pages(settings, OS.GTK_PRINT_PAGES_RANGES); | |
| 173 GtkPageRange pageRange; | |
| 174 pageRange.start = startPage - 1; | |
| 175 pageRange.end = endPage - 1; | |
| 176 OS.gtk_print_settings_set_page_ranges(settings, &pageRange, 1); | |
| 177 break; | |
| 178 case PrinterData.SELECTION: | |
| 179 //TODO: Not correctly implemented. May need new API. For now, set to ALL. (see gtk bug 344519) | |
| 180 OS.gtk_print_settings_set_print_pages(settings, OS.GTK_PRINT_PAGES_ALL); | |
| 181 break; | |
| 182 default: | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 static DeviceData checkNull (PrinterData data) { | |
| 187 if (data is null) data = new PrinterData(); | |
| 188 if (data.driver is null || data.name is null) { | |
| 189 PrinterData defaultPrinter = getDefaultPrinterData(); | |
| 190 if (defaultPrinter is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 191 data.driver = defaultPrinter.driver; | |
| 192 data.name = defaultPrinter.name; | |
| 193 } | |
| 194 return data; | |
| 195 } | |
| 196 | |
| 197 /** | |
| 198 * Constructs a new printer representing the default printer. | |
| 199 * <p> | |
| 200 * You must dispose the printer when it is no longer required. | |
| 201 * </p> | |
| 202 * | |
| 203 * @exception DWTError <ul> | |
| 204 * <li>ERROR_NO_HANDLES - if there are no valid printers | |
| 205 * </ul> | |
| 206 * | |
| 207 * @see Device#dispose | |
| 208 */ | |
| 209 public this() { | |
| 210 this(null); | |
| 211 } | |
| 212 | |
| 213 /** | |
| 214 * Constructs a new printer given a <code>PrinterData</code> | |
| 215 * object representing the desired printer. | |
| 216 * <p> | |
| 217 * You must dispose the printer when it is no longer required. | |
| 218 * </p> | |
| 219 * | |
| 220 * @param data the printer data for the specified printer | |
| 221 * | |
| 222 * @exception IllegalArgumentException <ul> | |
| 223 * <li>ERROR_INVALID_ARGUMENT - if the specified printer data does not represent a valid printer | |
| 224 * </ul> | |
| 225 * @exception DWTError <ul> | |
| 226 * <li>ERROR_NO_HANDLES - if there are no valid printers | |
| 227 * </ul> | |
| 228 * | |
| 229 * @see Device#dispose | |
| 230 */ | |
| 231 public this(PrinterData data) { | |
| 232 super(checkNull(data)); | |
| 233 } | |
| 234 | |
| 235 int restoreInt(char[] key) { | |
| 236 char [] value = restoreBytes(key, false); | |
| 237 return to!(int)( value ); | |
| 238 } | |
| 239 | |
| 240 double restoreDouble(char[] key) { | |
| 241 char [] value = restoreBytes(key, false); | |
| 242 return to!(double)( value ); | |
| 243 } | |
| 244 | |
| 245 bool restoreBoolean(char[] key) { | |
| 246 char [] value = restoreBytes(key, false); | |
| 247 return to!(bool)( value ); | |
| 248 } | |
| 249 | |
| 250 char[] restoreBytes(char[] key, bool nullTerminate) { | |
| 251 //get key | |
| 252 start = end; | |
| 253 while (end < settingsData.length && settingsData[end] !is 0) end++; | |
| 254 end++; | |
| 255 char [] keyBuffer = new char [end - start]; | |
| 256 System.arraycopy (settingsData, start, keyBuffer, 0, keyBuffer.length); | |
| 257 | |
| 258 //get value | |
| 259 start = end; | |
| 260 while (end < settingsData.length && settingsData[end] !is 0) end++; | |
| 261 int length_ = end - start; | |
| 262 end++; | |
| 263 if (nullTerminate) length_++; | |
| 264 char [] valueBuffer = new char [length_]; | |
| 265 System.arraycopy (settingsData, start, valueBuffer, 0, length_); | |
| 266 | |
| 267 if (DEBUG) tango.io.Stdout.Stdout.formatln( "{}: {}", keyBuffer, valueBuffer ); | |
| 268 | |
| 269 return valueBuffer; | |
| 270 } | |
| 271 | |
| 272 /** | |
| 273 * Returns a reasonable font for applications to use. | |
| 274 * On some platforms, this will match the "default font" | |
| 275 * or "system font" if such can be found. This font | |
| 276 * should not be free'd because it was allocated by the | |
| 277 * system, not the application. | |
| 278 * <p> | |
| 279 * Typically, applications which want the default look | |
| 280 * should simply not set the font on the widgets they | |
| 281 * create. Widgets are always created with the correct | |
| 282 * default font for the class of user-interface component | |
| 283 * they represent. | |
| 284 * </p> | |
| 285 * | |
| 286 * @return a font | |
| 287 * | |
| 288 * @exception DWTException <ul> | |
| 289 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 290 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 291 * </ul> | |
| 292 */ | |
|
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293 public override Font getSystemFont () { |
| 91 | 294 checkDevice (); |
| 295 if (systemFont !is null) return systemFont; | |
| 296 auto style = OS.gtk_widget_get_default_style(); | |
| 297 auto defaultFont = OS.pango_font_description_copy (OS.gtk_style_get_font_desc (style)); | |
| 298 return systemFont = Font.gtk_new (this, defaultFont); | |
| 299 } | |
| 300 | |
| 301 /** | |
| 302 * Invokes platform specific functionality to allocate a new GC handle. | |
| 303 * <p> | |
| 304 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 305 * API for <code>Printer</code>. It is marked public only so that it | |
| 306 * can be shared within the packages provided by DWT. It is not | |
| 307 * available on all platforms, and should never be called from | |
| 308 * application code. | |
| 309 * </p> | |
| 310 * | |
| 311 * @param data the platform specific GC data | |
| 312 * @return the platform specific GC handle | |
| 313 */ | |
|
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314 public override GdkGC* internal_new_GC(GCData data) { |
| 91 | 315 auto drawable = OS.gdk_pixmap_new(OS.GDK_ROOT_PARENT(), 1, 1, 1); |
| 316 auto gdkGC = OS.gdk_gc_new (drawable); | |
| 317 if (gdkGC is null) DWT.error (DWT.ERROR_NO_HANDLES); | |
| 318 if (data !is null) { | |
| 319 if (isGCCreated) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 320 int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; | |
| 321 if ((data.style & mask) is 0) { | |
| 322 data.style |= DWT.LEFT_TO_RIGHT; | |
| 323 } | |
| 324 data.device = this; | |
| 325 data.drawable = drawable; | |
| 326 data.background = getSystemColor (DWT.COLOR_WHITE).handle; | |
| 327 data.foreground = getSystemColor (DWT.COLOR_BLACK).handle; | |
| 328 data.font = getSystemFont ().handle; | |
| 329 if (cairo is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 330 data.cairo = cairo; | |
| 331 isGCCreated = true; | |
| 332 } | |
| 333 return gdkGC; | |
| 334 } | |
| 335 | |
| 336 /** | |
| 337 * Invokes platform specific functionality to dispose a GC handle. | |
| 338 * <p> | |
| 339 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 340 * API for <code>Printer</code>. It is marked public only so that it | |
| 341 * can be shared within the packages provided by DWT. It is not | |
| 342 * available on all platforms, and should never be called from | |
| 343 * application code. | |
| 344 * </p> | |
| 345 * | |
| 346 * @param hDC the platform specific GC handle | |
| 347 * @param data the platform specific GC data | |
| 348 */ | |
|
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349 public override void internal_dispose_GC(GdkGC* gdkGC, GCData data) { |
| 91 | 350 if (data !is null) isGCCreated = false; |
| 351 OS.g_object_unref (gdkGC); | |
| 352 if (data !is null) { | |
| 353 if (data.drawable !is null) OS.g_object_unref (data.drawable); | |
| 354 data.drawable = null; | |
| 355 data.cairo = null; | |
| 356 } | |
| 357 } | |
| 358 | |
| 359 /** | |
| 360 * Releases any internal state prior to destroying this printer. | |
| 361 * This method is called internally by the dispose | |
| 362 * mechanism of the <code>Device</code> class. | |
| 363 */ | |
| 364 protected void release () { | |
| 365 super.release(); | |
| 366 | |
| 367 /* Dispose the default font */ | |
| 368 if (systemFont !is null) systemFont.dispose (); | |
| 369 systemFont = null; | |
| 370 } | |
| 371 | |
| 372 /** | |
| 373 * Starts a print job and returns true if the job started successfully | |
| 374 * and false otherwise. | |
| 375 * <p> | |
| 376 * This must be the first method called to initiate a print job, | |
| 377 * followed by any number of startPage/endPage calls, followed by | |
| 378 * endJob. Calling startPage, endPage, or endJob before startJob | |
| 379 * will result in undefined behavior. | |
| 380 * </p> | |
| 381 * | |
| 382 * @param jobName the name of the print job to start | |
| 383 * @return true if the job started successfully and false otherwise. | |
| 384 * | |
| 385 * @exception DWTException <ul> | |
| 386 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 387 * </ul> | |
| 388 * | |
| 389 * @see #startPage | |
| 390 * @see #endPage | |
| 391 * @see #endJob | |
| 392 */ | |
| 393 public bool startJob(char[] jobName) { | |
| 394 checkDevice(); | |
| 395 char* buffer = tango.stdc.stringz.toStringz(jobName); | |
| 396 printJob = OS.gtk_print_job_new (buffer, printer, settings, pageSetup); | |
| 397 if (printJob is null) return false; | |
| 398 surface = OS.gtk_print_job_get_surface(printJob, null); | |
| 399 if (surface is null) { | |
| 400 OS.g_object_unref(printJob); | |
| 401 printJob = null; | |
| 402 return false; | |
| 403 } | |
| 404 cairo = Cairo.cairo_create(surface); | |
| 405 if (cairo is null) { | |
| 406 OS.g_object_unref(printJob); | |
| 407 printJob = null; | |
| 408 return false; | |
| 409 } | |
| 410 return true; | |
| 411 } | |
| 412 | |
| 413 /** | |
| 414 * Destroys the printer handle. | |
| 415 * This method is called internally by the dispose | |
| 416 * mechanism of the <code>Device</code> class. | |
| 417 */ | |
| 418 protected void destroy () { | |
| 419 if (printer !is null) OS.g_object_unref (printer); | |
| 420 if (settings !is null) OS.g_object_unref (settings); | |
| 421 if (pageSetup !is null) OS.g_object_unref (pageSetup); | |
| 422 if (cairo !is null) Cairo.cairo_destroy (cairo); | |
| 423 if (printJob !is null) OS.g_object_unref (printJob); | |
| 424 printer = null; | |
| 425 settings = null; | |
| 426 pageSetup = null; | |
| 427 cairo = null; | |
| 428 printJob = null; | |
| 429 } | |
| 430 | |
| 431 /** | |
| 432 * Ends the current print job. | |
| 433 * | |
| 434 * @exception DWTException <ul> | |
| 435 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 436 * </ul> | |
| 437 * | |
| 438 * @see #startJob | |
| 439 * @see #startPage | |
| 440 * @see #endPage | |
| 441 */ | |
| 442 public void endJob() { | |
| 443 checkDevice(); | |
| 444 if (printJob is null) return; | |
| 445 Cairo.cairo_surface_finish(surface); | |
| 446 OS.gtk_print_job_send(printJob, null, null, null ); | |
| 447 } | |
| 448 | |
| 449 /** | |
| 450 * Cancels a print job in progress. | |
| 451 * | |
| 452 * @exception DWTException <ul> | |
| 453 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 454 * </ul> | |
| 455 */ | |
| 456 public void cancelJob() { | |
| 457 checkDevice(); | |
| 458 if (printJob is null) return; | |
| 459 //TODO: Need to implement (waiting on gtk bug 339323) | |
| 460 //OS.g_object_unref(printJob); | |
| 461 //printJob = 0; | |
| 462 } | |
| 463 | |
| 464 /** | |
| 465 * Starts a page and returns true if the page started successfully | |
| 466 * and false otherwise. | |
| 467 * <p> | |
| 468 * After calling startJob, this method may be called any number of times | |
| 469 * along with a matching endPage. | |
| 470 * </p> | |
| 471 * | |
| 472 * @return true if the page started successfully and false otherwise. | |
| 473 * | |
| 474 * @exception DWTException <ul> | |
| 475 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 476 * </ul> | |
| 477 * | |
| 478 * @see #endPage | |
| 479 * @see #startJob | |
| 480 * @see #endJob | |
| 481 */ | |
| 482 public bool startPage() { | |
| 483 checkDevice(); | |
| 484 if (printJob is null) return false; | |
| 485 double width = OS.gtk_page_setup_get_paper_width (pageSetup, OS.GTK_UNIT_POINTS); | |
| 486 double height = OS.gtk_page_setup_get_paper_height (pageSetup, OS.GTK_UNIT_POINTS); | |
| 487 int type = Cairo.cairo_surface_get_type (surface); | |
| 488 switch (type) { | |
| 489 case Cairo.CAIRO_SURFACE_TYPE_PS: | |
| 490 Cairo.cairo_ps_surface_set_size (surface, width, height); | |
| 491 break; | |
| 492 case Cairo.CAIRO_SURFACE_TYPE_PDF: | |
| 493 Cairo.cairo_pdf_surface_set_size (surface, width, height); | |
| 494 break; | |
|
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495 default: |
| 91 | 496 } |
| 497 return true; | |
| 498 } | |
| 499 | |
| 500 /** | |
| 501 * Ends the current page. | |
| 502 * | |
| 503 * @exception DWTException <ul> | |
| 504 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 505 * </ul> | |
| 506 * | |
| 507 * @see #startPage | |
| 508 * @see #startJob | |
| 509 * @see #endJob | |
| 510 */ | |
| 511 public void endPage() { | |
| 512 checkDevice(); | |
| 513 if (cairo !is null) Cairo.cairo_show_page(cairo); | |
| 514 } | |
| 515 | |
| 516 /** | |
| 517 * Returns a point whose x coordinate is the horizontal | |
| 518 * dots per inch of the printer, and whose y coordinate | |
| 519 * is the vertical dots per inch of the printer. | |
| 520 * | |
| 521 * @return the horizontal and vertical DPI | |
| 522 * | |
| 523 * @exception DWTException <ul> | |
| 524 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 525 * </ul> | |
| 526 */ | |
|
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527 public override Point getDPI() { |
| 91 | 528 checkDevice(); |
| 529 int resolution = OS.gtk_print_settings_get_resolution(settings); | |
| 530 if (DEBUG) tango.io.Stdout.Stdout.formatln("print_settings.resolution={}", resolution); | |
| 531 //TODO: Return 72 (1/72 inch = 1 point) until gtk bug 346245 is fixed | |
| 532 //TODO: Fix this: gtk_print_settings_get_resolution returns 0? (see gtk bug 346252) | |
| 533 if (true || resolution is 0) return new Point(72, 72); | |
| 534 return new Point(resolution, resolution); | |
| 535 } | |
| 536 | |
| 537 /** | |
| 538 * Returns a rectangle describing the receiver's size and location. | |
| 539 * For a printer, this is the size of a physical page, in pixels. | |
| 540 * | |
| 541 * @return the bounding rectangle | |
| 542 * | |
| 543 * @exception DWTException <ul> | |
| 544 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 545 * </ul> | |
| 546 * | |
| 547 * @see #getClientArea | |
| 548 * @see #computeTrim | |
| 549 */ | |
|
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550 public override Rectangle getBounds() { |
| 91 | 551 checkDevice(); |
| 552 //TODO: We are supposed to return this in pixels, but GTK_UNIT_PIXELS is currently not implemented (gtk bug 346245) | |
| 553 double width = OS.gtk_page_setup_get_paper_width (pageSetup, OS.GTK_UNIT_POINTS); | |
| 554 double height = OS.gtk_page_setup_get_paper_height (pageSetup, OS.GTK_UNIT_POINTS); | |
| 555 return new Rectangle(0, 0, cast(int) width, cast(int) height); | |
| 556 } | |
| 557 | |
| 558 /** | |
| 559 * Returns a rectangle which describes the area of the | |
| 560 * receiver which is capable of displaying data. | |
| 561 * For a printer, this is the size of the printable area | |
| 562 * of a page, in pixels. | |
| 563 * | |
| 564 * @return the client area | |
| 565 * | |
| 566 * @exception DWTException <ul> | |
| 567 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 568 * </ul> | |
| 569 * | |
| 570 * @see #getBounds | |
| 571 * @see #computeTrim | |
| 572 */ | |
|
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573 public override Rectangle getClientArea() { |
| 91 | 574 checkDevice(); |
| 575 //TODO: We are supposed to return this in pixels, but GTK_UNIT_PIXELS is currently not implemented (gtk bug 346245) | |
| 576 double width = OS.gtk_page_setup_get_page_width(pageSetup, OS.GTK_UNIT_POINTS); | |
| 577 double height = OS.gtk_page_setup_get_page_height(pageSetup, OS.GTK_UNIT_POINTS); | |
| 578 return new Rectangle(0, 0, cast(int) width, cast(int) height); | |
| 579 } | |
| 580 | |
| 581 /** | |
| 582 * Given a desired <em>client area</em> for the receiver | |
| 583 * (as described by the arguments), returns the bounding | |
| 584 * rectangle which would be required to produce that client | |
| 585 * area. | |
| 586 * <p> | |
| 587 * In other words, it returns a rectangle such that, if the | |
| 588 * receiver's bounds were set to that rectangle, the area | |
| 589 * of the receiver which is capable of displaying data | |
| 590 * (that is, not covered by the "trimmings") would be the | |
| 591 * rectangle described by the arguments (relative to the | |
| 592 * receiver's parent). | |
| 593 * </p><p> | |
| 594 * Note that there is no setBounds for a printer. This method | |
| 595 * is usually used by passing in the client area (the 'printable | |
| 596 * area') of the printer. It can also be useful to pass in 0, 0, 0, 0. | |
| 597 * </p> | |
| 598 * | |
| 599 * @param x the desired x coordinate of the client area | |
| 600 * @param y the desired y coordinate of the client area | |
| 601 * @param width the desired width of the client area | |
| 602 * @param height the desired height of the client area | |
| 603 * @return the required bounds to produce the given client area | |
| 604 * | |
| 605 * @exception DWTException <ul> | |
| 606 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 607 * </ul> | |
| 608 * | |
| 609 * @see #getBounds | |
| 610 * @see #getClientArea | |
| 611 */ | |
| 612 public Rectangle computeTrim(int x, int y, int width, int height) { | |
| 613 checkDevice(); | |
| 614 //TODO: We are supposed to return this in pixels, but GTK_UNIT_PIXELS is currently not implemented (gtk bug 346245) | |
| 615 double printWidth = OS.gtk_page_setup_get_page_width(pageSetup, OS.GTK_UNIT_POINTS); | |
| 616 double printHeight = OS.gtk_page_setup_get_page_height(pageSetup, OS.GTK_UNIT_POINTS); | |
| 617 double paperWidth = OS.gtk_page_setup_get_paper_width (pageSetup, OS.GTK_UNIT_POINTS); | |
| 618 double paperHeight = OS.gtk_page_setup_get_paper_height (pageSetup, OS.GTK_UNIT_POINTS); | |
| 619 double printX = -OS.gtk_page_setup_get_left_margin(pageSetup, OS.GTK_UNIT_POINTS); | |
| 620 double printY = -OS.gtk_page_setup_get_top_margin(pageSetup, OS.GTK_UNIT_POINTS); | |
| 621 double hTrim = paperWidth - printWidth; | |
| 622 double vTrim = paperHeight - printHeight; | |
| 623 return new Rectangle(x + cast(int)printX, y + cast(int)printY, width + cast(int)hTrim, height + cast(int)vTrim); | |
| 624 } | |
| 625 | |
| 626 /** | |
| 627 * Creates the printer handle. | |
| 628 * This method is called internally by the instance creation | |
| 629 * mechanism of the <code>Device</code> class. | |
| 630 * @param deviceData the device data | |
| 631 */ | |
| 632 protected void create(DeviceData deviceData) { | |
| 633 this.data = cast(PrinterData)deviceData; | |
| 634 if (OS.GTK_VERSION < OS.buildVERSION (2, 10, 0)) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 635 printer = gtkPrinterFromPrinterData(); | |
| 636 if (printer is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 637 } | |
| 638 | |
| 639 /** | |
| 640 * Initializes any internal resources needed by the | |
| 641 * device. | |
| 642 * <p> | |
| 643 * This method is called after <code>create</code>. | |
| 644 * </p><p> | |
| 645 * If subclasses reimplement this method, they must | |
| 646 * call the <code>super</code> implementation. | |
| 647 * </p> | |
| 648 * | |
| 649 * @see #create | |
| 650 */ | |
| 651 protected void init() { | |
| 652 super.init (); | |
| 653 settings = OS.gtk_print_settings_new(); | |
| 654 pageSetup = OS.gtk_page_setup_new(); | |
| 655 if (data.otherData !is null) { | |
| 656 /* Retreive stored printer_settings data. */ | |
| 657 settingsData = data.otherData; | |
| 658 start = end = 0; | |
| 659 while (end < settingsData.length && settingsData[end] !is 0) { | |
| 660 start = end; | |
| 661 while (end < settingsData.length && settingsData[end] !is 0) end++; | |
| 662 end++; | |
| 663 char [] keyBuffer = new char [end - start]; | |
| 664 System.arraycopy (settingsData, start, keyBuffer, 0, keyBuffer.length); | |
| 665 start = end; | |
| 666 while (end < settingsData.length && settingsData[end] !is 0) end++; | |
| 667 end++; | |
| 668 char [] valueBuffer = new char [end - start]; | |
| 669 System.arraycopy (settingsData, start, valueBuffer, 0, valueBuffer.length); | |
| 670 OS.gtk_print_settings_set(settings, keyBuffer.ptr, valueBuffer.ptr); | |
| 671 if (DEBUG) tango.io.Stdout.Stdout.formatln("{}: {}", keyBuffer, valueBuffer); | |
| 672 } | |
| 673 end++; // skip extra null terminator | |
| 674 | |
| 675 /* Retreive stored page_setup data. | |
| 676 * Note that page_setup properties must be stored (in PrintDialog) and restored (here) in the same order. | |
| 677 */ | |
| 678 OS.gtk_page_setup_set_orientation(pageSetup, restoreInt("orientation")); //$NON-NLS-1$ | |
| 679 OS.gtk_page_setup_set_top_margin(pageSetup, restoreDouble("top_margin"), OS.GTK_UNIT_MM); //$NON-NLS-1$ | |
| 680 OS.gtk_page_setup_set_bottom_margin(pageSetup, restoreDouble("bottom_margin"), OS.GTK_UNIT_MM); //$NON-NLS-1$ | |
| 681 OS.gtk_page_setup_set_left_margin(pageSetup, restoreDouble("left_margin"), OS.GTK_UNIT_MM); //$NON-NLS-1$ | |
| 682 OS.gtk_page_setup_set_right_margin(pageSetup, restoreDouble("right_margin"), OS.GTK_UNIT_MM); //$NON-NLS-1$ | |
| 683 char [] name = restoreBytes("paper_size_name", true); //$NON-NLS-1$ | |
| 684 char [] display_name = restoreBytes("paper_size_display_name", true); //$NON-NLS-1$ | |
| 685 char [] ppd_name = restoreBytes("paper_size_ppd_name", true); //$NON-NLS-1$ | |
| 686 double width = restoreDouble("paper_size_width"); //$NON-NLS-1$ | |
| 687 double height = restoreDouble("paper_size_height"); //$NON-NLS-1$ | |
| 688 bool custom = restoreBoolean("paper_size_is_custom"); //$NON-NLS-1$ | |
| 689 GtkPaperSize* paper_size; | |
| 690 if (custom) { | |
| 691 if (ppd_name.length > 0) { | |
| 692 paper_size = OS.gtk_paper_size_new_from_ppd(ppd_name.ptr, display_name.ptr, width, height); | |
| 693 } else { | |
| 694 paper_size = OS.gtk_paper_size_new_custom(name.ptr, display_name.ptr, width, height, OS.GTK_UNIT_MM); | |
| 695 } | |
| 696 } else { | |
| 697 paper_size = OS.gtk_paper_size_new(name.ptr); | |
| 698 } | |
| 699 OS.gtk_page_setup_set_paper_size(pageSetup, paper_size); | |
| 700 OS.g_free(paper_size); | |
| 701 } | |
| 702 | |
| 703 /* Set values of settings from PrinterData. */ | |
| 704 setScope(settings, data.scope_, data.startPage, data.endPage); | |
| 705 //TODO: Should we look at printToFile, or driver/name for "Print to File", or both? (see gtk bug 345590) | |
| 706 if (data.printToFile) { | |
| 707 char* buffer = tango.stdc.stringz.toStringz( data.fileName ); | |
| 708 OS.gtk_print_settings_set(settings, OS.GTK_PRINT_SETTINGS_OUTPUT_URI.ptr, buffer); | |
| 709 } | |
| 710 if (data.driver ==/*eq*/ "GtkPrintBackendFile" && data.name ==/*eq*/ "Print to File" ) { //$NON-NLS-1$ //$NON-NLS-2$ | |
| 711 char* buffer = tango.stdc.stringz.toStringz( data.fileName ); | |
| 712 OS.gtk_print_settings_set(settings, OS.GTK_PRINT_SETTINGS_OUTPUT_URI.ptr, buffer); | |
| 713 } | |
| 714 OS.gtk_print_settings_set_n_copies(settings, data.copyCount); | |
| 715 OS.gtk_print_settings_set_collate(settings, data.collate); | |
| 716 } | |
| 717 | |
| 718 /** | |
| 719 * Returns a <code>PrinterData</code> object representing the | |
| 720 * target printer for this print job. | |
| 721 * | |
| 722 * @return a PrinterData object describing the receiver | |
| 723 */ | |
| 724 public PrinterData getPrinterData() { | |
| 725 checkDevice(); | |
| 726 return data; | |
| 727 } | |
| 728 | |
| 729 } |