gtkprintoperation-unix.c 28.1 KB
Newer Older
1
/* GTK - The GIMP Toolkit
2 3
 * gtkprintoperation-unix.c: Print Operation Details for Unix 
 *                           and Unix-like platforms
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
 * Copyright (C) 2006, Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include "config.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
29 30 31
#include <errno.h>
#include <stdlib.h>       
#include <fcntl.h>
32 33 34 35 36

#include "gtkprintoperation-private.h"
#include "gtkmarshal.h"
#include "gtkmessagedialog.h"

37 38
#include <cairo-pdf.h>
#include <cairo-ps.h>
39
#include "gtkprivate.h"
40 41 42 43
#include "gtkprintunixdialog.h"
#include "gtkpagesetupunixdialog.h"
#include "gtkprintbackend.h"
#include "gtkprinter.h"
44
#include "gtkprinter-private.h"
45
#include "gtkprintjob.h"
46
#include "gtklabel.h"
47
#include "gtkalias.h"
48
#include "gtkintl.h"
49

Matthias Clasen's avatar
Matthias Clasen committed
50 51
typedef struct 
{
Matthias Clasen's avatar
Matthias Clasen committed
52
  GtkWindow *parent;        /* just in case we need to throw error dialogs */
Alexander Larsson's avatar
Alexander Larsson committed
53 54
  GMainLoop *loop;
  gboolean data_sent;
55

56
  /* Real printing (not preview) */
57 58 59 60 61
  GtkPrintJob *job;         /* the job we are sending to the printer */
  cairo_surface_t *surface;
  gulong job_status_changed_tag;

  
62 63
} GtkPrintOperationUnix;

Alexander Larsson's avatar
Alexander Larsson committed
64 65 66
typedef struct _PrinterFinder PrinterFinder;

static void printer_finder_free (PrinterFinder *finder);
Matthias Clasen's avatar
Matthias Clasen committed
67
static void find_printer        (const gchar   *printer,
Alexander Larsson's avatar
Alexander Larsson committed
68 69 70
				 GFunc          func,
				 gpointer       data);

71 72
static void
unix_start_page (GtkPrintOperation *op,
Matthias Clasen's avatar
Matthias Clasen committed
73 74
		 GtkPrintContext   *print_context,
		 GtkPageSetup      *page_setup)
75
{
76
  GtkPrintOperationUnix *op_unix;  
77 78
  GtkPaperSize *paper_size;
  cairo_surface_type_t type;
Matthias Clasen's avatar
Matthias Clasen committed
79
  gdouble w, h;
80

81 82
  op_unix = op->priv->platform_data;
  
83 84 85 86 87
  paper_size = gtk_page_setup_get_paper_size (page_setup);

  w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
  h = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
  
88
  type = cairo_surface_get_type (op_unix->surface);
89 90

  if (type == CAIRO_SURFACE_TYPE_PS)
91
    cairo_ps_surface_set_size (op_unix->surface, w, h);
92
  else if (type == CAIRO_SURFACE_TYPE_PDF)
93
    cairo_pdf_surface_set_size (op_unix->surface, w, h);
94 95 96 97
}

static void
unix_end_page (GtkPrintOperation *op,
Matthias Clasen's avatar
Matthias Clasen committed
98
	       GtkPrintContext   *print_context)
99 100 101
{
  cairo_t *cr;

102
  cr = gtk_print_context_get_cairo_context (print_context);
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118
  cairo_show_page (cr);
}

static void
op_unix_free (GtkPrintOperationUnix *op_unix)
{
  if (op_unix->job)
    {
      g_signal_handler_disconnect (op_unix->job,
				   op_unix->job_status_changed_tag);
      g_object_unref (op_unix->job);
    }

  g_free (op_unix);
}

Matthias Clasen's avatar
Matthias Clasen committed
119
static gchar *
120 121 122
shell_command_substitute_file (const gchar *cmd,
			       const gchar *filename)
{
Matthias Clasen's avatar
Matthias Clasen committed
123 124
  const gchar *inptr, *start;
  gchar *result;
125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167
  GString *final;

  g_return_val_if_fail (cmd != NULL, NULL);
  g_return_val_if_fail (filename != NULL, NULL);

  result = NULL;
  final = g_string_new (NULL);

  start = inptr = cmd;

  while ((inptr = strchr (inptr, '%')) != NULL) 
    {
      g_string_append_len (final, start, inptr - start);
      inptr++;
      switch (*inptr) 
        {
          case 'f':
            g_string_append (final, filename ? filename : "");
            break;

          case '%':
            g_string_append_c (final, '%');
            break;

          default:
            g_string_append_c (final, '%');
            if (*inptr)
              g_string_append_c (final, *inptr);
            break;
        }
      if (*inptr)
        inptr++;
      start = inptr;
    }
  g_string_append (final, start);

  result = final->str;

  g_string_free (final, FALSE);

  return result;
}

168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
static void
gtk_print_operation_unix_initialize (void)
{
  static gboolean initialized = FALSE;

  if (!initialized)
    {
      /**
       * GtkSettings::gtk-print-preview-command:
       *
       * A command to run for displaying the print preview. The command
       * should contain a %f placeholder, which will get replaced by
       * the path to the pdf file.
       *
       * The preview application is responsible for removing the pdf file
       * when it is done.
       *
       * Since: 2.10
       */
      gtk_settings_install_property (g_param_spec_string ("gtk-print-preview-command",
							  P_("Default command to run when displaying a print preview"),
							  P_("Command to run when displaying a print preview"),
							  GTK_PRINT_PREVIEW_COMMAND,
							  GTK_PARAM_READWRITE)); 
      initialized = TRUE;
    }
}

196 197
void
_gtk_print_operation_platform_backend_launch_preview (GtkPrintOperation *op,
198
						      cairo_surface_t   *surface,
Matthias Clasen's avatar
Matthias Clasen committed
199 200
						      GtkWindow         *parent,
						      const gchar       *filename)
201
{
Matthias Clasen's avatar
Matthias Clasen committed
202
  gint argc;
203 204 205 206 207 208 209
  gchar **argv;
  gchar *cmd;
  gchar *preview_cmd;
  GtkSettings *settings;
  gchar *quoted_filename;
  GdkScreen *screen;
  GError *error = NULL;
210

211 212
  gtk_print_operation_unix_initialize ();

213
  cairo_surface_destroy (surface);
214 215 216 217 218 219 220 221
 
  settings = gtk_settings_get_default ();
  g_object_get (settings, "gtk-print-preview-command", &preview_cmd, NULL);

  quoted_filename = g_shell_quote (filename);
  cmd = shell_command_substitute_file (preview_cmd, quoted_filename);
  g_shell_parse_argv (cmd, &argc, &argv, &error);

Matthias Clasen's avatar
Matthias Clasen committed
222
  if (error != NULL)
223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257
    goto out;

  if (parent)
    screen = gtk_window_get_screen (parent);
  else
    screen = gdk_screen_get_default ();
  
  gdk_spawn_on_screen (screen, NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, &error);

 out:
  if (error != NULL)
    {
      GtkWidget *edialog;
      edialog = gtk_message_dialog_new (parent, 
                                        GTK_DIALOG_DESTROY_WITH_PARENT,
                                        GTK_MESSAGE_ERROR,
                                        GTK_BUTTONS_CLOSE,
                                        _("Error launching preview") /* FIXME better text */);
      gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (edialog),
                                                "%s", error->message);
      gtk_window_set_modal (GTK_WINDOW (edialog), TRUE);
      g_signal_connect (edialog, "response",
                        G_CALLBACK (gtk_widget_destroy), NULL);

      gtk_window_present (GTK_WINDOW (edialog));

      g_error_free (error); 
   } 

  g_free (cmd);
  g_free (quoted_filename);
  g_free (preview_cmd);
  g_strfreev (argv);
}

258 259
static void
unix_finish_send  (GtkPrintJob *job,
Matthias Clasen's avatar
Matthias Clasen committed
260
                   gpointer     user_data, 
Matthias Clasen's avatar
Matthias Clasen committed
261
                   GError      *error)
262 263 264 265 266 267 268 269
{
  GtkPrintOperationUnix *op_unix;

  op_unix = (GtkPrintOperationUnix *) user_data;

  if (error != NULL)
    {
      GtkWidget *edialog;
270
      edialog = gtk_message_dialog_new (op_unix->parent, 
271 272 273
                                        GTK_DIALOG_DESTROY_WITH_PARENT,
                                        GTK_MESSAGE_ERROR,
                                        GTK_BUTTONS_CLOSE,
274 275 276 277 278 279 280 281
                                        _("Error printing") /* FIXME better text */);
      gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (edialog),
                                                "%s", error->message);
      gtk_window_set_modal (GTK_WINDOW (edialog), TRUE);
      g_signal_connect (edialog, "response",
                        G_CALLBACK (gtk_widget_destroy), NULL);

      gtk_window_present (GTK_WINDOW (edialog));
282
    }
Alexander Larsson's avatar
Alexander Larsson committed
283 284

  op_unix->data_sent = TRUE;
285

Alexander Larsson's avatar
Alexander Larsson committed
286 287
  if (op_unix->loop)
    g_main_loop_quit (op_unix->loop);
288 289 290
}

static void
Alexander Larsson's avatar
Alexander Larsson committed
291
unix_end_run (GtkPrintOperation *op,
292 293
	      gboolean           wait,
	      gboolean           cancelled)
294 295
{
  GtkPrintOperationUnix *op_unix = op->priv->platform_data;
Alexander Larsson's avatar
Alexander Larsson committed
296

297 298
  cairo_surface_finish (op_unix->surface);
  
299 300 301
  if (cancelled)
    return;

Alexander Larsson's avatar
Alexander Larsson committed
302 303 304
  if (wait)
    op_unix->loop = g_main_loop_new (NULL, FALSE);
  
305
  /* TODO: Check for error */
306 307 308 309 310
  if (op_unix->job != NULL)
    gtk_print_job_send (op_unix->job,
                        unix_finish_send, 
                        op_unix, NULL,
		        NULL);
Alexander Larsson's avatar
Alexander Larsson committed
311 312 313 314 315 316 317 318 319 320 321

  if (wait)
    {
      if (!op_unix->data_sent)
	{
	  GDK_THREADS_LEAVE ();  
	  g_main_loop_run (op_unix->loop);
	  GDK_THREADS_ENTER ();  
	}
      g_main_loop_unref (op_unix->loop);
    }
322 323 324
}

static void
Matthias Clasen's avatar
Matthias Clasen committed
325 326
job_status_changed_cb (GtkPrintJob       *job, 
		       GtkPrintOperation *op)
327 328 329 330
{
  _gtk_print_operation_set_status (op, gtk_print_job_get_status (job), NULL);
}

331 332 333 334

static GtkWidget *
get_print_dialog (GtkPrintOperation *op,
                  GtkWindow         *parent)
335
{
336
  GtkPrintOperationPrivate *priv = op->priv;
337
  GtkWidget *pd, *label;
338
  GtkPageSetup *page_setup;
Matthias Clasen's avatar
Matthias Clasen committed
339
  const gchar *custom_tab_label;
340 341 342

  pd = gtk_print_unix_dialog_new (NULL, parent);

343 344 345 346 347
  gtk_print_unix_dialog_set_manual_capabilities (GTK_PRINT_UNIX_DIALOG (pd),
						 GTK_PRINT_CAPABILITY_PAGE_SET |
						 GTK_PRINT_CAPABILITY_COPIES |
						 GTK_PRINT_CAPABILITY_COLLATE |
						 GTK_PRINT_CAPABILITY_REVERSE |
348
						 GTK_PRINT_CAPABILITY_SCALE |
Matthias Clasen's avatar
Matthias Clasen committed
349 350
                                                 GTK_PRINT_CAPABILITY_GENERATE_PDF |
						 GTK_PRINT_CAPABILITY_GENERATE_PS);
351

352
  if (priv->print_settings)
353
    gtk_print_unix_dialog_set_settings (GTK_PRINT_UNIX_DIALOG (pd),
354 355 356
					priv->print_settings);
  if (priv->default_page_setup)
    page_setup = gtk_page_setup_copy (priv->default_page_setup);
357 358 359 360 361 362
  else
    page_setup = gtk_page_setup_new ();

  gtk_print_unix_dialog_set_page_setup (GTK_PRINT_UNIX_DIALOG (pd), 
                                        page_setup);
  g_object_unref (page_setup);
363

364
  g_signal_emit_by_name (op, "create-custom-widget",
Matthias Clasen's avatar
Matthias Clasen committed
365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380
			 &priv->custom_widget);

  if (priv->custom_widget) 
    {
      custom_tab_label = priv->custom_tab_label;
      
      if (custom_tab_label == NULL)
	{
	  custom_tab_label = g_get_application_name ();
	  if (custom_tab_label == NULL)
	    custom_tab_label = _("Application");
	}

      label = gtk_label_new (custom_tab_label);
      
      gtk_print_unix_dialog_add_custom_tab (GTK_PRINT_UNIX_DIALOG (pd),
Matthias Clasen's avatar
Matthias Clasen committed
381
					    priv->custom_widget, label);
Matthias Clasen's avatar
Matthias Clasen committed
382
    }
383
  
384 385
  return pd;
}
386
  
Matthias Clasen's avatar
Matthias Clasen committed
387 388
typedef struct 
{
389 390
  GtkPrintOperation           *op;
  gboolean                     do_print;
391
  gboolean                     do_preview;
392 393 394
  GtkPrintOperationResult      result;
  GtkPrintOperationPrintFunc   print_cb;
  GDestroyNotify               destroy;
Alexander Larsson's avatar
Alexander Larsson committed
395 396
  GtkWindow                   *parent;
  GMainLoop                   *loop;
397 398 399 400 401 402 403 404 405 406 407 408
} PrintResponseData;

static void
print_response_data_free (gpointer data)
{
  PrintResponseData *rdata = data;

  g_object_unref (rdata->op);
  g_free (rdata);
}

static void
Alexander Larsson's avatar
Alexander Larsson committed
409
finish_print (PrintResponseData *rdata,
Matthias Clasen's avatar
Matthias Clasen committed
410 411 412
	      GtkPrinter        *printer,
	      GtkPageSetup      *page_setup,
	      GtkPrintSettings  *settings)
413 414
{
  GtkPrintOperation *op = rdata->op;
415
  GtkPrintOperationPrivate *priv = op->priv;
Matthias Clasen's avatar
Matthias Clasen committed
416
  GtkPrintJob *job;
Alexander Larsson's avatar
Alexander Larsson committed
417 418
  
  if (rdata->do_print)
419 420
    {
      gtk_print_operation_set_print_settings (op, settings);
421 422
      priv->print_context = _gtk_print_context_new (op);
      _gtk_print_context_set_page_setup (priv->print_context, page_setup);
423

424
      if (!rdata->do_preview)
425
        {
426 427 428
	  GtkPrintOperationUnix *op_unix;
	  cairo_t *cr;
	  
429
	  op_unix = g_new0 (GtkPrintOperationUnix, 1);
430 431 432 433 434 435 436 437
	  priv->platform_data = op_unix;
	  priv->free_platform_data = (GDestroyNotify) op_unix_free;
	  op_unix->parent = rdata->parent;
	  
	  priv->start_page = unix_start_page;
	  priv->end_page = unix_end_page;
	  priv->end_run = unix_end_run;
	  
Matthias Clasen's avatar
Matthias Clasen committed
438 439 440
	  job = gtk_print_job_new (priv->job_name, printer, settings, page_setup);
          op_unix->job = job;
          gtk_print_job_set_track_print_status (job, priv->track_print_status);
441
	  
442
	  op_unix->surface = gtk_print_job_get_surface (job, &priv->error);
Matthias Clasen's avatar
Matthias Clasen committed
443 444
	  if (op_unix->surface == NULL) 
            {
445
	      rdata->result = GTK_PRINT_OPERATION_RESULT_ERROR;
Matthias Clasen's avatar
Matthias Clasen committed
446 447 448
	      rdata->do_print = FALSE;
	      goto out;
            }
449 450
	  
	  cr = cairo_create (op_unix->surface);
Matthias Clasen's avatar
Matthias Clasen committed
451
	  gtk_print_context_set_cairo_context (priv->print_context, cr, 72, 72);
452 453
	  cairo_destroy (cr);

Matthias Clasen's avatar
Matthias Clasen committed
454
          _gtk_print_operation_set_status (op, gtk_print_job_get_status (job), NULL);
455 456
	  
          op_unix->job_status_changed_tag =
Matthias Clasen's avatar
Matthias Clasen committed
457
	    g_signal_connect (job, "status-changed",
458 459
			      G_CALLBACK (job_status_changed_cb), op);
	  
Matthias Clasen's avatar
Matthias Clasen committed
460 461 462
          priv->print_pages = job->print_pages;
          priv->page_ranges = job->page_ranges;
          priv->num_page_ranges = job->num_page_ranges;
463
	  
Matthias Clasen's avatar
Matthias Clasen committed
464 465 466 467 468 469
          priv->manual_num_copies = job->num_copies;
          priv->manual_collation = job->collate;
          priv->manual_reverse = job->reverse;
          priv->manual_page_set = job->page_set;
          priv->manual_scale = job->scale;
          priv->manual_orientation = job->rotate_to_orientation;
470
        }
471
    } 
472
 out:
473
  if (rdata->print_cb)
474
    rdata->print_cb (op, rdata->parent, rdata->do_print, rdata->result); 
475 476 477 478 479

  if (rdata->destroy)
    rdata->destroy (rdata);
}

480
static void 
Alexander Larsson's avatar
Alexander Larsson committed
481 482 483 484 485 486 487 488 489 490 491 492 493
handle_print_response (GtkWidget *dialog,
		       gint       response,
		       gpointer   data)
{
  GtkPrintUnixDialog *pd = GTK_PRINT_UNIX_DIALOG (dialog);
  PrintResponseData *rdata = data;
  GtkPrintSettings *settings = NULL;
  GtkPageSetup *page_setup = NULL;
  GtkPrinter *printer = NULL;

  if (response == GTK_RESPONSE_OK)
    {
      printer = gtk_print_unix_dialog_get_selected_printer (GTK_PRINT_UNIX_DIALOG (pd));
494 495 496

      rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
      rdata->do_preview = FALSE;
497 498 499 500 501 502
      if (printer != NULL)
	rdata->do_print = TRUE;
    } 
  else if (response == GTK_RESPONSE_APPLY)
    {
      /* print preview */
503 504
      rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
      rdata->do_preview = TRUE;
Alexander Larsson's avatar
Alexander Larsson committed
505
      rdata->do_print = TRUE;
506 507

      rdata->op->priv->action = GTK_PRINT_OPERATION_ACTION_PREVIEW;
508
    }
Alexander Larsson's avatar
Alexander Larsson committed
509

510 511
  if (rdata->do_print)
    {
Alexander Larsson's avatar
Alexander Larsson committed
512 513
      settings = gtk_print_unix_dialog_get_settings (GTK_PRINT_UNIX_DIALOG (pd));
      page_setup = gtk_print_unix_dialog_get_page_setup (GTK_PRINT_UNIX_DIALOG (pd));
514
      
515
      g_signal_emit_by_name (rdata->op, "custom-widget-apply", rdata->op->priv->custom_widget);
516 517
    }
  
Alexander Larsson's avatar
Alexander Larsson committed
518 519 520 521
  finish_print (rdata, printer, page_setup, settings);

  if (settings)
    g_object_unref (settings);
522
    
Alexander Larsson's avatar
Alexander Larsson committed
523
  gtk_widget_destroy (GTK_WIDGET (pd));
524
 
Alexander Larsson's avatar
Alexander Larsson committed
525 526 527 528
}


static void
Matthias Clasen's avatar
Matthias Clasen committed
529
found_printer (GtkPrinter        *printer,
Alexander Larsson's avatar
Alexander Larsson committed
530 531 532 533 534 535 536 537 538 539
	       PrintResponseData *rdata)
{
  GtkPrintOperation *op = rdata->op;
  GtkPrintOperationPrivate *priv = op->priv;
  GtkPrintSettings *settings = NULL;
  GtkPageSetup *page_setup = NULL;
  
  if (rdata->loop)
    g_main_loop_quit (rdata->loop);

Matthias Clasen's avatar
Matthias Clasen committed
540 541
  if (printer != NULL) 
    {
542
      rdata->result = GTK_PRINT_OPERATION_RESULT_APPLY;
Alexander Larsson's avatar
Alexander Larsson committed
543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568

      rdata->do_print = TRUE;

      if (priv->print_settings)
	settings = gtk_print_settings_copy (priv->print_settings);
      else
	settings = gtk_print_settings_new ();

      gtk_print_settings_set_printer (settings,
				      gtk_printer_get_name (printer));
      
      if (priv->default_page_setup)
	page_setup = gtk_page_setup_copy (priv->default_page_setup);
      else
	page_setup = gtk_page_setup_new ();
  }
  
  finish_print (rdata, printer, page_setup, settings);

  if (settings)
    g_object_unref (settings);
  
  if (page_setup)
    g_object_unref (page_setup);
}

569 570
void
_gtk_print_operation_platform_backend_run_dialog_async (GtkPrintOperation          *op,
571
							gboolean                    show_dialog,
572 573 574 575 576
                                                        GtkWindow                  *parent,
							GtkPrintOperationPrintFunc  print_cb)
{
  GtkWidget *pd;
  PrintResponseData *rdata;
Matthias Clasen's avatar
Matthias Clasen committed
577
  const gchar *printer_name;
578 579 580 581 582 583

  rdata = g_new (PrintResponseData, 1);
  rdata->op = g_object_ref (op);
  rdata->do_print = FALSE;
  rdata->result = GTK_PRINT_OPERATION_RESULT_CANCEL;
  rdata->print_cb = print_cb;
Alexander Larsson's avatar
Alexander Larsson committed
584 585
  rdata->parent = parent;
  rdata->loop = NULL;
586
  rdata->destroy = print_response_data_free;
587
  
588
  if (show_dialog)
Alexander Larsson's avatar
Alexander Larsson committed
589 590 591
    {
      pd = get_print_dialog (op, parent);
      gtk_window_set_modal (GTK_WINDOW (pd), TRUE);
592

Alexander Larsson's avatar
Alexander Larsson committed
593 594 595 596 597 598 599 600 601 602 603
      g_signal_connect (pd, "response", 
			G_CALLBACK (handle_print_response), rdata);
      
      gtk_window_present (GTK_WINDOW (pd));
    }
  else
    {
      printer_name = NULL;
      if (op->priv->print_settings)
	printer_name = gtk_print_settings_get_printer (op->priv->print_settings);
      
Matthias Clasen's avatar
Matthias Clasen committed
604
      find_printer (printer_name, (GFunc) found_printer, rdata);
Alexander Larsson's avatar
Alexander Larsson committed
605
    }
606 607
}

Matthias Clasen's avatar
Matthias Clasen committed
608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642
static cairo_status_t
write_preview (void                *closure,
               const unsigned char *data,
               unsigned int         length)
{
  gint fd = GPOINTER_TO_INT (closure);
  gssize written;
  
  while (length > 0) 
    {
      written = write (fd, data, length);

      if (written == -1)
	{
	  if (errno == EAGAIN || errno == EINTR)
	    continue;
	  
	  return CAIRO_STATUS_WRITE_ERROR;
	}    

      data += written;
      length -= written;
    }

  return CAIRO_STATUS_SUCCESS;
}

static void
close_preview (void *data)
{
  gint fd = GPOINTER_TO_INT (data);

  close (fd);
}

643 644
cairo_surface_t *
_gtk_print_operation_platform_backend_create_preview_surface (GtkPrintOperation *op,
Matthias Clasen's avatar
Matthias Clasen committed
645 646 647
							      GtkPageSetup      *page_setup,
							      gdouble           *dpi_x,
							      gdouble           *dpi_y,
648
							      gchar            **target)
649
{
Matthias Clasen's avatar
Matthias Clasen committed
650 651
  gchar *filename;
  gint fd;
652
  GtkPaperSize *paper_size;
Matthias Clasen's avatar
Matthias Clasen committed
653
  gdouble w, h;
Matthias Clasen's avatar
Matthias Clasen committed
654 655
  cairo_surface_t *surface;
  static cairo_user_data_key_t key;
656
  
Matthias Clasen's avatar
Matthias Clasen committed
657 658 659
  filename = g_build_filename (g_get_tmp_dir (), "previewXXXXXX.pdf", NULL);
  fd = g_mkstemp (filename);
  *target = filename;
660
  
Matthias Clasen's avatar
Matthias Clasen committed
661 662
  g_print ("target is %s\n", filename);

663 664 665 666 667
  paper_size = gtk_page_setup_get_paper_size (page_setup);
  w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
  h = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
    
  *dpi_x = *dpi_y = 72;
Matthias Clasen's avatar
Matthias Clasen committed
668 669 670 671 672
  surface = cairo_pdf_surface_create_for_stream (write_preview, GINT_TO_POINTER(fd), w, h);
 
  cairo_surface_set_user_data (surface, &key, GINT_TO_POINTER (fd), close_preview);

  return surface;
673 674 675 676
}

void
_gtk_print_operation_platform_backend_preview_start_page (GtkPrintOperation *op,
677 678
							  cairo_surface_t   *surface,
							  cairo_t           *cr)
679 680 681 682 683
{
}

void
_gtk_print_operation_platform_backend_preview_end_page (GtkPrintOperation *op,
684 685
							cairo_surface_t   *surface,
							cairo_t           *cr)
686 687
{
  cairo_show_page (cr);
688 689 690 691
}

void
_gtk_print_operation_platform_backend_resize_preview_surface (GtkPrintOperation *op,
Matthias Clasen's avatar
Matthias Clasen committed
692 693
							      GtkPageSetup      *page_setup,
							      cairo_surface_t   *surface)
694 695
{
  GtkPaperSize *paper_size;
Matthias Clasen's avatar
Matthias Clasen committed
696
  gdouble w, h;
697 698 699 700 701 702 703 704
  
  paper_size = gtk_page_setup_get_paper_size (page_setup);
  w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
  h = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
  cairo_pdf_surface_set_size (surface, w, h);
}


705 706
GtkPrintOperationResult
_gtk_print_operation_platform_backend_run_dialog (GtkPrintOperation *op,
707
						  gboolean           show_dialog,
708
						  GtkWindow         *parent,
709
						  gboolean          *do_print)
710 711 712 713
 {
  GtkWidget *pd;
  PrintResponseData rdata;
  gint response;  
Matthias Clasen's avatar
Matthias Clasen committed
714
  const gchar *printer_name;
715 716 717 718 719 720
   
  rdata.op = op;
  rdata.do_print = FALSE;
  rdata.result = GTK_PRINT_OPERATION_RESULT_CANCEL;
  rdata.print_cb = NULL;
  rdata.destroy = NULL;
Alexander Larsson's avatar
Alexander Larsson committed
721 722
  rdata.parent = parent;
  rdata.loop = NULL;
723

724
  if (show_dialog)
Alexander Larsson's avatar
Alexander Larsson committed
725 726
    {
      pd = get_print_dialog (op, parent);
727

Alexander Larsson's avatar
Alexander Larsson committed
728 729 730 731 732 733 734 735 736 737 738 739
      response = gtk_dialog_run (GTK_DIALOG (pd));
      handle_print_response (pd, response, &rdata);
    }
  else
    {
      printer_name = NULL;
      if (op->priv->print_settings)
	printer_name = gtk_print_settings_get_printer (op->priv->print_settings);
      
      rdata.loop = g_main_loop_new (NULL, FALSE);
      find_printer (printer_name,
		    (GFunc) found_printer, &rdata);
740

Alexander Larsson's avatar
Alexander Larsson committed
741 742 743
      GDK_THREADS_LEAVE ();  
      g_main_loop_run (rdata.loop);
      GDK_THREADS_ENTER ();  
744

Alexander Larsson's avatar
Alexander Larsson committed
745
      g_main_loop_unref (rdata.loop);
746
      rdata.loop = NULL;
Alexander Larsson's avatar
Alexander Larsson committed
747
    }
748

Alexander Larsson's avatar
Alexander Larsson committed
749 750
  *do_print = rdata.do_print;
  
751 752 753 754
  return rdata.result;
}


Matthias Clasen's avatar
Matthias Clasen committed
755 756
typedef struct 
{
757 758 759 760
  GtkPageSetup         *page_setup;
  GtkPageSetupDoneFunc  done_cb;
  gpointer              data;
  GDestroyNotify        destroy;
761 762 763 764 765 766 767
} PageSetupResponseData;

static void
page_setup_data_free (gpointer data)
{
  PageSetupResponseData *rdata = data;

Matthias Clasen's avatar
Matthias Clasen committed
768 769 770
  if (rdata->page_setup)
    g_object_unref (rdata->page_setup);

771 772 773 774 775 776 777 778 779 780
  g_free (rdata);
}

static void
handle_page_setup_response (GtkWidget *dialog,
			    gint       response,
			    gpointer   data)
{
  GtkPageSetupUnixDialog *psd;
  PageSetupResponseData *rdata = data;
781

782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809
  psd = GTK_PAGE_SETUP_UNIX_DIALOG (dialog);
  if (response == GTK_RESPONSE_OK)
    rdata->page_setup = gtk_page_setup_unix_dialog_get_page_setup (psd);

  gtk_widget_destroy (dialog);

  if (rdata->done_cb)
    rdata->done_cb (rdata->page_setup, rdata->data);

  if (rdata->destroy)
    rdata->destroy (rdata);
}

static GtkWidget *
get_page_setup_dialog (GtkWindow        *parent,
		       GtkPageSetup     *page_setup,
		       GtkPrintSettings *settings)
{
  GtkWidget *dialog;

  dialog = gtk_page_setup_unix_dialog_new (NULL, parent);
  if (page_setup)
    gtk_page_setup_unix_dialog_set_page_setup (GTK_PAGE_SETUP_UNIX_DIALOG (dialog),
					       page_setup);
  gtk_page_setup_unix_dialog_set_print_settings (GTK_PAGE_SETUP_UNIX_DIALOG (dialog),
						 settings);

  return dialog;
810 811
}

812 813 814 815 816 817
/**
 * gtk_print_run_page_setup_dialog:
 * @parent: transient parent, or %NULL
 * @page_setup: an existing #GtkPageSetup, or %NULL
 * @settings: a #GtkPrintSettings
 * 
818 819 820 821 822 823 824 825
 * Runs a page setup dialog, letting the user modify the values from 
 * @page_setup. If the user cancels the dialog, the returned #GtkPageSetup 
 * is identical to the passed in @page_setup, otherwise it contains the 
 * modifications done in the dialog.
 *
 * Note that this function may use a recursive mainloop to show the page
 * setup dialog. See gtk_print_run_page_setup_dialog_async() if this is 
 * a problem.
826 827 828 829 830
 * 
 * Return value: a new #GtkPageSetup
 *
 * Since: 2.10
 */
831 832 833 834 835 836
GtkPageSetup *
gtk_print_run_page_setup_dialog (GtkWindow        *parent,
				 GtkPageSetup     *page_setup,
				 GtkPrintSettings *settings)
{
  GtkWidget *dialog;
837 838
  gint response;
  PageSetupResponseData rdata;  
839
  
840 841 842 843 844 845 846 847 848 849 850 851 852 853 854
  rdata.page_setup = NULL;
  rdata.done_cb = NULL;
  rdata.data = NULL;
  rdata.destroy = NULL;

  dialog = get_page_setup_dialog (parent, page_setup, settings);
  response = gtk_dialog_run (GTK_DIALOG (dialog));
  handle_page_setup_response (dialog, response, &rdata);
 
  if (rdata.page_setup)
    return rdata.page_setup;
  else if (page_setup)
    return gtk_page_setup_copy (page_setup);
  else
    return gtk_page_setup_new ();
855 856
}

857 858 859 860 861 862 863 864
/**
 * gtk_print_run_page_setup_dialog_async:
 * @parent: transient parent, or %NULL
 * @page_setup: an existing #GtkPageSetup, or %NULL
 * @settings: a #GtkPrintSettings
 * @done_cb: a function to call when the user saves the modified page setup
 * @data: user data to pass to @done_cb
 * 
Matthias Clasen's avatar
Matthias Clasen committed
865
 * Runs a page setup dialog, letting the user modify the values from @page_setup. 
866
 *
Matthias Clasen's avatar
Matthias Clasen committed
867 868 869
 * In contrast to gtk_print_run_page_setup_dialog(), this function  returns after 
 * showing the page setup dialog on platforms that support this, and calls @done_cb 
 * from a signal handler for the ::response signal of the dialog.
870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897
 *
 * Since: 2.10
 */
void
gtk_print_run_page_setup_dialog_async (GtkWindow            *parent,
				       GtkPageSetup         *page_setup,
				       GtkPrintSettings     *settings,
				       GtkPageSetupDoneFunc  done_cb,
				       gpointer              data)
{
  GtkWidget *dialog;
  PageSetupResponseData *rdata;
  
  dialog = get_page_setup_dialog (parent, page_setup, settings);
  gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
  
  rdata = g_new (PageSetupResponseData, 1);
  rdata->page_setup = NULL;
  rdata->done_cb = done_cb;
  rdata->data = data;
  rdata->destroy = page_setup_data_free;

  g_signal_connect (dialog, "response",
		    G_CALLBACK (handle_page_setup_response), rdata);
 
  gtk_window_present (GTK_WINDOW (dialog));
 }

Matthias Clasen's avatar
Matthias Clasen committed
898 899
struct _PrinterFinder 
{
Alexander Larsson's avatar
Alexander Larsson committed
900 901 902
  gboolean found_printer;
  GFunc func;
  gpointer data;
Matthias Clasen's avatar
Matthias Clasen committed
903
  gchar *printer_name;
Alexander Larsson's avatar
Alexander Larsson committed
904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937
  GList *backends;
  guint timeout_tag;
  GtkPrinter *printer;
  GtkPrinter *default_printer;
  GtkPrinter *first_printer;
};

static gboolean
find_printer_idle (gpointer data)
{
  PrinterFinder *finder = data;
  GtkPrinter *printer;

  if (finder->printer != NULL)
    printer = finder->printer;
  else if (finder->default_printer != NULL)
    printer = finder->default_printer;
  else if (finder->first_printer != NULL)
    printer = finder->first_printer;
  else
    printer = NULL;

  finder->func (printer, finder->data);
  
  printer_finder_free (finder);

  return FALSE;
}

static void
printer_added_cb (GtkPrintBackend *backend, 
                  GtkPrinter      *printer, 
		  PrinterFinder   *finder)
{
938 939 940 941 942
  if (finder->found_printer)
    return;

  /* FIXME this skips "Print to PDF" - is this intentional ? */
  if (gtk_printer_is_virtual (printer))
Alexander Larsson's avatar
Alexander Larsson committed
943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982
    return;

  if (finder->printer_name != NULL &&
      strcmp (gtk_printer_get_name (printer), finder->printer_name) == 0)
    {
      finder->printer = g_object_ref (printer);
      finder->found_printer = TRUE;
    }
  else if (finder->default_printer == NULL &&
	   gtk_printer_is_default (printer))
    {
      finder->default_printer = g_object_ref (printer);
      if (finder->printer_name == NULL)
	finder->found_printer = TRUE;
    }
  else
    if (finder->first_printer == NULL)
      finder->first_printer = g_object_ref (printer);
  
  if (finder->found_printer)
    g_idle_add (find_printer_idle, finder);
}

static void
printer_list_done_cb (GtkPrintBackend *backend, 
		      PrinterFinder   *finder)
{
  finder->backends = g_list_remove (finder->backends, backend);
  
  g_signal_handlers_disconnect_by_func (backend, printer_added_cb, finder);
  g_signal_handlers_disconnect_by_func (backend, printer_list_done_cb, finder);
  
  gtk_print_backend_destroy (backend);
  g_object_unref (backend);

  if (finder->backends == NULL && !finder->found_printer)
    g_idle_add (find_printer_idle, finder);
}

static void
Matthias Clasen's avatar
Matthias Clasen committed
983
find_printer_init (PrinterFinder   *finder,
Alexander Larsson's avatar
Alexander Larsson committed
984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
		   GtkPrintBackend *backend)
{
  GList *list;
  GList *node;

  list = gtk_print_backend_get_printer_list (backend);

  node = list;
  while (node != NULL)
    {
      printer_added_cb (backend, node->data, finder);
      node = node->next;

      if (finder->found_printer)
	break;
    }

  g_list_free (list);

  if (gtk_print_backend_printer_list_is_done (backend))
    {
      finder->backends = g_list_remove (finder->backends, backend);
      gtk_print_backend_destroy (backend);
      g_object_unref (backend);
    }
  else
    {
Matthias Clasen's avatar
Matthias Clasen committed
1011
      g_signal_connect (backend, "printer-added", 
Alexander Larsson's avatar
Alexander Larsson committed
1012 1013
			(GCallback) printer_added_cb, 
			finder);
Matthias Clasen's avatar
Matthias Clasen committed
1014
      g_signal_connect (backend, "printer-list-done", 
Alexander Larsson's avatar
Alexander Larsson committed
1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051
			(GCallback) printer_list_done_cb, 
			finder);
    }

}

static void
printer_finder_free (PrinterFinder *finder)
{
  GList *l;
  
  g_free (finder->printer_name);
  
  if (finder->printer)
    g_object_unref (finder->printer);
  
  if (finder->default_printer)
    g_object_unref (finder->default_printer);
  
  if (finder->first_printer)
    g_object_unref (finder->first_printer);

  for (l = finder->backends; l != NULL; l = l->next)
    {
      GtkPrintBackend *backend = l->data;
      g_signal_handlers_disconnect_by_func (backend, printer_added_cb, finder);
      g_signal_handlers_disconnect_by_func (backend, printer_list_done_cb, finder);
      gtk_print_backend_destroy (backend);
      g_object_unref (backend);
    }
  
  g_list_free (finder->backends);
  
  g_free (finder);
}

static void 
Matthias Clasen's avatar
Matthias Clasen committed
1052 1053 1054
find_printer (const gchar *printer,
	      GFunc        func,
	      gpointer     data)
Alexander Larsson's avatar
Alexander Larsson committed
1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077
{
  GList *node, *next;
  PrinterFinder *finder;

  finder = g_new0 (PrinterFinder, 1);

  finder->printer_name = g_strdup (printer);
  finder->func = func;
  finder->data = data;
  
  finder->backends = NULL;
  if (g_module_supported ())
    finder->backends = gtk_print_backend_load_modules ();

  for (node = finder->backends; !finder->found_printer && node != NULL; node = next)
    {
      next = node->next;
      find_printer_init (finder, GTK_PRINT_BACKEND (node->data));
    }

  if (finder->backends == NULL && !finder->found_printer)
    g_idle_add (find_printer_idle, finder);
}
1078 1079 1080

#define __GTK_PRINT_OPERATION_UNIX_C__
#include "gtkaliasdef.c"