backend/pdf/ev-poppler.cc

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  * Copyright (C) 2009, Juanjo Marín <juanj.marin@juntadeandalucia.es>
   5  * Copyright (C) 2004, Red Hat, Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  */
  21
  22 #include "config.h"
  23
  24 #include <math.h>
  25 #include <string.h>
  26 #include <gtk/gtk.h>
  27 #include <poppler.h>
  28 #include <poppler-document.h>
  29 #include <poppler-page.h>
  30 #ifdef HAVE_CAIRO_PDF
  31 #include <cairo-pdf.h>
  32 #endif
  33 #ifdef HAVE_CAIRO_PS
  34 #include <cairo-ps.h>
  35 #endif
  36 #include <glib/gi18n-lib.h>
  37
  38 #include "ev-poppler.h"
  39 #include "ev-file-exporter.h"
  40 #include "ev-mapping.h"
  41 #include "ev-document-find.h"
  42 #include "ev-document-misc.h"
  43 #include "ev-document-links.h"
  44 #include "ev-document-images.h"
  45 #include "ev-document-fonts.h"
  46 #include "ev-document-security.h"
  47 #include "ev-document-thumbnails.h"
  48 #include "ev-document-transition.h"
  49 #include "ev-document-forms.h"
  50 #include "ev-document-layers.h"
  51 #include "ev-document-print.h"
  52 #include "ev-document-annotations.h"
  53 #include "ev-document-attachments.h"
  54 #include "ev-selection.h"
  55 #include "ev-transition-effect.h"
  56 #include "ev-attachment.h"
  57 #include "ev-image.h"
  58
  59 #include <libxml/tree.h>
  60 #include <libxml/parser.h>
  61 #include <libxml/xpath.h>
  62 #include <libxml/xpathInternals.h>
  63
  64 #if (defined (HAVE_POPPLER_PAGE_RENDER)) && (defined (HAVE_CAIRO_PDF) || defined (HAVE_CAIRO_PS))
  65 #define HAVE_CAIRO_PRINT
  66 #endif
  67
  68 /* fields from the XMP Rights Management Schema, XMP Specification Sept 2005, pag. 45 */
  69 #define LICENSE_MARKED "/x:xmpmeta/rdf:RDF/rdf:Description/xmpRights:Marked"
  70 #define LICENSE_TEXT "/x:xmpmeta/rdf:RDF/rdf:Description/dc:rights/rdf:Alt/rdf:li[lang('%s')]"
  71 #define LICENSE_WEB_STATEMENT "/x:xmpmeta/rdf:RDF/rdf:Description/xmpRights:WebStatement"
  72 /* license field from Creative Commons schema, http://creativecommons.org/ns */
  73 #define LICENSE_URI "/x:xmpmeta/rdf:RDF/rdf:Description/cc:license/@rdf:resource"
  74
  75 typedef struct {
  76         PdfDocument *document;
  77         char *text;
  78         GList **pages;
  79         guint idle;
  80         int start_page;
  81         int search_page;
  82 } PdfDocumentSearch;
  83
  84 typedef struct {
  85         EvFileExporterFormat format;
  86
  87         /* Pages per sheet */
  88         gint pages_per_sheet;
  89         gint pages_printed;
  90         gint pages_x;
  91         gint pages_y;
  92         gdouble paper_width;
  93         gdouble paper_height;
  94
  95 #ifdef HAVE_CAIRO_PRINT
  96         cairo_t *cr;
  97 #else
  98         PopplerPSFile *ps_file;
  99 #endif
 100 } PdfPrintContext;
 101
 102 struct _PdfDocumentClass
 103 {
 104         EvDocumentClass parent_class;
 105 };
 106
 107 struct _PdfDocument
 108 {
 109         EvDocument parent_instance;
 110
 111         PopplerDocument *document;
 112         gchar *password;
 113         gboolean modified;
 114
 115         PopplerFontInfo *font_info;
 116         PopplerFontsIter *fonts_iter;
 117         int fonts_scanned_pages;
 118
 119         PdfDocumentSearch *search;
 120         PdfPrintContext *print_ctx;
 121
 122         GList *layers;
 123 };
 124
 125 static void pdf_document_security_iface_init             (EvDocumentSecurityInterface    *iface);
 126 static void pdf_document_document_thumbnails_iface_init  (EvDocumentThumbnailsInterface  *iface);
 127 static void pdf_document_document_links_iface_init       (EvDocumentLinksInterface       *iface);
 128 static void pdf_document_document_images_iface_init      (EvDocumentImagesInterface      *iface);
 129 static void pdf_document_document_forms_iface_init       (EvDocumentFormsInterface       *iface);
 130 static void pdf_document_document_fonts_iface_init       (EvDocumentFontsInterface       *iface);
 131 static void pdf_document_document_layers_iface_init      (EvDocumentLayersInterface      *iface);
 132 #ifdef HAVE_POPPLER_PAGE_RENDER
 133 static void pdf_document_document_print_iface_init       (EvDocumentPrintInterface       *iface);
 134 #endif
 135 static void pdf_document_document_annotations_iface_init (EvDocumentAnnotationsInterface *iface);
 136 static void pdf_document_document_attachments_iface_init (EvDocumentAttachmentsInterface *iface);
 137 static void pdf_document_find_iface_init                 (EvDocumentFindInterface        *iface);
 138 static void pdf_document_file_exporter_iface_init        (EvFileExporterInterface        *iface);
 139 static void pdf_selection_iface_init                     (EvSelectionInterface           *iface);
 140 static void pdf_document_page_transition_iface_init      (EvDocumentTransitionInterface  *iface);
 141 static void pdf_document_thumbnails_get_dimensions       (EvDocumentThumbnails           *document_thumbnails,
 142                                                           EvRenderContext                *rc,
 143                                                           gint                           *width,
 144                                                           gint                           *height);
 145 static int  pdf_document_get_n_pages                     (EvDocument                     *document);
 146
 147 static EvLinkDest *ev_link_dest_from_dest    (PdfDocument       *pdf_document,
 148                                               PopplerDest       *dest);
 149 static EvLink     *ev_link_from_action       (PdfDocument       *pdf_document,
 150                                               PopplerAction     *action);
 151 static void        pdf_document_search_free  (PdfDocumentSearch *search);
 152 static void        pdf_print_context_free    (PdfPrintContext   *ctx);
 153 static gboolean    attachment_save_to_buffer (PopplerAttachment *attachment,
 154                                               gchar            **buffer,
 155                                               gsize             *buffer_size,
 156                                               GError           **error);
 157
 158 EV_BACKEND_REGISTER_WITH_CODE (PdfDocument, pdf_document,
 159                          {
 160                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
 161                                                                  pdf_document_security_iface_init);
 162                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
 163                                                                  pdf_document_document_thumbnails_iface_init);
 164                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
 165                                                                  pdf_document_document_links_iface_init);
 166                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_IMAGES,
 167                                                                  pdf_document_document_images_iface_init);
 168                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FORMS,
 169                                                                  pdf_document_document_forms_iface_init);
 170                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
 171                                                                  pdf_document_document_fonts_iface_init);
 172                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LAYERS,
 173                                                                  pdf_document_document_layers_iface_init);
 174 #ifdef HAVE_POPPLER_PAGE_RENDER
 175                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_PRINT,
 176                                                                  pdf_document_document_print_iface_init);
 177 #endif
 178                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_ANNOTATIONS,
 179                                                                  pdf_document_document_annotations_iface_init);
 180                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_ATTACHMENTS,
 181                                                                  pdf_document_document_attachments_iface_init);
 182                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
 183                                                                  pdf_document_find_iface_init);
 184                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER,
 185                                                                  pdf_document_file_exporter_iface_init);
 186                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 187                                                                  pdf_selection_iface_init);
 188                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_TRANSITION,
 189                                                                  pdf_document_page_transition_iface_init);
 190                          });
 191
 192 static void
 193 pdf_document_search_free (PdfDocumentSearch   *search)
 194 {
 195         PdfDocument *pdf_document = search->document;
 196         int n_pages;
 197         int i;
 198
 199         if (search->idle != 0)
 200                 g_source_remove (search->idle);
 201
 202         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 203         for (i = 0; i < n_pages; i++) {
 204                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 205                 g_list_free (search->pages[i]);
 206         }
 207         g_free (search->pages);
 208
 209         g_free (search->text);
 210         g_free (search);
 211 }
 212
 213 static void
 214 pdf_document_dispose (GObject *object)
 215 {
 216         PdfDocument *pdf_document = PDF_DOCUMENT(object);
 217
 218         if (pdf_document->print_ctx) {
 219                 pdf_print_context_free (pdf_document->print_ctx);
 220                 pdf_document->print_ctx = NULL;
 221         }
 222
 223         if (pdf_document->search) {
 224                 pdf_document_search_free (pdf_document->search);
 225                 pdf_document->search = NULL;
 226         }
 227
 228         if (pdf_document->document) {
 229                 g_object_unref (pdf_document->document);
 230         }
 231
 232         if (pdf_document->font_info) {
 233                 poppler_font_info_free (pdf_document->font_info);
 234         }
 235
 236         if (pdf_document->fonts_iter) {
 237                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 238         }
 239
 240         if (pdf_document->layers) {
 241                 g_list_foreach (pdf_document->layers, (GFunc)g_object_unref, NULL);
 242                 g_list_free (pdf_document->layers);
 243         }
 244
 245         G_OBJECT_CLASS (pdf_document_parent_class)->dispose (object);
 246 }
 247
 248 static void
 249 pdf_document_init (PdfDocument *pdf_document)
 250 {
 251         pdf_document->password = NULL;
 252 }
 253
 254 static void
 255 convert_error (GError  *poppler_error,
 256                GError **error)
 257 {
 258         if (poppler_error == NULL)
 259                 return;
 260
 261         if (poppler_error->domain == POPPLER_ERROR) {
 262                 /* convert poppler errors into EvDocument errors */
 263                 gint code = EV_DOCUMENT_ERROR_INVALID;
 264                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 265                         code = EV_DOCUMENT_ERROR_INVALID;
 266                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 267                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 268
 269                 g_set_error_literal (error,
 270                                      EV_DOCUMENT_ERROR,
 271                                      code,
 272                                      poppler_error->message);
 273
 274                 g_error_free (poppler_error);
 275         } else {
 276                 g_propagate_error (error, poppler_error);
 277         }
 278 }
 279
 280
 281 /* EvDocument */
 282 static gboolean
 283 pdf_document_save (EvDocument  *document,
 284                    const char  *uri,
 285                    GError     **error)
 286 {
 287         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 288         gboolean retval;
 289         GError *poppler_error = NULL;
 290
 291         if (pdf_document->modified) {
 292                 retval = poppler_document_save (pdf_document->document,
 293                                                 uri, &poppler_error);
 294         } else {
 295                 retval = poppler_document_save_a_copy (pdf_document->document,
 296                                                        uri, &poppler_error);
 297         }
 298
 299         if (! retval)
 300                 convert_error (poppler_error, error);
 301
 302         return retval;
 303 }
 304
 305 static gboolean
 306 pdf_document_load (EvDocument   *document,
 307                    const char   *uri,
 308                    GError      **error)
 309 {
 310         GError *poppler_error = NULL;
 311         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 312
 313         pdf_document->document =
 314                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 315
 316         if (pdf_document->document == NULL) {
 317                 convert_error (poppler_error, error);
 318                 return FALSE;
 319         }
 320
 321         return TRUE;
 322 }
 323
 324 static int
 325 pdf_document_get_n_pages (EvDocument *document)
 326 {
 327         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 328 }
 329
 330 static EvPage *
 331 pdf_document_get_page (EvDocument *document,
 332                        gint        index)
 333 {
 334         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 335         PopplerPage *poppler_page;
 336         EvPage      *page;
 337
 338         poppler_page = poppler_document_get_page (pdf_document->document, index);
 339         page = ev_page_new (index);
 340         page->backend_page = (EvBackendPage)g_object_ref (poppler_page);
 341         page->backend_destroy_func = (EvBackendPageDestroyFunc)g_object_unref;
 342         g_object_unref (poppler_page);
 343
 344         return page;
 345 }
 346
 347 static void
 348 pdf_document_get_page_size (EvDocument *document,
 349                             EvPage     *page,
 350                             double     *width,
 351                             double     *height)
 352 {
 353         g_return_if_fail (POPPLER_IS_PAGE (page->backend_page));
 354
 355         poppler_page_get_size (POPPLER_PAGE (page->backend_page), width, height);
 356 }
 357
 358 static char *
 359 pdf_document_get_page_label (EvDocument *document,
 360                              EvPage     *page)
 361 {
 362         char *label = NULL;
 363
 364         g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
 365
 366         g_object_get (G_OBJECT (page->backend_page),
 367                       "label", &label,
 368                       NULL);
 369         return label;
 370 }
 371
 372 static cairo_surface_t *
 373 pdf_page_render (PopplerPage     *page,
 374                  gint             width,
 375                  gint             height,
 376                  EvRenderContext *rc)
 377 {
 378         cairo_surface_t *surface;
 379
 380 #ifdef HAVE_POPPLER_PAGE_RENDER
 381         cairo_t *cr;
 382
 383         surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
 384                                               width, height);
 385         cr = cairo_create (surface);
 386
 387         switch (rc->rotation) {
 388                 case 90:
 389                         cairo_translate (cr, width, 0);
 390                         break;
 391                 case 180:
 392                         cairo_translate (cr, width, height);
 393                         break;
 394                 case 270:
 395                         cairo_translate (cr, 0, height);
 396                         break;
 397                 default:
 398                         cairo_translate (cr, 0, 0);
 399         }
 400         cairo_scale (cr, rc->scale, rc->scale);
 401         cairo_rotate (cr, rc->rotation * G_PI / 180.0);
 402         poppler_page_render (page, cr);
 403
 404         cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OVER);
 405         cairo_set_source_rgb (cr, 1., 1., 1.);
 406         cairo_paint (cr);
 407
 408         cairo_destroy (cr);
 409 #else /* HAVE_POPPLER_PAGE_RENDER */
 410         GdkPixbuf *pixbuf;
 411
 412         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 413                                  FALSE, 8,
 414                                  width, height);
 415
 416         poppler_page_render_to_pixbuf (page,
 417                                        0, 0,
 418                                        width, height,
 419                                        rc->scale,
 420                                        rc->rotation,
 421                                        pixbuf);
 422         surface = ev_document_misc_surface_from_pixbuf (pixbuf);
 423         g_object_unref (pixbuf);
 424 #endif /* HAVE_POPPLER_PAGE_RENDER */
 425
 426         return surface;
 427 }
 428
 429 static cairo_surface_t *
 430 pdf_document_render (EvDocument      *document,
 431                      EvRenderContext *rc)
 432 {
 433         PdfDocument *pdf_document;
 434         PopplerPage *poppler_page;
 435         double width_points, height_points;
 436         gint width, height;
 437
 438         poppler_page = POPPLER_PAGE (rc->page->backend_page);
 439
 440         poppler_page_get_size (poppler_page,
 441                                &width_points, &height_points);
 442
 443         if (rc->rotation == 90 || rc->rotation == 270) {
 444                 width = (int) ((height_points * rc->scale) + 0.5);
 445                 height = (int) ((width_points * rc->scale) + 0.5);
 446         } else {
 447                 width = (int) ((width_points * rc->scale) + 0.5);
 448                 height = (int) ((height_points * rc->scale) + 0.5);
 449         }
 450
 451         return pdf_page_render (poppler_page,
 452                                 width, height, rc);
 453 }
 454
 455 /* reference:
 456 http://www.pdfa.org/lib/exe/fetch.php?id=pdfa%3Aen%3Atechdoc&cache=cache&media=pdfa:techdoc:tn0001_pdfa-1_and_namespaces_2008-03-18.pdf */
 457 static char *
 458 pdf_document_get_format_from_metadata (xmlDocPtr          doc,
 459                                        xmlXPathContextPtr xpathCtx)
 460 {
 461         xmlXPathObjectPtr xpathObj;
 462         xmlChar *part = NULL;
 463         xmlChar *conf = NULL;
 464         char *result = NULL;
 465         int i;
 466
 467         /* add pdf/a namespaces */
 468         xmlXPathRegisterNs (xpathCtx, BAD_CAST "x", BAD_CAST "adobe:ns:meta/");
 469         xmlXPathRegisterNs (xpathCtx, BAD_CAST "rdf", BAD_CAST "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
 470         xmlXPathRegisterNs (xpathCtx, BAD_CAST "pdfaid", BAD_CAST "http://www.aiim.org/pdfa/ns/id/");
 471
 472         /* reads pdf/a part */
 473         /* first syntax: child node */
 474         xpathObj = xmlXPathEvalExpression (BAD_CAST "/x:xmpmeta/rdf:RDF/rdf:Description/pdfaid:part", xpathCtx);
 475         if (xpathObj != NULL) {
 476                 if (xpathObj->nodesetval != NULL && xpathObj->nodesetval->nodeNr != 0)
 477                         part = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 478
 479                 xmlXPathFreeObject (xpathObj);
 480         }
 481         if (part == NULL) {
 482                 /* second syntax: attribute */
 483                 xpathObj = xmlXPathEvalExpression (BAD_CAST "/x:xmpmeta/rdf:RDF/rdf:Description/@pdfaid:part", xpathCtx);
 484                 if (xpathObj != NULL) {
 485                         if (xpathObj->nodesetval != NULL && xpathObj->nodesetval->nodeNr != 0)
 486                                 part = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 487
 488                         xmlXPathFreeObject (xpathObj);
 489                 }
 490         }
 491
 492         /* reads pdf/a conformance */
 493         /* first syntax: child node */
 494         xpathObj = xmlXPathEvalExpression (BAD_CAST "/x:xmpmeta/rdf:RDF/rdf:Description/pdfaid:conformance", xpathCtx);
 495         if (xpathObj != NULL) {
 496                 if (xpathObj->nodesetval != NULL && xpathObj->nodesetval->nodeNr != 0)
 497                         conf = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 498
 499                 xmlXPathFreeObject (xpathObj);
 500         }
 501         if (conf == NULL) {
 502                 /* second syntax: attribute */
 503                 xpathObj = xmlXPathEvalExpression (BAD_CAST "/x:xmpmeta/rdf:RDF/rdf:Description/@pdfaid:conformance", xpathCtx);
 504                 if (xpathObj != NULL) {
 505                         if (xpathObj->nodesetval != NULL && xpathObj->nodesetval->nodeNr != 0)
 506                                 conf = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 507
 508                         xmlXPathFreeObject (xpathObj);
 509                 }
 510         }
 511
 512         if (part != NULL && conf != NULL) {
 513                 /* makes conf lowercase */
 514                 for (i = 0; conf[i]; i++)
 515                         conf[i] = g_ascii_tolower (conf[i]);
 516
 517                 /* return buffer */
 518                 result = g_strdup_printf ("PDF/A - %s%s", part, conf);
 519         }
 520
 521         /* Cleanup */
 522         xmlFree (part);
 523         xmlFree (conf);
 524
 525         return result;
 526 }
 527
 528 static EvDocumentLicense *
 529 pdf_document_get_license_from_metadata (xmlDocPtr          doc,
 530                                         xmlXPathContextPtr xpathCtx)
 531 {
 532         xmlXPathObjectPtr xpathObj;
 533         xmlChar *marked = NULL;
 534         const char *language_string;
 535         char  *aux;
 536         gchar **tags;
 537         gchar *tag, *tag_aux;
 538         int i, j;
 539         EvDocumentLicense *license;
 540
 541         /* register namespaces */
 542         xmlXPathRegisterNs (xpathCtx, BAD_CAST "x", BAD_CAST "adobe:ns:meta/");
 543         xmlXPathRegisterNs (xpathCtx, BAD_CAST "rdf", BAD_CAST "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
 544         xmlXPathRegisterNs (xpathCtx, BAD_CAST "dc", BAD_CAST "http://purl.org/dc/elements/1.1/");
 545         /* XMP Rights Management Schema */
 546         xmlXPathRegisterNs (xpathCtx, BAD_CAST "xmpRights", BAD_CAST "http://ns.adobe.com/xap/1.0/rights/");
 547         /* Creative Commons Schema */
 548         xmlXPathRegisterNs (xpathCtx, BAD_CAST "cc", BAD_CAST "http://creativecommons.org/ns#");
 549
 550         /* checking if the document has been marked as defined on the XMP Rights
 551          * Management Schema */
 552         xpathObj = xmlXPathEvalExpression (BAD_CAST LICENSE_MARKED, xpathCtx);
 553         if (xpathObj != NULL) {
 554                 if (xpathObj->nodesetval != NULL &&
 555                     xpathObj->nodesetval->nodeNr != 0)
 556                         marked = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 557                 xmlXPathFreeObject (xpathObj);
 558         }
 559
 560         /* a) Not marked => No XMP Rights information */
 561         if (!marked) {
 562                 xmlFree (marked);
 563                 return NULL;
 564         }
 565
 566         license = ev_document_license_new ();
 567
 568         /* b) Marked False => Public Domain, no copyrighted material and no
 569          * license needed */
 570         if (g_strrstr ((char *) marked, "False") != NULL) {
 571                 license->text = g_strdup (_("This work is in the Public Domain"));
 572         /* c) Marked True => Copyrighted material */
 573         } else {
 574                 /* Checking usage terms as defined by the XMP Rights Management
 575                  * Schema. This field is recomended to be checked by Creative
 576                  * Commons */
 577                 /* 1) checking for a suitable localized string */
 578                 language_string = pango_language_to_string (gtk_get_default_language ());
 579                 tags = g_strsplit (language_string, "-", -1);
 580                 i = g_strv_length (tags);
 581                 while (i-- && !license->text) {
 582                         tag = g_strdup (tags[0]);
 583                         for (j = 1; j <= i; j++) {
 584                                 tag_aux = g_strdup_printf ("%s-%s", tag, tags[j]);
 585                                 g_free (tag);
 586                                 tag = tag_aux;
 587                         }
 588                         aux = g_strdup_printf (LICENSE_TEXT, tag);
 589                         xpathObj = xmlXPathEvalExpression (BAD_CAST aux, xpathCtx);
 590                         if (xpathObj != NULL) {
 591                                 if (xpathObj->nodesetval != NULL &&
 592                                     xpathObj->nodesetval->nodeNr != 0)
 593                                         license->text = (gchar *)xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 594                                 xmlXPathFreeObject (xpathObj);
 595                         }
 596                         g_free (tag);
 597                         g_free (aux);
 598                 }
 599                 g_strfreev(tags);
 600
 601                 /* 2) if not, use the default string */
 602                 if (!license->text) {
 603                         aux = g_strdup_printf (LICENSE_TEXT, "x-default");
 604                         xpathObj = xmlXPathEvalExpression (BAD_CAST aux, xpathCtx);
 605                         if (xpathObj != NULL) {
 606                                 if (xpathObj->nodesetval != NULL &&
 607                                     xpathObj->nodesetval->nodeNr != 0)
 608                                         license->text = (gchar *)xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 609                                 xmlXPathFreeObject (xpathObj);
 610                         }
 611                         g_free (aux);
 612                 }
 613
 614                 /* Checking the license URI as defined by the Creative Commons
 615                  * Schema. This field is recomended to be checked by Creative
 616                  * Commons */
 617                 xpathObj = xmlXPathEvalExpression (BAD_CAST LICENSE_URI, xpathCtx);
 618                 if (xpathObj != NULL) {
 619                         if (xpathObj->nodesetval != NULL &&
 620                             xpathObj->nodesetval->nodeNr != 0)
 621                                 license->uri = (gchar *)xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 622                         xmlXPathFreeObject (xpathObj);
 623                 }
 624
 625                 /* Checking the web statement as defined by the XMP Rights
 626                  * Management Schema. Checking it out is a sort of above-and-beyond
 627                  * the basic recommendations by Creative Commons. It can be
 628                  * considered as a "reinforcement" approach to add certainty. */
 629                 xpathObj = xmlXPathEvalExpression (BAD_CAST LICENSE_WEB_STATEMENT, xpathCtx);
 630                 if (xpathObj != NULL) {
 631                         if (xpathObj->nodesetval != NULL &&
 632                             xpathObj->nodesetval->nodeNr != 0)
 633                                 license->web_statement = (gchar *)xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 634                         xmlXPathFreeObject (xpathObj);
 635                 }
 636         }
 637         xmlFree (marked);
 638
 639         if (!license->text && !license->uri && !license->web_statement) {
 640                 ev_document_license_free (license);
 641                 return NULL;
 642         }
 643
 644         return license;
 645 }
 646
 647 static void
 648 pdf_document_parse_metadata (const gchar    *metadata,
 649                              EvDocumentInfo *info)
 650 {
 651         xmlDocPtr          doc;
 652         xmlXPathContextPtr xpathCtx;
 653         gchar             *fmt;
 654
 655         doc = xmlParseMemory (metadata, strlen (metadata));
 656         if (doc == NULL)
 657                 return;         /* invalid xml metadata */
 658
 659         xpathCtx = xmlXPathNewContext (doc);
 660         if (xpathCtx == NULL) {
 661                 xmlFreeDoc (doc);
 662                 return;         /* invalid xpath context */
 663         }
 664
 665         fmt = pdf_document_get_format_from_metadata (doc, xpathCtx);
 666         if (fmt != NULL) {
 667                 g_free (info->format);
 668                 info->format = fmt;
 669         }
 670
 671         info->license = pdf_document_get_license_from_metadata (doc, xpathCtx);
 672
 673         xmlXPathFreeContext (xpathCtx);
 674         xmlFreeDoc (doc);
 675 }
 676
 677
 678 static EvDocumentInfo *
 679 pdf_document_get_info (EvDocument *document)
 680 {
 681         EvDocumentInfo *info;
 682         PopplerPageLayout layout;
 683         PopplerPageMode mode;
 684         PopplerViewerPreferences view_prefs;
 685         PopplerPermissions permissions;
 686         EvPage *page;
 687         char *metadata;
 688
 689         info = g_new0 (EvDocumentInfo, 1);
 690
 691         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 692                             EV_DOCUMENT_INFO_FORMAT |
 693                             EV_DOCUMENT_INFO_AUTHOR |
 694                             EV_DOCUMENT_INFO_SUBJECT |
 695                             EV_DOCUMENT_INFO_KEYWORDS |
 696                             EV_DOCUMENT_INFO_LAYOUT |
 697                             EV_DOCUMENT_INFO_START_MODE |
 698                             EV_DOCUMENT_INFO_PERMISSIONS |
 699                             EV_DOCUMENT_INFO_UI_HINTS |
 700                             EV_DOCUMENT_INFO_CREATOR |
 701                             EV_DOCUMENT_INFO_PRODUCER |
 702                             EV_DOCUMENT_INFO_CREATION_DATE |
 703                             EV_DOCUMENT_INFO_MOD_DATE |
 704                             EV_DOCUMENT_INFO_LINEARIZED |
 705                             EV_DOCUMENT_INFO_N_PAGES |
 706                             EV_DOCUMENT_INFO_SECURITY |
 707                             EV_DOCUMENT_INFO_PAPER_SIZE |
 708                             EV_DOCUMENT_INFO_LICENSE;
 709
 710         g_object_get (PDF_DOCUMENT (document)->document,
 711                       "title", &(info->title),
 712                       "format", &(info->format),
 713                       "author", &(info->author),
 714                       "subject", &(info->subject),
 715                       "keywords", &(info->keywords),
 716                       "page-mode", &mode,
 717                       "page-layout", &layout,
 718                       "viewer-preferences", &view_prefs,
 719                       "permissions", &permissions,
 720                       "creator", &(info->creator),
 721                       "producer", &(info->producer),
 722                       "creation-date", &(info->creation_date),
 723                       "mod-date", &(info->modified_date),
 724                       "linearized", &(info->linearized),
 725                       "metadata", &metadata,
 726                       NULL);
 727
 728         if (metadata != NULL) {
 729                 pdf_document_parse_metadata (metadata, info);
 730                 g_free (metadata);
 731         }
 732
 733         info->n_pages = ev_document_get_n_pages (document);
 734
 735         if (info->n_pages > 0) {
 736                 ev_document_get_page_size (document, 0,
 737                                            &(info->paper_width),
 738                                            &(info->paper_height));
 739                 // Convert to mm.
 740                 info->paper_width = info->paper_width / 72.0f * 25.4f;
 741                 info->paper_height = info->paper_height / 72.0f * 25.4f;
 742         }
 743
 744         switch (layout) {
 745                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 746                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 747                         break;
 748                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 749                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 750                         break;
 751                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 752                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 753                         break;
 754                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 755                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 756                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 757                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 758                         break;
 759                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 760                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 761                         break;
 762                 default:
 763                         break;
 764         }
 765
 766         switch (mode) {
 767                 case POPPLER_PAGE_MODE_NONE:
 768                         info->mode = EV_DOCUMENT_MODE_NONE;
 769                         break;
 770                 case POPPLER_PAGE_MODE_USE_THUMBS:
 771                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 772                         break;
 773                 case POPPLER_PAGE_MODE_USE_OC:
 774                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 775                         break;
 776                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 777                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 778                         break;
 779                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 780                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 781                 default:
 782                         break;
 783         }
 784
 785         info->ui_hints = 0;
 786         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 787                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 788         }
 789         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 790                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 791         }
 792         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 793                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 794         }
 795         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 796                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 797         }
 798         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 799                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 800         }
 801         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 802                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 803         }
 804         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 805                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 806         }
 807
 808         info->permissions = 0;
 809         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 810                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 811         }
 812         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 813                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 814         }
 815         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 816                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 817         }
 818         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 819                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 820         }
 821
 822         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 823                 /* translators: this is the document security state */
 824                 info->security = g_strdup (_("Yes"));
 825         } else {
 826                 /* translators: this is the document security state */
 827                 info->security = g_strdup (_("No"));
 828         }
 829
 830         return info;
 831 }
 832
 833 static gboolean
 834 pdf_document_get_backend_info (EvDocument *document, EvDocumentBackendInfo *info)
 835 {
 836         PopplerBackend backend;
 837
 838         backend = poppler_get_backend ();
 839         switch (backend) {
 840                 case POPPLER_BACKEND_CAIRO:
 841                         info->name = "poppler/cairo";
 842                         break;
 843                 case POPPLER_BACKEND_SPLASH:
 844                         info->name = "poppler/splash";
 845                         break;
 846                 default:
 847                         info->name = "poppler/unknown";
 848                         break;
 849         }
 850
 851         info->version = poppler_get_version ();
 852
 853         return TRUE;
 854 }
 855
 856 static void
 857 pdf_document_class_init (PdfDocumentClass *klass)
 858 {
 859         GObjectClass    *g_object_class = G_OBJECT_CLASS (klass);
 860         EvDocumentClass *ev_document_class = EV_DOCUMENT_CLASS (klass);
 861
 862         g_object_class->dispose = pdf_document_dispose;
 863
 864         ev_document_class->save = pdf_document_save;
 865         ev_document_class->load = pdf_document_load;
 866         ev_document_class->get_n_pages = pdf_document_get_n_pages;
 867         ev_document_class->get_page = pdf_document_get_page;
 868         ev_document_class->get_page_size = pdf_document_get_page_size;
 869         ev_document_class->get_page_label = pdf_document_get_page_label;
 870         ev_document_class->render = pdf_document_render;
 871         ev_document_class->get_info = pdf_document_get_info;
 872         ev_document_class->get_backend_info = pdf_document_get_backend_info;
 873 }
 874
 875 /* EvDocumentSecurity */
 876 static gboolean
 877 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 878 {
 879         /* FIXME: do we really need to have this? */
 880         return FALSE;
 881 }
 882
 883 static void
 884 pdf_document_set_password (EvDocumentSecurity *document_security,
 885                            const char         *password)
 886 {
 887         PdfDocument *document = PDF_DOCUMENT (document_security);
 888
 889         if (document->password)
 890                 g_free (document->password);
 891
 892         document->password = g_strdup (password);
 893 }
 894
 895 static void
 896 pdf_document_security_iface_init (EvDocumentSecurityInterface *iface)
 897 {
 898         iface->has_document_security = pdf_document_has_document_security;
 899         iface->set_password = pdf_document_set_password;
 900 }
 901
 902 static gdouble
 903 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 904 {
 905         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 906         int n_pages;
 907
 908         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 909
 910         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 911 }
 912
 913 static gboolean
 914 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 915                          int              n_pages)
 916 {
 917         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 918         gboolean result;
 919
 920         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 921
 922         if (pdf_document->font_info == NULL) {
 923                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 924         }
 925
 926         if (pdf_document->fonts_iter) {
 927                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 928         }
 929
 930         pdf_document->fonts_scanned_pages += n_pages;
 931
 932         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 933                                          &pdf_document->fonts_iter);
 934         if (!result) {
 935                 pdf_document->fonts_scanned_pages = 0;
 936                 poppler_font_info_free (pdf_document->font_info);
 937                 pdf_document->font_info = NULL;
 938         }
 939
 940         return result;
 941 }
 942
 943 static const char *
 944 font_type_to_string (PopplerFontType type)
 945 {
 946         switch (type) {
 947                 case POPPLER_FONT_TYPE_TYPE1:
 948                         return _("Type 1");
 949                 case POPPLER_FONT_TYPE_TYPE1C:
 950                         return _("Type 1C");
 951                 case POPPLER_FONT_TYPE_TYPE3:
 952                         return _("Type 3");
 953                 case POPPLER_FONT_TYPE_TRUETYPE:
 954                         return _("TrueType");
 955                 case POPPLER_FONT_TYPE_CID_TYPE0:
 956                         return _("Type 1 (CID)");
 957                 case POPPLER_FONT_TYPE_CID_TYPE0C:
 958                         return _("Type 1C (CID)");
 959                 case POPPLER_FONT_TYPE_CID_TYPE2:
 960                         return _("TrueType (CID)");
 961                 default:
 962                         return _("Unknown font type");
 963         }
 964 }
 965
 966 static void
 967 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 968                                GtkTreeModel    *model)
 969 {
 970         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 971         PopplerFontsIter *iter = pdf_document->fonts_iter;
 972
 973         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 974
 975         if (!iter)
 976                 return;
 977
 978         do {
 979                 GtkTreeIter list_iter;
 980                 const char *name;
 981                 const char *type;
 982                 const char *embedded;
 983                 char *details;
 984
 985                 name = poppler_fonts_iter_get_name (iter);
 986
 987                 if (name == NULL) {
 988                         name = _("No name");
 989                 }
 990
 991                 type = font_type_to_string (
 992                         poppler_fonts_iter_get_font_type (iter));
 993
 994                 if (poppler_fonts_iter_is_embedded (iter)) {
 995                         if (poppler_fonts_iter_is_subset (iter))
 996                                 embedded = _("Embedded subset");
 997                         else
 998                                 embedded = _("Embedded");
 999                 } else {
1000                         embedded = _("Not embedded");
1001                 }
1002
1003                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
1004
1005                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
1006                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
1007                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
1008                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
1009                                     -1);
1010
1011                 g_free (details);
1012         } while (poppler_fonts_iter_next (iter));
1013 }
1014
1015 static void
1016 pdf_document_document_fonts_iface_init (EvDocumentFontsInterface *iface)
1017 {
1018         iface->fill_model = pdf_document_fonts_fill_model;
1019         iface->scan = pdf_document_fonts_scan;
1020         iface->get_progress = pdf_document_fonts_get_progress;
1021 }
1022
1023 static gboolean
1024 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
1025 {
1026         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1027         PopplerIndexIter *iter;
1028
1029         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
1030
1031         iter = poppler_index_iter_new (pdf_document->document);
1032         if (iter == NULL)
1033                 return FALSE;
1034         poppler_index_iter_free (iter);
1035
1036         return TRUE;
1037 }
1038
1039 static EvLinkDest *
1040 ev_link_dest_from_dest (PdfDocument *pdf_document,
1041                         PopplerDest *dest)
1042 {
1043         EvLinkDest *ev_dest = NULL;
1044         const char *unimplemented_dest = NULL;
1045
1046         g_assert (dest != NULL);
1047
1048         switch (dest->type) {
1049                 case POPPLER_DEST_XYZ: {
1050                         PopplerPage *poppler_page;
1051                         double height;
1052
1053                         poppler_page = poppler_document_get_page (pdf_document->document,
1054                                                                   MAX (0, dest->page_num - 1));
1055                         poppler_page_get_size (poppler_page, NULL, &height);
1056                         ev_dest = ev_link_dest_new_xyz (dest->page_num - 1,
1057                                                         dest->left,
1058                                                         height - MIN (height, dest->top),
1059                                                         dest->zoom,
1060                                                         dest->change_left,
1061                                                         dest->change_top,
1062                                                         dest->change_zoom);
1063                         g_object_unref (poppler_page);
1064                 }
1065                         break;
1066                 case POPPLER_DEST_FITB:
1067                 case POPPLER_DEST_FIT:
1068                         ev_dest = ev_link_dest_new_fit (dest->page_num - 1);
1069                         break;
1070                 case POPPLER_DEST_FITBH:
1071                 case POPPLER_DEST_FITH: {
1072                         PopplerPage *poppler_page;
1073                         double height;
1074
1075                         poppler_page = poppler_document_get_page (pdf_document->document,
1076                                                                   MAX (0, dest->page_num - 1));
1077                         poppler_page_get_size (poppler_page, NULL, &height);
1078                         ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
1079                                                          height - MIN (height, dest->top),
1080                                                          dest->change_top);
1081                         g_object_unref (poppler_page);
1082                 }
1083                         break;
1084                 case POPPLER_DEST_FITBV:
1085                 case POPPLER_DEST_FITV:
1086                         ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
1087                                                          dest->left,
1088                                                          dest->change_left);
1089                         break;
1090                 case POPPLER_DEST_FITR: {
1091                         PopplerPage *poppler_page;
1092                         double height;
1093
1094                         poppler_page = poppler_document_get_page (pdf_document->document,
1095                                                                   MAX (0, dest->page_num - 1));
1096                         poppler_page_get_size (poppler_page, NULL, &height);
1097                         ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
1098                                                          dest->left,
1099                                                          height - MIN (height, dest->bottom),
1100                                                          dest->right,
1101                                                          height - MIN (height, dest->top));
1102                         g_object_unref (poppler_page);
1103                 }
1104                         break;
1105                 case POPPLER_DEST_NAMED:
1106                         ev_dest = ev_link_dest_new_named (dest->named_dest);
1107                         break;
1108                 case POPPLER_DEST_UNKNOWN:
1109                         unimplemented_dest = "POPPLER_DEST_UNKNOWN";
1110                         break;
1111         }
1112
1113         if (unimplemented_dest) {
1114                 g_warning ("Unimplemented destination: %s, please post a "
1115                            "bug report in Evince bugzilla "
1116                            "(http://bugzilla.gnome.org) with a testcase.",
1117                            unimplemented_dest);
1118         }
1119
1120         if (!ev_dest)
1121                 ev_dest = ev_link_dest_new_page (dest->page_num - 1);
1122
1123         return ev_dest;
1124 }
1125
1126 static EvLink *
1127 ev_link_from_action (PdfDocument   *pdf_document,
1128                      PopplerAction *action)
1129 {
1130         EvLink       *link = NULL;
1131         EvLinkAction *ev_action = NULL;
1132         const char   *unimplemented_action = NULL;
1133
1134         switch (action->type) {
1135                 case POPPLER_ACTION_NONE:
1136                         break;
1137                 case POPPLER_ACTION_GOTO_DEST: {
1138                         EvLinkDest *dest;
1139
1140                         dest = ev_link_dest_from_dest (pdf_document, action->goto_dest.dest);
1141                         ev_action = ev_link_action_new_dest (dest);
1142                 }
1143                         break;
1144                 case POPPLER_ACTION_GOTO_REMOTE: {
1145                         EvLinkDest *dest;
1146
1147                         dest = ev_link_dest_from_dest (pdf_document, action->goto_remote.dest);
1148                         ev_action = ev_link_action_new_remote (dest,
1149                                                                action->goto_remote.file_name);
1150
1151                 }
1152                         break;
1153                 case POPPLER_ACTION_LAUNCH:
1154                         ev_action = ev_link_action_new_launch (action->launch.file_name,
1155                                                                action->launch.params);
1156                         break;
1157                 case POPPLER_ACTION_URI:
1158                         ev_action = ev_link_action_new_external_uri (action->uri.uri);
1159                         break;
1160                 case POPPLER_ACTION_NAMED:
1161                         ev_action = ev_link_action_new_named (action->named.named_dest);
1162                         break;
1163                 case POPPLER_ACTION_MOVIE:
1164                         unimplemented_action = "POPPLER_ACTION_MOVIE";
1165                         break;
1166 #if POPPLER_CHECK_VERSION (0, 13, 2)
1167                 case POPPLER_ACTION_RENDITION:
1168                         unimplemented_action = "POPPLER_ACTION_RENDITION";
1169                         break;
1170                 case POPPLER_ACTION_OCG_STATE:
1171                         unimplemented_action = "POPPLER_ACTION_OCG_STATE";
1172                         break;
1173 #endif
1174                 case POPPLER_ACTION_UNKNOWN:
1175                         unimplemented_action = "POPPLER_ACTION_UNKNOWN";
1176         }
1177
1178         if (unimplemented_action) {
1179                 g_warning ("Unimplemented action: %s, please post a bug report "
1180                            "in Evince bugzilla (http://bugzilla.gnome.org) "
1181                            "with a testcase.", unimplemented_action);
1182         }
1183
1184         link = ev_link_new (action->any.title, ev_action);
1185
1186         return link;
1187 }
1188
1189 static void
1190 build_tree (PdfDocument      *pdf_document,
1191             GtkTreeModel     *model,
1192             GtkTreeIter      *parent,
1193             PopplerIndexIter *iter)
1194 {
1195
1196         do {
1197                 GtkTreeIter tree_iter;
1198                 PopplerIndexIter *child;
1199                 PopplerAction *action;
1200                 EvLink *link = NULL;
1201                 gboolean expand;
1202                 char *title_markup;
1203
1204                 action = poppler_index_iter_get_action (iter);
1205                 expand = poppler_index_iter_is_open (iter);
1206
1207                 if (!action)
1208                         continue;
1209
1210                 switch (action->type) {
1211                         case POPPLER_ACTION_GOTO_DEST: {
1212                                 /* For bookmarks, solve named destinations */
1213                                 if (action->goto_dest.dest->type == POPPLER_DEST_NAMED) {
1214                                         PopplerDest *dest;
1215                                         EvLinkDest *ev_dest = NULL;
1216                                         EvLinkAction *ev_action;
1217
1218                                         dest = poppler_document_find_dest (pdf_document->document,
1219                                                                            action->goto_dest.dest->named_dest);
1220                                         if (!dest) {
1221                                                 link = ev_link_from_action (pdf_document, action);
1222                                                 break;
1223                                         }
1224
1225                                         ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1226                                         poppler_dest_free (dest);
1227
1228                                         ev_action = ev_link_action_new_dest (ev_dest);
1229                                         link = ev_link_new (action->any.title, ev_action);
1230                                 } else {
1231                                         link = ev_link_from_action (pdf_document, action);
1232                                 }
1233                         }
1234                                 break;
1235                         default:
1236                                 link = ev_link_from_action (pdf_document, action);
1237                                 break;
1238                 }
1239
1240                 if (!link || strlen (ev_link_get_title (link)) <= 0) {
1241                         poppler_action_free (action);
1242                         if (link)
1243                                 g_object_unref (link);
1244
1245                         continue;
1246                 }
1247
1248                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
1249                 title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
1250
1251                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
1252                                     EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
1253                                     EV_DOCUMENT_LINKS_COLUMN_LINK, link,
1254                                     EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
1255                                     -1);
1256
1257                 g_free (title_markup);
1258                 g_object_unref (link);
1259
1260                 child = poppler_index_iter_get_child (iter);
1261                 if (child)
1262                         build_tree (pdf_document, model, &tree_iter, child);
1263                 poppler_index_iter_free (child);
1264                 poppler_action_free (action);
1265
1266         } while (poppler_index_iter_next (iter));
1267 }
1268
1269 static GtkTreeModel *
1270 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
1271 {
1272         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1273         GtkTreeModel *model = NULL;
1274         PopplerIndexIter *iter;
1275
1276         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
1277
1278         iter = poppler_index_iter_new (pdf_document->document);
1279         /* Create the model if we have items*/
1280         if (iter != NULL) {
1281                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
1282                                                              G_TYPE_STRING,
1283                                                              G_TYPE_OBJECT,
1284                                                              G_TYPE_BOOLEAN,
1285                                                              G_TYPE_STRING);
1286                 build_tree (pdf_document, model, NULL, iter);
1287                 poppler_index_iter_free (iter);
1288         }
1289
1290         return model;
1291 }
1292
1293 static GList *
1294 pdf_document_links_get_links (EvDocumentLinks *document_links,
1295                               EvPage          *page)
1296 {
1297         PdfDocument *pdf_document;
1298         PopplerPage *poppler_page;
1299         GList *retval = NULL;
1300         GList *mapping_list;
1301         GList *list;
1302         double height;
1303
1304         pdf_document = PDF_DOCUMENT (document_links);
1305         poppler_page = POPPLER_PAGE (page->backend_page);
1306         mapping_list = poppler_page_get_link_mapping (poppler_page);
1307         poppler_page_get_size (poppler_page, NULL, &height);
1308
1309         for (list = mapping_list; list; list = list->next) {
1310                 PopplerLinkMapping *link_mapping;
1311                 EvMapping *ev_link_mapping;
1312
1313                 link_mapping = (PopplerLinkMapping *)list->data;
1314                 ev_link_mapping = g_new (EvMapping, 1);
1315                 ev_link_mapping->data = ev_link_from_action (pdf_document,
1316                                                              link_mapping->action);
1317                 ev_link_mapping->area.x1 = link_mapping->area.x1;
1318                 ev_link_mapping->area.x2 = link_mapping->area.x2;
1319                 /* Invert this for X-style coordinates */
1320                 ev_link_mapping->area.y1 = height - link_mapping->area.y2;
1321                 ev_link_mapping->area.y2 = height - link_mapping->area.y1;
1322
1323                 retval = g_list_prepend (retval, ev_link_mapping);
1324         }
1325
1326         poppler_page_free_link_mapping (mapping_list);
1327
1328         return g_list_reverse (retval);
1329 }
1330
1331 static EvLinkDest *
1332 pdf_document_links_find_link_dest (EvDocumentLinks  *document_links,
1333                                    const gchar      *link_name)
1334 {
1335         PdfDocument *pdf_document;
1336         PopplerDest *dest;
1337         EvLinkDest *ev_dest = NULL;
1338
1339         pdf_document = PDF_DOCUMENT (document_links);
1340         dest = poppler_document_find_dest (pdf_document->document,
1341                                            link_name);
1342         if (dest) {
1343                 ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1344                 poppler_dest_free (dest);
1345         }
1346
1347         return ev_dest;
1348 }
1349
1350 static void
1351 pdf_document_document_links_iface_init (EvDocumentLinksInterface *iface)
1352 {
1353         iface->has_document_links = pdf_document_links_has_document_links;
1354         iface->get_links_model = pdf_document_links_get_links_model;
1355         iface->get_links = pdf_document_links_get_links;
1356         iface->find_link_dest = pdf_document_links_find_link_dest;
1357 }
1358
1359 static GList *
1360 pdf_document_images_get_image_mapping (EvDocumentImages *document_images,
1361                                        EvPage           *page)
1362 {
1363         GList *retval = NULL;
1364         PdfDocument *pdf_document;
1365         PopplerPage *poppler_page;
1366         GList *mapping_list;
1367         GList *list;
1368
1369         pdf_document = PDF_DOCUMENT (document_images);
1370         poppler_page = POPPLER_PAGE (page->backend_page);
1371         mapping_list = poppler_page_get_image_mapping (poppler_page);
1372
1373         for (list = mapping_list; list; list = list->next) {
1374                 PopplerImageMapping *image_mapping;
1375                 EvMapping *ev_image_mapping;
1376
1377                 image_mapping = (PopplerImageMapping *)list->data;
1378
1379                 ev_image_mapping = g_new (EvMapping, 1);
1380
1381                 ev_image_mapping->data = ev_image_new (page->index, image_mapping->image_id);
1382                 ev_image_mapping->area.x1 = image_mapping->area.x1;
1383                 ev_image_mapping->area.y1 = image_mapping->area.y1;
1384                 ev_image_mapping->area.x2 = image_mapping->area.x2;
1385                 ev_image_mapping->area.y2 = image_mapping->area.y2;
1386
1387                 retval = g_list_prepend (retval, ev_image_mapping);
1388         }
1389
1390         poppler_page_free_image_mapping (mapping_list);
1391
1392         return g_list_reverse (retval);
1393 }
1394
1395 GdkPixbuf *
1396 pdf_document_images_get_image (EvDocumentImages *document_images,
1397                                EvImage          *image)
1398 {
1399         GdkPixbuf       *retval = NULL;
1400 #ifdef HAVE_POPPLER_PAGE_GET_IMAGE
1401         PdfDocument     *pdf_document;
1402         PopplerPage     *poppler_page;
1403         cairo_surface_t *surface;
1404
1405         pdf_document = PDF_DOCUMENT (document_images);
1406         poppler_page = poppler_document_get_page (pdf_document->document,
1407                                                   ev_image_get_page (image));
1408
1409         surface = poppler_page_get_image (poppler_page, ev_image_get_id (image));
1410         if (surface) {
1411                 retval = ev_document_misc_pixbuf_from_surface (surface);
1412                 cairo_surface_destroy (surface);
1413         }
1414
1415         g_object_unref (poppler_page);
1416 #endif
1417         return retval;
1418 }
1419
1420 static void
1421 pdf_document_document_images_iface_init (EvDocumentImagesInterface *iface)
1422 {
1423         iface->get_image_mapping = pdf_document_images_get_image_mapping;
1424         iface->get_image = pdf_document_images_get_image;
1425 }
1426
1427 static GdkPixbuf *
1428 make_thumbnail_for_page (PopplerPage     *poppler_page,
1429                          EvRenderContext *rc,
1430                          gint             width,
1431                          gint             height)
1432 {
1433         GdkPixbuf *pixbuf;
1434
1435 #ifdef POPPLER_WITH_GDK
1436         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1437                                  width, height);
1438         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1439
1440         ev_document_fc_mutex_lock ();
1441         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1442                                        width, height,
1443                                        rc->scale, rc->rotation, pixbuf);
1444         ev_document_fc_mutex_unlock ();
1445 #else
1446         cairo_surface_t *surface;
1447
1448         ev_document_fc_mutex_lock ();
1449         surface = pdf_page_render (poppler_page, width, height, rc);
1450         ev_document_fc_mutex_unlock ();
1451
1452         pixbuf = ev_document_misc_pixbuf_from_surface (surface);
1453         cairo_surface_destroy (surface);
1454 #endif /* POPPLER_WITH_GDK */
1455
1456         return pixbuf;
1457 }
1458
1459 static GdkPixbuf *
1460 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1461                                        EvRenderContext      *rc,
1462                                        gboolean              border)
1463 {
1464         PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails);
1465         PopplerPage *poppler_page;
1466         GdkPixbuf *pixbuf = NULL;
1467         GdkPixbuf *border_pixbuf;
1468         gint width, height;
1469
1470         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1471
1472         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document),
1473                                                 rc, &width, &height);
1474
1475 #ifdef POPPLER_WITH_GDK
1476         pixbuf = poppler_page_get_thumbnail_pixbuf (poppler_page);
1477 #else
1478         cairo_surface_t *surface;
1479
1480         surface = poppler_page_get_thumbnail (poppler_page);
1481         if (surface) {
1482                 pixbuf = ev_document_misc_pixbuf_from_surface (surface);
1483                 cairo_surface_destroy (surface);
1484         }
1485 #endif /* POPPLER_WITH_GDK */
1486
1487         if (pixbuf != NULL) {
1488                 int thumb_width = (rc->rotation == 90 || rc->rotation == 270) ?
1489                         gdk_pixbuf_get_height (pixbuf) :
1490                         gdk_pixbuf_get_width (pixbuf);
1491
1492                 if (thumb_width == width) {
1493                         GdkPixbuf *rotated_pixbuf;
1494
1495                         rotated_pixbuf = gdk_pixbuf_rotate_simple (pixbuf,
1496                                                                    (GdkPixbufRotation) (360 - rc->rotation));
1497                         g_object_unref (pixbuf);
1498                         pixbuf = rotated_pixbuf;
1499                 } else {
1500                         /* The provided thumbnail has a different size */
1501                         g_object_unref (pixbuf);
1502                         pixbuf = make_thumbnail_for_page (poppler_page, rc, width, height);
1503                 }
1504         } else {
1505                 /* There is no provided thumbnail. We need to make one. */
1506                 pixbuf = make_thumbnail_for_page (poppler_page, rc, width, height);
1507         }
1508
1509         if (border && pixbuf) {
1510                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
1511                 g_object_unref (pixbuf);
1512                 pixbuf = border_pixbuf;
1513         }
1514
1515         return pixbuf;
1516 }
1517
1518 static void
1519 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1520                                         EvRenderContext      *rc,
1521                                         gint                 *width,
1522                                         gint                 *height)
1523 {
1524         double page_width, page_height;
1525
1526         poppler_page_get_size (POPPLER_PAGE (rc->page->backend_page),
1527                                &page_width, &page_height);
1528
1529         *width = MAX ((gint)(page_width * rc->scale + 0.5), 1);
1530         *height = MAX ((gint)(page_height * rc->scale + 0.5), 1);
1531
1532         if (rc->rotation == 90 || rc->rotation == 270) {
1533                 gint  temp;
1534
1535                 temp = *width;
1536                 *width = *height;
1537                 *height = temp;
1538         }
1539 }
1540
1541 static void
1542 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsInterface *iface)
1543 {
1544         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1545         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1546 }
1547
1548
1549 static GList *
1550 pdf_document_find_find_text (EvDocumentFind *document_find,
1551                              EvPage         *page,
1552                              const gchar    *text,
1553                              gboolean        case_sensitive)
1554 {
1555         GList *matches, *l;
1556         PopplerPage *poppler_page;
1557         gdouble height;
1558
1559         g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
1560         g_return_val_if_fail (text != NULL, NULL);
1561
1562         poppler_page = POPPLER_PAGE (page->backend_page);
1563
1564         matches = poppler_page_find_text (poppler_page, text);
1565         if (!matches)
1566                 return NULL;
1567
1568         poppler_page_get_size (poppler_page, NULL, &height);
1569         for (l = matches; l && l->data; l = g_list_next (l)) {
1570                 PopplerRectangle *rect = (PopplerRectangle *)l->data;
1571                 gdouble           tmp;
1572
1573                 tmp = rect->y1;
1574                 rect->y1 = height - rect->y2;
1575                 rect->y2 = height - tmp;
1576         }
1577
1578         return matches;
1579 }
1580
1581 static void
1582 pdf_document_find_iface_init (EvDocumentFindInterface *iface)
1583 {
1584         iface->find_text = pdf_document_find_find_text;
1585 }
1586
1587 static void
1588 pdf_print_context_free (PdfPrintContext *ctx)
1589 {
1590         if (!ctx)
1591                 return;
1592
1593 #ifdef HAVE_CAIRO_PRINT
1594         if (ctx->cr) {
1595                 cairo_destroy (ctx->cr);
1596                 ctx->cr = NULL;
1597         }
1598 #else
1599         if (ctx->ps_file) {
1600                 poppler_ps_file_free (ctx->ps_file);
1601                 ctx->ps_file = NULL;
1602         }
1603 #endif
1604         g_free (ctx);
1605 }
1606
1607 static void
1608 pdf_document_file_exporter_begin (EvFileExporter        *exporter,
1609                                   EvFileExporterContext *fc)
1610 {
1611         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1612         PdfPrintContext *ctx;
1613 #ifdef HAVE_CAIRO_PRINT
1614         gdouble width, height;
1615         cairo_surface_t *surface = NULL;
1616 #endif
1617
1618         if (pdf_document->print_ctx)
1619                 pdf_print_context_free (pdf_document->print_ctx);
1620         pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
1621         ctx = pdf_document->print_ctx;
1622         ctx->format = fc->format;
1623
1624 #ifdef HAVE_CAIRO_PRINT
1625         ctx->pages_per_sheet = CLAMP (fc->pages_per_sheet, 1, 16);
1626
1627         ctx->paper_width = fc->paper_width;
1628         ctx->paper_height = fc->paper_height;
1629
1630         switch (fc->pages_per_sheet) {
1631                 default:
1632                 case 1:
1633                         ctx->pages_x = 1;
1634                         ctx->pages_y = 1;
1635                         break;
1636                 case 2:
1637                         ctx->pages_x = 1;
1638                         ctx->pages_y = 2;
1639                         break;
1640                 case 4:
1641                         ctx->pages_x = 2;
1642                         ctx->pages_y = 2;
1643                         break;
1644                 case 6:
1645                         ctx->pages_x = 2;
1646                         ctx->pages_y = 3;
1647                         break;
1648                 case 9:
1649                         ctx->pages_x = 3;
1650                         ctx->pages_y = 3;
1651                         break;
1652                 case 16:
1653                         ctx->pages_x = 4;
1654                         ctx->pages_y = 4;
1655                         break;
1656         }
1657
1658         ctx->pages_printed = 0;
1659
1660         switch (fc->format) {
1661                 case EV_FILE_FORMAT_PS:
1662 #ifdef HAVE_CAIRO_PS
1663                         surface = cairo_ps_surface_create (fc->filename, fc->paper_width, fc->paper_height);
1664 #endif
1665                         break;
1666                 case EV_FILE_FORMAT_PDF:
1667 #ifdef HAVE_CAIRO_PDF
1668                         surface = cairo_pdf_surface_create (fc->filename, fc->paper_width, fc->paper_height);
1669 #endif
1670                         break;
1671                 default:
1672                         g_assert_not_reached ();
1673         }
1674
1675         ctx->cr = cairo_create (surface);
1676         cairo_surface_destroy (surface);
1677
1678 #else /* HAVE_CAIRO_PRINT */
1679         if (ctx->format == EV_FILE_FORMAT_PS) {
1680                 ctx->ps_file = poppler_ps_file_new (pdf_document->document,
1681                                                     fc->filename, fc->first_page,
1682                                                     fc->last_page - fc->first_page + 1);
1683                 poppler_ps_file_set_paper_size (ctx->ps_file, fc->paper_width, fc->paper_height);
1684                 poppler_ps_file_set_duplex (ctx->ps_file, fc->duplex);
1685         }
1686 #endif /* HAVE_CAIRO_PRINT */
1687 }
1688
1689 static void
1690 pdf_document_file_exporter_begin_page (EvFileExporter *exporter)
1691 {
1692         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1693         PdfPrintContext *ctx = pdf_document->print_ctx;
1694
1695         g_return_if_fail (pdf_document->print_ctx != NULL);
1696
1697         ctx->pages_printed = 0;
1698
1699 #ifdef HAVE_CAIRO_PRINT
1700         if (ctx->paper_width > ctx->paper_height) {
1701                 if (ctx->format == EV_FILE_FORMAT_PS) {
1702                         cairo_ps_surface_set_size (cairo_get_target (ctx->cr),
1703                                                    ctx->paper_height,
1704                                                    ctx->paper_width);
1705                 } else if (ctx->format == EV_FILE_FORMAT_PDF) {
1706                         cairo_pdf_surface_set_size (cairo_get_target (ctx->cr),
1707                                                     ctx->paper_height,
1708                                                     ctx->paper_width);
1709                 }
1710         }
1711 #endif /* HAVE_CAIRO_PRINT */
1712 }
1713
1714 static void
1715 pdf_document_file_exporter_do_page (EvFileExporter  *exporter,
1716                                     EvRenderContext *rc)
1717 {
1718         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1719         PdfPrintContext *ctx = pdf_document->print_ctx;
1720         PopplerPage *poppler_page;
1721 #ifdef HAVE_CAIRO_PRINT
1722         gdouble  page_width, page_height;
1723         gint     x, y;
1724         gboolean rotate;
1725         gdouble  width, height;
1726         gdouble  pwidth, pheight;
1727         gdouble  xscale, yscale;
1728 #endif
1729
1730         g_return_if_fail (pdf_document->print_ctx != NULL);
1731
1732         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1733
1734 #ifdef HAVE_CAIRO_PRINT
1735         x = (ctx->pages_printed % ctx->pages_per_sheet) % ctx->pages_x;
1736         y = (ctx->pages_printed % ctx->pages_per_sheet) / ctx->pages_x;
1737         poppler_page_get_size (poppler_page, &page_width, &page_height);
1738
1739         if (page_width > page_height && page_width > ctx->paper_width) {
1740                 rotate = TRUE;
1741         } else {
1742                 rotate = FALSE;
1743         }
1744
1745         /* Use always portrait mode and rotate when necessary */
1746         if (ctx->paper_width > ctx->paper_height) {
1747                 width = ctx->paper_height;
1748                 height = ctx->paper_width;
1749                 rotate = !rotate;
1750         } else {
1751                 width = ctx->paper_width;
1752                 height = ctx->paper_height;
1753         }
1754
1755         if (ctx->pages_per_sheet == 2 || ctx->pages_per_sheet == 6) {
1756                 rotate = !rotate;
1757         }
1758
1759         if (rotate) {
1760                 gint tmp1;
1761                 gdouble tmp2;
1762
1763                 tmp1 = x;
1764                 x = y;
1765                 y = tmp1;
1766
1767                 tmp2 = page_width;
1768                 page_width = page_height;
1769                 page_height = tmp2;
1770         }
1771
1772         pwidth = width / ctx->pages_x;
1773         pheight = height / ctx->pages_y;
1774
1775         if ((page_width > pwidth || page_height > pheight) ||
1776             (page_width < pwidth && page_height < pheight)) {
1777                 xscale = pwidth / page_width;
1778                 yscale = pheight / page_height;
1779
1780                 if (yscale < xscale) {
1781                         xscale = yscale;
1782                 } else {
1783                         yscale = xscale;
1784                 }
1785
1786         } else {
1787                 xscale = yscale = 1;
1788         }
1789
1790         /* TODO: center */
1791
1792         cairo_save (ctx->cr);
1793         if (rotate) {
1794                 cairo_matrix_t matrix;
1795
1796                 cairo_translate (ctx->cr, (2 * y + 1) * pwidth, 0);
1797                 cairo_matrix_init (&matrix,
1798                                    0,  1,
1799                                    -1,  0,
1800                                    0,  0);
1801                 cairo_transform (ctx->cr, &matrix);
1802         }
1803
1804         cairo_translate (ctx->cr,
1805                          x * (rotate ? pheight : pwidth),
1806                          y * (rotate ? pwidth : pheight));
1807         cairo_scale (ctx->cr, xscale, yscale);
1808
1809         poppler_page_render_for_printing (poppler_page, ctx->cr);
1810
1811         ctx->pages_printed++;
1812
1813         cairo_restore (ctx->cr);
1814 #else /* HAVE_CAIRO_PRINT */
1815         if (ctx->format == EV_FILE_FORMAT_PS)
1816                 poppler_page_render_to_ps (poppler_page, ctx->ps_file);
1817 #endif /* HAVE_CAIRO_PRINT */
1818 }
1819
1820 static void
1821 pdf_document_file_exporter_end_page (EvFileExporter *exporter)
1822 {
1823         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1824         PdfPrintContext *ctx = pdf_document->print_ctx;
1825
1826         g_return_if_fail (pdf_document->print_ctx != NULL);
1827
1828 #ifdef HAVE_CAIRO_PRINT
1829         cairo_show_page (ctx->cr);
1830 #endif
1831 }
1832
1833 static void
1834 pdf_document_file_exporter_end (EvFileExporter *exporter)
1835 {
1836         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1837
1838         pdf_print_context_free (pdf_document->print_ctx);
1839         pdf_document->print_ctx = NULL;
1840 }
1841
1842 static EvFileExporterCapabilities
1843 pdf_document_file_exporter_get_capabilities (EvFileExporter *exporter)
1844 {
1845         return  (EvFileExporterCapabilities) (
1846                 EV_FILE_EXPORTER_CAN_PAGE_SET |
1847                 EV_FILE_EXPORTER_CAN_COPIES |
1848                 EV_FILE_EXPORTER_CAN_COLLATE |
1849                 EV_FILE_EXPORTER_CAN_REVERSE |
1850                 EV_FILE_EXPORTER_CAN_SCALE |
1851 #ifdef HAVE_CAIRO_PRINT
1852 #ifdef HAVE_POPPLER_PAGE_RENDER
1853                 EV_FILE_EXPORTER_CAN_NUMBER_UP |
1854 #endif
1855 #endif
1856
1857 #ifdef HAVE_CAIRO_PDF
1858 #ifdef HAVE_POPPLER_PAGE_RENDER
1859                 EV_FILE_EXPORTER_CAN_GENERATE_PDF |
1860 #endif
1861 #endif
1862                 EV_FILE_EXPORTER_CAN_GENERATE_PS);
1863 }
1864
1865 static void
1866 pdf_document_file_exporter_iface_init (EvFileExporterInterface *iface)
1867 {
1868         iface->begin = pdf_document_file_exporter_begin;
1869         iface->begin_page = pdf_document_file_exporter_begin_page;
1870         iface->do_page = pdf_document_file_exporter_do_page;
1871         iface->end_page = pdf_document_file_exporter_end_page;
1872         iface->end = pdf_document_file_exporter_end;
1873         iface->get_capabilities = pdf_document_file_exporter_get_capabilities;
1874 }
1875
1876 #ifdef HAVE_POPPLER_PAGE_RENDER
1877 /* EvDocumentPrint */
1878 static void
1879 pdf_document_print_print_page (EvDocumentPrint *document,
1880                                EvPage          *page,
1881                                cairo_t         *cr)
1882 {
1883         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1884
1885         poppler_page_render_for_printing (POPPLER_PAGE (page->backend_page), cr);
1886 }
1887
1888 static void
1889 pdf_document_document_print_iface_init (EvDocumentPrintInterface *iface)
1890 {
1891         iface->print_page = pdf_document_print_print_page;
1892 }
1893 #endif /* HAVE_POPPLER_PAGE_RENDER */
1894
1895 static void
1896 pdf_selection_render_selection (EvSelection      *selection,
1897                                 EvRenderContext  *rc,
1898                                 cairo_surface_t **surface,
1899                                 EvRectangle      *points,
1900                                 EvRectangle      *old_points,
1901                                 EvSelectionStyle  style,
1902                                 GdkColor         *text,
1903                                 GdkColor         *base)
1904 {
1905         PopplerPage *poppler_page;
1906         double width_points, height_points;
1907         gint width, height;
1908
1909         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1910
1911         poppler_page_get_size (poppler_page,
1912                                &width_points, &height_points);
1913         width = (int) ((width_points * rc->scale) + 0.5);
1914         height = (int) ((height_points * rc->scale) + 0.5);
1915
1916 #ifdef HAVE_POPPLER_PAGE_RENDER
1917         cairo_t *cr;
1918         PopplerColor text_color, base_color;
1919
1920         text_color.red = text->red;
1921         text_color.green = text->green;
1922         text_color.blue = text->blue;
1923
1924         base_color.red = base->red;
1925         base_color.green = base->green;
1926         base_color.blue = base->blue;
1927
1928         if (*surface == NULL) {
1929                 *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
1930                                                        width, height);
1931
1932         }
1933
1934         cr = cairo_create (*surface);
1935         cairo_scale (cr, rc->scale, rc->scale);
1936         cairo_surface_set_device_offset (*surface, 0, 0);
1937         memset (cairo_image_surface_get_data (*surface), 0x00,
1938                 cairo_image_surface_get_height (*surface) *
1939                 cairo_image_surface_get_stride (*surface));
1940         poppler_page_render_selection (poppler_page,
1941                                        cr,
1942                                        (PopplerRectangle *)points,
1943                                        (PopplerRectangle *)old_points,
1944                                        (PopplerSelectionStyle)style,
1945                                        &text_color,
1946                                        &base_color);
1947         cairo_destroy (cr);
1948 #else /* HAVE_POPPLER_PAGE_RENDER */
1949         GdkPixbuf *pixbuf;
1950
1951         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1952                                  TRUE, 8,
1953                                  width, height);
1954
1955         poppler_page_render_selection_to_pixbuf (poppler_page,
1956                                                  rc->scale, rc->rotation, pixbuf,
1957                                                  (PopplerRectangle *)points,
1958                                                  (PopplerRectangle *)old_points,
1959                                                  (PopplerSelectionStyle)style,
1960                                                  text,
1961                                                  base);
1962         if (*surface)
1963                 cairo_surface_destroy (*surface);
1964         *surface = ev_document_misc_surface_from_pixbuf (pixbuf);
1965         g_object_unref (pixbuf);
1966 #endif /* HAVE_POPPLER_PAGE_RENDER */
1967 }
1968
1969 static gchar *
1970 pdf_selection_get_selected_text (EvSelection     *selection,
1971                                  EvPage          *page,
1972                                  EvSelectionStyle style,
1973                                  EvRectangle     *points)
1974 {
1975         PopplerPage *poppler_page;
1976         PopplerRectangle r;
1977         double height;
1978         char *retval;
1979
1980         poppler_page = POPPLER_PAGE (page->backend_page);
1981
1982         poppler_page_get_size (poppler_page, NULL, &height);
1983         r.x1 = points->x1;
1984         r.y1 = height - points->y2;
1985         r.x2 = points->x2;
1986         r.y2 = height - points->y1;
1987
1988         retval = poppler_page_get_text (poppler_page,
1989                                         (PopplerSelectionStyle)style,
1990                                         &r);
1991
1992         return retval;
1993 }
1994
1995 static GdkRegion *
1996 create_gdk_region_from_poppler_region (GList *region)
1997 {
1998         GList *l;
1999         GdkRegion *retval;
2000
2001         retval = gdk_region_new ();
2002
2003         for (l = region; l; l = g_list_next (l)) {
2004                 PopplerRectangle *rectangle;
2005                 GdkRectangle      rect;
2006
2007                 rectangle = (PopplerRectangle *)l->data;
2008
2009                 rect.x = (gint) rectangle->x1;
2010                 rect.y = (gint) rectangle->y1;
2011                 rect.width  = (gint) (rectangle->x2 - rectangle->x1);
2012                 rect.height = (gint) (rectangle->y2 - rectangle->y1);
2013                 gdk_region_union_with_rect (retval, &rect);
2014
2015                 poppler_rectangle_free (rectangle);
2016         }
2017
2018         return retval;
2019 }
2020
2021 static GdkRegion *
2022 pdf_selection_get_selection_region (EvSelection     *selection,
2023                                     EvRenderContext *rc,
2024                                     EvSelectionStyle style,
2025                                     EvRectangle     *points)
2026 {
2027         PopplerPage *poppler_page;
2028         GdkRegion   *retval;
2029         GList       *region;
2030
2031         poppler_page = POPPLER_PAGE (rc->page->backend_page);
2032
2033         region = poppler_page_get_selection_region (poppler_page,
2034                                                     rc->scale,
2035                                                     (PopplerSelectionStyle)style,
2036                                                     (PopplerRectangle *) points);
2037         retval = create_gdk_region_from_poppler_region (region);
2038         g_list_free (region);
2039
2040         return retval;
2041 }
2042
2043 static GdkRegion *
2044 pdf_selection_get_selection_map (EvSelection *selection,
2045                                  EvPage      *page)
2046 {
2047         PopplerPage *poppler_page;
2048         PopplerRectangle points;
2049         GList *region;
2050         GdkRegion *retval;
2051
2052         poppler_page = POPPLER_PAGE (page->backend_page);
2053
2054         points.x1 = 0.0;
2055         points.y1 = 0.0;
2056         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
2057
2058         region = poppler_page_get_selection_region (poppler_page, 1.0,
2059                                                     POPPLER_SELECTION_GLYPH,
2060                                                     &points);
2061         retval = create_gdk_region_from_poppler_region (region);
2062         g_list_free (region);
2063
2064         return retval;
2065 }
2066
2067 static void
2068 pdf_selection_iface_init (EvSelectionInterface *iface)
2069 {
2070         iface->render_selection = pdf_selection_render_selection;
2071         iface->get_selected_text = pdf_selection_get_selected_text;
2072         iface->get_selection_region = pdf_selection_get_selection_region;
2073         iface->get_selection_map = pdf_selection_get_selection_map;
2074 }
2075
2076 /* Page Transitions */
2077 static gdouble
2078 pdf_document_get_page_duration (EvDocumentTransition *trans,
2079                                 gint                  page)
2080 {
2081         PdfDocument *pdf_document;
2082         PopplerPage *poppler_page;
2083         gdouble      duration = -1;
2084
2085         pdf_document = PDF_DOCUMENT (trans);
2086         poppler_page = poppler_document_get_page (pdf_document->document, page);
2087         if (!poppler_page)
2088                 return -1;
2089
2090         duration = poppler_page_get_duration (poppler_page);
2091         g_object_unref (poppler_page);
2092
2093         return duration;
2094 }
2095
2096 static EvTransitionEffect *
2097 pdf_document_get_effect (EvDocumentTransition *trans,
2098                          gint                  page)
2099 {
2100         PdfDocument            *pdf_document;
2101         PopplerPage            *poppler_page;
2102         PopplerPageTransition  *page_transition;
2103         EvTransitionEffect     *effect;
2104
2105         pdf_document = PDF_DOCUMENT (trans);
2106         poppler_page = poppler_document_get_page (pdf_document->document, page);
2107
2108         if (!poppler_page)
2109                 return NULL;
2110
2111         page_transition = poppler_page_get_transition (poppler_page);
2112
2113         if (!page_transition) {
2114                 g_object_unref (poppler_page);
2115                 return NULL;
2116         }
2117
2118         /* enums in PopplerPageTransition match the EvTransitionEffect ones */
2119         effect = ev_transition_effect_new ((EvTransitionEffectType) page_transition->type,
2120                                            "alignment", page_transition->alignment,
2121                                            "direction", page_transition->direction,
2122                                            "duration", page_transition->duration,
2123                                            "angle", page_transition->angle,
2124                                            "scale", page_transition->scale,
2125                                            "rectangular", page_transition->rectangular,
2126                                            NULL);
2127
2128         poppler_page_transition_free (page_transition);
2129         g_object_unref (poppler_page);
2130
2131         return effect;
2132 }
2133
2134 static void
2135 pdf_document_page_transition_iface_init (EvDocumentTransitionInterface *iface)
2136 {
2137         iface->get_page_duration = pdf_document_get_page_duration;
2138         iface->get_effect = pdf_document_get_effect;
2139 }
2140
2141 /* Forms */
2142 static void
2143 pdf_document_get_crop_box (EvDocument  *document,
2144                            int          page,
2145                            EvRectangle *rect)
2146 {
2147         PdfDocument *pdf_document;
2148         PopplerPage *poppler_page;
2149         PopplerRectangle poppler_rect;
2150
2151         pdf_document = PDF_DOCUMENT (document);
2152         poppler_page = poppler_document_get_page (pdf_document->document, page);
2153         poppler_page_get_crop_box (poppler_page, &poppler_rect);
2154         rect->x1 = poppler_rect.x1;
2155         rect->x2 = poppler_rect.x2;
2156         rect->y1 = poppler_rect.y1;
2157         rect->y2 = poppler_rect.y2;
2158 }
2159
2160 static EvFormField *
2161 ev_form_field_from_poppler_field (PopplerFormField *poppler_field)
2162 {
2163         EvFormField *ev_field = NULL;
2164         gint         id;
2165         gdouble      font_size;
2166         gboolean     is_read_only;
2167
2168         id = poppler_form_field_get_id (poppler_field);
2169         font_size = poppler_form_field_get_font_size (poppler_field);
2170         is_read_only = poppler_form_field_is_read_only (poppler_field);
2171
2172         switch (poppler_form_field_get_field_type (poppler_field)) {
2173                 case POPPLER_FORM_FIELD_TEXT: {
2174                         EvFormFieldText    *field_text;
2175                         EvFormFieldTextType ev_text_type = EV_FORM_FIELD_TEXT_NORMAL;
2176
2177                         switch (poppler_form_field_text_get_text_type (poppler_field)) {
2178                                 case POPPLER_FORM_TEXT_NORMAL:
2179                                         ev_text_type = EV_FORM_FIELD_TEXT_NORMAL;
2180                                         break;
2181                                 case POPPLER_FORM_TEXT_MULTILINE:
2182                                         ev_text_type = EV_FORM_FIELD_TEXT_MULTILINE;
2183                                         break;
2184                                 case POPPLER_FORM_TEXT_FILE_SELECT:
2185                                         ev_text_type = EV_FORM_FIELD_TEXT_FILE_SELECT;
2186                                         break;
2187                         }
2188
2189                         ev_field = ev_form_field_text_new (id, ev_text_type);
2190                         field_text = EV_FORM_FIELD_TEXT (ev_field);
2191
2192                         field_text->do_spell_check = poppler_form_field_text_do_spell_check (poppler_field);
2193                         field_text->do_scroll = poppler_form_field_text_do_scroll (poppler_field);
2194                         field_text->is_rich_text = poppler_form_field_text_is_rich_text (poppler_field);
2195                         field_text->is_password = poppler_form_field_text_is_password (poppler_field);
2196                         field_text->max_len = poppler_form_field_text_get_max_len (poppler_field);
2197                         field_text->text = poppler_form_field_text_get_text (poppler_field);
2198
2199                 }
2200                         break;
2201                 case POPPLER_FORM_FIELD_BUTTON: {
2202                         EvFormFieldButton    *field_button;
2203                         EvFormFieldButtonType ev_button_type = EV_FORM_FIELD_BUTTON_PUSH;
2204
2205                         switch (poppler_form_field_button_get_button_type (poppler_field)) {
2206                                 case POPPLER_FORM_BUTTON_PUSH:
2207                                         ev_button_type = EV_FORM_FIELD_BUTTON_PUSH;
2208                                         break;
2209                                 case POPPLER_FORM_BUTTON_CHECK:
2210                                         ev_button_type = EV_FORM_FIELD_BUTTON_CHECK;
2211                                         break;
2212                                 case POPPLER_FORM_BUTTON_RADIO:
2213                                         ev_button_type = EV_FORM_FIELD_BUTTON_RADIO;
2214                                         break;
2215                         }
2216
2217                         ev_field = ev_form_field_button_new (id, ev_button_type);
2218                         field_button = EV_FORM_FIELD_BUTTON (ev_field);
2219
2220                         field_button->state = poppler_form_field_button_get_state (poppler_field);
2221                 }
2222                         break;
2223                 case POPPLER_FORM_FIELD_CHOICE: {
2224                         EvFormFieldChoice    *field_choice;
2225                         EvFormFieldChoiceType ev_choice_type = EV_FORM_FIELD_CHOICE_COMBO;
2226
2227                         switch (poppler_form_field_choice_get_choice_type (poppler_field)) {
2228                                 case POPPLER_FORM_CHOICE_COMBO:
2229                                         ev_choice_type = EV_FORM_FIELD_CHOICE_COMBO;
2230                                         break;
2231                                 case EV_FORM_FIELD_CHOICE_LIST:
2232                                         ev_choice_type = EV_FORM_FIELD_CHOICE_LIST;
2233                                         break;
2234                         }
2235
2236                         ev_field = ev_form_field_choice_new (id, ev_choice_type);
2237                         field_choice = EV_FORM_FIELD_CHOICE (ev_field);
2238
2239                         field_choice->is_editable = poppler_form_field_choice_is_editable (poppler_field);
2240                         field_choice->multi_select = poppler_form_field_choice_can_select_multiple (poppler_field);
2241                         field_choice->do_spell_check = poppler_form_field_choice_do_spell_check (poppler_field);
2242                         field_choice->commit_on_sel_change = poppler_form_field_choice_commit_on_change (poppler_field);
2243
2244                         /* TODO: we need poppler_form_field_choice_get_selected_items in poppler
2245                         field_choice->selected_items = poppler_form_field_choice_get_selected_items (poppler_field);*/
2246                         if (field_choice->is_editable)
2247                                 field_choice->text = poppler_form_field_choice_get_text (poppler_field);
2248                 }
2249                         break;
2250                 case POPPLER_FORM_FIELD_SIGNATURE:
2251                         /* TODO */
2252                         ev_field = ev_form_field_signature_new (id);
2253                         break;
2254                 case POPPLER_FORM_FIELD_UNKNOWN:
2255                         return NULL;
2256         }
2257
2258         ev_field->font_size = font_size;
2259         ev_field->is_read_only = is_read_only;
2260
2261         return ev_field;
2262 }
2263
2264 static GList *
2265 pdf_document_forms_get_form_fields (EvDocumentForms *document,
2266                                     EvPage          *page)
2267 {
2268         PopplerPage *poppler_page;
2269         GList *retval = NULL;
2270         GList *fields;
2271         GList *list;
2272         double height;
2273
2274         g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
2275
2276         poppler_page = POPPLER_PAGE (page->backend_page);
2277         fields = poppler_page_get_form_field_mapping (poppler_page);
2278         poppler_page_get_size (poppler_page, NULL, &height);
2279
2280         for (list = fields; list; list = list->next) {
2281                 PopplerFormFieldMapping *mapping;
2282                 EvMapping *field_mapping;
2283                 EvFormField *ev_field;
2284
2285                 mapping = (PopplerFormFieldMapping *)list->data;
2286
2287                 ev_field = ev_form_field_from_poppler_field (mapping->field);
2288                 if (!ev_field)
2289                         continue;
2290
2291                 field_mapping = g_new0 (EvMapping, 1);
2292                 field_mapping->area.x1 = mapping->area.x1;
2293                 field_mapping->area.x2 = mapping->area.x2;
2294                 field_mapping->area.y1 = height - mapping->area.y2;
2295                 field_mapping->area.y2 = height - mapping->area.y1;
2296                 field_mapping->data = ev_field;
2297                 ev_field->page = EV_PAGE (g_object_ref (page));
2298
2299                 g_object_set_data_full (G_OBJECT (ev_field),
2300                                         "poppler-field",
2301                                         g_object_ref (mapping->field),
2302                                         (GDestroyNotify) g_object_unref);
2303
2304                 retval = g_list_prepend (retval, field_mapping);
2305         }
2306
2307         poppler_page_free_form_field_mapping (fields);
2308
2309         return g_list_reverse (retval);
2310 }
2311
2312 static gchar *
2313 pdf_document_forms_form_field_text_get_text (EvDocumentForms *document,
2314                                              EvFormField     *field)
2315
2316 {
2317         PopplerFormField *poppler_field;
2318         gchar *text;
2319
2320         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2321         if (!poppler_field)
2322                 return NULL;
2323
2324         text = poppler_form_field_text_get_text (poppler_field);
2325
2326         return text;
2327 }
2328
2329 static void
2330 pdf_document_forms_form_field_text_set_text (EvDocumentForms *document,
2331                                              EvFormField     *field,
2332                                              const gchar     *text)
2333 {
2334         PopplerFormField *poppler_field;
2335
2336         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2337         if (!poppler_field)
2338                 return;
2339
2340         poppler_form_field_text_set_text (poppler_field, text);
2341         PDF_DOCUMENT (document)->modified = TRUE;
2342 }
2343
2344 static void
2345 pdf_document_forms_form_field_button_set_state (EvDocumentForms *document,
2346                                                 EvFormField     *field,
2347                                                 gboolean         state)
2348 {
2349         PopplerFormField *poppler_field;
2350
2351         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2352         if (!poppler_field)
2353                 return;
2354
2355         poppler_form_field_button_set_state (poppler_field, state);
2356         PDF_DOCUMENT (document)->modified = TRUE;
2357 }
2358
2359 static gboolean
2360 pdf_document_forms_form_field_button_get_state (EvDocumentForms *document,
2361                                                 EvFormField     *field)
2362 {
2363         PopplerFormField *poppler_field;
2364         gboolean state;
2365
2366         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2367         if (!poppler_field)
2368                 return FALSE;
2369
2370         state = poppler_form_field_button_get_state (poppler_field);
2371
2372         return state;
2373 }
2374
2375 static gchar *
2376 pdf_document_forms_form_field_choice_get_item (EvDocumentForms *document,
2377                                                EvFormField     *field,
2378                                                gint             index)
2379 {
2380         PopplerFormField *poppler_field;
2381         gchar *text;
2382
2383         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2384         if (!poppler_field)
2385                 return NULL;
2386
2387         text = poppler_form_field_choice_get_item (poppler_field, index);
2388
2389         return text;
2390 }
2391
2392 static int
2393 pdf_document_forms_form_field_choice_get_n_items (EvDocumentForms *document,
2394                                                   EvFormField     *field)
2395 {
2396         PopplerFormField *poppler_field;
2397         gint n_items;
2398
2399         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2400         if (!poppler_field)
2401                 return -1;
2402
2403         n_items = poppler_form_field_choice_get_n_items (poppler_field);
2404
2405         return n_items;
2406 }
2407
2408 static gboolean
2409 pdf_document_forms_form_field_choice_is_item_selected (EvDocumentForms *document,
2410                                                        EvFormField     *field,
2411                                                        gint             index)
2412 {
2413         PopplerFormField *poppler_field;
2414         gboolean selected;
2415
2416         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2417         if (!poppler_field)
2418                 return FALSE;
2419
2420         selected = poppler_form_field_choice_is_item_selected (poppler_field, index);
2421
2422         return selected;
2423 }
2424
2425 static void
2426 pdf_document_forms_form_field_choice_select_item (EvDocumentForms *document,
2427                                                   EvFormField     *field,
2428                                                   gint             index)
2429 {
2430         PopplerFormField *poppler_field;
2431
2432         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2433         if (!poppler_field)
2434                 return;
2435
2436         poppler_form_field_choice_select_item (poppler_field, index);
2437         PDF_DOCUMENT (document)->modified = TRUE;
2438 }
2439
2440 static void
2441 pdf_document_forms_form_field_choice_toggle_item (EvDocumentForms *document,
2442                                                   EvFormField     *field,
2443                                                   gint             index)
2444 {
2445         PopplerFormField *poppler_field;
2446
2447         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2448         if (!poppler_field)
2449                 return;
2450
2451         poppler_form_field_choice_toggle_item (poppler_field, index);
2452         PDF_DOCUMENT (document)->modified = TRUE;
2453 }
2454
2455 static void
2456 pdf_document_forms_form_field_choice_unselect_all (EvDocumentForms *document,
2457                                                    EvFormField     *field)
2458 {
2459         PopplerFormField *poppler_field;
2460
2461         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2462         if (!poppler_field)
2463                 return;
2464
2465         poppler_form_field_choice_unselect_all (poppler_field);
2466         PDF_DOCUMENT (document)->modified = TRUE;
2467 }
2468
2469 static void
2470 pdf_document_forms_form_field_choice_set_text (EvDocumentForms *document,
2471                                                EvFormField     *field,
2472                                                const gchar     *text)
2473 {
2474         PopplerFormField *poppler_field;
2475
2476         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2477         if (!poppler_field)
2478                 return;
2479
2480         poppler_form_field_choice_set_text (poppler_field, text);
2481         PDF_DOCUMENT (document)->modified = TRUE;
2482 }
2483
2484 static gchar *
2485 pdf_document_forms_form_field_choice_get_text (EvDocumentForms *document,
2486                                                EvFormField     *field)
2487 {
2488         PopplerFormField *poppler_field;
2489         gchar *text;
2490
2491         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2492         if (!poppler_field)
2493                 return NULL;
2494
2495         text = poppler_form_field_choice_get_text (poppler_field);
2496
2497         return text;
2498 }
2499
2500 static void
2501 pdf_document_document_forms_iface_init (EvDocumentFormsInterface *iface)
2502 {
2503         iface->get_form_fields = pdf_document_forms_get_form_fields;
2504         iface->form_field_text_get_text = pdf_document_forms_form_field_text_get_text;
2505         iface->form_field_text_set_text = pdf_document_forms_form_field_text_set_text;
2506         iface->form_field_button_set_state = pdf_document_forms_form_field_button_set_state;
2507         iface->form_field_button_get_state = pdf_document_forms_form_field_button_get_state;
2508         iface->form_field_choice_get_item = pdf_document_forms_form_field_choice_get_item;
2509         iface->form_field_choice_get_n_items = pdf_document_forms_form_field_choice_get_n_items;
2510         iface->form_field_choice_is_item_selected = pdf_document_forms_form_field_choice_is_item_selected;
2511         iface->form_field_choice_select_item = pdf_document_forms_form_field_choice_select_item;
2512         iface->form_field_choice_toggle_item = pdf_document_forms_form_field_choice_toggle_item;
2513         iface->form_field_choice_unselect_all = pdf_document_forms_form_field_choice_unselect_all;
2514         iface->form_field_choice_set_text = pdf_document_forms_form_field_choice_set_text;
2515         iface->form_field_choice_get_text = pdf_document_forms_form_field_choice_get_text;
2516 }
2517
2518 /* Annotations */
2519 static void
2520 poppler_annot_color_to_gdk_color (PopplerAnnot *poppler_annot,
2521                                   GdkColor     *color)
2522 {
2523         PopplerColor *poppler_color;
2524
2525         poppler_color = poppler_annot_get_color (poppler_annot);
2526         if (poppler_color) {
2527                 color->red = poppler_color->red;
2528                 color->green = poppler_color->green;
2529                 color->blue = poppler_color->blue;
2530
2531                 g_free (poppler_color);
2532         } /* TODO: else use a default color */
2533 }
2534
2535 static EvAnnotation *
2536 ev_annot_from_poppler_annot (PopplerAnnot *poppler_annot,
2537                              EvPage       *page)
2538 {
2539         EvAnnotation *ev_annot = NULL;
2540         const gchar  *unimplemented_annot = NULL;
2541
2542         switch (poppler_annot_get_annot_type (poppler_annot)) {
2543                 case POPPLER_ANNOT_TEXT: {
2544                         PopplerAnnotText *poppler_text;
2545                         EvAnnotationText *ev_annot_text;
2546
2547                         poppler_text = POPPLER_ANNOT_TEXT (poppler_annot);
2548
2549                         ev_annot = ev_annotation_text_new (page);
2550
2551                         ev_annot_text = EV_ANNOTATION_TEXT (ev_annot);
2552                         ev_annot_text->is_open = poppler_annot_text_get_is_open (poppler_text);
2553                 }
2554                         break;
2555 #ifdef HAVE_POPPLER_ANNOT_FILE_ATTACHMENT_GET_ATTACHMENT
2556                 case POPPLER_ANNOT_FILE_ATTACHMENT: {
2557                         PopplerAnnotFileAttachment *poppler_annot_attachment;
2558                         EvAnnotationAttachment     *ev_annot_attachment;
2559                         PopplerAttachment          *poppler_attachment;
2560                         gchar                      *data = NULL;
2561                         gsize                       size;
2562                         GError                     *error = NULL;
2563
2564                         poppler_annot_attachment = POPPLER_ANNOT_FILE_ATTACHMENT (poppler_annot);
2565                         poppler_attachment = poppler_annot_file_attachment_get_attachment (poppler_annot_attachment);
2566
2567                         if (poppler_attachment &&
2568                             attachment_save_to_buffer (poppler_attachment, &data, &size, &error)) {
2569                                 EvAttachment *ev_attachment;
2570
2571                                 ev_attachment = ev_attachment_new (poppler_attachment->name,
2572                                                                    poppler_attachment->description,
2573                                                                    poppler_attachment->mtime,
2574                                                                    poppler_attachment->ctime,
2575                                                                    size, data);
2576                                 ev_annot = ev_annotation_attachment_new (page, ev_attachment);
2577                                 g_object_unref (ev_attachment);
2578                         } else if (error) {
2579                                 g_warning ("%s", error->message);
2580                                 g_error_free (error);
2581                         }
2582
2583                         if (poppler_attachment)
2584                                 g_object_unref (poppler_attachment);
2585                 }
2586                         break;
2587 #endif /* HAVE_POPPLER_ANNOT_FILE_ATTACHMENT_GET_ATTACHMENT */
2588                 case POPPLER_ANNOT_LINK:
2589                 case POPPLER_ANNOT_WIDGET:
2590                         /* Ignore link and widgets annots since they are already handled */
2591                         break;
2592                 default: {
2593                         GEnumValue *enum_value;
2594
2595                         enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_ANNOT_TYPE),
2596                                                        poppler_annot_get_annot_type (poppler_annot));
2597                         unimplemented_annot = enum_value ? enum_value->value_name : "Unknown annotation";
2598                 }
2599         }
2600
2601         if (unimplemented_annot) {
2602                 g_warning ("Unimplemented annotation: %s, please post a "
2603                            "bug report in Evince bugzilla "
2604                            "(http://bugzilla.gnome.org) with a testcase.",
2605                            unimplemented_annot);
2606         }
2607
2608         if (ev_annot) {
2609                 ev_annot->contents = poppler_annot_get_contents (poppler_annot);
2610                 ev_annot->name = poppler_annot_get_name (poppler_annot);
2611                 ev_annot->modified = poppler_annot_get_modified (poppler_annot);
2612                 poppler_annot_color_to_gdk_color (poppler_annot, &ev_annot->color);
2613
2614                 if (POPPLER_IS_ANNOT_MARKUP (poppler_annot)) {
2615                         PopplerAnnotMarkup *markup;
2616                         gchar *label;
2617                         gdouble opacity;
2618                         PopplerRectangle poppler_rect;
2619
2620                         markup = POPPLER_ANNOT_MARKUP (poppler_annot);
2621
2622                         if (poppler_annot_markup_get_popup_rectangle (markup, &poppler_rect)) {
2623                                 EvRectangle ev_rect;
2624                                 gboolean is_open;
2625                                 gdouble height;
2626
2627                                 poppler_page_get_size (POPPLER_PAGE (page->backend_page),
2628                                                        NULL, &height);
2629                                 ev_rect.x1 = poppler_rect.x1;
2630                                 ev_rect.x2 = poppler_rect.x2;
2631                                 ev_rect.y1 = height - poppler_rect.y2;
2632                                 ev_rect.y2 = height - poppler_rect.y1;
2633
2634                                 is_open = poppler_annot_markup_get_popup_is_open (markup);
2635
2636                                 g_object_set (ev_annot,
2637                                               "rectangle", &ev_rect,
2638                                               "is_open", is_open,
2639                                               "has_popup", TRUE,
2640                                               NULL);
2641                         } else {
2642                                 /* FIXME: Use poppler_annot_markup_has_popup() when
2643                                  * new poppler is released.
2644                                  */
2645                                 g_object_set (ev_annot,
2646                                               "has_popup", FALSE,
2647                                               NULL);
2648                         }
2649
2650                         label = poppler_annot_markup_get_label (markup);
2651                         opacity = poppler_annot_markup_get_opacity (markup);
2652
2653                         g_object_set (ev_annot,
2654                                       "label", label,
2655                                       "opacity", opacity,
2656                                       NULL);
2657
2658                         g_free (label);
2659                 }
2660         }
2661
2662         return ev_annot;
2663 }
2664
2665 static GList *
2666 pdf_document_annotations_get_annotations (EvDocumentAnnotations *document_annotations,
2667                                           EvPage                *page)
2668 {
2669         GList *retval = NULL;
2670         PdfDocument *pdf_document;
2671         PopplerPage *poppler_page;
2672         GList *annots;
2673         GList *list;
2674         gdouble height;
2675         gint i = 0;
2676
2677         pdf_document = PDF_DOCUMENT (document_annotations);
2678         poppler_page = POPPLER_PAGE (page->backend_page);
2679         annots = poppler_page_get_annot_mapping (poppler_page);
2680         poppler_page_get_size (poppler_page, NULL, &height);
2681
2682         for (list = annots; list; list = list->next) {
2683                 PopplerAnnotMapping *mapping;
2684                 EvMapping *annot_mapping;
2685                 EvAnnotation        *ev_annot;
2686
2687                 mapping = (PopplerAnnotMapping *)list->data;
2688
2689                 ev_annot = ev_annot_from_poppler_annot (mapping->annot, page);
2690                 if (!ev_annot)
2691                         continue;
2692
2693                 i++;
2694
2695                 /* Make sure annot has a unique name */
2696                 if (!ev_annot->name)
2697                         ev_annot->name = g_strdup_printf ("annot-%d-%d", page->index, i);
2698
2699                 annot_mapping = g_new (EvMapping, 1);
2700                 annot_mapping->area.x1 = mapping->area.x1;
2701                 annot_mapping->area.x2 = mapping->area.x2;
2702                 annot_mapping->area.y1 = height - mapping->area.y2;
2703                 annot_mapping->area.y2 = height - mapping->area.y1;
2704                 annot_mapping->data = ev_annot;
2705
2706                 g_object_set_data_full (G_OBJECT (ev_annot),
2707                                         "poppler-annot",
2708                                         g_object_ref (mapping->annot),
2709                                         (GDestroyNotify) g_object_unref);
2710
2711                 retval = g_list_prepend (retval, annot_mapping);
2712         }
2713
2714         poppler_page_free_annot_mapping (annots);
2715
2716         return g_list_reverse (retval);
2717 }
2718
2719 static void
2720 pdf_document_annotations_annotation_set_contents (EvDocumentAnnotations *document,
2721                                                   EvAnnotation          *annot,
2722                                                   const gchar           *contents)
2723 {
2724         PopplerAnnot *poppler_annot;
2725
2726         poppler_annot = POPPLER_ANNOT (g_object_get_data (G_OBJECT (annot), "poppler-annot"));
2727         if (!poppler_annot)
2728                 return;
2729
2730         poppler_annot_set_contents (poppler_annot, contents);
2731         PDF_DOCUMENT (document)->modified = TRUE;
2732 }
2733
2734 static void
2735 pdf_document_document_annotations_iface_init (EvDocumentAnnotationsInterface *iface)
2736 {
2737         iface->get_annotations = pdf_document_annotations_get_annotations;
2738         iface->annotation_set_contents = pdf_document_annotations_annotation_set_contents;
2739 }
2740
2741 /* Attachments */
2742 struct SaveToBufferData {
2743         gchar *buffer;
2744         gsize len, max;
2745 };
2746
2747 static gboolean
2748 attachment_save_to_buffer_callback (const gchar  *buf,
2749                                     gsize         count,
2750                                     gpointer      user_data,
2751                                     GError      **error)
2752 {
2753         struct SaveToBufferData *sdata = (SaveToBufferData *)user_data;
2754         gchar *new_buffer;
2755         gsize new_max;
2756
2757         if (sdata->len + count > sdata->max) {
2758                 new_max = MAX (sdata->max * 2, sdata->len + count);
2759                 new_buffer = (gchar *)g_realloc (sdata->buffer, new_max);
2760
2761                 sdata->buffer = new_buffer;
2762                 sdata->max = new_max;
2763         }
2764
2765         memcpy (sdata->buffer + sdata->len, buf, count);
2766         sdata->len += count;
2767
2768         return TRUE;
2769 }
2770
2771 static gboolean
2772 attachment_save_to_buffer (PopplerAttachment  *attachment,
2773                            gchar             **buffer,
2774                            gsize              *buffer_size,
2775                            GError            **error)
2776 {
2777         static const gint initial_max = 1024;
2778         struct SaveToBufferData sdata;
2779
2780         *buffer = NULL;
2781         *buffer_size = 0;
2782
2783         sdata.buffer = (gchar *) g_malloc (initial_max);
2784         sdata.max = initial_max;
2785         sdata.len = 0;
2786
2787         if (! poppler_attachment_save_to_callback (attachment,
2788                                                    attachment_save_to_buffer_callback,
2789                                                    &sdata,
2790                                                    error)) {
2791                 g_free (sdata.buffer);
2792                 return FALSE;
2793         }
2794
2795         *buffer = sdata.buffer;
2796         *buffer_size = sdata.len;
2797
2798         return TRUE;
2799 }
2800
2801 static GList *
2802 pdf_document_attachments_get_attachments (EvDocumentAttachments *document)
2803 {
2804         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2805         GList *attachments;
2806         GList *list;
2807         GList *retval = NULL;
2808
2809         attachments = poppler_document_get_attachments (pdf_document->document);
2810
2811         for (list = attachments; list; list = list->next) {
2812                 PopplerAttachment *attachment;
2813                 EvAttachment *ev_attachment;
2814                 gchar *data = NULL;
2815                 gsize size;
2816                 GError *error = NULL;
2817
2818                 attachment = (PopplerAttachment *) list->data;
2819
2820                 if (attachment_save_to_buffer (attachment, &data, &size, &error)) {
2821                         ev_attachment = ev_attachment_new (attachment->name,
2822                                                            attachment->description,
2823                                                            attachment->mtime,
2824                                                            attachment->ctime,
2825                                                            size, data);
2826
2827                         retval = g_list_prepend (retval, ev_attachment);
2828                 } else {
2829                         if (error) {
2830                                 g_warning ("%s", error->message);
2831                                 g_error_free (error);
2832
2833                                 g_free (data);
2834                         }
2835                 }
2836
2837                 g_object_unref (attachment);
2838         }
2839
2840         return g_list_reverse (retval);
2841 }
2842
2843 static gboolean
2844 pdf_document_attachments_has_attachments (EvDocumentAttachments *document)
2845 {
2846         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2847
2848         return poppler_document_has_attachments (pdf_document->document);
2849 }
2850
2851 static void
2852 pdf_document_document_attachments_iface_init (EvDocumentAttachmentsInterface *iface)
2853 {
2854         iface->has_attachments = pdf_document_attachments_has_attachments;
2855         iface->get_attachments = pdf_document_attachments_get_attachments;
2856 }
2857
2858 /* Layers */
2859 static gboolean
2860 pdf_document_layers_has_layers (EvDocumentLayers *document)
2861 {
2862         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2863         PopplerLayersIter *iter;
2864
2865         iter = poppler_layers_iter_new (pdf_document->document);
2866         if (!iter)
2867                 return FALSE;
2868         poppler_layers_iter_free (iter);
2869
2870         return TRUE;
2871 }
2872
2873 static void
2874 build_layers_tree (PdfDocument       *pdf_document,
2875                    GtkTreeModel      *model,
2876                    GtkTreeIter       *parent,
2877                    PopplerLayersIter *iter)
2878 {
2879         do {
2880                 GtkTreeIter        tree_iter;
2881                 PopplerLayersIter *child;
2882                 PopplerLayer      *layer;
2883                 EvLayer           *ev_layer = NULL;
2884                 gboolean           visible;
2885                 gchar             *markup;
2886                 gint               rb_group = 0;
2887
2888                 layer = poppler_layers_iter_get_layer (iter);
2889                 if (layer) {
2890                         markup = g_markup_escape_text (poppler_layer_get_title (layer), -1);
2891                         visible = poppler_layer_is_visible (layer);
2892                         rb_group = poppler_layer_get_radio_button_group_id (layer);
2893                         pdf_document->layers = g_list_append (pdf_document->layers,
2894                                                               g_object_ref (layer));
2895                         ev_layer = ev_layer_new (g_list_length (pdf_document->layers) - 1,
2896                                                  poppler_layer_is_parent (layer),
2897                                                  rb_group);
2898                 } else {
2899                         gchar *title;
2900
2901                         title = poppler_layers_iter_get_title (iter);
2902                         markup = g_markup_escape_text (title, -1);
2903                         g_free (title);
2904
2905                         visible = FALSE;
2906                         layer = NULL;
2907                 }
2908
2909                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
2910                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
2911                                     EV_DOCUMENT_LAYERS_COLUMN_TITLE, markup,
2912                                     EV_DOCUMENT_LAYERS_COLUMN_VISIBLE, visible,
2913                                     EV_DOCUMENT_LAYERS_COLUMN_ENABLED, TRUE, /* FIXME */
2914                                     EV_DOCUMENT_LAYERS_COLUMN_SHOWTOGGLE, (layer != NULL),
2915                                     EV_DOCUMENT_LAYERS_COLUMN_RBGROUP, rb_group,
2916                                     EV_DOCUMENT_LAYERS_COLUMN_LAYER, ev_layer,
2917                                     -1);
2918                 if (ev_layer)
2919                         g_object_unref (ev_layer);
2920                 g_free (markup);
2921
2922                 child = poppler_layers_iter_get_child (iter);
2923                 if (child)
2924                         build_layers_tree (pdf_document, model, &tree_iter, child);
2925                 poppler_layers_iter_free (child);
2926         } while (poppler_layers_iter_next (iter));
2927 }
2928
2929 static GtkTreeModel *
2930 pdf_document_layers_get_layers (EvDocumentLayers *document)
2931 {
2932         GtkTreeModel *model = NULL;
2933         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2934         PopplerLayersIter *iter;
2935
2936         iter = poppler_layers_iter_new (pdf_document->document);
2937         if (iter) {
2938                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LAYERS_N_COLUMNS,
2939                                                              G_TYPE_STRING,  /* TITLE */
2940                                                              G_TYPE_OBJECT,  /* LAYER */
2941                                                              G_TYPE_BOOLEAN, /* VISIBLE */
2942                                                              G_TYPE_BOOLEAN, /* ENABLED */
2943                                                              G_TYPE_BOOLEAN, /* SHOWTOGGLE */
2944                                                              G_TYPE_INT);    /* RBGROUP */
2945                 build_layers_tree (pdf_document, model, NULL, iter);
2946                 poppler_layers_iter_free (iter);
2947         }
2948         return model;
2949 }
2950
2951 static void
2952 pdf_document_layers_show_layer (EvDocumentLayers *document,
2953                                 EvLayer          *layer)
2954 {
2955         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2956         guint        layer_id = ev_layer_get_id (layer);
2957
2958         poppler_layer_show (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2959 }
2960
2961 static void
2962 pdf_document_layers_hide_layer (EvDocumentLayers *document,
2963                                 EvLayer          *layer)
2964 {
2965         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2966         guint        layer_id = ev_layer_get_id (layer);
2967
2968         poppler_layer_hide (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2969 }
2970
2971 static gboolean
2972 pdf_document_layers_layer_is_visible (EvDocumentLayers *document,
2973                                       EvLayer          *layer)
2974 {
2975         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2976         guint        layer_id = ev_layer_get_id (layer);
2977
2978         return poppler_layer_is_visible (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2979 }
2980
2981 static void
2982 pdf_document_document_layers_iface_init (EvDocumentLayersInterface *iface)
2983 {
2984         iface->has_layers = pdf_document_layers_has_layers;
2985         iface->get_layers = pdf_document_layers_get_layers;
2986         iface->show_layer = pdf_document_layers_show_layer;
2987         iface->hide_layer = pdf_document_layers_hide_layer;
2988         iface->layer_is_visible = pdf_document_layers_layer_is_visible;
2989 }