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                                                          gint                       page,
  96                                                          gint                       size,
  97                                                          gint                      *width,
  98                                                          gint                      *height);
  99 static int  pdf_document_get_n_pages                    (EvDocument                *document);
 100
 101 static EvLinkDest *ev_link_dest_from_dest   (PdfDocument       *pdf_document,
 102                                              PopplerDest       *dest);
 103 static EvLink     *ev_link_from_action      (PdfDocument       *pdf_document,
 104                                              PopplerAction     *action);
 105 static void        pdf_document_search_free (PdfDocumentSearch *search);
 106 static void        pdf_print_context_free   (PdfPrintContext   *ctx);
 107
 108
 109 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
 110                          {
 111                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
 112                                                         pdf_document_document_iface_init);
 113                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
 114                                                         pdf_document_security_iface_init);
 115                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
 116                                                         pdf_document_document_thumbnails_iface_init);
 117                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
 118                                                         pdf_document_document_links_iface_init);
 119                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_IMAGES,
 120                                                         pdf_document_document_images_iface_init);
 121                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
 122                                                         pdf_document_document_fonts_iface_init);
 123                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
 124                                                         pdf_document_find_iface_init);
 125                                  G_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER,
 126                                                         pdf_document_file_exporter_iface_init);
 127                                  G_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 128                                                         pdf_selection_iface_init);
 129                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_TRANSITION,
 130                                                         pdf_document_page_transition_iface_init);
 131                          });
 132
 133
 134 static void
 135 set_rc_data (PdfDocument     *pdf_document,
 136              EvRenderContext *rc)
 137 {
 138         if (rc->data == NULL) {
 139                 rc->data = poppler_document_get_page (pdf_document->document,
 140                                                       rc->page);
 141                 rc->destroy = g_object_unref;
 142         } else {
 143                 g_assert (rc->page == poppler_page_get_index (POPPLER_PAGE (rc->data)));
 144         }
 145 }
 146
 147 static void
 148 pdf_document_search_free (PdfDocumentSearch   *search)
 149 {
 150         PdfDocument *pdf_document = search->document;
 151         int n_pages;
 152         int i;
 153
 154         if (search->idle != 0)
 155                 g_source_remove (search->idle);
 156
 157         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 158         for (i = 0; i < n_pages; i++) {
 159                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 160                 g_list_free (search->pages[i]);
 161         }
 162         g_free (search->pages);
 163
 164         g_free (search->text);
 165         g_free (search);
 166 }
 167
 168 static void
 169 pdf_document_dispose (GObject *object)
 170 {
 171         PdfDocument *pdf_document = PDF_DOCUMENT(object);
 172
 173         if (pdf_document->print_ctx) {
 174                 pdf_print_context_free (pdf_document->print_ctx);
 175                 pdf_document->print_ctx = NULL;
 176         }
 177
 178         if (pdf_document->search) {
 179                 pdf_document_search_free (pdf_document->search);
 180                 pdf_document->search = NULL;
 181         }
 182
 183         if (pdf_document->document) {
 184                 g_object_unref (pdf_document->document);
 185         }
 186
 187         if (pdf_document->font_info) {
 188                 poppler_font_info_free (pdf_document->font_info);
 189         }
 190
 191         if (pdf_document->fonts_iter) {
 192                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 193         }
 194 }
 195
 196 static void
 197 pdf_document_class_init (PdfDocumentClass *klass)
 198 {
 199         GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
 200
 201         g_object_class->dispose = pdf_document_dispose;
 202 }
 203
 204 static void
 205 pdf_document_init (PdfDocument *pdf_document)
 206 {
 207         pdf_document->password = NULL;
 208 }
 209
 210 static void
 211 convert_error (GError  *poppler_error,
 212                GError **error)
 213 {
 214         if (poppler_error == NULL)
 215                 return;
 216
 217         if (poppler_error->domain == POPPLER_ERROR) {
 218                 /* convert poppler errors into EvDocument errors */
 219                 gint code = EV_DOCUMENT_ERROR_INVALID;
 220                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 221                         code = EV_DOCUMENT_ERROR_INVALID;
 222                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 223                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 224
 225
 226                 g_set_error (error,
 227                              EV_DOCUMENT_ERROR,
 228                              code,
 229                              poppler_error->message,
 230                              NULL);
 231         } else {
 232                 g_propagate_error (error, poppler_error);
 233         }
 234 }
 235
 236
 237 /* EvDocument */
 238 static gboolean
 239 pdf_document_save (EvDocument  *document,
 240                    const char  *uri,
 241                    GError     **error)
 242 {
 243         gboolean retval;
 244         GError *poppler_error = NULL;
 245
 246         retval = poppler_document_save (PDF_DOCUMENT (document)->document,
 247                                         uri,
 248                                         &poppler_error);
 249         if (! retval)
 250                 convert_error (poppler_error, error);
 251
 252         return retval;
 253 }
 254
 255 static gboolean
 256 pdf_document_load (EvDocument   *document,
 257                    const char   *uri,
 258                    GError      **error)
 259 {
 260         GError *poppler_error = NULL;
 261         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 262
 263         pdf_document->document =
 264                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 265
 266         if (pdf_document->document == NULL) {
 267                 convert_error (poppler_error, error);
 268                 return FALSE;
 269         }
 270
 271         return TRUE;
 272 }
 273
 274 static int
 275 pdf_document_get_n_pages (EvDocument *document)
 276 {
 277         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 278 }
 279
 280 static void
 281 pdf_document_get_page_size (EvDocument   *document,
 282                             int           page,
 283                             double       *width,
 284                             double       *height)
 285 {
 286         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 287         PopplerPage *poppler_page;
 288
 289         poppler_page = poppler_document_get_page (pdf_document->document, page);
 290         poppler_page_get_size (poppler_page, width, height);
 291         g_object_unref (poppler_page);
 292 }
 293
 294 static char *
 295 pdf_document_get_page_label (EvDocument *document,
 296                              int         page)
 297 {
 298         PopplerPage *poppler_page;
 299         char *label = NULL;
 300
 301         poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
 302                                                   page);
 303
 304         g_object_get (G_OBJECT (poppler_page),
 305                       "label", &label,
 306                       NULL);
 307         g_object_unref (poppler_page);
 308
 309         return label;
 310 }
 311
 312 static gboolean
 313 pdf_document_has_attachments (EvDocument *document)
 314 {
 315         PdfDocument *pdf_document;
 316
 317         pdf_document = PDF_DOCUMENT (document);
 318
 319         return poppler_document_has_attachments (pdf_document->document);
 320 }
 321
 322 struct SaveToBufferData {
 323         gchar *buffer;
 324         gsize len, max;
 325 };
 326
 327 static gboolean
 328 attachment_save_to_buffer_callback (const gchar  *buf,
 329                                     gsize         count,
 330                                     gpointer      user_data,
 331                                     GError      **error)
 332 {
 333         struct SaveToBufferData *sdata = (SaveToBufferData *)user_data;
 334         gchar *new_buffer;
 335         gsize new_max;
 336
 337         if (sdata->len + count > sdata->max) {
 338                 new_max = MAX (sdata->max * 2, sdata->len + count);
 339                 new_buffer = (gchar *)g_realloc (sdata->buffer, new_max);
 340
 341                 sdata->buffer = new_buffer;
 342                 sdata->max = new_max;
 343         }
 344
 345         memcpy (sdata->buffer + sdata->len, buf, count);
 346         sdata->len += count;
 347
 348         return TRUE;
 349 }
 350
 351 static gboolean
 352 attachment_save_to_buffer (PopplerAttachment  *attachment,
 353                            gchar             **buffer,
 354                            gsize              *buffer_size,
 355                            GError            **error)
 356 {
 357         static const gint initial_max = 1024;
 358         struct SaveToBufferData sdata;
 359
 360         *buffer = NULL;
 361         *buffer_size = 0;
 362
 363         sdata.buffer = (gchar *) g_malloc (initial_max);
 364         sdata.max = initial_max;
 365         sdata.len = 0;
 366
 367         if (! poppler_attachment_save_to_callback (attachment,
 368                                                    attachment_save_to_buffer_callback,
 369                                                    &sdata,
 370                                                    error)) {
 371                 g_free (sdata.buffer);
 372                 return FALSE;
 373         }
 374
 375         *buffer = sdata.buffer;
 376         *buffer_size = sdata.len;
 377
 378         return TRUE;
 379 }
 380
 381 static GList *
 382 pdf_document_get_attachments (EvDocument *document)
 383 {
 384         PdfDocument *pdf_document;
 385         GList *attachments;
 386         GList *list;
 387         GList *retval = NULL;
 388
 389         pdf_document = PDF_DOCUMENT (document);
 390
 391         if (!pdf_document_has_attachments (document))
 392                 return NULL;
 393
 394         attachments = poppler_document_get_attachments (pdf_document->document);
 395
 396         for (list = attachments; list; list = list->next) {
 397                 PopplerAttachment *attachment;
 398                 EvAttachment *ev_attachment;
 399                 gchar *data = NULL;
 400                 gsize size;
 401                 GError *error = NULL;
 402
 403                 attachment = (PopplerAttachment *) list->data;
 404
 405                 if (attachment_save_to_buffer (attachment, &data, &size, &error)) {
 406                         ev_attachment = ev_attachment_new (attachment->name,
 407                                                            attachment->description,
 408                                                            attachment->mtime,
 409                                                            attachment->ctime,
 410                                                            size, data);
 411
 412                         retval = g_list_prepend (retval, ev_attachment);
 413                 } else {
 414                         if (error) {
 415                                 g_warning ("%s", error->message);
 416                                 g_error_free (error);
 417
 418                                 g_free (data);
 419                         }
 420                 }
 421
 422                 g_object_unref (attachment);
 423         }
 424
 425         return g_list_reverse (retval);
 426 }
 427
 428 static GdkPixbuf *
 429 pdf_document_render_pixbuf (EvDocument   *document,
 430                             EvRenderContext *rc)
 431 {
 432         PdfDocument *pdf_document;
 433         GdkPixbuf *pixbuf;
 434         double width_points, height_points;
 435         gint width, height;
 436
 437         pdf_document = PDF_DOCUMENT (document);
 438
 439         set_rc_data (pdf_document, rc);
 440
 441         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
 442
 443         if (rc->rotation == 90 || rc->rotation == 270) {
 444                 width = (int) ((height_points * rc->scale) + 0.5);
 445                 height = (int) ((width_points * rc->scale) + 0.5);
 446         } else {
 447                 width = (int) ((width_points * rc->scale) + 0.5);
 448                 height = (int) ((height_points * rc->scale) + 0.5);
 449         }
 450
 451         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 452                                  FALSE, 8,
 453                                  width, height);
 454
 455         poppler_page_render_to_pixbuf (POPPLER_PAGE (rc->data),
 456                                        0, 0,
 457                                        width, height,
 458                                        rc->scale,
 459                                        rc->rotation,
 460                                        pixbuf);
 461
 462
 463         return pixbuf;
 464 }
 465
 466 /* EvDocumentSecurity */
 467
 468 static gboolean
 469 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 470 {
 471         /* FIXME: do we really need to have this? */
 472         return FALSE;
 473 }
 474
 475 static void
 476 pdf_document_set_password (EvDocumentSecurity *document_security,
 477                            const char         *password)
 478 {
 479         PdfDocument *document = PDF_DOCUMENT (document_security);
 480
 481         if (document->password)
 482                 g_free (document->password);
 483
 484         document->password = g_strdup (password);
 485 }
 486
 487 static gboolean
 488 pdf_document_can_get_text (EvDocument *document)
 489 {
 490         return TRUE;
 491 }
 492
 493 static EvDocumentInfo *
 494 pdf_document_get_info (EvDocument *document)
 495 {
 496         EvDocumentInfo *info;
 497         PopplerPageLayout layout;
 498         PopplerPageMode mode;
 499         PopplerViewerPreferences view_prefs;
 500         PopplerPermissions permissions;
 501
 502         info = g_new0 (EvDocumentInfo, 1);
 503
 504         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 505                             EV_DOCUMENT_INFO_FORMAT |
 506                             EV_DOCUMENT_INFO_AUTHOR |
 507                             EV_DOCUMENT_INFO_SUBJECT |
 508                             EV_DOCUMENT_INFO_KEYWORDS |
 509                             EV_DOCUMENT_INFO_LAYOUT |
 510                             EV_DOCUMENT_INFO_START_MODE |
 511                             EV_DOCUMENT_INFO_PERMISSIONS |
 512                             EV_DOCUMENT_INFO_UI_HINTS |
 513                             EV_DOCUMENT_INFO_CREATOR |
 514                             EV_DOCUMENT_INFO_PRODUCER |
 515                             EV_DOCUMENT_INFO_CREATION_DATE |
 516                             EV_DOCUMENT_INFO_MOD_DATE |
 517                             EV_DOCUMENT_INFO_LINEARIZED |
 518                             EV_DOCUMENT_INFO_N_PAGES |
 519                             EV_DOCUMENT_INFO_SECURITY |
 520                             EV_DOCUMENT_INFO_PAPER_SIZE;
 521
 522         g_object_get (PDF_DOCUMENT (document)->document,
 523                       "title", &(info->title),
 524                       "format", &(info->format),
 525                       "author", &(info->author),
 526                       "subject", &(info->subject),
 527                       "keywords", &(info->keywords),
 528                       "page-mode", &mode,
 529                       "page-layout", &layout,
 530                       "viewer-preferences", &view_prefs,
 531                       "permissions", &permissions,
 532                       "creator", &(info->creator),
 533                       "producer", &(info->producer),
 534                       "creation-date", &(info->creation_date),
 535                       "mod-date", &(info->modified_date),
 536                       "linearized", &(info->linearized),
 537                       NULL);
 538
 539         pdf_document_get_page_size(document, 0,
 540                                    &(info->paper_width),
 541                                    &(info->paper_height));
 542
 543         // Convert to mm.
 544         info->paper_width = info->paper_width / 72.0f * 25.4f;
 545         info->paper_height = info->paper_height / 72.0f * 25.4f;
 546
 547         switch (layout) {
 548                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 549                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 550                         break;
 551                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 552                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 553                         break;
 554                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 555                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 556                         break;
 557                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 558                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 559                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 560                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 561                         break;
 562                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 563                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 564                         break;
 565                 default:
 566                         break;
 567         }
 568
 569         switch (mode) {
 570                 case POPPLER_PAGE_MODE_NONE:
 571                         info->mode = EV_DOCUMENT_MODE_NONE;
 572                         break;
 573                 case POPPLER_PAGE_MODE_USE_THUMBS:
 574                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 575                         break;
 576                 case POPPLER_PAGE_MODE_USE_OC:
 577                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 578                         break;
 579                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 580                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 581                         break;
 582                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 583                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 584                 default:
 585                         break;
 586         }
 587
 588         info->ui_hints = 0;
 589         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 590                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 591         }
 592         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 593                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 594         }
 595         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 596                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 597         }
 598         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 599                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 600         }
 601         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 602                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 603         }
 604         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 605                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 606         }
 607         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 608                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 609         }
 610
 611         info->permissions = 0;
 612         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 613                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 614         }
 615         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 616                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 617         }
 618         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 619                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 620         }
 621         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 622                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 623         }
 624
 625         info->n_pages = ev_document_get_n_pages (document);
 626
 627         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 628                 /* translators: this is the document security state */
 629                 info->security = g_strdup (_("Yes"));
 630         } else {
 631                 /* translators: this is the document security state */
 632                 info->security = g_strdup (_("No"));
 633         }
 634
 635         return info;
 636 }
 637
 638 static char *
 639 pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect)
 640 {
 641         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 642         PopplerPage *poppler_page;
 643         PopplerRectangle r;
 644         double height;
 645         char *text;
 646
 647         poppler_page = poppler_document_get_page (pdf_document->document, page);
 648         g_return_val_if_fail (poppler_page != NULL, NULL);
 649
 650         poppler_page_get_size (poppler_page, NULL, &height);
 651         r.x1 = rect->x1;
 652         r.y1 = height - rect->y2;
 653         r.x2 = rect->x2;
 654         r.y2 = height - rect->y1;
 655
 656         text = poppler_page_get_text (poppler_page, &r);
 657
 658         g_object_unref (poppler_page);
 659
 660         return text;
 661 }
 662
 663 static void
 664 pdf_document_document_iface_init (EvDocumentIface *iface)
 665 {
 666         iface->save = pdf_document_save;
 667         iface->load = pdf_document_load;
 668         iface->get_n_pages = pdf_document_get_n_pages;
 669         iface->get_page_size = pdf_document_get_page_size;
 670         iface->get_page_label = pdf_document_get_page_label;
 671         iface->has_attachments = pdf_document_has_attachments;
 672         iface->get_attachments = pdf_document_get_attachments;
 673         iface->render_pixbuf = pdf_document_render_pixbuf;
 674         iface->get_text = pdf_document_get_text;
 675         iface->can_get_text = pdf_document_can_get_text;
 676         iface->get_info = pdf_document_get_info;
 677 };
 678
 679 static void
 680 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 681 {
 682         iface->has_document_security = pdf_document_has_document_security;
 683         iface->set_password = pdf_document_set_password;
 684 }
 685
 686 static gdouble
 687 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 688 {
 689         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 690         int n_pages;
 691
 692         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 693
 694         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 695 }
 696
 697 static gboolean
 698 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 699                          int              n_pages)
 700 {
 701         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 702         gboolean result;
 703
 704         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 705
 706         if (pdf_document->font_info == NULL) {
 707                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 708         }
 709
 710         if (pdf_document->fonts_iter) {
 711                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 712         }
 713
 714         pdf_document->fonts_scanned_pages += n_pages;
 715
 716         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 717                                          &pdf_document->fonts_iter);
 718         if (!result) {
 719                 pdf_document->fonts_scanned_pages = 0;
 720                 poppler_font_info_free (pdf_document->font_info);
 721                 pdf_document->font_info = NULL;
 722         }
 723
 724         return result;
 725 }
 726
 727 static const char *
 728 font_type_to_string (PopplerFontType type)
 729 {
 730         switch (type) {
 731                 case POPPLER_FONT_TYPE_TYPE1:
 732                         return _("Type 1");
 733                 case POPPLER_FONT_TYPE_TYPE1C:
 734                         return _("Type 1C");
 735                 case POPPLER_FONT_TYPE_TYPE3:
 736                         return _("Type 3");
 737                 case POPPLER_FONT_TYPE_TRUETYPE:
 738                         return _("TrueType");
 739                 case POPPLER_FONT_TYPE_CID_TYPE0:
 740                         return _("Type 1 (CID)");
 741                 case POPPLER_FONT_TYPE_CID_TYPE0C:
 742                         return _("Type 1C (CID)");
 743                 case POPPLER_FONT_TYPE_CID_TYPE2:
 744                         return _("TrueType (CID)");
 745                 default:
 746                         return _("Unknown font type");
 747         }
 748 }
 749
 750 static void
 751 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 752                                GtkTreeModel    *model)
 753 {
 754         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 755         PopplerFontsIter *iter = pdf_document->fonts_iter;
 756
 757         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 758
 759         if (!iter)
 760                 return;
 761
 762         do {
 763                 GtkTreeIter list_iter;
 764                 const char *name;
 765                 const char *type;
 766                 const char *embedded;
 767                 char *details;
 768
 769                 name = poppler_fonts_iter_get_name (iter);
 770
 771                 if (name == NULL) {
 772                         name = _("No name");
 773                 }
 774
 775                 type = font_type_to_string (
 776                         poppler_fonts_iter_get_font_type (iter));
 777
 778                 if (poppler_fonts_iter_is_embedded (iter)) {
 779                         if (poppler_fonts_iter_is_subset (iter))
 780                                 embedded = _("Embedded subset");
 781                         else
 782                                 embedded = _("Embedded");
 783                 } else {
 784                         embedded = _("Not embedded");
 785                 }
 786
 787                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 788
 789                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 790                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 791                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 792                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 793                                     -1);
 794
 795                 g_free (details);
 796         } while (poppler_fonts_iter_next (iter));
 797 }
 798
 799 static void
 800 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 801 {
 802         iface->fill_model = pdf_document_fonts_fill_model;
 803         iface->scan = pdf_document_fonts_scan;
 804         iface->get_progress = pdf_document_fonts_get_progress;
 805 }
 806
 807 static gboolean
 808 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
 809 {
 810         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 811         PopplerIndexIter *iter;
 812
 813         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
 814
 815         iter = poppler_index_iter_new (pdf_document->document);
 816         if (iter == NULL)
 817                 return FALSE;
 818         poppler_index_iter_free (iter);
 819
 820         return TRUE;
 821 }
 822
 823 static EvLinkDest *
 824 ev_link_dest_from_dest (PdfDocument *pdf_document,
 825                         PopplerDest *dest)
 826 {
 827         EvLinkDest *ev_dest = NULL;
 828         const char *unimplemented_dest = NULL;
 829
 830         g_assert (dest != NULL);
 831
 832         switch (dest->type) {
 833                 case POPPLER_DEST_XYZ: {
 834                         PopplerPage *poppler_page;
 835                         double height;
 836
 837                         poppler_page = poppler_document_get_page (pdf_document->document,
 838                                                                   MAX (0, dest->page_num - 1));
 839                         poppler_page_get_size (poppler_page, NULL, &height);
 840                         ev_dest = ev_link_dest_new_xyz (dest->page_num - 1,
 841                                                         dest->left,
 842                                                         height - dest->top,
 843                                                         dest->zoom);
 844                         g_object_unref (poppler_page);
 845                 }
 846                         break;
 847                 case POPPLER_DEST_FIT:
 848                         ev_dest = ev_link_dest_new_fit (dest->page_num - 1);
 849                         break;
 850                 case POPPLER_DEST_FITH: {
 851                         PopplerPage *poppler_page;
 852                         double height;
 853
 854                         poppler_page = poppler_document_get_page (pdf_document->document,
 855                                                                   MAX (0, dest->page_num - 1));
 856                         poppler_page_get_size (poppler_page, NULL, &height);
 857                         ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
 858                                                          height - dest->top);
 859                         g_object_unref (poppler_page);
 860                 }
 861                         break;
 862                 case POPPLER_DEST_FITV:
 863                         ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
 864                                                          dest->left);
 865                         break;
 866                 case POPPLER_DEST_FITR: {
 867                         PopplerPage *poppler_page;
 868                         double height;
 869
 870                         poppler_page = poppler_document_get_page (pdf_document->document,
 871                                                                   MAX (0, dest->page_num - 1));
 872                         poppler_page_get_size (poppler_page, NULL, &height);
 873                         ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
 874                                                          dest->left,
 875                                                          height - dest->bottom,
 876                                                          dest->right,
 877                                                          height - dest->top);
 878                         g_object_unref (poppler_page);
 879                 }
 880                         break;
 881                 case POPPLER_DEST_FITB:
 882                         unimplemented_dest = "POPPLER_DEST_FITB";
 883                         break;
 884                 case POPPLER_DEST_FITBH:
 885                         unimplemented_dest = "POPPLER_DEST_FITBH";
 886                         break;
 887                 case POPPLER_DEST_FITBV:
 888                         unimplemented_dest = "POPPLER_DEST_FITBV";
 889                         break;
 890                 case POPPLER_DEST_NAMED:
 891                         ev_dest = ev_link_dest_new_named (dest->named_dest);
 892                         break;
 893                 case POPPLER_DEST_UNKNOWN:
 894                         unimplemented_dest = "POPPLER_DEST_UNKNOWN";
 895                         break;
 896         }
 897
 898         if (unimplemented_dest) {
 899                 g_warning ("Unimplemented named action: %s, please post a "
 900                            "bug report in Evince bugzilla "
 901                            "(http://bugzilla.gnome.org) with a testcase.",
 902                            unimplemented_dest);
 903         }
 904
 905         if (!ev_dest)
 906                 ev_dest = ev_link_dest_new_page (dest->page_num - 1);
 907
 908         return ev_dest;
 909 }
 910
 911 static EvLink *
 912 ev_link_from_action (PdfDocument   *pdf_document,
 913                      PopplerAction *action)
 914 {
 915         EvLink       *link = NULL;
 916         EvLinkAction *ev_action = NULL;
 917         const char   *unimplemented_action = NULL;
 918
 919         switch (action->type) {
 920                 case POPPLER_ACTION_GOTO_DEST: {
 921                         EvLinkDest *dest;
 922
 923                         dest = ev_link_dest_from_dest (pdf_document, action->goto_dest.dest);
 924                         ev_action = ev_link_action_new_dest (dest);
 925                 }
 926                         break;
 927                 case POPPLER_ACTION_GOTO_REMOTE: {
 928                         EvLinkDest *dest;
 929
 930                         dest = ev_link_dest_from_dest (pdf_document, action->goto_remote.dest);
 931                         ev_action = ev_link_action_new_remote (dest,
 932                                                                action->goto_remote.file_name);
 933
 934                 }
 935                         break;
 936                 case POPPLER_ACTION_LAUNCH:
 937                         ev_action = ev_link_action_new_launch (action->launch.file_name,
 938                                                                action->launch.params);
 939                         break;
 940                 case POPPLER_ACTION_URI:
 941                         ev_action = ev_link_action_new_external_uri (action->uri.uri);
 942                         break;
 943                 case POPPLER_ACTION_NAMED:
 944                         ev_action = ev_link_action_new_named (action->named.named_dest);
 945                         break;
 946                 case POPPLER_ACTION_MOVIE:
 947                         unimplemented_action = "POPPLER_ACTION_MOVIE";
 948                         break;
 949                 case POPPLER_ACTION_UNKNOWN:
 950                         unimplemented_action = "POPPLER_ACTION_UNKNOWN";
 951         }
 952
 953         if (unimplemented_action) {
 954                 g_warning ("Unimplemented action: %s, please post a bug report with a testcase.",
 955                            unimplemented_action);
 956         }
 957
 958         link = ev_link_new (action->any.title, ev_action);
 959
 960         return link;
 961 }
 962
 963 static void
 964 build_tree (PdfDocument      *pdf_document,
 965             GtkTreeModel     *model,
 966             GtkTreeIter      *parent,
 967             PopplerIndexIter *iter)
 968 {
 969
 970         do {
 971                 GtkTreeIter tree_iter;
 972                 PopplerIndexIter *child;
 973                 PopplerAction *action;
 974                 EvLink *link = NULL;
 975                 gboolean expand;
 976                 char *title_markup;
 977
 978                 action = poppler_index_iter_get_action (iter);
 979                 expand = poppler_index_iter_is_open (iter);
 980
 981                 if (!action)
 982                         continue;
 983
 984                 switch (action->type) {
 985                         case POPPLER_ACTION_GOTO_DEST: {
 986                                 /* For bookmarks, solve named destinations */
 987                                 if (action->goto_dest.dest->type == POPPLER_DEST_NAMED) {
 988                                         PopplerDest *dest;
 989                                         EvLinkDest *ev_dest = NULL;
 990                                         EvLinkAction *ev_action;
 991
 992                                         dest = poppler_document_find_dest (pdf_document->document,
 993                                                                            action->goto_dest.dest->named_dest);
 994                                         if (!dest) {
 995                                                 link = ev_link_from_action (pdf_document, action);
 996                                                 break;
 997                                         }
 998
 999                                         ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1000                                         poppler_dest_free (dest);
1001
1002                                         ev_action = ev_link_action_new_dest (ev_dest);
1003                                         link = ev_link_new (action->any.title, ev_action);
1004                                 } else {
1005                                         link = ev_link_from_action (pdf_document, action);
1006                                 }
1007                         }
1008                                 break;
1009                         default:
1010                                 link = ev_link_from_action (pdf_document, action);
1011                                 break;
1012                 }
1013
1014                 if (!link) {
1015                         poppler_action_free (action);
1016                         continue;
1017                 }
1018
1019                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
1020                 title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
1021
1022                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
1023                                     EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
1024                                     EV_DOCUMENT_LINKS_COLUMN_LINK, link,
1025                                     EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
1026                                     -1);
1027
1028                 g_free (title_markup);
1029                 g_object_unref (link);
1030
1031                 child = poppler_index_iter_get_child (iter);
1032                 if (child)
1033                         build_tree (pdf_document, model, &tree_iter, child);
1034                 poppler_index_iter_free (child);
1035                 poppler_action_free (action);
1036
1037         } while (poppler_index_iter_next (iter));
1038 }
1039
1040 static GtkTreeModel *
1041 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
1042 {
1043         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1044         GtkTreeModel *model = NULL;
1045         PopplerIndexIter *iter;
1046
1047         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
1048
1049         iter = poppler_index_iter_new (pdf_document->document);
1050         /* Create the model if we have items*/
1051         if (iter != NULL) {
1052                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
1053                                                              G_TYPE_STRING,
1054                                                              G_TYPE_OBJECT,
1055                                                              G_TYPE_BOOLEAN);
1056                 build_tree (pdf_document, model, NULL, iter);
1057                 poppler_index_iter_free (iter);
1058         }
1059
1060         return model;
1061 }
1062
1063 static GList *
1064 pdf_document_links_get_links (EvDocumentLinks *document_links,
1065                               gint             page)
1066 {
1067         PdfDocument *pdf_document;
1068         PopplerPage *poppler_page;
1069         GList *retval = NULL;
1070         GList *mapping_list;
1071         GList *list;
1072         double height;
1073
1074         pdf_document = PDF_DOCUMENT (document_links);
1075         poppler_page = poppler_document_get_page (pdf_document->document,
1076                                                   page);
1077         mapping_list = poppler_page_get_link_mapping (poppler_page);
1078         poppler_page_get_size (poppler_page, NULL, &height);
1079
1080         for (list = mapping_list; list; list = list->next) {
1081                 PopplerLinkMapping *link_mapping;
1082                 EvLinkMapping *ev_link_mapping;
1083
1084                 link_mapping = (PopplerLinkMapping *)list->data;
1085                 ev_link_mapping = g_new (EvLinkMapping, 1);
1086                 ev_link_mapping->link = ev_link_from_action (pdf_document,
1087                                                              link_mapping->action);
1088                 ev_link_mapping->x1 = link_mapping->area.x1;
1089                 ev_link_mapping->x2 = link_mapping->area.x2;
1090                 /* Invert this for X-style coordinates */
1091                 ev_link_mapping->y1 = height - link_mapping->area.y2;
1092                 ev_link_mapping->y2 = height - link_mapping->area.y1;
1093
1094                 retval = g_list_prepend (retval, ev_link_mapping);
1095         }
1096
1097         poppler_page_free_link_mapping (mapping_list);
1098         g_object_unref (poppler_page);
1099
1100         return g_list_reverse (retval);
1101 }
1102
1103 static EvLinkDest *
1104 pdf_document_links_find_link_dest (EvDocumentLinks  *document_links,
1105                                    const gchar      *link_name)
1106 {
1107         PdfDocument *pdf_document;
1108         PopplerDest *dest;
1109         EvLinkDest *ev_dest = NULL;
1110
1111         pdf_document = PDF_DOCUMENT (document_links);
1112         dest = poppler_document_find_dest (pdf_document->document,
1113                                            link_name);
1114         if (dest) {
1115                 ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1116                 poppler_dest_free (dest);
1117         }
1118
1119         return ev_dest;
1120 }
1121
1122 static void
1123 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
1124 {
1125         iface->has_document_links = pdf_document_links_has_document_links;
1126         iface->get_links_model = pdf_document_links_get_links_model;
1127         iface->get_links = pdf_document_links_get_links;
1128         iface->find_link_dest = pdf_document_links_find_link_dest;
1129 }
1130
1131 static GList *
1132 pdf_document_images_get_images (EvDocumentImages *document_images,
1133                                 gint              page)
1134 {
1135         GList *retval = NULL;
1136 #ifdef HAVE_POPPLER_PAGE_GET_IMAGE_MAPPING
1137         PdfDocument *pdf_document;
1138         PopplerPage *poppler_page;
1139         GList *mapping_list;
1140         GList *list;
1141
1142         pdf_document = PDF_DOCUMENT (document_images);
1143         poppler_page = poppler_document_get_page (pdf_document->document, page);
1144         mapping_list = poppler_page_get_image_mapping (poppler_page);
1145
1146         for (list = mapping_list; list; list = list->next) {
1147                 PopplerImageMapping *image_mapping;
1148                 EvImageMapping *ev_image_mapping;
1149
1150                 image_mapping = (PopplerImageMapping *)list->data;
1151
1152                 ev_image_mapping = g_new (EvImageMapping, 1);
1153
1154                 ev_image_mapping->image = ev_image_new_from_pixbuf (image_mapping->image);
1155                 ev_image_mapping->x1 = image_mapping->area.x1;
1156                 ev_image_mapping->x2 = image_mapping->area.x2;
1157                 ev_image_mapping->y1 = image_mapping->area.y1;
1158                 ev_image_mapping->y2 = image_mapping->area.y2;
1159
1160                 retval = g_list_prepend (retval, ev_image_mapping);
1161         }
1162
1163         poppler_page_free_image_mapping (mapping_list);
1164         g_object_unref (poppler_page);
1165 #endif /* HAVE_POPPLER_PAGE_GET_IMAGE_MAPPING */
1166         return retval;
1167 }
1168
1169 static void
1170 pdf_document_document_images_iface_init (EvDocumentImagesIface *iface)
1171 {
1172         iface->get_images = pdf_document_images_get_images;
1173 }
1174
1175 static GdkPixbuf *
1176 make_thumbnail_for_size (PdfDocument   *pdf_document,
1177                          gint           page,
1178                          int            rotation,
1179                          gint           size)
1180 {
1181         PopplerPage *poppler_page;
1182         GdkPixbuf *pixbuf;
1183         int width, height;
1184         double scale;
1185         gdouble unscaled_width, unscaled_height;
1186
1187         poppler_page = poppler_document_get_page (pdf_document->document, page);
1188         g_return_val_if_fail (poppler_page != NULL, NULL);
1189
1190         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page,
1191                                                 size, &width, &height);
1192         poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
1193         scale = width / unscaled_width;
1194
1195         /* rotate */
1196         if (rotation == 90 || rotation == 270) {
1197                 int temp;
1198                 temp = width;
1199                 width = height;
1200                 height = temp;
1201         }
1202
1203         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1204                                  width, height);
1205         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1206
1207         ev_document_fc_mutex_lock ();
1208         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1209                                        width, height,
1210                                        scale, rotation, pixbuf);
1211         ev_document_fc_mutex_unlock ();
1212
1213
1214         g_object_unref (poppler_page);
1215
1216         return pixbuf;
1217 }
1218
1219 static GdkPixbuf *
1220 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1221                                        gint                  page,
1222                                        gint                  rotation,
1223                                        gint                  size,
1224                                        gboolean              border)
1225 {
1226         PdfDocument *pdf_document;
1227         PopplerPage *poppler_page;
1228         GdkPixbuf *pixbuf;
1229         GdkPixbuf *border_pixbuf;
1230
1231         pdf_document = PDF_DOCUMENT (document_thumbnails);
1232
1233         poppler_page = poppler_document_get_page (pdf_document->document, page);
1234         g_return_val_if_fail (poppler_page != NULL, NULL);
1235
1236         pixbuf = poppler_page_get_thumbnail (poppler_page);
1237
1238         if (pixbuf == NULL) {
1239                 /* There is no provided thumbnail.  We need to make one. */
1240                 pixbuf = make_thumbnail_for_size (pdf_document, page, rotation, size);
1241         }
1242
1243         if (border) {
1244                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, rotation, pixbuf);
1245                 g_object_unref (pixbuf);
1246                 pixbuf = border_pixbuf;
1247         }
1248
1249         g_object_unref (poppler_page);
1250
1251         return pixbuf;
1252 }
1253
1254 static void
1255 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1256                                         gint                  page,
1257                                         gint                  size,
1258                                         gint                 *width,
1259                                         gint                 *height)
1260 {
1261         PdfDocument *pdf_document;
1262         PopplerPage *poppler_page;
1263         gint has_thumb;
1264
1265         pdf_document = PDF_DOCUMENT (document_thumbnails);
1266         poppler_page = poppler_document_get_page (pdf_document->document, page);
1267
1268         g_return_if_fail (width != NULL);
1269         g_return_if_fail (height != NULL);
1270         g_return_if_fail (poppler_page != NULL);
1271
1272         has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
1273
1274         if (!has_thumb) {
1275                 double page_width, page_height;
1276
1277                 poppler_page_get_size (poppler_page, &page_width, &page_height);
1278                 *width = size;
1279                 *height = (int) (size * page_height / page_width);
1280         }
1281         g_object_unref (poppler_page);
1282 }
1283
1284 static void
1285 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1286 {
1287         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1288         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1289 }
1290
1291
1292 static gboolean
1293 pdf_document_search_idle_callback (void *data)
1294 {
1295         PdfDocumentSearch *search = (PdfDocumentSearch*) data;
1296         PdfDocument *pdf_document = search->document;
1297         int n_pages;
1298         GList *matches;
1299         PopplerPage *page;
1300
1301         page = poppler_document_get_page (search->document->document,
1302                                           search->search_page);
1303
1304         ev_document_doc_mutex_lock ();
1305         matches = poppler_page_find_text (page, search->text);
1306         ev_document_doc_mutex_unlock ();
1307
1308         g_object_unref (page);
1309
1310         search->pages[search->search_page] = matches;
1311         ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document),
1312                                   search->search_page);
1313
1314         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document));
1315         search->search_page += 1;
1316         if (search->search_page == n_pages) {
1317                 /* wrap around */
1318                 search->search_page = 0;
1319         }
1320
1321         if (search->search_page != search->start_page) {
1322                 return TRUE;
1323         }
1324
1325         /* We're done. */
1326         search->idle = 0; /* will return FALSE to remove */
1327         return FALSE;
1328 }
1329
1330
1331 static PdfDocumentSearch *
1332 pdf_document_search_new (PdfDocument *pdf_document,
1333                          int          start_page,
1334                          const char  *text)
1335 {
1336         PdfDocumentSearch *search;
1337         int n_pages;
1338         int i;
1339
1340         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
1341
1342         search = g_new0 (PdfDocumentSearch, 1);
1343
1344         search->text = g_strdup (text);
1345         search->pages = g_new0 (GList *, n_pages);
1346         search->document = pdf_document;
1347
1348         /* We add at low priority so the progress bar repaints */
1349         search->idle = g_idle_add_full (G_PRIORITY_LOW,
1350                                         pdf_document_search_idle_callback,
1351                                         search,
1352                                         NULL);
1353
1354         search->start_page = start_page;
1355         search->search_page = start_page;
1356
1357         return search;
1358 }
1359
1360 static void
1361 pdf_document_find_begin (EvDocumentFind   *document,
1362                          int               page,
1363                          const char       *search_string,
1364                          gboolean          case_sensitive)
1365 {
1366         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1367
1368         /* FIXME handle case_sensitive (right now XPDF
1369          * code is always case insensitive for ASCII
1370          * and case sensitive for all other languaages)
1371          */
1372
1373         if (pdf_document->search &&
1374             strcmp (search_string, pdf_document->search->text) == 0)
1375                 return;
1376
1377         if (pdf_document->search)
1378                 pdf_document_search_free (pdf_document->search);
1379
1380         pdf_document->search = pdf_document_search_new (pdf_document,
1381                                                         page,
1382                                                         search_string);
1383 }
1384
1385 static int
1386 pdf_document_find_get_n_results (EvDocumentFind *document_find, int page)
1387 {
1388         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1389
1390         if (search) {
1391                 return g_list_length (search->pages[page]);
1392         } else {
1393                 return 0;
1394         }
1395 }
1396
1397 static gboolean
1398 pdf_document_find_get_result (EvDocumentFind *document_find,
1399                               int             page,
1400                               int             n_result,
1401                               EvRectangle    *rectangle)
1402 {
1403         PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
1404         PdfDocumentSearch *search = pdf_document->search;
1405         PopplerPage *poppler_page;
1406         PopplerRectangle *r;
1407         double height;
1408
1409         if (search == NULL)
1410                 return FALSE;
1411
1412         r = (PopplerRectangle *) g_list_nth_data (search->pages[page],
1413                                                   n_result);
1414         if (r == NULL)
1415                 return FALSE;
1416
1417         poppler_page = poppler_document_get_page (pdf_document->document, page);
1418         poppler_page_get_size (poppler_page, NULL, &height);
1419         rectangle->x1 = r->x1;
1420         rectangle->y1 = height - r->y2;
1421         rectangle->x2 = r->x2;
1422         rectangle->y2 = height - r->y1;
1423         g_object_unref (poppler_page);
1424
1425         return TRUE;
1426 }
1427
1428 static int
1429 pdf_document_find_page_has_results (EvDocumentFind *document_find,
1430                                     int             page)
1431 {
1432         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1433
1434         return search && search->pages[page] != NULL;
1435 }
1436
1437 static double
1438 pdf_document_find_get_progress (EvDocumentFind *document_find)
1439 {
1440         PdfDocumentSearch *search;
1441         int n_pages, pages_done;
1442
1443         search = PDF_DOCUMENT (document_find)->search;
1444
1445         if (search == NULL) {
1446                 return 0;
1447         }
1448
1449         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find));
1450         if (search->search_page > search->start_page) {
1451                 pages_done = search->search_page - search->start_page + 1;
1452         } else if (search->search_page == search->start_page) {
1453                 pages_done = n_pages;
1454         } else {
1455                 pages_done = n_pages - search->start_page + search->search_page;
1456         }
1457
1458         return pages_done / (double) n_pages;
1459 }
1460
1461 static void
1462 pdf_document_find_cancel (EvDocumentFind *document)
1463 {
1464         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1465
1466         if (pdf_document->search) {
1467                 pdf_document_search_free (pdf_document->search);
1468                 pdf_document->search = NULL;
1469         }
1470 }
1471
1472 static void
1473 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1474 {
1475         iface->begin = pdf_document_find_begin;
1476         iface->get_n_results = pdf_document_find_get_n_results;
1477         iface->get_result = pdf_document_find_get_result;
1478         iface->page_has_results = pdf_document_find_page_has_results;
1479         iface->get_progress = pdf_document_find_get_progress;
1480         iface->cancel = pdf_document_find_cancel;
1481 }
1482
1483 static const gboolean supported_formats[] = {
1484         TRUE, /* EV_FILE_FORMAT_PS */
1485 #ifdef HAVE_CAIRO_PDF
1486 #ifdef HAVE_POPPLER_PAGE_RENDER
1487         TRUE, /* EV_FILE_FORMAT_PDF */
1488 #else
1489         FALSE, /* EV_FILE_FORMAT_PDF */
1490 #endif
1491 #endif
1492 };
1493
1494 static void
1495 pdf_print_context_free (PdfPrintContext *ctx)
1496 {
1497         if (!ctx)
1498                 return;
1499
1500         if (ctx->ps_file) {
1501                 poppler_ps_file_free (ctx->ps_file);
1502                 ctx->ps_file = NULL;
1503         }
1504 #ifdef HAVE_CAIRO_PDF
1505         if (ctx->pdf_cairo) {
1506                 cairo_destroy (ctx->pdf_cairo);
1507                 ctx->pdf_cairo = NULL;
1508         }
1509 #endif
1510         g_free (ctx);
1511 }
1512
1513 static gboolean
1514 pdf_document_file_exporter_format_supported (EvFileExporter      *exporter,
1515                                              EvFileExporterFormat format)
1516 {
1517         return supported_formats[format];
1518 }
1519
1520 static void
1521 pdf_document_file_exporter_begin (EvFileExporter      *exporter,
1522                                   EvFileExporterFormat format,
1523                                   const char          *filename,
1524                                   int                  first_page,
1525                                   int                  last_page,
1526                                   double               width,
1527                                   double               height,
1528                                   gboolean             duplex)
1529 {
1530         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1531         PdfPrintContext *ctx;
1532
1533         if (pdf_document->print_ctx)
1534                 pdf_print_context_free (pdf_document->print_ctx);
1535         pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
1536         ctx = pdf_document->print_ctx;
1537         ctx->format = format;
1538
1539         switch (format) {
1540                 case EV_FILE_FORMAT_PS:
1541                         ctx->ps_file = poppler_ps_file_new (pdf_document->document,
1542                                                             filename, first_page,
1543                                                             last_page - first_page + 1);
1544                         poppler_ps_file_set_paper_size (ctx->ps_file, width, height);
1545                         poppler_ps_file_set_duplex (ctx->ps_file, duplex);
1546
1547                         break;
1548                 case EV_FILE_FORMAT_PDF: {
1549 #ifdef HAVE_CAIRO_PDF
1550                         cairo_surface_t *surface;
1551
1552                         surface = cairo_pdf_surface_create (filename, width, height);
1553                         ctx->pdf_cairo = cairo_create (surface);
1554                         cairo_surface_destroy (surface);
1555 #endif
1556                 }
1557                         break;
1558                 default:
1559                         g_assert_not_reached ();
1560         }
1561 }
1562
1563 static void
1564 pdf_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
1565 {
1566         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1567         PdfPrintContext *ctx = pdf_document->print_ctx;
1568         PopplerPage *poppler_page;
1569
1570         g_return_if_fail (pdf_document->print_ctx != NULL);
1571
1572         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1573
1574         switch (ctx->format) {
1575                 case EV_FILE_FORMAT_PS:
1576                         poppler_page_render_to_ps (poppler_page, ctx->ps_file);
1577                         break;
1578                 case EV_FILE_FORMAT_PDF:
1579 #ifdef HAVE_POPPLER_PAGE_RENDER
1580                         poppler_page_render (poppler_page, ctx->pdf_cairo);
1581 #endif
1582 #ifdef HAVE_CAIRO_PDF
1583                         cairo_show_page (ctx->pdf_cairo);
1584 #endif
1585                         break;
1586                 default:
1587                         g_assert_not_reached ();
1588         }
1589
1590         g_object_unref (poppler_page);
1591 }
1592
1593 static void
1594 pdf_document_file_exporter_end (EvFileExporter *exporter)
1595 {
1596         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1597
1598         pdf_print_context_free (pdf_document->print_ctx);
1599         pdf_document->print_ctx = NULL;
1600 }
1601
1602 static void
1603 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
1604 {
1605         iface->format_supported = pdf_document_file_exporter_format_supported;
1606         iface->begin = pdf_document_file_exporter_begin;
1607         iface->do_page = pdf_document_file_exporter_do_page;
1608         iface->end = pdf_document_file_exporter_end;
1609 }
1610
1611 static void
1612 pdf_selection_render_selection (EvSelection      *selection,
1613                                 EvRenderContext  *rc,
1614                                 GdkPixbuf       **pixbuf,
1615                                 EvRectangle      *points,
1616                                 EvRectangle      *old_points,
1617                                 GdkColor        *text,
1618                                 GdkColor        *base)
1619 {
1620         PdfDocument *pdf_document;
1621         double width_points, height_points;
1622         gint width, height;
1623
1624         pdf_document = PDF_DOCUMENT (selection);
1625         set_rc_data (pdf_document, rc);
1626
1627         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
1628         width = (int) ((width_points * rc->scale) + 0.5);
1629         height = (int) ((height_points * rc->scale) + 0.5);
1630
1631         if (*pixbuf == NULL) {
1632                 * pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1633                                            TRUE, 8,
1634                                            width, height);
1635         }
1636
1637         poppler_page_render_selection (POPPLER_PAGE (rc->data),
1638                                        rc->scale, rc->rotation, *pixbuf,
1639                                        (PopplerRectangle *)points,
1640                                        (PopplerRectangle *)old_points,
1641                                        text,
1642                                        base);
1643 }
1644
1645
1646 static GdkRegion *
1647 pdf_selection_get_selection_region (EvSelection     *selection,
1648                                     EvRenderContext *rc,
1649                                     EvRectangle     *points)
1650 {
1651         PdfDocument *pdf_document;
1652         GdkRegion *retval;
1653
1654         pdf_document = PDF_DOCUMENT (selection);
1655
1656         set_rc_data (pdf_document, rc);
1657
1658         retval = poppler_page_get_selection_region ((PopplerPage *)rc->data, rc->scale, (PopplerRectangle *) points);
1659
1660         return retval;
1661 }
1662
1663 static GdkRegion *
1664 pdf_selection_get_selection_map (EvSelection     *selection,
1665                                  EvRenderContext *rc)
1666 {
1667         PdfDocument *pdf_document;
1668         PopplerPage *poppler_page;
1669         PopplerRectangle points;
1670         GdkRegion *retval;
1671
1672         pdf_document = PDF_DOCUMENT (selection);
1673         poppler_page = poppler_document_get_page (pdf_document->document,
1674                                                   rc->page);
1675
1676         points.x1 = 0.0;
1677         points.y1 = 0.0;
1678         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
1679         retval = poppler_page_get_selection_region (poppler_page, 1.0, &points);
1680         g_object_unref (poppler_page);
1681
1682         return retval;
1683 }
1684
1685 static void
1686 pdf_selection_iface_init (EvSelectionIface *iface)
1687 {
1688         iface->render_selection = pdf_selection_render_selection;
1689         iface->get_selection_region = pdf_selection_get_selection_region;
1690         iface->get_selection_map = pdf_selection_get_selection_map;
1691 }
1692
1693 /* Page Transitions */
1694 static gdouble
1695 pdf_document_get_page_duration (EvDocumentTransition *trans,
1696                                 gint                  page)
1697 {
1698 #ifdef HAVE_POPPLER_PAGE_GET_DURATION
1699         PdfDocument *pdf_document;
1700         PopplerPage *poppler_page;
1701         gdouble      duration = -1;
1702
1703         pdf_document = PDF_DOCUMENT (trans);
1704         poppler_page = poppler_document_get_page (pdf_document->document, page);
1705         if (!poppler_page)
1706                 return -1;
1707
1708         duration = poppler_page_get_duration (poppler_page);
1709         g_object_unref (poppler_page);
1710
1711         return duration;
1712 #else
1713         return -1;
1714 #endif /* HAVE_POPPLER_PAGE_GET_DURATION */
1715 }
1716
1717 static void
1718 pdf_document_page_transition_iface_init (EvDocumentTransitionIface *iface)
1719 {
1720         iface->get_page_duration = pdf_document_get_page_duration;
1721 }
1722
1723 PdfDocument *
1724 pdf_document_new (void)
1725 {
1726         return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
1727 }