pdf/ev-poppler.cc

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* pdfdocument.h: Implementation of EvDocument for PDF
   3  * Copyright (C) 2004, Red Hat, Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2, or (at your option)
   8  * any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU 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 <math.h>
  21 #include <string.h>
  22 #include <gtk/gtk.h>
  23 #include <poppler.h>
  24 #include <poppler-document.h>
  25 #include <poppler-page.h>
  26 #include <glib/gi18n.h>
  27
  28 #include "ev-poppler.h"
  29 #include "ev-ps-exporter.h"
  30 #include "ev-document-find.h"
  31 #include "ev-document-misc.h"
  32 #include "ev-document-links.h"
  33 #include "ev-document-fonts.h"
  34 #include "ev-document-security.h"
  35 #include "ev-document-thumbnails.h"
  36 #include "ev-selection.h"
  37 #include "ev-attachment.h"
  38
  39 typedef struct {
  40         PdfDocument *document;
  41         char *text;
  42         GList **pages;
  43         guint idle;
  44         int start_page;
  45         int search_page;
  46 } PdfDocumentSearch;
  47
  48 struct _PdfDocumentClass
  49 {
  50         GObjectClass parent_class;
  51 };
  52
  53 struct _PdfDocument
  54 {
  55         GObject parent_instance;
  56
  57         PopplerDocument *document;
  58         PopplerPSFile *ps_file;
  59         gchar *password;
  60
  61         PopplerFontInfo *font_info;
  62         PopplerFontsIter *fonts_iter;
  63         int fonts_scanned_pages;
  64
  65         PdfDocumentSearch *search;
  66 };
  67
  68 static void pdf_document_document_iface_init            (EvDocumentIface           *iface);
  69 static void pdf_document_security_iface_init            (EvDocumentSecurityIface   *iface);
  70 static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
  71 static void pdf_document_document_links_iface_init      (EvDocumentLinksIface      *iface);
  72 static void pdf_document_document_fonts_iface_init      (EvDocumentFontsIface      *iface);
  73 static void pdf_document_find_iface_init                (EvDocumentFindIface       *iface);
  74 static void pdf_document_ps_exporter_iface_init         (EvPSExporterIface         *iface);
  75 static void pdf_selection_iface_init                    (EvSelectionIface          *iface);
  76 static void pdf_document_thumbnails_get_dimensions      (EvDocumentThumbnails      *document_thumbnails,
  77                                                          gint                       page,
  78                                                          gint                       size,
  79                                                          gint                      *width,
  80                                                          gint                      *height);
  81 static int  pdf_document_get_n_pages                    (EvDocument                *document);
  82
  83 static EvLink * ev_link_from_action (PopplerAction *action);
  84 static void pdf_document_search_free (PdfDocumentSearch   *search);
  85
  86
  87 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
  88                          {
  89                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
  90                                                         pdf_document_document_iface_init);
  91                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
  92                                                         pdf_document_security_iface_init);
  93                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
  94                                                         pdf_document_document_thumbnails_iface_init);
  95                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
  96                                                         pdf_document_document_links_iface_init);
  97                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
  98                                                         pdf_document_document_fonts_iface_init);
  99                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
 100                                                         pdf_document_find_iface_init);
 101                                  G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER,
 102                                                         pdf_document_ps_exporter_iface_init);
 103                                  G_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 104                                                         pdf_selection_iface_init);
 105                          });
 106
 107
 108 static void
 109 set_rc_data (PdfDocument     *pdf_document,
 110              EvRenderContext *rc)
 111 {
 112         if (rc->data == NULL) {
 113                 rc->data = poppler_document_get_page (pdf_document->document,
 114                                                       rc->page);
 115                 rc->destroy = g_object_unref;
 116         } else {
 117                 g_assert (rc->page == poppler_page_get_index (POPPLER_PAGE (rc->data)));
 118         }
 119 }
 120
 121 static void
 122 pdf_document_search_free (PdfDocumentSearch   *search)
 123 {
 124         PdfDocument *pdf_document = search->document;
 125         int n_pages;
 126         int i;
 127
 128         if (search->idle != 0)
 129                 g_source_remove (search->idle);
 130
 131         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 132         for (i = 0; i < n_pages; i++) {
 133                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 134                 g_list_free (search->pages[i]);
 135         }
 136
 137         g_free (search->text);
 138 }
 139
 140 static void
 141 pdf_document_dispose (GObject *object)
 142 {
 143         PdfDocument *pdf_document = PDF_DOCUMENT(object);
 144
 145         if (pdf_document->search) {
 146                 pdf_document_search_free (pdf_document->search);
 147                 pdf_document->search = NULL;
 148         }
 149
 150         if (pdf_document->document) {
 151                 g_object_unref (pdf_document->document);
 152         }
 153
 154         if (pdf_document->font_info) {
 155                 poppler_font_info_free (pdf_document->font_info);
 156         }
 157
 158         if (pdf_document->fonts_iter) {
 159                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 160         }
 161 }
 162
 163 static void
 164 pdf_document_class_init (PdfDocumentClass *klass)
 165 {
 166         GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
 167
 168         g_object_class->dispose = pdf_document_dispose;
 169 }
 170
 171 static void
 172 pdf_document_init (PdfDocument *pdf_document)
 173 {
 174         pdf_document->password = NULL;
 175 }
 176
 177 static void
 178 convert_error (GError  *poppler_error,
 179                GError **error)
 180 {
 181         if (poppler_error == NULL)
 182                 return;
 183
 184         if (poppler_error->domain == POPPLER_ERROR) {
 185                 /* convert poppler errors into EvDocument errors */
 186                 gint code = EV_DOCUMENT_ERROR_INVALID;
 187                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 188                         code = EV_DOCUMENT_ERROR_INVALID;
 189                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 190                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 191
 192
 193                 g_set_error (error,
 194                              EV_DOCUMENT_ERROR,
 195                              code,
 196                              poppler_error->message,
 197                              NULL);
 198         } else {
 199                 g_propagate_error (error, poppler_error);
 200         }
 201 }
 202
 203
 204 /* EvDocument */
 205 static gboolean
 206 pdf_document_save (EvDocument  *document,
 207                    const char  *uri,
 208                    GError     **error)
 209 {
 210         gboolean retval;
 211         GError *poppler_error = NULL;
 212
 213         retval = poppler_document_save (PDF_DOCUMENT (document)->document,
 214                                         uri,
 215                                         &poppler_error);
 216         if (! retval)
 217                 convert_error (poppler_error, error);
 218
 219         return retval;
 220 }
 221
 222 static gboolean
 223 pdf_document_load (EvDocument   *document,
 224                    const char   *uri,
 225                    GError      **error)
 226 {
 227         GError *poppler_error = NULL;
 228         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 229
 230         pdf_document->document =
 231                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 232
 233         if (pdf_document->document == NULL) {
 234                 convert_error (poppler_error, error);
 235                 return FALSE;
 236         }
 237
 238         return TRUE;
 239 }
 240
 241 static int
 242 pdf_document_get_n_pages (EvDocument *document)
 243 {
 244         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 245 }
 246
 247 static void
 248 pdf_document_get_page_size (EvDocument   *document,
 249                             int           page,
 250                             double       *width,
 251                             double       *height)
 252 {
 253         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 254         PopplerPage *poppler_page;
 255
 256         poppler_page = poppler_document_get_page (pdf_document->document, page);
 257         poppler_page_get_size (poppler_page, width, height);
 258         g_object_unref (poppler_page);
 259 }
 260
 261 static char *
 262 pdf_document_get_page_label (EvDocument *document,
 263                              int         page)
 264 {
 265         PopplerPage *poppler_page;
 266         char *label = NULL;
 267
 268         poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
 269                                                   page);
 270
 271         g_object_get (G_OBJECT (poppler_page),
 272                       "label", &label,
 273                       NULL);
 274         g_object_unref (poppler_page);
 275
 276         return label;
 277 }
 278
 279 static GList *
 280 pdf_document_get_links (EvDocument *document,
 281                         int         page)
 282 {
 283         PdfDocument *pdf_document;
 284         PopplerPage *poppler_page;
 285         GList *retval = NULL;
 286         GList *mapping_list;
 287         GList *list;
 288         double height;
 289
 290         pdf_document = PDF_DOCUMENT (document);
 291         poppler_page = poppler_document_get_page (pdf_document->document,
 292                                                   page);
 293         mapping_list = poppler_page_get_link_mapping (poppler_page);
 294         poppler_page_get_size (poppler_page, NULL, &height);
 295
 296         for (list = mapping_list; list; list = list->next) {
 297                 PopplerLinkMapping *link_mapping;
 298                 EvLinkMapping *ev_link_mapping;
 299
 300                 link_mapping = (PopplerLinkMapping *)list->data;
 301                 ev_link_mapping = g_new (EvLinkMapping, 1);
 302                 ev_link_mapping->link = ev_link_from_action (link_mapping->action);
 303                 ev_link_mapping->x1 = link_mapping->area.x1;
 304                 ev_link_mapping->x2 = link_mapping->area.x2;
 305                 /* Invert this for X-style coordinates */
 306                 ev_link_mapping->y1 = height - link_mapping->area.y2;
 307                 ev_link_mapping->y2 = height - link_mapping->area.y1;
 308
 309                 retval = g_list_prepend (retval, ev_link_mapping);
 310         }
 311
 312         poppler_page_free_link_mapping (mapping_list);
 313         g_object_unref (poppler_page);
 314
 315         return g_list_reverse (retval);
 316 }
 317
 318 static gboolean
 319 pdf_document_has_attachments (EvDocument *document)
 320 {
 321         PdfDocument *pdf_document;
 322
 323         pdf_document = PDF_DOCUMENT (document);
 324
 325         return poppler_document_has_attachments (pdf_document->document);
 326 }
 327
 328 struct SaveToBufferData {
 329         gchar *buffer;
 330         gsize len, max;
 331 };
 332
 333 static gboolean
 334 attachment_save_to_buffer_callback (const gchar  *buf,
 335                                     gsize         count,
 336                                     gpointer      user_data,
 337                                     GError      **error)
 338 {
 339         struct SaveToBufferData *sdata = (SaveToBufferData *)user_data;
 340         gchar *new_buffer;
 341         gsize new_max;
 342
 343         if (sdata->len + count > sdata->max) {
 344                 new_max = MAX (sdata->max * 2, sdata->len + count);
 345                 new_buffer = (gchar *)g_realloc (sdata->buffer, new_max);
 346
 347                 sdata->buffer = new_buffer;
 348                 sdata->max = new_max;
 349         }
 350
 351         memcpy (sdata->buffer + sdata->len, buf, count);
 352         sdata->len += count;
 353
 354         return TRUE;
 355 }
 356
 357 static gboolean
 358 attachment_save_to_buffer (PopplerAttachment  *attachment,
 359                            gchar             **buffer,
 360                            gsize              *buffer_size,
 361                            GError            **error)
 362 {
 363         static const gint initial_max = 1024;
 364         struct SaveToBufferData sdata;
 365
 366         *buffer = NULL;
 367         *buffer_size = 0;
 368
 369         sdata.buffer = (gchar *) g_malloc (initial_max);
 370         sdata.max = initial_max;
 371         sdata.len = 0;
 372
 373         if (! poppler_attachment_save_to_callback (attachment,
 374                                                    attachment_save_to_buffer_callback,
 375                                                    &sdata,
 376                                                    error)) {
 377                 g_free (sdata.buffer);
 378                 return FALSE;
 379         }
 380
 381         *buffer = sdata.buffer;
 382         *buffer_size = sdata.len;
 383
 384         return TRUE;
 385 }
 386
 387 static GList *
 388 pdf_document_get_attachments (EvDocument *document)
 389 {
 390         PdfDocument *pdf_document;
 391         GList *attachments;
 392         GList *list;
 393         GList *retval = NULL;
 394
 395         pdf_document = PDF_DOCUMENT (document);
 396
 397         if (!pdf_document_has_attachments (document))
 398                 return NULL;
 399
 400         attachments = poppler_document_get_attachments (pdf_document->document);
 401
 402         for (list = attachments; list; list = list->next) {
 403                 PopplerAttachment *attachment;
 404                 EvAttachment *ev_attachment;
 405                 gchar *data = NULL;
 406                 gsize size;
 407                 GError *error = NULL;
 408
 409                 attachment = (PopplerAttachment *) list->data;
 410
 411                 if (attachment_save_to_buffer (attachment, &data, &size, &error)) {
 412                         ev_attachment = ev_attachment_new (attachment->name,
 413                                                            attachment->description,
 414                                                            attachment->mtime,
 415                                                            attachment->ctime,
 416                                                            size, data);
 417
 418                         retval = g_list_prepend (retval, ev_attachment);
 419                 } else {
 420                         if (error) {
 421                                 g_warning ("%s", error->message);
 422                                 g_error_free (error);
 423
 424                                 g_free (data);
 425                         }
 426                 }
 427
 428                 g_object_unref (attachment);
 429         }
 430
 431         return g_list_reverse (retval);
 432 }
 433
 434 static GdkPixbuf *
 435 pdf_document_render_pixbuf (EvDocument   *document,
 436                             EvRenderContext *rc)
 437 {
 438         PdfDocument *pdf_document;
 439         GdkPixbuf *pixbuf;
 440         double width_points, height_points;
 441         gint width, height;
 442
 443         pdf_document = PDF_DOCUMENT (document);
 444
 445         set_rc_data (pdf_document, rc);
 446
 447         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
 448
 449         if (rc->rotation == 90 || rc->rotation == 270) {
 450                 width = (int) ((height_points * rc->scale) + 0.5);
 451                 height = (int) ((width_points * rc->scale) + 0.5);
 452         } else {
 453                 width = (int) ((width_points * rc->scale) + 0.5);
 454                 height = (int) ((height_points * rc->scale) + 0.5);
 455         }
 456
 457         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 458                                  FALSE, 8,
 459                                  width, height);
 460
 461         poppler_page_render_to_pixbuf (POPPLER_PAGE (rc->data),
 462                                        0, 0,
 463                                        width, height,
 464                                        rc->scale,
 465                                        rc->rotation,
 466                                        pixbuf);
 467
 468
 469         return pixbuf;
 470 }
 471
 472 /* EvDocumentSecurity */
 473
 474 static gboolean
 475 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 476 {
 477         /* FIXME: do we really need to have this? */
 478         return FALSE;
 479 }
 480
 481 static void
 482 pdf_document_set_password (EvDocumentSecurity *document_security,
 483                            const char         *password)
 484 {
 485         PdfDocument *document = PDF_DOCUMENT (document_security);
 486
 487         if (document->password)
 488                 g_free (document->password);
 489
 490         document->password = g_strdup (password);
 491 }
 492
 493 static gboolean
 494 pdf_document_can_get_text (EvDocument *document)
 495 {
 496         return TRUE;
 497 }
 498
 499 static EvDocumentInfo *
 500 pdf_document_get_info (EvDocument *document)
 501 {
 502         EvDocumentInfo *info;
 503         PopplerPageLayout layout;
 504         PopplerPageMode mode;
 505         PopplerViewerPreferences view_prefs;
 506         PopplerPermissions permissions;
 507
 508         info = g_new0 (EvDocumentInfo, 1);
 509
 510         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 511                             EV_DOCUMENT_INFO_FORMAT |
 512                             EV_DOCUMENT_INFO_AUTHOR |
 513                             EV_DOCUMENT_INFO_SUBJECT |
 514                             EV_DOCUMENT_INFO_KEYWORDS |
 515                             EV_DOCUMENT_INFO_LAYOUT |
 516                             EV_DOCUMENT_INFO_START_MODE |
 517                             EV_DOCUMENT_INFO_PERMISSIONS |
 518                             EV_DOCUMENT_INFO_UI_HINTS |
 519                             EV_DOCUMENT_INFO_CREATOR |
 520                             EV_DOCUMENT_INFO_PRODUCER |
 521                             EV_DOCUMENT_INFO_CREATION_DATE |
 522                             EV_DOCUMENT_INFO_MOD_DATE |
 523                             EV_DOCUMENT_INFO_LINEARIZED |
 524                             EV_DOCUMENT_INFO_N_PAGES |
 525                             EV_DOCUMENT_INFO_SECURITY;
 526
 527
 528         g_object_get (PDF_DOCUMENT (document)->document,
 529                       "title", &(info->title),
 530                       "format", &(info->format),
 531                       "author", &(info->author),
 532                       "subject", &(info->subject),
 533                       "keywords", &(info->keywords),
 534                       "page-mode", &mode,
 535                       "page-layout", &layout,
 536                       "viewer-preferences", &view_prefs,
 537                       "permissions", &permissions,
 538                       "creator", &(info->creator),
 539                       "producer", &(info->producer),
 540                       "creation-date", &(info->creation_date),
 541                       "mod-date", &(info->modified_date),
 542                       "linearized", &(info->linearized),
 543                       NULL);
 544
 545         switch (layout) {
 546                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 547                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 548                         break;
 549                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 550                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 551                         break;
 552                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 553                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 554                         break;
 555                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 556                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 557                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 558                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 559                         break;
 560                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 561                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 562                         break;
 563                 default:
 564                         break;
 565         }
 566
 567         switch (mode) {
 568                 case POPPLER_PAGE_MODE_NONE:
 569                         info->mode = EV_DOCUMENT_MODE_NONE;
 570                         break;
 571                 case POPPLER_PAGE_MODE_USE_THUMBS:
 572                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 573                         break;
 574                 case POPPLER_PAGE_MODE_USE_OC:
 575                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 576                         break;
 577                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 578                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 579                         break;
 580                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 581                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 582                 default:
 583                         break;
 584         }
 585
 586         info->ui_hints = 0;
 587         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 588                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 589         }
 590         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 591                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 592         }
 593         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 594                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 595         }
 596         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 597                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 598         }
 599         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 600                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 601         }
 602         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 603                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 604         }
 605         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 606                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 607         }
 608
 609         info->permissions = 0;
 610         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 611                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 612         }
 613         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 614                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 615         }
 616         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 617                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 618         }
 619         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 620                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 621         }
 622
 623         info->n_pages = ev_document_get_n_pages (document);
 624
 625         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 626                 /* translators: this is the document security state */
 627                 info->security = g_strdup (_("Yes"));
 628         } else {
 629                 /* translators: this is the document security state */
 630                 info->security = g_strdup (_("No"));
 631         }
 632
 633         return info;
 634 }
 635
 636 static char *
 637 pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect)
 638 {
 639         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 640         PopplerPage *poppler_page;
 641         PopplerRectangle r;
 642         double height;
 643         char *text;
 644
 645         poppler_page = poppler_document_get_page (pdf_document->document, page);
 646         g_return_val_if_fail (poppler_page != NULL, NULL);
 647
 648         poppler_page_get_size (poppler_page, NULL, &height);
 649         r.x1 = rect->x1;
 650         r.y1 = height - rect->y2;
 651         r.x2 = rect->x2;
 652         r.y2 = height - rect->y1;
 653
 654         text = poppler_page_get_text (poppler_page, &r);
 655
 656         g_object_unref (poppler_page);
 657
 658         return text;
 659 }
 660
 661 static void
 662 pdf_document_document_iface_init (EvDocumentIface *iface)
 663 {
 664         iface->save = pdf_document_save;
 665         iface->load = pdf_document_load;
 666         iface->get_n_pages = pdf_document_get_n_pages;
 667         iface->get_page_size = pdf_document_get_page_size;
 668         iface->get_page_label = pdf_document_get_page_label;
 669         iface->get_links = pdf_document_get_links;
 670         iface->has_attachments = pdf_document_has_attachments;
 671         iface->get_attachments = pdf_document_get_attachments;
 672         iface->render_pixbuf = pdf_document_render_pixbuf;
 673         iface->get_text = pdf_document_get_text;
 674         iface->can_get_text = pdf_document_can_get_text;
 675         iface->get_info = pdf_document_get_info;
 676 };
 677
 678 static void
 679 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 680 {
 681         iface->has_document_security = pdf_document_has_document_security;
 682         iface->set_password = pdf_document_set_password;
 683 }
 684
 685 static gdouble
 686 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 687 {
 688         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 689         int n_pages;
 690
 691         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 692
 693         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 694 }
 695
 696 static gboolean
 697 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 698                          int              n_pages)
 699 {
 700         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 701         gboolean result;
 702
 703         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 704
 705         if (pdf_document->font_info == NULL) {
 706                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 707         }
 708
 709         if (pdf_document->fonts_iter) {
 710                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 711         }
 712
 713         pdf_document->fonts_scanned_pages += n_pages;
 714
 715         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 716                                          &pdf_document->fonts_iter);
 717         if (!result) {
 718                 pdf_document->fonts_scanned_pages = 0;
 719                 poppler_font_info_free (pdf_document->font_info);
 720                 pdf_document->font_info = NULL;
 721         }
 722
 723         return result;
 724 }
 725
 726 static const char *
 727 font_type_to_string (PopplerFontType type)
 728 {
 729         switch (type)
 730         {
 731         case POPPLER_FONT_TYPE_TYPE1:
 732                 return _("Type 1");
 733         case POPPLER_FONT_TYPE_TYPE1C:
 734                 return _("Type 1C");
 735         case POPPLER_FONT_TYPE_TYPE3:
 736                 return _("Type 3");
 737         case POPPLER_FONT_TYPE_TRUETYPE:
 738                 return _("TrueType");
 739         case POPPLER_FONT_TYPE_CID_TYPE0:
 740                 return _("Type 1 (CID)");
 741         case POPPLER_FONT_TYPE_CID_TYPE0C:
 742                 return _("Type 1C (CID)");
 743         case POPPLER_FONT_TYPE_CID_TYPE2:
 744                 return _("TrueType (CID)");
 745         default:
 746                 return _("Unknown font type");
 747         }
 748 }
 749
 750 static void
 751 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 752                                GtkTreeModel    *model)
 753 {
 754         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 755         PopplerFontsIter *iter = pdf_document->fonts_iter;
 756
 757         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 758
 759         if (!iter)
 760                 return;
 761
 762         do {
 763                 GtkTreeIter list_iter;
 764                 const char *name;
 765                 const char *type;
 766                 const char *embedded;
 767                 char *details;
 768
 769                 name = poppler_fonts_iter_get_name (iter);
 770
 771                 if (name == NULL) {
 772                         name = _("No name");
 773                 }
 774
 775                 type = font_type_to_string (
 776                         poppler_fonts_iter_get_font_type (iter));
 777
 778                 if (poppler_fonts_iter_is_embedded (iter)) {
 779                         if (poppler_fonts_iter_is_subset (iter))
 780                                 embedded = _("Embedded subset");
 781                         else
 782                                 embedded = _("Embedded");
 783                 } else {
 784                         embedded = _("Not embedded");
 785                 }
 786
 787                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 788
 789                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 790                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 791                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 792                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 793                                     -1);
 794
 795                 g_free (details);
 796         } while (poppler_fonts_iter_next (iter));
 797 }
 798
 799 static void
 800 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 801 {
 802         iface->fill_model = pdf_document_fonts_fill_model;
 803         iface->scan = pdf_document_fonts_scan;
 804         iface->get_progress = pdf_document_fonts_get_progress;
 805 }
 806
 807 static gboolean
 808 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
 809 {
 810         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 811         PopplerIndexIter *iter;
 812
 813         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
 814
 815         iter = poppler_index_iter_new (pdf_document->document);
 816         if (iter == NULL)
 817                 return FALSE;
 818         poppler_index_iter_free (iter);
 819
 820         return TRUE;
 821 }
 822
 823 static EvLink *
 824 ev_link_from_dest (PopplerAction *action)
 825 {
 826         EvLink *link = NULL;
 827         const char *unimplemented_dest = NULL;
 828
 829         switch (action->goto_dest.dest->type) {
 830         case POPPLER_DEST_UNKNOWN:
 831                 unimplemented_dest = "POPPLER_DEST_UNKNOWN";
 832                 break;
 833         case POPPLER_DEST_XYZ:
 834                 link = ev_link_new_page_xyz (action->any.title,
 835                                              action->goto_dest.dest->page_num - 1,
 836                                              action->goto_dest.dest->left,
 837                                              action->goto_dest.dest->top,
 838                                              action->goto_dest.dest->zoom);
 839                 break;
 840         case POPPLER_DEST_FIT:
 841                 link = ev_link_new_page_fit (action->any.title,
 842                                              action->goto_dest.dest->page_num - 1);
 843                 break;
 844         case POPPLER_DEST_FITH:
 845                 link = ev_link_new_page_fith (action->any.title,
 846                                               action->goto_dest.dest->page_num - 1,
 847                                               action->goto_dest.dest->top);
 848                 break;
 849         case POPPLER_DEST_FITV:
 850                 link = ev_link_new_page_fitv (action->any.title,
 851                                               action->goto_dest.dest->page_num - 1,
 852                                               action->goto_dest.dest->left);
 853                 break;
 854         case POPPLER_DEST_FITR:
 855                 link = ev_link_new_page_fitr (action->any.title,
 856                                               action->goto_dest.dest->page_num - 1,
 857                                               action->goto_dest.dest->left,
 858                                               action->goto_dest.dest->bottom,
 859                                               action->goto_dest.dest->right,
 860                                               action->goto_dest.dest->top);
 861                 break;
 862         case POPPLER_DEST_FITB:
 863                 unimplemented_dest = "POPPLER_DEST_FITB";
 864                 break;
 865         case POPPLER_DEST_FITBH:
 866                 unimplemented_dest = "POPPLER_DEST_FITBH";
 867                 break;
 868         case POPPLER_DEST_FITBV:
 869                 unimplemented_dest = "POPPLER_DEST_FITBV";
 870                 break;
 871         }
 872
 873         if (unimplemented_dest) {
 874                 g_warning ("Unimplemented destination: %s, please post a bug report with a testcase.",
 875                            unimplemented_dest);
 876         }
 877
 878         if (link == NULL) {
 879                 link = ev_link_new_page (action->any.title, action->goto_dest.dest->page_num - 1);
 880         }
 881
 882         return link;
 883 }
 884
 885 static EvLink *
 886 ev_link_from_action (PopplerAction *action)
 887 {
 888         EvLink *link = NULL;
 889         const char *title;
 890         const char *unimplemented_action = NULL;
 891
 892         title = action->any.title;
 893
 894         switch (action->type) {
 895         case POPPLER_ACTION_UNKNOWN:
 896                 link = ev_link_new_title (title);
 897                 break;
 898         case POPPLER_ACTION_GOTO_DEST:
 899                 link = ev_link_from_dest (action);
 900                 break;
 901         case POPPLER_ACTION_GOTO_REMOTE:
 902                 unimplemented_action = "POPPLER_ACTION_GOTO_REMOTE";
 903                 break;
 904         case POPPLER_ACTION_LAUNCH:
 905                 link = ev_link_new_launch (title, action->launch.file_name,
 906                                            action->launch.params);
 907                 break;
 908         case POPPLER_ACTION_URI:
 909                 link = ev_link_new_external (title, action->uri.uri);
 910                 break;
 911         case POPPLER_ACTION_NAMED:
 912                 unimplemented_action = "POPPLER_ACTION_NAMED";
 913                 break;
 914         case POPPLER_ACTION_MOVIE:
 915                 unimplemented_action = "POPPLER_ACTION_MOVIE";
 916                 break;
 917         }
 918
 919         if (unimplemented_action) {
 920                 g_warning ("Unimplemented action: %s, please post a bug report with a testcase.",
 921                            unimplemented_action);
 922         }
 923
 924         if (link == NULL) {
 925                 link = ev_link_new_title (title);
 926         }
 927
 928         return link;
 929 }
 930
 931 static void
 932 build_tree (PdfDocument      *pdf_document,
 933             GtkTreeModel     *model,
 934             GtkTreeIter      *parent,
 935             PopplerIndexIter *iter)
 936 {
 937
 938         do {
 939                 GtkTreeIter tree_iter;
 940                 PopplerIndexIter *child;
 941                 PopplerAction *action;
 942                 EvLink *link;
 943                 gboolean expand;
 944
 945                 action = poppler_index_iter_get_action (iter);
 946                 expand = poppler_index_iter_is_open (iter);
 947                 if (action) {
 948                         char *title_markup;
 949
 950                         gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
 951                         link = ev_link_from_action (action);
 952                         poppler_action_free (action);
 953                         title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
 954
 955                         gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
 956                                             EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
 957                                             EV_DOCUMENT_LINKS_COLUMN_LINK, link,
 958                                             EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
 959                                             -1);
 960
 961                         g_free (title_markup);
 962                         g_object_unref (link);
 963
 964                         child = poppler_index_iter_get_child (iter);
 965                         if (child)
 966                                 build_tree (pdf_document, model, &tree_iter, child);
 967                         poppler_index_iter_free (child);
 968                 }
 969         } while (poppler_index_iter_next (iter));
 970 }
 971
 972
 973 static GtkTreeModel *
 974 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
 975 {
 976         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 977         GtkTreeModel *model = NULL;
 978         PopplerIndexIter *iter;
 979
 980         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
 981
 982         iter = poppler_index_iter_new (pdf_document->document);
 983         /* Create the model if we have items*/
 984         if (iter != NULL) {
 985                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
 986                                                              G_TYPE_STRING,
 987                                                              G_TYPE_OBJECT,
 988                                                              G_TYPE_BOOLEAN);
 989                 build_tree (pdf_document, model, NULL, iter);
 990                 poppler_index_iter_free (iter);
 991         }
 992
 993         return model;
 994 }
 995
 996 static void
 997 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
 998 {
 999         iface->has_document_links = pdf_document_links_has_document_links;
1000         iface->get_links_model = pdf_document_links_get_links_model;
1001 }
1002
1003 static GdkPixbuf *
1004 make_thumbnail_for_size (PdfDocument   *pdf_document,
1005                          gint           page,
1006                          int            rotation,
1007                          gint           size)
1008 {
1009         PopplerPage *poppler_page;
1010         GdkPixbuf *pixbuf;
1011         int width, height;
1012         double scale;
1013         gdouble unscaled_width, unscaled_height;
1014
1015         poppler_page = poppler_document_get_page (pdf_document->document, page);
1016         g_return_val_if_fail (poppler_page != NULL, NULL);
1017
1018         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page,
1019                                                 size, &width, &height);
1020         poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
1021         scale = width / unscaled_width;
1022
1023         /* rotate */
1024         if (rotation == 90 || rotation == 270) {
1025                 int temp;
1026                 temp = width;
1027                 width = height;
1028                 height = temp;
1029         }
1030
1031         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1032                                  width, height);
1033         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1034
1035         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1036                                        width, height,
1037                                        scale, rotation, pixbuf);
1038
1039
1040         g_object_unref (poppler_page);
1041
1042         return pixbuf;
1043 }
1044
1045 static GdkPixbuf *
1046 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1047                                        gint                  page,
1048                                        gint                  rotation,
1049                                        gint                  size,
1050                                        gboolean              border)
1051 {
1052         PdfDocument *pdf_document;
1053         PopplerPage *poppler_page;
1054         GdkPixbuf *pixbuf;
1055         GdkPixbuf *border_pixbuf;
1056
1057         pdf_document = PDF_DOCUMENT (document_thumbnails);
1058
1059         poppler_page = poppler_document_get_page (pdf_document->document, page);
1060         g_return_val_if_fail (poppler_page != NULL, NULL);
1061
1062         pixbuf = poppler_page_get_thumbnail (poppler_page);
1063
1064         if (pixbuf == NULL) {
1065                 /* There is no provided thumbnail.  We need to make one. */
1066                 pixbuf = make_thumbnail_for_size (pdf_document, page, rotation, size);
1067         }
1068
1069         if (border) {
1070                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, rotation, pixbuf);
1071                 g_object_unref (pixbuf);
1072                 pixbuf = border_pixbuf;
1073         }
1074
1075         g_object_unref (poppler_page);
1076
1077         return pixbuf;
1078 }
1079
1080 static void
1081 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1082                                         gint                  page,
1083                                         gint                  size,
1084                                         gint                 *width,
1085                                         gint                 *height)
1086 {
1087         PdfDocument *pdf_document;
1088         PopplerPage *poppler_page;
1089         gint has_thumb;
1090
1091         pdf_document = PDF_DOCUMENT (document_thumbnails);
1092         poppler_page = poppler_document_get_page (pdf_document->document, page);
1093
1094         g_return_if_fail (width != NULL);
1095         g_return_if_fail (height != NULL);
1096         g_return_if_fail (poppler_page != NULL);
1097
1098         has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
1099
1100         if (!has_thumb) {
1101                 double page_width, page_height;
1102
1103                 poppler_page_get_size (poppler_page, &page_width, &page_height);
1104                 *width = size;
1105                 *height = (int) (size * page_height / page_width);
1106         }
1107         g_object_unref (poppler_page);
1108 }
1109
1110 static void
1111 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1112 {
1113         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1114         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1115 }
1116
1117
1118 static gboolean
1119 pdf_document_search_idle_callback (void *data)
1120 {
1121         PdfDocumentSearch *search = (PdfDocumentSearch*) data;
1122         PdfDocument *pdf_document = search->document;
1123         int n_pages;
1124         GList *matches;
1125         PopplerPage *page;
1126
1127         page = poppler_document_get_page (search->document->document,
1128                                           search->search_page);
1129
1130         ev_document_doc_mutex_lock ();
1131         matches = poppler_page_find_text (page, search->text);
1132         ev_document_doc_mutex_unlock ();
1133
1134         g_object_unref (page);
1135
1136         search->pages[search->search_page] = matches;
1137         ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document),
1138                                   search->search_page);
1139
1140         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document));
1141         search->search_page += 1;
1142         if (search->search_page == n_pages) {
1143                 /* wrap around */
1144                 search->search_page = 0;
1145         }
1146
1147         if (search->search_page != search->start_page) {
1148                 return TRUE;
1149         }
1150
1151         /* We're done. */
1152         search->idle = 0; /* will return FALSE to remove */
1153         return FALSE;
1154 }
1155
1156
1157 static PdfDocumentSearch *
1158 pdf_document_search_new (PdfDocument *pdf_document,
1159                          int          start_page,
1160                          const char  *text)
1161 {
1162         PdfDocumentSearch *search;
1163         int n_pages;
1164         int i;
1165
1166         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
1167
1168         search = g_new0 (PdfDocumentSearch, 1);
1169
1170         search->text = g_strdup (text);
1171         search->pages = g_new0 (GList *, n_pages);
1172         for (i = 0; i < n_pages; i++) {
1173                 search->pages[i] = NULL;
1174         }
1175
1176         search->document = pdf_document;
1177
1178         /* We add at low priority so the progress bar repaints */
1179         search->idle = g_idle_add_full (G_PRIORITY_LOW,
1180                                         pdf_document_search_idle_callback,
1181                                         search,
1182                                         NULL);
1183
1184         search->start_page = start_page;
1185         search->search_page = start_page;
1186
1187         return search;
1188 }
1189
1190 static void
1191 pdf_document_find_begin (EvDocumentFind   *document,
1192                          int               page,
1193                          const char       *search_string,
1194                          gboolean          case_sensitive)
1195 {
1196         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1197
1198         /* FIXME handle case_sensitive (right now XPDF
1199          * code is always case insensitive for ASCII
1200          * and case sensitive for all other languaages)
1201          */
1202
1203         if (pdf_document->search &&
1204             strcmp (search_string, pdf_document->search->text) == 0)
1205                 return;
1206
1207         if (pdf_document->search)
1208                 pdf_document_search_free (pdf_document->search);
1209
1210         pdf_document->search = pdf_document_search_new (pdf_document,
1211                                                         page,
1212                                                         search_string);
1213 }
1214
1215 int
1216 pdf_document_find_get_n_results (EvDocumentFind *document_find, int page)
1217 {
1218         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1219
1220         if (search) {
1221                 return g_list_length (search->pages[page]);
1222         } else {
1223                 return 0;
1224         }
1225 }
1226
1227 gboolean
1228 pdf_document_find_get_result (EvDocumentFind *document_find,
1229                               int             page,
1230                               int             n_result,
1231                               EvRectangle    *rectangle)
1232 {
1233         PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
1234         PdfDocumentSearch *search = pdf_document->search;
1235         PopplerPage *poppler_page;
1236         PopplerRectangle *r;
1237         double height;
1238
1239         if (search == NULL)
1240                 return FALSE;
1241
1242         r = (PopplerRectangle *) g_list_nth_data (search->pages[page],
1243                                                   n_result);
1244         if (r == NULL)
1245                 return FALSE;
1246
1247         poppler_page = poppler_document_get_page (pdf_document->document, page);
1248         poppler_page_get_size (poppler_page, NULL, &height);
1249         rectangle->x1 = r->x1;
1250         rectangle->y1 = height - r->y2;
1251         rectangle->x2 = r->x2;
1252         rectangle->y2 = height - r->y1;
1253         g_object_unref (poppler_page);
1254
1255         return TRUE;
1256 }
1257
1258 int
1259 pdf_document_find_page_has_results (EvDocumentFind *document_find,
1260                                     int             page)
1261 {
1262         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1263
1264         return search && search->pages[page] != NULL;
1265 }
1266
1267 double
1268 pdf_document_find_get_progress (EvDocumentFind *document_find)
1269 {
1270         PdfDocumentSearch *search;
1271         int n_pages, pages_done;
1272
1273         search = PDF_DOCUMENT (document_find)->search;
1274
1275         if (search == NULL) {
1276                 return 0;
1277         }
1278
1279         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find));
1280         if (search->search_page > search->start_page) {
1281                 pages_done = search->search_page - search->start_page + 1;
1282         } else if (search->search_page == search->start_page) {
1283                 pages_done = n_pages;
1284         } else {
1285                 pages_done = n_pages - search->start_page + search->search_page;
1286         }
1287
1288         return pages_done / (double) n_pages;
1289 }
1290
1291 static void
1292 pdf_document_find_cancel (EvDocumentFind *document)
1293 {
1294         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1295
1296         if (pdf_document->search) {
1297                 pdf_document_search_free (pdf_document->search);
1298                 pdf_document->search = NULL;
1299         }
1300 }
1301
1302 static void
1303 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1304 {
1305         iface->begin = pdf_document_find_begin;
1306         iface->get_n_results = pdf_document_find_get_n_results;
1307         iface->get_result = pdf_document_find_get_result;
1308         iface->page_has_results = pdf_document_find_page_has_results;
1309         iface->get_progress = pdf_document_find_get_progress;
1310         iface->cancel = pdf_document_find_cancel;
1311 }
1312
1313 static void
1314 pdf_document_ps_exporter_begin (EvPSExporter *exporter, const char *filename,
1315                                 int first_page, int last_page,
1316                                 double width, double height, gboolean duplex)
1317 {
1318         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1319
1320         pdf_document->ps_file = poppler_ps_file_new (pdf_document->document, filename,
1321                                                      first_page,
1322                                                      last_page - first_page + 1);
1323         poppler_ps_file_set_paper_size (pdf_document->ps_file, width, height);
1324         poppler_ps_file_set_duplex (pdf_document->ps_file, duplex);
1325 }
1326
1327 static void
1328 pdf_document_ps_exporter_do_page (EvPSExporter *exporter, EvRenderContext *rc)
1329 {
1330         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1331         PopplerPage *poppler_page;
1332
1333         g_return_if_fail (pdf_document->ps_file != NULL);
1334
1335         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1336         poppler_page_render_to_ps (poppler_page, pdf_document->ps_file);
1337         g_object_unref (poppler_page);
1338 }
1339
1340 static void
1341 pdf_document_ps_exporter_end (EvPSExporter *exporter)
1342 {
1343         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1344
1345         poppler_ps_file_free (pdf_document->ps_file);
1346         pdf_document->ps_file = NULL;
1347 }
1348
1349 static void
1350 pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface)
1351 {
1352         iface->begin = pdf_document_ps_exporter_begin;
1353         iface->do_page = pdf_document_ps_exporter_do_page;
1354         iface->end = pdf_document_ps_exporter_end;
1355 }
1356
1357
1358 void
1359 pdf_selection_render_selection (EvSelection      *selection,
1360                                 EvRenderContext  *rc,
1361                                 GdkPixbuf       **pixbuf,
1362                                 EvRectangle      *points,
1363                                 EvRectangle      *old_points,
1364                                 GdkColor        *text,
1365                                 GdkColor        *base)
1366 {
1367         PdfDocument *pdf_document;
1368         double width_points, height_points;
1369         gint width, height;
1370
1371         pdf_document = PDF_DOCUMENT (selection);
1372         set_rc_data (pdf_document, rc);
1373
1374         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
1375         width = (int) ((width_points * rc->scale) + 0.5);
1376         height = (int) ((height_points * rc->scale) + 0.5);
1377
1378         if (*pixbuf == NULL) {
1379                 * pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1380                                            TRUE, 8,
1381                                            width, height);
1382         }
1383
1384         poppler_page_render_selection (POPPLER_PAGE (rc->data),
1385                                        rc->scale, rc->rotation, *pixbuf,
1386                                        (PopplerRectangle *)points,
1387                                        (PopplerRectangle *)old_points,
1388                                        text,
1389                                        base);
1390 }
1391
1392
1393 GdkRegion *
1394 pdf_selection_get_selection_region (EvSelection     *selection,
1395                                     EvRenderContext *rc,
1396                                     EvRectangle     *points)
1397 {
1398         PdfDocument *pdf_document;
1399         GdkRegion *retval;
1400
1401         pdf_document = PDF_DOCUMENT (selection);
1402
1403         set_rc_data (pdf_document, rc);
1404
1405         retval = poppler_page_get_selection_region ((PopplerPage *)rc->data, rc->scale, (PopplerRectangle *) points);
1406
1407         return retval;
1408 }
1409
1410 GdkRegion *
1411 pdf_selection_get_selection_map (EvSelection     *selection,
1412                                  EvRenderContext *rc)
1413 {
1414         PdfDocument *pdf_document;
1415         PopplerPage *poppler_page;
1416         PopplerRectangle points;
1417         GdkRegion *retval;
1418
1419         pdf_document = PDF_DOCUMENT (selection);
1420         poppler_page = poppler_document_get_page (pdf_document->document,
1421                                                   rc->page);
1422
1423         points.x1 = 0.0;
1424         points.y1 = 0.0;
1425         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
1426         retval = poppler_page_get_selection_region (poppler_page, 1.0, &points);
1427         g_object_unref (poppler_page);
1428
1429         return retval;
1430 }
1431
1432 static void
1433 pdf_selection_iface_init (EvSelectionIface *iface)
1434 {
1435         iface->render_selection = pdf_selection_render_selection;
1436         iface->get_selection_region = pdf_selection_get_selection_region;
1437         iface->get_selection_map = pdf_selection_get_selection_map;
1438 }
1439
1440 PdfDocument *
1441 pdf_document_new (void)
1442 {
1443         return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
1444 }