3 // Copyright (C) 2005, 2007 Novell, Inc. http://www.novell.com
5 // Permission is hereby granted, free of charge, to any person obtaining
6 // a copy of this software and associated documentation files (the
7 // "Software"), to deal in the Software without restriction, including
8 // without limitation the rights to use, copy, modify, merge, publish,
9 // distribute, sublicense, and/or sell copies of the Software, and to
10 // permit persons to whom the Software is furnished to do so, subject to
11 // the following conditions:
13 // The above copyright notice and this permission notice shall be
14 // included in all copies or substantial portions of the Software.
16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 // Jordi Mas i Hernandez, jordimash@gmail.com
29 using System.Runtime.InteropServices;
30 using System.Collections;
31 using System.Collections.Specialized;
32 using System.Drawing.Printing;
33 using System.ComponentModel;
34 using System.Drawing.Imaging;
38 namespace System.Drawing.Printing
40 internal class PrintingServicesUnix : PrintingServices
42 #region Private Fields
44 private static Hashtable doc_info = new Hashtable ();
45 private static bool cups_installed;
47 //private string printer_name;
49 private static Hashtable installed_printers;
50 private static string default_printer = String.Empty;
56 internal PrintingServicesUnix () {
59 static PrintingServicesUnix () {
60 installed_printers = new Hashtable ();
61 CheckCupsInstalled ();
68 internal static PrinterSettings.StringCollection InstalledPrinters {
71 PrinterSettings.StringCollection list = new PrinterSettings.StringCollection (new string[] {});
72 foreach (object key in installed_printers.Keys) {
73 list.Add (key.ToString());
79 internal override string DefaultPrinter {
81 if (installed_printers.Count == 0)
83 return default_printer;
93 /// Do a cups call to check if it is installed
95 private static void CheckCupsInstalled ()
100 catch (DllNotFoundException) {
101 Console.WriteLine("libcups not found. To have printing support, you need cups installed");
102 cups_installed = false;
106 cups_installed = true;
110 /// Open the printer's PPD file
112 /// <param name="printer">Printer name, returned from cupsGetDests</param>
113 private IntPtr OpenPrinter (string printer)
116 IntPtr ptr = cupsGetPPD (printer);
117 string ppd_filename = Marshal.PtrToStringAnsi (ptr);
118 IntPtr ppd_handle = ppdOpenFile (ppd_filename);
122 Console.WriteLine ("There was an error opening the printer {0}. Please check your cups installation.");
128 /// Close the printer file
130 /// <param name="handle">PPD handle</param>
131 private void ClosePrinter (ref IntPtr handle)
134 if (handle != IntPtr.Zero)
138 handle = IntPtr.Zero;
142 private static int OpenDests (ref IntPtr ptr) {
144 return cupsGetDests (ref ptr);
152 private static void CloseDests (ref IntPtr ptr, int count) {
154 if (ptr != IntPtr.Zero)
155 cupsFreeDests (count, ptr);
163 /// Checks if a printer has a valid PPD file. Caches the result unless force is true
165 /// <param name="force">Does the check disregarding the last cached value if true</param>
166 internal override bool IsPrinterValid(string printer)
168 if (!cups_installed || printer == null | printer == String.Empty)
171 return installed_printers.Contains (printer);
173 if (!force && this.printer_name != null && String.Intern(this.printer_name).Equals(printer))
174 return is_printer_valid;
176 IntPtr ptr = cupsGetPPD (printer);
177 string ppd_filename = Marshal.PtrToStringAnsi (ptr);
178 is_printer_valid = ppd_filename != null;
179 this.printer_name = printer;
180 return is_printer_valid;
185 /// Loads the printer settings and initializes the PrinterSettings and PageSettings fields
187 /// <param name="printer">Printer name</param>
188 /// <param name="settings">PrinterSettings object to initialize</param>
189 internal override void LoadPrinterSettings (string printer, PrinterSettings settings)
191 if (cups_installed == false || (printer == null) || (printer == String.Empty))
194 if (installed_printers.Count == 0)
197 if (((SysPrn.Printer)installed_printers[printer]).Settings != null) {
198 SysPrn.Printer p = (SysPrn.Printer) installed_printers[printer];
199 settings.can_duplex = p.Settings.can_duplex;
200 settings.is_plotter = p.Settings.is_plotter;
201 settings.landscape_angle = p.Settings.landscape_angle;
202 settings.maximum_copies = p.Settings.maximum_copies;
203 settings.paper_sizes = p.Settings.paper_sizes;
204 settings.paper_sources = p.Settings.paper_sources;
205 settings.printer_capabilities = p.Settings.printer_capabilities;
206 settings.printer_resolutions = p.Settings.printer_resolutions;
207 settings.supports_color = p.Settings.supports_color;
211 settings.PrinterCapabilities.Clear ();
213 IntPtr dests = IntPtr.Zero, ptr = IntPtr.Zero, ptr_printer, ppd_handle = IntPtr.Zero;
214 string name = String.Empty;
215 CUPS_DESTS printer_dest;
217 int ret = 0, cups_dests_size;
218 NameValueCollection options, paper_names, paper_sources;
221 ret = OpenDests (ref dests);
225 cups_dests_size = Marshal.SizeOf (typeof(CUPS_DESTS));
227 for (int i = 0; i < ret; i++) {
228 ptr_printer = (IntPtr) Marshal.ReadIntPtr (ptr);
229 if (Marshal.PtrToStringAnsi (ptr_printer).Equals(printer)) {
233 ptr = (IntPtr) ((long)ptr + cups_dests_size);
236 if (!name.Equals(printer)) {
240 ppd_handle = OpenPrinter (printer);
241 if (ppd_handle == IntPtr.Zero)
244 printer_dest = (CUPS_DESTS) Marshal.PtrToStructure (ptr, typeof (CUPS_DESTS));
245 options = new NameValueCollection();
246 paper_names = new NameValueCollection();
247 paper_sources = new NameValueCollection();
250 LoadPrinterOptions (printer_dest.options, printer_dest.num_options, ppd_handle, options,
251 paper_names, out defsize,
252 paper_sources, out defsource);
254 if (settings.paper_sizes == null)
255 settings.paper_sizes = new PrinterSettings.PaperSizeCollection (new PaperSize [] {});
257 settings.paper_sizes.Clear();
259 if (settings.paper_sources == null)
260 settings.paper_sources = new PrinterSettings.PaperSourceCollection (new PaperSource [] {});
262 settings.paper_sources.Clear();
264 settings.DefaultPageSettings.PaperSource = LoadPrinterPaperSources (settings, defsource, paper_sources);
265 settings.DefaultPageSettings.PaperSize = LoadPrinterPaperSizes (ppd_handle, settings, defsize, paper_names);
266 LoadPrinterResolutionsAndDefault (printer, settings, ppd_handle);
268 ppd = (PPD_FILE) Marshal.PtrToStructure (ppd_handle, typeof (PPD_FILE));
269 settings.landscape_angle = ppd.landscape;
270 settings.supports_color = (ppd.color_device == 0) ? false : true;
271 settings.can_duplex = options["Duplex"] != null;
273 ClosePrinter (ref ppd_handle);
275 ((SysPrn.Printer)installed_printers[printer]).Settings = settings;
278 CloseDests (ref dests, ret);
283 /// Loads the global options of a printer plus the paper types and trays supported,
284 /// and sets the default paper size and source tray.
286 /// <param name="options">The options field of a printer's CUPS_DESTS structure</param>
287 /// <param name="numOptions">The number of options of the printer</param>
288 /// <param name="ppd">A ppd handle for the printer, returned by ppdOpen</param>
289 /// <param name="list">The list of options</param>
290 /// <param name="paper_names">A list of types of paper (PageSize)</param>
291 /// <param name="defsize">The default paper size, set by LoadOptionList</param>
292 /// <param name="paper_sources">A list of trays(InputSlot) </param>
293 /// <param name="defsource">The default source tray, set by LoadOptionList</param>
294 private static void LoadPrinterOptions(IntPtr options, int numOptions, IntPtr ppd,
295 NameValueCollection list,
296 NameValueCollection paper_names, out string defsize,
297 NameValueCollection paper_sources, out string defsource)
299 CUPS_OPTIONS cups_options;
300 string option_name, option_value;
301 int cups_size = Marshal.SizeOf(typeof(CUPS_OPTIONS));
303 for (int j = 0; j < numOptions; j++)
305 cups_options = (CUPS_OPTIONS) Marshal.PtrToStructure(options, typeof(CUPS_OPTIONS));
306 option_name = Marshal.PtrToStringAnsi(cups_options.name);
307 option_value = Marshal.PtrToStringAnsi(cups_options.val);
310 Console.WriteLine("{0} = {1}", option_name, option_value);
313 list.Add(option_name, option_value);
315 options = (IntPtr) ((long)options + cups_size);
318 LoadOptionList (ppd, "PageSize", paper_names, out defsize);
319 LoadOptionList (ppd, "InputSlot", paper_sources, out defsource);
323 /// Loads the global options of a printer.
325 /// <param name="options">The options field of a printer's CUPS_DESTS structure</param>
326 /// <param name="numOptions">The number of options of the printer</param>
327 private static NameValueCollection LoadPrinterOptions(IntPtr options, int numOptions)
329 CUPS_OPTIONS cups_options;
330 string option_name, option_value;
331 int cups_size = Marshal.SizeOf (typeof(CUPS_OPTIONS));
332 NameValueCollection list = new NameValueCollection ();
333 for (int j = 0; j < numOptions; j++)
335 cups_options = (CUPS_OPTIONS) Marshal.PtrToStructure(options, typeof(CUPS_OPTIONS));
336 option_name = Marshal.PtrToStringAnsi (cups_options.name);
337 option_value = Marshal.PtrToStringAnsi (cups_options.val);
340 Console.WriteLine("{0} = {1}", option_name, option_value);
343 list.Add (option_name, option_value);
345 options = (IntPtr) ((long)options + cups_size);
351 /// Loads a printer's options (selection of paper sizes, paper sources, etc)
352 /// and sets the default option from the selected list.
354 /// <param name="ppd">Printer ppd file handle</param>
355 /// <param name="option_name">Name of the option group to load</param>
356 /// <param name="list">List of loaded options</param>
357 /// <param name="defoption">The default option from the loaded options list</param>
358 private static void LoadOptionList (IntPtr ppd, string option_name, NameValueCollection list, out string defoption) {
360 IntPtr ptr = IntPtr.Zero;
361 PPD_OPTION ppd_option;
363 int choice_size = Marshal.SizeOf(typeof(PPD_CHOICE));
366 ptr = ppdFindOption (ppd, option_name);
367 if (ptr != IntPtr.Zero)
369 ppd_option = (PPD_OPTION) Marshal.PtrToStructure (ptr, typeof (PPD_OPTION));
371 Console.WriteLine (" OPTION key:{0} def:{1} text: {2}", ppd_option.keyword, ppd_option.defchoice, ppd_option.text);
373 defoption = ppd_option.defchoice;
374 ptr = ppd_option.choices;
375 for (int c = 0; c < ppd_option.num_choices; c++) {
376 choice = (PPD_CHOICE) Marshal.PtrToStructure (ptr, typeof (PPD_CHOICE));
377 list.Add(choice.choice, choice.text);
379 Console.WriteLine (" choice:{0} - text: {1}", choice.choice, choice.text);
382 ptr = (IntPtr) ((long)ptr + choice_size);
388 /// Loads a printer's available resolutions
390 /// <param name="printer">Printer name</param>
391 /// <param name="settings">PrinterSettings object to fill</param>
392 internal override void LoadPrinterResolutions (string printer, PrinterSettings settings)
394 IntPtr ppd_handle = OpenPrinter (printer);
395 if (ppd_handle == IntPtr.Zero)
398 LoadPrinterResolutionsAndDefault (printer, settings, ppd_handle);
400 ClosePrinter (ref ppd_handle);
404 /// Create a PrinterResolution from a string Resolution that is set in the PPD option.
405 /// An example of Resolution is "600x600dpi" or "600dpi". Returns null if malformed or "Unknown".
407 private PrinterResolution ParseResolution (string resolution)
409 if (String.IsNullOrEmpty (resolution))
412 int dpiIndex = resolution.IndexOf ("dpi");
415 // Resolution is "Unknown" or unparsable
418 resolution = resolution.Substring (0, dpiIndex);
420 int x_resolution, y_resolution;
422 if (resolution.Contains ("x")) {
423 string[] resolutions = resolution.Split (new[] {'x'});
424 x_resolution = Convert.ToInt32 (resolutions [0]);
425 y_resolution = Convert.ToInt32 (resolutions [1]);
427 x_resolution = Convert.ToInt32 (resolution);
428 y_resolution = x_resolution;
430 } catch (Exception) {
434 return new PrinterResolution (x_resolution, y_resolution, PrinterResolutionKind.Custom);
438 /// Loads a printer's paper sizes. Returns the default PaperSize, and fills a list of paper_names for use in dialogues
440 /// <param name="ppd_handle">PPD printer file handle</param>
441 /// <param name="settings">PrinterSettings object to fill</param>
442 /// <param name="def_size">Default paper size, from the global options of the printer</param>
443 /// <param name="paper_names">List of available paper sizes that gets filled</param>
444 private PaperSize LoadPrinterPaperSizes(IntPtr ppd_handle, PrinterSettings settings,
445 string def_size, NameValueCollection paper_names)
453 PaperSize defsize = new PaperSize ("A4", 827, 1169, GetPaperKind (827, 1169), true);
454 ppd = (PPD_FILE) Marshal.PtrToStructure (ppd_handle, typeof (PPD_FILE));
457 for (int i = 0; i < ppd.num_sizes; i++) {
458 size = (PPD_SIZE) Marshal.PtrToStructure (ptr, typeof (PPD_SIZE));
459 real_name = paper_names[size.name];
460 w = size.width * 100 / 72;
461 h = size.length * 100 / 72;
462 PaperKind kind = GetPaperKind ((int) w, (int) h);
463 ps = new PaperSize (real_name, (int) w, (int) h, kind, def_size == kind.ToString ());
465 if (def_size == ps.Kind.ToString ())
467 settings.paper_sizes.Add (ps);
468 ptr = (IntPtr) ((long)ptr + Marshal.SizeOf (size));
476 /// Loads a printer's paper sources (trays). Returns the default PaperSource, and fills a list of paper_sources for use in dialogues
478 /// <param name="settings">PrinterSettings object to fill</param>
479 /// <param name="def_source">Default paper source, from the global options of the printer</param>
480 /// <param name="paper_sources">List of available paper sizes that gets filled</param>
481 private PaperSource LoadPrinterPaperSources (PrinterSettings settings, string def_source,
482 NameValueCollection paper_sources)
484 PaperSourceKind kind;
485 PaperSource defsource = null;
486 foreach(string source in paper_sources) {
490 kind = PaperSourceKind.AutomaticFeed;
493 kind = PaperSourceKind.AutomaticFeed;
496 kind = PaperSourceKind.AutomaticFeed;
499 kind = PaperSourceKind.Envelope;
502 kind = PaperSourceKind.Manual;
505 kind = PaperSourceKind.Custom;
508 settings.paper_sources.Add (new PaperSource (paper_sources[source], kind, def_source == source));
509 if (def_source == source)
510 defsource = settings.paper_sources[settings.paper_sources.Count-1];
513 if (defsource == null && settings.paper_sources.Count > 0)
514 return settings.paper_sources[0];
519 /// Sets the available resolutions and default resolution from a
520 /// printer's PPD file into settings.
522 private void LoadPrinterResolutionsAndDefault (string printer,
523 PrinterSettings settings, IntPtr ppd_handle)
525 if (settings.printer_resolutions == null)
526 settings.printer_resolutions = new PrinterSettings.PrinterResolutionCollection (new PrinterResolution [] {});
528 settings.printer_resolutions.Clear ();
530 var printer_resolutions = new NameValueCollection ();
531 string defresolution;
532 LoadOptionList (ppd_handle, "Resolution", printer_resolutions, out defresolution);
533 foreach (var resolution in printer_resolutions.Keys) {
534 var new_resolution = ParseResolution (resolution.ToString ());
535 settings.PrinterResolutions.Add (new_resolution);
538 var default_resolution = ParseResolution (defresolution);
540 if (default_resolution == null)
541 default_resolution = ParseResolution ("300dpi");
542 if (printer_resolutions.Count == 0)
543 settings.PrinterResolutions.Add (default_resolution);
545 settings.DefaultPageSettings.PrinterResolution = default_resolution;
550 /// <param name="load"></param>
551 /// <param name="def_printer"></param>
552 private static void LoadPrinters()
554 installed_printers.Clear ();
555 if (cups_installed == false)
558 IntPtr dests = IntPtr.Zero, ptr_printers;
561 int cups_dests_size = Marshal.SizeOf(typeof(CUPS_DESTS));
562 string name, first, type, status, comment;
563 first = type = status = comment = String.Empty;
567 n_printers = OpenDests (ref dests);
569 ptr_printers = dests;
570 for (int i = 0; i < n_printers; i++) {
571 printer = (CUPS_DESTS) Marshal.PtrToStructure (ptr_printers, typeof (CUPS_DESTS));
572 name = Marshal.PtrToStringAnsi (printer.name);
574 if (printer.is_default == 1)
575 default_printer = name;
577 if (first.Equals (String.Empty))
580 NameValueCollection options = LoadPrinterOptions(printer.options, printer.num_options);
582 if (options["printer-state"] != null)
583 state = Int32.Parse(options["printer-state"]);
585 if (options["printer-comment"] != null)
586 comment = options["printer-state"];
600 installed_printers.Add (name, new SysPrn.Printer (String.Empty, type, status, comment));
602 ptr_printers = (IntPtr) ((long)ptr_printers + cups_dests_size);
607 CloseDests (ref dests, n_printers);
610 if (default_printer.Equals (String.Empty))
611 default_printer = first;
615 /// Gets a printer's settings for use in the print dialogue
617 /// <param name="printer"></param>
618 /// <param name="port"></param>
619 /// <param name="type"></param>
620 /// <param name="status"></param>
621 /// <param name="comment"></param>
622 internal override void GetPrintDialogInfo (string printer, ref string port, ref string type, ref string status, ref string comment) {
623 int count = 0, state = -1;
625 CUPS_DESTS cups_dests;
626 IntPtr dests = IntPtr.Zero, ptr_printers, ptr_printer;
627 int cups_dests_size = Marshal.SizeOf(typeof(CUPS_DESTS));
629 if (cups_installed == false)
633 count = OpenDests (ref dests);
638 ptr_printers = dests;
640 for (int i = 0; i < count; i++) {
641 ptr_printer = (IntPtr) Marshal.ReadIntPtr (ptr_printers);
642 if (Marshal.PtrToStringAnsi (ptr_printer).Equals(printer)) {
646 ptr_printers = (IntPtr) ((long)ptr_printers + cups_dests_size);
652 cups_dests = (CUPS_DESTS) Marshal.PtrToStructure (ptr_printers, typeof (CUPS_DESTS));
654 NameValueCollection options = LoadPrinterOptions(cups_dests.options, cups_dests.num_options);
656 if (options["printer-state"] != null)
657 state = Int32.Parse(options["printer-state"]);
659 if (options["printer-comment"] != null)
660 comment = options["printer-state"];
675 CloseDests (ref dests, count);
680 /// Returns the appropriate PaperKind for the width and height
682 /// <param name="width"></param>
683 /// <param name="height"></param>
684 private PaperKind GetPaperKind (int width, int height)
686 if (width == 827 && height == 1169)
688 if (width == 583 && height == 827)
690 if (width == 717 && height == 1012)
692 if (width == 693 && height == 984)
693 return PaperKind.B5Envelope;
694 if (width == 638 && height == 902)
695 return PaperKind.C5Envelope;
696 if (width == 449 && height == 638)
697 return PaperKind.C6Envelope;
698 if (width == 1700 && height == 2200)
699 return PaperKind.CSheet;
700 if (width == 433 && height == 866)
701 return PaperKind.DLEnvelope;
702 if (width == 2200 && height == 3400)
703 return PaperKind.DSheet;
704 if (width == 3400 && height == 4400)
705 return PaperKind.ESheet;
706 if (width == 725 && height == 1050)
707 return PaperKind.Executive;
708 if (width == 850 && height == 1300)
709 return PaperKind.Folio;
710 if (width == 850 && height == 1200)
711 return PaperKind.GermanStandardFanfold;
712 if (width == 1700 && height == 1100)
713 return PaperKind.Ledger;
714 if (width == 850 && height == 1400)
715 return PaperKind.Legal;
716 if (width == 927 && height == 1500)
717 return PaperKind.LegalExtra;
718 if (width == 850 && height == 1100)
719 return PaperKind.Letter;
720 if (width == 927 && height == 1200)
721 return PaperKind.LetterExtra;
722 if (width == 850 && height == 1269)
723 return PaperKind.LetterPlus;
724 if (width == 387 && height == 750)
725 return PaperKind.MonarchEnvelope;
726 if (width == 387 && height == 887)
727 return PaperKind.Number9Envelope;
728 if (width == 413 && height == 950)
729 return PaperKind.Number10Envelope;
730 if (width == 450 && height == 1037)
731 return PaperKind.Number11Envelope;
732 if (width == 475 && height == 1100)
733 return PaperKind.Number12Envelope;
734 if (width == 500 && height == 1150)
735 return PaperKind.Number14Envelope;
736 if (width == 363 && height == 650)
737 return PaperKind.PersonalEnvelope;
738 if (width == 1000 && height == 1100)
739 return PaperKind.Standard10x11;
740 if (width == 1000 && height == 1400)
741 return PaperKind.Standard10x14;
742 if (width == 1100 && height == 1700)
743 return PaperKind.Standard11x17;
744 if (width == 1200 && height == 1100)
745 return PaperKind.Standard12x11;
746 if (width == 1500 && height == 1100)
747 return PaperKind.Standard15x11;
748 if (width == 900 && height == 1100)
749 return PaperKind.Standard9x11;
750 if (width == 550 && height == 850)
751 return PaperKind.Statement;
752 if (width == 1100 && height == 1700)
753 return PaperKind.Tabloid;
754 if (width == 1487 && height == 1100)
755 return PaperKind.USStandardFanfold;
757 return PaperKind.Custom;
762 #region Print job methods
764 static string tmpfile;
767 /// Gets a pointer to an options list parsed from the printer's current settings, to use when setting up the printing job
769 /// <param name="printer_settings"></param>
770 /// <param name="page_settings"></param>
771 /// <param name="options"></param>
772 internal static int GetCupsOptions (PrinterSettings printer_settings, PageSettings page_settings, out IntPtr options)
774 options = IntPtr.Zero;
776 PaperSize size = page_settings.PaperSize;
777 int width = size.Width * 72 / 100;
778 int height = size.Height * 72 / 100;
780 StringBuilder sb = new StringBuilder();
782 "copies=" + printer_settings.Copies + " " +
783 "Collate=" + printer_settings.Collate + " " +
784 "ColorModel=" + (page_settings.Color ? "Color" : "Black") + " " +
785 "PageSize=" + String.Format ("Custom.{0}x{1}", width, height) + " " +
786 "landscape=" + page_settings.Landscape
789 if (printer_settings.CanDuplex)
791 if (printer_settings.Duplex == Duplex.Simplex)
792 sb.Append(" Duplex=None");
794 sb.Append(" Duplex=DuplexNoTumble");
797 return cupsParseOptions (sb.ToString(), 0, ref options);
800 internal static bool StartDoc (GraphicsPrinter gr, string doc_name, string output_file)
802 DOCINFO doc = (DOCINFO) doc_info[gr.Hdc];
803 doc.title = doc_name;
807 internal static bool EndDoc (GraphicsPrinter gr)
809 DOCINFO doc = (DOCINFO) doc_info[gr.Hdc];
811 gr.Graphics.Dispose (); // Dispose object to force surface finish
814 int options_count = GetCupsOptions (doc.settings, doc.default_page_settings, out options);
816 cupsPrintFile (doc.settings.PrinterName, doc.filename, doc.title, options_count, options);
817 cupsFreeOptions (options_count, options);
818 doc_info.Remove (gr.Hdc);
819 if (tmpfile != null) {
820 try { File.Delete (tmpfile); }
826 internal static bool StartPage (GraphicsPrinter gr)
831 internal static bool EndPage (GraphicsPrinter gr)
833 GdipGetPostScriptSavePage (gr.Hdc);
837 // Unfortunately, PrinterSettings and PageSettings couldn't be referencing each other,
838 // thus we need to pass them separately
839 internal static IntPtr CreateGraphicsContext (PrinterSettings settings, PageSettings default_page_settings)
841 IntPtr graphics = IntPtr.Zero;
843 if (!settings.PrintToFile) {
844 StringBuilder sb = new StringBuilder (1024);
845 int length = sb.Capacity;
846 cupsTempFile (sb, length);
847 name = sb.ToString ();
851 name = settings.PrintFileName;
853 PaperSize psize = default_page_settings.PaperSize;
855 if (default_page_settings.Landscape) { // Swap in case of landscape
856 width = psize.Height;
857 height = psize.Width;
860 height = psize.Height;
863 GdipGetPostScriptGraphicsContext (name,
866 default_page_settings.PrinterResolution.X,
867 default_page_settings.PrinterResolution.Y, ref graphics);
869 DOCINFO doc = new DOCINFO ();
871 doc.settings = settings;
872 doc.default_page_settings = default_page_settings;
873 doc_info.Add (graphics, doc);
882 [DllImport("libcups", CharSet=CharSet.Ansi)]
883 static extern int cupsGetDests (ref IntPtr dests);
885 // [DllImport("libcups", CharSet=CharSet.Ansi)]
886 // static extern void cupsGetDest (string name, string instance, int num_dests, ref IntPtr dests);
888 [DllImport("libcups")]
889 static extern void cupsFreeDests (int num_dests, IntPtr dests);
891 [DllImport("libcups", CharSet=CharSet.Ansi)]
892 static extern IntPtr cupsTempFile (StringBuilder sb, int len);
894 [DllImport("libcups", CharSet=CharSet.Ansi)]
895 static extern IntPtr cupsGetDefault ();
897 [DllImport("libcups", CharSet=CharSet.Ansi)]
898 static extern int cupsPrintFile (string printer, string filename, string title, int num_options, IntPtr options);
900 [DllImport("libcups", CharSet=CharSet.Ansi)]
901 static extern IntPtr cupsGetPPD (string printer);
903 [DllImport("libcups", CharSet=CharSet.Ansi)]
904 static extern IntPtr ppdOpenFile (string filename);
906 [DllImport("libcups", CharSet=CharSet.Ansi)]
907 static extern IntPtr ppdFindOption (IntPtr ppd_file, string keyword);
909 [DllImport("libcups")]
910 static extern void ppdClose (IntPtr ppd);
912 [DllImport ("libcups", CharSet=CharSet.Ansi)]
913 static extern int cupsParseOptions (string arg, int number_of_options, ref IntPtr options);
915 [DllImport("libcups")]
916 static extern void cupsFreeOptions (int number_options, IntPtr options);
918 [DllImport("gdiplus.dll", CharSet=CharSet.Ansi)]
919 static extern int GdipGetPostScriptGraphicsContext (string filename, int with, int height, double dpix, double dpiy, ref IntPtr graphics);
921 [DllImport("gdiplus.dll")]
922 static extern int GdipGetPostScriptSavePage (IntPtr graphics);
927 public struct DOCINFO
929 public PrinterSettings settings;
930 public PageSettings default_page_settings;
932 public string filename;
935 public struct PPD_SIZE
938 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=42)]
948 public struct PPD_GROUP
950 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=40)]
952 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=42)]
954 public int num_options;
955 public IntPtr options;
956 public int num_subgroups;
957 public IntPtr subgrups;
960 public struct PPD_OPTION
962 public byte conflicted;
963 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=41)]
964 public string keyword;
965 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=41)]
966 public string defchoice;
967 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=81)]
972 public int num_choices;
973 public IntPtr choices;
976 public struct PPD_CHOICE
979 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=41)]
980 public string choice;
981 [MarshalAs(UnmanagedType.ByValTStr, SizeConst=81)]
984 public IntPtr option;
987 public struct PPD_FILE
989 public int language_level;
990 public int color_device;
991 public int variable_sizes;
992 public int accurate_screens;
993 public int contone_only;
994 public int landscape;
995 public int model_number;
996 public int manual_copies;
997 public int throughput;
998 public int colorspace;
999 public IntPtr patches;
1000 public int num_emulations;
1001 public IntPtr emulations;
1002 public IntPtr jcl_begin;
1003 public IntPtr jcl_ps;
1004 public IntPtr jcl_end;
1005 public IntPtr lang_encoding;
1006 public IntPtr lang_version;
1007 public IntPtr modelname;
1008 public IntPtr ttrasterizer;
1009 public IntPtr manufacturer;
1010 public IntPtr product;
1011 public IntPtr nickname;
1012 public IntPtr shortnickname;
1013 public int num_groups;
1014 public IntPtr groups;
1015 public int num_sizes;
1016 public IntPtr sizes;
1018 /* There is more data after this that we are not using*/
1022 public struct CUPS_OPTIONS
1028 public struct CUPS_DESTS
1031 public IntPtr instance;
1032 public int is_default;
1033 public int num_options;
1034 public IntPtr options;
1040 class GlobalPrintingServicesUnix : GlobalPrintingServices
1042 internal override PrinterSettings.StringCollection InstalledPrinters {
1044 return PrintingServicesUnix.InstalledPrinters;
1048 internal override IntPtr CreateGraphicsContext (PrinterSettings settings, PageSettings default_page_settings)
1050 return PrintingServicesUnix.CreateGraphicsContext (settings, default_page_settings);
1053 internal override bool StartDoc (GraphicsPrinter gr, string doc_name, string output_file)
1055 return PrintingServicesUnix.StartDoc (gr, doc_name, output_file);
1058 internal override bool EndDoc (GraphicsPrinter gr)
1060 return PrintingServicesUnix.EndDoc (gr);
1063 internal override bool StartPage (GraphicsPrinter gr)
1065 return PrintingServicesUnix.StartPage (gr);
1068 internal override bool EndPage (GraphicsPrinter gr)
1070 return PrintingServicesUnix.EndPage (gr);