backend/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-images.h"
  39 #include "ev-document-fonts.h"
  40 #include "ev-document-security.h"
  41 #include "ev-document-thumbnails.h"
  42 #include "ev-document-transition.h"
  43 #include "ev-selection.h"
  44 #include "ev-attachment.h"
  45 #include "ev-image.h"
  46
  47 typedef struct {
  48         PdfDocument *document;
  49         char *text;
  50         GList **pages;
  51         guint idle;
  52         int start_page;
  53         int search_page;
  54 } PdfDocumentSearch;
  55
  56 typedef struct {
  57         EvFileExporterFormat format;
  58         PopplerPSFile *ps_file;
  59 #ifdef HAVE_CAIRO_PDF
  60         cairo_t *pdf_cairo;
  61 #endif
  62 } PdfPrintContext;
  63
  64 struct _PdfDocumentClass
  65 {
  66         GObjectClass parent_class;
  67 };
  68
  69 struct _PdfDocument
  70 {
  71         GObject parent_instance;
  72
  73         PopplerDocument *document;
  74         gchar *password;
  75
  76         PopplerFontInfo *font_info;
  77         PopplerFontsIter *fonts_iter;
  78         int fonts_scanned_pages;
  79
  80         PdfDocumentSearch *search;
  81         PdfPrintContext *print_ctx;
  82 };
  83
  84 static void pdf_document_document_iface_init            (EvDocumentIface           *iface);
  85 static void pdf_document_security_iface_init            (EvDocumentSecurityIface   *iface);
  86 static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
  87 static void pdf_document_document_links_iface_init      (EvDocumentLinksIface      *iface);
  88 static void pdf_document_document_images_iface_init     (EvDocumentImagesIface     *iface);
  89 static void pdf_document_document_fonts_iface_init      (EvDocumentFontsIface      *iface);
  90 static void pdf_document_find_iface_init                (EvDocumentFindIface       *iface);
  91 static void pdf_document_file_exporter_iface_init       (EvFileExporterIface       *iface);
  92 static void pdf_selection_iface_init                    (EvSelectionIface          *iface);
  93 static void pdf_document_page_transition_iface_init     (EvDocumentTransitionIface *iface);
  94 static void pdf_document_thumbnails_get_dimensions      (EvDocumentThumbnails      *document_thumbnails,
  95                                                          EvRenderContext           *rc,
  96                                                          gint                      *width,
  97                                                          gint                      *height);
  98 static int  pdf_document_get_n_pages                    (EvDocument                *document);
  99
 100 static EvLinkDest *ev_link_dest_from_dest   (PdfDocument       *pdf_document,
 101                                              PopplerDest       *dest);
 102 static EvLink     *ev_link_from_action      (PdfDocument       *pdf_document,
 103                                              PopplerAction     *action);
 104 static void        pdf_document_search_free (PdfDocumentSearch *search);
 105 static void        pdf_print_context_free   (PdfPrintContext   *ctx);
 106
 107
 108 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
 109                          {
 110                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
 111                                                         pdf_document_document_iface_init);
 112                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
 113                                                         pdf_document_security_iface_init);
 114                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
 115                                                         pdf_document_document_thumbnails_iface_init);
 116                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
 117                                                         pdf_document_document_links_iface_init);
 118                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_IMAGES,
 119                                                         pdf_document_document_images_iface_init);
 120                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
 121                                                         pdf_document_document_fonts_iface_init);
 122                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
 123                                                         pdf_document_find_iface_init);
 124                                  G_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER,
 125                                                         pdf_document_file_exporter_iface_init);
 126                                  G_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 127                                                         pdf_selection_iface_init);
 128                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_TRANSITION,
 129                                                         pdf_document_page_transition_iface_init);
 130                          });
 131
 132
 133 static void
 134 set_rc_data (PdfDocument     *pdf_document,
 135              EvRenderContext *rc)
 136 {
 137         if (rc->data == NULL) {
 138                 rc->data = poppler_document_get_page (pdf_document->document,
 139                                                       rc->page);
 140                 rc->destroy = g_object_unref;
 141         } else {
 142                 g_assert (rc->page == poppler_page_get_index (POPPLER_PAGE (rc->data)));
 143         }
 144 }
 145
 146 static void
 147 pdf_document_search_free (PdfDocumentSearch   *search)
 148 {
 149         PdfDocument *pdf_document = search->document;
 150         int n_pages;
 151         int i;
 152
 153         if (search->idle != 0)
 154                 g_source_remove (search->idle);
 155
 156         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 157         for (i = 0; i < n_pages; i++) {
 158                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 159                 g_list_free (search->pages[i]);
 160         }
 161         g_free (search->pages);
 162
 163         g_free (search->text);
 164         g_free (search);
 165 }
 166
 167 static void
 168 pdf_document_dispose (GObject *object)
 169 {
 170         PdfDocument *pdf_document = PDF_DOCUMENT(object);
 171
 172         if (pdf_document->print_ctx) {
 173                 pdf_print_context_free (pdf_document->print_ctx);
 174                 pdf_document->print_ctx = NULL;
 175         }
 176
 177         if (pdf_document->search) {
 178                 pdf_document_search_free (pdf_document->search);
 179                 pdf_document->search = NULL;
 180         }
 181
 182         if (pdf_document->document) {
 183                 g_object_unref (pdf_document->document);
 184         }
 185
 186         if (pdf_document->font_info) {
 187                 poppler_font_info_free (pdf_document->font_info);
 188         }
 189
 190         if (pdf_document->fonts_iter) {
 191                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 192         }
 193
 194         G_OBJECT_CLASS (pdf_document_parent_class)->dispose (object);
 195 }
 196
 197 static void
 198 pdf_document_class_init (PdfDocumentClass *klass)
 199 {
 200         GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
 201
 202         g_object_class->dispose = pdf_document_dispose;
 203 }
 204
 205 static void
 206 pdf_document_init (PdfDocument *pdf_document)
 207 {
 208         pdf_document->password = NULL;
 209 }
 210
 211 static void
 212 convert_error (GError  *poppler_error,
 213                GError **error)
 214 {
 215         if (poppler_error == NULL)
 216                 return;
 217
 218         if (poppler_error->domain == POPPLER_ERROR) {
 219                 /* convert poppler errors into EvDocument errors */
 220                 gint code = EV_DOCUMENT_ERROR_INVALID;
 221                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 222                         code = EV_DOCUMENT_ERROR_INVALID;
 223                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 224                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 225
 226
 227                 g_set_error (error,
 228                              EV_DOCUMENT_ERROR,
 229                              code,
 230                              poppler_error->message,
 231                              NULL);
 232         } else {
 233                 g_propagate_error (error, poppler_error);
 234         }
 235 }
 236
 237
 238 /* EvDocument */
 239 static gboolean
 240 pdf_document_save (EvDocument  *document,
 241                    const char  *uri,
 242                    GError     **error)
 243 {
 244         gboolean retval;
 245         GError *poppler_error = NULL;
 246
 247         retval = poppler_document_save (PDF_DOCUMENT (document)->document,
 248                                         uri,
 249                                         &poppler_error);
 250         if (! retval)
 251                 convert_error (poppler_error, error);
 252
 253         return retval;
 254 }
 255
 256 static gboolean
 257 pdf_document_load (EvDocument   *document,
 258                    const char   *uri,
 259                    GError      **error)
 260 {
 261         GError *poppler_error = NULL;
 262         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 263
 264         pdf_document->document =
 265                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 266
 267         if (pdf_document->document == NULL) {
 268                 convert_error (poppler_error, error);
 269                 return FALSE;
 270         }
 271
 272         return TRUE;
 273 }
 274
 275 static int
 276 pdf_document_get_n_pages (EvDocument *document)
 277 {
 278         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 279 }
 280
 281 static void
 282 pdf_document_get_page_size (EvDocument   *document,
 283                             int           page,
 284                             double       *width,
 285                             double       *height)
 286 {
 287         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 288         PopplerPage *poppler_page;
 289
 290         poppler_page = poppler_document_get_page (pdf_document->document, page);
 291         poppler_page_get_size (poppler_page, width, height);
 292         g_object_unref (poppler_page);
 293 }
 294
 295 static char *
 296 pdf_document_get_page_label (EvDocument *document,
 297                              int         page)
 298 {
 299         PopplerPage *poppler_page;
 300         char *label = NULL;
 301
 302         poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
 303                                                   page);
 304
 305         g_object_get (G_OBJECT (poppler_page),
 306                       "label", &label,
 307                       NULL);
 308         g_object_unref (poppler_page);
 309
 310         return label;
 311 }
 312
 313 static gboolean
 314 pdf_document_has_attachments (EvDocument *document)
 315 {
 316         PdfDocument *pdf_document;
 317
 318         pdf_document = PDF_DOCUMENT (document);
 319
 320         return poppler_document_has_attachments (pdf_document->document);
 321 }
 322
 323 struct SaveToBufferData {
 324         gchar *buffer;
 325         gsize len, max;
 326 };
 327
 328 static gboolean
 329 attachment_save_to_buffer_callback (const gchar  *buf,
 330                                     gsize         count,
 331                                     gpointer      user_data,
 332                                     GError      **error)
 333 {
 334         struct SaveToBufferData *sdata = (SaveToBufferData *)user_data;
 335         gchar *new_buffer;
 336         gsize new_max;
 337
 338         if (sdata->len + count > sdata->max) {
 339                 new_max = MAX (sdata->max * 2, sdata->len + count);
 340                 new_buffer = (gchar *)g_realloc (sdata->buffer, new_max);
 341
 342                 sdata->buffer = new_buffer;
 343                 sdata->max = new_max;
 344         }
 345
 346         memcpy (sdata->buffer + sdata->len, buf, count);
 347         sdata->len += count;
 348
 349         return TRUE;
 350 }
 351
 352 static gboolean
 353 attachment_save_to_buffer (PopplerAttachment  *attachment,
 354                            gchar             **buffer,
 355                            gsize              *buffer_size,
 356                            GError            **error)
 357 {
 358         static const gint initial_max = 1024;
 359         struct SaveToBufferData sdata;
 360
 361         *buffer = NULL;
 362         *buffer_size = 0;
 363
 364         sdata.buffer = (gchar *) g_malloc (initial_max);
 365         sdata.max = initial_max;
 366         sdata.len = 0;
 367
 368         if (! poppler_attachment_save_to_callback (attachment,
 369                                                    attachment_save_to_buffer_callback,
 370                                                    &sdata,
 371                                                    error)) {
 372                 g_free (sdata.buffer);
 373                 return FALSE;
 374         }
 375
 376         *buffer = sdata.buffer;
 377         *buffer_size = sdata.len;
 378
 379         return TRUE;
 380 }
 381
 382 static GList *
 383 pdf_document_get_attachments (EvDocument *document)
 384 {
 385         PdfDocument *pdf_document;
 386         GList *attachments;
 387         GList *list;
 388         GList *retval = NULL;
 389
 390         pdf_document = PDF_DOCUMENT (document);
 391
 392         if (!pdf_document_has_attachments (document))
 393                 return NULL;
 394
 395         attachments = poppler_document_get_attachments (pdf_document->document);
 396
 397         for (list = attachments; list; list = list->next) {
 398                 PopplerAttachment *attachment;
 399                 EvAttachment *ev_attachment;
 400                 gchar *data = NULL;
 401                 gsize size;
 402                 GError *error = NULL;
 403
 404                 attachment = (PopplerAttachment *) list->data;
 405
 406                 if (attachment_save_to_buffer (attachment, &data, &size, &error)) {
 407                         ev_attachment = ev_attachment_new (attachment->name,
 408                                                            attachment->description,
 409                                                            attachment->mtime,
 410                                                            attachment->ctime,
 411                                                            size, data);
 412
 413                         retval = g_list_prepend (retval, ev_attachment);
 414                 } else {
 415                         if (error) {
 416                                 g_warning ("%s", error->message);
 417                                 g_error_free (error);
 418
 419                                 g_free (data);
 420                         }
 421                 }
 422
 423                 g_object_unref (attachment);
 424         }
 425
 426         return g_list_reverse (retval);
 427 }
 428
 429 static GdkPixbuf *
 430 pdf_document_render_pixbuf (EvDocument   *document,
 431                             EvRenderContext *rc)
 432 {
 433         PdfDocument *pdf_document;
 434         GdkPixbuf *pixbuf;
 435         double width_points, height_points;
 436         gint width, height;
 437
 438         pdf_document = PDF_DOCUMENT (document);
 439
 440         set_rc_data (pdf_document, rc);
 441
 442         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
 443
 444         if (rc->rotation == 90 || rc->rotation == 270) {
 445                 width = (int) ((height_points * rc->scale) + 0.5);
 446                 height = (int) ((width_points * rc->scale) + 0.5);
 447         } else {
 448                 width = (int) ((width_points * rc->scale) + 0.5);
 449                 height = (int) ((height_points * rc->scale) + 0.5);
 450         }
 451
 452         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 453                                  FALSE, 8,
 454                                  width, height);
 455
 456         poppler_page_render_to_pixbuf (POPPLER_PAGE (rc->data),
 457                                        0, 0,
 458                                        width, height,
 459                                        rc->scale,
 460                                        rc->rotation,
 461                                        pixbuf);
 462
 463
 464         return pixbuf;
 465 }
 466
 467 /* EvDocumentSecurity */
 468
 469 static gboolean
 470 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 471 {
 472         /* FIXME: do we really need to have this? */
 473         return FALSE;
 474 }
 475
 476 static void
 477 pdf_document_set_password (EvDocumentSecurity *document_security,
 478                            const char         *password)
 479 {
 480         PdfDocument *document = PDF_DOCUMENT (document_security);
 481
 482         if (document->password)
 483                 g_free (document->password);
 484
 485         document->password = g_strdup (password);
 486 }
 487
 488 static gboolean
 489 pdf_document_can_get_text (EvDocument *document)
 490 {
 491         return TRUE;
 492 }
 493
 494 static EvDocumentInfo *
 495 pdf_document_get_info (EvDocument *document)
 496 {
 497         EvDocumentInfo *info;
 498         PopplerPageLayout layout;
 499         PopplerPageMode mode;
 500         PopplerViewerPreferences view_prefs;
 501         PopplerPermissions permissions;
 502
 503         info = g_new0 (EvDocumentInfo, 1);
 504
 505         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 506                             EV_DOCUMENT_INFO_FORMAT |
 507                             EV_DOCUMENT_INFO_AUTHOR |
 508                             EV_DOCUMENT_INFO_SUBJECT |
 509                             EV_DOCUMENT_INFO_KEYWORDS |
 510                             EV_DOCUMENT_INFO_LAYOUT |
 511                             EV_DOCUMENT_INFO_START_MODE |
 512                             EV_DOCUMENT_INFO_PERMISSIONS |
 513                             EV_DOCUMENT_INFO_UI_HINTS |
 514                             EV_DOCUMENT_INFO_CREATOR |
 515                             EV_DOCUMENT_INFO_PRODUCER |
 516                             EV_DOCUMENT_INFO_CREATION_DATE |
 517                             EV_DOCUMENT_INFO_MOD_DATE |
 518                             EV_DOCUMENT_INFO_LINEARIZED |
 519                             EV_DOCUMENT_INFO_N_PAGES |
 520                             EV_DOCUMENT_INFO_SECURITY |
 521                             EV_DOCUMENT_INFO_PAPER_SIZE;
 522
 523         g_object_get (PDF_DOCUMENT (document)->document,
 524                       "title", &(info->title),
 525                       "format", &(info->format),
 526                       "author", &(info->author),
 527                       "subject", &(info->subject),
 528                       "keywords", &(info->keywords),
 529                       "page-mode", &mode,
 530                       "page-layout", &layout,
 531                       "viewer-preferences", &view_prefs,
 532                       "permissions", &permissions,
 533                       "creator", &(info->creator),
 534                       "producer", &(info->producer),
 535                       "creation-date", &(info->creation_date),
 536                       "mod-date", &(info->modified_date),
 537                       "linearized", &(info->linearized),
 538                       NULL);
 539
 540         pdf_document_get_page_size(document, 0,
 541                                    &(info->paper_width),
 542                                    &(info->paper_height));
 543
 544         // Convert to mm.
 545         info->paper_width = info->paper_width / 72.0f * 25.4f;
 546         info->paper_height = info->paper_height / 72.0f * 25.4f;
 547
 548         switch (layout) {
 549                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 550                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 551                         break;
 552                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 553                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 554                         break;
 555                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 556                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 557                         break;
 558                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 559                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 560                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 561                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 562                         break;
 563                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 564                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 565                         break;
 566                 default:
 567                         break;
 568         }
 569
 570         switch (mode) {
 571                 case POPPLER_PAGE_MODE_NONE:
 572                         info->mode = EV_DOCUMENT_MODE_NONE;
 573                         break;
 574                 case POPPLER_PAGE_MODE_USE_THUMBS:
 575                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 576                         break;
 577                 case POPPLER_PAGE_MODE_USE_OC:
 578                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 579                         break;
 580                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 581                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 582                         break;
 583                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 584                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 585                 default:
 586                         break;
 587         }
 588
 589         info->ui_hints = 0;
 590         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 591                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 592         }
 593         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 594                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 595         }
 596         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 597                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 598         }
 599         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 600                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 601         }
 602         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 603                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 604         }
 605         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 606                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 607         }
 608         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 609                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 610         }
 611
 612         info->permissions = 0;
 613         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 614                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 615         }
 616         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 617                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 618         }
 619         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 620                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 621         }
 622         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 623                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 624         }
 625
 626         info->n_pages = ev_document_get_n_pages (document);
 627
 628         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 629                 /* translators: this is the document security state */
 630                 info->security = g_strdup (_("Yes"));
 631         } else {
 632                 /* translators: this is the document security state */
 633                 info->security = g_strdup (_("No"));
 634         }
 635
 636         return info;
 637 }
 638
 639 static char *
 640 pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect)
 641 {
 642         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 643         PopplerPage *poppler_page;
 644         PopplerRectangle r;
 645         double height;
 646         char *text;
 647
 648         poppler_page = poppler_document_get_page (pdf_document->document, page);
 649         g_return_val_if_fail (poppler_page != NULL, NULL);
 650
 651         poppler_page_get_size (poppler_page, NULL, &height);
 652         r.x1 = rect->x1;
 653         r.y1 = height - rect->y2;
 654         r.x2 = rect->x2;
 655         r.y2 = height - rect->y1;
 656
 657         text = poppler_page_get_text (poppler_page, &r);
 658
 659         g_object_unref (poppler_page);
 660
 661         return text;
 662 }
 663
 664 static void
 665 pdf_document_document_iface_init (EvDocumentIface *iface)
 666 {
 667         iface->save = pdf_document_save;
 668         iface->load = pdf_document_load;
 669         iface->get_n_pages = pdf_document_get_n_pages;
 670         iface->get_page_size = pdf_document_get_page_size;
 671         iface->get_page_label = pdf_document_get_page_label;
 672         iface->has_attachments = pdf_document_has_attachments;
 673         iface->get_attachments = pdf_document_get_attachments;
 674         iface->render_pixbuf = pdf_document_render_pixbuf;
 675         iface->get_text = pdf_document_get_text;
 676         iface->can_get_text = pdf_document_can_get_text;
 677         iface->get_info = pdf_document_get_info;
 678 };
 679
 680 static void
 681 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 682 {
 683         iface->has_document_security = pdf_document_has_document_security;
 684         iface->set_password = pdf_document_set_password;
 685 }
 686
 687 static gdouble
 688 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 689 {
 690         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 691         int n_pages;
 692
 693         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 694
 695         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 696 }
 697
 698 static gboolean
 699 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 700                          int              n_pages)
 701 {
 702         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 703         gboolean result;
 704
 705         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 706
 707         if (pdf_document->font_info == NULL) {
 708                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 709         }
 710
 711         if (pdf_document->fonts_iter) {
 712                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 713         }
 714
 715         pdf_document->fonts_scanned_pages += n_pages;
 716
 717         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 718                                          &pdf_document->fonts_iter);
 719         if (!result) {
 720                 pdf_document->fonts_scanned_pages = 0;
 721                 poppler_font_info_free (pdf_document->font_info);
 722                 pdf_document->font_info = NULL;
 723         }
 724
 725         return result;
 726 }
 727
 728 static const char *
 729 font_type_to_string (PopplerFontType type)
 730 {
 731         switch (type) {
 732                 case POPPLER_FONT_TYPE_TYPE1:
 733                         return _("Type 1");
 734                 case POPPLER_FONT_TYPE_TYPE1C:
 735                         return _("Type 1C");
 736                 case POPPLER_FONT_TYPE_TYPE3:
 737                         return _("Type 3");
 738                 case POPPLER_FONT_TYPE_TRUETYPE:
 739                         return _("TrueType");
 740                 case POPPLER_FONT_TYPE_CID_TYPE0:
 741                         return _("Type 1 (CID)");
 742                 case POPPLER_FONT_TYPE_CID_TYPE0C:
 743                         return _("Type 1C (CID)");
 744                 case POPPLER_FONT_TYPE_CID_TYPE2:
 745                         return _("TrueType (CID)");
 746                 default:
 747                         return _("Unknown font type");
 748         }
 749 }
 750
 751 static void
 752 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 753                                GtkTreeModel    *model)
 754 {
 755         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 756         PopplerFontsIter *iter = pdf_document->fonts_iter;
 757
 758         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 759
 760         if (!iter)
 761                 return;
 762
 763         do {
 764                 GtkTreeIter list_iter;
 765                 const char *name;
 766                 const char *type;
 767                 const char *embedded;
 768                 char *details;
 769
 770                 name = poppler_fonts_iter_get_name (iter);
 771
 772                 if (name == NULL) {
 773                         name = _("No name");
 774                 }
 775
 776                 type = font_type_to_string (
 777                         poppler_fonts_iter_get_font_type (iter));
 778
 779                 if (poppler_fonts_iter_is_embedded (iter)) {
 780                         if (poppler_fonts_iter_is_subset (iter))
 781                                 embedded = _("Embedded subset");
 782                         else
 783                                 embedded = _("Embedded");
 784                 } else {
 785                         embedded = _("Not embedded");
 786                 }
 787
 788                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 789
 790                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 791                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 792                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 793                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 794                                     -1);
 795
 796                 g_free (details);
 797         } while (poppler_fonts_iter_next (iter));
 798 }
 799
 800 static void
 801 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 802 {
 803         iface->fill_model = pdf_document_fonts_fill_model;
 804         iface->scan = pdf_document_fonts_scan;
 805         iface->get_progress = pdf_document_fonts_get_progress;
 806 }
 807
 808 static gboolean
 809 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
 810 {
 811         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 812         PopplerIndexIter *iter;
 813
 814         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
 815
 816         iter = poppler_index_iter_new (pdf_document->document);
 817         if (iter == NULL)
 818                 return FALSE;
 819         poppler_index_iter_free (iter);
 820
 821         return TRUE;
 822 }
 823
 824 static EvLinkDest *
 825 ev_link_dest_from_dest (PdfDocument *pdf_document,
 826                         PopplerDest *dest)
 827 {
 828         EvLinkDest *ev_dest = NULL;
 829         const char *unimplemented_dest = NULL;
 830
 831         g_assert (dest != NULL);
 832
 833         switch (dest->type) {
 834                 case POPPLER_DEST_XYZ: {
 835                         PopplerPage *poppler_page;
 836                         double height;
 837
 838                         poppler_page = poppler_document_get_page (pdf_document->document,
 839                                                                   MAX (0, dest->page_num - 1));
 840                         poppler_page_get_size (poppler_page, NULL, &height);
 841                         ev_dest = ev_link_dest_new_xyz (dest->page_num - 1,
 842                                                         dest->left,
 843                                                         height - dest->top,
 844                                                         dest->zoom);
 845                         g_object_unref (poppler_page);
 846                 }
 847                         break;
 848                 case POPPLER_DEST_FIT:
 849                         ev_dest = ev_link_dest_new_fit (dest->page_num - 1);
 850                         break;
 851                 case POPPLER_DEST_FITH: {
 852                         PopplerPage *poppler_page;
 853                         double height;
 854
 855                         poppler_page = poppler_document_get_page (pdf_document->document,
 856                                                                   MAX (0, dest->page_num - 1));
 857                         poppler_page_get_size (poppler_page, NULL, &height);
 858                         ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
 859                                                          height - dest->top);
 860                         g_object_unref (poppler_page);
 861                 }
 862                         break;
 863                 case POPPLER_DEST_FITV:
 864                         ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
 865                                                          dest->left);
 866                         break;
 867                 case POPPLER_DEST_FITR: {
 868                         PopplerPage *poppler_page;
 869                         double height;
 870
 871                         poppler_page = poppler_document_get_page (pdf_document->document,
 872                                                                   MAX (0, dest->page_num - 1));
 873                         poppler_page_get_size (poppler_page, NULL, &height);
 874                         ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
 875                                                          dest->left,
 876                                                          height - dest->bottom,
 877                                                          dest->right,
 878                                                          height - dest->top);
 879                         g_object_unref (poppler_page);
 880                 }
 881                         break;
 882                 case POPPLER_DEST_FITB:
 883                         unimplemented_dest = "POPPLER_DEST_FITB";
 884                         break;
 885                 case POPPLER_DEST_FITBH:
 886                         unimplemented_dest = "POPPLER_DEST_FITBH";
 887                         break;
 888                 case POPPLER_DEST_FITBV:
 889                         unimplemented_dest = "POPPLER_DEST_FITBV";
 890                         break;
 891                 case POPPLER_DEST_NAMED:
 892                         ev_dest = ev_link_dest_new_named (dest->named_dest);
 893                         break;
 894                 case POPPLER_DEST_UNKNOWN:
 895                         unimplemented_dest = "POPPLER_DEST_UNKNOWN";
 896                         break;
 897         }
 898
 899         if (unimplemented_dest) {
 900                 g_warning ("Unimplemented named action: %s, please post a "
 901                            "bug report in Evince bugzilla "
 902                            "(http://bugzilla.gnome.org) with a testcase.",
 903                            unimplemented_dest);
 904         }
 905
 906         if (!ev_dest)
 907                 ev_dest = ev_link_dest_new_page (dest->page_num - 1);
 908
 909         return ev_dest;
 910 }
 911
 912 static EvLink *
 913 ev_link_from_action (PdfDocument   *pdf_document,
 914                      PopplerAction *action)
 915 {
 916         EvLink       *link = NULL;
 917         EvLinkAction *ev_action = NULL;
 918         const char   *unimplemented_action = NULL;
 919
 920         switch (action->type) {
 921                 case POPPLER_ACTION_GOTO_DEST: {
 922                         EvLinkDest *dest;
 923
 924                         dest = ev_link_dest_from_dest (pdf_document, action->goto_dest.dest);
 925                         ev_action = ev_link_action_new_dest (dest);
 926                 }
 927                         break;
 928                 case POPPLER_ACTION_GOTO_REMOTE: {
 929                         EvLinkDest *dest;
 930
 931                         dest = ev_link_dest_from_dest (pdf_document, action->goto_remote.dest);
 932                         ev_action = ev_link_action_new_remote (dest,
 933                                                                action->goto_remote.file_name);
 934
 935                 }
 936                         break;
 937                 case POPPLER_ACTION_LAUNCH:
 938                         ev_action = ev_link_action_new_launch (action->launch.file_name,
 939                                                                action->launch.params);
 940                         break;
 941                 case POPPLER_ACTION_URI:
 942                         ev_action = ev_link_action_new_external_uri (action->uri.uri);
 943                         break;
 944                 case POPPLER_ACTION_NAMED:
 945                         ev_action = ev_link_action_new_named (action->named.named_dest);
 946                         break;
 947                 case POPPLER_ACTION_MOVIE:
 948                         unimplemented_action = "POPPLER_ACTION_MOVIE";
 949                         break;
 950                 case POPPLER_ACTION_UNKNOWN:
 951                         unimplemented_action = "POPPLER_ACTION_UNKNOWN";
 952         }
 953
 954         if (unimplemented_action) {
 955                 g_warning ("Unimplemented action: %s, please post a bug report with a testcase.",
 956                            unimplemented_action);
 957         }
 958
 959         link = ev_link_new (action->any.title, ev_action);
 960
 961         return link;
 962 }
 963
 964 static void
 965 build_tree (PdfDocument      *pdf_document,
 966             GtkTreeModel     *model,
 967             GtkTreeIter      *parent,
 968             PopplerIndexIter *iter)
 969 {
 970
 971         do {
 972                 GtkTreeIter tree_iter;
 973                 PopplerIndexIter *child;
 974                 PopplerAction *action;
 975                 EvLink *link = NULL;
 976                 gboolean expand;
 977                 char *title_markup;
 978
 979                 action = poppler_index_iter_get_action (iter);
 980                 expand = poppler_index_iter_is_open (iter);
 981
 982                 if (!action)
 983                         continue;
 984
 985                 switch (action->type) {
 986                         case POPPLER_ACTION_GOTO_DEST: {
 987                                 /* For bookmarks, solve named destinations */
 988                                 if (action->goto_dest.dest->type == POPPLER_DEST_NAMED) {
 989                                         PopplerDest *dest;
 990                                         EvLinkDest *ev_dest = NULL;
 991                                         EvLinkAction *ev_action;
 992
 993                                         dest = poppler_document_find_dest (pdf_document->document,
 994                                                                            action->goto_dest.dest->named_dest);
 995                                         if (!dest) {
 996                                                 link = ev_link_from_action (pdf_document, action);
 997                                                 break;
 998                                         }
 999
1000                                         ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1001                                         poppler_dest_free (dest);
1002
1003                                         ev_action = ev_link_action_new_dest (ev_dest);
1004                                         link = ev_link_new (action->any.title, ev_action);
1005                                 } else {
1006                                         link = ev_link_from_action (pdf_document, action);
1007                                 }
1008                         }
1009                                 break;
1010                         default:
1011                                 link = ev_link_from_action (pdf_document, action);
1012                                 break;
1013                 }
1014
1015                 if (!link) {
1016                         poppler_action_free (action);
1017                         continue;
1018                 }
1019
1020                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
1021                 title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
1022
1023                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
1024                                     EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
1025                                     EV_DOCUMENT_LINKS_COLUMN_LINK, link,
1026                                     EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
1027                                     -1);
1028
1029                 g_free (title_markup);
1030                 g_object_unref (link);
1031
1032                 child = poppler_index_iter_get_child (iter);
1033                 if (child)
1034                         build_tree (pdf_document, model, &tree_iter, child);
1035                 poppler_index_iter_free (child);
1036                 poppler_action_free (action);
1037
1038         } while (poppler_index_iter_next (iter));
1039 }
1040
1041 static GtkTreeModel *
1042 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
1043 {
1044         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1045         GtkTreeModel *model = NULL;
1046         PopplerIndexIter *iter;
1047
1048         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
1049
1050         iter = poppler_index_iter_new (pdf_document->document);
1051         /* Create the model if we have items*/
1052         if (iter != NULL) {
1053                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
1054                                                              G_TYPE_STRING,
1055                                                              G_TYPE_OBJECT,
1056                                                              G_TYPE_BOOLEAN,
1057                                                              G_TYPE_STRING);
1058                 build_tree (pdf_document, model, NULL, iter);
1059                 poppler_index_iter_free (iter);
1060         }
1061
1062         return model;
1063 }
1064
1065 static GList *
1066 pdf_document_links_get_links (EvDocumentLinks *document_links,
1067                               gint             page)
1068 {
1069         PdfDocument *pdf_document;
1070         PopplerPage *poppler_page;
1071         GList *retval = NULL;
1072         GList *mapping_list;
1073         GList *list;
1074         double height;
1075
1076         pdf_document = PDF_DOCUMENT (document_links);
1077         poppler_page = poppler_document_get_page (pdf_document->document,
1078                                                   page);
1079         mapping_list = poppler_page_get_link_mapping (poppler_page);
1080         poppler_page_get_size (poppler_page, NULL, &height);
1081
1082         for (list = mapping_list; list; list = list->next) {
1083                 PopplerLinkMapping *link_mapping;
1084                 EvLinkMapping *ev_link_mapping;
1085
1086                 link_mapping = (PopplerLinkMapping *)list->data;
1087                 ev_link_mapping = g_new (EvLinkMapping, 1);
1088                 ev_link_mapping->link = ev_link_from_action (pdf_document,
1089                                                              link_mapping->action);
1090                 ev_link_mapping->x1 = link_mapping->area.x1;
1091                 ev_link_mapping->x2 = link_mapping->area.x2;
1092                 /* Invert this for X-style coordinates */
1093                 ev_link_mapping->y1 = height - link_mapping->area.y2;
1094                 ev_link_mapping->y2 = height - link_mapping->area.y1;
1095
1096                 retval = g_list_prepend (retval, ev_link_mapping);
1097         }
1098
1099         poppler_page_free_link_mapping (mapping_list);
1100         g_object_unref (poppler_page);
1101
1102         return g_list_reverse (retval);
1103 }
1104
1105 static EvLinkDest *
1106 pdf_document_links_find_link_dest (EvDocumentLinks  *document_links,
1107                                    const gchar      *link_name)
1108 {
1109         PdfDocument *pdf_document;
1110         PopplerDest *dest;
1111         EvLinkDest *ev_dest = NULL;
1112
1113         pdf_document = PDF_DOCUMENT (document_links);
1114         dest = poppler_document_find_dest (pdf_document->document,
1115                                            link_name);
1116         if (dest) {
1117                 ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1118                 poppler_dest_free (dest);
1119         }
1120
1121         return ev_dest;
1122 }
1123
1124 static void
1125 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
1126 {
1127         iface->has_document_links = pdf_document_links_has_document_links;
1128         iface->get_links_model = pdf_document_links_get_links_model;
1129         iface->get_links = pdf_document_links_get_links;
1130         iface->find_link_dest = pdf_document_links_find_link_dest;
1131 }
1132
1133 static GList *
1134 pdf_document_images_get_images (EvDocumentImages *document_images,
1135                                 gint              page)
1136 {
1137         GList *retval = NULL;
1138         PdfDocument *pdf_document;
1139         PopplerPage *poppler_page;
1140         GList *mapping_list;
1141         GList *list;
1142
1143         pdf_document = PDF_DOCUMENT (document_images);
1144         poppler_page = poppler_document_get_page (pdf_document->document, page);
1145         mapping_list = poppler_page_get_image_mapping (poppler_page);
1146
1147         for (list = mapping_list; list; list = list->next) {
1148                 PopplerImageMapping *image_mapping;
1149                 EvImageMapping *ev_image_mapping;
1150
1151                 image_mapping = (PopplerImageMapping *)list->data;
1152
1153                 ev_image_mapping = g_new (EvImageMapping, 1);
1154
1155                 ev_image_mapping->image = ev_image_new_from_pixbuf (image_mapping->image);
1156                 ev_image_mapping->x1 = image_mapping->area.x1;
1157                 ev_image_mapping->x2 = image_mapping->area.x2;
1158                 ev_image_mapping->y1 = image_mapping->area.y1;
1159                 ev_image_mapping->y2 = image_mapping->area.y2;
1160
1161                 retval = g_list_prepend (retval, ev_image_mapping);
1162         }
1163
1164         poppler_page_free_image_mapping (mapping_list);
1165         g_object_unref (poppler_page);
1166
1167         return retval;
1168 }
1169
1170 static void
1171 pdf_document_document_images_iface_init (EvDocumentImagesIface *iface)
1172 {
1173         iface->get_images = pdf_document_images_get_images;
1174 }
1175
1176 static GdkPixbuf *
1177 make_thumbnail_for_page (PdfDocument     *pdf_document,
1178                          PopplerPage     *poppler_page,
1179                          EvRenderContext *rc)
1180 {
1181         GdkPixbuf *pixbuf;
1182         int width, height;
1183
1184         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document),
1185                                                 rc, &width, &height);
1186
1187         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1188                                  width, height);
1189         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1190
1191         ev_document_fc_mutex_lock ();
1192         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1193                                        width, height,
1194                                        rc->scale, rc->rotation, pixbuf);
1195         ev_document_fc_mutex_unlock ();
1196
1197         return pixbuf;
1198 }
1199
1200 static GdkPixbuf *
1201 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1202                                        EvRenderContext      *rc,
1203                                        gboolean              border)
1204 {
1205         PdfDocument *pdf_document;
1206         PopplerPage *poppler_page;
1207         GdkPixbuf *pixbuf;
1208         GdkPixbuf *border_pixbuf;
1209
1210         pdf_document = PDF_DOCUMENT (document_thumbnails);
1211
1212         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1213         g_return_val_if_fail (poppler_page != NULL, NULL);
1214
1215         pixbuf = poppler_page_get_thumbnail (poppler_page);
1216         if (!pixbuf) {
1217                 /* There is no provided thumbnail.  We need to make one. */
1218                 pixbuf = make_thumbnail_for_page (pdf_document, poppler_page, rc);
1219         }
1220
1221         if (border) {
1222                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
1223                 g_object_unref (pixbuf);
1224                 pixbuf = border_pixbuf;
1225         }
1226
1227         g_object_unref (poppler_page);
1228
1229         return pixbuf;
1230 }
1231
1232 static void
1233 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1234                                         EvRenderContext      *rc,
1235                                         gint                 *width,
1236                                         gint                 *height)
1237 {
1238         PdfDocument *pdf_document;
1239         PopplerPage *poppler_page;
1240         gint has_thumb;
1241
1242         pdf_document = PDF_DOCUMENT (document_thumbnails);
1243         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1244
1245         g_return_if_fail (poppler_page != NULL);
1246
1247         has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
1248
1249         if (!has_thumb) {
1250                 double page_width, page_height;
1251
1252                 poppler_page_get_size (poppler_page, &page_width, &page_height);
1253
1254                 *width = (gint) (page_width * rc->scale);
1255                 *height = (gint) (page_height * rc->scale);
1256         }
1257
1258         if (rc->rotation == 90 || rc->rotation == 270) {
1259                 gint  temp;
1260
1261                 temp = *width;
1262                 *width = *height;
1263                 *height = temp;
1264         }
1265
1266         g_object_unref (poppler_page);
1267 }
1268
1269 static void
1270 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1271 {
1272         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1273         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1274 }
1275
1276
1277 static gboolean
1278 pdf_document_search_idle_callback (void *data)
1279 {
1280         PdfDocumentSearch *search = (PdfDocumentSearch*) data;
1281         PdfDocument *pdf_document = search->document;
1282         int n_pages;
1283         GList *matches;
1284         PopplerPage *page;
1285
1286         page = poppler_document_get_page (search->document->document,
1287                                           search->search_page);
1288
1289         ev_document_doc_mutex_lock ();
1290         matches = poppler_page_find_text (page, search->text);
1291         ev_document_doc_mutex_unlock ();
1292
1293         g_object_unref (page);
1294
1295         search->pages[search->search_page] = matches;
1296         ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document),
1297                                   search->search_page);
1298
1299         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document));
1300         search->search_page += 1;
1301         if (search->search_page == n_pages) {
1302                 /* wrap around */
1303                 search->search_page = 0;
1304         }
1305
1306         if (search->search_page != search->start_page) {
1307                 return TRUE;
1308         }
1309
1310         /* We're done. */
1311         search->idle = 0; /* will return FALSE to remove */
1312         return FALSE;
1313 }
1314
1315
1316 static PdfDocumentSearch *
1317 pdf_document_search_new (PdfDocument *pdf_document,
1318                          int          start_page,
1319                          const char  *text)
1320 {
1321         PdfDocumentSearch *search;
1322         int n_pages;
1323         int i;
1324
1325         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
1326
1327         search = g_new0 (PdfDocumentSearch, 1);
1328
1329         search->text = g_strdup (text);
1330         search->pages = g_new0 (GList *, n_pages);
1331         search->document = pdf_document;
1332
1333         /* We add at low priority so the progress bar repaints */
1334         search->idle = g_idle_add_full (G_PRIORITY_LOW,
1335                                         pdf_document_search_idle_callback,
1336                                         search,
1337                                         NULL);
1338
1339         search->start_page = start_page;
1340         search->search_page = start_page;
1341
1342         return search;
1343 }
1344
1345 static void
1346 pdf_document_find_begin (EvDocumentFind   *document,
1347                          int               page,
1348                          const char       *search_string,
1349                          gboolean          case_sensitive)
1350 {
1351         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1352
1353         /* FIXME handle case_sensitive (right now XPDF
1354          * code is always case insensitive for ASCII
1355          * and case sensitive for all other languaages)
1356          */
1357
1358         if (pdf_document->search &&
1359             strcmp (search_string, pdf_document->search->text) == 0)
1360                 return;
1361
1362         if (pdf_document->search)
1363                 pdf_document_search_free (pdf_document->search);
1364
1365         pdf_document->search = pdf_document_search_new (pdf_document,
1366                                                         page,
1367                                                         search_string);
1368 }
1369
1370 static int
1371 pdf_document_find_get_n_results (EvDocumentFind *document_find, int page)
1372 {
1373         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1374
1375         if (search) {
1376                 return g_list_length (search->pages[page]);
1377         } else {
1378                 return 0;
1379         }
1380 }
1381
1382 static gboolean
1383 pdf_document_find_get_result (EvDocumentFind *document_find,
1384                               int             page,
1385                               int             n_result,
1386                               EvRectangle    *rectangle)
1387 {
1388         PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
1389         PdfDocumentSearch *search = pdf_document->search;
1390         PopplerPage *poppler_page;
1391         PopplerRectangle *r;
1392         double height;
1393
1394         if (search == NULL)
1395                 return FALSE;
1396
1397         r = (PopplerRectangle *) g_list_nth_data (search->pages[page],
1398                                                   n_result);
1399         if (r == NULL)
1400                 return FALSE;
1401
1402         poppler_page = poppler_document_get_page (pdf_document->document, page);
1403         poppler_page_get_size (poppler_page, NULL, &height);
1404         rectangle->x1 = r->x1;
1405         rectangle->y1 = height - r->y2;
1406         rectangle->x2 = r->x2;
1407         rectangle->y2 = height - r->y1;
1408         g_object_unref (poppler_page);
1409
1410         return TRUE;
1411 }
1412
1413 static int
1414 pdf_document_find_page_has_results (EvDocumentFind *document_find,
1415                                     int             page)
1416 {
1417         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1418
1419         return search && search->pages[page] != NULL;
1420 }
1421
1422 static double
1423 pdf_document_find_get_progress (EvDocumentFind *document_find)
1424 {
1425         PdfDocumentSearch *search;
1426         int n_pages, pages_done;
1427
1428         search = PDF_DOCUMENT (document_find)->search;
1429
1430         if (search == NULL) {
1431                 return 0;
1432         }
1433
1434         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find));
1435         if (search->search_page > search->start_page) {
1436                 pages_done = search->search_page - search->start_page + 1;
1437         } else if (search->search_page == search->start_page) {
1438                 pages_done = n_pages;
1439         } else {
1440                 pages_done = n_pages - search->start_page + search->search_page;
1441         }
1442
1443         return pages_done / (double) n_pages;
1444 }
1445
1446 static void
1447 pdf_document_find_cancel (EvDocumentFind *document)
1448 {
1449         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1450
1451         if (pdf_document->search) {
1452                 pdf_document_search_free (pdf_document->search);
1453                 pdf_document->search = NULL;
1454         }
1455 }
1456
1457 static void
1458 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1459 {
1460         iface->begin = pdf_document_find_begin;
1461         iface->get_n_results = pdf_document_find_get_n_results;
1462         iface->get_result = pdf_document_find_get_result;
1463         iface->page_has_results = pdf_document_find_page_has_results;
1464         iface->get_progress = pdf_document_find_get_progress;
1465         iface->cancel = pdf_document_find_cancel;
1466 }
1467
1468 static const gboolean supported_formats[] = {
1469         TRUE, /* EV_FILE_FORMAT_PS */
1470 #ifdef HAVE_CAIRO_PDF
1471 #ifdef HAVE_POPPLER_PAGE_RENDER
1472         TRUE, /* EV_FILE_FORMAT_PDF */
1473 #else
1474         FALSE, /* EV_FILE_FORMAT_PDF */
1475 #endif
1476 #endif
1477 };
1478
1479 static void
1480 pdf_print_context_free (PdfPrintContext *ctx)
1481 {
1482         if (!ctx)
1483                 return;
1484
1485         if (ctx->ps_file) {
1486                 poppler_ps_file_free (ctx->ps_file);
1487                 ctx->ps_file = NULL;
1488         }
1489 #ifdef HAVE_CAIRO_PDF
1490         if (ctx->pdf_cairo) {
1491                 cairo_destroy (ctx->pdf_cairo);
1492                 ctx->pdf_cairo = NULL;
1493         }
1494 #endif
1495         g_free (ctx);
1496 }
1497
1498 static gboolean
1499 pdf_document_file_exporter_format_supported (EvFileExporter      *exporter,
1500                                              EvFileExporterFormat format)
1501 {
1502         return supported_formats[format];
1503 }
1504
1505 static void
1506 pdf_document_file_exporter_begin (EvFileExporter      *exporter,
1507                                   EvFileExporterFormat format,
1508                                   const char          *filename,
1509                                   int                  first_page,
1510                                   int                  last_page,
1511                                   double               width,
1512                                   double               height,
1513                                   gboolean             duplex)
1514 {
1515         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1516         PdfPrintContext *ctx;
1517
1518         if (pdf_document->print_ctx)
1519                 pdf_print_context_free (pdf_document->print_ctx);
1520         pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
1521         ctx = pdf_document->print_ctx;
1522         ctx->format = format;
1523
1524         switch (format) {
1525                 case EV_FILE_FORMAT_PS:
1526                         ctx->ps_file = poppler_ps_file_new (pdf_document->document,
1527                                                             filename, first_page,
1528                                                             last_page - first_page + 1);
1529                         poppler_ps_file_set_paper_size (ctx->ps_file, width, height);
1530                         poppler_ps_file_set_duplex (ctx->ps_file, duplex);
1531
1532                         break;
1533                 case EV_FILE_FORMAT_PDF: {
1534 #ifdef HAVE_CAIRO_PDF
1535                         cairo_surface_t *surface;
1536
1537                         surface = cairo_pdf_surface_create (filename, width, height);
1538                         ctx->pdf_cairo = cairo_create (surface);
1539                         cairo_surface_destroy (surface);
1540 #endif
1541                 }
1542                         break;
1543                 default:
1544                         g_assert_not_reached ();
1545         }
1546 }
1547
1548 static void
1549 pdf_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
1550 {
1551         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1552         PdfPrintContext *ctx = pdf_document->print_ctx;
1553         PopplerPage *poppler_page;
1554
1555         g_return_if_fail (pdf_document->print_ctx != NULL);
1556
1557         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1558
1559         switch (ctx->format) {
1560                 case EV_FILE_FORMAT_PS:
1561                         poppler_page_render_to_ps (poppler_page, ctx->ps_file);
1562                         break;
1563                 case EV_FILE_FORMAT_PDF:
1564 #ifdef HAVE_CAIRO_PDF
1565                         cairo_save (ctx->pdf_cairo);
1566 #endif
1567 #ifdef HAVE_POPPLER_PAGE_RENDER
1568                         poppler_page_render (poppler_page, ctx->pdf_cairo);
1569 #endif
1570 #ifdef HAVE_CAIRO_PDF
1571                         cairo_show_page (ctx->pdf_cairo);
1572                         cairo_restore (ctx->pdf_cairo);
1573 #endif
1574                         break;
1575                 default:
1576                         g_assert_not_reached ();
1577         }
1578
1579         g_object_unref (poppler_page);
1580 }
1581
1582 static void
1583 pdf_document_file_exporter_end (EvFileExporter *exporter)
1584 {
1585         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1586
1587         pdf_print_context_free (pdf_document->print_ctx);
1588         pdf_document->print_ctx = NULL;
1589 }
1590
1591 static void
1592 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
1593 {
1594         iface->format_supported = pdf_document_file_exporter_format_supported;
1595         iface->begin = pdf_document_file_exporter_begin;
1596         iface->do_page = pdf_document_file_exporter_do_page;
1597         iface->end = pdf_document_file_exporter_end;
1598 }
1599
1600 static void
1601 pdf_selection_render_selection (EvSelection      *selection,
1602                                 EvRenderContext  *rc,
1603                                 GdkPixbuf       **pixbuf,
1604                                 EvRectangle      *points,
1605                                 EvRectangle      *old_points,
1606                                 GdkColor        *text,
1607                                 GdkColor        *base)
1608 {
1609         PdfDocument *pdf_document;
1610         double width_points, height_points;
1611         gint width, height;
1612
1613         pdf_document = PDF_DOCUMENT (selection);
1614         set_rc_data (pdf_document, rc);
1615
1616         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
1617         width = (int) ((width_points * rc->scale) + 0.5);
1618         height = (int) ((height_points * rc->scale) + 0.5);
1619
1620         if (*pixbuf == NULL) {
1621                 * pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1622                                            TRUE, 8,
1623                                            width, height);
1624         }
1625
1626         poppler_page_render_selection_to_pixbuf (POPPLER_PAGE (rc->data),
1627                                                  rc->scale, rc->rotation, *pixbuf,
1628                                                  (PopplerRectangle *)points,
1629                                                  (PopplerRectangle *)old_points,
1630                                                  POPPLER_SELECTION_NORMAL, /* SelectionStyle */
1631                                                  text,
1632                                                  base);
1633 }
1634
1635
1636 static GdkRegion *
1637 pdf_selection_get_selection_region (EvSelection     *selection,
1638                                     EvRenderContext *rc,
1639                                     EvRectangle     *points)
1640 {
1641         PdfDocument *pdf_document;
1642         GdkRegion *retval;
1643
1644         pdf_document = PDF_DOCUMENT (selection);
1645
1646         set_rc_data (pdf_document, rc);
1647
1648         retval = poppler_page_get_selection_region ((PopplerPage *)rc->data, rc->scale, (PopplerRectangle *) points);
1649
1650         return retval;
1651 }
1652
1653 static GdkRegion *
1654 pdf_selection_get_selection_map (EvSelection     *selection,
1655                                  EvRenderContext *rc)
1656 {
1657         PdfDocument *pdf_document;
1658         PopplerPage *poppler_page;
1659         PopplerRectangle points;
1660         GdkRegion *retval;
1661
1662         pdf_document = PDF_DOCUMENT (selection);
1663         poppler_page = poppler_document_get_page (pdf_document->document,
1664                                                   rc->page);
1665
1666         points.x1 = 0.0;
1667         points.y1 = 0.0;
1668         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
1669         retval = poppler_page_get_selection_region (poppler_page, 1.0, &points);
1670         g_object_unref (poppler_page);
1671
1672         return retval;
1673 }
1674
1675 static void
1676 pdf_selection_iface_init (EvSelectionIface *iface)
1677 {
1678         iface->render_selection = pdf_selection_render_selection;
1679         iface->get_selection_region = pdf_selection_get_selection_region;
1680         iface->get_selection_map = pdf_selection_get_selection_map;
1681 }
1682
1683 /* Page Transitions */
1684 static gdouble
1685 pdf_document_get_page_duration (EvDocumentTransition *trans,
1686                                 gint                  page)
1687 {
1688         PdfDocument *pdf_document;
1689         PopplerPage *poppler_page;
1690         gdouble      duration = -1;
1691
1692         pdf_document = PDF_DOCUMENT (trans);
1693         poppler_page = poppler_document_get_page (pdf_document->document, page);
1694         if (!poppler_page)
1695                 return -1;
1696
1697         duration = poppler_page_get_duration (poppler_page);
1698         g_object_unref (poppler_page);
1699
1700         return duration;
1701 }
1702
1703 static void
1704 pdf_document_page_transition_iface_init (EvDocumentTransitionIface *iface)
1705 {
1706         iface->get_page_duration = pdf_document_get_page_duration;
1707 }
1708
1709 PdfDocument *
1710 pdf_document_new (void)
1711 {
1712         return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
1713 }