Mercurial > projects > dwt-linux
annotate dwt/printing/Printer.d @ 200:08789b28bdf3
import dwt.dwthelper.utils now explicit
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Fri, 07 Mar 2008 03:12:23 +0100 |
| parents | e0ffca35fe59 |
| children | 00180515eb65 |
| 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; | |
|
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29 import dwt.dwthelper.utils; |
| 91 | 30 |
| 31 static import tango.stdc.stringz; | |
| 32 static import tango.io.Stdout; | |
| 33 import tango.util.Convert; | |
| 34 | |
| 35 | |
| 36 /** | |
| 37 * Instances of this class are used to print to a printer. | |
| 38 * Applications create a GC on a printer using <code>new GC(printer)</code> | |
| 39 * and then draw on the printer GC using the usual graphics calls. | |
| 40 * <p> | |
| 41 * A <code>Printer</code> object may be constructed by providing | |
| 42 * a <code>PrinterData</code> object which identifies the printer. | |
| 43 * A <code>PrintDialog</code> presents a print dialog to the user | |
| 44 * and returns an initialized instance of <code>PrinterData</code>. | |
| 45 * Alternatively, calling <code>new Printer()</code> will construct a | |
| 46 * printer object for the user's default printer. | |
| 47 * </p><p> | |
| 48 * Application code must explicitly invoke the <code>Printer.dispose()</code> | |
| 49 * method to release the operating system resources managed by each instance | |
| 50 * when those instances are no longer required. | |
| 51 * </p> | |
| 52 * | |
| 53 * @see PrinterData | |
| 54 * @see PrintDialog | |
| 55 */ | |
| 56 public final class Printer : Device { | |
| 57 static PrinterData [] printerList; | |
| 58 | |
| 59 PrinterData data; | |
| 60 GtkPrinter* printer; | |
| 61 GtkPrintJob* printJob; | |
| 62 GtkPrintSettings* settings; | |
| 63 void* pageSetup; | |
| 64 cairo_surface_t* surface; | |
| 65 cairo_t* cairo; | |
| 66 | |
| 67 /** | |
| 68 * whether or not a GC was created for this printer | |
| 69 */ | |
| 70 bool isGCCreated = false; | |
| 71 Font systemFont; | |
| 72 | |
| 73 char[] settingsData; | |
| 74 int start, end; | |
| 75 | |
| 76 static const char[] GTK_LPR_BACKEND = "GtkPrintBackendLpr"; //$NON-NLS-1$ | |
| 77 | |
| 78 /** | |
| 79 * Returns an array of <code>PrinterData</code> objects | |
| 80 * representing all available printers. | |
| 81 * | |
| 82 * @return the list of available printers | |
| 83 */ | |
| 84 public static PrinterData[] getPrinterList() { | |
| 85 printerList = new PrinterData [0]; | |
| 86 if (OS.GTK_VERSION < OS.buildVERSION (2, 10, 0)) { | |
| 87 return printerList; | |
| 88 } | |
| 89 OS.gtk_enumerate_printers(&GtkPrinterFunc_List, null, null, true); | |
| 90 return printerList; | |
| 91 } | |
| 92 | |
| 93 private static extern(C) int GtkPrinterFunc_List (GtkPrinter* printer, void* user_data) { | |
| 94 int length_ = printerList.length; | |
| 95 PrinterData [] newList = new PrinterData [length_ + 1]; | |
| 96 System.arraycopy (printerList, 0, newList, 0, length_); | |
| 97 printerList = newList; | |
| 98 printerList [length_] = printerDataFromGtkPrinter(printer); | |
| 99 /* | |
| 100 * Bug in GTK. While performing a gtk_enumerate_printers(), GTK finds all of the | |
| 101 * available printers from each backend and can hang. If a backend requires more | |
| 102 * time to gather printer info, GTK will start an event loop waiting for a done | |
| 103 * signal before continuing. For the Lpr backend, GTK does not send a done signal | |
| 104 * which means the event loop never ends. The fix is to check to see if the driver | |
| 105 * is of type Lpr, and stop the enumeration, which exits the event loop. | |
| 106 */ | |
| 195 | 107 if (printerList[length_].driver.equals(GTK_LPR_BACKEND)) return 1; |
| 91 | 108 return 0; |
| 109 } | |
| 110 | |
| 111 /** | |
| 112 * Returns a <code>PrinterData</code> object representing | |
| 113 * the default printer or <code>null</code> if there is no | |
| 114 * printer available on the System. | |
| 115 * | |
| 116 * @return the default printer data or null | |
| 117 * | |
| 118 * @since 2.1 | |
| 119 */ | |
| 120 public static PrinterData getDefaultPrinterData() { | |
| 121 printerList = new PrinterData [1]; | |
| 122 if (OS.GTK_VERSION < OS.buildVERSION (2, 10, 0)) { | |
| 123 return null; | |
| 124 } | |
| 125 OS.gtk_enumerate_printers(&GtkPrinterFunc_Default, null, null, true); | |
| 126 return printerList[0]; | |
| 127 } | |
| 128 | |
| 129 private static extern(C) int GtkPrinterFunc_Default (GtkPrinter* printer, void* user_data) { | |
| 130 if (OS.gtk_printer_is_default(printer)) { | |
| 131 printerList[0] = printerDataFromGtkPrinter(printer); | |
| 132 return 1; | |
| 133 } | |
| 134 return 0; | |
| 135 } | |
| 136 | |
| 137 GtkPrinter* gtkPrinterFromPrinterData() { | |
| 138 printer = null; | |
| 139 OS.gtk_enumerate_printers(&GtkPrinterFunc_FindNamedPrinterFunc, cast(void*)this, null, true); | |
| 140 return printer; | |
| 141 } | |
| 142 | |
| 143 private static extern(C) int GtkPrinterFunc_FindNamedPrinterFunc (GtkPrinter* printer, void* user_data) { | |
| 144 return (cast(Printer)user_data).GtkPrinterFunc_FindNamedPrinter( printer, null ); | |
| 145 } | |
| 146 int GtkPrinterFunc_FindNamedPrinter (GtkPrinter* printer, void* user_data) { | |
| 147 PrinterData pd = printerDataFromGtkPrinter(printer); | |
| 195 | 148 if (pd.driver.equals(data.driver) && pd.name.equals(data.name)) { |
| 91 | 149 this.printer = printer; |
| 150 OS.g_object_ref(printer); | |
| 151 return 1; | |
| 152 } | |
| 153 return 0; | |
| 154 } | |
| 155 | |
| 156 static PrinterData printerDataFromGtkPrinter(GtkPrinter* printer) { | |
| 157 auto backend = OS.gtk_printer_get_backend(printer); | |
| 158 auto address = OS.G_OBJECT_TYPE_NAME(backend); | |
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159 char[] backendType =tango.stdc.stringz.fromStringz( address ).dup; |
| 91 | 160 |
| 161 address = OS.gtk_printer_get_name (printer); | |
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162 char[] name =tango.stdc.stringz.fromStringz( address ).dup; |
| 91 | 163 |
| 164 return new PrinterData (backendType, name); | |
| 165 } | |
| 166 | |
| 167 static void setScope(GtkPrintSettings* settings, int scope_, int startPage, int endPage) { | |
| 168 switch (scope_) { | |
| 169 case PrinterData.ALL_PAGES: | |
| 170 OS.gtk_print_settings_set_print_pages(settings, OS.GTK_PRINT_PAGES_ALL); | |
| 171 break; | |
| 172 case PrinterData.PAGE_RANGE: | |
| 173 OS.gtk_print_settings_set_print_pages(settings, OS.GTK_PRINT_PAGES_RANGES); | |
| 174 GtkPageRange pageRange; | |
| 175 pageRange.start = startPage - 1; | |
| 176 pageRange.end = endPage - 1; | |
| 177 OS.gtk_print_settings_set_page_ranges(settings, &pageRange, 1); | |
| 178 break; | |
| 179 case PrinterData.SELECTION: | |
| 180 //TODO: Not correctly implemented. May need new API. For now, set to ALL. (see gtk bug 344519) | |
| 181 OS.gtk_print_settings_set_print_pages(settings, OS.GTK_PRINT_PAGES_ALL); | |
| 182 break; | |
| 183 default: | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 static DeviceData checkNull (PrinterData data) { | |
| 188 if (data is null) data = new PrinterData(); | |
| 189 if (data.driver is null || data.name is null) { | |
| 190 PrinterData defaultPrinter = getDefaultPrinterData(); | |
| 191 if (defaultPrinter is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 192 data.driver = defaultPrinter.driver; | |
| 193 data.name = defaultPrinter.name; | |
| 194 } | |
| 195 return data; | |
| 196 } | |
| 197 | |
| 198 /** | |
| 199 * Constructs a new printer representing the default printer. | |
| 200 * <p> | |
| 201 * You must dispose the printer when it is no longer required. | |
| 202 * </p> | |
| 203 * | |
| 204 * @exception DWTError <ul> | |
| 205 * <li>ERROR_NO_HANDLES - if there are no valid printers | |
| 206 * </ul> | |
| 207 * | |
| 208 * @see Device#dispose | |
| 209 */ | |
| 210 public this() { | |
| 211 this(null); | |
| 212 } | |
| 213 | |
| 214 /** | |
| 215 * Constructs a new printer given a <code>PrinterData</code> | |
| 216 * object representing the desired printer. | |
| 217 * <p> | |
| 218 * You must dispose the printer when it is no longer required. | |
| 219 * </p> | |
| 220 * | |
| 221 * @param data the printer data for the specified printer | |
| 222 * | |
| 223 * @exception IllegalArgumentException <ul> | |
| 224 * <li>ERROR_INVALID_ARGUMENT - if the specified printer data does not represent a valid printer | |
| 225 * </ul> | |
| 226 * @exception DWTError <ul> | |
| 227 * <li>ERROR_NO_HANDLES - if there are no valid printers | |
| 228 * </ul> | |
| 229 * | |
| 230 * @see Device#dispose | |
| 231 */ | |
| 232 public this(PrinterData data) { | |
| 233 super(checkNull(data)); | |
| 234 } | |
| 235 | |
| 236 int restoreInt(char[] key) { | |
| 237 char [] value = restoreBytes(key, false); | |
| 238 return to!(int)( value ); | |
| 239 } | |
| 240 | |
| 241 double restoreDouble(char[] key) { | |
| 242 char [] value = restoreBytes(key, false); | |
| 243 return to!(double)( value ); | |
| 244 } | |
| 245 | |
| 246 bool restoreBoolean(char[] key) { | |
| 247 char [] value = restoreBytes(key, false); | |
| 248 return to!(bool)( value ); | |
| 249 } | |
| 250 | |
| 251 char[] restoreBytes(char[] key, bool nullTerminate) { | |
| 252 //get key | |
| 253 start = end; | |
| 254 while (end < settingsData.length && settingsData[end] !is 0) end++; | |
| 255 end++; | |
| 256 char [] keyBuffer = new char [end - start]; | |
| 257 System.arraycopy (settingsData, start, keyBuffer, 0, keyBuffer.length); | |
| 258 | |
| 259 //get value | |
| 260 start = end; | |
| 261 while (end < settingsData.length && settingsData[end] !is 0) end++; | |
| 262 int length_ = end - start; | |
| 263 end++; | |
| 264 if (nullTerminate) length_++; | |
| 265 char [] valueBuffer = new char [length_]; | |
| 266 System.arraycopy (settingsData, start, valueBuffer, 0, length_); | |
| 267 | |
| 268 if (DEBUG) tango.io.Stdout.Stdout.formatln( "{}: {}", keyBuffer, valueBuffer ); | |
| 269 | |
| 270 return valueBuffer; | |
| 271 } | |
| 272 | |
| 273 /** | |
| 274 * Returns a reasonable font for applications to use. | |
| 275 * On some platforms, this will match the "default font" | |
| 276 * or "system font" if such can be found. This font | |
| 277 * should not be free'd because it was allocated by the | |
| 278 * system, not the application. | |
| 279 * <p> | |
| 280 * Typically, applications which want the default look | |
| 281 * should simply not set the font on the widgets they | |
| 282 * create. Widgets are always created with the correct | |
| 283 * default font for the class of user-interface component | |
| 284 * they represent. | |
| 285 * </p> | |
| 286 * | |
| 287 * @return a font | |
| 288 * | |
| 289 * @exception DWTException <ul> | |
| 290 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 291 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 292 * </ul> | |
| 293 */ | |
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294 public override Font getSystemFont () { |
| 91 | 295 checkDevice (); |
| 296 if (systemFont !is null) return systemFont; | |
| 297 auto style = OS.gtk_widget_get_default_style(); | |
| 298 auto defaultFont = OS.pango_font_description_copy (OS.gtk_style_get_font_desc (style)); | |
| 299 return systemFont = Font.gtk_new (this, defaultFont); | |
| 300 } | |
| 301 | |
| 302 /** | |
| 303 * Invokes platform specific functionality to allocate a new GC handle. | |
| 304 * <p> | |
| 305 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 306 * API for <code>Printer</code>. It is marked public only so that it | |
| 307 * can be shared within the packages provided by DWT. It is not | |
| 308 * available on all platforms, and should never be called from | |
| 309 * application code. | |
| 310 * </p> | |
| 311 * | |
| 312 * @param data the platform specific GC data | |
| 313 * @return the platform specific GC handle | |
| 314 */ | |
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315 public override GdkGC* internal_new_GC(GCData data) { |
| 91 | 316 auto drawable = OS.gdk_pixmap_new(OS.GDK_ROOT_PARENT(), 1, 1, 1); |
| 317 auto gdkGC = OS.gdk_gc_new (drawable); | |
| 318 if (gdkGC is null) DWT.error (DWT.ERROR_NO_HANDLES); | |
| 319 if (data !is null) { | |
| 320 if (isGCCreated) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 321 int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; | |
| 322 if ((data.style & mask) is 0) { | |
| 323 data.style |= DWT.LEFT_TO_RIGHT; | |
| 324 } | |
| 325 data.device = this; | |
| 326 data.drawable = drawable; | |
| 327 data.background = getSystemColor (DWT.COLOR_WHITE).handle; | |
| 328 data.foreground = getSystemColor (DWT.COLOR_BLACK).handle; | |
| 329 data.font = getSystemFont ().handle; | |
| 330 if (cairo is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 331 data.cairo = cairo; | |
| 332 isGCCreated = true; | |
| 333 } | |
| 334 return gdkGC; | |
| 335 } | |
| 336 | |
| 337 /** | |
| 338 * Invokes platform specific functionality to dispose a GC handle. | |
| 339 * <p> | |
| 340 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 341 * API for <code>Printer</code>. It is marked public only so that it | |
| 342 * can be shared within the packages provided by DWT. It is not | |
| 343 * available on all platforms, and should never be called from | |
| 344 * application code. | |
| 345 * </p> | |
| 346 * | |
| 347 * @param hDC the platform specific GC handle | |
| 348 * @param data the platform specific GC data | |
| 349 */ | |
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350 public override void internal_dispose_GC(GdkGC* gdkGC, GCData data) { |
| 91 | 351 if (data !is null) isGCCreated = false; |
| 352 OS.g_object_unref (gdkGC); | |
| 353 if (data !is null) { | |
| 354 if (data.drawable !is null) OS.g_object_unref (data.drawable); | |
| 355 data.drawable = null; | |
| 356 data.cairo = null; | |
| 357 } | |
| 358 } | |
| 359 | |
| 360 /** | |
| 361 * Releases any internal state prior to destroying this printer. | |
| 362 * This method is called internally by the dispose | |
| 363 * mechanism of the <code>Device</code> class. | |
| 364 */ | |
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365 protected override void release () { |
| 91 | 366 super.release(); |
| 367 | |
| 368 /* Dispose the default font */ | |
| 369 if (systemFont !is null) systemFont.dispose (); | |
| 370 systemFont = null; | |
| 371 } | |
| 372 | |
| 373 /** | |
| 374 * Starts a print job and returns true if the job started successfully | |
| 375 * and false otherwise. | |
| 376 * <p> | |
| 377 * This must be the first method called to initiate a print job, | |
| 378 * followed by any number of startPage/endPage calls, followed by | |
| 379 * endJob. Calling startPage, endPage, or endJob before startJob | |
| 380 * will result in undefined behavior. | |
| 381 * </p> | |
| 382 * | |
| 383 * @param jobName the name of the print job to start | |
| 384 * @return true if the job started successfully and false otherwise. | |
| 385 * | |
| 386 * @exception DWTException <ul> | |
| 387 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 388 * </ul> | |
| 389 * | |
| 390 * @see #startPage | |
| 391 * @see #endPage | |
| 392 * @see #endJob | |
| 393 */ | |
| 394 public bool startJob(char[] jobName) { | |
| 395 checkDevice(); | |
| 396 char* buffer = tango.stdc.stringz.toStringz(jobName); | |
| 397 printJob = OS.gtk_print_job_new (buffer, printer, settings, pageSetup); | |
| 398 if (printJob is null) return false; | |
| 399 surface = OS.gtk_print_job_get_surface(printJob, null); | |
| 400 if (surface is null) { | |
| 401 OS.g_object_unref(printJob); | |
| 402 printJob = null; | |
| 403 return false; | |
| 404 } | |
| 405 cairo = Cairo.cairo_create(surface); | |
| 406 if (cairo is null) { | |
| 407 OS.g_object_unref(printJob); | |
| 408 printJob = null; | |
| 409 return false; | |
| 410 } | |
| 411 return true; | |
| 412 } | |
| 413 | |
| 414 /** | |
| 415 * Destroys the printer handle. | |
| 416 * This method is called internally by the dispose | |
| 417 * mechanism of the <code>Device</code> class. | |
| 418 */ | |
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419 protected override void destroy () { |
| 91 | 420 if (printer !is null) OS.g_object_unref (printer); |
| 421 if (settings !is null) OS.g_object_unref (settings); | |
| 422 if (pageSetup !is null) OS.g_object_unref (pageSetup); | |
| 423 if (cairo !is null) Cairo.cairo_destroy (cairo); | |
| 424 if (printJob !is null) OS.g_object_unref (printJob); | |
| 425 printer = null; | |
| 426 settings = null; | |
| 427 pageSetup = null; | |
| 428 cairo = null; | |
| 429 printJob = null; | |
| 430 } | |
| 431 | |
| 432 /** | |
| 433 * Ends the current print job. | |
| 434 * | |
| 435 * @exception DWTException <ul> | |
| 436 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 437 * </ul> | |
| 438 * | |
| 439 * @see #startJob | |
| 440 * @see #startPage | |
| 441 * @see #endPage | |
| 442 */ | |
| 443 public void endJob() { | |
| 444 checkDevice(); | |
| 445 if (printJob is null) return; | |
| 446 Cairo.cairo_surface_finish(surface); | |
| 447 OS.gtk_print_job_send(printJob, null, null, null ); | |
| 448 } | |
| 449 | |
| 450 /** | |
| 451 * Cancels a print job in progress. | |
| 452 * | |
| 453 * @exception DWTException <ul> | |
| 454 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 455 * </ul> | |
| 456 */ | |
| 457 public void cancelJob() { | |
| 458 checkDevice(); | |
| 459 if (printJob is null) return; | |
| 460 //TODO: Need to implement (waiting on gtk bug 339323) | |
| 461 //OS.g_object_unref(printJob); | |
| 462 //printJob = 0; | |
| 463 } | |
| 464 | |
| 465 /** | |
| 466 * Starts a page and returns true if the page started successfully | |
| 467 * and false otherwise. | |
| 468 * <p> | |
| 469 * After calling startJob, this method may be called any number of times | |
| 470 * along with a matching endPage. | |
| 471 * </p> | |
| 472 * | |
| 473 * @return true if the page started successfully and false otherwise. | |
| 474 * | |
| 475 * @exception DWTException <ul> | |
| 476 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 477 * </ul> | |
| 478 * | |
| 479 * @see #endPage | |
| 480 * @see #startJob | |
| 481 * @see #endJob | |
| 482 */ | |
| 483 public bool startPage() { | |
| 484 checkDevice(); | |
| 485 if (printJob is null) return false; | |
| 486 double width = OS.gtk_page_setup_get_paper_width (pageSetup, OS.GTK_UNIT_POINTS); | |
| 487 double height = OS.gtk_page_setup_get_paper_height (pageSetup, OS.GTK_UNIT_POINTS); | |
| 488 int type = Cairo.cairo_surface_get_type (surface); | |
| 489 switch (type) { | |
| 490 case Cairo.CAIRO_SURFACE_TYPE_PS: | |
| 491 Cairo.cairo_ps_surface_set_size (surface, width, height); | |
| 492 break; | |
| 493 case Cairo.CAIRO_SURFACE_TYPE_PDF: | |
| 494 Cairo.cairo_pdf_surface_set_size (surface, width, height); | |
| 495 break; | |
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496 default: |
| 91 | 497 } |
| 498 return true; | |
| 499 } | |
| 500 | |
| 501 /** | |
| 502 * Ends the current page. | |
| 503 * | |
| 504 * @exception DWTException <ul> | |
| 505 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 506 * </ul> | |
| 507 * | |
| 508 * @see #startPage | |
| 509 * @see #startJob | |
| 510 * @see #endJob | |
| 511 */ | |
| 512 public void endPage() { | |
| 513 checkDevice(); | |
| 514 if (cairo !is null) Cairo.cairo_show_page(cairo); | |
| 515 } | |
| 516 | |
| 517 /** | |
| 518 * Returns a point whose x coordinate is the horizontal | |
| 519 * dots per inch of the printer, and whose y coordinate | |
| 520 * is the vertical dots per inch of the printer. | |
| 521 * | |
| 522 * @return the horizontal and vertical DPI | |
| 523 * | |
| 524 * @exception DWTException <ul> | |
| 525 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 526 * </ul> | |
| 527 */ | |
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528 public override Point getDPI() { |
| 91 | 529 checkDevice(); |
| 530 int resolution = OS.gtk_print_settings_get_resolution(settings); | |
| 531 if (DEBUG) tango.io.Stdout.Stdout.formatln("print_settings.resolution={}", resolution); | |
| 532 //TODO: Return 72 (1/72 inch = 1 point) until gtk bug 346245 is fixed | |
| 533 //TODO: Fix this: gtk_print_settings_get_resolution returns 0? (see gtk bug 346252) | |
| 534 if (true || resolution is 0) return new Point(72, 72); | |
| 535 return new Point(resolution, resolution); | |
| 536 } | |
| 537 | |
| 538 /** | |
| 539 * Returns a rectangle describing the receiver's size and location. | |
| 540 * For a printer, this is the size of a physical page, in pixels. | |
| 541 * | |
| 542 * @return the bounding rectangle | |
| 543 * | |
| 544 * @exception DWTException <ul> | |
| 545 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 546 * </ul> | |
| 547 * | |
| 548 * @see #getClientArea | |
| 549 * @see #computeTrim | |
| 550 */ | |
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551 public override Rectangle getBounds() { |
| 91 | 552 checkDevice(); |
| 553 //TODO: We are supposed to return this in pixels, but GTK_UNIT_PIXELS is currently not implemented (gtk bug 346245) | |
| 554 double width = OS.gtk_page_setup_get_paper_width (pageSetup, OS.GTK_UNIT_POINTS); | |
| 555 double height = OS.gtk_page_setup_get_paper_height (pageSetup, OS.GTK_UNIT_POINTS); | |
| 556 return new Rectangle(0, 0, cast(int) width, cast(int) height); | |
| 557 } | |
| 558 | |
| 559 /** | |
| 560 * Returns a rectangle which describes the area of the | |
| 561 * receiver which is capable of displaying data. | |
| 562 * For a printer, this is the size of the printable area | |
| 563 * of a page, in pixels. | |
| 564 * | |
| 565 * @return the client area | |
| 566 * | |
| 567 * @exception DWTException <ul> | |
| 568 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 569 * </ul> | |
| 570 * | |
| 571 * @see #getBounds | |
| 572 * @see #computeTrim | |
| 573 */ | |
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574 public override Rectangle getClientArea() { |
| 91 | 575 checkDevice(); |
| 576 //TODO: We are supposed to return this in pixels, but GTK_UNIT_PIXELS is currently not implemented (gtk bug 346245) | |
| 577 double width = OS.gtk_page_setup_get_page_width(pageSetup, OS.GTK_UNIT_POINTS); | |
| 578 double height = OS.gtk_page_setup_get_page_height(pageSetup, OS.GTK_UNIT_POINTS); | |
| 579 return new Rectangle(0, 0, cast(int) width, cast(int) height); | |
| 580 } | |
| 581 | |
| 582 /** | |
| 583 * Given a desired <em>client area</em> for the receiver | |
| 584 * (as described by the arguments), returns the bounding | |
| 585 * rectangle which would be required to produce that client | |
| 586 * area. | |
| 587 * <p> | |
| 588 * In other words, it returns a rectangle such that, if the | |
| 589 * receiver's bounds were set to that rectangle, the area | |
| 590 * of the receiver which is capable of displaying data | |
| 591 * (that is, not covered by the "trimmings") would be the | |
| 592 * rectangle described by the arguments (relative to the | |
| 593 * receiver's parent). | |
| 594 * </p><p> | |
| 595 * Note that there is no setBounds for a printer. This method | |
| 596 * is usually used by passing in the client area (the 'printable | |
| 597 * area') of the printer. It can also be useful to pass in 0, 0, 0, 0. | |
| 598 * </p> | |
| 599 * | |
| 600 * @param x the desired x coordinate of the client area | |
| 601 * @param y the desired y coordinate of the client area | |
| 602 * @param width the desired width of the client area | |
| 603 * @param height the desired height of the client area | |
| 604 * @return the required bounds to produce the given client area | |
| 605 * | |
| 606 * @exception DWTException <ul> | |
| 607 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 608 * </ul> | |
| 609 * | |
| 610 * @see #getBounds | |
| 611 * @see #getClientArea | |
| 612 */ | |
| 613 public Rectangle computeTrim(int x, int y, int width, int height) { | |
| 614 checkDevice(); | |
| 615 //TODO: We are supposed to return this in pixels, but GTK_UNIT_PIXELS is currently not implemented (gtk bug 346245) | |
| 616 double printWidth = OS.gtk_page_setup_get_page_width(pageSetup, OS.GTK_UNIT_POINTS); | |
| 617 double printHeight = OS.gtk_page_setup_get_page_height(pageSetup, OS.GTK_UNIT_POINTS); | |
| 618 double paperWidth = OS.gtk_page_setup_get_paper_width (pageSetup, OS.GTK_UNIT_POINTS); | |
| 619 double paperHeight = OS.gtk_page_setup_get_paper_height (pageSetup, OS.GTK_UNIT_POINTS); | |
| 620 double printX = -OS.gtk_page_setup_get_left_margin(pageSetup, OS.GTK_UNIT_POINTS); | |
| 621 double printY = -OS.gtk_page_setup_get_top_margin(pageSetup, OS.GTK_UNIT_POINTS); | |
| 622 double hTrim = paperWidth - printWidth; | |
| 623 double vTrim = paperHeight - printHeight; | |
| 624 return new Rectangle(x + cast(int)printX, y + cast(int)printY, width + cast(int)hTrim, height + cast(int)vTrim); | |
| 625 } | |
| 626 | |
| 627 /** | |
| 628 * Creates the printer handle. | |
| 629 * This method is called internally by the instance creation | |
| 630 * mechanism of the <code>Device</code> class. | |
| 631 * @param deviceData the device data | |
| 632 */ | |
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633 protected override void create(DeviceData deviceData) { |
| 91 | 634 this.data = cast(PrinterData)deviceData; |
| 635 if (OS.GTK_VERSION < OS.buildVERSION (2, 10, 0)) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 636 printer = gtkPrinterFromPrinterData(); | |
| 637 if (printer is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 638 } | |
| 639 | |
| 640 /** | |
| 641 * Initializes any internal resources needed by the | |
| 642 * device. | |
| 643 * <p> | |
| 644 * This method is called after <code>create</code>. | |
| 645 * </p><p> | |
| 646 * If subclasses reimplement this method, they must | |
| 647 * call the <code>super</code> implementation. | |
| 648 * </p> | |
| 649 * | |
| 650 * @see #create | |
| 651 */ | |
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652 protected override void init() { |
| 91 | 653 super.init (); |
| 654 settings = OS.gtk_print_settings_new(); | |
| 655 pageSetup = OS.gtk_page_setup_new(); | |
| 656 if (data.otherData !is null) { | |
| 657 /* Retreive stored printer_settings data. */ | |
| 658 settingsData = data.otherData; | |
| 659 start = end = 0; | |
| 660 while (end < settingsData.length && settingsData[end] !is 0) { | |
| 661 start = end; | |
| 662 while (end < settingsData.length && settingsData[end] !is 0) end++; | |
| 663 end++; | |
| 664 char [] keyBuffer = new char [end - start]; | |
| 665 System.arraycopy (settingsData, start, keyBuffer, 0, keyBuffer.length); | |
| 666 start = end; | |
| 667 while (end < settingsData.length && settingsData[end] !is 0) end++; | |
| 668 end++; | |
| 669 char [] valueBuffer = new char [end - start]; | |
| 670 System.arraycopy (settingsData, start, valueBuffer, 0, valueBuffer.length); | |
| 671 OS.gtk_print_settings_set(settings, keyBuffer.ptr, valueBuffer.ptr); | |
| 672 if (DEBUG) tango.io.Stdout.Stdout.formatln("{}: {}", keyBuffer, valueBuffer); | |
| 673 } | |
| 674 end++; // skip extra null terminator | |
| 675 | |
| 676 /* Retreive stored page_setup data. | |
| 677 * Note that page_setup properties must be stored (in PrintDialog) and restored (here) in the same order. | |
| 678 */ | |
| 679 OS.gtk_page_setup_set_orientation(pageSetup, restoreInt("orientation")); //$NON-NLS-1$ | |
| 680 OS.gtk_page_setup_set_top_margin(pageSetup, restoreDouble("top_margin"), OS.GTK_UNIT_MM); //$NON-NLS-1$ | |
| 681 OS.gtk_page_setup_set_bottom_margin(pageSetup, restoreDouble("bottom_margin"), OS.GTK_UNIT_MM); //$NON-NLS-1$ | |
| 682 OS.gtk_page_setup_set_left_margin(pageSetup, restoreDouble("left_margin"), OS.GTK_UNIT_MM); //$NON-NLS-1$ | |
| 683 OS.gtk_page_setup_set_right_margin(pageSetup, restoreDouble("right_margin"), OS.GTK_UNIT_MM); //$NON-NLS-1$ | |
| 684 char [] name = restoreBytes("paper_size_name", true); //$NON-NLS-1$ | |
| 685 char [] display_name = restoreBytes("paper_size_display_name", true); //$NON-NLS-1$ | |
| 686 char [] ppd_name = restoreBytes("paper_size_ppd_name", true); //$NON-NLS-1$ | |
| 687 double width = restoreDouble("paper_size_width"); //$NON-NLS-1$ | |
| 688 double height = restoreDouble("paper_size_height"); //$NON-NLS-1$ | |
| 689 bool custom = restoreBoolean("paper_size_is_custom"); //$NON-NLS-1$ | |
| 690 GtkPaperSize* paper_size; | |
| 691 if (custom) { | |
| 692 if (ppd_name.length > 0) { | |
| 693 paper_size = OS.gtk_paper_size_new_from_ppd(ppd_name.ptr, display_name.ptr, width, height); | |
| 694 } else { | |
| 695 paper_size = OS.gtk_paper_size_new_custom(name.ptr, display_name.ptr, width, height, OS.GTK_UNIT_MM); | |
| 696 } | |
| 697 } else { | |
| 698 paper_size = OS.gtk_paper_size_new(name.ptr); | |
| 699 } | |
| 700 OS.gtk_page_setup_set_paper_size(pageSetup, paper_size); | |
| 701 OS.g_free(paper_size); | |
| 702 } | |
| 703 | |
| 704 /* Set values of settings from PrinterData. */ | |
| 705 setScope(settings, data.scope_, data.startPage, data.endPage); | |
| 706 //TODO: Should we look at printToFile, or driver/name for "Print to File", or both? (see gtk bug 345590) | |
| 707 if (data.printToFile) { | |
| 708 char* buffer = tango.stdc.stringz.toStringz( data.fileName ); | |
| 709 OS.gtk_print_settings_set(settings, OS.GTK_PRINT_SETTINGS_OUTPUT_URI.ptr, buffer); | |
| 710 } | |
| 195 | 711 if (data.driver.equals("GtkPrintBackendFile") && data.name.equals("Print to File")) { //$NON-NLS-1$ //$NON-NLS-2$ |
| 91 | 712 char* buffer = tango.stdc.stringz.toStringz( data.fileName ); |
| 713 OS.gtk_print_settings_set(settings, OS.GTK_PRINT_SETTINGS_OUTPUT_URI.ptr, buffer); | |
| 714 } | |
| 715 OS.gtk_print_settings_set_n_copies(settings, data.copyCount); | |
| 716 OS.gtk_print_settings_set_collate(settings, data.collate); | |
| 717 } | |
| 718 | |
| 719 /** | |
| 720 * Returns a <code>PrinterData</code> object representing the | |
| 721 * target printer for this print job. | |
| 722 * | |
| 723 * @return a PrinterData object describing the receiver | |
| 724 */ | |
| 725 public PrinterData getPrinterData() { | |
| 726 checkDevice(); | |
| 727 return data; | |
| 728 } | |
| 729 | |
| 730 } |