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 EvLinkDest *ev_link_dest_from_dest   (PdfDocument       *pdf_document,
  84                                              PopplerDest       *dest);
  85 static EvLink     *ev_link_from_action      (PdfDocument       *pdf_document,
  86                                              PopplerAction     *action);
  87 static void        pdf_document_search_free (PdfDocumentSearch *search);
  88
  89
  90 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
  91                          {
  92                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
  93                                                         pdf_document_document_iface_init);
  94                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
  95                                                         pdf_document_security_iface_init);
  96                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
  97                                                         pdf_document_document_thumbnails_iface_init);
  98                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
  99                                                         pdf_document_document_links_iface_init);
 100                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
 101                                                         pdf_document_document_fonts_iface_init);
 102                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
 103                                                         pdf_document_find_iface_init);
 104                                  G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER,
 105                                                         pdf_document_ps_exporter_iface_init);
 106                                  G_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 107                                                         pdf_selection_iface_init);
 108                          });
 109
 110
 111 static void
 112 set_rc_data (PdfDocument     *pdf_document,
 113              EvRenderContext *rc)
 114 {
 115         if (rc->data == NULL) {
 116                 rc->data = poppler_document_get_page (pdf_document->document,
 117                                                       rc->page);
 118                 rc->destroy = g_object_unref;
 119         } else {
 120                 g_assert (rc->page == poppler_page_get_index (POPPLER_PAGE (rc->data)));
 121         }
 122 }
 123
 124 static void
 125 pdf_document_search_free (PdfDocumentSearch   *search)
 126 {
 127         PdfDocument *pdf_document = search->document;
 128         int n_pages;
 129         int i;
 130
 131         if (search->idle != 0)
 132                 g_source_remove (search->idle);
 133
 134         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 135         for (i = 0; i < n_pages; i++) {
 136                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 137                 g_list_free (search->pages[i]);
 138         }
 139
 140         g_free (search->text);
 141 }
 142
 143 static void
 144 pdf_document_dispose (GObject *object)
 145 {
 146         PdfDocument *pdf_document = PDF_DOCUMENT(object);
 147
 148         if (pdf_document->search) {
 149                 pdf_document_search_free (pdf_document->search);
 150                 pdf_document->search = NULL;
 151         }
 152
 153         if (pdf_document->document) {
 154                 g_object_unref (pdf_document->document);
 155         }
 156
 157         if (pdf_document->font_info) {
 158                 poppler_font_info_free (pdf_document->font_info);
 159         }
 160
 161         if (pdf_document->fonts_iter) {
 162                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 163         }
 164 }
 165
 166 static void
 167 pdf_document_class_init (PdfDocumentClass *klass)
 168 {
 169         GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
 170
 171         g_object_class->dispose = pdf_document_dispose;
 172 }
 173
 174 static void
 175 pdf_document_init (PdfDocument *pdf_document)
 176 {
 177         pdf_document->password = NULL;
 178 }
 179
 180 static void
 181 convert_error (GError  *poppler_error,
 182                GError **error)
 183 {
 184         if (poppler_error == NULL)
 185                 return;
 186
 187         if (poppler_error->domain == POPPLER_ERROR) {
 188                 /* convert poppler errors into EvDocument errors */
 189                 gint code = EV_DOCUMENT_ERROR_INVALID;
 190                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 191                         code = EV_DOCUMENT_ERROR_INVALID;
 192                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 193                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 194
 195
 196                 g_set_error (error,
 197                              EV_DOCUMENT_ERROR,
 198                              code,
 199                              poppler_error->message,
 200                              NULL);
 201         } else {
 202                 g_propagate_error (error, poppler_error);
 203         }
 204 }
 205
 206
 207 /* EvDocument */
 208 static gboolean
 209 pdf_document_save (EvDocument  *document,
 210                    const char  *uri,
 211                    GError     **error)
 212 {
 213         gboolean retval;
 214         GError *poppler_error = NULL;
 215
 216         retval = poppler_document_save (PDF_DOCUMENT (document)->document,
 217                                         uri,
 218                                         &poppler_error);
 219         if (! retval)
 220                 convert_error (poppler_error, error);
 221
 222         return retval;
 223 }
 224
 225 static gboolean
 226 pdf_document_load (EvDocument   *document,
 227                    const char   *uri,
 228                    GError      **error)
 229 {
 230         GError *poppler_error = NULL;
 231         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 232
 233         pdf_document->document =
 234                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 235
 236         if (pdf_document->document == NULL) {
 237                 convert_error (poppler_error, error);
 238                 return FALSE;
 239         }
 240
 241         return TRUE;
 242 }
 243
 244 static int
 245 pdf_document_get_n_pages (EvDocument *document)
 246 {
 247         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 248 }
 249
 250 static void
 251 pdf_document_get_page_size (EvDocument   *document,
 252                             int           page,
 253                             double       *width,
 254                             double       *height)
 255 {
 256         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 257         PopplerPage *poppler_page;
 258
 259         poppler_page = poppler_document_get_page (pdf_document->document, page);
 260         poppler_page_get_size (poppler_page, width, height);
 261         g_object_unref (poppler_page);
 262 }
 263
 264 static char *
 265 pdf_document_get_page_label (EvDocument *document,
 266                              int         page)
 267 {
 268         PopplerPage *poppler_page;
 269         char *label = NULL;
 270
 271         poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
 272                                                   page);
 273
 274         g_object_get (G_OBJECT (poppler_page),
 275                       "label", &label,
 276                       NULL);
 277         g_object_unref (poppler_page);
 278
 279         return label;
 280 }
 281
 282 static gboolean
 283 pdf_document_has_attachments (EvDocument *document)
 284 {
 285         PdfDocument *pdf_document;
 286
 287         pdf_document = PDF_DOCUMENT (document);
 288
 289         return poppler_document_has_attachments (pdf_document->document);
 290 }
 291
 292 struct SaveToBufferData {
 293         gchar *buffer;
 294         gsize len, max;
 295 };
 296
 297 static gboolean
 298 attachment_save_to_buffer_callback (const gchar  *buf,
 299                                     gsize         count,
 300                                     gpointer      user_data,
 301                                     GError      **error)
 302 {
 303         struct SaveToBufferData *sdata = (SaveToBufferData *)user_data;
 304         gchar *new_buffer;
 305         gsize new_max;
 306
 307         if (sdata->len + count > sdata->max) {
 308                 new_max = MAX (sdata->max * 2, sdata->len + count);
 309                 new_buffer = (gchar *)g_realloc (sdata->buffer, new_max);
 310
 311                 sdata->buffer = new_buffer;
 312                 sdata->max = new_max;
 313         }
 314
 315         memcpy (sdata->buffer + sdata->len, buf, count);
 316         sdata->len += count;
 317
 318         return TRUE;
 319 }
 320
 321 static gboolean
 322 attachment_save_to_buffer (PopplerAttachment  *attachment,
 323                            gchar             **buffer,
 324                            gsize              *buffer_size,
 325                            GError            **error)
 326 {
 327         static const gint initial_max = 1024;
 328         struct SaveToBufferData sdata;
 329
 330         *buffer = NULL;
 331         *buffer_size = 0;
 332
 333         sdata.buffer = (gchar *) g_malloc (initial_max);
 334         sdata.max = initial_max;
 335         sdata.len = 0;
 336
 337         if (! poppler_attachment_save_to_callback (attachment,
 338                                                    attachment_save_to_buffer_callback,
 339                                                    &sdata,
 340                                                    error)) {
 341                 g_free (sdata.buffer);
 342                 return FALSE;
 343         }
 344
 345         *buffer = sdata.buffer;
 346         *buffer_size = sdata.len;
 347
 348         return TRUE;
 349 }
 350
 351 static GList *
 352 pdf_document_get_attachments (EvDocument *document)
 353 {
 354         PdfDocument *pdf_document;
 355         GList *attachments;
 356         GList *list;
 357         GList *retval = NULL;
 358
 359         pdf_document = PDF_DOCUMENT (document);
 360
 361         if (!pdf_document_has_attachments (document))
 362                 return NULL;
 363
 364         attachments = poppler_document_get_attachments (pdf_document->document);
 365
 366         for (list = attachments; list; list = list->next) {
 367                 PopplerAttachment *attachment;
 368                 EvAttachment *ev_attachment;
 369                 gchar *data = NULL;
 370                 gsize size;
 371                 GError *error = NULL;
 372
 373                 attachment = (PopplerAttachment *) list->data;
 374
 375                 if (attachment_save_to_buffer (attachment, &data, &size, &error)) {
 376                         ev_attachment = ev_attachment_new (attachment->name,
 377                                                            attachment->description,
 378                                                            attachment->mtime,
 379                                                            attachment->ctime,
 380                                                            size, data);
 381
 382                         retval = g_list_prepend (retval, ev_attachment);
 383                 } else {
 384                         if (error) {
 385                                 g_warning ("%s", error->message);
 386                                 g_error_free (error);
 387
 388                                 g_free (data);
 389                         }
 390                 }
 391
 392                 g_object_unref (attachment);
 393         }
 394
 395         return g_list_reverse (retval);
 396 }
 397
 398 static GdkPixbuf *
 399 pdf_document_render_pixbuf (EvDocument   *document,
 400                             EvRenderContext *rc)
 401 {
 402         PdfDocument *pdf_document;
 403         GdkPixbuf *pixbuf;
 404         double width_points, height_points;
 405         gint width, height;
 406
 407         pdf_document = PDF_DOCUMENT (document);
 408
 409         set_rc_data (pdf_document, rc);
 410
 411         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
 412
 413         if (rc->rotation == 90 || rc->rotation == 270) {
 414                 width = (int) ((height_points * rc->scale) + 0.5);
 415                 height = (int) ((width_points * rc->scale) + 0.5);
 416         } else {
 417                 width = (int) ((width_points * rc->scale) + 0.5);
 418                 height = (int) ((height_points * rc->scale) + 0.5);
 419         }
 420
 421         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 422                                  FALSE, 8,
 423                                  width, height);
 424
 425         poppler_page_render_to_pixbuf (POPPLER_PAGE (rc->data),
 426                                        0, 0,
 427                                        width, height,
 428                                        rc->scale,
 429                                        rc->rotation,
 430                                        pixbuf);
 431
 432
 433         return pixbuf;
 434 }
 435
 436 /* EvDocumentSecurity */
 437
 438 static gboolean
 439 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 440 {
 441         /* FIXME: do we really need to have this? */
 442         return FALSE;
 443 }
 444
 445 static void
 446 pdf_document_set_password (EvDocumentSecurity *document_security,
 447                            const char         *password)
 448 {
 449         PdfDocument *document = PDF_DOCUMENT (document_security);
 450
 451         if (document->password)
 452                 g_free (document->password);
 453
 454         document->password = g_strdup (password);
 455 }
 456
 457 static gboolean
 458 pdf_document_can_get_text (EvDocument *document)
 459 {
 460         return TRUE;
 461 }
 462
 463 static EvDocumentInfo *
 464 pdf_document_get_info (EvDocument *document)
 465 {
 466         EvDocumentInfo *info;
 467         PopplerPageLayout layout;
 468         PopplerPageMode mode;
 469         PopplerViewerPreferences view_prefs;
 470         PopplerPermissions permissions;
 471
 472         info = g_new0 (EvDocumentInfo, 1);
 473
 474         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 475                             EV_DOCUMENT_INFO_FORMAT |
 476                             EV_DOCUMENT_INFO_AUTHOR |
 477                             EV_DOCUMENT_INFO_SUBJECT |
 478                             EV_DOCUMENT_INFO_KEYWORDS |
 479                             EV_DOCUMENT_INFO_LAYOUT |
 480                             EV_DOCUMENT_INFO_START_MODE |
 481                             EV_DOCUMENT_INFO_PERMISSIONS |
 482                             EV_DOCUMENT_INFO_UI_HINTS |
 483                             EV_DOCUMENT_INFO_CREATOR |
 484                             EV_DOCUMENT_INFO_PRODUCER |
 485                             EV_DOCUMENT_INFO_CREATION_DATE |
 486                             EV_DOCUMENT_INFO_MOD_DATE |
 487                             EV_DOCUMENT_INFO_LINEARIZED |
 488                             EV_DOCUMENT_INFO_N_PAGES |
 489                             EV_DOCUMENT_INFO_SECURITY;
 490
 491
 492         g_object_get (PDF_DOCUMENT (document)->document,
 493                       "title", &(info->title),
 494                       "format", &(info->format),
 495                       "author", &(info->author),
 496                       "subject", &(info->subject),
 497                       "keywords", &(info->keywords),
 498                       "page-mode", &mode,
 499                       "page-layout", &layout,
 500                       "viewer-preferences", &view_prefs,
 501                       "permissions", &permissions,
 502                       "creator", &(info->creator),
 503                       "producer", &(info->producer),
 504                       "creation-date", &(info->creation_date),
 505                       "mod-date", &(info->modified_date),
 506                       "linearized", &(info->linearized),
 507                       NULL);
 508
 509         switch (layout) {
 510                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 511                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 512                         break;
 513                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 514                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 515                         break;
 516                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 517                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 518                         break;
 519                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 520                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 521                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 522                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 523                         break;
 524                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 525                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 526                         break;
 527                 default:
 528                         break;
 529         }
 530
 531         switch (mode) {
 532                 case POPPLER_PAGE_MODE_NONE:
 533                         info->mode = EV_DOCUMENT_MODE_NONE;
 534                         break;
 535                 case POPPLER_PAGE_MODE_USE_THUMBS:
 536                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 537                         break;
 538                 case POPPLER_PAGE_MODE_USE_OC:
 539                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 540                         break;
 541                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 542                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 543                         break;
 544                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 545                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 546                 default:
 547                         break;
 548         }
 549
 550         info->ui_hints = 0;
 551         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 552                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 553         }
 554         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 555                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 556         }
 557         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 558                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 559         }
 560         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 561                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 562         }
 563         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 564                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 565         }
 566         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 567                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 568         }
 569         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 570                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 571         }
 572
 573         info->permissions = 0;
 574         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 575                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 576         }
 577         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 578                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 579         }
 580         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 581                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 582         }
 583         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 584                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 585         }
 586
 587         info->n_pages = ev_document_get_n_pages (document);
 588
 589         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 590                 /* translators: this is the document security state */
 591                 info->security = g_strdup (_("Yes"));
 592         } else {
 593                 /* translators: this is the document security state */
 594                 info->security = g_strdup (_("No"));
 595         }
 596
 597         return info;
 598 }
 599
 600 static char *
 601 pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect)
 602 {
 603         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 604         PopplerPage *poppler_page;
 605         PopplerRectangle r;
 606         double height;
 607         char *text;
 608
 609         poppler_page = poppler_document_get_page (pdf_document->document, page);
 610         g_return_val_if_fail (poppler_page != NULL, NULL);
 611
 612         poppler_page_get_size (poppler_page, NULL, &height);
 613         r.x1 = rect->x1;
 614         r.y1 = height - rect->y2;
 615         r.x2 = rect->x2;
 616         r.y2 = height - rect->y1;
 617
 618         text = poppler_page_get_text (poppler_page, &r);
 619
 620         g_object_unref (poppler_page);
 621
 622         return text;
 623 }
 624
 625 static void
 626 pdf_document_document_iface_init (EvDocumentIface *iface)
 627 {
 628         iface->save = pdf_document_save;
 629         iface->load = pdf_document_load;
 630         iface->get_n_pages = pdf_document_get_n_pages;
 631         iface->get_page_size = pdf_document_get_page_size;
 632         iface->get_page_label = pdf_document_get_page_label;
 633         iface->has_attachments = pdf_document_has_attachments;
 634         iface->get_attachments = pdf_document_get_attachments;
 635         iface->render_pixbuf = pdf_document_render_pixbuf;
 636         iface->get_text = pdf_document_get_text;
 637         iface->can_get_text = pdf_document_can_get_text;
 638         iface->get_info = pdf_document_get_info;
 639 };
 640
 641 static void
 642 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 643 {
 644         iface->has_document_security = pdf_document_has_document_security;
 645         iface->set_password = pdf_document_set_password;
 646 }
 647
 648 static gdouble
 649 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 650 {
 651         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 652         int n_pages;
 653
 654         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 655
 656         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 657 }
 658
 659 static gboolean
 660 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 661                          int              n_pages)
 662 {
 663         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 664         gboolean result;
 665
 666         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 667
 668         if (pdf_document->font_info == NULL) {
 669                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 670         }
 671
 672         if (pdf_document->fonts_iter) {
 673                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 674         }
 675
 676         pdf_document->fonts_scanned_pages += n_pages;
 677
 678         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 679                                          &pdf_document->fonts_iter);
 680         if (!result) {
 681                 pdf_document->fonts_scanned_pages = 0;
 682                 poppler_font_info_free (pdf_document->font_info);
 683                 pdf_document->font_info = NULL;
 684         }
 685
 686         return result;
 687 }
 688
 689 static const char *
 690 font_type_to_string (PopplerFontType type)
 691 {
 692         switch (type) {
 693                 case POPPLER_FONT_TYPE_TYPE1:
 694                         return _("Type 1");
 695                 case POPPLER_FONT_TYPE_TYPE1C:
 696                         return _("Type 1C");
 697                 case POPPLER_FONT_TYPE_TYPE3:
 698                         return _("Type 3");
 699                 case POPPLER_FONT_TYPE_TRUETYPE:
 700                         return _("TrueType");
 701                 case POPPLER_FONT_TYPE_CID_TYPE0:
 702                         return _("Type 1 (CID)");
 703                 case POPPLER_FONT_TYPE_CID_TYPE0C:
 704                         return _("Type 1C (CID)");
 705                 case POPPLER_FONT_TYPE_CID_TYPE2:
 706                         return _("TrueType (CID)");
 707                 default:
 708                         return _("Unknown font type");
 709         }
 710 }
 711
 712 static void
 713 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 714                                GtkTreeModel    *model)
 715 {
 716         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 717         PopplerFontsIter *iter = pdf_document->fonts_iter;
 718
 719         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 720
 721         if (!iter)
 722                 return;
 723
 724         do {
 725                 GtkTreeIter list_iter;
 726                 const char *name;
 727                 const char *type;
 728                 const char *embedded;
 729                 char *details;
 730
 731                 name = poppler_fonts_iter_get_name (iter);
 732
 733                 if (name == NULL) {
 734                         name = _("No name");
 735                 }
 736
 737                 type = font_type_to_string (
 738                         poppler_fonts_iter_get_font_type (iter));
 739
 740                 if (poppler_fonts_iter_is_embedded (iter)) {
 741                         if (poppler_fonts_iter_is_subset (iter))
 742                                 embedded = _("Embedded subset");
 743                         else
 744                                 embedded = _("Embedded");
 745                 } else {
 746                         embedded = _("Not embedded");
 747                 }
 748
 749                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 750
 751                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 752                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 753                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 754                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 755                                     -1);
 756
 757                 g_free (details);
 758         } while (poppler_fonts_iter_next (iter));
 759 }
 760
 761 static void
 762 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 763 {
 764         iface->fill_model = pdf_document_fonts_fill_model;
 765         iface->scan = pdf_document_fonts_scan;
 766         iface->get_progress = pdf_document_fonts_get_progress;
 767 }
 768
 769 static gboolean
 770 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
 771 {
 772         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 773         PopplerIndexIter *iter;
 774
 775         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
 776
 777         iter = poppler_index_iter_new (pdf_document->document);
 778         if (iter == NULL)
 779                 return FALSE;
 780         poppler_index_iter_free (iter);
 781
 782         return TRUE;
 783 }
 784
 785 static EvLinkDest *
 786 ev_link_dest_from_dest (PdfDocument *pdf_document,
 787                         PopplerDest *dest)
 788 {
 789         EvLinkDest *ev_dest = NULL;
 790         const char *unimplemented_dest = NULL;
 791
 792         g_assert (dest != NULL);
 793
 794         switch (dest->type) {
 795                 case POPPLER_DEST_XYZ: {
 796                         PopplerPage *poppler_page;
 797                         double height;
 798
 799                         poppler_page = poppler_document_get_page (pdf_document->document,
 800                                                                   MAX (0, dest->page_num - 1));
 801                         poppler_page_get_size (poppler_page, NULL, &height);
 802                         ev_dest = ev_link_dest_new_xyz (dest->page_num - 1,
 803                                                         dest->left,
 804                                                         height - dest->top,
 805                                                         dest->zoom);
 806                         g_object_unref (poppler_page);
 807                 }
 808                         break;
 809                 case POPPLER_DEST_FIT:
 810                         ev_dest = ev_link_dest_new_fit (dest->page_num - 1);
 811                         break;
 812                 case POPPLER_DEST_FITH: {
 813                         PopplerPage *poppler_page;
 814                         double height;
 815
 816                         poppler_page = poppler_document_get_page (pdf_document->document,
 817                                                                   MAX (0, dest->page_num - 1));
 818                         poppler_page_get_size (poppler_page, NULL, &height);
 819                         ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
 820                                                          height - dest->top);
 821                         g_object_unref (poppler_page);
 822                 }
 823                         break;
 824                 case POPPLER_DEST_FITV:
 825                         ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
 826                                                          dest->left);
 827                         break;
 828                 case POPPLER_DEST_FITR: {
 829                         PopplerPage *poppler_page;
 830                         double height;
 831
 832                         poppler_page = poppler_document_get_page (pdf_document->document,
 833                                                                   MAX (0, dest->page_num - 1));
 834                         poppler_page_get_size (poppler_page, NULL, &height);
 835                         ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
 836                                                          dest->left,
 837                                                          height - dest->bottom,
 838                                                          dest->right,
 839                                                          height - dest->top);
 840                         g_object_unref (poppler_page);
 841                 }
 842                         break;
 843                 case POPPLER_DEST_FITB:
 844                         unimplemented_dest = "POPPLER_DEST_FITB";
 845                         break;
 846                 case POPPLER_DEST_FITBH:
 847                         unimplemented_dest = "POPPLER_DEST_FITBH";
 848                         break;
 849                 case POPPLER_DEST_FITBV:
 850                         unimplemented_dest = "POPPLER_DEST_FITBV";
 851                         break;
 852                 case POPPLER_DEST_NAMED:
 853                         ev_dest = ev_link_dest_new_named (dest->named_dest);
 854                         break;
 855                 case POPPLER_DEST_UNKNOWN:
 856                         unimplemented_dest = "POPPLER_DEST_UNKNOWN";
 857                         break;
 858         }
 859
 860         if (unimplemented_dest) {
 861                 g_warning ("Unimplemented named action: %s, please post a "
 862                            "bug report in Evince bugzilla "
 863                            "(http://bugzilla.gnome.org) with a testcase.",
 864                            unimplemented_dest);
 865         }
 866
 867         if (!ev_dest)
 868                 ev_dest = ev_link_dest_new_page (dest->page_num - 1);
 869
 870         return ev_dest;
 871 }
 872
 873 static EvLink *
 874 ev_link_from_action (PdfDocument   *pdf_document,
 875                      PopplerAction *action)
 876 {
 877         EvLink       *link = NULL;
 878         EvLinkAction *ev_action = NULL;
 879         const char   *unimplemented_action = NULL;
 880
 881         switch (action->type) {
 882                 case POPPLER_ACTION_GOTO_DEST: {
 883                         EvLinkDest *dest;
 884
 885                         dest = ev_link_dest_from_dest (pdf_document, action->goto_dest.dest);
 886                         ev_action = ev_link_action_new_dest (dest);
 887                 }
 888                         break;
 889                 case POPPLER_ACTION_GOTO_REMOTE: {
 890                         EvLinkDest *dest;
 891
 892                         dest = ev_link_dest_from_dest (pdf_document, action->goto_remote.dest);
 893                         ev_action = ev_link_action_new_remote (dest,
 894                                                                action->goto_remote.file_name);
 895
 896                 }
 897                         break;
 898                 case POPPLER_ACTION_LAUNCH:
 899                         ev_action = ev_link_action_new_launch (action->launch.file_name,
 900                                                                action->launch.params);
 901                         break;
 902                 case POPPLER_ACTION_URI:
 903                         ev_action = ev_link_action_new_external_uri (action->uri.uri);
 904                         break;
 905                 case POPPLER_ACTION_NAMED:
 906                         ev_action = ev_link_action_new_named (action->named.named_dest);
 907                         break;
 908                 case POPPLER_ACTION_MOVIE:
 909                         unimplemented_action = "POPPLER_ACTION_MOVIE";
 910                         break;
 911                 case POPPLER_ACTION_UNKNOWN:
 912                         unimplemented_action = "POPPLER_ACTION_UNKNOWN";
 913         }
 914
 915         if (unimplemented_action) {
 916                 g_warning ("Unimplemented action: %s, please post a bug report with a testcase.",
 917                            unimplemented_action);
 918         }
 919
 920         link = ev_link_new (action->any.title, ev_action);
 921
 922         return link;
 923 }
 924
 925 static void
 926 build_tree (PdfDocument      *pdf_document,
 927             GtkTreeModel     *model,
 928             GtkTreeIter      *parent,
 929             PopplerIndexIter *iter)
 930 {
 931
 932         do {
 933                 GtkTreeIter tree_iter;
 934                 PopplerIndexIter *child;
 935                 PopplerAction *action;
 936                 EvLink *link = NULL;
 937                 gboolean expand;
 938                 char *title_markup;
 939
 940                 action = poppler_index_iter_get_action (iter);
 941                 expand = poppler_index_iter_is_open (iter);
 942
 943                 if (!action)
 944                         continue;
 945
 946                 switch (action->type) {
 947                         case POPPLER_ACTION_GOTO_DEST: {
 948                                 /* For bookmarks, solve named destinations */
 949                                 if (action->goto_dest.dest->type == POPPLER_DEST_NAMED) {
 950                                         PopplerDest *dest;
 951                                         EvLinkDest *ev_dest = NULL;
 952                                         EvLinkAction *ev_action;
 953
 954                                         dest = poppler_document_find_dest (pdf_document->document,
 955                                                                            action->goto_dest.dest->named_dest);
 956                                         if (!dest) {
 957                                                 link = ev_link_from_action (pdf_document, action);
 958                                                 break;
 959                                         }
 960
 961                                         ev_dest = ev_link_dest_from_dest (pdf_document, dest);
 962                                         poppler_dest_free (dest);
 963
 964                                         ev_action = ev_link_action_new_dest (ev_dest);
 965                                         link = ev_link_new (action->any.title, ev_action);
 966                                 } else {
 967                                         link = ev_link_from_action (pdf_document, action);
 968                                 }
 969                         }
 970                                 break;
 971                         default:
 972                                 link = ev_link_from_action (pdf_document, action);
 973                                 break;
 974                 }
 975
 976                 if (!link) {
 977                         poppler_action_free (action);
 978                         continue;
 979                 }
 980
 981                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
 982                 title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
 983
 984                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
 985                                     EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
 986                                     EV_DOCUMENT_LINKS_COLUMN_LINK, link,
 987                                     EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
 988                                     -1);
 989
 990                 g_free (title_markup);
 991                 g_object_unref (link);
 992
 993                 child = poppler_index_iter_get_child (iter);
 994                 if (child)
 995                         build_tree (pdf_document, model, &tree_iter, child);
 996                 poppler_index_iter_free (child);
 997                 poppler_action_free (action);
 998
 999         } while (poppler_index_iter_next (iter));
1000 }
1001
1002 static GtkTreeModel *
1003 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
1004 {
1005         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1006         GtkTreeModel *model = NULL;
1007         PopplerIndexIter *iter;
1008
1009         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
1010
1011         iter = poppler_index_iter_new (pdf_document->document);
1012         /* Create the model if we have items*/
1013         if (iter != NULL) {
1014                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
1015                                                              G_TYPE_STRING,
1016                                                              G_TYPE_OBJECT,
1017                                                              G_TYPE_BOOLEAN);
1018                 build_tree (pdf_document, model, NULL, iter);
1019                 poppler_index_iter_free (iter);
1020         }
1021
1022         return model;
1023 }
1024
1025 static GList *
1026 pdf_document_links_get_links (EvDocumentLinks *document_links,
1027                               gint             page)
1028 {
1029         PdfDocument *pdf_document;
1030         PopplerPage *poppler_page;
1031         GList *retval = NULL;
1032         GList *mapping_list;
1033         GList *list;
1034         double height;
1035
1036         pdf_document = PDF_DOCUMENT (document_links);
1037         poppler_page = poppler_document_get_page (pdf_document->document,
1038                                                   page);
1039         mapping_list = poppler_page_get_link_mapping (poppler_page);
1040         poppler_page_get_size (poppler_page, NULL, &height);
1041
1042         for (list = mapping_list; list; list = list->next) {
1043                 PopplerLinkMapping *link_mapping;
1044                 EvLinkMapping *ev_link_mapping;
1045
1046                 link_mapping = (PopplerLinkMapping *)list->data;
1047                 ev_link_mapping = g_new (EvLinkMapping, 1);
1048                 ev_link_mapping->link = ev_link_from_action (pdf_document,
1049                                                              link_mapping->action);
1050                 ev_link_mapping->x1 = link_mapping->area.x1;
1051                 ev_link_mapping->x2 = link_mapping->area.x2;
1052                 /* Invert this for X-style coordinates */
1053                 ev_link_mapping->y1 = height - link_mapping->area.y2;
1054                 ev_link_mapping->y2 = height - link_mapping->area.y1;
1055
1056                 retval = g_list_prepend (retval, ev_link_mapping);
1057         }
1058
1059         poppler_page_free_link_mapping (mapping_list);
1060         g_object_unref (poppler_page);
1061
1062         return g_list_reverse (retval);
1063 }
1064
1065 static EvLinkDest *
1066 pdf_document_links_find_link_dest (EvDocumentLinks  *document_links,
1067                                    const gchar      *link_name)
1068 {
1069         PdfDocument *pdf_document;
1070         PopplerDest *dest;
1071         EvLinkDest *ev_dest = NULL;
1072
1073         pdf_document = PDF_DOCUMENT (document_links);
1074         dest = poppler_document_find_dest (pdf_document->document,
1075                                            link_name);
1076         if (dest) {
1077                 ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1078                 poppler_dest_free (dest);
1079         }
1080
1081         return ev_dest;
1082 }
1083
1084 static void
1085 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
1086 {
1087         iface->has_document_links = pdf_document_links_has_document_links;
1088         iface->get_links_model = pdf_document_links_get_links_model;
1089         iface->get_links = pdf_document_links_get_links;
1090         iface->find_link_dest = pdf_document_links_find_link_dest;
1091 }
1092
1093 static GdkPixbuf *
1094 make_thumbnail_for_size (PdfDocument   *pdf_document,
1095                          gint           page,
1096                          int            rotation,
1097                          gint           size)
1098 {
1099         PopplerPage *poppler_page;
1100         GdkPixbuf *pixbuf;
1101         int width, height;
1102         double scale;
1103         gdouble unscaled_width, unscaled_height;
1104
1105         poppler_page = poppler_document_get_page (pdf_document->document, page);
1106         g_return_val_if_fail (poppler_page != NULL, NULL);
1107
1108         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page,
1109                                                 size, &width, &height);
1110         poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
1111         scale = width / unscaled_width;
1112
1113         /* rotate */
1114         if (rotation == 90 || rotation == 270) {
1115                 int temp;
1116                 temp = width;
1117                 width = height;
1118                 height = temp;
1119         }
1120
1121         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1122                                  width, height);
1123         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1124
1125         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1126                                        width, height,
1127                                        scale, rotation, pixbuf);
1128
1129
1130         g_object_unref (poppler_page);
1131
1132         return pixbuf;
1133 }
1134
1135 static GdkPixbuf *
1136 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1137                                        gint                  page,
1138                                        gint                  rotation,
1139                                        gint                  size,
1140                                        gboolean              border)
1141 {
1142         PdfDocument *pdf_document;
1143         PopplerPage *poppler_page;
1144         GdkPixbuf *pixbuf;
1145         GdkPixbuf *border_pixbuf;
1146
1147         pdf_document = PDF_DOCUMENT (document_thumbnails);
1148
1149         poppler_page = poppler_document_get_page (pdf_document->document, page);
1150         g_return_val_if_fail (poppler_page != NULL, NULL);
1151
1152         pixbuf = poppler_page_get_thumbnail (poppler_page);
1153
1154         if (pixbuf == NULL) {
1155                 /* There is no provided thumbnail.  We need to make one. */
1156                 pixbuf = make_thumbnail_for_size (pdf_document, page, rotation, size);
1157         }
1158
1159         if (border) {
1160                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, rotation, pixbuf);
1161                 g_object_unref (pixbuf);
1162                 pixbuf = border_pixbuf;
1163         }
1164
1165         g_object_unref (poppler_page);
1166
1167         return pixbuf;
1168 }
1169
1170 static void
1171 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1172                                         gint                  page,
1173                                         gint                  size,
1174                                         gint                 *width,
1175                                         gint                 *height)
1176 {
1177         PdfDocument *pdf_document;
1178         PopplerPage *poppler_page;
1179         gint has_thumb;
1180
1181         pdf_document = PDF_DOCUMENT (document_thumbnails);
1182         poppler_page = poppler_document_get_page (pdf_document->document, page);
1183
1184         g_return_if_fail (width != NULL);
1185         g_return_if_fail (height != NULL);
1186         g_return_if_fail (poppler_page != NULL);
1187
1188         has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
1189
1190         if (!has_thumb) {
1191                 double page_width, page_height;
1192
1193                 poppler_page_get_size (poppler_page, &page_width, &page_height);
1194                 *width = size;
1195                 *height = (int) (size * page_height / page_width);
1196         }
1197         g_object_unref (poppler_page);
1198 }
1199
1200 static void
1201 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1202 {
1203         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1204         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1205 }
1206
1207
1208 static gboolean
1209 pdf_document_search_idle_callback (void *data)
1210 {
1211         PdfDocumentSearch *search = (PdfDocumentSearch*) data;
1212         PdfDocument *pdf_document = search->document;
1213         int n_pages;
1214         GList *matches;
1215         PopplerPage *page;
1216
1217         page = poppler_document_get_page (search->document->document,
1218                                           search->search_page);
1219
1220         ev_document_doc_mutex_lock ();
1221         matches = poppler_page_find_text (page, search->text);
1222         ev_document_doc_mutex_unlock ();
1223
1224         g_object_unref (page);
1225
1226         search->pages[search->search_page] = matches;
1227         ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document),
1228                                   search->search_page);
1229
1230         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document));
1231         search->search_page += 1;
1232         if (search->search_page == n_pages) {
1233                 /* wrap around */
1234                 search->search_page = 0;
1235         }
1236
1237         if (search->search_page != search->start_page) {
1238                 return TRUE;
1239         }
1240
1241         /* We're done. */
1242         search->idle = 0; /* will return FALSE to remove */
1243         return FALSE;
1244 }
1245
1246
1247 static PdfDocumentSearch *
1248 pdf_document_search_new (PdfDocument *pdf_document,
1249                          int          start_page,
1250                          const char  *text)
1251 {
1252         PdfDocumentSearch *search;
1253         int n_pages;
1254         int i;
1255
1256         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
1257
1258         search = g_new0 (PdfDocumentSearch, 1);
1259
1260         search->text = g_strdup (text);
1261         search->pages = g_new0 (GList *, n_pages);
1262         for (i = 0; i < n_pages; i++) {
1263                 search->pages[i] = NULL;
1264         }
1265
1266         search->document = pdf_document;
1267
1268         /* We add at low priority so the progress bar repaints */
1269         search->idle = g_idle_add_full (G_PRIORITY_LOW,
1270                                         pdf_document_search_idle_callback,
1271                                         search,
1272                                         NULL);
1273
1274         search->start_page = start_page;
1275         search->search_page = start_page;
1276
1277         return search;
1278 }
1279
1280 static void
1281 pdf_document_find_begin (EvDocumentFind   *document,
1282                          int               page,
1283                          const char       *search_string,
1284                          gboolean          case_sensitive)
1285 {
1286         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1287
1288         /* FIXME handle case_sensitive (right now XPDF
1289          * code is always case insensitive for ASCII
1290          * and case sensitive for all other languaages)
1291          */
1292
1293         if (pdf_document->search &&
1294             strcmp (search_string, pdf_document->search->text) == 0)
1295                 return;
1296
1297         if (pdf_document->search)
1298                 pdf_document_search_free (pdf_document->search);
1299
1300         pdf_document->search = pdf_document_search_new (pdf_document,
1301                                                         page,
1302                                                         search_string);
1303 }
1304
1305 int
1306 pdf_document_find_get_n_results (EvDocumentFind *document_find, int page)
1307 {
1308         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1309
1310         if (search) {
1311                 return g_list_length (search->pages[page]);
1312         } else {
1313                 return 0;
1314         }
1315 }
1316
1317 gboolean
1318 pdf_document_find_get_result (EvDocumentFind *document_find,
1319                               int             page,
1320                               int             n_result,
1321                               EvRectangle    *rectangle)
1322 {
1323         PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
1324         PdfDocumentSearch *search = pdf_document->search;
1325         PopplerPage *poppler_page;
1326         PopplerRectangle *r;
1327         double height;
1328
1329         if (search == NULL)
1330                 return FALSE;
1331
1332         r = (PopplerRectangle *) g_list_nth_data (search->pages[page],
1333                                                   n_result);
1334         if (r == NULL)
1335                 return FALSE;
1336
1337         poppler_page = poppler_document_get_page (pdf_document->document, page);
1338         poppler_page_get_size (poppler_page, NULL, &height);
1339         rectangle->x1 = r->x1;
1340         rectangle->y1 = height - r->y2;
1341         rectangle->x2 = r->x2;
1342         rectangle->y2 = height - r->y1;
1343         g_object_unref (poppler_page);
1344
1345         return TRUE;
1346 }
1347
1348 int
1349 pdf_document_find_page_has_results (EvDocumentFind *document_find,
1350                                     int             page)
1351 {
1352         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1353
1354         return search && search->pages[page] != NULL;
1355 }
1356
1357 double
1358 pdf_document_find_get_progress (EvDocumentFind *document_find)
1359 {
1360         PdfDocumentSearch *search;
1361         int n_pages, pages_done;
1362
1363         search = PDF_DOCUMENT (document_find)->search;
1364
1365         if (search == NULL) {
1366                 return 0;
1367         }
1368
1369         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find));
1370         if (search->search_page > search->start_page) {
1371                 pages_done = search->search_page - search->start_page + 1;
1372         } else if (search->search_page == search->start_page) {
1373                 pages_done = n_pages;
1374         } else {
1375                 pages_done = n_pages - search->start_page + search->search_page;
1376         }
1377
1378         return pages_done / (double) n_pages;
1379 }
1380
1381 static void
1382 pdf_document_find_cancel (EvDocumentFind *document)
1383 {
1384         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1385
1386         if (pdf_document->search) {
1387                 pdf_document_search_free (pdf_document->search);
1388                 pdf_document->search = NULL;
1389         }
1390 }
1391
1392 static void
1393 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1394 {
1395         iface->begin = pdf_document_find_begin;
1396         iface->get_n_results = pdf_document_find_get_n_results;
1397         iface->get_result = pdf_document_find_get_result;
1398         iface->page_has_results = pdf_document_find_page_has_results;
1399         iface->get_progress = pdf_document_find_get_progress;
1400         iface->cancel = pdf_document_find_cancel;
1401 }
1402
1403 static void
1404 pdf_document_ps_exporter_begin (EvPSExporter *exporter, const char *filename,
1405                                 int first_page, int last_page,
1406                                 double width, double height, gboolean duplex)
1407 {
1408         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1409
1410         pdf_document->ps_file = poppler_ps_file_new (pdf_document->document, filename,
1411                                                      first_page,
1412                                                      last_page - first_page + 1);
1413         poppler_ps_file_set_paper_size (pdf_document->ps_file, width, height);
1414         poppler_ps_file_set_duplex (pdf_document->ps_file, duplex);
1415 }
1416
1417 static void
1418 pdf_document_ps_exporter_do_page (EvPSExporter *exporter, EvRenderContext *rc)
1419 {
1420         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1421         PopplerPage *poppler_page;
1422
1423         g_return_if_fail (pdf_document->ps_file != NULL);
1424
1425         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1426         poppler_page_render_to_ps (poppler_page, pdf_document->ps_file);
1427         g_object_unref (poppler_page);
1428 }
1429
1430 static void
1431 pdf_document_ps_exporter_end (EvPSExporter *exporter)
1432 {
1433         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1434
1435         poppler_ps_file_free (pdf_document->ps_file);
1436         pdf_document->ps_file = NULL;
1437 }
1438
1439 static void
1440 pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface)
1441 {
1442         iface->begin = pdf_document_ps_exporter_begin;
1443         iface->do_page = pdf_document_ps_exporter_do_page;
1444         iface->end = pdf_document_ps_exporter_end;
1445 }
1446
1447
1448 void
1449 pdf_selection_render_selection (EvSelection      *selection,
1450                                 EvRenderContext  *rc,
1451                                 GdkPixbuf       **pixbuf,
1452                                 EvRectangle      *points,
1453                                 EvRectangle      *old_points,
1454                                 GdkColor        *text,
1455                                 GdkColor        *base)
1456 {
1457         PdfDocument *pdf_document;
1458         double width_points, height_points;
1459         gint width, height;
1460
1461         pdf_document = PDF_DOCUMENT (selection);
1462         set_rc_data (pdf_document, rc);
1463
1464         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
1465         width = (int) ((width_points * rc->scale) + 0.5);
1466         height = (int) ((height_points * rc->scale) + 0.5);
1467
1468         if (*pixbuf == NULL) {
1469                 * pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1470                                            TRUE, 8,
1471                                            width, height);
1472         }
1473
1474         poppler_page_render_selection (POPPLER_PAGE (rc->data),
1475                                        rc->scale, rc->rotation, *pixbuf,
1476                                        (PopplerRectangle *)points,
1477                                        (PopplerRectangle *)old_points,
1478                                        text,
1479                                        base);
1480 }
1481
1482
1483 GdkRegion *
1484 pdf_selection_get_selection_region (EvSelection     *selection,
1485                                     EvRenderContext *rc,
1486                                     EvRectangle     *points)
1487 {
1488         PdfDocument *pdf_document;
1489         GdkRegion *retval;
1490
1491         pdf_document = PDF_DOCUMENT (selection);
1492
1493         set_rc_data (pdf_document, rc);
1494
1495         retval = poppler_page_get_selection_region ((PopplerPage *)rc->data, rc->scale, (PopplerRectangle *) points);
1496
1497         return retval;
1498 }
1499
1500 GdkRegion *
1501 pdf_selection_get_selection_map (EvSelection     *selection,
1502                                  EvRenderContext *rc)
1503 {
1504         PdfDocument *pdf_document;
1505         PopplerPage *poppler_page;
1506         PopplerRectangle points;
1507         GdkRegion *retval;
1508
1509         pdf_document = PDF_DOCUMENT (selection);
1510         poppler_page = poppler_document_get_page (pdf_document->document,
1511                                                   rc->page);
1512
1513         points.x1 = 0.0;
1514         points.y1 = 0.0;
1515         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
1516         retval = poppler_page_get_selection_region (poppler_page, 1.0, &points);
1517         g_object_unref (poppler_page);
1518
1519         return retval;
1520 }
1521
1522 static void
1523 pdf_selection_iface_init (EvSelectionIface *iface)
1524 {
1525         iface->render_selection = pdf_selection_render_selection;
1526         iface->get_selection_region = pdf_selection_get_selection_region;
1527         iface->get_selection_map = pdf_selection_get_selection_map;
1528 }
1529
1530 PdfDocument *
1531 pdf_document_new (void)
1532 {
1533         return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
1534 }