pdf/ev-poppler.cc

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* pdfdocument.h: Implementation of EvDocument for PDF
   3  * Copyright (C) 2004, Red Hat, Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2, or (at your option)
   8  * any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <math.h>
  21 #include <string.h>
  22 #include <gtk/gtk.h>
  23 #include <poppler.h>
  24 #include <poppler-document.h>
  25 #include <poppler-page.h>
  26 #include <glib/gi18n.h>
  27
  28 #include "ev-poppler.h"
  29 #include "ev-ps-exporter.h"
  30 #include "ev-document-find.h"
  31 #include "ev-document-misc.h"
  32 #include "ev-document-links.h"
  33 #include "ev-document-fonts.h"
  34 #include "ev-document-security.h"
  35 #include "ev-document-thumbnails.h"
  36 #include "ev-selection.h"
  37
  38 typedef struct {
  39         PdfDocument *document;
  40         char *text;
  41         GList **pages;
  42         guint idle;
  43         int start_page;
  44         int search_page;
  45 } PdfDocumentSearch;
  46
  47 struct _PdfDocumentClass
  48 {
  49         GObjectClass parent_class;
  50 };
  51
  52 struct _PdfDocument
  53 {
  54         GObject parent_instance;
  55
  56         PopplerDocument *document;
  57         PopplerPSFile *ps_file;
  58         gchar *password;
  59
  60         PopplerFontInfo *font_info;
  61         PopplerFontsIter *fonts_iter;
  62         int fonts_scanned_pages;
  63
  64         PdfDocumentSearch *search;
  65 };
  66
  67 static void pdf_document_document_iface_init            (EvDocumentIface           *iface);
  68 static void pdf_document_security_iface_init            (EvDocumentSecurityIface   *iface);
  69 static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
  70 static void pdf_document_document_links_iface_init      (EvDocumentLinksIface      *iface);
  71 static void pdf_document_document_fonts_iface_init      (EvDocumentFontsIface      *iface);
  72 static void pdf_document_find_iface_init                (EvDocumentFindIface       *iface);
  73 static void pdf_document_ps_exporter_iface_init         (EvPSExporterIface         *iface);
  74 static void pdf_selection_iface_init                    (EvSelectionIface          *iface);
  75 static void pdf_document_thumbnails_get_dimensions      (EvDocumentThumbnails      *document_thumbnails,
  76                                                          gint                       page,
  77                                                          gint                       size,
  78                                                          gint                      *width,
  79                                                          gint                      *height);
  80 static int  pdf_document_get_n_pages                    (EvDocument                *document);
  81
  82 static EvLink * ev_link_from_action (PopplerAction *action);
  83 static void pdf_document_search_free (PdfDocumentSearch   *search);
  84
  85
  86 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
  87                          {
  88                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
  89                                                         pdf_document_document_iface_init);
  90                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
  91                                                         pdf_document_security_iface_init);
  92                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
  93                                                         pdf_document_document_thumbnails_iface_init);
  94                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
  95                                                         pdf_document_document_links_iface_init);
  96                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
  97                                                         pdf_document_document_fonts_iface_init);
  98                                  G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
  99                                                         pdf_document_find_iface_init);
 100                                  G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER,
 101                                                         pdf_document_ps_exporter_iface_init);
 102                                  G_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 103                                                         pdf_selection_iface_init);
 104                          });
 105
 106
 107 static void
 108 set_rc_data (PdfDocument     *pdf_document,
 109              EvRenderContext *rc)
 110 {
 111         if (rc->data == NULL) {
 112                 rc->data = poppler_document_get_page (pdf_document->document,
 113                                                       rc->page);
 114                 rc->destroy = g_object_unref;
 115         } else {
 116                 g_assert (rc->page == poppler_page_get_index (POPPLER_PAGE (rc->data)));
 117         }
 118 }
 119
 120 static void
 121 pdf_document_search_free (PdfDocumentSearch   *search)
 122 {
 123         PdfDocument *pdf_document = search->document;
 124         int n_pages;
 125         int i;
 126
 127         if (search->idle != 0)
 128                 g_source_remove (search->idle);
 129
 130         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 131         for (i = 0; i < n_pages; i++) {
 132                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 133                 g_list_free (search->pages[i]);
 134         }
 135
 136         g_free (search->text);
 137 }
 138
 139 static void
 140 pdf_document_dispose (GObject *object)
 141 {
 142         PdfDocument *pdf_document = PDF_DOCUMENT(object);
 143
 144         if (pdf_document->search) {
 145                 pdf_document_search_free (pdf_document->search);
 146                 pdf_document->search = NULL;
 147         }
 148
 149         if (pdf_document->document) {
 150                 g_object_unref (pdf_document->document);
 151         }
 152
 153         if (pdf_document->font_info) {
 154                 poppler_font_info_free (pdf_document->font_info);
 155         }
 156
 157         if (pdf_document->fonts_iter) {
 158                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 159         }
 160 }
 161
 162 static void
 163 pdf_document_class_init (PdfDocumentClass *klass)
 164 {
 165         GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
 166
 167         g_object_class->dispose = pdf_document_dispose;
 168 }
 169
 170 static void
 171 pdf_document_init (PdfDocument *pdf_document)
 172 {
 173         pdf_document->password = NULL;
 174 }
 175
 176 static void
 177 convert_error (GError  *poppler_error,
 178                GError **error)
 179 {
 180         if (poppler_error == NULL)
 181                 return;
 182
 183         if (poppler_error->domain == POPPLER_ERROR) {
 184                 /* convert poppler errors into EvDocument errors */
 185                 gint code = EV_DOCUMENT_ERROR_INVALID;
 186                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 187                         code = EV_DOCUMENT_ERROR_INVALID;
 188                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 189                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 190
 191
 192                 g_set_error (error,
 193                              EV_DOCUMENT_ERROR,
 194                              code,
 195                              poppler_error->message,
 196                              NULL);
 197         } else {
 198                 g_propagate_error (error, poppler_error);
 199         }
 200 }
 201
 202
 203 /* EvDocument */
 204 static gboolean
 205 pdf_document_save (EvDocument  *document,
 206                    const char  *uri,
 207                    GError     **error)
 208 {
 209         gboolean retval;
 210         GError *poppler_error = NULL;
 211
 212         retval = poppler_document_save (PDF_DOCUMENT (document)->document,
 213                                         uri,
 214                                         &poppler_error);
 215         if (! retval)
 216                 convert_error (poppler_error, error);
 217
 218         return retval;
 219 }
 220
 221 static gboolean
 222 pdf_document_load (EvDocument   *document,
 223                    const char   *uri,
 224                    GError      **error)
 225 {
 226         GError *poppler_error = NULL;
 227         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 228
 229         pdf_document->document =
 230                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 231
 232         if (pdf_document->document == NULL) {
 233                 convert_error (poppler_error, error);
 234                 return FALSE;
 235         }
 236
 237         return TRUE;
 238 }
 239
 240 static int
 241 pdf_document_get_n_pages (EvDocument *document)
 242 {
 243         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 244 }
 245
 246 static void
 247 pdf_document_get_page_size (EvDocument   *document,
 248                             int           page,
 249                             double       *width,
 250                             double       *height)
 251 {
 252         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 253         PopplerPage *poppler_page;
 254
 255         poppler_page = poppler_document_get_page (pdf_document->document, page);
 256         poppler_page_get_size (poppler_page, width, height);
 257         g_object_unref (poppler_page);
 258 }
 259
 260 static char *
 261 pdf_document_get_page_label (EvDocument *document,
 262                              int         page)
 263 {
 264         PopplerPage *poppler_page;
 265         char *label = NULL;
 266
 267         poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
 268                                                   page);
 269
 270         g_object_get (G_OBJECT (poppler_page),
 271                       "label", &label,
 272                       NULL);
 273         g_object_unref (poppler_page);
 274
 275         return label;
 276 }
 277
 278 static GList *
 279 pdf_document_get_links (EvDocument *document,
 280                         int         page)
 281 {
 282         PdfDocument *pdf_document;
 283         PopplerPage *poppler_page;
 284         GList *retval = NULL;
 285         GList *mapping_list;
 286         GList *list;
 287         double height;
 288
 289         pdf_document = PDF_DOCUMENT (document);
 290         poppler_page = poppler_document_get_page (pdf_document->document,
 291                                                   page);
 292         mapping_list = poppler_page_get_link_mapping (poppler_page);
 293         poppler_page_get_size (poppler_page, NULL, &height);
 294
 295         for (list = mapping_list; list; list = list->next) {
 296                 PopplerLinkMapping *link_mapping;
 297                 EvLinkMapping *ev_link_mapping;
 298
 299                 link_mapping = (PopplerLinkMapping *)list->data;
 300                 ev_link_mapping = g_new (EvLinkMapping, 1);
 301                 ev_link_mapping->link = ev_link_from_action (link_mapping->action);
 302                 ev_link_mapping->x1 = link_mapping->area.x1;
 303                 ev_link_mapping->x2 = link_mapping->area.x2;
 304                 /* Invert this for X-style coordinates */
 305                 ev_link_mapping->y1 = height - link_mapping->area.y2;
 306                 ev_link_mapping->y2 = height - link_mapping->area.y1;
 307
 308                 retval = g_list_prepend (retval, ev_link_mapping);
 309         }
 310
 311         poppler_page_free_link_mapping (mapping_list);
 312         g_object_unref (poppler_page);
 313
 314         return g_list_reverse (retval);
 315 }
 316
 317
 318 static GdkPixbuf *
 319 pdf_document_render_pixbuf (EvDocument   *document,
 320                             EvRenderContext *rc)
 321 {
 322         PdfDocument *pdf_document;
 323         GdkPixbuf *pixbuf;
 324         double width_points, height_points;
 325         gint width, height;
 326
 327         pdf_document = PDF_DOCUMENT (document);
 328
 329         set_rc_data (pdf_document, rc);
 330
 331         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
 332
 333         if (rc->rotation == 90 || rc->rotation == 270) {
 334                 width = (int) ((height_points * rc->scale) + 0.5);
 335                 height = (int) ((width_points * rc->scale) + 0.5);
 336         } else {
 337                 width = (int) ((width_points * rc->scale) + 0.5);
 338                 height = (int) ((height_points * rc->scale) + 0.5);
 339         }
 340
 341         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 342                                  FALSE, 8,
 343                                  width, height);
 344
 345         poppler_page_render_to_pixbuf (POPPLER_PAGE (rc->data),
 346                                        0, 0,
 347                                        width, height,
 348                                        rc->scale,
 349                                        rc->rotation,
 350                                        pixbuf);
 351
 352
 353         return pixbuf;
 354 }
 355
 356 /* EvDocumentSecurity */
 357
 358 static gboolean
 359 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 360 {
 361         /* FIXME: do we really need to have this? */
 362         return FALSE;
 363 }
 364
 365 static void
 366 pdf_document_set_password (EvDocumentSecurity *document_security,
 367                            const char         *password)
 368 {
 369         PdfDocument *document = PDF_DOCUMENT (document_security);
 370
 371         if (document->password)
 372                 g_free (document->password);
 373
 374         document->password = g_strdup (password);
 375 }
 376
 377 static gboolean
 378 pdf_document_can_get_text (EvDocument *document)
 379 {
 380         return TRUE;
 381 }
 382
 383 static EvDocumentInfo *
 384 pdf_document_get_info (EvDocument *document)
 385 {
 386         EvDocumentInfo *info;
 387         PopplerPageLayout layout;
 388         PopplerPageMode mode;
 389         PopplerViewerPreferences view_prefs;
 390         PopplerPermissions permissions;
 391
 392         info = g_new0 (EvDocumentInfo, 1);
 393
 394         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 395                             EV_DOCUMENT_INFO_FORMAT |
 396                             EV_DOCUMENT_INFO_AUTHOR |
 397                             EV_DOCUMENT_INFO_SUBJECT |
 398                             EV_DOCUMENT_INFO_KEYWORDS |
 399                             EV_DOCUMENT_INFO_LAYOUT |
 400                             EV_DOCUMENT_INFO_START_MODE |
 401                             EV_DOCUMENT_INFO_PERMISSIONS |
 402                             EV_DOCUMENT_INFO_UI_HINTS |
 403                             EV_DOCUMENT_INFO_CREATOR |
 404                             EV_DOCUMENT_INFO_PRODUCER |
 405                             EV_DOCUMENT_INFO_CREATION_DATE |
 406                             EV_DOCUMENT_INFO_MOD_DATE |
 407                             EV_DOCUMENT_INFO_LINEARIZED |
 408                             EV_DOCUMENT_INFO_N_PAGES |
 409                             EV_DOCUMENT_INFO_SECURITY;
 410
 411
 412         g_object_get (PDF_DOCUMENT (document)->document,
 413                       "title", &(info->title),
 414                       "format", &(info->format),
 415                       "author", &(info->author),
 416                       "subject", &(info->subject),
 417                       "keywords", &(info->keywords),
 418                       "page-mode", &mode,
 419                       "page-layout", &layout,
 420                       "viewer-preferences", &view_prefs,
 421                       "permissions", &permissions,
 422                       "creator", &(info->creator),
 423                       "producer", &(info->producer),
 424                       "creation-date", &(info->creation_date),
 425                       "mod-date", &(info->modified_date),
 426                       "linearized", &(info->linearized),
 427                       NULL);
 428
 429         switch (layout) {
 430                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 431                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 432                         break;
 433                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 434                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 435                         break;
 436                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 437                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 438                         break;
 439                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 440                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 441                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 442                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 443                         break;
 444                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 445                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 446                         break;
 447                 default:
 448                         break;
 449         }
 450
 451         switch (mode) {
 452                 case POPPLER_PAGE_MODE_NONE:
 453                         info->mode = EV_DOCUMENT_MODE_NONE;
 454                         break;
 455                 case POPPLER_PAGE_MODE_USE_THUMBS:
 456                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 457                         break;
 458                 case POPPLER_PAGE_MODE_USE_OC:
 459                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 460                         break;
 461                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 462                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 463                         break;
 464                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 465                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 466                 default:
 467                         break;
 468         }
 469
 470         info->ui_hints = 0;
 471         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 472                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 473         }
 474         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 475                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 476         }
 477         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 478                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 479         }
 480         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 481                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 482         }
 483         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 484                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 485         }
 486         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 487                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 488         }
 489         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 490                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 491         }
 492
 493         info->permissions = 0;
 494         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 495                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 496         }
 497         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 498                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 499         }
 500         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 501                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 502         }
 503         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 504                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 505         }
 506
 507         info->n_pages = ev_document_get_n_pages (document);
 508
 509         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 510                 /* translators: this is the document security state */
 511                 info->security = g_strdup (_("Yes"));
 512         } else {
 513                 /* translators: this is the document security state */
 514                 info->security = g_strdup (_("No"));
 515         }
 516
 517         return info;
 518 }
 519
 520 static char *
 521 pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect)
 522 {
 523         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 524         PopplerPage *poppler_page;
 525         PopplerRectangle r;
 526         double height;
 527         char *text;
 528
 529         poppler_page = poppler_document_get_page (pdf_document->document, page);
 530         g_return_val_if_fail (poppler_page != NULL, NULL);
 531
 532         poppler_page_get_size (poppler_page, NULL, &height);
 533         r.x1 = rect->x1;
 534         r.y1 = height - rect->y2;
 535         r.x2 = rect->x2;
 536         r.y2 = height - rect->y1;
 537
 538         text = poppler_page_get_text (poppler_page, &r);
 539
 540         g_object_unref (poppler_page);
 541
 542         return text;
 543 }
 544
 545 static void
 546 pdf_document_document_iface_init (EvDocumentIface *iface)
 547 {
 548         iface->save = pdf_document_save;
 549         iface->load = pdf_document_load;
 550         iface->get_n_pages = pdf_document_get_n_pages;
 551         iface->get_page_size = pdf_document_get_page_size;
 552         iface->get_page_label = pdf_document_get_page_label;
 553         iface->get_links = pdf_document_get_links;
 554         iface->render_pixbuf = pdf_document_render_pixbuf;
 555         iface->get_text = pdf_document_get_text;
 556         iface->can_get_text = pdf_document_can_get_text;
 557         iface->get_info = pdf_document_get_info;
 558 };
 559
 560 static void
 561 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 562 {
 563         iface->has_document_security = pdf_document_has_document_security;
 564         iface->set_password = pdf_document_set_password;
 565 }
 566
 567 static gdouble
 568 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 569 {
 570         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 571         int n_pages;
 572
 573         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 574
 575         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 576 }
 577
 578 static gboolean
 579 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 580                          int              n_pages)
 581 {
 582         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 583         gboolean result;
 584
 585         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 586
 587         if (pdf_document->font_info == NULL) {
 588                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 589         }
 590
 591         if (pdf_document->fonts_iter) {
 592                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 593         }
 594
 595         pdf_document->fonts_scanned_pages += n_pages;
 596
 597         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 598                                          &pdf_document->fonts_iter);
 599         if (!result) {
 600                 pdf_document->fonts_scanned_pages = 0;
 601                 poppler_font_info_free (pdf_document->font_info);
 602                 pdf_document->font_info = NULL;
 603         }
 604
 605         return result;
 606 }
 607
 608 static const char *
 609 font_type_to_string (PopplerFontType type)
 610 {
 611         switch (type)
 612         {
 613         case POPPLER_FONT_TYPE_TYPE1:
 614                 return _("Type 1");
 615         case POPPLER_FONT_TYPE_TYPE1C:
 616                 return _("Type 1C");
 617         case POPPLER_FONT_TYPE_TYPE3:
 618                 return _("Type 3");
 619         case POPPLER_FONT_TYPE_TRUETYPE:
 620                 return _("TrueType");
 621         case POPPLER_FONT_TYPE_CID_TYPE0:
 622                 return _("Type 1 (CID)");
 623         case POPPLER_FONT_TYPE_CID_TYPE0C:
 624                 return _("Type 1C (CID)");
 625         case POPPLER_FONT_TYPE_CID_TYPE2:
 626                 return _("TrueType (CID)");
 627         default:
 628                 return _("Unknown font type");
 629         }
 630 }
 631
 632 static void
 633 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 634                                GtkTreeModel    *model)
 635 {
 636         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 637         PopplerFontsIter *iter = pdf_document->fonts_iter;
 638
 639         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 640
 641         if (!iter)
 642                 return;
 643
 644         do {
 645                 GtkTreeIter list_iter;
 646                 const char *name;
 647                 const char *type;
 648                 const char *embedded;
 649                 char *details;
 650
 651                 name = poppler_fonts_iter_get_name (iter);
 652
 653                 if (name == NULL) {
 654                         name = _("No name");
 655                 }
 656
 657                 type = font_type_to_string (
 658                         poppler_fonts_iter_get_font_type (iter));
 659
 660                 if (poppler_fonts_iter_is_embedded (iter)) {
 661                         if (poppler_fonts_iter_is_subset (iter))
 662                                 embedded = _("Embedded subset");
 663                         else
 664                                 embedded = _("Embedded");
 665                 } else {
 666                         embedded = _("Not embedded");
 667                 }
 668
 669                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 670
 671                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 672                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 673                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 674                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 675                                     -1);
 676
 677                 g_free (details);
 678         } while (poppler_fonts_iter_next (iter));
 679 }
 680
 681 static void
 682 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 683 {
 684         iface->fill_model = pdf_document_fonts_fill_model;
 685         iface->scan = pdf_document_fonts_scan;
 686         iface->get_progress = pdf_document_fonts_get_progress;
 687 }
 688
 689 static gboolean
 690 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
 691 {
 692         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 693         PopplerIndexIter *iter;
 694
 695         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
 696
 697         iter = poppler_index_iter_new (pdf_document->document);
 698         if (iter == NULL)
 699                 return FALSE;
 700         poppler_index_iter_free (iter);
 701
 702         return TRUE;
 703 }
 704
 705 static EvLink *
 706 ev_link_from_action (PopplerAction *action)
 707 {
 708         EvLink *link;
 709         const char *title;
 710
 711         title = action->any.title;
 712
 713         if (action->type == POPPLER_ACTION_GOTO_DEST) {
 714                 link = ev_link_new_page (title, action->goto_dest.dest->page_num - 1);
 715         } else if (action->type == POPPLER_ACTION_URI) {
 716                 link = ev_link_new_external (title, action->uri.uri);
 717         } else {
 718                 link = ev_link_new_title (title);
 719         }
 720
 721         return link;
 722 }
 723
 724 static void
 725 build_tree (PdfDocument      *pdf_document,
 726             GtkTreeModel     *model,
 727             GtkTreeIter      *parent,
 728             PopplerIndexIter *iter)
 729 {
 730
 731         do {
 732                 GtkTreeIter tree_iter;
 733                 PopplerIndexIter *child;
 734                 PopplerAction *action;
 735                 EvLink *link;
 736                 gboolean expand;
 737
 738                 action = poppler_index_iter_get_action (iter);
 739                 expand = poppler_index_iter_is_open (iter);
 740                 if (action) {
 741                         gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
 742                         link = ev_link_from_action (action);
 743                         poppler_action_free (action);
 744
 745                         gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
 746                                             EV_DOCUMENT_LINKS_COLUMN_MARKUP, ev_link_get_title (link),
 747                                             EV_DOCUMENT_LINKS_COLUMN_LINK, link,
 748                                             EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
 749                                             -1);
 750                         g_object_unref (link);
 751                         child = poppler_index_iter_get_child (iter);
 752                         if (child)
 753                                 build_tree (pdf_document, model, &tree_iter, child);
 754                         poppler_index_iter_free (child);
 755                 }
 756         } while (poppler_index_iter_next (iter));
 757 }
 758
 759
 760 static GtkTreeModel *
 761 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
 762 {
 763         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
 764         GtkTreeModel *model = NULL;
 765         PopplerIndexIter *iter;
 766
 767         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
 768
 769         iter = poppler_index_iter_new (pdf_document->document);
 770         /* Create the model if we have items*/
 771         if (iter != NULL) {
 772                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
 773                                                              G_TYPE_STRING,
 774                                                              G_TYPE_OBJECT,
 775                                                              G_TYPE_BOOLEAN);
 776                 build_tree (pdf_document, model, NULL, iter);
 777                 poppler_index_iter_free (iter);
 778         }
 779
 780         return model;
 781 }
 782
 783 static void
 784 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
 785 {
 786         iface->has_document_links = pdf_document_links_has_document_links;
 787         iface->get_links_model = pdf_document_links_get_links_model;
 788 }
 789
 790 static GdkPixbuf *
 791 make_thumbnail_for_size (PdfDocument   *pdf_document,
 792                          gint           page,
 793                          int            rotation,
 794                          gint           size,
 795                          gboolean       border)
 796 {
 797         PopplerPage *poppler_page;
 798         GdkPixbuf *pixbuf, *sub_pixbuf;
 799         int width, height;
 800         double scale;
 801         gdouble unscaled_width, unscaled_height;
 802
 803         poppler_page = poppler_document_get_page (pdf_document->document, page);
 804         g_return_val_if_fail (poppler_page != NULL, NULL);
 805
 806         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page,
 807                                                 size, &width, &height);
 808         poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
 809         scale = width / unscaled_width;
 810
 811         if (border) {
 812                 pixbuf = ev_document_misc_get_thumbnail_frame (width, height, NULL);
 813
 814                 sub_pixbuf = gdk_pixbuf_new_subpixbuf (pixbuf,
 815                                                        1, 1,
 816                                                        width - 1, height - 1);
 817         } else {
 818                 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
 819                                          width, height);
 820                 gdk_pixbuf_fill (pixbuf, 0xffffffff);
 821                 sub_pixbuf = gdk_pixbuf_new_subpixbuf (pixbuf,
 822                                                        0, 0,
 823                                                        width, height);
 824         }
 825
 826         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
 827                                        width, height,
 828                                        scale, rotation, sub_pixbuf);
 829
 830         g_object_unref (G_OBJECT (sub_pixbuf));
 831
 832         g_object_unref (poppler_page);
 833         return pixbuf;
 834 }
 835
 836 static GdkPixbuf *
 837 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
 838                                        gint                  page,
 839                                        gint                  rotation,
 840                                        gint                  size,
 841                                        gboolean              border)
 842 {
 843         PdfDocument *pdf_document;
 844         PopplerPage *poppler_page;
 845         GdkPixbuf *pixbuf;
 846
 847         pdf_document = PDF_DOCUMENT (document_thumbnails);
 848
 849         poppler_page = poppler_document_get_page (pdf_document->document, page);
 850         g_return_val_if_fail (poppler_page != NULL, NULL);
 851
 852         pixbuf = poppler_page_get_thumbnail (poppler_page);
 853
 854         if (pixbuf != NULL) {
 855                 /* The document provides its own thumbnails. */
 856                 if (border) {
 857                         GdkPixbuf *real_pixbuf;
 858
 859                         real_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
 860                         g_object_unref (pixbuf);
 861                         pixbuf = real_pixbuf;
 862                 }
 863         } else {
 864                 /* There is no provided thumbnail.  We need to make one. */
 865                 pixbuf = make_thumbnail_for_size (pdf_document, page, rotation, size, border);
 866         }
 867
 868         g_object_unref (poppler_page);
 869
 870         return pixbuf;
 871 }
 872
 873 static void
 874 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
 875                                         gint                  page,
 876                                         gint                  size,
 877                                         gint                 *width,
 878                                         gint                 *height)
 879 {
 880         PdfDocument *pdf_document;
 881         PopplerPage *poppler_page;
 882         gint has_thumb;
 883
 884         pdf_document = PDF_DOCUMENT (document_thumbnails);
 885         poppler_page = poppler_document_get_page (pdf_document->document, page);
 886
 887         g_return_if_fail (width != NULL);
 888         g_return_if_fail (height != NULL);
 889         g_return_if_fail (poppler_page != NULL);
 890
 891         has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
 892
 893         if (!has_thumb) {
 894                 double page_width, page_height;
 895
 896                 poppler_page_get_size (poppler_page, &page_width, &page_height);
 897                 if (page_width > page_height) {
 898                         *width = size;
 899                         *height = (int) (size * page_height / page_width);
 900                 } else {
 901                         *width = (int) (size * page_width / page_height);
 902                         *height = size;
 903                 }
 904         }
 905         g_object_unref (poppler_page);
 906 }
 907
 908 static void
 909 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
 910 {
 911         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
 912         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
 913 }
 914
 915
 916 static gboolean
 917 pdf_document_search_idle_callback (void *data)
 918 {
 919         PdfDocumentSearch *search = (PdfDocumentSearch*) data;
 920         PdfDocument *pdf_document = search->document;
 921         int n_pages;
 922         GList *matches;
 923         PopplerPage *page;
 924
 925         page = poppler_document_get_page (search->document->document,
 926                                           search->search_page);
 927
 928         ev_document_doc_mutex_lock ();
 929         matches = poppler_page_find_text (page, search->text);
 930         ev_document_doc_mutex_unlock ();
 931
 932         g_object_unref (page);
 933
 934         search->pages[search->search_page] = matches;
 935         ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document),
 936                                   search->search_page);
 937
 938         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document));
 939         search->search_page += 1;
 940         if (search->search_page == n_pages) {
 941                 /* wrap around */
 942                 search->search_page = 0;
 943         }
 944
 945         if (search->search_page != search->start_page) {
 946                 return TRUE;
 947         }
 948
 949         /* We're done. */
 950         search->idle = 0; /* will return FALSE to remove */
 951         return FALSE;
 952 }
 953
 954
 955 static PdfDocumentSearch *
 956 pdf_document_search_new (PdfDocument *pdf_document,
 957                          int          start_page,
 958                          const char  *text)
 959 {
 960         PdfDocumentSearch *search;
 961         int n_pages;
 962         int i;
 963
 964         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 965
 966         search = g_new0 (PdfDocumentSearch, 1);
 967
 968         search->text = g_strdup (text);
 969         search->pages = g_new0 (GList *, n_pages);
 970         for (i = 0; i < n_pages; i++) {
 971                 search->pages[i] = NULL;
 972         }
 973
 974         search->document = pdf_document;
 975
 976         /* We add at low priority so the progress bar repaints */
 977         search->idle = g_idle_add_full (G_PRIORITY_LOW,
 978                                         pdf_document_search_idle_callback,
 979                                         search,
 980                                         NULL);
 981
 982         search->start_page = start_page;
 983         search->search_page = start_page;
 984
 985         return search;
 986 }
 987
 988 static void
 989 pdf_document_find_begin (EvDocumentFind   *document,
 990                          int               page,
 991                          const char       *search_string,
 992                          gboolean          case_sensitive)
 993 {
 994         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 995
 996         /* FIXME handle case_sensitive (right now XPDF
 997          * code is always case insensitive for ASCII
 998          * and case sensitive for all other languaages)
 999          */
1000
1001         if (pdf_document->search &&
1002             strcmp (search_string, pdf_document->search->text) == 0)
1003                 return;
1004
1005         if (pdf_document->search)
1006                 pdf_document_search_free (pdf_document->search);
1007
1008         pdf_document->search = pdf_document_search_new (pdf_document,
1009                                                         page,
1010                                                         search_string);
1011 }
1012
1013 int
1014 pdf_document_find_get_n_results (EvDocumentFind *document_find, int page)
1015 {
1016         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1017
1018         if (search) {
1019                 return g_list_length (search->pages[page]);
1020         } else {
1021                 return 0;
1022         }
1023 }
1024
1025 gboolean
1026 pdf_document_find_get_result (EvDocumentFind *document_find,
1027                               int             page,
1028                               int             n_result,
1029                               EvRectangle    *rectangle)
1030 {
1031         PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
1032         PdfDocumentSearch *search = pdf_document->search;
1033         PopplerPage *poppler_page;
1034         PopplerRectangle *r;
1035         double height;
1036
1037         if (search == NULL)
1038                 return FALSE;
1039
1040         r = (PopplerRectangle *) g_list_nth_data (search->pages[page],
1041                                                   n_result);
1042         if (r == NULL)
1043                 return FALSE;
1044
1045         poppler_page = poppler_document_get_page (pdf_document->document, page);
1046         poppler_page_get_size (poppler_page, NULL, &height);
1047         rectangle->x1 = r->x1;
1048         rectangle->y1 = height - r->y2;
1049         rectangle->x2 = r->x2;
1050         rectangle->y2 = height - r->y1;
1051         g_object_unref (poppler_page);
1052
1053         return TRUE;
1054 }
1055
1056 int
1057 pdf_document_find_page_has_results (EvDocumentFind *document_find,
1058                                     int             page)
1059 {
1060         PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
1061
1062         g_return_val_if_fail (search != NULL, FALSE);
1063
1064         return search->pages[page] != NULL;
1065 }
1066
1067 double
1068 pdf_document_find_get_progress (EvDocumentFind *document_find)
1069 {
1070         PdfDocumentSearch *search;
1071         int n_pages, pages_done;
1072
1073         search = PDF_DOCUMENT (document_find)->search;
1074
1075         if (search == NULL) {
1076                 return 0;
1077         }
1078
1079         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find));
1080         if (search->search_page > search->start_page) {
1081                 pages_done = search->search_page - search->start_page + 1;
1082         } else if (search->search_page == search->start_page) {
1083                 pages_done = n_pages;
1084         } else {
1085                 pages_done = n_pages - search->start_page + search->search_page;
1086         }
1087
1088         return pages_done / (double) n_pages;
1089 }
1090
1091 static void
1092 pdf_document_find_cancel (EvDocumentFind *document)
1093 {
1094         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1095
1096         if (pdf_document->search) {
1097                 pdf_document_search_free (pdf_document->search);
1098                 pdf_document->search = NULL;
1099         }
1100 }
1101
1102 static void
1103 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1104 {
1105         iface->begin = pdf_document_find_begin;
1106         iface->get_n_results = pdf_document_find_get_n_results;
1107         iface->get_result = pdf_document_find_get_result;
1108         iface->page_has_results = pdf_document_find_page_has_results;
1109         iface->get_progress = pdf_document_find_get_progress;
1110         iface->cancel = pdf_document_find_cancel;
1111 }
1112
1113 static void
1114 pdf_document_ps_exporter_begin (EvPSExporter *exporter, const char *filename,
1115                                 int first_page, int last_page,
1116                                 double width, double height, gboolean duplex)
1117 {
1118         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1119
1120         pdf_document->ps_file = poppler_ps_file_new (pdf_document->document, filename,
1121                                                      first_page,
1122                                                      last_page - first_page + 1);
1123         poppler_ps_file_set_paper_size (pdf_document->ps_file, width, height);
1124         poppler_ps_file_set_duplex (pdf_document->ps_file, duplex);
1125 }
1126
1127 static void
1128 pdf_document_ps_exporter_do_page (EvPSExporter *exporter, EvRenderContext *rc)
1129 {
1130         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1131         PopplerPage *poppler_page;
1132
1133         g_return_if_fail (pdf_document->ps_file != NULL);
1134
1135         poppler_page = poppler_document_get_page (pdf_document->document, rc->page);
1136         poppler_page_render_to_ps (poppler_page, pdf_document->ps_file);
1137         g_object_unref (poppler_page);
1138 }
1139
1140 static void
1141 pdf_document_ps_exporter_end (EvPSExporter *exporter)
1142 {
1143         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1144
1145         poppler_ps_file_free (pdf_document->ps_file);
1146         pdf_document->ps_file = NULL;
1147 }
1148
1149 static void
1150 pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface)
1151 {
1152         iface->begin = pdf_document_ps_exporter_begin;
1153         iface->do_page = pdf_document_ps_exporter_do_page;
1154         iface->end = pdf_document_ps_exporter_end;
1155 }
1156
1157
1158 void
1159 pdf_selection_render_selection (EvSelection      *selection,
1160                                 EvRenderContext  *rc,
1161                                 GdkPixbuf       **pixbuf,
1162                                 EvRectangle      *points,
1163                                 EvRectangle      *old_points,
1164                                 GdkColor        *text,
1165                                 GdkColor        *base)
1166 {
1167         PdfDocument *pdf_document;
1168         double width_points, height_points;
1169         gint width, height;
1170
1171         pdf_document = PDF_DOCUMENT (selection);
1172         set_rc_data (pdf_document, rc);
1173
1174         poppler_page_get_size (POPPLER_PAGE (rc->data), &width_points, &height_points);
1175         width = (int) ((width_points * rc->scale) + 0.5);
1176         height = (int) ((height_points * rc->scale) + 0.5);
1177
1178         if (*pixbuf == NULL) {
1179                 * pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1180                                            TRUE, 8,
1181                                            width, height);
1182         }
1183
1184         poppler_page_render_selection (POPPLER_PAGE (rc->data),
1185                                        rc->scale, *pixbuf,
1186                                        (PopplerRectangle *)points,
1187                                        (PopplerRectangle *)old_points,
1188                                        text,
1189                                        base);
1190 }
1191
1192
1193 GdkRegion *
1194 pdf_selection_get_selection_region (EvSelection     *selection,
1195                                     EvRenderContext *rc,
1196                                     EvRectangle     *points)
1197 {
1198         PdfDocument *pdf_document;
1199         GdkRegion *retval;
1200
1201         pdf_document = PDF_DOCUMENT (selection);
1202
1203         set_rc_data (pdf_document, rc);
1204
1205         retval = poppler_page_get_selection_region ((PopplerPage *)rc->data, rc->scale, (PopplerRectangle *) points);
1206
1207         return retval;
1208 }
1209
1210 GdkRegion *
1211 pdf_selection_get_selection_map (EvSelection     *selection,
1212                                  EvRenderContext *rc)
1213 {
1214         PdfDocument *pdf_document;
1215         PopplerPage *poppler_page;
1216         PopplerRectangle points;
1217         GdkRegion *retval;
1218
1219         pdf_document = PDF_DOCUMENT (selection);
1220         poppler_page = poppler_document_get_page (pdf_document->document,
1221                                                   rc->page);
1222
1223         points.x1 = 0.0;
1224         points.y1 = 0.0;
1225         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
1226         retval = poppler_page_get_selection_region (poppler_page, 1.0, &points);
1227         g_object_unref (poppler_page);
1228
1229         return retval;
1230 }
1231
1232 static void
1233 pdf_selection_iface_init (EvSelectionIface *iface)
1234 {
1235         iface->render_selection = pdf_selection_render_selection;
1236         iface->get_selection_region = pdf_selection_get_selection_region;
1237         iface->get_selection_map = pdf_selection_get_selection_map;
1238 }
1239
1240 PdfDocument *
1241 pdf_document_new (void)
1242 {
1243         return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
1244 }