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
  27 #include "ev-poppler.h"
  28 #include "ev-ps-exporter.h"
  29 #include "ev-document-find.h"
  30 #include "ev-document-misc.h"
  31 #include "ev-document-links.h"
  32 #include "ev-document-security.h"
  33 #include "ev-document-thumbnails.h"
  34
  35
  36 enum {
  37         PROP_0,
  38         PROP_TITLE
  39 };
  40
  41
  42 typedef struct {
  43         PdfDocument *document;
  44         char *text;
  45         GList **pages;
  46         guint idle;
  47         int start_page;
  48         int search_page;
  49 } PdfDocumentSearch;
  50
  51 struct _PdfDocumentClass
  52 {
  53         GObjectClass parent_class;
  54 };
  55
  56 struct _PdfDocument
  57 {
  58         GObject parent_instance;
  59
  60         PopplerDocument *document;
  61         PopplerPage *page;
  62         double scale;
  63         gchar *password;
  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_find_iface_init                (EvDocumentFindIface       *iface);
  73 static void pdf_document_thumbnails_get_dimensions      (EvDocumentThumbnails      *document_thumbnails,
  74                                                          gint                       page,
  75                                                          gint                       size,
  76                                                          gint                      *width,
  77                                                          gint                      *height);
  78 static EvLink * ev_link_from_action (PopplerAction *action);
  79
  80
  81 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
  82                          {
  83                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
  84                                                         pdf_document_document_iface_init);
  85                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
  86                                                         pdf_document_security_iface_init);
  87                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
  88                                                         pdf_document_document_thumbnails_iface_init);
  89                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
  90                                                         pdf_document_document_links_iface_init);
  91                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
  92                                                         pdf_document_find_iface_init);
  93 #if 0
  94                                  G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER,
  95                                                         pdf_document_ps_exporter_iface_init);
  96 #endif
  97                          });
  98
  99
 100
 101
 102
 103
 104 static void
 105 pdf_document_get_property (GObject *object,
 106                            guint prop_id,
 107                            GValue *value,
 108                            GParamSpec *pspec)
 109 {
 110         PdfDocument *pdf_document = PDF_DOCUMENT (object);
 111
 112         switch (prop_id)
 113         {
 114                 case PROP_TITLE:
 115                         if (pdf_document->document == NULL)
 116                                 g_value_set_string (value, NULL);
 117                         else
 118                                 g_object_get_property (G_OBJECT (pdf_document->document), "title", value);
 119                         break;
 120         }
 121 }
 122
 123 static void
 124 pdf_document_class_init (PdfDocumentClass *klass)
 125 {
 126         GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 127
 128         gobject_class->get_property = pdf_document_get_property;
 129
 130         g_object_class_override_property (gobject_class, PROP_TITLE, "title");
 131 }
 132
 133 static void
 134 pdf_document_init (PdfDocument *pdf_document)
 135 {
 136         pdf_document->page = NULL;
 137         pdf_document->scale = 1.0;
 138         pdf_document->password = NULL;
 139 }
 140
 141 static void
 142 convert_error (GError  *poppler_error,
 143                GError **error)
 144 {
 145         if (poppler_error == NULL)
 146                 return;
 147
 148         if (poppler_error->domain == POPPLER_ERROR) {
 149                 /* convert poppler errors into EvDocument errors */
 150                 gint code = EV_DOCUMENT_ERROR_INVALID;
 151                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 152                         code = EV_DOCUMENT_ERROR_INVALID;
 153                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 154                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 155
 156
 157                 g_set_error (error,
 158                              EV_DOCUMENT_ERROR,
 159                              code,
 160                              poppler_error->message,
 161                              NULL);
 162         } else {
 163                 g_propagate_error (error, poppler_error);
 164         }
 165 }
 166
 167
 168 /* EvDocument */
 169 static gboolean
 170 pdf_document_save (EvDocument  *document,
 171                    const char  *uri,
 172                    GError     **error)
 173 {
 174         gboolean retval;
 175         GError *poppler_error = NULL;
 176
 177         retval = poppler_document_save (PDF_DOCUMENT (document)->document,
 178                                         uri,
 179                                         &poppler_error);
 180         if (! retval)
 181                 convert_error (poppler_error, error);
 182
 183         return retval;
 184 }
 185
 186 static gboolean
 187 pdf_document_load (EvDocument   *document,
 188                    const char   *uri,
 189                    GError      **error)
 190 {
 191         GError *poppler_error = NULL;
 192         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 193
 194         pdf_document->document =
 195                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 196
 197         if (pdf_document->document == NULL) {
 198                 convert_error (poppler_error, error);
 199                 return FALSE;
 200         }
 201
 202         return TRUE;
 203 }
 204
 205 static int
 206 pdf_document_get_n_pages (EvDocument *document)
 207 {
 208         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 209 }
 210
 211 static void
 212 pdf_document_set_page (EvDocument   *document,
 213                        int           page)
 214 {
 215         page = CLAMP (page, 0, poppler_document_get_n_pages (PDF_DOCUMENT (document)->document) - 1);
 216
 217         PDF_DOCUMENT (document)->page = poppler_document_get_page (PDF_DOCUMENT (document)->document, page);
 218 }
 219
 220 static int
 221 pdf_document_get_page (EvDocument   *document)
 222 {
 223         PdfDocument *pdf_document;
 224
 225         pdf_document = PDF_DOCUMENT (document);
 226
 227         if (pdf_document->page)
 228                 return poppler_page_get_index (pdf_document->page);
 229
 230         return 1;
 231 }
 232
 233 static void
 234 pdf_document_set_scale (EvDocument   *document,
 235                         double        scale)
 236 {
 237         PDF_DOCUMENT (document)->scale = scale;
 238 }
 239
 240
 241 static void
 242 get_size_from_page (PopplerPage *poppler_page,
 243                     double       scale,
 244                     int         *width,
 245                     int         *height)
 246 {
 247         gdouble width_d, height_d;
 248         poppler_page_get_size (poppler_page, &width_d, &height_d);
 249         if (width)
 250                 *width = (int) (width_d * scale);
 251         if (height)
 252                 *height = (int) (height_d * scale);
 253
 254 }
 255
 256 static void
 257 pdf_document_get_page_size (EvDocument   *document,
 258                             int           page,
 259                             int          *width,
 260                             int          *height)
 261 {
 262         PopplerPage *poppler_page = NULL;
 263
 264         if (page == -1)
 265                 poppler_page = PDF_DOCUMENT (document)->page;
 266         else
 267                 poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
 268                                                           page);
 269
 270         if (poppler_page == NULL)
 271                 poppler_document_get_page (PDF_DOCUMENT (document)->document, 0);
 272
 273         get_size_from_page (poppler_page,
 274                             PDF_DOCUMENT (document)->scale,
 275                             width, height);
 276 }
 277
 278 static char *
 279 pdf_document_get_page_label (EvDocument *document,
 280                              int         page)
 281 {
 282         PopplerPage *poppler_page = NULL;
 283         char *label = NULL;
 284
 285         if (page == -1)
 286                 poppler_page = PDF_DOCUMENT (document)->page;
 287         else
 288                 poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
 289                                                           page);
 290
 291         g_object_get (poppler_page,
 292                       "label", &label,
 293                       NULL);
 294
 295         return label;
 296 }
 297
 298 static GList *
 299 pdf_document_get_links (EvDocument *document)
 300 {
 301         PdfDocument *pdf_document;
 302         GList *retval = NULL;
 303         GList *mapping_list;
 304         GList *list;
 305         gint height;
 306
 307         pdf_document = PDF_DOCUMENT (document);
 308         g_return_val_if_fail (pdf_document->page != NULL, NULL);
 309
 310         mapping_list = poppler_page_get_link_mapping (pdf_document->page);
 311         get_size_from_page (pdf_document->page, 1.0, NULL, &height);
 312
 313         for (list = mapping_list; list; list = list->next) {
 314                 PopplerLinkMapping *link_mapping;
 315                 EvLinkMapping *ev_link_mapping;
 316
 317                 link_mapping = (PopplerLinkMapping *)list->data;
 318                 ev_link_mapping = g_new (EvLinkMapping, 1);
 319                 ev_link_mapping->link = ev_link_from_action (link_mapping->action);
 320                 ev_link_mapping->x1 = link_mapping->area.x1;
 321                 ev_link_mapping->x2 = link_mapping->area.x2;
 322                 /* Invert this for X-style coordinates */
 323                 ev_link_mapping->y1 = height - link_mapping->area.y2;
 324                 ev_link_mapping->y2 = height - link_mapping->area.y1;
 325
 326                 retval = g_list_prepend (retval, ev_link_mapping);
 327         }
 328
 329         poppler_page_free_link_mapping (mapping_list);
 330
 331         return g_list_reverse (retval);
 332 }
 333
 334
 335 static GdkPixbuf *
 336 pdf_document_render_pixbuf (EvDocument   *document)
 337 {
 338         PdfDocument *pdf_document;
 339         GdkPixbuf *pixbuf;
 340         gint width, height;
 341
 342         pdf_document = PDF_DOCUMENT (document);
 343         g_return_val_if_fail (pdf_document->page != NULL, NULL);
 344
 345         get_size_from_page (pdf_document->page,
 346                             pdf_document->scale,
 347                             &width, &height);
 348
 349         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 350                                  FALSE, 8,
 351                                  width, height);
 352
 353         poppler_page_render_to_pixbuf (pdf_document->page,
 354                                        0, 0,
 355                                        width, height,
 356                                        pdf_document->scale,
 357                                        pixbuf,
 358                                        0, 0);
 359
 360         return pixbuf;
 361 }
 362
 363 /* EvDocumentSecurity */
 364
 365 static gboolean
 366 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 367 {
 368         /* FIXME: do we really need to have this? */
 369         return FALSE;
 370 }
 371
 372 static void
 373 pdf_document_set_password (EvDocumentSecurity *document_security,
 374                            const char         *password)
 375 {
 376         PdfDocument *document = PDF_DOCUMENT (document_security);
 377
 378         if (document->password)
 379                 g_free (document->password);
 380
 381         document->password = g_strdup (password);
 382 }
 383
 384
 385
 386 static void
 387 pdf_document_document_iface_init (EvDocumentIface *iface)
 388 {
 389         iface->save = pdf_document_save;
 390         iface->load = pdf_document_load;
 391         iface->get_n_pages = pdf_document_get_n_pages;
 392         iface->set_page = pdf_document_set_page;
 393         iface->get_page = pdf_document_get_page;
 394         iface->set_scale = pdf_document_set_scale;
 395         iface->get_page_size = pdf_document_get_page_size;
 396         iface->get_page_label = pdf_document_get_page_label;
 397         iface->get_links = pdf_document_get_links;
 398         iface->render_pixbuf = pdf_document_render_pixbuf;
 399 };
 400
 401 static void
 402 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 403 {
 404         iface->has_document_security = pdf_document_has_document_security;
 405         iface->set_password = pdf_document_set_password;
 406 }
 407
 408 static gboolean
 409 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
 410 {
 411         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 412         PopplerIndexIter *iter;
 413
 414         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
 415
 416         iter = poppler_index_iter_new (pdf_document->document);
 417         if (iter == NULL)
 418                 return FALSE;
 419         poppler_index_iter_free (iter);
 420
 421         return TRUE;
 422 }
 423
 424 static EvLink *
 425 ev_link_from_action (PopplerAction *action)
 426 {
 427         EvLink *link;
 428         const char *title;
 429
 430         title = action->any.title;
 431
 432         if (action->type == POPPLER_ACTION_GOTO_DEST) {
 433                 link = ev_link_new_page (title, action->goto_dest.dest->page_num - 1);
 434         } else if (action->type == POPPLER_ACTION_URI) {
 435                 link = ev_link_new_external (title, action->uri.uri);
 436         } else {
 437                 link = ev_link_new_title (title);
 438         }
 439
 440         return link;
 441 }
 442
 443
 444 static void
 445 build_tree (PdfDocument      *pdf_document,
 446             GtkTreeModel     *model,
 447             GtkTreeIter      *parent,
 448             PopplerIndexIter *iter)
 449 {
 450
 451         do {
 452                 GtkTreeIter tree_iter;
 453                 PopplerIndexIter *child;
 454                 PopplerAction *action;
 455                 EvLink *link;
 456
 457                 action = poppler_index_iter_get_action (iter);
 458                 if (action) {
 459                         gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
 460                         link = ev_link_from_action (action);
 461                         poppler_action_free (action);
 462
 463                         gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
 464                                             EV_DOCUMENT_LINKS_COLUMN_MARKUP, ev_link_get_title (link),
 465                                             EV_DOCUMENT_LINKS_COLUMN_LINK, link,
 466                                             -1);
 467                         child = poppler_index_iter_get_child (iter);
 468                         if (child)
 469                                 build_tree (pdf_document, model, &tree_iter, child);
 470                         poppler_index_iter_free (child);
 471                 }
 472         } while (poppler_index_iter_next (iter));
 473 }
 474
 475
 476 static GtkTreeModel *
 477 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
 478 {
 479         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 480         GtkTreeModel *model = NULL;
 481         PopplerIndexIter *iter;
 482
 483         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
 484
 485         iter = poppler_index_iter_new (pdf_document->document);
 486         /* Create the model iff we have items*/
 487         if (iter != NULL) {
 488                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
 489                                                              G_TYPE_STRING,
 490                                                              G_TYPE_POINTER);
 491                 build_tree (pdf_document, model, NULL, iter);
 492                 poppler_index_iter_free (iter);
 493         }
 494
 495
 496         return model;
 497 }
 498
 499
 500 static void
 501 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
 502 {
 503         iface->has_document_links = pdf_document_links_has_document_links;
 504         iface->get_links_model = pdf_document_links_get_links_model;
 505 }
 506
 507
 508 static GdkPixbuf *
 509 make_thumbnail_for_size (PdfDocument *pdf_document,
 510                          gint         page,
 511                          gint         size,
 512                          gboolean     border)
 513 {
 514         PopplerPage *poppler_page;
 515         GdkPixbuf *pixbuf;
 516         int width, height;
 517         int x_offset, y_offset;
 518         double scale;
 519         gdouble unscaled_width, unscaled_height;
 520
 521         poppler_page = poppler_document_get_page (pdf_document->document, page);
 522
 523         g_return_val_if_fail (poppler_page != NULL, NULL);
 524
 525         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page, size, &width, &height);
 526         poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
 527         scale = width / unscaled_width;
 528
 529         if (border) {
 530                 pixbuf = ev_document_misc_get_thumbnail_frame (width, height, NULL);
 531                 x_offset = 1;
 532                 y_offset = 1;
 533         } else {
 534                 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
 535                                          width, height);
 536                 gdk_pixbuf_fill (pixbuf, 0xffffffff);
 537                 x_offset = 0;
 538                 y_offset = 0;
 539         }
 540
 541         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
 542                                        width, height,
 543                                        scale, pixbuf,
 544                                        x_offset, y_offset);
 545
 546         return pixbuf;
 547 }
 548
 549 static GdkPixbuf *
 550 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
 551                                        gint                  page,
 552                                        gint                  size,
 553                                        gboolean              border)
 554 {
 555         PdfDocument *pdf_document;
 556         PopplerPage *poppler_page;
 557         GdkPixbuf *pixbuf;
 558
 559         pdf_document = PDF_DOCUMENT (document_thumbnails);
 560
 561         poppler_page = poppler_document_get_page (pdf_document->document, page);
 562         g_return_val_if_fail (poppler_page != NULL, NULL);
 563
 564         pixbuf = poppler_page_get_thumbnail (poppler_page);
 565         if (pixbuf != NULL) {
 566                 /* The document provides its own thumbnails. */
 567                 if (border) {
 568                         GdkPixbuf *real_pixbuf;
 569
 570                         real_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
 571                         g_object_unref (pixbuf);
 572                         pixbuf = real_pixbuf;
 573                 }
 574         } else {
 575                 /* There is no provided thumbnail.  We need to make one. */
 576                 pixbuf = make_thumbnail_for_size (pdf_document, page, size, border);
 577         }
 578         return pixbuf;
 579 }
 580
 581 static void
 582 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
 583                                         gint                  page,
 584                                         gint                  size,
 585                                         gint                 *width,
 586                                         gint                 *height)
 587 {
 588         PdfDocument *pdf_document;
 589         PopplerPage *poppler_page;
 590         gint has_thumb;
 591
 592         pdf_document = PDF_DOCUMENT (document_thumbnails);
 593         poppler_page = poppler_document_get_page (pdf_document->document, page);
 594
 595         g_return_if_fail (width != NULL);
 596         g_return_if_fail (height != NULL);
 597         g_return_if_fail (poppler_page != NULL);
 598
 599         has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
 600
 601         if (!has_thumb) {
 602                 int page_width, page_height;
 603
 604                 get_size_from_page (poppler_page, 1.0, &page_width, &page_height);
 605
 606                 if (page_width > page_height) {
 607                         *width = size;
 608                         *height = (int) (size * page_height / page_width);
 609                 } else {
 610                         *width = (int) (size * page_width / page_height);
 611                         *height = size;
 612                 }
 613         }
 614 }
 615
 616 static void
 617 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
 618 {
 619         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
 620         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
 621 }
 622
 623
 624 static gboolean
 625 pdf_document_search_idle_callback (void *data)
 626 {
 627         PdfDocumentSearch *search = (PdfDocumentSearch*) data;
 628         PdfDocument *pdf_document = search->document;
 629         int n_pages, changed_page;
 630         GList *matches;
 631         PopplerPage *page;
 632
 633         page = poppler_document_get_page (search->document->document,
 634                                           search->search_page);
 635
 636         g_mutex_lock (EV_DOC_MUTEX);
 637         matches = poppler_page_find_text (page, search->text);
 638         g_mutex_unlock (EV_DOC_MUTEX);
 639
 640         search->pages[search->search_page] = matches;
 641         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document));
 642
 643         changed_page = search->start_page;
 644
 645         search->search_page += 1;
 646         if (search->search_page == n_pages) {
 647                 /* wrap around */
 648                 search->search_page = 0;
 649         }
 650
 651         if (search->search_page != search->start_page) {
 652                 ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document),
 653                                           changed_page);
 654                 return TRUE;
 655         }
 656
 657         /* We're done. */
 658         search->idle = 0; /* will return FALSE to remove */
 659         return FALSE;
 660 }
 661
 662
 663 static PdfDocumentSearch *
 664 pdf_document_search_new (PdfDocument *pdf_document, const char *text)
 665 {
 666         PdfDocumentSearch *search;
 667         int n_pages;
 668         int i;
 669
 670         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 671
 672         search = g_new0 (PdfDocumentSearch, 1);
 673
 674         search->text = g_strdup (text);
 675         search->pages = g_new0 (GList *, n_pages);
 676         for (i = 0; i < n_pages; i++) {
 677                 search->pages[i] = NULL;
 678         }
 679
 680         search->document = pdf_document;
 681
 682         /* We add at low priority so the progress bar repaints */
 683         search->idle = g_idle_add_full (G_PRIORITY_LOW,
 684                                         pdf_document_search_idle_callback,
 685                                         search,
 686                                         NULL);
 687
 688         search->start_page = pdf_document_get_page (EV_DOCUMENT (pdf_document));
 689         search->search_page = search->start_page;
 690
 691         return search;
 692 }
 693
 694 static void
 695 pdf_document_search_free (PdfDocumentSearch   *search)
 696 {
 697         PdfDocument *pdf_document = search->document;
 698         int n_pages;
 699         int i;
 700
 701         if (search->idle != 0)
 702                 g_source_remove (search->idle);
 703
 704         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 705         for (i = 0; i < n_pages; i++) {
 706                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 707                 g_list_free (search->pages[i]);
 708         }
 709
 710         g_free (search->text);
 711 }
 712
 713 static void
 714 pdf_document_find_begin (EvDocumentFind   *document,
 715                          const char       *search_string,
 716                          gboolean          case_sensitive)
 717 {
 718         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 719
 720         /* FIXME handle case_sensitive (right now XPDF
 721          * code is always case insensitive for ASCII
 722          * and case sensitive for all other languaages)
 723          */
 724
 725         if (pdf_document->search &&
 726             strcmp (search_string, pdf_document->search->text) == 0)
 727                 return;
 728
 729         if (pdf_document->search)
 730                 pdf_document_search_free (pdf_document->search);
 731
 732         pdf_document->search = pdf_document_search_new (pdf_document,
 733                                                         search_string);
 734 }
 735
 736 int
 737 pdf_document_find_get_n_results (EvDocumentFind *document_find)
 738 {
 739         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
 740         int current_page;
 741
 742         current_page = pdf_document_get_page (EV_DOCUMENT (document_find));
 743
 744         if (search) {
 745                 return g_list_length (search->pages[current_page]);
 746         } else {
 747                 return 0;
 748         }
 749 }
 750
 751 gboolean
 752 pdf_document_find_get_result (EvDocumentFind *document_find,
 753                               int             n_result,
 754                               GdkRectangle   *rectangle)
 755 {
 756         PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
 757         PdfDocumentSearch *search = pdf_document->search;
 758         PopplerRectangle *r;
 759         int current_page;
 760         double scale;
 761
 762         if (search == NULL)
 763                 return FALSE;
 764
 765         current_page = pdf_document_get_page (EV_DOCUMENT (pdf_document));
 766         r = (PopplerRectangle *) g_list_nth_data (search->pages[current_page],
 767                                                   n_result);
 768         if (r == NULL)
 769                 return FALSE;
 770
 771         scale = pdf_document->scale;
 772         rectangle->x = (gint) floor (r->x1 * scale);
 773         rectangle->y = (gint) floor (r->y1 * scale);
 774         rectangle->width = (gint) ceil (r->x2 * scale) - rectangle->x;
 775         rectangle->height = (gint) ceil (r->y2 * scale) - rectangle->y;
 776
 777         return TRUE;
 778 }
 779
 780 int
 781 pdf_document_find_page_has_results (EvDocumentFind *document_find,
 782                                     int             page)
 783 {
 784         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
 785
 786         g_return_val_if_fail (search != NULL, FALSE);
 787
 788         return search->pages[page] != NULL;
 789 }
 790
 791 double
 792 pdf_document_find_get_progress (EvDocumentFind *document_find)
 793 {
 794         PdfDocumentSearch *search;
 795         int n_pages, pages_done;
 796
 797         search = PDF_DOCUMENT (document_find)->search;
 798
 799         if (search == NULL) {
 800                 return 0;
 801         }
 802
 803         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find));
 804         if (search->search_page > search->start_page) {
 805                 pages_done = search->search_page - search->start_page + 1;
 806         } else if (search->search_page == search->start_page) {
 807                 pages_done = n_pages;
 808         } else {
 809                 pages_done = n_pages - search->start_page + search->search_page;
 810         }
 811
 812         return pages_done / (double) n_pages;
 813 }
 814
 815 static void
 816 pdf_document_find_cancel (EvDocumentFind *document)
 817 {
 818         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 819
 820         if (pdf_document->search) {
 821                 pdf_document_search_free (pdf_document->search);
 822                 pdf_document->search = NULL;
 823         }
 824 }
 825
 826 static void
 827 pdf_document_find_iface_init (EvDocumentFindIface *iface)
 828 {
 829         iface->begin = pdf_document_find_begin;
 830         iface->get_n_results = pdf_document_find_get_n_results;
 831         iface->get_result = pdf_document_find_get_result;
 832         iface->page_has_results = pdf_document_find_page_has_results;
 833         iface->get_progress = pdf_document_find_get_progress;
 834         iface->cancel = pdf_document_find_cancel;
 835 }
 836
 837
 838 PdfDocument *
 839 pdf_document_new (void)
 840 {
 841         return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
 842 }