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 cairo_surface_t *
 430 pdf_document_render (EvDocument      *document,
 431                      EvRenderContext *rc)
 432 {
 433         PdfDocument *pdf_document;
 434         cairo_surface_t *surface;
 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 #ifdef HAVE_POPPLER_PAGE_RENDER
 453         cairo_t *cr;
 454
 455         surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
 456                                               width, height);
 457         memset (cairo_image_surface_get_data (surface), 0xff,
 458                 cairo_image_surface_get_height (surface) *
 459                 cairo_image_surface_get_stride (surface));
 460
 461         cr = cairo_create (surface);
 462         switch (rc->rotation) {
 463                 case 90:
 464                         cairo_translate (cr, width, 0);
 465                         break;
 466                 case 180:
 467                         cairo_translate (cr, width, height);
 468                         break;
 469                 case 270:
 470                         cairo_translate (cr, 0, height);
 471                         break;
 472                 default:
 473                         cairo_translate (cr, 0, 0);
 474         }
 475         cairo_scale (cr, rc->scale, rc->scale);
 476         cairo_rotate (cr, rc->rotation * G_PI / 180.0);
 477         poppler_page_render (POPPLER_PAGE (rc->data), cr);
 478         cairo_destroy (cr);
 479 #else /* HAVE_POPPLER_PAGE_RENDER */
 480         GdkPixbuf *pixbuf;
 481
 482         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 483                                  FALSE, 8,
 484                                  width, height);
 485
 486         poppler_page_render_to_pixbuf (POPPLER_PAGE (rc->data),
 487                                        0, 0,
 488                                        width, height,
 489                                        rc->scale,
 490                                        rc->rotation,
 491                                        pixbuf);
 492         surface = ev_document_misc_surface_from_pixbuf (pixbuf);
 493         g_object_unref (pixbuf);
 494 #endif /* HAVE_POPPLER_PAGE_RENDER */
 495
 496         return surface;
 497 }
 498
 499 /* EvDocumentSecurity */
 500
 501 static gboolean
 502 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 503 {
 504         /* FIXME: do we really need to have this? */
 505         return FALSE;
 506 }
 507
 508 static void
 509 pdf_document_set_password (EvDocumentSecurity *document_security,
 510                            const char         *password)
 511 {
 512         PdfDocument *document = PDF_DOCUMENT (document_security);
 513
 514         if (document->password)
 515                 g_free (document->password);
 516
 517         document->password = g_strdup (password);
 518 }
 519
 520 static gboolean
 521 pdf_document_can_get_text (EvDocument *document)
 522 {
 523         return TRUE;
 524 }
 525
 526 static EvDocumentInfo *
 527 pdf_document_get_info (EvDocument *document)
 528 {
 529         EvDocumentInfo *info;
 530         PopplerPageLayout layout;
 531         PopplerPageMode mode;
 532         PopplerViewerPreferences view_prefs;
 533         PopplerPermissions permissions;
 534
 535         info = g_new0 (EvDocumentInfo, 1);
 536
 537         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 538                             EV_DOCUMENT_INFO_FORMAT |
 539                             EV_DOCUMENT_INFO_AUTHOR |
 540                             EV_DOCUMENT_INFO_SUBJECT |
 541                             EV_DOCUMENT_INFO_KEYWORDS |
 542                             EV_DOCUMENT_INFO_LAYOUT |
 543                             EV_DOCUMENT_INFO_START_MODE |
 544                             EV_DOCUMENT_INFO_PERMISSIONS |
 545                             EV_DOCUMENT_INFO_UI_HINTS |
 546                             EV_DOCUMENT_INFO_CREATOR |
 547                             EV_DOCUMENT_INFO_PRODUCER |
 548                             EV_DOCUMENT_INFO_CREATION_DATE |
 549                             EV_DOCUMENT_INFO_MOD_DATE |
 550                             EV_DOCUMENT_INFO_LINEARIZED |
 551                             EV_DOCUMENT_INFO_N_PAGES |
 552                             EV_DOCUMENT_INFO_SECURITY |
 553                             EV_DOCUMENT_INFO_PAPER_SIZE;
 554
 555         g_object_get (PDF_DOCUMENT (document)->document,
 556                       "title", &(info->title),
 557                       "format", &(info->format),
 558                       "author", &(info->author),
 559                       "subject", &(info->subject),
 560                       "keywords", &(info->keywords),
 561                       "page-mode", &mode,
 562                       "page-layout", &layout,
 563                       "viewer-preferences", &view_prefs,
 564                       "permissions", &permissions,
 565                       "creator", &(info->creator),
 566                       "producer", &(info->producer),
 567                       "creation-date", &(info->creation_date),
 568                       "mod-date", &(info->modified_date),
 569                       "linearized", &(info->linearized),
 570                       NULL);
 571
 572         pdf_document_get_page_size(document, 0,
 573                                    &(info->paper_width),
 574                                    &(info->paper_height));
 575
 576         // Convert to mm.
 577         info->paper_width = info->paper_width / 72.0f * 25.4f;
 578         info->paper_height = info->paper_height / 72.0f * 25.4f;
 579
 580         switch (layout) {
 581                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 582                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 583                         break;
 584                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 585                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 586                         break;
 587                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 588                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 589                         break;
 590                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 591                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 592                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 593                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 594                         break;
 595                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 596                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 597                         break;
 598                 default:
 599                         break;
 600         }
 601
 602         switch (mode) {
 603                 case POPPLER_PAGE_MODE_NONE:
 604                         info->mode = EV_DOCUMENT_MODE_NONE;
 605                         break;
 606                 case POPPLER_PAGE_MODE_USE_THUMBS:
 607                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 608                         break;
 609                 case POPPLER_PAGE_MODE_USE_OC:
 610                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 611                         break;
 612                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 613                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 614                         break;
 615                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 616                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 617                 default:
 618                         break;
 619         }
 620
 621         info->ui_hints = 0;
 622         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 623                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 624         }
 625         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 626                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 627         }
 628         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 629                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 630         }
 631         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 632                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 633         }
 634         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 635                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 636         }
 637         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 638                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 639         }
 640         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 641                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 642         }
 643
 644         info->permissions = 0;
 645         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 646                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 647         }
 648         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 649                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 650         }
 651         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 652                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 653         }
 654         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 655                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 656         }
 657
 658         info->n_pages = ev_document_get_n_pages (document);
 659
 660         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 661                 /* translators: this is the document security state */
 662                 info->security = g_strdup (_("Yes"));
 663         } else {
 664                 /* translators: this is the document security state */
 665                 info->security = g_strdup (_("No"));
 666         }
 667
 668         return info;
 669 }
 670
 671 static char *
 672 pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect)
 673 {
 674         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 675         PopplerPage *poppler_page;
 676         PopplerRectangle r;
 677         double height;
 678         char *text;
 679
 680         poppler_page = poppler_document_get_page (pdf_document->document, page);
 681         g_return_val_if_fail (poppler_page != NULL, NULL);
 682
 683         poppler_page_get_size (poppler_page, NULL, &height);
 684         r.x1 = rect->x1;
 685         r.y1 = height - rect->y2;
 686         r.x2 = rect->x2;
 687         r.y2 = height - rect->y1;
 688
 689         text = poppler_page_get_text (poppler_page, &r);
 690
 691         g_object_unref (poppler_page);
 692
 693         return text;
 694 }
 695
 696 static void
 697 pdf_document_document_iface_init (EvDocumentIface *iface)
 698 {
 699         iface->save = pdf_document_save;
 700         iface->load = pdf_document_load;
 701         iface->get_n_pages = pdf_document_get_n_pages;
 702         iface->get_page_size = pdf_document_get_page_size;
 703         iface->get_page_label = pdf_document_get_page_label;
 704         iface->has_attachments = pdf_document_has_attachments;
 705         iface->get_attachments = pdf_document_get_attachments;
 706         iface->render = pdf_document_render;
 707         iface->get_text = pdf_document_get_text;
 708         iface->can_get_text = pdf_document_can_get_text;
 709         iface->get_info = pdf_document_get_info;
 710 };
 711
 712 static void
 713 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 714 {
 715         iface->has_document_security = pdf_document_has_document_security;
 716         iface->set_password = pdf_document_set_password;
 717 }
 718
 719 static gdouble
 720 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 721 {
 722         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 723         int n_pages;
 724
 725         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 726
 727         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 728 }
 729
 730 static gboolean
 731 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 732                          int              n_pages)
 733 {
 734         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 735         gboolean result;
 736
 737         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 738
 739         if (pdf_document->font_info == NULL) {
 740                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 741         }
 742
 743         if (pdf_document->fonts_iter) {
 744                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 745         }
 746
 747         pdf_document->fonts_scanned_pages += n_pages;
 748
 749         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 750                                          &pdf_document->fonts_iter);
 751         if (!result) {
 752                 pdf_document->fonts_scanned_pages = 0;
 753                 poppler_font_info_free (pdf_document->font_info);
 754                 pdf_document->font_info = NULL;
 755         }
 756
 757         return result;
 758 }
 759
 760 static const char *
 761 font_type_to_string (PopplerFontType type)
 762 {
 763         switch (type) {
 764                 case POPPLER_FONT_TYPE_TYPE1:
 765                         return _("Type 1");
 766                 case POPPLER_FONT_TYPE_TYPE1C:
 767                         return _("Type 1C");
 768                 case POPPLER_FONT_TYPE_TYPE3:
 769                         return _("Type 3");
 770                 case POPPLER_FONT_TYPE_TRUETYPE:
 771                         return _("TrueType");
 772                 case POPPLER_FONT_TYPE_CID_TYPE0:
 773                         return _("Type 1 (CID)");
 774                 case POPPLER_FONT_TYPE_CID_TYPE0C:
 775                         return _("Type 1C (CID)");
 776                 case POPPLER_FONT_TYPE_CID_TYPE2:
 777                         return _("TrueType (CID)");
 778                 default:
 779                         return _("Unknown font type");
 780         }
 781 }
 782
 783 static void
 784 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 785                                GtkTreeModel    *model)
 786 {
 787         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 788         PopplerFontsIter *iter = pdf_document->fonts_iter;
 789
 790         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 791
 792         if (!iter)
 793                 return;
 794
 795         do {
 796                 GtkTreeIter list_iter;
 797                 const char *name;
 798                 const char *type;
 799                 const char *embedded;
 800                 char *details;
 801
 802                 name = poppler_fonts_iter_get_name (iter);
 803
 804                 if (name == NULL) {
 805                         name = _("No name");
 806                 }
 807
 808                 type = font_type_to_string (
 809                         poppler_fonts_iter_get_font_type (iter));
 810
 811                 if (poppler_fonts_iter_is_embedded (iter)) {
 812                         if (poppler_fonts_iter_is_subset (iter))
 813                                 embedded = _("Embedded subset");
 814                         else
 815                                 embedded = _("Embedded");
 816                 } else {
 817                         embedded = _("Not embedded");
 818                 }
 819
 820                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 821
 822                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 823                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 824                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 825                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 826                                     -1);
 827
 828                 g_free (details);
 829         } while (poppler_fonts_iter_next (iter));
 830 }
 831
 832 static void
 833 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 834 {
 835         iface->fill_model = pdf_document_fonts_fill_model;
 836         iface->scan = pdf_document_fonts_scan;
 837         iface->get_progress = pdf_document_fonts_get_progress;
 838 }
 839
 840 static gboolean
 841 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
 842 {
 843         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 844         PopplerIndexIter *iter;
 845
 846         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
 847
 848         iter = poppler_index_iter_new (pdf_document->document);
 849         if (iter == NULL)
 850                 return FALSE;
 851         poppler_index_iter_free (iter);
 852
 853         return TRUE;
 854 }
 855
 856 static EvLinkDest *
 857 ev_link_dest_from_dest (PdfDocument *pdf_document,
 858                         PopplerDest *dest)
 859 {
 860         EvLinkDest *ev_dest = NULL;
 861         const char *unimplemented_dest = NULL;
 862
 863         g_assert (dest != NULL);
 864
 865         switch (dest->type) {
 866                 case POPPLER_DEST_XYZ: {
 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_xyz (dest->page_num - 1,
 874                                                         dest->left,
 875                                                         height - dest->top,
 876                                                         dest->zoom);
 877                         g_object_unref (poppler_page);
 878                 }
 879                         break;
 880                 case POPPLER_DEST_FIT:
 881                         ev_dest = ev_link_dest_new_fit (dest->page_num - 1);
 882                         break;
 883                 case POPPLER_DEST_FITH: {
 884                         PopplerPage *poppler_page;
 885                         double height;
 886
 887                         poppler_page = poppler_document_get_page (pdf_document->document,
 888                                                                   MAX (0, dest->page_num - 1));
 889                         poppler_page_get_size (poppler_page, NULL, &height);
 890                         ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
 891                                                          height - dest->top);
 892                         g_object_unref (poppler_page);
 893                 }
 894                         break;
 895                 case POPPLER_DEST_FITV:
 896                         ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
 897                                                          dest->left);
 898                         break;
 899                 case POPPLER_DEST_FITR: {
 900                         PopplerPage *poppler_page;
 901                         double height;
 902
 903                         poppler_page = poppler_document_get_page (pdf_document->document,
 904                                                                   MAX (0, dest->page_num - 1));
 905                         poppler_page_get_size (poppler_page, NULL, &height);
 906                         ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
 907                                                          dest->left,
 908                                                          height - dest->bottom,
 909                                                          dest->right,
 910                                                          height - dest->top);
 911                         g_object_unref (poppler_page);
 912                 }
 913                         break;
 914                 case POPPLER_DEST_FITB:
 915                         unimplemented_dest = "POPPLER_DEST_FITB";
 916                         break;
 917                 case POPPLER_DEST_FITBH:
 918                         unimplemented_dest = "POPPLER_DEST_FITBH";
 919                         break;
 920                 case POPPLER_DEST_FITBV:
 921                         unimplemented_dest = "POPPLER_DEST_FITBV";
 922                         break;
 923                 case POPPLER_DEST_NAMED:
 924                         ev_dest = ev_link_dest_new_named (dest->named_dest);
 925                         break;
 926                 case POPPLER_DEST_UNKNOWN:
 927                         unimplemented_dest = "POPPLER_DEST_UNKNOWN";
 928                         break;
 929         }
 930
 931         if (unimplemented_dest) {
 932                 g_warning ("Unimplemented named action: %s, please post a "
 933                            "bug report in Evince bugzilla "
 934                            "(http://bugzilla.gnome.org) with a testcase.",
 935                            unimplemented_dest);
 936         }
 937
 938         if (!ev_dest)
 939                 ev_dest = ev_link_dest_new_page (dest->page_num - 1);
 940
 941         return ev_dest;
 942 }
 943
 944 static EvLink *
 945 ev_link_from_action (PdfDocument   *pdf_document,
 946                      PopplerAction *action)
 947 {
 948         EvLink       *link = NULL;
 949         EvLinkAction *ev_action = NULL;
 950         const char   *unimplemented_action = NULL;
 951
 952         switch (action->type) {
 953                 case POPPLER_ACTION_GOTO_DEST: {
 954                         EvLinkDest *dest;
 955
 956                         dest = ev_link_dest_from_dest (pdf_document, action->goto_dest.dest);
 957                         ev_action = ev_link_action_new_dest (dest);
 958                 }
 959                         break;
 960                 case POPPLER_ACTION_GOTO_REMOTE: {
 961                         EvLinkDest *dest;
 962
 963                         dest = ev_link_dest_from_dest (pdf_document, action->goto_remote.dest);
 964                         ev_action = ev_link_action_new_remote (dest,
 965                                                                action->goto_remote.file_name);
 966
 967                 }
 968                         break;
 969                 case POPPLER_ACTION_LAUNCH:
 970                         ev_action = ev_link_action_new_launch (action->launch.file_name,
 971                                                                action->launch.params);
 972                         break;
 973                 case POPPLER_ACTION_URI:
 974                         ev_action = ev_link_action_new_external_uri (action->uri.uri);
 975                         break;
 976                 case POPPLER_ACTION_NAMED:
 977                         ev_action = ev_link_action_new_named (action->named.named_dest);
 978                         break;
 979                 case POPPLER_ACTION_MOVIE:
 980                         unimplemented_action = "POPPLER_ACTION_MOVIE";
 981                         break;
 982                 case POPPLER_ACTION_UNKNOWN:
 983                         unimplemented_action = "POPPLER_ACTION_UNKNOWN";
 984         }
 985
 986         if (unimplemented_action) {
 987                 g_warning ("Unimplemented action: %s, please post a bug report with a testcase.",
 988                            unimplemented_action);
 989         }
 990
 991         link = ev_link_new (action->any.title, ev_action);
 992
 993         return link;
 994 }
 995
 996 static void
 997 build_tree (PdfDocument      *pdf_document,
 998             GtkTreeModel     *model,
 999             GtkTreeIter      *parent,
1000             PopplerIndexIter *iter)
1001 {
1002
1003         do {
1004                 GtkTreeIter tree_iter;
1005                 PopplerIndexIter *child;
1006                 PopplerAction *action;
1007                 EvLink *link = NULL;
1008                 gboolean expand;
1009                 char *title_markup;
1010
1011                 action = poppler_index_iter_get_action (iter);
1012                 expand = poppler_index_iter_is_open (iter);
1013
1014                 if (!action)
1015                         continue;
1016
1017                 switch (action->type) {
1018                         case POPPLER_ACTION_GOTO_DEST: {
1019                                 /* For bookmarks, solve named destinations */
1020                                 if (action->goto_dest.dest->type == POPPLER_DEST_NAMED) {
1021                                         PopplerDest *dest;
1022                                         EvLinkDest *ev_dest = NULL;
1023                                         EvLinkAction *ev_action;
1024
1025                                         dest = poppler_document_find_dest (pdf_document->document,
1026                                                                            action->goto_dest.dest->named_dest);
1027                                         if (!dest) {
1028                                                 link = ev_link_from_action (pdf_document, action);
1029                                                 break;
1030                                         }
1031
1032                                         ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1033                                         poppler_dest_free (dest);
1034
1035                                         ev_action = ev_link_action_new_dest (ev_dest);
1036                                         link = ev_link_new (action->any.title, ev_action);
1037                                 } else {
1038                                         link = ev_link_from_action (pdf_document, action);
1039                                 }
1040                         }
1041                                 break;
1042                         default:
1043                                 link = ev_link_from_action (pdf_document, action);
1044                                 break;
1045                 }
1046
1047                 if (!link) {
1048                         poppler_action_free (action);
1049                         continue;
1050                 }
1051
1052                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
1053                 title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
1054
1055                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
1056                                     EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
1057                                     EV_DOCUMENT_LINKS_COLUMN_LINK, link,
1058                                     EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
1059                                     -1);
1060
1061                 g_free (title_markup);
1062                 g_object_unref (link);
1063
1064                 child = poppler_index_iter_get_child (iter);
1065                 if (child)
1066                         build_tree (pdf_document, model, &tree_iter, child);
1067                 poppler_index_iter_free (child);
1068                 poppler_action_free (action);
1069
1070         } while (poppler_index_iter_next (iter));
1071 }
1072
1073 static GtkTreeModel *
1074 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
1075 {
1076         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1077         GtkTreeModel *model = NULL;
1078         PopplerIndexIter *iter;
1079
1080         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
1081
1082         iter = poppler_index_iter_new (pdf_document->document);
1083         /* Create the model if we have items*/
1084         if (iter != NULL) {
1085                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
1086                                                              G_TYPE_STRING,
1087                                                              G_TYPE_OBJECT,
1088                                                              G_TYPE_BOOLEAN,
1089                                                              G_TYPE_STRING);
1090                 build_tree (pdf_document, model, NULL, iter);
1091                 poppler_index_iter_free (iter);
1092         }
1093
1094         return model;
1095 }
1096
1097 static GList *
1098 pdf_document_links_get_links (EvDocumentLinks *document_links,
1099                               gint             page)
1100 {
1101         PdfDocument *pdf_document;
1102         PopplerPage *poppler_page;
1103         GList *retval = NULL;
1104         GList *mapping_list;
1105         GList *list;
1106         double height;
1107
1108         pdf_document = PDF_DOCUMENT (document_links);
1109         poppler_page = poppler_document_get_page (pdf_document->document,
1110                                                   page);
1111         mapping_list = poppler_page_get_link_mapping (poppler_page);
1112         poppler_page_get_size (poppler_page, NULL, &height);
1113
1114         for (list = mapping_list; list; list = list->next) {
1115                 PopplerLinkMapping *link_mapping;
1116                 EvLinkMapping *ev_link_mapping;
1117
1118                 link_mapping = (PopplerLinkMapping *)list->data;
1119                 ev_link_mapping = g_new (EvLinkMapping, 1);
1120                 ev_link_mapping->link = ev_link_from_action (pdf_document,
1121                                                              link_mapping->action);
1122                 ev_link_mapping->x1 = link_mapping->area.x1;
1123                 ev_link_mapping->x2 = link_mapping->area.x2;
1124                 /* Invert this for X-style coordinates */
1125                 ev_link_mapping->y1 = height - link_mapping->area.y2;
1126                 ev_link_mapping->y2 = height - link_mapping->area.y1;
1127
1128                 retval = g_list_prepend (retval, ev_link_mapping);
1129         }
1130
1131         poppler_page_free_link_mapping (mapping_list);
1132         g_object_unref (poppler_page);
1133
1134         return g_list_reverse (retval);
1135 }
1136
1137 static EvLinkDest *
1138 pdf_document_links_find_link_dest (EvDocumentLinks  *document_links,
1139                                    const gchar      *link_name)
1140 {
1141         PdfDocument *pdf_document;
1142         PopplerDest *dest;
1143         EvLinkDest *ev_dest = NULL;
1144
1145         pdf_document = PDF_DOCUMENT (document_links);
1146         dest = poppler_document_find_dest (pdf_document->document,
1147                                            link_name);
1148         if (dest) {
1149                 ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1150                 poppler_dest_free (dest);
1151         }
1152
1153         return ev_dest;
1154 }
1155
1156 static void
1157 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
1158 {
1159         iface->has_document_links = pdf_document_links_has_document_links;
1160         iface->get_links_model = pdf_document_links_get_links_model;
1161         iface->get_links = pdf_document_links_get_links;
1162         iface->find_link_dest = pdf_document_links_find_link_dest;
1163 }
1164
1165 static GList *
1166 pdf_document_images_get_images (EvDocumentImages *document_images,
1167                                 gint              page)
1168 {
1169         GList *retval = NULL;
1170         PdfDocument *pdf_document;
1171         PopplerPage *poppler_page;
1172         GList *mapping_list;
1173         GList *list;
1174
1175         pdf_document = PDF_DOCUMENT (document_images);
1176         poppler_page = poppler_document_get_page (pdf_document->document, page);
1177         mapping_list = poppler_page_get_image_mapping (poppler_page);
1178
1179         for (list = mapping_list; list; list = list->next) {
1180                 PopplerImageMapping *image_mapping;
1181                 EvImageMapping *ev_image_mapping;
1182
1183                 image_mapping = (PopplerImageMapping *)list->data;
1184
1185                 ev_image_mapping = g_new (EvImageMapping, 1);
1186
1187                 ev_image_mapping->image = ev_image_new_from_pixbuf (image_mapping->image);
1188                 ev_image_mapping->x1 = image_mapping->area.x1;
1189                 ev_image_mapping->x2 = image_mapping->area.x2;
1190                 ev_image_mapping->y1 = image_mapping->area.y1;
1191                 ev_image_mapping->y2 = image_mapping->area.y2;
1192
1193                 retval = g_list_prepend (retval, ev_image_mapping);
1194         }
1195
1196         poppler_page_free_image_mapping (mapping_list);
1197         g_object_unref (poppler_page);
1198
1199         return retval;
1200 }
1201
1202 static void
1203 pdf_document_document_images_iface_init (EvDocumentImagesIface *iface)
1204 {
1205         iface->get_images = pdf_document_images_get_images;
1206 }
1207
1208 static GdkPixbuf *
1209 make_thumbnail_for_page (PdfDocument     *pdf_document,
1210                          PopplerPage     *poppler_page,
1211                          EvRenderContext *rc)
1212 {
1213         GdkPixbuf *pixbuf;
1214         int width, height;
1215
1216         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document),
1217                                                 rc, &width, &height);
1218
1219         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1220                                  width, height);
1221         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1222
1223         ev_document_fc_mutex_lock ();
1224         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1225                                        width, height,
1226                                        rc->scale, rc->rotation, pixbuf);
1227         ev_document_fc_mutex_unlock ();
1228
1229         return pixbuf;
1230 }
1231
1232 static GdkPixbuf *
1233 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1234                                        EvRenderContext      *rc,
1235                                        gboolean              border)
1236 {
1237         PdfDocument *pdf_document;
1238         PopplerPage *poppler_page;
1239         GdkPixbuf *pixbuf;
1240         GdkPixbuf *border_pixbuf;
1241
1242         pdf_document = PDF_DOCUMENT (document_thumbnails);
1243
1244         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1245         g_return_val_if_fail (poppler_page != NULL, NULL);
1246
1247         pixbuf = poppler_page_get_thumbnail (poppler_page);
1248         if (!pixbuf) {
1249                 /* There is no provided thumbnail.  We need to make one. */
1250                 pixbuf = make_thumbnail_for_page (pdf_document, poppler_page, rc);
1251         }
1252
1253         if (border) {
1254                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
1255                 g_object_unref (pixbuf);
1256                 pixbuf = border_pixbuf;
1257         }
1258
1259         g_object_unref (poppler_page);
1260
1261         return pixbuf;
1262 }
1263
1264 static void
1265 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1266                                         EvRenderContext      *rc,
1267                                         gint                 *width,
1268                                         gint                 *height)
1269 {
1270         PdfDocument *pdf_document;
1271         PopplerPage *poppler_page;
1272         gint has_thumb;
1273
1274         pdf_document = PDF_DOCUMENT (document_thumbnails);
1275         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1276
1277         g_return_if_fail (poppler_page != NULL);
1278
1279         has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
1280
1281         if (!has_thumb) {
1282                 double page_width, page_height;
1283
1284                 poppler_page_get_size (poppler_page, &page_width, &page_height);
1285
1286                 *width = (gint) MAX (page_width * rc->scale, 1);
1287                 *height = (gint) MAX (page_height * rc->scale, 1);
1288         }
1289
1290         if (rc->rotation == 90 || rc->rotation == 270) {
1291                 gint  temp;
1292
1293                 temp = *width;
1294                 *width = *height;
1295                 *height = temp;
1296         }
1297
1298         g_object_unref (poppler_page);
1299 }
1300
1301 static void
1302 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1303 {
1304         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1305         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1306 }
1307
1308
1309 static gboolean
1310 pdf_document_search_idle_callback (void *data)
1311 {
1312         PdfDocumentSearch *search = (PdfDocumentSearch*) data;
1313         PdfDocument *pdf_document = search->document;
1314         int n_pages;
1315         GList *matches;
1316         PopplerPage *page;
1317
1318         page = poppler_document_get_page (search->document->document,
1319                                           search->search_page);
1320
1321         ev_document_doc_mutex_lock ();
1322         matches = poppler_page_find_text (page, search->text);
1323         ev_document_doc_mutex_unlock ();
1324
1325         g_object_unref (page);
1326
1327         search->pages[search->search_page] = matches;
1328         ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document),
1329                                   search->search_page);
1330
1331         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document));
1332         search->search_page += 1;
1333         if (search->search_page == n_pages) {
1334                 /* wrap around */
1335                 search->search_page = 0;
1336         }
1337
1338         if (search->search_page != search->start_page) {
1339                 return TRUE;
1340         }
1341
1342         /* We're done. */
1343         search->idle = 0; /* will return FALSE to remove */
1344         return FALSE;
1345 }
1346
1347
1348 static PdfDocumentSearch *
1349 pdf_document_search_new (PdfDocument *pdf_document,
1350                          int          start_page,
1351                          const char  *text)
1352 {
1353         PdfDocumentSearch *search;
1354         int n_pages;
1355         int i;
1356
1357         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
1358
1359         search = g_new0 (PdfDocumentSearch, 1);
1360
1361         search->text = g_strdup (text);
1362         search->pages = g_new0 (GList *, n_pages);
1363         search->document = pdf_document;
1364
1365         /* We add at low priority so the progress bar repaints */
1366         search->idle = g_idle_add_full (G_PRIORITY_LOW,
1367                                         pdf_document_search_idle_callback,
1368                                         search,
1369                                         NULL);
1370
1371         search->start_page = start_page;
1372         search->search_page = start_page;
1373
1374         return search;
1375 }
1376
1377 static void
1378 pdf_document_find_begin (EvDocumentFind   *document,
1379                          int               page,
1380                          const char       *search_string,
1381                          gboolean          case_sensitive)
1382 {
1383         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1384
1385         /* FIXME handle case_sensitive (right now XPDF
1386          * code is always case insensitive for ASCII
1387          * and case sensitive for all other languaages)
1388          */
1389
1390         if (pdf_document->search &&
1391             strcmp (search_string, pdf_document->search->text) == 0)
1392                 return;
1393
1394         if (pdf_document->search)
1395                 pdf_document_search_free (pdf_document->search);
1396
1397         pdf_document->search = pdf_document_search_new (pdf_document,
1398                                                         page,
1399                                                         search_string);
1400 }
1401
1402 static int
1403 pdf_document_find_get_n_results (EvDocumentFind *document_find, int page)
1404 {
1405         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1406
1407         if (search) {
1408                 return g_list_length (search->pages[page]);
1409         } else {
1410                 return 0;
1411         }
1412 }
1413
1414 static gboolean
1415 pdf_document_find_get_result (EvDocumentFind *document_find,
1416                               int             page,
1417                               int             n_result,
1418                               EvRectangle    *rectangle)
1419 {
1420         PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
1421         PdfDocumentSearch *search = pdf_document->search;
1422         PopplerPage *poppler_page;
1423         PopplerRectangle *r;
1424         double height;
1425
1426         if (search == NULL)
1427                 return FALSE;
1428
1429         r = (PopplerRectangle *) g_list_nth_data (search->pages[page],
1430                                                   n_result);
1431         if (r == NULL)
1432                 return FALSE;
1433
1434         poppler_page = poppler_document_get_page (pdf_document->document, page);
1435         poppler_page_get_size (poppler_page, NULL, &height);
1436         rectangle->x1 = r->x1;
1437         rectangle->y1 = height - r->y2;
1438         rectangle->x2 = r->x2;
1439         rectangle->y2 = height - r->y1;
1440         g_object_unref (poppler_page);
1441
1442         return TRUE;
1443 }
1444
1445 static int
1446 pdf_document_find_page_has_results (EvDocumentFind *document_find,
1447                                     int             page)
1448 {
1449         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1450
1451         return search && search->pages[page] != NULL;
1452 }
1453
1454 static double
1455 pdf_document_find_get_progress (EvDocumentFind *document_find)
1456 {
1457         PdfDocumentSearch *search;
1458         int n_pages, pages_done;
1459
1460         search = PDF_DOCUMENT (document_find)->search;
1461
1462         if (search == NULL) {
1463                 return 0;
1464         }
1465
1466         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find));
1467         if (search->search_page > search->start_page) {
1468                 pages_done = search->search_page - search->start_page + 1;
1469         } else if (search->search_page == search->start_page) {
1470                 pages_done = n_pages;
1471         } else {
1472                 pages_done = n_pages - search->start_page + search->search_page;
1473         }
1474
1475         return pages_done / (double) n_pages;
1476 }
1477
1478 static void
1479 pdf_document_find_cancel (EvDocumentFind *document)
1480 {
1481         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1482
1483         if (pdf_document->search) {
1484                 pdf_document_search_free (pdf_document->search);
1485                 pdf_document->search = NULL;
1486         }
1487 }
1488
1489 static void
1490 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1491 {
1492         iface->begin = pdf_document_find_begin;
1493         iface->get_n_results = pdf_document_find_get_n_results;
1494         iface->get_result = pdf_document_find_get_result;
1495         iface->page_has_results = pdf_document_find_page_has_results;
1496         iface->get_progress = pdf_document_find_get_progress;
1497         iface->cancel = pdf_document_find_cancel;
1498 }
1499
1500 static const gboolean supported_formats[] = {
1501         TRUE, /* EV_FILE_FORMAT_PS */
1502 #ifdef HAVE_CAIRO_PDF
1503 #ifdef HAVE_POPPLER_PAGE_RENDER
1504         TRUE, /* EV_FILE_FORMAT_PDF */
1505 #else
1506         FALSE, /* EV_FILE_FORMAT_PDF */
1507 #endif
1508 #endif
1509 };
1510
1511 static void
1512 pdf_print_context_free (PdfPrintContext *ctx)
1513 {
1514         if (!ctx)
1515                 return;
1516
1517         if (ctx->ps_file) {
1518                 poppler_ps_file_free (ctx->ps_file);
1519                 ctx->ps_file = NULL;
1520         }
1521 #ifdef HAVE_CAIRO_PDF
1522         if (ctx->pdf_cairo) {
1523                 cairo_destroy (ctx->pdf_cairo);
1524                 ctx->pdf_cairo = NULL;
1525         }
1526 #endif
1527         g_free (ctx);
1528 }
1529
1530 static gboolean
1531 pdf_document_file_exporter_format_supported (EvFileExporter      *exporter,
1532                                              EvFileExporterFormat format)
1533 {
1534         return supported_formats[format];
1535 }
1536
1537 static void
1538 pdf_document_file_exporter_begin (EvFileExporter      *exporter,
1539                                   EvFileExporterFormat format,
1540                                   const char          *filename,
1541                                   int                  first_page,
1542                                   int                  last_page,
1543                                   double               width,
1544                                   double               height,
1545                                   gboolean             duplex)
1546 {
1547         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1548         PdfPrintContext *ctx;
1549
1550         if (pdf_document->print_ctx)
1551                 pdf_print_context_free (pdf_document->print_ctx);
1552         pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
1553         ctx = pdf_document->print_ctx;
1554         ctx->format = format;
1555
1556         switch (format) {
1557                 case EV_FILE_FORMAT_PS:
1558                         ctx->ps_file = poppler_ps_file_new (pdf_document->document,
1559                                                             filename, first_page,
1560                                                             last_page - first_page + 1);
1561                         poppler_ps_file_set_paper_size (ctx->ps_file, width, height);
1562                         poppler_ps_file_set_duplex (ctx->ps_file, duplex);
1563
1564                         break;
1565                 case EV_FILE_FORMAT_PDF: {
1566 #ifdef HAVE_CAIRO_PDF
1567                         cairo_surface_t *surface;
1568
1569                         surface = cairo_pdf_surface_create (filename, width, height);
1570                         ctx->pdf_cairo = cairo_create (surface);
1571                         cairo_surface_destroy (surface);
1572 #endif
1573                 }
1574                         break;
1575                 default:
1576                         g_assert_not_reached ();
1577         }
1578 }
1579
1580 static void
1581 pdf_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
1582 {
1583         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1584         PdfPrintContext *ctx = pdf_document->print_ctx;
1585         PopplerPage *poppler_page;
1586
1587         g_return_if_fail (pdf_document->print_ctx != NULL);
1588
1589         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1590
1591         switch (ctx->format) {
1592                 case EV_FILE_FORMAT_PS:
1593                         poppler_page_render_to_ps (poppler_page, ctx->ps_file);
1594                         break;
1595                 case EV_FILE_FORMAT_PDF:
1596 #ifdef HAVE_CAIRO_PDF
1597                         cairo_save (ctx->pdf_cairo);
1598 #endif
1599 #ifdef HAVE_POPPLER_PAGE_RENDER
1600                         poppler_page_render (poppler_page, ctx->pdf_cairo);
1601 #endif
1602 #ifdef HAVE_CAIRO_PDF
1603                         cairo_show_page (ctx->pdf_cairo);
1604                         cairo_restore (ctx->pdf_cairo);
1605 #endif
1606                         break;
1607                 default:
1608                         g_assert_not_reached ();
1609         }
1610
1611         g_object_unref (poppler_page);
1612 }
1613
1614 static void
1615 pdf_document_file_exporter_end (EvFileExporter *exporter)
1616 {
1617         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1618
1619         pdf_print_context_free (pdf_document->print_ctx);
1620         pdf_document->print_ctx = NULL;
1621 }
1622
1623 static void
1624 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
1625 {
1626         iface->format_supported = pdf_document_file_exporter_format_supported;
1627         iface->begin = pdf_document_file_exporter_begin;
1628         iface->do_page = pdf_document_file_exporter_do_page;
1629         iface->end = pdf_document_file_exporter_end;
1630 }
1631
1632 static void
1633 pdf_selection_render_selection (EvSelection      *selection,
1634                                 EvRenderContext  *rc,
1635                                 cairo_surface_t **surface,
1636                                 EvRectangle      *points,
1637                                 EvRectangle      *old_points,
1638                                 GdkColor         *text,
1639                                 GdkColor         *base)
1640 {
1641         PdfDocument *pdf_document;
1642         double width_points, height_points;
1643         gint width, height;
1644
1645         pdf_document = PDF_DOCUMENT (selection);
1646         set_rc_data (pdf_document, rc);
1647
1648         poppler_page_get_size (POPPLER_PAGE (rc->data),
1649                                &width_points, &height_points);
1650         width = (int) ((width_points * rc->scale) + 0.5);
1651         height = (int) ((height_points * rc->scale) + 0.5);
1652
1653
1654 #ifdef HAVE_POPPLER_PAGE_RENDER
1655         cairo_t *cr;
1656
1657         if (*surface == NULL) {
1658                 *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
1659                                                        width, height);
1660
1661         }
1662
1663         cr = cairo_create (*surface);
1664         cairo_scale (cr, rc->scale, rc->scale);
1665         cairo_surface_set_device_offset (*surface, 0, 0);
1666         memset (cairo_image_surface_get_data (*surface), 0x00,
1667                 cairo_image_surface_get_height (*surface) *
1668                 cairo_image_surface_get_stride (*surface));
1669         poppler_page_render_selection (POPPLER_PAGE (rc->data),
1670                                        cr,
1671                                        (PopplerRectangle *)points,
1672                                        (PopplerRectangle *)old_points,
1673                                        POPPLER_SELECTION_NORMAL, /* SelectionStyle */
1674                                        text,
1675                                        base);
1676         cairo_destroy (cr);
1677 #else /* HAVE_POPPLER_PAGE_RENDER */
1678         GdkPixbuf *pixbuf;
1679
1680         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1681                                  TRUE, 8,
1682                                  width, height);
1683
1684         poppler_page_render_selection_to_pixbuf (POPPLER_PAGE (rc->data),
1685                                                  rc->scale, rc->rotation, pixbuf,
1686                                                  (PopplerRectangle *)points,
1687                                                  (PopplerRectangle *)old_points,
1688                                                  POPPLER_SELECTION_NORMAL, /* SelectionStyle */
1689                                                  text,
1690                                                  base);
1691         if (*surface)
1692                 cairo_surface_destroy (*surface);
1693         *surface = ev_document_misc_surface_from_pixbuf (pixbuf);
1694         g_object_unref (pixbuf);
1695 #endif /* HAVE_POPPLER_PAGE_RENDER */
1696 }
1697
1698
1699 static GdkRegion *
1700 pdf_selection_get_selection_region (EvSelection     *selection,
1701                                     EvRenderContext *rc,
1702                                     EvRectangle     *points)
1703 {
1704         PdfDocument *pdf_document;
1705         GdkRegion *retval;
1706
1707         pdf_document = PDF_DOCUMENT (selection);
1708
1709         set_rc_data (pdf_document, rc);
1710
1711         retval = poppler_page_get_selection_region ((PopplerPage *)rc->data,
1712                                                     rc->scale,
1713                                                     (PopplerRectangle *) points);
1714         return retval;
1715 }
1716
1717 static GdkRegion *
1718 pdf_selection_get_selection_map (EvSelection     *selection,
1719                                  EvRenderContext *rc)
1720 {
1721         PdfDocument *pdf_document;
1722         PopplerPage *poppler_page;
1723         PopplerRectangle points;
1724         GdkRegion *retval;
1725
1726         pdf_document = PDF_DOCUMENT (selection);
1727         poppler_page = poppler_document_get_page (pdf_document->document,
1728                                                   rc->page);
1729
1730         points.x1 = 0.0;
1731         points.y1 = 0.0;
1732         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
1733         retval = poppler_page_get_selection_region (poppler_page, 1.0, &points);
1734         g_object_unref (poppler_page);
1735
1736         return retval;
1737 }
1738
1739 static void
1740 pdf_selection_iface_init (EvSelectionIface *iface)
1741 {
1742         iface->render_selection = pdf_selection_render_selection;
1743         iface->get_selection_region = pdf_selection_get_selection_region;
1744         iface->get_selection_map = pdf_selection_get_selection_map;
1745 }
1746
1747 /* Page Transitions */
1748 static gdouble
1749 pdf_document_get_page_duration (EvDocumentTransition *trans,
1750                                 gint                  page)
1751 {
1752         PdfDocument *pdf_document;
1753         PopplerPage *poppler_page;
1754         gdouble      duration = -1;
1755
1756         pdf_document = PDF_DOCUMENT (trans);
1757         poppler_page = poppler_document_get_page (pdf_document->document, page);
1758         if (!poppler_page)
1759                 return -1;
1760
1761         duration = poppler_page_get_duration (poppler_page);
1762         g_object_unref (poppler_page);
1763
1764         return duration;
1765 }
1766
1767 static void
1768 pdf_document_page_transition_iface_init (EvDocumentTransitionIface *iface)
1769 {
1770         iface->get_page_duration = pdf_document_get_page_duration;
1771 }
1772
1773 PdfDocument *
1774 pdf_document_new (void)
1775 {
1776         return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
1777 }