libview/ev-print-operation.c

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2008 Carlos Garcia Campos <carlosgc@gnome.org>
   4  *
   5  * Evince is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * Evince is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <config.h>
  21
  22 #include "ev-print-operation.h"
  23
  24 #if GTKUNIXPRINT_ENABLED
  25 #include <gtk/gtkunixprint.h>
  26 #endif
  27 #include <glib/gi18n.h>
  28 #include <glib/gstdio.h>
  29 #include <unistd.h>
  30
  31 #include "ev-jobs.h"
  32 #include "ev-job-scheduler.h"
  33
  34 enum {
  35         PROP_0,
  36         PROP_DOCUMENT
  37 };
  38
  39 enum {
  40         DONE,
  41         BEGIN_PRINT,
  42         STATUS_CHANGED,
  43         LAST_SIGNAL
  44 };
  45
  46 static guint signals[LAST_SIGNAL] = { 0 };
  47
  48 struct _EvPrintOperation {
  49         GObject parent;
  50
  51         EvDocument *document;
  52
  53         /* Progress */
  54         gchar      *status;
  55         gdouble     progress;
  56 };
  57
  58 struct _EvPrintOperationClass {
  59         GObjectClass parent_class;
  60
  61         void              (* set_current_page)       (EvPrintOperation       *op,
  62                                                       gint                    current_page);
  63         void              (* set_print_settings)     (EvPrintOperation       *op,
  64                                                       GtkPrintSettings       *print_settings);
  65         GtkPrintSettings *(* get_print_settings)     (EvPrintOperation       *op);
  66         void              (* set_default_page_setup) (EvPrintOperation       *op,
  67                                                       GtkPageSetup           *page_setup);
  68         GtkPageSetup     *(* get_default_page_setup) (EvPrintOperation       *op);
  69         void              (* set_job_name)           (EvPrintOperation       *op,
  70                                                       const gchar            *job_name);
  71         const gchar      *(* get_job_name)           (EvPrintOperation       *op);
  72         void              (* run)                    (EvPrintOperation       *op,
  73                                                       GtkWindow              *parent);
  74         void              (* cancel)                 (EvPrintOperation       *op);
  75         void              (* get_error)              (EvPrintOperation       *op,
  76                                                       GError                **error);
  77         void              (* set_embed_page_setup)   (EvPrintOperation       *op,
  78                                                       gboolean                embed);
  79         gboolean          (* get_embed_page_setup)   (EvPrintOperation       *op);
  80
  81         /* signals */
  82         void              (* done)                   (EvPrintOperation       *op,
  83                                                       GtkPrintOperationResult result);
  84         void              (* begin_print)            (EvPrintOperation       *op);
  85         void              (* status_changed)         (EvPrintOperation       *op);
  86 };
  87
  88 G_DEFINE_ABSTRACT_TYPE (EvPrintOperation, ev_print_operation, G_TYPE_OBJECT)
  89
  90 static void
  91 ev_print_operation_finalize (GObject *object)
  92 {
  93         EvPrintOperation *op = EV_PRINT_OPERATION (object);
  94
  95         if (op->document) {
  96                 g_object_unref (op->document);
  97                 op->document = NULL;
  98         }
  99
 100         if (op->status) {
 101                 g_free (op->status);
 102                 op->status = NULL;
 103         }
 104
 105         (* G_OBJECT_CLASS (ev_print_operation_parent_class)->finalize) (object);
 106 }
 107
 108 static void
 109 ev_print_operation_set_property (GObject      *object,
 110                                  guint         prop_id,
 111                                  const GValue *value,
 112                                  GParamSpec   *pspec)
 113 {
 114         EvPrintOperation *op = EV_PRINT_OPERATION (object);
 115
 116         switch (prop_id) {
 117         case PROP_DOCUMENT:
 118                 op->document = g_value_dup_object (value);
 119                 break;
 120         default:
 121                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 122         }
 123 }
 124
 125 static void
 126 ev_print_operation_init (EvPrintOperation *op)
 127 {
 128 }
 129
 130 static void
 131 ev_print_operation_class_init (EvPrintOperationClass *klass)
 132 {
 133         GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
 134
 135         g_object_class->set_property = ev_print_operation_set_property;
 136         g_object_class->finalize = ev_print_operation_finalize;
 137
 138         g_object_class_install_property (g_object_class,
 139                                          PROP_DOCUMENT,
 140                                          g_param_spec_object ("document",
 141                                                               "Document",
 142                                                               "The document to print",
 143                                                               EV_TYPE_DOCUMENT,
 144                                                               G_PARAM_WRITABLE |
 145                                                               G_PARAM_CONSTRUCT_ONLY));
 146         signals[DONE] =
 147                 g_signal_new ("done",
 148                               G_TYPE_FROM_CLASS (g_object_class),
 149                               G_SIGNAL_RUN_LAST,
 150                               G_STRUCT_OFFSET (EvPrintOperationClass, done),
 151                               NULL, NULL,
 152                               g_cclosure_marshal_VOID__ENUM,
 153                               G_TYPE_NONE, 1,
 154                               GTK_TYPE_PRINT_OPERATION_RESULT);
 155         signals[BEGIN_PRINT] =
 156                 g_signal_new ("begin_print",
 157                               G_TYPE_FROM_CLASS (g_object_class),
 158                               G_SIGNAL_RUN_LAST,
 159                               G_STRUCT_OFFSET (EvPrintOperationClass, begin_print),
 160                               NULL, NULL,
 161                               g_cclosure_marshal_VOID__VOID,
 162                               G_TYPE_NONE, 0);
 163         signals[STATUS_CHANGED] =
 164                 g_signal_new ("status_changed",
 165                               G_TYPE_FROM_CLASS (g_object_class),
 166                               G_SIGNAL_RUN_LAST,
 167                               G_STRUCT_OFFSET (EvPrintOperationClass, status_changed),
 168                               NULL, NULL,
 169                               g_cclosure_marshal_VOID__VOID,
 170                               G_TYPE_NONE, 0);
 171 }
 172
 173 /* Public methods */
 174 void
 175 ev_print_operation_set_current_page (EvPrintOperation *op,
 176                                      gint              current_page)
 177 {
 178         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 179
 180         g_return_if_fail (EV_IS_PRINT_OPERATION (op));
 181         g_return_if_fail (current_page >= 0);
 182
 183         class->set_current_page (op, current_page);
 184 }
 185
 186 void
 187 ev_print_operation_set_print_settings (EvPrintOperation *op,
 188                                        GtkPrintSettings *print_settings)
 189 {
 190         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 191
 192         g_return_if_fail (EV_IS_PRINT_OPERATION (op));
 193         g_return_if_fail (GTK_IS_PRINT_SETTINGS (print_settings));
 194
 195         class->set_print_settings (op, print_settings);
 196 }
 197
 198 GtkPrintSettings *
 199 ev_print_operation_get_print_settings (EvPrintOperation *op)
 200 {
 201         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 202
 203         g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), NULL);
 204
 205         return class->get_print_settings (op);
 206 }
 207
 208 void
 209 ev_print_operation_set_default_page_setup (EvPrintOperation *op,
 210                                            GtkPageSetup     *page_setup)
 211 {
 212         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 213
 214         g_return_if_fail (EV_IS_PRINT_OPERATION (op));
 215         g_return_if_fail (GTK_IS_PAGE_SETUP (page_setup));
 216
 217         class->set_default_page_setup (op, page_setup);
 218 }
 219
 220 GtkPageSetup *
 221 ev_print_operation_get_default_page_setup (EvPrintOperation *op)
 222 {
 223         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 224
 225         g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), NULL);
 226
 227         return class->get_default_page_setup (op);
 228 }
 229
 230 void
 231 ev_print_operation_set_job_name (EvPrintOperation *op,
 232                                  const gchar      *job_name)
 233 {
 234         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 235
 236         g_return_if_fail (EV_IS_PRINT_OPERATION (op));
 237         g_return_if_fail (job_name != NULL);
 238
 239         class->set_job_name (op, job_name);
 240 }
 241
 242 const gchar *
 243 ev_print_operation_get_job_name (EvPrintOperation *op)
 244 {
 245         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 246
 247         g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), NULL);
 248
 249         return class->get_job_name (op);
 250 }
 251
 252 void
 253 ev_print_operation_run (EvPrintOperation *op,
 254                         GtkWindow        *parent)
 255 {
 256         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 257
 258         g_return_if_fail (EV_IS_PRINT_OPERATION (op));
 259
 260         class->run (op, parent);
 261 }
 262
 263 void
 264 ev_print_operation_cancel (EvPrintOperation *op)
 265 {
 266         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 267
 268         g_return_if_fail (EV_IS_PRINT_OPERATION (op));
 269
 270         class->cancel (op);
 271 }
 272
 273 void
 274 ev_print_operation_get_error (EvPrintOperation *op,
 275                               GError          **error)
 276 {
 277         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 278
 279         g_return_if_fail (EV_IS_PRINT_OPERATION (op));
 280
 281         class->get_error (op, error);
 282 }
 283
 284 void
 285 ev_print_operation_set_embed_page_setup (EvPrintOperation *op,
 286                                          gboolean          embed)
 287 {
 288 #if GTK_CHECK_VERSION (2, 17, 4)
 289         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 290
 291         g_return_if_fail (EV_IS_PRINT_OPERATION (op));
 292
 293         class->set_embed_page_setup (op, embed);
 294 #endif
 295 }
 296
 297 gboolean
 298 ev_print_operation_get_embed_page_setup (EvPrintOperation *op)
 299 {
 300 #if GTK_CHECK_VERSION (2, 17, 4)
 301         EvPrintOperationClass *class = EV_PRINT_OPERATION_GET_CLASS (op);
 302
 303         g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), FALSE);
 304
 305         return class->get_embed_page_setup (op);
 306 #else
 307         return FALSE;
 308 #endif
 309 }
 310
 311 const gchar *
 312 ev_print_operation_get_status (EvPrintOperation *op)
 313 {
 314         g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), NULL);
 315
 316         return op->status ? op->status : "";
 317 }
 318
 319 gdouble
 320 ev_print_operation_get_progress (EvPrintOperation *op)
 321 {
 322         g_return_val_if_fail (EV_IS_PRINT_OPERATION (op), 0.0);
 323
 324         return op->progress;
 325 }
 326
 327 #if GTK_CHECK_VERSION (2, 17, 1) | GTKUNIXPRINT_ENABLED
 328 static void
 329 ev_print_operation_update_status (EvPrintOperation *op,
 330                                   gint              page,
 331                                   gint              n_pages,
 332                                   gdouble           progress)
 333 {
 334         if (op->status && op->progress == progress)
 335                 return;
 336
 337         g_free (op->status);
 338
 339         if (page == -1) {
 340                 /* Initial state */
 341                 op->status = g_strdup (_("Preparing to print ..."));
 342         } else if (page > n_pages) {
 343                 op->status = g_strdup (_("Finishing..."));
 344         } else {
 345                 op->status = g_strdup_printf (_("Printing page %d of %d..."),
 346                                               page, n_pages);
 347         }
 348
 349         op->progress = MIN (1.0, progress);
 350
 351         g_signal_emit (op, signals[STATUS_CHANGED], 0);
 352 }
 353 #endif
 354
 355 #if GTKUNIXPRINT_ENABLED
 356
 357 /* Export interface */
 358 #define EV_TYPE_PRINT_OPERATION_EXPORT         (ev_print_operation_export_get_type())
 359 #define EV_PRINT_OPERATION_EXPORT(object)      (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_PRINT_OPERATION_EXPORT, EvPrintOperationExport))
 360 #define EV_PRINT_OPERATION_EXPORT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_PRINT_OPERATION_EXPORT, EvPrintOperationExportClass))
 361 #define EV_IS_PRINT_OPERATION_EXPORT(object)   (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_PRINT_OPERATION_EXPORT))
 362
 363 typedef struct _EvPrintOperationExport      EvPrintOperationExport;
 364 typedef struct _EvPrintOperationExportClass EvPrintOperationExportClass;
 365
 366 static GType    ev_print_operation_export_get_type (void) G_GNUC_CONST;
 367
 368 static void     ev_print_operation_export_begin    (EvPrintOperationExport *export);
 369 static gboolean export_print_page                  (EvPrintOperationExport *export);
 370 static void     export_cancel                      (EvPrintOperationExport *export);
 371
 372 struct _EvPrintOperationExport {
 373         EvPrintOperation parent;
 374
 375         GtkWindow *parent_window;
 376         EvJob *job_export;
 377         GError *error;
 378
 379         gboolean print_preview;
 380         gint n_pages;
 381         gint current_page;
 382         GtkPrinter *printer;
 383         GtkPageSetup *page_setup;
 384         GtkPrintSettings *print_settings;
 385         GtkPageSet page_set;
 386         gint copies;
 387         guint collate     : 1;
 388         guint reverse     : 1;
 389         gint pages_per_sheet;
 390         gint fd;
 391         gchar *temp_file;
 392         gchar *job_name;
 393         gboolean embed_page_setup;
 394
 395         guint idle_id;
 396
 397         /* Context */
 398         EvFileExporterContext fc;
 399         gint n_pages_to_print;
 400         gint uncollated_copies;
 401         gint collated_copies;
 402         gint uncollated, collated, total;
 403
 404         gint sheet, page_count;
 405
 406         gint range, n_ranges;
 407         GtkPageRange *ranges;
 408         GtkPageRange one_range;
 409
 410         gint page, start, end, inc;
 411 };
 412
 413 struct _EvPrintOperationExportClass {
 414         EvPrintOperationClass parent_class;
 415 };
 416
 417 G_DEFINE_TYPE (EvPrintOperationExport, ev_print_operation_export, EV_TYPE_PRINT_OPERATION)
 418
 419 /* Internal print queue */
 420 static GHashTable *print_queue = NULL;
 421
 422 static void
 423 queue_free (GQueue *queue)
 424 {
 425         g_queue_foreach (queue, (GFunc)g_object_unref, NULL);
 426         g_queue_free (queue);
 427 }
 428
 429 static void
 430 ev_print_queue_init (void)
 431 {
 432         if (G_UNLIKELY (print_queue == NULL)) {
 433                 print_queue = g_hash_table_new_full (g_direct_hash,
 434                                                      g_direct_equal,
 435                                                      NULL,
 436                                                      (GDestroyNotify)queue_free);
 437         }
 438 }
 439
 440 static void
 441 remove_document_queue (gpointer data,
 442                        GObject *document)
 443 {
 444         if (print_queue)
 445                 g_hash_table_remove (print_queue, document);
 446 }
 447
 448 static gboolean
 449 ev_print_queue_is_empty (EvDocument *document)
 450 {
 451         GQueue *queue;
 452
 453         queue = g_hash_table_lookup (print_queue, document);
 454         return (!queue || g_queue_is_empty (queue));
 455 }
 456
 457 static void
 458 ev_print_queue_push (EvPrintOperation *op)
 459 {
 460         GQueue *queue;
 461
 462         queue = g_hash_table_lookup (print_queue, op->document);
 463         if (!queue) {
 464                 queue = g_queue_new ();
 465                 g_hash_table_insert (print_queue,
 466                                      op->document,
 467                                      queue);
 468                 g_object_weak_ref (G_OBJECT (op->document),
 469                                    (GWeakNotify)remove_document_queue,
 470                                    NULL);
 471         }
 472
 473         g_queue_push_head (queue, g_object_ref (op));
 474 }
 475
 476 static EvPrintOperation *
 477 ev_print_queue_pop (EvDocument *document)
 478 {
 479         EvPrintOperation *op;
 480         GQueue           *queue;
 481
 482         queue = g_hash_table_lookup (print_queue, document);
 483         if (!queue || g_queue_is_empty (queue))
 484                 return NULL;
 485
 486         op = g_queue_pop_tail (queue);
 487         g_object_unref (op);
 488
 489         return op;
 490 }
 491
 492 static EvPrintOperation *
 493 ev_print_queue_peek (EvDocument *document)
 494 {
 495         GQueue *queue;
 496
 497         queue = g_hash_table_lookup (print_queue, document);
 498         if (!queue || g_queue_is_empty (queue))
 499                 return NULL;
 500
 501         return g_queue_peek_tail (queue);
 502 }
 503
 504 static void
 505 ev_print_operation_export_set_current_page (EvPrintOperation *op,
 506                                             gint              current_page)
 507 {
 508         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
 509
 510         g_return_if_fail (current_page < export->n_pages);
 511
 512         export->current_page = current_page;
 513 }
 514
 515 static void
 516 ev_print_operation_export_set_print_settings (EvPrintOperation *op,
 517                                               GtkPrintSettings *print_settings)
 518 {
 519         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
 520
 521         if (print_settings == export->print_settings)
 522                 return;
 523
 524         g_object_ref (print_settings);
 525         if (export->print_settings)
 526                 g_object_unref (export->print_settings);
 527         export->print_settings = print_settings;
 528 }
 529
 530 static GtkPrintSettings *
 531 ev_print_operation_export_get_print_settings (EvPrintOperation *op)
 532 {
 533         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
 534
 535         return export->print_settings;
 536 }
 537
 538 static void
 539 ev_print_operation_export_set_default_page_setup (EvPrintOperation *op,
 540                                                   GtkPageSetup     *page_setup)
 541 {
 542         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
 543
 544         if (page_setup == export->page_setup)
 545                 return;
 546
 547         g_object_ref (page_setup);
 548         if (export->page_setup)
 549                 g_object_unref (export->page_setup);
 550         export->page_setup = page_setup;
 551 }
 552
 553 static GtkPageSetup *
 554 ev_print_operation_export_get_default_page_setup (EvPrintOperation *op)
 555 {
 556         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
 557
 558         return export->page_setup;
 559 }
 560
 561 static void
 562 ev_print_operation_export_set_job_name (EvPrintOperation *op,
 563                                         const gchar      *job_name)
 564 {
 565         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
 566
 567         g_free (export->job_name);
 568         export->job_name = g_strdup (job_name);
 569 }
 570
 571 static const gchar *
 572 ev_print_operation_export_get_job_name (EvPrintOperation *op)
 573 {
 574         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
 575
 576         return export->job_name;
 577 }
 578
 579 static void
 580 ev_print_operation_export_set_printer (EvPrintOperationExport *export,
 581                                        GtkPrinter             *printer)
 582 {
 583         if (printer == export->printer)
 584                 return;
 585
 586         g_object_ref (printer);
 587         if (export->printer)
 588                 g_object_unref (export->printer);
 589         export->printer = printer;
 590 }
 591
 592 static void
 593 find_range (EvPrintOperationExport *export)
 594 {
 595         GtkPageRange *range;
 596
 597         range = &export->ranges[export->range];
 598
 599         if (export->inc < 0) {
 600                 export->start = range->end;
 601                 export->end = range->start - 1;
 602         } else {
 603                 export->start = range->start;
 604                 export->end = range->end + 1;
 605         }
 606 }
 607
 608 static gboolean
 609 clamp_ranges (EvPrintOperationExport *export)
 610 {
 611         gint num_of_correct_ranges = 0;
 612         gint n_pages_to_print = 0;
 613         gint i;
 614         gboolean null_flag = FALSE;
 615
 616         for (i = 0; i < export->n_ranges; i++) {
 617                 gint n_pages;
 618
 619                 if ((export->ranges[i].start >= 0) &&
 620                     (export->ranges[i].start < export->n_pages) &&
 621                     (export->ranges[i].end >= 0) &&
 622                     (export->ranges[i].end < export->n_pages)) {
 623                         export->ranges[num_of_correct_ranges] = export->ranges[i];
 624                         num_of_correct_ranges++;
 625                 } else if ((export->ranges[i].start >= 0) &&
 626                            (export->ranges[i].start < export->n_pages) &&
 627                            (export->ranges[i].end >= export->n_pages)) {
 628                         export->ranges[i].end = export->n_pages - 1;
 629                         export->ranges[num_of_correct_ranges] = export->ranges[i];
 630                         num_of_correct_ranges++;
 631                 } else if ((export->ranges[i].end >= 0) &&
 632                            (export->ranges[i].end < export->n_pages) &&
 633                            (export->ranges[i].start < 0)) {
 634                         export->ranges[i].start = 0;
 635                         export->ranges[num_of_correct_ranges] = export->ranges[i];
 636                         num_of_correct_ranges++;
 637                 }
 638
 639                 n_pages = export->ranges[i].end - export->ranges[i].start + 1;
 640                 if (export->page_set == GTK_PAGE_SET_ALL) {
 641                         n_pages_to_print += n_pages;
 642                 } else if (n_pages % 2 == 0) {
 643                         n_pages_to_print += n_pages / 2;
 644                 } else if (export->page_set == GTK_PAGE_SET_EVEN) {
 645                         if (n_pages==1 && export->ranges[i].start % 2 == 0)
 646                                 null_flag = TRUE;
 647                         else
 648                                 n_pages_to_print += export->ranges[i].start % 2 == 0 ?
 649                                 n_pages / 2 : (n_pages / 2) + 1;
 650                 } else if (export->page_set == GTK_PAGE_SET_ODD) {
 651                         if (n_pages==1 && export->ranges[i].start % 2 != 0)
 652                                 null_flag = TRUE;
 653                         else
 654                                 n_pages_to_print += export->ranges[i].start % 2 == 0 ?
 655                                 (n_pages / 2) + 1 : n_pages / 2;
 656                 }
 657         }
 658
 659         if (null_flag && !n_pages_to_print) {
 660                 return FALSE;
 661         } else {
 662                 export->n_ranges = num_of_correct_ranges;
 663                 export->n_pages_to_print = n_pages_to_print;
 664                 return TRUE;
 665         }
 666 }
 667
 668 static void
 669 get_first_and_last_page (EvPrintOperationExport *export,
 670                          gint                   *first,
 671                          gint                   *last)
 672 {
 673         gint i;
 674         gint first_page = G_MAXINT;
 675         gint last_page = G_MININT;
 676         gint max_page = export->n_pages - 1;
 677
 678         if (export->n_ranges == 0) {
 679                 *first = 0;
 680                 *last = max_page;
 681
 682                 return;
 683         }
 684
 685         for (i = 0; i < export->n_ranges; i++) {
 686                 if (export->ranges[i].start < first_page)
 687                         first_page = export->ranges[i].start;
 688                 if (export->ranges[i].end > last_page)
 689                         last_page = export->ranges[i].end;
 690         }
 691
 692         *first = MAX (0, first_page);
 693         *last = MIN (max_page, last_page);
 694 }
 695
 696 static gboolean
 697 export_print_inc_page (EvPrintOperationExport *export)
 698 {
 699         do {
 700                 export->page += export->inc;
 701
 702                 /* note: when NOT collating, page_count is increased in export_print_page */
 703                 if (export->collate) {
 704                         export->page_count++;
 705                         export->sheet = 1 + (export->page_count - 1) / export->pages_per_sheet;
 706                 }
 707
 708                 if (export->page == export->end) {
 709                         export->range += export->inc;
 710                         if (export->range == -1 || export->range == export->n_ranges) {
 711                                 export->uncollated++;
 712
 713                                 /* when printing multiple collated copies & multiple pages per sheet we want to
 714                                  * prevent the next copy bleeding into the last sheet of the previous one
 715                                  * we've reached the last range to be printed now, so this is the time to do it */
 716                                 if (export->pages_per_sheet > 1 && export->collate == 1 &&
 717                                     (export->page_count - 1) % export->pages_per_sheet != 0) {
 718
 719                                         EvPrintOperation *op = EV_PRINT_OPERATION (export);
 720                                         ev_document_doc_mutex_lock ();
 721
 722                                         /* keep track of all blanks but only actualise those
 723                                          * which are in the current odd / even sheet set */
 724
 725                                         export->page_count += export->pages_per_sheet - (export->page_count - 1) % export->pages_per_sheet;
 726                                         if (export->page_set == GTK_PAGE_SET_ALL ||
 727                                                 (export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 == 0) ||
 728                                                 (export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 == 1) ) {
 729                                                 ev_file_exporter_end_page (EV_FILE_EXPORTER (op->document));
 730                                         }
 731                                         ev_document_doc_mutex_unlock ();
 732                                         export->sheet = 1 + (export->page_count - 1) / export->pages_per_sheet;
 733                                 }
 734
 735                                 if (export->uncollated == export->uncollated_copies)
 736                                         return FALSE;
 737
 738                                 export->range = export->inc < 0 ? export->n_ranges - 1 : 0;
 739                         }
 740                         find_range (export);
 741                         export->page = export->start;
 742                 }
 743
 744         /* in/decrement the page number until we reach the first page on the next EVEN or ODD sheet
 745          * if we're not collating, we have to make sure that this is done only once! */
 746         } while ( export->collate == 1 &&
 747                 ((export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 == 1) ||
 748                 (export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 == 0)));
 749
 750         return TRUE;
 751 }
 752
 753 static void
 754 ev_print_operation_export_clear_temp_file (EvPrintOperationExport *export)
 755 {
 756         if (!export->temp_file)
 757                 return;
 758
 759         g_unlink (export->temp_file);
 760         g_free (export->temp_file);
 761         export->temp_file = NULL;
 762 }
 763
 764 static void
 765 ev_print_operation_export_run_next (EvPrintOperationExport *export)
 766 {
 767         EvPrintOperation *op = EV_PRINT_OPERATION (export);
 768         EvPrintOperation *next;
 769         EvDocument       *document;
 770
 771         /* First pop the current job */
 772         document = op->document;
 773         ev_print_queue_pop (document);
 774
 775         next = ev_print_queue_peek (document);
 776         if (next)
 777                 ev_print_operation_export_begin (EV_PRINT_OPERATION_EXPORT (next));
 778 }
 779
 780 static void
 781 gtk_print_job_finished (GtkPrintJob            *print_job,
 782                         EvPrintOperationExport *export,
 783                         GError                 *error)
 784 {
 785         EvPrintOperation *op = EV_PRINT_OPERATION (export);
 786
 787         if (error) {
 788                 g_set_error_literal (&export->error,
 789                                      GTK_PRINT_ERROR,
 790                                      GTK_PRINT_ERROR_GENERAL,
 791                                      error->message);
 792                 g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_ERROR);
 793         } else {
 794                 g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_APPLY);
 795         }
 796
 797         ev_print_operation_export_clear_temp_file (export);
 798         g_object_unref (print_job);
 799
 800         ev_print_operation_export_run_next (export);
 801 }
 802
 803 static void
 804 export_print_done (EvPrintOperationExport *export)
 805 {
 806         EvPrintOperation *op = EV_PRINT_OPERATION (export);
 807         GtkPrintSettings *settings;
 808         EvFileExporterCapabilities capabilities;
 809         GError *error = NULL;
 810
 811         g_assert (export->temp_file != NULL);
 812
 813         /* Some printers take into account some print settings,
 814          * and others don't. However we have exported the document
 815          * to a ps or pdf file according to such print settings. So,
 816          * we want to send the exported file to printer with those
 817          * settings set to default values.
 818          */
 819         settings = gtk_print_settings_copy (export->print_settings);
 820         capabilities = ev_file_exporter_get_capabilities (EV_FILE_EXPORTER (op->document));
 821
 822         gtk_print_settings_set_page_ranges (settings, NULL, 0);
 823         gtk_print_settings_set_print_pages (settings, GTK_PRINT_PAGES_ALL);
 824         if (capabilities & EV_FILE_EXPORTER_CAN_COPIES)
 825                 gtk_print_settings_set_n_copies (settings, 1);
 826         if (capabilities & EV_FILE_EXPORTER_CAN_PAGE_SET)
 827                 gtk_print_settings_set_page_set (settings, GTK_PAGE_SET_ALL);
 828         if (capabilities & EV_FILE_EXPORTER_CAN_SCALE)
 829                 gtk_print_settings_set_scale (settings, 1.0);
 830         if (capabilities & EV_FILE_EXPORTER_CAN_COLLATE)
 831                 gtk_print_settings_set_collate (settings, FALSE);
 832         if (capabilities & EV_FILE_EXPORTER_CAN_REVERSE)
 833                 gtk_print_settings_set_reverse (settings, FALSE);
 834         if (capabilities & EV_FILE_EXPORTER_CAN_NUMBER_UP) {
 835                 gtk_print_settings_set_number_up (settings, 1);
 836                 gtk_print_settings_set_int (settings, "cups-"GTK_PRINT_SETTINGS_NUMBER_UP, 1);
 837         }
 838
 839         if (export->print_preview) {
 840                 GKeyFile *key_file;
 841                 gchar    *data = NULL;
 842                 gsize     data_len;
 843                 gchar    *print_settings_file = NULL;
 844
 845                 key_file = g_key_file_new ();
 846
 847                 gtk_print_settings_to_key_file (settings, key_file, NULL);
 848                 gtk_page_setup_to_key_file (export->page_setup, key_file, NULL);
 849                 g_key_file_set_string (key_file, "Print Job", "title", export->job_name);
 850
 851                 data = g_key_file_to_data (key_file, &data_len, &error);
 852                 if (data) {
 853                         gint fd;
 854
 855                         fd = g_file_open_tmp ("print-settingsXXXXXX", &print_settings_file, &error);
 856                         if (!error)
 857                                 g_file_set_contents (print_settings_file, data, data_len, &error);
 858                         close (fd);
 859
 860                         g_free (data);
 861                 }
 862
 863                 g_key_file_free (key_file);
 864
 865                 if (!error) {
 866                         gint    argc;
 867                         gchar **argv;
 868                         gchar  *cmd;
 869                         gchar  *quoted_filename;
 870                         gchar  *quoted_settings_filename;
 871
 872                         quoted_filename = g_shell_quote (export->temp_file);
 873                         quoted_settings_filename = g_shell_quote (print_settings_file);
 874                         cmd = g_strdup_printf ("evince-previewer --unlink-tempfile --print-settings %s %s",
 875                                                quoted_settings_filename, quoted_filename);
 876
 877                         g_shell_parse_argv (cmd, &argc, &argv, &error);
 878
 879                         g_free (quoted_filename);
 880                         g_free (quoted_settings_filename);
 881                         g_free (cmd);
 882
 883                         if (!error) {
 884                                 gdk_spawn_on_screen (gtk_window_get_screen (export->parent_window),
 885                                                      NULL, argv, NULL,
 886                                                      G_SPAWN_SEARCH_PATH,
 887                                                      NULL, NULL, NULL,
 888                                                      &error);
 889                         }
 890
 891                         g_strfreev (argv);
 892                 }
 893
 894                 if (error) {
 895                         if (print_settings_file)
 896                                 g_unlink (print_settings_file);
 897                         g_free (print_settings_file);
 898                 } else {
 899                         g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_APPLY);
 900                         /* temp_file will be deleted by the previewer */
 901
 902                         ev_print_operation_export_run_next (export);
 903                 }
 904         } else {
 905                 GtkPrintJob *job;
 906
 907                 job = gtk_print_job_new (export->job_name,
 908                                          export->printer,
 909                                          settings,
 910                                          export->page_setup);
 911                 gtk_print_job_set_source_file (job, export->temp_file, &error);
 912                 if (!error){
 913                         gtk_print_job_send (job,
 914                                             (GtkPrintJobCompleteFunc)gtk_print_job_finished,
 915                                             g_object_ref (export),
 916                                             (GDestroyNotify)g_object_unref);
 917                 }
 918         }
 919         g_object_unref (settings);
 920
 921         if (error) {
 922                 g_set_error_literal (&export->error,
 923                                      GTK_PRINT_ERROR,
 924                                      GTK_PRINT_ERROR_GENERAL,
 925                                      error->message);
 926                 g_error_free (error);
 927                 ev_print_operation_export_clear_temp_file (export);
 928                 g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_ERROR);
 929
 930                 ev_print_operation_export_run_next (export);
 931         }
 932 }
 933
 934 static void
 935 export_print_page_idle_finished (EvPrintOperationExport *export)
 936 {
 937         export->idle_id = 0;
 938 }
 939
 940 static void
 941 export_job_finished (EvJobExport            *job,
 942                      EvPrintOperationExport *export)
 943 {
 944         EvPrintOperation *op = EV_PRINT_OPERATION (export);
 945
 946         if (export->pages_per_sheet == 1 ||
 947            ( export->page_count % export->pages_per_sheet == 0 &&
 948            ( export->page_set == GTK_PAGE_SET_ALL ||
 949            ( export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 == 0 ) ||
 950            ( export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 == 1 ) ) ) ) {
 951
 952                 ev_document_doc_mutex_lock ();
 953                 ev_file_exporter_end_page (EV_FILE_EXPORTER (op->document));
 954                 ev_document_doc_mutex_unlock ();
 955         }
 956
 957         /* Reschedule */
 958         export->idle_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 959                                            (GSourceFunc)export_print_page,
 960                                            export,
 961                                            (GDestroyNotify)export_print_page_idle_finished);
 962 }
 963
 964 static void
 965 export_job_cancelled (EvJobExport            *job,
 966                       EvPrintOperationExport *export)
 967 {
 968         export_cancel (export);
 969 }
 970
 971 static void
 972 export_cancel (EvPrintOperationExport *export)
 973 {
 974         EvPrintOperation *op = EV_PRINT_OPERATION (export);
 975
 976         if (export->idle_id > 0)
 977                 g_source_remove (export->idle_id);
 978         export->idle_id = 0;
 979
 980         if (export->job_export) {
 981                 g_signal_handlers_disconnect_by_func (export->job_export,
 982                                                       export_job_finished,
 983                                                       export);
 984                 g_signal_handlers_disconnect_by_func (export->job_export,
 985                                                       export_job_cancelled,
 986                                                       export);
 987                 g_object_unref (export->job_export);
 988                 export->job_export = NULL;
 989         }
 990
 991         if (export->fd != -1) {
 992                 close (export->fd);
 993                 export->fd = -1;
 994         }
 995
 996         ev_print_operation_export_clear_temp_file (export);
 997
 998         g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_CANCEL);
 999
1000         ev_print_operation_export_run_next (export);
1001 }
1002
1003 static void
1004 update_progress (EvPrintOperationExport *export)
1005 {
1006         EvPrintOperation *op = EV_PRINT_OPERATION (export);
1007
1008         ev_print_operation_update_status (op, export->total,
1009                                           export->n_pages_to_print,
1010                                           export->total / (gdouble)export->n_pages_to_print);
1011 }
1012
1013 static gboolean
1014 export_print_page (EvPrintOperationExport *export)
1015 {
1016         EvPrintOperation *op = EV_PRINT_OPERATION (export);
1017
1018         if (!export->temp_file)
1019                 return FALSE; /* cancelled */
1020
1021         export->total++;
1022         export->collated++;
1023
1024         /* note: when collating, page_count is increased in export_print_inc_page */
1025         if (!export->collate) {
1026                 export->page_count++;
1027                 export->sheet = 1 + (export->page_count - 1) / export->pages_per_sheet;
1028         }
1029
1030         if (export->collated == export->collated_copies) {
1031                 export->collated = 0;
1032                 if (!export_print_inc_page (export)) {
1033                         ev_document_doc_mutex_lock ();
1034                         ev_file_exporter_end (EV_FILE_EXPORTER (op->document));
1035                         ev_document_doc_mutex_unlock ();
1036
1037                         close (export->fd);
1038                         export->fd = -1;
1039                         update_progress (export);
1040                         export_print_done (export);
1041
1042                         return FALSE;
1043                 }
1044         }
1045
1046         /* we're not collating and we've reached a sheet from the wrong sheet set */
1047         if (!export->collate &&
1048             ((export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 != 0) ||
1049             (export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 != 1))) {
1050
1051                 do {
1052                         export->page_count++;
1053                         export->collated++;
1054                         export->sheet = 1 + (export->page_count - 1) / export->pages_per_sheet;
1055
1056                         if (export->collated == export->collated_copies) {
1057                                 export->collated = 0;
1058
1059                                 if (!export_print_inc_page (export)) {
1060                                         ev_document_doc_mutex_lock ();
1061                                         ev_file_exporter_end (EV_FILE_EXPORTER (op->document));
1062                                         ev_document_doc_mutex_unlock ();
1063
1064                                         close (export->fd);
1065                                         export->fd = -1;
1066
1067                                         update_progress (export);
1068
1069                                         export_print_done (export);
1070                                         return FALSE;
1071                                 }
1072                         }
1073
1074                 } while ((export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 != 0) ||
1075                           (export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 != 1));
1076
1077         }
1078
1079         if (export->pages_per_sheet == 1 ||
1080             (export->page_count % export->pages_per_sheet == 1 &&
1081             (export->page_set == GTK_PAGE_SET_ALL ||
1082             (export->page_set == GTK_PAGE_SET_EVEN && export->sheet % 2 == 0) ||
1083             (export->page_set == GTK_PAGE_SET_ODD && export->sheet % 2 == 1)))) {
1084                 ev_document_doc_mutex_lock ();
1085                 ev_file_exporter_begin_page (EV_FILE_EXPORTER (op->document));
1086                 ev_document_doc_mutex_unlock ();
1087         }
1088
1089         if (!export->job_export) {
1090                 export->job_export = ev_job_export_new (op->document);
1091                 g_signal_connect (export->job_export, "finished",
1092                                   G_CALLBACK (export_job_finished),
1093                                   (gpointer)export);
1094                 g_signal_connect (export->job_export, "cancelled",
1095                                   G_CALLBACK (export_job_cancelled),
1096                                   (gpointer)export);
1097         }
1098
1099         ev_job_export_set_page (EV_JOB_EXPORT (export->job_export), export->page);
1100         ev_job_scheduler_push_job (export->job_export, EV_JOB_PRIORITY_NONE);
1101
1102         update_progress (export);
1103
1104         return FALSE;
1105 }
1106
1107 static void
1108 ev_print_operation_export_begin (EvPrintOperationExport *export)
1109 {
1110         EvPrintOperation *op = EV_PRINT_OPERATION (export);
1111
1112         if (!export->temp_file)
1113                 return; /* cancelled */
1114
1115         ev_document_doc_mutex_lock ();
1116         ev_file_exporter_begin (EV_FILE_EXPORTER (op->document), &export->fc);
1117         ev_document_doc_mutex_unlock ();
1118
1119         export->idle_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
1120                                            (GSourceFunc)export_print_page,
1121                                            export,
1122                                            (GDestroyNotify)export_print_page_idle_finished);
1123 }
1124
1125 static void
1126 ev_print_operation_export_print_dialog_response_cb (GtkDialog              *dialog,
1127                                                     gint                    response,
1128                                                     EvPrintOperationExport *export)
1129 {
1130         GtkPrintPages     print_pages;
1131         GtkPrintSettings *print_settings;
1132         GtkPageSetup     *page_setup;
1133         GtkPrinter       *printer;
1134         gdouble           scale;
1135         gdouble           width;
1136         gdouble           height;
1137         gint              first_page;
1138         gint              last_page;
1139         const gchar      *file_format;
1140         gchar            *filename;
1141         GError           *error = NULL;
1142         EvPrintOperation *op = EV_PRINT_OPERATION (export);
1143
1144         if (response != GTK_RESPONSE_OK &&
1145             response != GTK_RESPONSE_APPLY) {
1146                 gtk_widget_destroy (GTK_WIDGET (dialog));
1147                 g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_CANCEL);
1148
1149                 return;
1150         }
1151
1152         export->print_preview = (response == GTK_RESPONSE_APPLY);
1153
1154         printer = gtk_print_unix_dialog_get_selected_printer (GTK_PRINT_UNIX_DIALOG (dialog));
1155         ev_print_operation_export_set_printer (export, printer);
1156
1157         print_settings = gtk_print_unix_dialog_get_settings (GTK_PRINT_UNIX_DIALOG (dialog));
1158         ev_print_operation_export_set_print_settings (op, print_settings);
1159
1160         page_setup = gtk_print_unix_dialog_get_page_setup (GTK_PRINT_UNIX_DIALOG (dialog));
1161         ev_print_operation_export_set_default_page_setup (op, page_setup);
1162
1163         if (!gtk_printer_accepts_ps (export->printer)) {
1164                 gtk_widget_destroy (GTK_WIDGET (dialog));
1165
1166                 g_set_error_literal (&export->error,
1167                                      GTK_PRINT_ERROR,
1168                                      GTK_PRINT_ERROR_GENERAL,
1169                                      _("Printing is not supported on this printer."));
1170                 g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_ERROR);
1171
1172                 return;
1173         }
1174
1175         file_format = gtk_print_settings_get (print_settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT);
1176
1177         filename = g_strdup_printf ("evince_print.%s.XXXXXX", file_format != NULL ? file_format : "");
1178         export->fd = g_file_open_tmp (filename, &export->temp_file, &error);
1179         g_free (filename);
1180         if (export->fd <= -1) {
1181                 gtk_widget_destroy (GTK_WIDGET (dialog));
1182
1183                 g_set_error_literal (&export->error,
1184                                      GTK_PRINT_ERROR,
1185                                      GTK_PRINT_ERROR_GENERAL,
1186                                      error->message);
1187                 g_error_free (error);
1188                 g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_ERROR);
1189
1190                 return;
1191         }
1192
1193         export->current_page = gtk_print_unix_dialog_get_current_page (GTK_PRINT_UNIX_DIALOG (dialog));
1194         export->page_set = gtk_print_settings_get_page_set (print_settings);
1195         print_pages = gtk_print_settings_get_print_pages (print_settings);
1196
1197         switch (print_pages) {
1198         case GTK_PRINT_PAGES_CURRENT:
1199                 export->ranges = &export->one_range;
1200
1201                 export->ranges[0].start = export->current_page;
1202                 export->ranges[0].end = export->current_page;
1203                 export->n_ranges = 1;
1204
1205                 break;
1206         case GTK_PRINT_PAGES_RANGES: {
1207                 gint i;
1208
1209                 export->ranges = gtk_print_settings_get_page_ranges (print_settings, &export->n_ranges);
1210                 for (i = 0; i < export->n_ranges; i++)
1211                         if (export->ranges[i].end == -1 || export->ranges[i].end >= export->n_pages)
1212                                 export->ranges[i].end = export->n_pages - 1;
1213         }
1214                 break;
1215         default:
1216                 g_warning ("Unsupported print pages setting\n");
1217         case GTK_PRINT_PAGES_ALL:
1218                 export->ranges = &export->one_range;
1219
1220                 export->ranges[0].start = 0;
1221                 export->ranges[0].end = export->n_pages - 1;
1222                 export->n_ranges = 1;
1223
1224                 break;
1225         }
1226
1227         if (export->n_ranges < 1 || !clamp_ranges (export)) {
1228                 GtkWidget *message_dialog;
1229
1230                 message_dialog = gtk_message_dialog_new (GTK_WINDOW (dialog),
1231                                                  GTK_DIALOG_MODAL,
1232                                                  GTK_MESSAGE_WARNING,
1233                                                  GTK_BUTTONS_CLOSE,
1234                                                  "%s", _("Invalid page selection"));
1235                 gtk_window_set_title (GTK_WINDOW (message_dialog), _("Warning"));
1236                 gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (message_dialog),
1237                                                           "%s", _("Your print range selection does not include any page"));
1238                 g_signal_connect (message_dialog, "response",
1239                                   G_CALLBACK (gtk_widget_destroy),
1240                                   NULL);
1241                 gtk_widget_show (message_dialog);
1242
1243                 return;
1244         } else  ev_print_operation_update_status (op, -1, -1, 0.0);
1245
1246         width = gtk_page_setup_get_paper_width (page_setup, GTK_UNIT_POINTS);
1247         height = gtk_page_setup_get_paper_height (page_setup, GTK_UNIT_POINTS);
1248         scale = gtk_print_settings_get_scale (print_settings) * 0.01;
1249         if (scale != 1.0) {
1250                 width *= scale;
1251                 height *= scale;
1252         }
1253
1254         export->pages_per_sheet = MAX (1, gtk_print_settings_get_number_up (print_settings));
1255
1256         export->copies = gtk_print_settings_get_n_copies (print_settings);
1257         export->collate = gtk_print_settings_get_collate (print_settings);
1258         export->reverse = gtk_print_settings_get_reverse (print_settings);
1259
1260         if (export->collate) {
1261                 export->uncollated_copies = export->copies;
1262                 export->collated_copies = 1;
1263         } else {
1264                 export->uncollated_copies = 1;
1265                 export->collated_copies = export->copies;
1266         }
1267
1268         if (export->reverse) {
1269                 export->range = export->n_ranges - 1;
1270                 export->inc = -1;
1271         } else {
1272                 export->range = 0;
1273                 export->inc = 1;
1274         }
1275         find_range (export);
1276
1277         export->page = export->start - export->inc;
1278         export->collated = export->collated_copies - 1;
1279
1280         get_first_and_last_page (export, &first_page, &last_page);
1281
1282         export->fc.format = file_format && g_ascii_strcasecmp (file_format, "pdf") == 0 ?
1283                 EV_FILE_FORMAT_PDF : EV_FILE_FORMAT_PS;
1284         export->fc.filename = export->temp_file;
1285         export->fc.first_page = MIN (first_page, last_page);
1286         export->fc.last_page = MAX (first_page, last_page);
1287         export->fc.paper_width = width;
1288         export->fc.paper_height = height;
1289         export->fc.duplex = FALSE;
1290         export->fc.pages_per_sheet = export->pages_per_sheet;
1291
1292         if (ev_print_queue_is_empty (op->document))
1293                 ev_print_operation_export_begin (export);
1294
1295         ev_print_queue_push (op);
1296
1297         g_signal_emit (op, signals[BEGIN_PRINT], 0);
1298
1299         gtk_widget_destroy (GTK_WIDGET (dialog));
1300 }
1301
1302 static void
1303 ev_print_operation_export_run (EvPrintOperation *op,
1304                                GtkWindow        *parent)
1305 {
1306         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
1307         GtkWidget              *dialog;
1308         GtkPrintCapabilities    capabilities;
1309
1310         ev_print_queue_init ();
1311
1312         export->parent_window = parent;
1313         export->error = NULL;
1314
1315         dialog = gtk_print_unix_dialog_new (_("Print"), parent);
1316         gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
1317
1318         capabilities = GTK_PRINT_CAPABILITY_PREVIEW |
1319                 ev_file_exporter_get_capabilities (EV_FILE_EXPORTER (op->document));
1320         gtk_print_unix_dialog_set_manual_capabilities (GTK_PRINT_UNIX_DIALOG (dialog),
1321                                                        capabilities);
1322 #if GTK_CHECK_VERSION (2, 17, 4)
1323         gtk_print_unix_dialog_set_embed_page_setup (GTK_PRINT_UNIX_DIALOG (dialog),
1324                                                     export->embed_page_setup);
1325 #endif
1326
1327         gtk_print_unix_dialog_set_current_page (GTK_PRINT_UNIX_DIALOG (dialog),
1328                                                 export->current_page);
1329
1330         gtk_print_unix_dialog_set_settings (GTK_PRINT_UNIX_DIALOG (dialog),
1331                                             export->print_settings);
1332
1333         if (export->page_setup)
1334                 gtk_print_unix_dialog_set_page_setup (GTK_PRINT_UNIX_DIALOG (dialog),
1335                                                       export->page_setup);
1336
1337         g_signal_connect (dialog, "response",
1338                           G_CALLBACK (ev_print_operation_export_print_dialog_response_cb),
1339                           export);
1340
1341         gtk_window_present (GTK_WINDOW (dialog));
1342 }
1343
1344 static void
1345 ev_print_operation_export_cancel (EvPrintOperation *op)
1346 {
1347         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
1348
1349         if (export->job_export &&
1350             !ev_job_is_finished (export->job_export)) {
1351                 ev_job_cancel (export->job_export);
1352         } else {
1353                 export_cancel (export);
1354         }
1355 }
1356
1357 static void
1358 ev_print_operation_export_get_error (EvPrintOperation *op,
1359                                      GError          **error)
1360 {
1361         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
1362
1363         g_propagate_error (error, export->error);
1364         export->error = NULL;
1365 }
1366
1367 static void
1368 ev_print_operation_export_set_embed_page_setup (EvPrintOperation *op,
1369                                                 gboolean          embed)
1370 {
1371 #if GTK_CHECK_VERSION (2, 17, 4)
1372         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
1373
1374         export->embed_page_setup = embed;
1375 #endif
1376 }
1377
1378 static gboolean
1379 ev_print_operation_export_get_embed_page_setup (EvPrintOperation *op)
1380 {
1381         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (op);
1382
1383         return export->embed_page_setup;
1384 }
1385
1386 static void
1387 ev_print_operation_export_finalize (GObject *object)
1388 {
1389         EvPrintOperationExport *export = EV_PRINT_OPERATION_EXPORT (object);
1390
1391         if (export->idle_id > 0) {
1392                 g_source_remove (export->idle_id);
1393                 export->idle_id = 0;
1394         }
1395
1396         if (export->fd != -1) {
1397                 close (export->fd);
1398                 export->fd = -1;
1399         }
1400
1401         if (export->ranges) {
1402                 if (export->ranges != &export->one_range)
1403                         g_free (export->ranges);
1404                 export->ranges = NULL;
1405                 export->n_ranges = 0;
1406         }
1407
1408         if (export->temp_file) {
1409                 g_free (export->temp_file);
1410                 export->temp_file = NULL;
1411         }
1412
1413         if (export->job_name) {
1414                 g_free (export->job_name);
1415                 export->job_name = NULL;
1416         }
1417
1418         if (export->job_export) {
1419                 if (!ev_job_is_finished (export->job_export))
1420                         ev_job_cancel (export->job_export);
1421                 g_signal_handlers_disconnect_by_func (export->job_export,
1422                                                       export_job_finished,
1423                                                       export);
1424                 g_signal_handlers_disconnect_by_func (export->job_export,
1425                                                       export_job_cancelled,
1426                                                       export);
1427                 g_object_unref (export->job_export);
1428                 export->job_export = NULL;
1429         }
1430
1431         if (export->error) {
1432                 g_error_free (export->error);
1433                 export->error = NULL;
1434         }
1435
1436         if (export->print_settings) {
1437                 g_object_unref (export->print_settings);
1438                 export->print_settings = NULL;
1439         }
1440
1441         if (export->page_setup) {
1442                 g_object_unref (export->page_setup);
1443                 export->page_setup = NULL;
1444         }
1445
1446         if (export->printer) {
1447                 g_object_unref (export->printer);
1448                 export->printer = NULL;
1449         }
1450
1451         (* G_OBJECT_CLASS (ev_print_operation_export_parent_class)->finalize) (object);
1452 }
1453
1454 static void
1455 ev_print_operation_export_init (EvPrintOperationExport *export)
1456 {
1457         /* sheets are counted from 1 to be physical */
1458         export->sheet = 1;
1459 }
1460
1461 static GObject *
1462 ev_print_operation_export_constructor (GType                  type,
1463                                        guint                  n_construct_properties,
1464                                        GObjectConstructParam *construct_params)
1465 {
1466         GObject                *object;
1467         EvPrintOperationExport *export;
1468         EvPrintOperation       *op;
1469
1470         object = G_OBJECT_CLASS (ev_print_operation_export_parent_class)->constructor (type,
1471                                                                                        n_construct_properties,
1472                                                                                        construct_params);
1473         export = EV_PRINT_OPERATION_EXPORT (object);
1474         op = EV_PRINT_OPERATION (object);
1475         export->n_pages = ev_document_get_n_pages (op->document);
1476
1477         return object;
1478 }
1479
1480 static void
1481 ev_print_operation_export_class_init (EvPrintOperationExportClass *klass)
1482 {
1483         GObjectClass          *g_object_class = G_OBJECT_CLASS (klass);
1484         EvPrintOperationClass *ev_print_op_class = EV_PRINT_OPERATION_CLASS (klass);
1485
1486         ev_print_op_class->set_current_page = ev_print_operation_export_set_current_page;
1487         ev_print_op_class->set_print_settings = ev_print_operation_export_set_print_settings;
1488         ev_print_op_class->get_print_settings = ev_print_operation_export_get_print_settings;
1489         ev_print_op_class->set_default_page_setup = ev_print_operation_export_set_default_page_setup;
1490         ev_print_op_class->get_default_page_setup = ev_print_operation_export_get_default_page_setup;
1491         ev_print_op_class->set_job_name = ev_print_operation_export_set_job_name;
1492         ev_print_op_class->get_job_name = ev_print_operation_export_get_job_name;
1493         ev_print_op_class->run = ev_print_operation_export_run;
1494         ev_print_op_class->cancel = ev_print_operation_export_cancel;
1495         ev_print_op_class->get_error = ev_print_operation_export_get_error;
1496         ev_print_op_class->set_embed_page_setup = ev_print_operation_export_set_embed_page_setup;
1497         ev_print_op_class->get_embed_page_setup = ev_print_operation_export_get_embed_page_setup;
1498
1499         g_object_class->constructor = ev_print_operation_export_constructor;
1500         g_object_class->finalize = ev_print_operation_export_finalize;
1501 }
1502
1503 #endif /* GTKUNIXPRINT_ENABLED */
1504
1505 #if GTK_CHECK_VERSION (2, 17, 1)
1506 /* Print to cairo interface */
1507 #define EV_TYPE_PRINT_OPERATION_PRINT         (ev_print_operation_print_get_type())
1508 #define EV_PRINT_OPERATION_PRINT(object)      (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_PRINT_OPERATION_PRINT, EvPrintOperationPrint))
1509 #define EV_PRINT_OPERATION_PRINT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_PRINT_OPERATION_PRINT, EvPrintOperationPrintClass))
1510 #define EV_IS_PRINT_OPERATION_PRINT(object)   (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_PRINT_OPERATION_PRINT))
1511
1512 typedef struct _EvPrintOperationPrint      EvPrintOperationPrint;
1513 typedef struct _EvPrintOperationPrintClass EvPrintOperationPrintClass;
1514
1515 static GType ev_print_operation_print_get_type (void) G_GNUC_CONST;
1516
1517 struct _EvPrintOperationPrint {
1518         EvPrintOperation parent;
1519
1520         GtkPrintOperation *op;
1521         gint               n_pages_to_print;
1522         gint               total;
1523         EvJob             *job_print;
1524         gchar             *job_name;
1525 };
1526
1527 struct _EvPrintOperationPrintClass {
1528         EvPrintOperationClass parent_class;
1529 };
1530
1531 G_DEFINE_TYPE (EvPrintOperationPrint, ev_print_operation_print, EV_TYPE_PRINT_OPERATION)
1532
1533 static void
1534 ev_print_operation_print_set_current_page (EvPrintOperation *op,
1535                                            gint              current_page)
1536 {
1537         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1538
1539         gtk_print_operation_set_current_page (print->op, current_page);
1540 }
1541
1542 static void
1543 ev_print_operation_print_set_print_settings (EvPrintOperation *op,
1544                                              GtkPrintSettings *print_settings)
1545 {
1546         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1547
1548         gtk_print_operation_set_print_settings (print->op, print_settings);
1549 }
1550
1551 static GtkPrintSettings *
1552 ev_print_operation_print_get_print_settings (EvPrintOperation *op)
1553 {
1554         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1555
1556         return gtk_print_operation_get_print_settings (print->op);
1557 }
1558
1559 static void
1560 ev_print_operation_print_set_default_page_setup (EvPrintOperation *op,
1561                                                  GtkPageSetup     *page_setup)
1562 {
1563         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1564
1565         gtk_print_operation_set_default_page_setup (print->op, page_setup);
1566 }
1567
1568 static GtkPageSetup *
1569 ev_print_operation_print_get_default_page_setup (EvPrintOperation *op)
1570 {
1571         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1572
1573         return gtk_print_operation_get_default_page_setup (print->op);
1574 }
1575
1576 static void
1577 ev_print_operation_print_set_job_name (EvPrintOperation *op,
1578                                        const gchar      *job_name)
1579 {
1580         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1581
1582         g_free (print->job_name);
1583         print->job_name = g_strdup (job_name);
1584
1585         gtk_print_operation_set_job_name (print->op, print->job_name);
1586 }
1587
1588 static const gchar *
1589 ev_print_operation_print_get_job_name (EvPrintOperation *op)
1590 {
1591         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1592
1593         if (!print->job_name) {
1594                 gchar *name;
1595
1596                 g_object_get (print->op, "job_name", &name, NULL);
1597                 print->job_name = name;
1598         }
1599
1600         return print->job_name;
1601 }
1602
1603 static void
1604 ev_print_operation_print_run (EvPrintOperation *op,
1605                               GtkWindow        *parent)
1606 {
1607         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1608
1609         gtk_print_operation_run (print->op,
1610                                  GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
1611                                  parent, NULL);
1612 }
1613
1614 static void
1615 ev_print_operation_print_cancel (EvPrintOperation *op)
1616 {
1617         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1618
1619         gtk_print_operation_cancel (print->op);
1620 }
1621
1622 static void
1623 ev_print_operation_print_get_error (EvPrintOperation *op,
1624                                     GError          **error)
1625 {
1626         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1627
1628         gtk_print_operation_get_error (print->op, error);
1629 }
1630
1631 static void
1632 ev_print_operation_print_set_embed_page_setup (EvPrintOperation *op,
1633                                                gboolean          embed)
1634 {
1635 #if GTK_CHECK_VERSION (2, 17, 4)
1636         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1637
1638         gtk_print_operation_set_embed_page_setup (print->op, embed);
1639 #endif
1640 }
1641
1642 static gboolean
1643 ev_print_operation_print_get_embed_page_setup (EvPrintOperation *op)
1644 {
1645 #if GTK_CHECK_VERSION (2, 17, 4)
1646         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (op);
1647
1648         return gtk_print_operation_get_embed_page_setup (print->op);
1649 #else
1650         return FALSE;
1651 #endif
1652 }
1653
1654 static void
1655 ev_print_operation_print_begin_print (EvPrintOperationPrint *print,
1656                                       GtkPrintContext       *context)
1657 {
1658         EvPrintOperation *op = EV_PRINT_OPERATION (print);
1659         gint              n_pages;
1660
1661         n_pages = ev_document_get_n_pages (op->document);
1662         gtk_print_operation_set_n_pages (print->op, n_pages);
1663         ev_print_operation_update_status (op, -1, n_pages, 0);
1664
1665         g_signal_emit (op, signals[BEGIN_PRINT], 0);
1666 }
1667
1668 static void
1669 ev_print_operation_print_done (EvPrintOperationPrint  *print,
1670                                GtkPrintOperationResult result)
1671 {
1672         EvPrintOperation *op = EV_PRINT_OPERATION (print);
1673
1674         ev_print_operation_update_status (op, 0, print->n_pages_to_print, 1.0);
1675
1676         g_signal_emit (op, signals[DONE], 0, result);
1677 }
1678
1679 static void
1680 ev_print_operation_print_status_changed (EvPrintOperationPrint *print)
1681 {
1682 #ifdef HAVE_GTK_PRINT_OPERATION_GET_N_PAGES_TO_PRINT
1683         GtkPrintStatus status;
1684
1685         status = gtk_print_operation_get_status (print->op);
1686         if (status == GTK_PRINT_STATUS_GENERATING_DATA)
1687                 print->n_pages_to_print = gtk_print_operation_get_n_pages_to_print (print->op);
1688 #endif
1689 }
1690
1691 static void
1692 print_job_finished (EvJobPrint            *job,
1693                     EvPrintOperationPrint *print)
1694 {
1695         EvPrintOperation *op = EV_PRINT_OPERATION (print);
1696
1697         gtk_print_operation_draw_page_finish (print->op);
1698 #ifdef HAVE_GTK_PRINT_OPERATION_GET_N_PAGES_TO_PRINT
1699         print->total++;
1700         ev_print_operation_update_status (op, print->total,
1701                                           print->n_pages_to_print,
1702                                           print->total / (gdouble)print->n_pages_to_print);
1703 #endif
1704         ev_job_print_set_cairo (job, NULL);
1705 }
1706
1707 static void
1708 print_job_cancelled (EvJobPrint            *job,
1709                      EvPrintOperationPrint *print)
1710 {
1711         gtk_print_operation_cancel (print->op);
1712 }
1713
1714 static void
1715 ev_print_operation_print_request_page_setup (EvPrintOperationPrint *print,
1716                                              GtkPrintContext       *context,
1717                                              gint                   page_nr,
1718                                              GtkPageSetup          *setup)
1719 {
1720         EvPrintOperation *op = EV_PRINT_OPERATION (print);
1721         gdouble           width, height;
1722
1723         ev_document_get_page_size (op->document, page_nr,
1724                                    &width, &height);
1725         if (width > height)
1726                 gtk_page_setup_set_orientation (setup, GTK_PAGE_ORIENTATION_LANDSCAPE);
1727         else
1728                 gtk_page_setup_set_orientation (setup, GTK_PAGE_ORIENTATION_PORTRAIT);
1729 }
1730
1731 static void
1732 ev_print_operation_print_draw_page (EvPrintOperationPrint *print,
1733                                     GtkPrintContext       *context,
1734                                     gint                   page)
1735 {
1736         EvPrintOperation *op = EV_PRINT_OPERATION (print);
1737         cairo_t          *cr;
1738         gdouble           cr_width, cr_height;
1739         gdouble           width, height, scale;
1740
1741         gtk_print_operation_set_defer_drawing (print->op);
1742
1743         if (!print->job_print) {
1744                 print->job_print = ev_job_print_new (op->document);
1745                 g_signal_connect (G_OBJECT (print->job_print), "finished",
1746                                   G_CALLBACK (print_job_finished),
1747                                   (gpointer)print);
1748                 g_signal_connect (G_OBJECT (print->job_print), "cancelled",
1749                                   G_CALLBACK (print_job_cancelled),
1750                                   (gpointer)print);
1751         }
1752
1753         ev_job_print_set_page (EV_JOB_PRINT (print->job_print), page);
1754
1755         cr = gtk_print_context_get_cairo_context (context);
1756         cr_width = gtk_print_context_get_width (context);
1757         cr_height = gtk_print_context_get_height (context);
1758         ev_document_get_page_size (op->document, page,
1759                                    &width, &height);
1760         if (cr_width / width < cr_height / height)
1761                 scale = cr_width / width;
1762         else
1763                 scale = cr_height / height;
1764         cairo_scale (cr, scale, scale);
1765
1766         ev_job_print_set_cairo (EV_JOB_PRINT (print->job_print), cr);
1767         ev_job_scheduler_push_job (print->job_print, EV_JOB_PRIORITY_NONE);
1768 }
1769
1770 static void
1771 ev_print_operation_print_finalize (GObject *object)
1772 {
1773         EvPrintOperationPrint *print = EV_PRINT_OPERATION_PRINT (object);
1774
1775         if (print->op) {
1776                 g_object_unref (print->op);
1777                 print->op = NULL;
1778         }
1779
1780         if (print->job_name) {
1781                 g_free (print->job_name);
1782                 print->job_name = NULL;
1783         }
1784
1785         if (print->job_print) {
1786                 if (!ev_job_is_finished (print->job_print))
1787                         ev_job_cancel (print->job_print);
1788                 g_signal_handlers_disconnect_by_func (print->job_print,
1789                                                       print_job_finished,
1790                                                       print);
1791                 g_signal_handlers_disconnect_by_func (print->job_print,
1792                                                       print_job_cancelled,
1793                                                       print);
1794                 g_object_unref (print->job_print);
1795                 print->job_print = NULL;
1796         }
1797
1798         (* G_OBJECT_CLASS (ev_print_operation_print_parent_class)->finalize) (object);
1799 }
1800
1801 static void
1802 ev_print_operation_print_init (EvPrintOperationPrint *print)
1803 {
1804         print->op = gtk_print_operation_new ();
1805         g_signal_connect_swapped (print->op, "begin_print",
1806                                   G_CALLBACK (ev_print_operation_print_begin_print),
1807                                   print);
1808         g_signal_connect_swapped (print->op, "done",
1809                                   G_CALLBACK (ev_print_operation_print_done),
1810                                   print);
1811         g_signal_connect_swapped (print->op, "draw_page",
1812                                   G_CALLBACK (ev_print_operation_print_draw_page),
1813                                   print);
1814         g_signal_connect_swapped (print->op, "status_changed",
1815                                   G_CALLBACK (ev_print_operation_print_status_changed),
1816                                   print);
1817         g_signal_connect_swapped (print->op, "request_page_setup",
1818                                   G_CALLBACK (ev_print_operation_print_request_page_setup),
1819                                   print);
1820         gtk_print_operation_set_allow_async (print->op, TRUE);
1821 }
1822
1823 static void
1824 ev_print_operation_print_class_init (EvPrintOperationPrintClass *klass)
1825 {
1826         GObjectClass          *g_object_class = G_OBJECT_CLASS (klass);
1827         EvPrintOperationClass *ev_print_op_class = EV_PRINT_OPERATION_CLASS (klass);
1828
1829         ev_print_op_class->set_current_page = ev_print_operation_print_set_current_page;
1830         ev_print_op_class->set_print_settings = ev_print_operation_print_set_print_settings;
1831         ev_print_op_class->get_print_settings = ev_print_operation_print_get_print_settings;
1832         ev_print_op_class->set_default_page_setup = ev_print_operation_print_set_default_page_setup;
1833         ev_print_op_class->get_default_page_setup = ev_print_operation_print_get_default_page_setup;
1834         ev_print_op_class->set_job_name = ev_print_operation_print_set_job_name;
1835         ev_print_op_class->get_job_name = ev_print_operation_print_get_job_name;
1836         ev_print_op_class->run = ev_print_operation_print_run;
1837         ev_print_op_class->cancel = ev_print_operation_print_cancel;
1838         ev_print_op_class->get_error = ev_print_operation_print_get_error;
1839         ev_print_op_class->set_embed_page_setup = ev_print_operation_print_set_embed_page_setup;
1840         ev_print_op_class->get_embed_page_setup = ev_print_operation_print_get_embed_page_setup;
1841
1842         g_object_class->finalize = ev_print_operation_print_finalize;
1843 }
1844 #endif /* GTK_CHECK_VERSION (2, 17, 1) */
1845
1846 gboolean ev_print_operation_exists_for_document (EvDocument *document)
1847 {
1848 #if GTKUNIXPRINT_ENABLED
1849 #if GTK_CHECK_VERSION (2, 17, 1)
1850         return (EV_IS_FILE_EXPORTER(document) || EV_IS_DOCUMENT_PRINT(document));
1851 #else
1852         return EV_IS_FILE_EXPORTER(document);
1853 #endif
1854 #else /* ! GTKUNIXPRINT_ENABLED */
1855 #if GTK_CHECK_VERSION (2, 17, 1)
1856         return EV_IS_DOCUMENT_PRINT(document);
1857 #else
1858         return FALSE;
1859 #endif
1860 #endif /* GTKUNIXPRINT_ENABLED */
1861 }
1862
1863 /* Factory method */
1864 EvPrintOperation *
1865 ev_print_operation_new (EvDocument *document)
1866 {
1867         EvPrintOperation *op = NULL;
1868
1869         g_return_val_if_fail (ev_print_operation_exists_for_document (document), NULL);
1870
1871 #if GTK_CHECK_VERSION (2, 17, 1)
1872         if (EV_IS_DOCUMENT_PRINT (document))
1873                 op = EV_PRINT_OPERATION (g_object_new (EV_TYPE_PRINT_OPERATION_PRINT,
1874                                                        "document", document, NULL));
1875         else
1876 #endif
1877 #if GTKUNIXPRINT_ENABLED
1878                 op = EV_PRINT_OPERATION (g_object_new (EV_TYPE_PRINT_OPERATION_EXPORT,
1879                                                        "document", document, NULL));
1880 #endif
1881         return op;
1882 }