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 "config.h"
  21
  22 #include <math.h>
  23 #include <string.h>
  24 #include <gtk/gtk.h>
  25 #include <poppler.h>
  26 #include <poppler-document.h>
  27 #include <poppler-page.h>
  28 #ifdef HAVE_CAIRO_PDF
  29 #include <cairo-pdf.h>
  30 #endif
  31 #include <glib/gi18n.h>
  32
  33 #include "ev-poppler.h"
  34 #include "ev-file-exporter.h"
  35 #include "ev-document-find.h"
  36 #include "ev-document-misc.h"
  37 #include "ev-document-links.h"
  38 #include "ev-document-fonts.h"
  39 #include "ev-document-security.h"
  40 #include "ev-document-thumbnails.h"
  41 #include "ev-document-transition.h"
  42 #include "ev-selection.h"
  43 #include "ev-attachment.h"
  44
  45 typedef struct {
  46         PdfDocument *document;
  47         char *text;
  48         GList **pages;
  49         guint idle;
  50         int start_page;
  51         int search_page;
  52 } PdfDocumentSearch;
  53
  54 typedef struct {
  55         EvFileExporterFormat format;
  56         PopplerPSFile *ps_file;
  57 #ifdef HAVE_CAIRO_PDF
  58         cairo_t *pdf_cairo;
  59 #endif
  60 } PdfPrintContext;
  61
  62 struct _PdfDocumentClass
  63 {
  64         GObjectClass parent_class;
  65 };
  66
  67 struct _PdfDocument
  68 {
  69         GObject parent_instance;
  70
  71         PopplerDocument *document;
  72         gchar *password;
  73
  74         PopplerFontInfo *font_info;
  75         PopplerFontsIter *fonts_iter;
  76         int fonts_scanned_pages;
  77
  78         PdfDocumentSearch *search;
  79         PdfPrintContext *print_ctx;
  80 };
  81
  82 static void pdf_document_document_iface_init            (EvDocumentIface           *iface);
  83 static void pdf_document_security_iface_init            (EvDocumentSecurityIface   *iface);
  84 static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
  85 static void pdf_document_document_links_iface_init      (EvDocumentLinksIface      *iface);
  86 static void pdf_document_document_fonts_iface_init      (EvDocumentFontsIface      *iface);
  87 static void pdf_document_find_iface_init                (EvDocumentFindIface       *iface);
  88 static void pdf_document_file_exporter_iface_init       (EvFileExporterIface       *iface);
  89 static void pdf_selection_iface_init                    (EvSelectionIface          *iface);
  90 static void pdf_document_page_transition_iface_init     (EvDocumentTransitionIface *iface);
  91 static void pdf_document_thumbnails_get_dimensions      (EvDocumentThumbnails      *document_thumbnails,
  92                                                          gint                       page,
  93                                                          gint                       size,
  94                                                          gint                      *width,
  95                                                          gint                      *height);
  96 static int  pdf_document_get_n_pages                    (EvDocument                *document);
  97
  98 static EvLinkDest *ev_link_dest_from_dest   (PdfDocument       *pdf_document,
  99                                              PopplerDest       *dest);
 100 static EvLink     *ev_link_from_action      (PdfDocument       *pdf_document,
 101                                              PopplerAction     *action);
 102 static void        pdf_document_search_free (PdfDocumentSearch *search);
 103 static void        pdf_print_context_free   (PdfPrintContext   *ctx);
 104
 105
 106 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
 107                          {
 108                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
 109                                                         pdf_document_document_iface_init);
 110                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
 111                                                         pdf_document_security_iface_init);
 112                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
 113                                                         pdf_document_document_thumbnails_iface_init);
 114                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
 115                                                         pdf_document_document_links_iface_init);
 116                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
 117                                                         pdf_document_document_fonts_iface_init);
 118                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
 119                                                         pdf_document_find_iface_init);
 120                                  G_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER,
 121                                                         pdf_document_file_exporter_iface_init);
 122                                  G_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 123                                                         pdf_selection_iface_init);
 124                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_TRANSITION,
 125                                                         pdf_document_page_transition_iface_init);
 126                          });
 127
 128
 129 static void
 130 set_rc_data (PdfDocument     *pdf_document,
 131              EvRenderContext *rc)
 132 {
 133         if (rc->data == NULL) {
 134                 rc->data = poppler_document_get_page (pdf_document->document,
 135                                                       rc->page);
 136                 rc->destroy = g_object_unref;
 137         } else {
 138                 g_assert (rc->page == poppler_page_get_index (POPPLER_PAGE (rc->data)));
 139         }
 140 }
 141
 142 static void
 143 pdf_document_search_free (PdfDocumentSearch   *search)
 144 {
 145         PdfDocument *pdf_document = search->document;
 146         int n_pages;
 147         int i;
 148
 149         if (search->idle != 0)
 150                 g_source_remove (search->idle);
 151
 152         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 153         for (i = 0; i < n_pages; i++) {
 154                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 155                 g_list_free (search->pages[i]);
 156         }
 157         g_free (search->pages);
 158
 159         g_free (search->text);
 160         g_free (search);
 161 }
 162
 163 static void
 164 pdf_document_dispose (GObject *object)
 165 {
 166         PdfDocument *pdf_document = PDF_DOCUMENT(object);
 167
 168         if (pdf_document->print_ctx) {
 169                 pdf_print_context_free (pdf_document->print_ctx);
 170                 pdf_document->print_ctx = NULL;
 171         }
 172
 173         if (pdf_document->search) {
 174                 pdf_document_search_free (pdf_document->search);
 175                 pdf_document->search = NULL;
 176         }
 177
 178         if (pdf_document->document) {
 179                 g_object_unref (pdf_document->document);
 180         }
 181
 182         if (pdf_document->font_info) {
 183                 poppler_font_info_free (pdf_document->font_info);
 184         }
 185
 186         if (pdf_document->fonts_iter) {
 187                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 188         }
 189 }
 190
 191 static void
 192 pdf_document_class_init (PdfDocumentClass *klass)
 193 {
 194         GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
 195
 196         g_object_class->dispose = pdf_document_dispose;
 197 }
 198
 199 static void
 200 pdf_document_init (PdfDocument *pdf_document)
 201 {
 202         pdf_document->password = NULL;
 203 }
 204
 205 static void
 206 convert_error (GError  *poppler_error,
 207                GError **error)
 208 {
 209         if (poppler_error == NULL)
 210                 return;
 211
 212         if (poppler_error->domain == POPPLER_ERROR) {
 213                 /* convert poppler errors into EvDocument errors */
 214                 gint code = EV_DOCUMENT_ERROR_INVALID;
 215                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 216                         code = EV_DOCUMENT_ERROR_INVALID;
 217                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 218                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 219
 220
 221                 g_set_error (error,
 222                              EV_DOCUMENT_ERROR,
 223                              code,
 224                              poppler_error->message,
 225                              NULL);
 226         } else {
 227                 g_propagate_error (error, poppler_error);
 228         }
 229 }
 230
 231
 232 /* EvDocument */
 233 static gboolean
 234 pdf_document_save (EvDocument  *document,
 235                    const char  *uri,
 236                    GError     **error)
 237 {
 238         gboolean retval;
 239         GError *poppler_error = NULL;
 240
 241         retval = poppler_document_save (PDF_DOCUMENT (document)->document,
 242                                         uri,
 243                                         &poppler_error);
 244         if (! retval)
 245                 convert_error (poppler_error, error);
 246
 247         return retval;
 248 }
 249
 250 static gboolean
 251 pdf_document_load (EvDocument   *document,
 252                    const char   *uri,
 253                    GError      **error)
 254 {
 255         GError *poppler_error = NULL;
 256         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 257
 258         pdf_document->document =
 259                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 260
 261         if (pdf_document->document == NULL) {
 262                 convert_error (poppler_error, error);
 263                 return FALSE;
 264         }
 265
 266         return TRUE;
 267 }
 268
 269 static int
 270 pdf_document_get_n_pages (EvDocument *document)
 271 {
 272         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 273 }
 274
 275 static void
 276 pdf_document_get_page_size (EvDocument   *document,
 277                             int           page,
 278                             double       *width,
 279                             double       *height)
 280 {
 281         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 282         PopplerPage *poppler_page;
 283
 284         poppler_page = poppler_document_get_page (pdf_document->document, page);
 285         poppler_page_get_size (poppler_page, width, height);
 286         g_object_unref (poppler_page);
 287 }
 288
 289 static char *
 290 pdf_document_get_page_label (EvDocument *document,
 291                              int         page)
 292 {
 293         PopplerPage *poppler_page;
 294         char *label = NULL;
 295
 296         poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
 297                                                   page);
 298
 299         g_object_get (G_OBJECT (poppler_page),
 300                       "label", &label,
 301                       NULL);
 302         g_object_unref (poppler_page);
 303
 304         return label;
 305 }
 306
 307 static gboolean
 308 pdf_document_has_attachments (EvDocument *document)
 309 {
 310         PdfDocument *pdf_document;
 311
 312         pdf_document = PDF_DOCUMENT (document);
 313
 314         return poppler_document_has_attachments (pdf_document->document);
 315 }
 316
 317 struct SaveToBufferData {
 318         gchar *buffer;
 319         gsize len, max;
 320 };
 321
 322 static gboolean
 323 attachment_save_to_buffer_callback (const gchar  *buf,
 324                                     gsize         count,
 325                                     gpointer      user_data,
 326                                     GError      **error)
 327 {
 328         struct SaveToBufferData *sdata = (SaveToBufferData *)user_data;
 329         gchar *new_buffer;
 330         gsize new_max;
 331
 332         if (sdata->len + count > sdata->max) {
 333                 new_max = MAX (sdata->max * 2, sdata->len + count);
 334                 new_buffer = (gchar *)g_realloc (sdata->buffer, new_max);
 335
 336                 sdata->buffer = new_buffer;
 337                 sdata->max = new_max;
 338         }
 339
 340         memcpy (sdata->buffer + sdata->len, buf, count);
 341         sdata->len += count;
 342
 343         return TRUE;
 344 }
 345
 346 static gboolean
 347 attachment_save_to_buffer (PopplerAttachment  *attachment,
 348                            gchar             **buffer,
 349                            gsize              *buffer_size,
 350                            GError            **error)
 351 {
 352         static const gint initial_max = 1024;
 353         struct SaveToBufferData sdata;
 354
 355         *buffer = NULL;
 356         *buffer_size = 0;
 357
 358         sdata.buffer = (gchar *) g_malloc (initial_max);
 359         sdata.max = initial_max;
 360         sdata.len = 0;
 361
 362         if (! poppler_attachment_save_to_callback (attachment,
 363                                                    attachment_save_to_buffer_callback,
 364                                                    &sdata,
 365                                                    error)) {
 366                 g_free (sdata.buffer);
 367                 return FALSE;
 368         }
 369
 370         *buffer = sdata.buffer;
 371         *buffer_size = sdata.len;
 372
 373         return TRUE;
 374 }
 375
 376 static GList *
 377 pdf_document_get_attachments (EvDocument *document)
 378 {
 379         PdfDocument *pdf_document;
 380         GList *attachments;
 381         GList *list;
 382         GList *retval = NULL;
 383
 384         pdf_document = PDF_DOCUMENT (document);
 385
 386         if (!pdf_document_has_attachments (document))
 387                 return NULL;
 388
 389         attachments = poppler_document_get_attachments (pdf_document->document);
 390
 391         for (list = attachments; list; list = list->next) {
 392                 PopplerAttachment *attachment;
 393                 EvAttachment *ev_attachment;
 394                 gchar *data = NULL;
 395                 gsize size;
 396                 GError *error = NULL;
 397
 398                 attachment = (PopplerAttachment *) list->data;
 399
 400                 if (attachment_save_to_buffer (attachment, &data, &size, &error)) {
 401                         ev_attachment = ev_attachment_new (attachment->name,
 402                                                            attachment->description,
 403                                                            attachment->mtime,
 404                                                            attachment->ctime,
 405                                                            size, data);
 406
 407                         retval = g_list_prepend (retval, ev_attachment);
 408                 } else {
 409                         if (error) {
 410                                 g_warning ("%s", error->message);
 411                                 g_error_free (error);
 412
 413                                 g_free (data);
 414                         }
 415                 }
 416
 417                 g_object_unref (attachment);
 418         }
 419
 420         return g_list_reverse (retval);
 421 }
 422
 423 static GdkPixbuf *
 424 pdf_document_render_pixbuf (EvDocument   *document,
 425                             EvRenderContext *rc)
 426 {
 427         PdfDocument *pdf_document;
 428         GdkPixbuf *pixbuf;
 429         double width_points, height_points;
 430         gint width, height;
 431
 432         pdf_document = PDF_DOCUMENT (document);
 433
 434         set_rc_data (pdf_document, rc);
 435
 436         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
 437
 438         if (rc->rotation == 90 || rc->rotation == 270) {
 439                 width = (int) ((height_points * rc->scale) + 0.5);
 440                 height = (int) ((width_points * rc->scale) + 0.5);
 441         } else {
 442                 width = (int) ((width_points * rc->scale) + 0.5);
 443                 height = (int) ((height_points * rc->scale) + 0.5);
 444         }
 445
 446         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 447                                  FALSE, 8,
 448                                  width, height);
 449
 450         poppler_page_render_to_pixbuf (POPPLER_PAGE (rc->data),
 451                                        0, 0,
 452                                        width, height,
 453                                        rc->scale,
 454                                        rc->rotation,
 455                                        pixbuf);
 456
 457
 458         return pixbuf;
 459 }
 460
 461 /* EvDocumentSecurity */
 462
 463 static gboolean
 464 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 465 {
 466         /* FIXME: do we really need to have this? */
 467         return FALSE;
 468 }
 469
 470 static void
 471 pdf_document_set_password (EvDocumentSecurity *document_security,
 472                            const char         *password)
 473 {
 474         PdfDocument *document = PDF_DOCUMENT (document_security);
 475
 476         if (document->password)
 477                 g_free (document->password);
 478
 479         document->password = g_strdup (password);
 480 }
 481
 482 static gboolean
 483 pdf_document_can_get_text (EvDocument *document)
 484 {
 485         return TRUE;
 486 }
 487
 488 static EvDocumentInfo *
 489 pdf_document_get_info (EvDocument *document)
 490 {
 491         EvDocumentInfo *info;
 492         PopplerPageLayout layout;
 493         PopplerPageMode mode;
 494         PopplerViewerPreferences view_prefs;
 495         PopplerPermissions permissions;
 496
 497         info = g_new0 (EvDocumentInfo, 1);
 498
 499         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 500                             EV_DOCUMENT_INFO_FORMAT |
 501                             EV_DOCUMENT_INFO_AUTHOR |
 502                             EV_DOCUMENT_INFO_SUBJECT |
 503                             EV_DOCUMENT_INFO_KEYWORDS |
 504                             EV_DOCUMENT_INFO_LAYOUT |
 505                             EV_DOCUMENT_INFO_START_MODE |
 506                             EV_DOCUMENT_INFO_PERMISSIONS |
 507                             EV_DOCUMENT_INFO_UI_HINTS |
 508                             EV_DOCUMENT_INFO_CREATOR |
 509                             EV_DOCUMENT_INFO_PRODUCER |
 510                             EV_DOCUMENT_INFO_CREATION_DATE |
 511                             EV_DOCUMENT_INFO_MOD_DATE |
 512                             EV_DOCUMENT_INFO_LINEARIZED |
 513                             EV_DOCUMENT_INFO_N_PAGES |
 514                             EV_DOCUMENT_INFO_SECURITY |
 515                             EV_DOCUMENT_INFO_PAPER_SIZE;
 516
 517         g_object_get (PDF_DOCUMENT (document)->document,
 518                       "title", &(info->title),
 519                       "format", &(info->format),
 520                       "author", &(info->author),
 521                       "subject", &(info->subject),
 522                       "keywords", &(info->keywords),
 523                       "page-mode", &mode,
 524                       "page-layout", &layout,
 525                       "viewer-preferences", &view_prefs,
 526                       "permissions", &permissions,
 527                       "creator", &(info->creator),
 528                       "producer", &(info->producer),
 529                       "creation-date", &(info->creation_date),
 530                       "mod-date", &(info->modified_date),
 531                       "linearized", &(info->linearized),
 532                       NULL);
 533
 534         pdf_document_get_page_size(document, 0,
 535                                    &(info->paper_width),
 536                                    &(info->paper_height));
 537
 538         // Convert to mm.
 539         info->paper_width = info->paper_width / 72.0f * 25.4f;
 540         info->paper_height = info->paper_height / 72.0f * 25.4f;
 541
 542         switch (layout) {
 543                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 544                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 545                         break;
 546                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 547                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 548                         break;
 549                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 550                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 551                         break;
 552                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 553                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 554                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 555                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 556                         break;
 557                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 558                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 559                         break;
 560                 default:
 561                         break;
 562         }
 563
 564         switch (mode) {
 565                 case POPPLER_PAGE_MODE_NONE:
 566                         info->mode = EV_DOCUMENT_MODE_NONE;
 567                         break;
 568                 case POPPLER_PAGE_MODE_USE_THUMBS:
 569                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 570                         break;
 571                 case POPPLER_PAGE_MODE_USE_OC:
 572                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 573                         break;
 574                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 575                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 576                         break;
 577                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 578                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 579                 default:
 580                         break;
 581         }
 582
 583         info->ui_hints = 0;
 584         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 585                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 586         }
 587         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 588                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 589         }
 590         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 591                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 592         }
 593         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 594                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 595         }
 596         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 597                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 598         }
 599         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 600                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 601         }
 602         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 603                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 604         }
 605
 606         info->permissions = 0;
 607         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 608                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 609         }
 610         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 611                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 612         }
 613         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 614                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 615         }
 616         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 617                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 618         }
 619
 620         info->n_pages = ev_document_get_n_pages (document);
 621
 622         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 623                 /* translators: this is the document security state */
 624                 info->security = g_strdup (_("Yes"));
 625         } else {
 626                 /* translators: this is the document security state */
 627                 info->security = g_strdup (_("No"));
 628         }
 629
 630         return info;
 631 }
 632
 633 static char *
 634 pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect)
 635 {
 636         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 637         PopplerPage *poppler_page;
 638         PopplerRectangle r;
 639         double height;
 640         char *text;
 641
 642         poppler_page = poppler_document_get_page (pdf_document->document, page);
 643         g_return_val_if_fail (poppler_page != NULL, NULL);
 644
 645         poppler_page_get_size (poppler_page, NULL, &height);
 646         r.x1 = rect->x1;
 647         r.y1 = height - rect->y2;
 648         r.x2 = rect->x2;
 649         r.y2 = height - rect->y1;
 650
 651         text = poppler_page_get_text (poppler_page, &r);
 652
 653         g_object_unref (poppler_page);
 654
 655         return text;
 656 }
 657
 658 static void
 659 pdf_document_document_iface_init (EvDocumentIface *iface)
 660 {
 661         iface->save = pdf_document_save;
 662         iface->load = pdf_document_load;
 663         iface->get_n_pages = pdf_document_get_n_pages;
 664         iface->get_page_size = pdf_document_get_page_size;
 665         iface->get_page_label = pdf_document_get_page_label;
 666         iface->has_attachments = pdf_document_has_attachments;
 667         iface->get_attachments = pdf_document_get_attachments;
 668         iface->render_pixbuf = pdf_document_render_pixbuf;
 669         iface->get_text = pdf_document_get_text;
 670         iface->can_get_text = pdf_document_can_get_text;
 671         iface->get_info = pdf_document_get_info;
 672 };
 673
 674 static void
 675 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 676 {
 677         iface->has_document_security = pdf_document_has_document_security;
 678         iface->set_password = pdf_document_set_password;
 679 }
 680
 681 static gdouble
 682 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 683 {
 684         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 685         int n_pages;
 686
 687         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 688
 689         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 690 }
 691
 692 static gboolean
 693 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 694                          int              n_pages)
 695 {
 696         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 697         gboolean result;
 698
 699         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 700
 701         if (pdf_document->font_info == NULL) {
 702                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 703         }
 704
 705         if (pdf_document->fonts_iter) {
 706                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 707         }
 708
 709         pdf_document->fonts_scanned_pages += n_pages;
 710
 711         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 712                                          &pdf_document->fonts_iter);
 713         if (!result) {
 714                 pdf_document->fonts_scanned_pages = 0;
 715                 poppler_font_info_free (pdf_document->font_info);
 716                 pdf_document->font_info = NULL;
 717         }
 718
 719         return result;
 720 }
 721
 722 static const char *
 723 font_type_to_string (PopplerFontType type)
 724 {
 725         switch (type) {
 726                 case POPPLER_FONT_TYPE_TYPE1:
 727                         return _("Type 1");
 728                 case POPPLER_FONT_TYPE_TYPE1C:
 729                         return _("Type 1C");
 730                 case POPPLER_FONT_TYPE_TYPE3:
 731                         return _("Type 3");
 732                 case POPPLER_FONT_TYPE_TRUETYPE:
 733                         return _("TrueType");
 734                 case POPPLER_FONT_TYPE_CID_TYPE0:
 735                         return _("Type 1 (CID)");
 736                 case POPPLER_FONT_TYPE_CID_TYPE0C:
 737                         return _("Type 1C (CID)");
 738                 case POPPLER_FONT_TYPE_CID_TYPE2:
 739                         return _("TrueType (CID)");
 740                 default:
 741                         return _("Unknown font type");
 742         }
 743 }
 744
 745 static void
 746 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 747                                GtkTreeModel    *model)
 748 {
 749         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 750         PopplerFontsIter *iter = pdf_document->fonts_iter;
 751
 752         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 753
 754         if (!iter)
 755                 return;
 756
 757         do {
 758                 GtkTreeIter list_iter;
 759                 const char *name;
 760                 const char *type;
 761                 const char *embedded;
 762                 char *details;
 763
 764                 name = poppler_fonts_iter_get_name (iter);
 765
 766                 if (name == NULL) {
 767                         name = _("No name");
 768                 }
 769
 770                 type = font_type_to_string (
 771                         poppler_fonts_iter_get_font_type (iter));
 772
 773                 if (poppler_fonts_iter_is_embedded (iter)) {
 774                         if (poppler_fonts_iter_is_subset (iter))
 775                                 embedded = _("Embedded subset");
 776                         else
 777                                 embedded = _("Embedded");
 778                 } else {
 779                         embedded = _("Not embedded");
 780                 }
 781
 782                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 783
 784                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 785                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 786                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 787                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 788                                     -1);
 789
 790                 g_free (details);
 791         } while (poppler_fonts_iter_next (iter));
 792 }
 793
 794 static void
 795 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 796 {
 797         iface->fill_model = pdf_document_fonts_fill_model;
 798         iface->scan = pdf_document_fonts_scan;
 799         iface->get_progress = pdf_document_fonts_get_progress;
 800 }
 801
 802 static gboolean
 803 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
 804 {
 805         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 806         PopplerIndexIter *iter;
 807
 808         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
 809
 810         iter = poppler_index_iter_new (pdf_document->document);
 811         if (iter == NULL)
 812                 return FALSE;
 813         poppler_index_iter_free (iter);
 814
 815         return TRUE;
 816 }
 817
 818 static EvLinkDest *
 819 ev_link_dest_from_dest (PdfDocument *pdf_document,
 820                         PopplerDest *dest)
 821 {
 822         EvLinkDest *ev_dest = NULL;
 823         const char *unimplemented_dest = NULL;
 824
 825         g_assert (dest != NULL);
 826
 827         switch (dest->type) {
 828                 case POPPLER_DEST_XYZ: {
 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_xyz (dest->page_num - 1,
 836                                                         dest->left,
 837                                                         height - dest->top,
 838                                                         dest->zoom);
 839                         g_object_unref (poppler_page);
 840                 }
 841                         break;
 842                 case POPPLER_DEST_FIT:
 843                         ev_dest = ev_link_dest_new_fit (dest->page_num - 1);
 844                         break;
 845                 case POPPLER_DEST_FITH: {
 846                         PopplerPage *poppler_page;
 847                         double height;
 848
 849                         poppler_page = poppler_document_get_page (pdf_document->document,
 850                                                                   MAX (0, dest->page_num - 1));
 851                         poppler_page_get_size (poppler_page, NULL, &height);
 852                         ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
 853                                                          height - dest->top);
 854                         g_object_unref (poppler_page);
 855                 }
 856                         break;
 857                 case POPPLER_DEST_FITV:
 858                         ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
 859                                                          dest->left);
 860                         break;
 861                 case POPPLER_DEST_FITR: {
 862                         PopplerPage *poppler_page;
 863                         double height;
 864
 865                         poppler_page = poppler_document_get_page (pdf_document->document,
 866                                                                   MAX (0, dest->page_num - 1));
 867                         poppler_page_get_size (poppler_page, NULL, &height);
 868                         ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
 869                                                          dest->left,
 870                                                          height - dest->bottom,
 871                                                          dest->right,
 872                                                          height - dest->top);
 873                         g_object_unref (poppler_page);
 874                 }
 875                         break;
 876                 case POPPLER_DEST_FITB:
 877                         unimplemented_dest = "POPPLER_DEST_FITB";
 878                         break;
 879                 case POPPLER_DEST_FITBH:
 880                         unimplemented_dest = "POPPLER_DEST_FITBH";
 881                         break;
 882                 case POPPLER_DEST_FITBV:
 883                         unimplemented_dest = "POPPLER_DEST_FITBV";
 884                         break;
 885                 case POPPLER_DEST_NAMED:
 886                         ev_dest = ev_link_dest_new_named (dest->named_dest);
 887                         break;
 888                 case POPPLER_DEST_UNKNOWN:
 889                         unimplemented_dest = "POPPLER_DEST_UNKNOWN";
 890                         break;
 891         }
 892
 893         if (unimplemented_dest) {
 894                 g_warning ("Unimplemented named action: %s, please post a "
 895                            "bug report in Evince bugzilla "
 896                            "(http://bugzilla.gnome.org) with a testcase.",
 897                            unimplemented_dest);
 898         }
 899
 900         if (!ev_dest)
 901                 ev_dest = ev_link_dest_new_page (dest->page_num - 1);
 902
 903         return ev_dest;
 904 }
 905
 906 static EvLink *
 907 ev_link_from_action (PdfDocument   *pdf_document,
 908                      PopplerAction *action)
 909 {
 910         EvLink       *link = NULL;
 911         EvLinkAction *ev_action = NULL;
 912         const char   *unimplemented_action = NULL;
 913
 914         switch (action->type) {
 915                 case POPPLER_ACTION_GOTO_DEST: {
 916                         EvLinkDest *dest;
 917
 918                         dest = ev_link_dest_from_dest (pdf_document, action->goto_dest.dest);
 919                         ev_action = ev_link_action_new_dest (dest);
 920                 }
 921                         break;
 922                 case POPPLER_ACTION_GOTO_REMOTE: {
 923                         EvLinkDest *dest;
 924
 925                         dest = ev_link_dest_from_dest (pdf_document, action->goto_remote.dest);
 926                         ev_action = ev_link_action_new_remote (dest,
 927                                                                action->goto_remote.file_name);
 928
 929                 }
 930                         break;
 931                 case POPPLER_ACTION_LAUNCH:
 932                         ev_action = ev_link_action_new_launch (action->launch.file_name,
 933                                                                action->launch.params);
 934                         break;
 935                 case POPPLER_ACTION_URI:
 936                         ev_action = ev_link_action_new_external_uri (action->uri.uri);
 937                         break;
 938                 case POPPLER_ACTION_NAMED:
 939                         ev_action = ev_link_action_new_named (action->named.named_dest);
 940                         break;
 941                 case POPPLER_ACTION_MOVIE:
 942                         unimplemented_action = "POPPLER_ACTION_MOVIE";
 943                         break;
 944                 case POPPLER_ACTION_UNKNOWN:
 945                         unimplemented_action = "POPPLER_ACTION_UNKNOWN";
 946         }
 947
 948         if (unimplemented_action) {
 949                 g_warning ("Unimplemented action: %s, please post a bug report with a testcase.",
 950                            unimplemented_action);
 951         }
 952
 953         link = ev_link_new (action->any.title, ev_action);
 954
 955         return link;
 956 }
 957
 958 static void
 959 build_tree (PdfDocument      *pdf_document,
 960             GtkTreeModel     *model,
 961             GtkTreeIter      *parent,
 962             PopplerIndexIter *iter)
 963 {
 964
 965         do {
 966                 GtkTreeIter tree_iter;
 967                 PopplerIndexIter *child;
 968                 PopplerAction *action;
 969                 EvLink *link = NULL;
 970                 gboolean expand;
 971                 char *title_markup;
 972
 973                 action = poppler_index_iter_get_action (iter);
 974                 expand = poppler_index_iter_is_open (iter);
 975
 976                 if (!action)
 977                         continue;
 978
 979                 switch (action->type) {
 980                         case POPPLER_ACTION_GOTO_DEST: {
 981                                 /* For bookmarks, solve named destinations */
 982                                 if (action->goto_dest.dest->type == POPPLER_DEST_NAMED) {
 983                                         PopplerDest *dest;
 984                                         EvLinkDest *ev_dest = NULL;
 985                                         EvLinkAction *ev_action;
 986
 987                                         dest = poppler_document_find_dest (pdf_document->document,
 988                                                                            action->goto_dest.dest->named_dest);
 989                                         if (!dest) {
 990                                                 link = ev_link_from_action (pdf_document, action);
 991                                                 break;
 992                                         }
 993
 994                                         ev_dest = ev_link_dest_from_dest (pdf_document, dest);
 995                                         poppler_dest_free (dest);
 996
 997                                         ev_action = ev_link_action_new_dest (ev_dest);
 998                                         link = ev_link_new (action->any.title, ev_action);
 999                                 } else {
1000                                         link = ev_link_from_action (pdf_document, action);
1001                                 }
1002                         }
1003                                 break;
1004                         default:
1005                                 link = ev_link_from_action (pdf_document, action);
1006                                 break;
1007                 }
1008
1009                 if (!link) {
1010                         poppler_action_free (action);
1011                         continue;
1012                 }
1013
1014                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
1015                 title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
1016
1017                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
1018                                     EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
1019                                     EV_DOCUMENT_LINKS_COLUMN_LINK, link,
1020                                     EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
1021                                     -1);
1022
1023                 g_free (title_markup);
1024                 g_object_unref (link);
1025
1026                 child = poppler_index_iter_get_child (iter);
1027                 if (child)
1028                         build_tree (pdf_document, model, &tree_iter, child);
1029                 poppler_index_iter_free (child);
1030                 poppler_action_free (action);
1031
1032         } while (poppler_index_iter_next (iter));
1033 }
1034
1035 static GtkTreeModel *
1036 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
1037 {
1038         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1039         GtkTreeModel *model = NULL;
1040         PopplerIndexIter *iter;
1041
1042         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
1043
1044         iter = poppler_index_iter_new (pdf_document->document);
1045         /* Create the model if we have items*/
1046         if (iter != NULL) {
1047                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
1048                                                              G_TYPE_STRING,
1049                                                              G_TYPE_OBJECT,
1050                                                              G_TYPE_BOOLEAN);
1051                 build_tree (pdf_document, model, NULL, iter);
1052                 poppler_index_iter_free (iter);
1053         }
1054
1055         return model;
1056 }
1057
1058 static GList *
1059 pdf_document_links_get_links (EvDocumentLinks *document_links,
1060                               gint             page)
1061 {
1062         PdfDocument *pdf_document;
1063         PopplerPage *poppler_page;
1064         GList *retval = NULL;
1065         GList *mapping_list;
1066         GList *list;
1067         double height;
1068
1069         pdf_document = PDF_DOCUMENT (document_links);
1070         poppler_page = poppler_document_get_page (pdf_document->document,
1071                                                   page);
1072         mapping_list = poppler_page_get_link_mapping (poppler_page);
1073         poppler_page_get_size (poppler_page, NULL, &height);
1074
1075         for (list = mapping_list; list; list = list->next) {
1076                 PopplerLinkMapping *link_mapping;
1077                 EvLinkMapping *ev_link_mapping;
1078
1079                 link_mapping = (PopplerLinkMapping *)list->data;
1080                 ev_link_mapping = g_new (EvLinkMapping, 1);
1081                 ev_link_mapping->link = ev_link_from_action (pdf_document,
1082                                                              link_mapping->action);
1083                 ev_link_mapping->x1 = link_mapping->area.x1;
1084                 ev_link_mapping->x2 = link_mapping->area.x2;
1085                 /* Invert this for X-style coordinates */
1086                 ev_link_mapping->y1 = height - link_mapping->area.y2;
1087                 ev_link_mapping->y2 = height - link_mapping->area.y1;
1088
1089                 retval = g_list_prepend (retval, ev_link_mapping);
1090         }
1091
1092         poppler_page_free_link_mapping (mapping_list);
1093         g_object_unref (poppler_page);
1094
1095         return g_list_reverse (retval);
1096 }
1097
1098 static EvLinkDest *
1099 pdf_document_links_find_link_dest (EvDocumentLinks  *document_links,
1100                                    const gchar      *link_name)
1101 {
1102         PdfDocument *pdf_document;
1103         PopplerDest *dest;
1104         EvLinkDest *ev_dest = NULL;
1105
1106         pdf_document = PDF_DOCUMENT (document_links);
1107         dest = poppler_document_find_dest (pdf_document->document,
1108                                            link_name);
1109         if (dest) {
1110                 ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1111                 poppler_dest_free (dest);
1112         }
1113
1114         return ev_dest;
1115 }
1116
1117 static void
1118 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
1119 {
1120         iface->has_document_links = pdf_document_links_has_document_links;
1121         iface->get_links_model = pdf_document_links_get_links_model;
1122         iface->get_links = pdf_document_links_get_links;
1123         iface->find_link_dest = pdf_document_links_find_link_dest;
1124 }
1125
1126 static GdkPixbuf *
1127 make_thumbnail_for_size (PdfDocument   *pdf_document,
1128                          gint           page,
1129                          int            rotation,
1130                          gint           size)
1131 {
1132         PopplerPage *poppler_page;
1133         GdkPixbuf *pixbuf;
1134         int width, height;
1135         double scale;
1136         gdouble unscaled_width, unscaled_height;
1137
1138         poppler_page = poppler_document_get_page (pdf_document->document, page);
1139         g_return_val_if_fail (poppler_page != NULL, NULL);
1140
1141         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page,
1142                                                 size, &width, &height);
1143         poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
1144         scale = width / unscaled_width;
1145
1146         /* rotate */
1147         if (rotation == 90 || rotation == 270) {
1148                 int temp;
1149                 temp = width;
1150                 width = height;
1151                 height = temp;
1152         }
1153
1154         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1155                                  width, height);
1156         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1157
1158         ev_document_fc_mutex_lock ();
1159         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1160                                        width, height,
1161                                        scale, rotation, pixbuf);
1162         ev_document_fc_mutex_unlock ();
1163
1164
1165         g_object_unref (poppler_page);
1166
1167         return pixbuf;
1168 }
1169
1170 static GdkPixbuf *
1171 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1172                                        gint                  page,
1173                                        gint                  rotation,
1174                                        gint                  size,
1175                                        gboolean              border)
1176 {
1177         PdfDocument *pdf_document;
1178         PopplerPage *poppler_page;
1179         GdkPixbuf *pixbuf;
1180         GdkPixbuf *border_pixbuf;
1181
1182         pdf_document = PDF_DOCUMENT (document_thumbnails);
1183
1184         poppler_page = poppler_document_get_page (pdf_document->document, page);
1185         g_return_val_if_fail (poppler_page != NULL, NULL);
1186
1187         pixbuf = poppler_page_get_thumbnail (poppler_page);
1188
1189         if (pixbuf == NULL) {
1190                 /* There is no provided thumbnail.  We need to make one. */
1191                 pixbuf = make_thumbnail_for_size (pdf_document, page, rotation, size);
1192         }
1193
1194         if (border) {
1195                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, rotation, pixbuf);
1196                 g_object_unref (pixbuf);
1197                 pixbuf = border_pixbuf;
1198         }
1199
1200         g_object_unref (poppler_page);
1201
1202         return pixbuf;
1203 }
1204
1205 static void
1206 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1207                                         gint                  page,
1208                                         gint                  size,
1209                                         gint                 *width,
1210                                         gint                 *height)
1211 {
1212         PdfDocument *pdf_document;
1213         PopplerPage *poppler_page;
1214         gint has_thumb;
1215
1216         pdf_document = PDF_DOCUMENT (document_thumbnails);
1217         poppler_page = poppler_document_get_page (pdf_document->document, page);
1218
1219         g_return_if_fail (width != NULL);
1220         g_return_if_fail (height != NULL);
1221         g_return_if_fail (poppler_page != NULL);
1222
1223         has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
1224
1225         if (!has_thumb) {
1226                 double page_width, page_height;
1227
1228                 poppler_page_get_size (poppler_page, &page_width, &page_height);
1229                 *width = size;
1230                 *height = (int) (size * page_height / page_width);
1231         }
1232         g_object_unref (poppler_page);
1233 }
1234
1235 static void
1236 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1237 {
1238         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1239         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1240 }
1241
1242
1243 static gboolean
1244 pdf_document_search_idle_callback (void *data)
1245 {
1246         PdfDocumentSearch *search = (PdfDocumentSearch*) data;
1247         PdfDocument *pdf_document = search->document;
1248         int n_pages;
1249         GList *matches;
1250         PopplerPage *page;
1251
1252         page = poppler_document_get_page (search->document->document,
1253                                           search->search_page);
1254
1255         ev_document_doc_mutex_lock ();
1256         matches = poppler_page_find_text (page, search->text);
1257         ev_document_doc_mutex_unlock ();
1258
1259         g_object_unref (page);
1260
1261         search->pages[search->search_page] = matches;
1262         ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document),
1263                                   search->search_page);
1264
1265         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document));
1266         search->search_page += 1;
1267         if (search->search_page == n_pages) {
1268                 /* wrap around */
1269                 search->search_page = 0;
1270         }
1271
1272         if (search->search_page != search->start_page) {
1273                 return TRUE;
1274         }
1275
1276         /* We're done. */
1277         search->idle = 0; /* will return FALSE to remove */
1278         return FALSE;
1279 }
1280
1281
1282 static PdfDocumentSearch *
1283 pdf_document_search_new (PdfDocument *pdf_document,
1284                          int          start_page,
1285                          const char  *text)
1286 {
1287         PdfDocumentSearch *search;
1288         int n_pages;
1289         int i;
1290
1291         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
1292
1293         search = g_new0 (PdfDocumentSearch, 1);
1294
1295         search->text = g_strdup (text);
1296         search->pages = g_new0 (GList *, n_pages);
1297         search->document = pdf_document;
1298
1299         /* We add at low priority so the progress bar repaints */
1300         search->idle = g_idle_add_full (G_PRIORITY_LOW,
1301                                         pdf_document_search_idle_callback,
1302                                         search,
1303                                         NULL);
1304
1305         search->start_page = start_page;
1306         search->search_page = start_page;
1307
1308         return search;
1309 }
1310
1311 static void
1312 pdf_document_find_begin (EvDocumentFind   *document,
1313                          int               page,
1314                          const char       *search_string,
1315                          gboolean          case_sensitive)
1316 {
1317         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1318
1319         /* FIXME handle case_sensitive (right now XPDF
1320          * code is always case insensitive for ASCII
1321          * and case sensitive for all other languaages)
1322          */
1323
1324         if (pdf_document->search &&
1325             strcmp (search_string, pdf_document->search->text) == 0)
1326                 return;
1327
1328         if (pdf_document->search)
1329                 pdf_document_search_free (pdf_document->search);
1330
1331         pdf_document->search = pdf_document_search_new (pdf_document,
1332                                                         page,
1333                                                         search_string);
1334 }
1335
1336 static int
1337 pdf_document_find_get_n_results (EvDocumentFind *document_find, int page)
1338 {
1339         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1340
1341         if (search) {
1342                 return g_list_length (search->pages[page]);
1343         } else {
1344                 return 0;
1345         }
1346 }
1347
1348 static gboolean
1349 pdf_document_find_get_result (EvDocumentFind *document_find,
1350                               int             page,
1351                               int             n_result,
1352                               EvRectangle    *rectangle)
1353 {
1354         PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
1355         PdfDocumentSearch *search = pdf_document->search;
1356         PopplerPage *poppler_page;
1357         PopplerRectangle *r;
1358         double height;
1359
1360         if (search == NULL)
1361                 return FALSE;
1362
1363         r = (PopplerRectangle *) g_list_nth_data (search->pages[page],
1364                                                   n_result);
1365         if (r == NULL)
1366                 return FALSE;
1367
1368         poppler_page = poppler_document_get_page (pdf_document->document, page);
1369         poppler_page_get_size (poppler_page, NULL, &height);
1370         rectangle->x1 = r->x1;
1371         rectangle->y1 = height - r->y2;
1372         rectangle->x2 = r->x2;
1373         rectangle->y2 = height - r->y1;
1374         g_object_unref (poppler_page);
1375
1376         return TRUE;
1377 }
1378
1379 static int
1380 pdf_document_find_page_has_results (EvDocumentFind *document_find,
1381                                     int             page)
1382 {
1383         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1384
1385         return search && search->pages[page] != NULL;
1386 }
1387
1388 static double
1389 pdf_document_find_get_progress (EvDocumentFind *document_find)
1390 {
1391         PdfDocumentSearch *search;
1392         int n_pages, pages_done;
1393
1394         search = PDF_DOCUMENT (document_find)->search;
1395
1396         if (search == NULL) {
1397                 return 0;
1398         }
1399
1400         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find));
1401         if (search->search_page > search->start_page) {
1402                 pages_done = search->search_page - search->start_page + 1;
1403         } else if (search->search_page == search->start_page) {
1404                 pages_done = n_pages;
1405         } else {
1406                 pages_done = n_pages - search->start_page + search->search_page;
1407         }
1408
1409         return pages_done / (double) n_pages;
1410 }
1411
1412 static void
1413 pdf_document_find_cancel (EvDocumentFind *document)
1414 {
1415         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1416
1417         if (pdf_document->search) {
1418                 pdf_document_search_free (pdf_document->search);
1419                 pdf_document->search = NULL;
1420         }
1421 }
1422
1423 static void
1424 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1425 {
1426         iface->begin = pdf_document_find_begin;
1427         iface->get_n_results = pdf_document_find_get_n_results;
1428         iface->get_result = pdf_document_find_get_result;
1429         iface->page_has_results = pdf_document_find_page_has_results;
1430         iface->get_progress = pdf_document_find_get_progress;
1431         iface->cancel = pdf_document_find_cancel;
1432 }
1433
1434 static const gboolean supported_formats[] = {
1435         TRUE, /* EV_FILE_FORMAT_PS */
1436 #ifdef HAVE_CAIRO_PDF
1437 #ifdef HAVE_POPPLER_PAGE_RENDER
1438         TRUE, /* EV_FILE_FORMAT_PDF */
1439 #else
1440         FALSE, /* EV_FILE_FORMAT_PDF */
1441 #endif
1442 #endif
1443 };
1444
1445 static void
1446 pdf_print_context_free (PdfPrintContext *ctx)
1447 {
1448         if (!ctx)
1449                 return;
1450
1451         if (ctx->ps_file) {
1452                 poppler_ps_file_free (ctx->ps_file);
1453                 ctx->ps_file = NULL;
1454         }
1455 #ifdef HAVE_CAIRO_PDF
1456         if (ctx->pdf_cairo) {
1457                 cairo_destroy (ctx->pdf_cairo);
1458                 ctx->pdf_cairo = NULL;
1459         }
1460 #endif
1461         g_free (ctx);
1462 }
1463
1464 static gboolean
1465 pdf_document_file_exporter_format_supported (EvFileExporter      *exporter,
1466                                              EvFileExporterFormat format)
1467 {
1468         return supported_formats[format];
1469 }
1470
1471 static void
1472 pdf_document_file_exporter_begin (EvFileExporter      *exporter,
1473                                   EvFileExporterFormat format,
1474                                   const char          *filename,
1475                                   int                  first_page,
1476                                   int                  last_page,
1477                                   double               width,
1478                                   double               height,
1479                                   gboolean             duplex)
1480 {
1481         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1482         PdfPrintContext *ctx;
1483
1484         if (pdf_document->print_ctx)
1485                 pdf_print_context_free (pdf_document->print_ctx);
1486         pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
1487         ctx = pdf_document->print_ctx;
1488         ctx->format = format;
1489
1490         switch (format) {
1491                 case EV_FILE_FORMAT_PS:
1492                         ctx->ps_file = poppler_ps_file_new (pdf_document->document,
1493                                                             filename, first_page,
1494                                                             last_page - first_page + 1);
1495                         poppler_ps_file_set_paper_size (ctx->ps_file, width, height);
1496                         poppler_ps_file_set_duplex (ctx->ps_file, duplex);
1497
1498                         break;
1499                 case EV_FILE_FORMAT_PDF: {
1500 #ifdef HAVE_CAIRO_PDF
1501                         cairo_surface_t *surface;
1502
1503                         surface = cairo_pdf_surface_create (filename, width, height);
1504                         ctx->pdf_cairo = cairo_create (surface);
1505                         cairo_surface_destroy (surface);
1506 #endif
1507                 }
1508                         break;
1509                 default:
1510                         g_assert_not_reached ();
1511         }
1512 }
1513
1514 static void
1515 pdf_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
1516 {
1517         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1518         PdfPrintContext *ctx = pdf_document->print_ctx;
1519         PopplerPage *poppler_page;
1520
1521         g_return_if_fail (pdf_document->print_ctx != NULL);
1522
1523         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1524
1525         switch (ctx->format) {
1526                 case EV_FILE_FORMAT_PS:
1527                         poppler_page_render_to_ps (poppler_page, ctx->ps_file);
1528                         break;
1529                 case EV_FILE_FORMAT_PDF:
1530 #ifdef HAVE_POPPLER_PAGE_RENDER
1531                         poppler_page_render (poppler_page, ctx->pdf_cairo);
1532 #endif
1533 #ifdef HAVE_CAIRO_PDF
1534                         cairo_show_page (ctx->pdf_cairo);
1535 #endif
1536                         break;
1537                 default:
1538                         g_assert_not_reached ();
1539         }
1540
1541         g_object_unref (poppler_page);
1542 }
1543
1544 static void
1545 pdf_document_file_exporter_end (EvFileExporter *exporter)
1546 {
1547         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1548
1549         pdf_print_context_free (pdf_document->print_ctx);
1550         pdf_document->print_ctx = NULL;
1551 }
1552
1553 static void
1554 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
1555 {
1556         iface->format_supported = pdf_document_file_exporter_format_supported;
1557         iface->begin = pdf_document_file_exporter_begin;
1558         iface->do_page = pdf_document_file_exporter_do_page;
1559         iface->end = pdf_document_file_exporter_end;
1560 }
1561
1562 static void
1563 pdf_selection_render_selection (EvSelection      *selection,
1564                                 EvRenderContext  *rc,
1565                                 GdkPixbuf       **pixbuf,
1566                                 EvRectangle      *points,
1567                                 EvRectangle      *old_points,
1568                                 GdkColor        *text,
1569                                 GdkColor        *base)
1570 {
1571         PdfDocument *pdf_document;
1572         double width_points, height_points;
1573         gint width, height;
1574
1575         pdf_document = PDF_DOCUMENT (selection);
1576         set_rc_data (pdf_document, rc);
1577
1578         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
1579         width = (int) ((width_points * rc->scale) + 0.5);
1580         height = (int) ((height_points * rc->scale) + 0.5);
1581
1582         if (*pixbuf == NULL) {
1583                 * pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1584                                            TRUE, 8,
1585                                            width, height);
1586         }
1587
1588         poppler_page_render_selection (POPPLER_PAGE (rc->data),
1589                                        rc->scale, rc->rotation, *pixbuf,
1590                                        (PopplerRectangle *)points,
1591                                        (PopplerRectangle *)old_points,
1592                                        text,
1593                                        base);
1594 }
1595
1596
1597 static GdkRegion *
1598 pdf_selection_get_selection_region (EvSelection     *selection,
1599                                     EvRenderContext *rc,
1600                                     EvRectangle     *points)
1601 {
1602         PdfDocument *pdf_document;
1603         GdkRegion *retval;
1604
1605         pdf_document = PDF_DOCUMENT (selection);
1606
1607         set_rc_data (pdf_document, rc);
1608
1609         retval = poppler_page_get_selection_region ((PopplerPage *)rc->data, rc->scale, (PopplerRectangle *) points);
1610
1611         return retval;
1612 }
1613
1614 static GdkRegion *
1615 pdf_selection_get_selection_map (EvSelection     *selection,
1616                                  EvRenderContext *rc)
1617 {
1618         PdfDocument *pdf_document;
1619         PopplerPage *poppler_page;
1620         PopplerRectangle points;
1621         GdkRegion *retval;
1622
1623         pdf_document = PDF_DOCUMENT (selection);
1624         poppler_page = poppler_document_get_page (pdf_document->document,
1625                                                   rc->page);
1626
1627         points.x1 = 0.0;
1628         points.y1 = 0.0;
1629         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
1630         retval = poppler_page_get_selection_region (poppler_page, 1.0, &points);
1631         g_object_unref (poppler_page);
1632
1633         return retval;
1634 }
1635
1636 static void
1637 pdf_selection_iface_init (EvSelectionIface *iface)
1638 {
1639         iface->render_selection = pdf_selection_render_selection;
1640         iface->get_selection_region = pdf_selection_get_selection_region;
1641         iface->get_selection_map = pdf_selection_get_selection_map;
1642 }
1643
1644 /* Page Transitions */
1645 static gdouble
1646 pdf_document_get_page_duration (EvDocumentTransition *trans,
1647                                 gint                  page)
1648 {
1649 #ifdef HAVE_POPPLER_PAGE_GET_DURATION
1650         PdfDocument *pdf_document;
1651         PopplerPage *poppler_page;
1652         gdouble      duration = -1;
1653
1654         pdf_document = PDF_DOCUMENT (trans);
1655         poppler_page = poppler_document_get_page (pdf_document->document, page);
1656         if (!poppler_page)
1657                 return -1;
1658
1659         duration = poppler_page_get_duration (poppler_page);
1660         g_object_unref (poppler_page);
1661
1662         return duration;
1663 #else
1664         return -1;
1665 #endif /* HAVE_POPPLER_PAGE_GET_DURATION */
1666 }
1667
1668 static void
1669 pdf_document_page_transition_iface_init (EvDocumentTransitionIface *iface)
1670 {
1671         iface->get_page_duration = pdf_document_get_page_duration;
1672 }
1673
1674 PdfDocument *
1675 pdf_document_new (void)
1676 {
1677         return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
1678 }