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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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             (EvDocumentSecurityIface    *iface);
 126 static void pdf_document_document_thumbnails_iface_init  (EvDocumentThumbnailsIface  *iface);
 127 static void pdf_document_document_links_iface_init       (EvDocumentLinksIface       *iface);
 128 static void pdf_document_document_images_iface_init      (EvDocumentImagesIface      *iface);
 129 static void pdf_document_document_forms_iface_init       (EvDocumentFormsIface       *iface);
 130 static void pdf_document_document_fonts_iface_init       (EvDocumentFontsIface       *iface);
 131 static void pdf_document_document_layers_iface_init      (EvDocumentLayersIface      *iface);
 132 #ifdef HAVE_POPPLER_PAGE_RENDER
 133 static void pdf_document_document_print_iface_init       (EvDocumentPrintIface       *iface);
 134 #endif
 135 static void pdf_document_document_annotations_iface_init (EvDocumentAnnotationsIface *iface);
 136 static void pdf_document_document_attachments_iface_init (EvDocumentAttachmentsIface *iface);
 137 static void pdf_document_find_iface_init                 (EvDocumentFindIface        *iface);
 138 static void pdf_document_file_exporter_iface_init        (EvFileExporterIface        *iface);
 139 static void pdf_selection_iface_init                     (EvSelectionIface           *iface);
 140 static void pdf_document_page_transition_iface_init      (EvDocumentTransitionIface  *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 void
 834 pdf_document_class_init (PdfDocumentClass *klass)
 835 {
 836         GObjectClass    *g_object_class = G_OBJECT_CLASS (klass);
 837         EvDocumentClass *ev_document_class = EV_DOCUMENT_CLASS (klass);
 838
 839         g_object_class->dispose = pdf_document_dispose;
 840
 841         ev_document_class->save = pdf_document_save;
 842         ev_document_class->load = pdf_document_load;
 843         ev_document_class->get_n_pages = pdf_document_get_n_pages;
 844         ev_document_class->get_page = pdf_document_get_page;
 845         ev_document_class->get_page_size = pdf_document_get_page_size;
 846         ev_document_class->get_page_label = pdf_document_get_page_label;
 847         ev_document_class->render = pdf_document_render;
 848         ev_document_class->get_info = pdf_document_get_info;
 849 }
 850
 851 /* EvDocumentSecurity */
 852 static gboolean
 853 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 854 {
 855         /* FIXME: do we really need to have this? */
 856         return FALSE;
 857 }
 858
 859 static void
 860 pdf_document_set_password (EvDocumentSecurity *document_security,
 861                            const char         *password)
 862 {
 863         PdfDocument *document = PDF_DOCUMENT (document_security);
 864
 865         if (document->password)
 866                 g_free (document->password);
 867
 868         document->password = g_strdup (password);
 869 }
 870
 871 static void
 872 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 873 {
 874         iface->has_document_security = pdf_document_has_document_security;
 875         iface->set_password = pdf_document_set_password;
 876 }
 877
 878 static gdouble
 879 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 880 {
 881         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 882         int n_pages;
 883
 884         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 885
 886         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 887 }
 888
 889 static gboolean
 890 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 891                          int              n_pages)
 892 {
 893         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 894         gboolean result;
 895
 896         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 897
 898         if (pdf_document->font_info == NULL) {
 899                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 900         }
 901
 902         if (pdf_document->fonts_iter) {
 903                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 904         }
 905
 906         pdf_document->fonts_scanned_pages += n_pages;
 907
 908         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 909                                          &pdf_document->fonts_iter);
 910         if (!result) {
 911                 pdf_document->fonts_scanned_pages = 0;
 912                 poppler_font_info_free (pdf_document->font_info);
 913                 pdf_document->font_info = NULL;
 914         }
 915
 916         return result;
 917 }
 918
 919 static const char *
 920 font_type_to_string (PopplerFontType type)
 921 {
 922         switch (type) {
 923                 case POPPLER_FONT_TYPE_TYPE1:
 924                         return _("Type 1");
 925                 case POPPLER_FONT_TYPE_TYPE1C:
 926                         return _("Type 1C");
 927                 case POPPLER_FONT_TYPE_TYPE3:
 928                         return _("Type 3");
 929                 case POPPLER_FONT_TYPE_TRUETYPE:
 930                         return _("TrueType");
 931                 case POPPLER_FONT_TYPE_CID_TYPE0:
 932                         return _("Type 1 (CID)");
 933                 case POPPLER_FONT_TYPE_CID_TYPE0C:
 934                         return _("Type 1C (CID)");
 935                 case POPPLER_FONT_TYPE_CID_TYPE2:
 936                         return _("TrueType (CID)");
 937                 default:
 938                         return _("Unknown font type");
 939         }
 940 }
 941
 942 static void
 943 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 944                                GtkTreeModel    *model)
 945 {
 946         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 947         PopplerFontsIter *iter = pdf_document->fonts_iter;
 948
 949         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 950
 951         if (!iter)
 952                 return;
 953
 954         do {
 955                 GtkTreeIter list_iter;
 956                 const char *name;
 957                 const char *type;
 958                 const char *embedded;
 959                 char *details;
 960
 961                 name = poppler_fonts_iter_get_name (iter);
 962
 963                 if (name == NULL) {
 964                         name = _("No name");
 965                 }
 966
 967                 type = font_type_to_string (
 968                         poppler_fonts_iter_get_font_type (iter));
 969
 970                 if (poppler_fonts_iter_is_embedded (iter)) {
 971                         if (poppler_fonts_iter_is_subset (iter))
 972                                 embedded = _("Embedded subset");
 973                         else
 974                                 embedded = _("Embedded");
 975                 } else {
 976                         embedded = _("Not embedded");
 977                 }
 978
 979                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 980
 981                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 982                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 983                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 984                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 985                                     -1);
 986
 987                 g_free (details);
 988         } while (poppler_fonts_iter_next (iter));
 989 }
 990
 991 static void
 992 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 993 {
 994         iface->fill_model = pdf_document_fonts_fill_model;
 995         iface->scan = pdf_document_fonts_scan;
 996         iface->get_progress = pdf_document_fonts_get_progress;
 997 }
 998
 999 static gboolean
1000 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
1001 {
1002         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1003         PopplerIndexIter *iter;
1004
1005         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
1006
1007         iter = poppler_index_iter_new (pdf_document->document);
1008         if (iter == NULL)
1009                 return FALSE;
1010         poppler_index_iter_free (iter);
1011
1012         return TRUE;
1013 }
1014
1015 static EvLinkDest *
1016 ev_link_dest_from_dest (PdfDocument *pdf_document,
1017                         PopplerDest *dest)
1018 {
1019         EvLinkDest *ev_dest = NULL;
1020         const char *unimplemented_dest = NULL;
1021
1022         g_assert (dest != NULL);
1023
1024         switch (dest->type) {
1025                 case POPPLER_DEST_XYZ: {
1026                         PopplerPage *poppler_page;
1027                         double height;
1028
1029                         poppler_page = poppler_document_get_page (pdf_document->document,
1030                                                                   MAX (0, dest->page_num - 1));
1031                         poppler_page_get_size (poppler_page, NULL, &height);
1032                         ev_dest = ev_link_dest_new_xyz (dest->page_num - 1,
1033                                                         dest->left,
1034                                                         height - MIN (height, dest->top),
1035                                                         dest->zoom,
1036                                                         dest->change_left,
1037                                                         dest->change_top,
1038                                                         dest->change_zoom);
1039                         g_object_unref (poppler_page);
1040                 }
1041                         break;
1042                 case POPPLER_DEST_FITB:
1043                 case POPPLER_DEST_FIT:
1044                         ev_dest = ev_link_dest_new_fit (dest->page_num - 1);
1045                         break;
1046                 case POPPLER_DEST_FITBH:
1047                 case POPPLER_DEST_FITH: {
1048                         PopplerPage *poppler_page;
1049                         double height;
1050
1051                         poppler_page = poppler_document_get_page (pdf_document->document,
1052                                                                   MAX (0, dest->page_num - 1));
1053                         poppler_page_get_size (poppler_page, NULL, &height);
1054                         ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
1055                                                          height - MIN (height, dest->top),
1056                                                          dest->change_top);
1057                         g_object_unref (poppler_page);
1058                 }
1059                         break;
1060                 case POPPLER_DEST_FITBV:
1061                 case POPPLER_DEST_FITV:
1062                         ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
1063                                                          dest->left,
1064                                                          dest->change_left);
1065                         break;
1066                 case POPPLER_DEST_FITR: {
1067                         PopplerPage *poppler_page;
1068                         double height;
1069
1070                         poppler_page = poppler_document_get_page (pdf_document->document,
1071                                                                   MAX (0, dest->page_num - 1));
1072                         poppler_page_get_size (poppler_page, NULL, &height);
1073                         ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
1074                                                          dest->left,
1075                                                          height - MIN (height, dest->bottom),
1076                                                          dest->right,
1077                                                          height - MIN (height, dest->top));
1078                         g_object_unref (poppler_page);
1079                 }
1080                         break;
1081                 case POPPLER_DEST_NAMED:
1082                         ev_dest = ev_link_dest_new_named (dest->named_dest);
1083                         break;
1084                 case POPPLER_DEST_UNKNOWN:
1085                         unimplemented_dest = "POPPLER_DEST_UNKNOWN";
1086                         break;
1087         }
1088
1089         if (unimplemented_dest) {
1090                 g_warning ("Unimplemented destination: %s, please post a "
1091                            "bug report in Evince bugzilla "
1092                            "(http://bugzilla.gnome.org) with a testcase.",
1093                            unimplemented_dest);
1094         }
1095
1096         if (!ev_dest)
1097                 ev_dest = ev_link_dest_new_page (dest->page_num - 1);
1098
1099         return ev_dest;
1100 }
1101
1102 static EvLink *
1103 ev_link_from_action (PdfDocument   *pdf_document,
1104                      PopplerAction *action)
1105 {
1106         EvLink       *link = NULL;
1107         EvLinkAction *ev_action = NULL;
1108         const char   *unimplemented_action = NULL;
1109
1110         switch (action->type) {
1111                 case POPPLER_ACTION_NONE:
1112                         break;
1113                 case POPPLER_ACTION_GOTO_DEST: {
1114                         EvLinkDest *dest;
1115
1116                         dest = ev_link_dest_from_dest (pdf_document, action->goto_dest.dest);
1117                         ev_action = ev_link_action_new_dest (dest);
1118                 }
1119                         break;
1120                 case POPPLER_ACTION_GOTO_REMOTE: {
1121                         EvLinkDest *dest;
1122
1123                         dest = ev_link_dest_from_dest (pdf_document, action->goto_remote.dest);
1124                         ev_action = ev_link_action_new_remote (dest,
1125                                                                action->goto_remote.file_name);
1126
1127                 }
1128                         break;
1129                 case POPPLER_ACTION_LAUNCH:
1130                         ev_action = ev_link_action_new_launch (action->launch.file_name,
1131                                                                action->launch.params);
1132                         break;
1133                 case POPPLER_ACTION_URI:
1134                         ev_action = ev_link_action_new_external_uri (action->uri.uri);
1135                         break;
1136                 case POPPLER_ACTION_NAMED:
1137                         ev_action = ev_link_action_new_named (action->named.named_dest);
1138                         break;
1139                 case POPPLER_ACTION_MOVIE:
1140                         unimplemented_action = "POPPLER_ACTION_MOVIE";
1141                         break;
1142                 case POPPLER_ACTION_UNKNOWN:
1143                         unimplemented_action = "POPPLER_ACTION_UNKNOWN";
1144         }
1145
1146         if (unimplemented_action) {
1147                 g_warning ("Unimplemented action: %s, please post a bug report "
1148                            "in Evince bugzilla (http://bugzilla.gnome.org) "
1149                            "with a testcase.", unimplemented_action);
1150         }
1151
1152         link = ev_link_new (action->any.title, ev_action);
1153
1154         return link;
1155 }
1156
1157 static void
1158 build_tree (PdfDocument      *pdf_document,
1159             GtkTreeModel     *model,
1160             GtkTreeIter      *parent,
1161             PopplerIndexIter *iter)
1162 {
1163
1164         do {
1165                 GtkTreeIter tree_iter;
1166                 PopplerIndexIter *child;
1167                 PopplerAction *action;
1168                 EvLink *link = NULL;
1169                 gboolean expand;
1170                 char *title_markup;
1171
1172                 action = poppler_index_iter_get_action (iter);
1173                 expand = poppler_index_iter_is_open (iter);
1174
1175                 if (!action)
1176                         continue;
1177
1178                 switch (action->type) {
1179                         case POPPLER_ACTION_GOTO_DEST: {
1180                                 /* For bookmarks, solve named destinations */
1181                                 if (action->goto_dest.dest->type == POPPLER_DEST_NAMED) {
1182                                         PopplerDest *dest;
1183                                         EvLinkDest *ev_dest = NULL;
1184                                         EvLinkAction *ev_action;
1185
1186                                         dest = poppler_document_find_dest (pdf_document->document,
1187                                                                            action->goto_dest.dest->named_dest);
1188                                         if (!dest) {
1189                                                 link = ev_link_from_action (pdf_document, action);
1190                                                 break;
1191                                         }
1192
1193                                         ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1194                                         poppler_dest_free (dest);
1195
1196                                         ev_action = ev_link_action_new_dest (ev_dest);
1197                                         link = ev_link_new (action->any.title, ev_action);
1198                                 } else {
1199                                         link = ev_link_from_action (pdf_document, action);
1200                                 }
1201                         }
1202                                 break;
1203                         default:
1204                                 link = ev_link_from_action (pdf_document, action);
1205                                 break;
1206                 }
1207
1208                 if (!link || strlen (ev_link_get_title (link)) <= 0) {
1209                         poppler_action_free (action);
1210                         if (link)
1211                                 g_object_unref (link);
1212
1213                         continue;
1214                 }
1215
1216                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
1217                 title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
1218
1219                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
1220                                     EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
1221                                     EV_DOCUMENT_LINKS_COLUMN_LINK, link,
1222                                     EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
1223                                     -1);
1224
1225                 g_free (title_markup);
1226                 g_object_unref (link);
1227
1228                 child = poppler_index_iter_get_child (iter);
1229                 if (child)
1230                         build_tree (pdf_document, model, &tree_iter, child);
1231                 poppler_index_iter_free (child);
1232                 poppler_action_free (action);
1233
1234         } while (poppler_index_iter_next (iter));
1235 }
1236
1237 static GtkTreeModel *
1238 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
1239 {
1240         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1241         GtkTreeModel *model = NULL;
1242         PopplerIndexIter *iter;
1243
1244         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
1245
1246         iter = poppler_index_iter_new (pdf_document->document);
1247         /* Create the model if we have items*/
1248         if (iter != NULL) {
1249                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
1250                                                              G_TYPE_STRING,
1251                                                              G_TYPE_OBJECT,
1252                                                              G_TYPE_BOOLEAN,
1253                                                              G_TYPE_STRING);
1254                 build_tree (pdf_document, model, NULL, iter);
1255                 poppler_index_iter_free (iter);
1256         }
1257
1258         return model;
1259 }
1260
1261 static GList *
1262 pdf_document_links_get_links (EvDocumentLinks *document_links,
1263                               EvPage          *page)
1264 {
1265         PdfDocument *pdf_document;
1266         PopplerPage *poppler_page;
1267         GList *retval = NULL;
1268         GList *mapping_list;
1269         GList *list;
1270         double height;
1271
1272         pdf_document = PDF_DOCUMENT (document_links);
1273         poppler_page = POPPLER_PAGE (page->backend_page);
1274         mapping_list = poppler_page_get_link_mapping (poppler_page);
1275         poppler_page_get_size (poppler_page, NULL, &height);
1276
1277         for (list = mapping_list; list; list = list->next) {
1278                 PopplerLinkMapping *link_mapping;
1279                 EvMapping *ev_link_mapping;
1280
1281                 link_mapping = (PopplerLinkMapping *)list->data;
1282                 ev_link_mapping = g_new (EvMapping, 1);
1283                 ev_link_mapping->data = ev_link_from_action (pdf_document,
1284                                                              link_mapping->action);
1285                 ev_link_mapping->area.x1 = link_mapping->area.x1;
1286                 ev_link_mapping->area.x2 = link_mapping->area.x2;
1287                 /* Invert this for X-style coordinates */
1288                 ev_link_mapping->area.y1 = height - link_mapping->area.y2;
1289                 ev_link_mapping->area.y2 = height - link_mapping->area.y1;
1290
1291                 retval = g_list_prepend (retval, ev_link_mapping);
1292         }
1293
1294         poppler_page_free_link_mapping (mapping_list);
1295
1296         return g_list_reverse (retval);
1297 }
1298
1299 static EvLinkDest *
1300 pdf_document_links_find_link_dest (EvDocumentLinks  *document_links,
1301                                    const gchar      *link_name)
1302 {
1303         PdfDocument *pdf_document;
1304         PopplerDest *dest;
1305         EvLinkDest *ev_dest = NULL;
1306
1307         pdf_document = PDF_DOCUMENT (document_links);
1308         dest = poppler_document_find_dest (pdf_document->document,
1309                                            link_name);
1310         if (dest) {
1311                 ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1312                 poppler_dest_free (dest);
1313         }
1314
1315         return ev_dest;
1316 }
1317
1318 static void
1319 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
1320 {
1321         iface->has_document_links = pdf_document_links_has_document_links;
1322         iface->get_links_model = pdf_document_links_get_links_model;
1323         iface->get_links = pdf_document_links_get_links;
1324         iface->find_link_dest = pdf_document_links_find_link_dest;
1325 }
1326
1327 static GList *
1328 pdf_document_images_get_image_mapping (EvDocumentImages *document_images,
1329                                        gint              page)
1330 {
1331         GList *retval = NULL;
1332         PdfDocument *pdf_document;
1333         PopplerPage *poppler_page;
1334         GList *mapping_list;
1335         GList *list;
1336
1337         pdf_document = PDF_DOCUMENT (document_images);
1338         poppler_page = poppler_document_get_page (pdf_document->document, page);
1339         mapping_list = poppler_page_get_image_mapping (poppler_page);
1340
1341         for (list = mapping_list; list; list = list->next) {
1342                 PopplerImageMapping *image_mapping;
1343                 EvMapping *ev_image_mapping;
1344
1345                 image_mapping = (PopplerImageMapping *)list->data;
1346
1347                 ev_image_mapping = g_new (EvMapping, 1);
1348
1349                 ev_image_mapping->data = ev_image_new (page, image_mapping->image_id);
1350                 ev_image_mapping->area.x1 = image_mapping->area.x1;
1351                 ev_image_mapping->area.y1 = image_mapping->area.y1;
1352                 ev_image_mapping->area.x2 = image_mapping->area.x2;
1353                 ev_image_mapping->area.y2 = image_mapping->area.y2;
1354
1355                 retval = g_list_prepend (retval, ev_image_mapping);
1356         }
1357
1358         poppler_page_free_image_mapping (mapping_list);
1359         g_object_unref (poppler_page);
1360
1361         return g_list_reverse (retval);
1362 }
1363
1364 GdkPixbuf *
1365 pdf_document_images_get_image (EvDocumentImages *document_images,
1366                                EvImage          *image)
1367 {
1368         GdkPixbuf       *retval = NULL;
1369 #ifdef HAVE_POPPLER_PAGE_GET_IMAGE
1370         PdfDocument     *pdf_document;
1371         PopplerPage     *poppler_page;
1372         cairo_surface_t *surface;
1373
1374         pdf_document = PDF_DOCUMENT (document_images);
1375         poppler_page = poppler_document_get_page (pdf_document->document,
1376                                                   ev_image_get_page (image));
1377
1378         surface = poppler_page_get_image (poppler_page, ev_image_get_id (image));
1379         if (surface) {
1380                 retval = ev_document_misc_pixbuf_from_surface (surface);
1381                 cairo_surface_destroy (surface);
1382         }
1383
1384         g_object_unref (poppler_page);
1385 #endif
1386         return retval;
1387 }
1388
1389 static void
1390 pdf_document_document_images_iface_init (EvDocumentImagesIface *iface)
1391 {
1392         iface->get_image_mapping = pdf_document_images_get_image_mapping;
1393         iface->get_image = pdf_document_images_get_image;
1394 }
1395
1396 static GdkPixbuf *
1397 make_thumbnail_for_page (PopplerPage     *poppler_page,
1398                          EvRenderContext *rc,
1399                          gint             width,
1400                          gint             height)
1401 {
1402         GdkPixbuf *pixbuf;
1403
1404 #ifdef POPPLER_WITH_GDK
1405         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1406                                  width, height);
1407         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1408
1409         ev_document_fc_mutex_lock ();
1410         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1411                                        width, height,
1412                                        rc->scale, rc->rotation, pixbuf);
1413         ev_document_fc_mutex_unlock ();
1414 #else
1415         cairo_surface_t *surface;
1416
1417         ev_document_fc_mutex_lock ();
1418         surface = pdf_page_render (poppler_page, width, height, rc);
1419         ev_document_fc_mutex_unlock ();
1420
1421         pixbuf = ev_document_misc_pixbuf_from_surface (surface);
1422         cairo_surface_destroy (surface);
1423 #endif /* POPPLER_WITH_GDK */
1424
1425         return pixbuf;
1426 }
1427
1428 static GdkPixbuf *
1429 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1430                                        EvRenderContext      *rc,
1431                                        gboolean              border)
1432 {
1433         PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails);
1434         PopplerPage *poppler_page;
1435         GdkPixbuf *pixbuf = NULL;
1436         GdkPixbuf *border_pixbuf;
1437         gint width, height;
1438
1439         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1440
1441         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document),
1442                                                 rc, &width, &height);
1443
1444 #ifdef POPPLER_WITH_GDK
1445         pixbuf = poppler_page_get_thumbnail_pixbuf (poppler_page);
1446 #else
1447         cairo_surface_t *surface;
1448
1449         surface = poppler_page_get_thumbnail (poppler_page);
1450         if (surface) {
1451                 pixbuf = ev_document_misc_pixbuf_from_surface (surface);
1452                 cairo_surface_destroy (surface);
1453         }
1454 #endif /* POPPLER_WITH_GDK */
1455
1456         if (pixbuf != NULL) {
1457                 int thumb_width = (rc->rotation == 90 || rc->rotation == 270) ?
1458                         gdk_pixbuf_get_height (pixbuf) :
1459                         gdk_pixbuf_get_width (pixbuf);
1460
1461                 if (thumb_width == width) {
1462                         GdkPixbuf *rotated_pixbuf;
1463
1464                         rotated_pixbuf = gdk_pixbuf_rotate_simple (pixbuf,
1465                                                                    (GdkPixbufRotation) (360 - rc->rotation));
1466                         g_object_unref (pixbuf);
1467                         pixbuf = rotated_pixbuf;
1468                 } else {
1469                         /* The provided thumbnail has a different size */
1470                         g_object_unref (pixbuf);
1471                         pixbuf = make_thumbnail_for_page (poppler_page, rc, width, height);
1472                 }
1473         } else {
1474                 /* There is no provided thumbnail. We need to make one. */
1475                 pixbuf = make_thumbnail_for_page (poppler_page, rc, width, height);
1476         }
1477
1478         if (border && pixbuf) {
1479                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
1480                 g_object_unref (pixbuf);
1481                 pixbuf = border_pixbuf;
1482         }
1483
1484         return pixbuf;
1485 }
1486
1487 static void
1488 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1489                                         EvRenderContext      *rc,
1490                                         gint                 *width,
1491                                         gint                 *height)
1492 {
1493         double page_width, page_height;
1494
1495         poppler_page_get_size (POPPLER_PAGE (rc->page->backend_page),
1496                                &page_width, &page_height);
1497
1498         *width = MAX ((gint)(page_width * rc->scale + 0.5), 1);
1499         *height = MAX ((gint)(page_height * rc->scale + 0.5), 1);
1500
1501         if (rc->rotation == 90 || rc->rotation == 270) {
1502                 gint  temp;
1503
1504                 temp = *width;
1505                 *width = *height;
1506                 *height = temp;
1507         }
1508 }
1509
1510 static void
1511 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1512 {
1513         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1514         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1515 }
1516
1517
1518 static GList *
1519 pdf_document_find_find_text (EvDocumentFind *document_find,
1520                              EvPage         *page,
1521                              const gchar    *text,
1522                              gboolean        case_sensitive)
1523 {
1524         GList *matches, *l;
1525         PopplerPage *poppler_page;
1526         gdouble height;
1527
1528         g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
1529         g_return_val_if_fail (text != NULL, NULL);
1530
1531         poppler_page = POPPLER_PAGE (page->backend_page);
1532
1533         matches = poppler_page_find_text (poppler_page, text);
1534         if (!matches)
1535                 return NULL;
1536
1537         poppler_page_get_size (poppler_page, NULL, &height);
1538         for (l = matches; l && l->data; l = g_list_next (l)) {
1539                 PopplerRectangle *rect = (PopplerRectangle *)l->data;
1540                 gdouble           tmp;
1541
1542                 tmp = rect->y1;
1543                 rect->y1 = height - rect->y2;
1544                 rect->y2 = height - tmp;
1545         }
1546
1547         return matches;
1548 }
1549
1550 static void
1551 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1552 {
1553         iface->find_text = pdf_document_find_find_text;
1554 }
1555
1556 static void
1557 pdf_print_context_free (PdfPrintContext *ctx)
1558 {
1559         if (!ctx)
1560                 return;
1561
1562 #ifdef HAVE_CAIRO_PRINT
1563         if (ctx->cr) {
1564                 cairo_destroy (ctx->cr);
1565                 ctx->cr = NULL;
1566         }
1567 #else
1568         if (ctx->ps_file) {
1569                 poppler_ps_file_free (ctx->ps_file);
1570                 ctx->ps_file = NULL;
1571         }
1572 #endif
1573         g_free (ctx);
1574 }
1575
1576 static void
1577 pdf_document_file_exporter_begin (EvFileExporter        *exporter,
1578                                   EvFileExporterContext *fc)
1579 {
1580         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1581         PdfPrintContext *ctx;
1582 #ifdef HAVE_CAIRO_PRINT
1583         gdouble width, height;
1584         cairo_surface_t *surface = NULL;
1585 #endif
1586
1587         if (pdf_document->print_ctx)
1588                 pdf_print_context_free (pdf_document->print_ctx);
1589         pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
1590         ctx = pdf_document->print_ctx;
1591         ctx->format = fc->format;
1592
1593 #ifdef HAVE_CAIRO_PRINT
1594         ctx->pages_per_sheet = CLAMP (fc->pages_per_sheet, 1, 16);
1595
1596         ctx->paper_width = fc->paper_width;
1597         ctx->paper_height = fc->paper_height;
1598
1599         switch (fc->pages_per_sheet) {
1600                 default:
1601                 case 1:
1602                         ctx->pages_x = 1;
1603                         ctx->pages_y = 1;
1604                         break;
1605                 case 2:
1606                         ctx->pages_x = 1;
1607                         ctx->pages_y = 2;
1608                         break;
1609                 case 4:
1610                         ctx->pages_x = 2;
1611                         ctx->pages_y = 2;
1612                         break;
1613                 case 6:
1614                         ctx->pages_x = 2;
1615                         ctx->pages_y = 3;
1616                         break;
1617                 case 9:
1618                         ctx->pages_x = 3;
1619                         ctx->pages_y = 3;
1620                         break;
1621                 case 16:
1622                         ctx->pages_x = 4;
1623                         ctx->pages_y = 4;
1624                         break;
1625         }
1626
1627         ctx->pages_printed = 0;
1628
1629         switch (fc->format) {
1630                 case EV_FILE_FORMAT_PS:
1631 #ifdef HAVE_CAIRO_PS
1632                         surface = cairo_ps_surface_create (fc->filename, fc->paper_width, fc->paper_height);
1633 #endif
1634                         break;
1635                 case EV_FILE_FORMAT_PDF:
1636 #ifdef HAVE_CAIRO_PDF
1637                         surface = cairo_pdf_surface_create (fc->filename, fc->paper_width, fc->paper_height);
1638 #endif
1639                         break;
1640                 default:
1641                         g_assert_not_reached ();
1642         }
1643
1644         ctx->cr = cairo_create (surface);
1645         cairo_surface_destroy (surface);
1646
1647 #else /* HAVE_CAIRO_PRINT */
1648         if (ctx->format == EV_FILE_FORMAT_PS) {
1649                 ctx->ps_file = poppler_ps_file_new (pdf_document->document,
1650                                                     fc->filename, fc->first_page,
1651                                                     fc->last_page - fc->first_page + 1);
1652                 poppler_ps_file_set_paper_size (ctx->ps_file, fc->paper_width, fc->paper_height);
1653                 poppler_ps_file_set_duplex (ctx->ps_file, fc->duplex);
1654         }
1655 #endif /* HAVE_CAIRO_PRINT */
1656 }
1657
1658 static void
1659 pdf_document_file_exporter_begin_page (EvFileExporter *exporter)
1660 {
1661         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1662         PdfPrintContext *ctx = pdf_document->print_ctx;
1663
1664         g_return_if_fail (pdf_document->print_ctx != NULL);
1665
1666         ctx->pages_printed = 0;
1667
1668 #ifdef HAVE_CAIRO_PRINT
1669         if (ctx->paper_width > ctx->paper_height) {
1670                 if (ctx->format == EV_FILE_FORMAT_PS) {
1671                         cairo_ps_surface_set_size (cairo_get_target (ctx->cr),
1672                                                    ctx->paper_height,
1673                                                    ctx->paper_width);
1674                 } else if (ctx->format == EV_FILE_FORMAT_PDF) {
1675                         cairo_pdf_surface_set_size (cairo_get_target (ctx->cr),
1676                                                     ctx->paper_height,
1677                                                     ctx->paper_width);
1678                 }
1679         }
1680 #endif /* HAVE_CAIRO_PRINT */
1681 }
1682
1683 static void
1684 pdf_document_file_exporter_do_page (EvFileExporter  *exporter,
1685                                     EvRenderContext *rc)
1686 {
1687         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1688         PdfPrintContext *ctx = pdf_document->print_ctx;
1689         PopplerPage *poppler_page;
1690 #ifdef HAVE_CAIRO_PRINT
1691         gdouble  page_width, page_height;
1692         gint     x, y;
1693         gboolean rotate;
1694         gdouble  width, height;
1695         gdouble  pwidth, pheight;
1696         gdouble  xscale, yscale;
1697 #endif
1698
1699         g_return_if_fail (pdf_document->print_ctx != NULL);
1700
1701         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1702
1703 #ifdef HAVE_CAIRO_PRINT
1704         x = (ctx->pages_printed % ctx->pages_per_sheet) % ctx->pages_x;
1705         y = (ctx->pages_printed % ctx->pages_per_sheet) / ctx->pages_x;
1706         poppler_page_get_size (poppler_page, &page_width, &page_height);
1707
1708         if (page_width > page_height && page_width > ctx->paper_width) {
1709                 rotate = TRUE;
1710         } else {
1711                 rotate = FALSE;
1712         }
1713
1714         /* Use always portrait mode and rotate when necessary */
1715         if (ctx->paper_width > ctx->paper_height) {
1716                 width = ctx->paper_height;
1717                 height = ctx->paper_width;
1718                 rotate = !rotate;
1719         } else {
1720                 width = ctx->paper_width;
1721                 height = ctx->paper_height;
1722         }
1723
1724         if (ctx->pages_per_sheet == 2 || ctx->pages_per_sheet == 6) {
1725                 rotate = !rotate;
1726         }
1727
1728         if (rotate) {
1729                 gint tmp1;
1730                 gdouble tmp2;
1731
1732                 tmp1 = x;
1733                 x = y;
1734                 y = tmp1;
1735
1736                 tmp2 = page_width;
1737                 page_width = page_height;
1738                 page_height = tmp2;
1739         }
1740
1741         pwidth = width / ctx->pages_x;
1742         pheight = height / ctx->pages_y;
1743
1744         if ((page_width > pwidth || page_height > pheight) ||
1745             (page_width < pwidth && page_height < pheight)) {
1746                 xscale = pwidth / page_width;
1747                 yscale = pheight / page_height;
1748
1749                 if (yscale < xscale) {
1750                         xscale = yscale;
1751                 } else {
1752                         yscale = xscale;
1753                 }
1754
1755         } else {
1756                 xscale = yscale = 1;
1757         }
1758
1759         /* TODO: center */
1760
1761         cairo_save (ctx->cr);
1762         if (rotate) {
1763                 cairo_matrix_t matrix;
1764
1765                 cairo_translate (ctx->cr, (2 * y + 1) * pwidth, 0);
1766                 cairo_matrix_init (&matrix,
1767                                    0,  1,
1768                                    -1,  0,
1769                                    0,  0);
1770                 cairo_transform (ctx->cr, &matrix);
1771         }
1772
1773         cairo_translate (ctx->cr,
1774                          x * (rotate ? pheight : pwidth),
1775                          y * (rotate ? pwidth : pheight));
1776         cairo_scale (ctx->cr, xscale, yscale);
1777
1778         poppler_page_render_for_printing (poppler_page, ctx->cr);
1779
1780         ctx->pages_printed++;
1781
1782         cairo_restore (ctx->cr);
1783 #else /* HAVE_CAIRO_PRINT */
1784         if (ctx->format == EV_FILE_FORMAT_PS)
1785                 poppler_page_render_to_ps (poppler_page, ctx->ps_file);
1786 #endif /* HAVE_CAIRO_PRINT */
1787 }
1788
1789 static void
1790 pdf_document_file_exporter_end_page (EvFileExporter *exporter)
1791 {
1792         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1793         PdfPrintContext *ctx = pdf_document->print_ctx;
1794
1795         g_return_if_fail (pdf_document->print_ctx != NULL);
1796
1797 #ifdef HAVE_CAIRO_PRINT
1798         cairo_show_page (ctx->cr);
1799 #endif
1800 }
1801
1802 static void
1803 pdf_document_file_exporter_end (EvFileExporter *exporter)
1804 {
1805         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1806
1807         pdf_print_context_free (pdf_document->print_ctx);
1808         pdf_document->print_ctx = NULL;
1809 }
1810
1811 static EvFileExporterCapabilities
1812 pdf_document_file_exporter_get_capabilities (EvFileExporter *exporter)
1813 {
1814         return  (EvFileExporterCapabilities) (
1815                 EV_FILE_EXPORTER_CAN_PAGE_SET |
1816                 EV_FILE_EXPORTER_CAN_COPIES |
1817                 EV_FILE_EXPORTER_CAN_COLLATE |
1818                 EV_FILE_EXPORTER_CAN_REVERSE |
1819                 EV_FILE_EXPORTER_CAN_SCALE |
1820 #ifdef HAVE_CAIRO_PRINT
1821 #ifdef HAVE_POPPLER_PAGE_RENDER
1822                 EV_FILE_EXPORTER_CAN_NUMBER_UP |
1823 #endif
1824 #endif
1825
1826 #ifdef HAVE_CAIRO_PDF
1827 #ifdef HAVE_POPPLER_PAGE_RENDER
1828                 EV_FILE_EXPORTER_CAN_GENERATE_PDF |
1829 #endif
1830 #endif
1831                 EV_FILE_EXPORTER_CAN_GENERATE_PS);
1832 }
1833
1834 static void
1835 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
1836 {
1837         iface->begin = pdf_document_file_exporter_begin;
1838         iface->begin_page = pdf_document_file_exporter_begin_page;
1839         iface->do_page = pdf_document_file_exporter_do_page;
1840         iface->end_page = pdf_document_file_exporter_end_page;
1841         iface->end = pdf_document_file_exporter_end;
1842         iface->get_capabilities = pdf_document_file_exporter_get_capabilities;
1843 }
1844
1845 #ifdef HAVE_POPPLER_PAGE_RENDER
1846 /* EvDocumentPrint */
1847 static void
1848 pdf_document_print_print_page (EvDocumentPrint *document,
1849                                EvPage          *page,
1850                                cairo_t         *cr)
1851 {
1852         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1853
1854         poppler_page_render_for_printing (POPPLER_PAGE (page->backend_page), cr);
1855 }
1856
1857 static void
1858 pdf_document_document_print_iface_init (EvDocumentPrintIface *iface)
1859 {
1860         iface->print_page = pdf_document_print_print_page;
1861 }
1862 #endif /* HAVE_POPPLER_PAGE_RENDER */
1863
1864 static void
1865 pdf_selection_render_selection (EvSelection      *selection,
1866                                 EvRenderContext  *rc,
1867                                 cairo_surface_t **surface,
1868                                 EvRectangle      *points,
1869                                 EvRectangle      *old_points,
1870                                 EvSelectionStyle  style,
1871                                 GdkColor         *text,
1872                                 GdkColor         *base)
1873 {
1874         PopplerPage *poppler_page;
1875         double width_points, height_points;
1876         gint width, height;
1877
1878         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1879
1880         poppler_page_get_size (poppler_page,
1881                                &width_points, &height_points);
1882         width = (int) ((width_points * rc->scale) + 0.5);
1883         height = (int) ((height_points * rc->scale) + 0.5);
1884
1885 #ifdef HAVE_POPPLER_PAGE_RENDER
1886         cairo_t *cr;
1887         PopplerColor text_color, base_color;
1888
1889         text_color.red = text->red;
1890         text_color.green = text->green;
1891         text_color.blue = text->blue;
1892
1893         base_color.red = base->red;
1894         base_color.green = base->green;
1895         base_color.blue = base->blue;
1896
1897         if (*surface == NULL) {
1898                 *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
1899                                                        width, height);
1900
1901         }
1902
1903         cr = cairo_create (*surface);
1904         cairo_scale (cr, rc->scale, rc->scale);
1905         cairo_surface_set_device_offset (*surface, 0, 0);
1906         memset (cairo_image_surface_get_data (*surface), 0x00,
1907                 cairo_image_surface_get_height (*surface) *
1908                 cairo_image_surface_get_stride (*surface));
1909         poppler_page_render_selection (poppler_page,
1910                                        cr,
1911                                        (PopplerRectangle *)points,
1912                                        (PopplerRectangle *)old_points,
1913                                        (PopplerSelectionStyle)style,
1914                                        &text_color,
1915                                        &base_color);
1916         cairo_destroy (cr);
1917 #else /* HAVE_POPPLER_PAGE_RENDER */
1918         GdkPixbuf *pixbuf;
1919
1920         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1921                                  TRUE, 8,
1922                                  width, height);
1923
1924         poppler_page_render_selection_to_pixbuf (poppler_page,
1925                                                  rc->scale, rc->rotation, pixbuf,
1926                                                  (PopplerRectangle *)points,
1927                                                  (PopplerRectangle *)old_points,
1928                                                  (PopplerSelectionStyle)style,
1929                                                  text,
1930                                                  base);
1931         if (*surface)
1932                 cairo_surface_destroy (*surface);
1933         *surface = ev_document_misc_surface_from_pixbuf (pixbuf);
1934         g_object_unref (pixbuf);
1935 #endif /* HAVE_POPPLER_PAGE_RENDER */
1936 }
1937
1938 static gchar *
1939 pdf_selection_get_selected_text (EvSelection     *selection,
1940                                  EvRenderContext *rc,
1941                                  EvSelectionStyle style,
1942                                  EvRectangle     *points)
1943 {
1944         PopplerPage *poppler_page;
1945         PopplerRectangle r;
1946         double height;
1947         char *retval;
1948
1949         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1950
1951         poppler_page_get_size (poppler_page, NULL, &height);
1952         r.x1 = points->x1;
1953         r.y1 = height - points->y2;
1954         r.x2 = points->x2;
1955         r.y2 = height - points->y1;
1956
1957         retval = poppler_page_get_text (poppler_page,
1958                                         (PopplerSelectionStyle)style,
1959                                         &r);
1960
1961         return retval;
1962 }
1963
1964 static GdkRegion *
1965 create_gdk_region_from_poppler_region (GList *region)
1966 {
1967         GList *l;
1968         GdkRegion *retval;
1969
1970         retval = gdk_region_new ();
1971
1972         for (l = region; l; l = g_list_next (l)) {
1973                 PopplerRectangle *rectangle;
1974                 GdkRectangle      rect;
1975
1976                 rectangle = (PopplerRectangle *)l->data;
1977
1978                 rect.x = (gint) rectangle->x1;
1979                 rect.y = (gint) rectangle->y1;
1980                 rect.width  = (gint) (rectangle->x2 - rectangle->x1);
1981                 rect.height = (gint) (rectangle->y2 - rectangle->y1);
1982                 gdk_region_union_with_rect (retval, &rect);
1983
1984                 poppler_rectangle_free (rectangle);
1985         }
1986
1987         return retval;
1988 }
1989
1990 static GdkRegion *
1991 pdf_selection_get_selection_region (EvSelection     *selection,
1992                                     EvRenderContext *rc,
1993                                     EvSelectionStyle style,
1994                                     EvRectangle     *points)
1995 {
1996         PopplerPage *poppler_page;
1997         GdkRegion   *retval;
1998         GList       *region;
1999
2000         poppler_page = POPPLER_PAGE (rc->page->backend_page);
2001
2002         region = poppler_page_get_selection_region (poppler_page,
2003                                                     rc->scale,
2004                                                     (PopplerSelectionStyle)style,
2005                                                     (PopplerRectangle *) points);
2006         retval = create_gdk_region_from_poppler_region (region);
2007         g_list_free (region);
2008
2009         return retval;
2010 }
2011
2012 static GdkRegion *
2013 pdf_selection_get_selection_map (EvSelection *selection,
2014                                  EvPage      *page)
2015 {
2016         PopplerPage *poppler_page;
2017         PopplerRectangle points;
2018         GList *region;
2019         GdkRegion *retval;
2020
2021         poppler_page = POPPLER_PAGE (page->backend_page);
2022
2023         points.x1 = 0.0;
2024         points.y1 = 0.0;
2025         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
2026
2027         region = poppler_page_get_selection_region (poppler_page, 1.0,
2028                                                     POPPLER_SELECTION_GLYPH,
2029                                                     &points);
2030         retval = create_gdk_region_from_poppler_region (region);
2031         g_list_free (region);
2032
2033         return retval;
2034 }
2035
2036 static void
2037 pdf_selection_iface_init (EvSelectionIface *iface)
2038 {
2039         iface->render_selection = pdf_selection_render_selection;
2040         iface->get_selected_text = pdf_selection_get_selected_text;
2041         iface->get_selection_region = pdf_selection_get_selection_region;
2042         iface->get_selection_map = pdf_selection_get_selection_map;
2043 }
2044
2045 /* Page Transitions */
2046 static gdouble
2047 pdf_document_get_page_duration (EvDocumentTransition *trans,
2048                                 gint                  page)
2049 {
2050         PdfDocument *pdf_document;
2051         PopplerPage *poppler_page;
2052         gdouble      duration = -1;
2053
2054         pdf_document = PDF_DOCUMENT (trans);
2055         poppler_page = poppler_document_get_page (pdf_document->document, page);
2056         if (!poppler_page)
2057                 return -1;
2058
2059         duration = poppler_page_get_duration (poppler_page);
2060         g_object_unref (poppler_page);
2061
2062         return duration;
2063 }
2064
2065 static EvTransitionEffect *
2066 pdf_document_get_effect (EvDocumentTransition *trans,
2067                          gint                  page)
2068 {
2069         PdfDocument            *pdf_document;
2070         PopplerPage            *poppler_page;
2071         PopplerPageTransition  *page_transition;
2072         EvTransitionEffect     *effect;
2073
2074         pdf_document = PDF_DOCUMENT (trans);
2075         poppler_page = poppler_document_get_page (pdf_document->document, page);
2076
2077         if (!poppler_page)
2078                 return NULL;
2079
2080         page_transition = poppler_page_get_transition (poppler_page);
2081
2082         if (!page_transition) {
2083                 g_object_unref (poppler_page);
2084                 return NULL;
2085         }
2086
2087         /* enums in PopplerPageTransition match the EvTransitionEffect ones */
2088         effect = ev_transition_effect_new ((EvTransitionEffectType) page_transition->type,
2089                                            "alignment", page_transition->alignment,
2090                                            "direction", page_transition->direction,
2091                                            "duration", page_transition->duration,
2092                                            "angle", page_transition->angle,
2093                                            "scale", page_transition->scale,
2094                                            "rectangular", page_transition->rectangular,
2095                                            NULL);
2096
2097         poppler_page_transition_free (page_transition);
2098         g_object_unref (poppler_page);
2099
2100         return effect;
2101 }
2102
2103 static void
2104 pdf_document_page_transition_iface_init (EvDocumentTransitionIface *iface)
2105 {
2106         iface->get_page_duration = pdf_document_get_page_duration;
2107         iface->get_effect = pdf_document_get_effect;
2108 }
2109
2110 /* Forms */
2111 static void
2112 pdf_document_get_crop_box (EvDocument  *document,
2113                            int          page,
2114                            EvRectangle *rect)
2115 {
2116         PdfDocument *pdf_document;
2117         PopplerPage *poppler_page;
2118         PopplerRectangle poppler_rect;
2119
2120         pdf_document = PDF_DOCUMENT (document);
2121         poppler_page = poppler_document_get_page (pdf_document->document, page);
2122         poppler_page_get_crop_box (poppler_page, &poppler_rect);
2123         rect->x1 = poppler_rect.x1;
2124         rect->x2 = poppler_rect.x2;
2125         rect->y1 = poppler_rect.y1;
2126         rect->y2 = poppler_rect.y2;
2127 }
2128
2129 static EvFormField *
2130 ev_form_field_from_poppler_field (PopplerFormField *poppler_field)
2131 {
2132         EvFormField *ev_field = NULL;
2133         gint         id;
2134         gdouble      font_size;
2135         gboolean     is_read_only;
2136
2137         id = poppler_form_field_get_id (poppler_field);
2138         font_size = poppler_form_field_get_font_size (poppler_field);
2139         is_read_only = poppler_form_field_is_read_only (poppler_field);
2140
2141         switch (poppler_form_field_get_field_type (poppler_field)) {
2142                 case POPPLER_FORM_FIELD_TEXT: {
2143                         EvFormFieldText    *field_text;
2144                         EvFormFieldTextType ev_text_type = EV_FORM_FIELD_TEXT_NORMAL;
2145
2146                         switch (poppler_form_field_text_get_text_type (poppler_field)) {
2147                                 case POPPLER_FORM_TEXT_NORMAL:
2148                                         ev_text_type = EV_FORM_FIELD_TEXT_NORMAL;
2149                                         break;
2150                                 case POPPLER_FORM_TEXT_MULTILINE:
2151                                         ev_text_type = EV_FORM_FIELD_TEXT_MULTILINE;
2152                                         break;
2153                                 case POPPLER_FORM_TEXT_FILE_SELECT:
2154                                         ev_text_type = EV_FORM_FIELD_TEXT_FILE_SELECT;
2155                                         break;
2156                         }
2157
2158                         ev_field = ev_form_field_text_new (id, ev_text_type);
2159                         field_text = EV_FORM_FIELD_TEXT (ev_field);
2160
2161                         field_text->do_spell_check = poppler_form_field_text_do_spell_check (poppler_field);
2162                         field_text->do_scroll = poppler_form_field_text_do_scroll (poppler_field);
2163                         field_text->is_rich_text = poppler_form_field_text_is_rich_text (poppler_field);
2164                         field_text->is_password = poppler_form_field_text_is_password (poppler_field);
2165                         field_text->max_len = poppler_form_field_text_get_max_len (poppler_field);
2166                         field_text->text = poppler_form_field_text_get_text (poppler_field);
2167
2168                 }
2169                         break;
2170                 case POPPLER_FORM_FIELD_BUTTON: {
2171                         EvFormFieldButton    *field_button;
2172                         EvFormFieldButtonType ev_button_type = EV_FORM_FIELD_BUTTON_PUSH;
2173
2174                         switch (poppler_form_field_button_get_button_type (poppler_field)) {
2175                                 case POPPLER_FORM_BUTTON_PUSH:
2176                                         ev_button_type = EV_FORM_FIELD_BUTTON_PUSH;
2177                                         break;
2178                                 case POPPLER_FORM_BUTTON_CHECK:
2179                                         ev_button_type = EV_FORM_FIELD_BUTTON_CHECK;
2180                                         break;
2181                                 case POPPLER_FORM_BUTTON_RADIO:
2182                                         ev_button_type = EV_FORM_FIELD_BUTTON_RADIO;
2183                                         break;
2184                         }
2185
2186                         ev_field = ev_form_field_button_new (id, ev_button_type);
2187                         field_button = EV_FORM_FIELD_BUTTON (ev_field);
2188
2189                         field_button->state = poppler_form_field_button_get_state (poppler_field);
2190                 }
2191                         break;
2192                 case POPPLER_FORM_FIELD_CHOICE: {
2193                         EvFormFieldChoice    *field_choice;
2194                         EvFormFieldChoiceType ev_choice_type = EV_FORM_FIELD_CHOICE_COMBO;
2195
2196                         switch (poppler_form_field_choice_get_choice_type (poppler_field)) {
2197                                 case POPPLER_FORM_CHOICE_COMBO:
2198                                         ev_choice_type = EV_FORM_FIELD_CHOICE_COMBO;
2199                                         break;
2200                                 case EV_FORM_FIELD_CHOICE_LIST:
2201                                         ev_choice_type = EV_FORM_FIELD_CHOICE_LIST;
2202                                         break;
2203                         }
2204
2205                         ev_field = ev_form_field_choice_new (id, ev_choice_type);
2206                         field_choice = EV_FORM_FIELD_CHOICE (ev_field);
2207
2208                         field_choice->is_editable = poppler_form_field_choice_is_editable (poppler_field);
2209                         field_choice->multi_select = poppler_form_field_choice_can_select_multiple (poppler_field);
2210                         field_choice->do_spell_check = poppler_form_field_choice_do_spell_check (poppler_field);
2211                         field_choice->commit_on_sel_change = poppler_form_field_choice_commit_on_change (poppler_field);
2212
2213                         /* TODO: we need poppler_form_field_choice_get_selected_items in poppler
2214                         field_choice->selected_items = poppler_form_field_choice_get_selected_items (poppler_field);*/
2215                         if (field_choice->is_editable)
2216                                 field_choice->text = poppler_form_field_choice_get_text (poppler_field);
2217                 }
2218                         break;
2219                 case POPPLER_FORM_FIELD_SIGNATURE:
2220                         /* TODO */
2221                         ev_field = ev_form_field_signature_new (id);
2222                         break;
2223                 case POPPLER_FORM_FIELD_UNKNOWN:
2224                         return NULL;
2225         }
2226
2227         ev_field->font_size = font_size;
2228         ev_field->is_read_only = is_read_only;
2229
2230         return ev_field;
2231 }
2232
2233 static GList *
2234 pdf_document_forms_get_form_fields (EvDocumentForms *document,
2235                                     EvPage          *page)
2236 {
2237         PopplerPage *poppler_page;
2238         GList *retval = NULL;
2239         GList *fields;
2240         GList *list;
2241         double height;
2242
2243         g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
2244
2245         poppler_page = POPPLER_PAGE (page->backend_page);
2246         fields = poppler_page_get_form_field_mapping (poppler_page);
2247         poppler_page_get_size (poppler_page, NULL, &height);
2248
2249         for (list = fields; list; list = list->next) {
2250                 PopplerFormFieldMapping *mapping;
2251                 EvMapping *field_mapping;
2252                 EvFormField *ev_field;
2253
2254                 mapping = (PopplerFormFieldMapping *)list->data;
2255
2256                 ev_field = ev_form_field_from_poppler_field (mapping->field);
2257                 if (!ev_field)
2258                         continue;
2259
2260                 field_mapping = g_new0 (EvMapping, 1);
2261                 field_mapping->area.x1 = mapping->area.x1;
2262                 field_mapping->area.x2 = mapping->area.x2;
2263                 field_mapping->area.y1 = height - mapping->area.y2;
2264                 field_mapping->area.y2 = height - mapping->area.y1;
2265                 field_mapping->data = ev_field;
2266                 ev_field->page = EV_PAGE (g_object_ref (page));
2267
2268                 g_object_set_data_full (G_OBJECT (ev_field),
2269                                         "poppler-field",
2270                                         g_object_ref (mapping->field),
2271                                         (GDestroyNotify) g_object_unref);
2272
2273                 retval = g_list_prepend (retval, field_mapping);
2274         }
2275
2276         poppler_page_free_form_field_mapping (fields);
2277
2278         return g_list_reverse (retval);
2279 }
2280
2281 static gchar *
2282 pdf_document_forms_form_field_text_get_text (EvDocumentForms *document,
2283                                              EvFormField     *field)
2284
2285 {
2286         PopplerFormField *poppler_field;
2287         gchar *text;
2288
2289         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2290         if (!poppler_field)
2291                 return NULL;
2292
2293         text = poppler_form_field_text_get_text (poppler_field);
2294
2295         return text;
2296 }
2297
2298 static void
2299 pdf_document_forms_form_field_text_set_text (EvDocumentForms *document,
2300                                              EvFormField     *field,
2301                                              const gchar     *text)
2302 {
2303         PopplerFormField *poppler_field;
2304
2305         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2306         if (!poppler_field)
2307                 return;
2308
2309         poppler_form_field_text_set_text (poppler_field, text);
2310         PDF_DOCUMENT (document)->modified = TRUE;
2311 }
2312
2313 static void
2314 pdf_document_forms_form_field_button_set_state (EvDocumentForms *document,
2315                                                 EvFormField     *field,
2316                                                 gboolean         state)
2317 {
2318         PopplerFormField *poppler_field;
2319
2320         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2321         if (!poppler_field)
2322                 return;
2323
2324         poppler_form_field_button_set_state (poppler_field, state);
2325         PDF_DOCUMENT (document)->modified = TRUE;
2326 }
2327
2328 static gboolean
2329 pdf_document_forms_form_field_button_get_state (EvDocumentForms *document,
2330                                                 EvFormField     *field)
2331 {
2332         PopplerFormField *poppler_field;
2333         gboolean state;
2334
2335         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2336         if (!poppler_field)
2337                 return FALSE;
2338
2339         state = poppler_form_field_button_get_state (poppler_field);
2340
2341         return state;
2342 }
2343
2344 static gchar *
2345 pdf_document_forms_form_field_choice_get_item (EvDocumentForms *document,
2346                                                EvFormField     *field,
2347                                                gint             index)
2348 {
2349         PopplerFormField *poppler_field;
2350         gchar *text;
2351
2352         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2353         if (!poppler_field)
2354                 return NULL;
2355
2356         text = poppler_form_field_choice_get_item (poppler_field, index);
2357
2358         return text;
2359 }
2360
2361 static int
2362 pdf_document_forms_form_field_choice_get_n_items (EvDocumentForms *document,
2363                                                   EvFormField     *field)
2364 {
2365         PopplerFormField *poppler_field;
2366         gint n_items;
2367
2368         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2369         if (!poppler_field)
2370                 return -1;
2371
2372         n_items = poppler_form_field_choice_get_n_items (poppler_field);
2373
2374         return n_items;
2375 }
2376
2377 static gboolean
2378 pdf_document_forms_form_field_choice_is_item_selected (EvDocumentForms *document,
2379                                                        EvFormField     *field,
2380                                                        gint             index)
2381 {
2382         PopplerFormField *poppler_field;
2383         gboolean selected;
2384
2385         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2386         if (!poppler_field)
2387                 return FALSE;
2388
2389         selected = poppler_form_field_choice_is_item_selected (poppler_field, index);
2390
2391         return selected;
2392 }
2393
2394 static void
2395 pdf_document_forms_form_field_choice_select_item (EvDocumentForms *document,
2396                                                   EvFormField     *field,
2397                                                   gint             index)
2398 {
2399         PopplerFormField *poppler_field;
2400
2401         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2402         if (!poppler_field)
2403                 return;
2404
2405         poppler_form_field_choice_select_item (poppler_field, index);
2406         PDF_DOCUMENT (document)->modified = TRUE;
2407 }
2408
2409 static void
2410 pdf_document_forms_form_field_choice_toggle_item (EvDocumentForms *document,
2411                                                   EvFormField     *field,
2412                                                   gint             index)
2413 {
2414         PopplerFormField *poppler_field;
2415
2416         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2417         if (!poppler_field)
2418                 return;
2419
2420         poppler_form_field_choice_toggle_item (poppler_field, index);
2421         PDF_DOCUMENT (document)->modified = TRUE;
2422 }
2423
2424 static void
2425 pdf_document_forms_form_field_choice_unselect_all (EvDocumentForms *document,
2426                                                    EvFormField     *field)
2427 {
2428         PopplerFormField *poppler_field;
2429
2430         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2431         if (!poppler_field)
2432                 return;
2433
2434         poppler_form_field_choice_unselect_all (poppler_field);
2435         PDF_DOCUMENT (document)->modified = TRUE;
2436 }
2437
2438 static void
2439 pdf_document_forms_form_field_choice_set_text (EvDocumentForms *document,
2440                                                EvFormField     *field,
2441                                                const gchar     *text)
2442 {
2443         PopplerFormField *poppler_field;
2444
2445         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2446         if (!poppler_field)
2447                 return;
2448
2449         poppler_form_field_choice_set_text (poppler_field, text);
2450         PDF_DOCUMENT (document)->modified = TRUE;
2451 }
2452
2453 static gchar *
2454 pdf_document_forms_form_field_choice_get_text (EvDocumentForms *document,
2455                                                EvFormField     *field)
2456 {
2457         PopplerFormField *poppler_field;
2458         gchar *text;
2459
2460         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2461         if (!poppler_field)
2462                 return NULL;
2463
2464         text = poppler_form_field_choice_get_text (poppler_field);
2465
2466         return text;
2467 }
2468
2469 static void
2470 pdf_document_document_forms_iface_init (EvDocumentFormsIface *iface)
2471 {
2472         iface->get_form_fields = pdf_document_forms_get_form_fields;
2473         iface->form_field_text_get_text = pdf_document_forms_form_field_text_get_text;
2474         iface->form_field_text_set_text = pdf_document_forms_form_field_text_set_text;
2475         iface->form_field_button_set_state = pdf_document_forms_form_field_button_set_state;
2476         iface->form_field_button_get_state = pdf_document_forms_form_field_button_get_state;
2477         iface->form_field_choice_get_item = pdf_document_forms_form_field_choice_get_item;
2478         iface->form_field_choice_get_n_items = pdf_document_forms_form_field_choice_get_n_items;
2479         iface->form_field_choice_is_item_selected = pdf_document_forms_form_field_choice_is_item_selected;
2480         iface->form_field_choice_select_item = pdf_document_forms_form_field_choice_select_item;
2481         iface->form_field_choice_toggle_item = pdf_document_forms_form_field_choice_toggle_item;
2482         iface->form_field_choice_unselect_all = pdf_document_forms_form_field_choice_unselect_all;
2483         iface->form_field_choice_set_text = pdf_document_forms_form_field_choice_set_text;
2484         iface->form_field_choice_get_text = pdf_document_forms_form_field_choice_get_text;
2485 }
2486
2487 /* Annotations */
2488 static void
2489 poppler_annot_color_to_gdk_color (PopplerAnnot *poppler_annot,
2490                                   GdkColor     *color)
2491 {
2492         PopplerColor *poppler_color;
2493
2494         poppler_color = poppler_annot_get_color (poppler_annot);
2495         if (poppler_color) {
2496                 color->red = poppler_color->red;
2497                 color->green = poppler_color->green;
2498                 color->blue = poppler_color->blue;
2499
2500                 g_free (poppler_color);
2501         } /* TODO: else use a default color */
2502 }
2503
2504 static EvAnnotation *
2505 ev_annot_from_poppler_annot (PopplerAnnot *poppler_annot,
2506                              EvPage       *page)
2507 {
2508         EvAnnotation *ev_annot = NULL;
2509         const gchar  *unimplemented_annot = NULL;
2510
2511         switch (poppler_annot_get_annot_type (poppler_annot)) {
2512                 case POPPLER_ANNOT_TEXT: {
2513                         PopplerAnnotText *poppler_text;
2514                         EvAnnotationText *ev_annot_text;
2515
2516                         poppler_text = POPPLER_ANNOT_TEXT (poppler_annot);
2517
2518                         ev_annot = ev_annotation_text_new (page);
2519
2520                         ev_annot_text = EV_ANNOTATION_TEXT (ev_annot);
2521                         ev_annot_text->is_open = poppler_annot_text_get_is_open (poppler_text);
2522                 }
2523                         break;
2524 #ifdef HAVE_POPPLER_ANNOT_FILE_ATTACHMENT_GET_ATTACHMENT
2525                 case POPPLER_ANNOT_FILE_ATTACHMENT: {
2526                         PopplerAnnotFileAttachment *poppler_annot_attachment;
2527                         EvAnnotationAttachment     *ev_annot_attachment;
2528                         PopplerAttachment          *poppler_attachment;
2529                         gchar                      *data = NULL;
2530                         gsize                       size;
2531                         GError                     *error = NULL;
2532
2533                         poppler_annot_attachment = POPPLER_ANNOT_FILE_ATTACHMENT (poppler_annot);
2534                         poppler_attachment = poppler_annot_file_attachment_get_attachment (poppler_annot_attachment);
2535
2536                         if (poppler_attachment &&
2537                             attachment_save_to_buffer (poppler_attachment, &data, &size, &error)) {
2538                                 EvAttachment *ev_attachment;
2539
2540                                 ev_attachment = ev_attachment_new (poppler_attachment->name,
2541                                                                    poppler_attachment->description,
2542                                                                    poppler_attachment->mtime,
2543                                                                    poppler_attachment->ctime,
2544                                                                    size, data);
2545                                 ev_annot = ev_annotation_attachment_new (page, ev_attachment);
2546                                 g_object_unref (ev_attachment);
2547                         } else if (error) {
2548                                 g_warning ("%s", error->message);
2549                                 g_error_free (error);
2550                         }
2551
2552                         if (poppler_attachment)
2553                                 g_object_unref (poppler_attachment);
2554                 }
2555                         break;
2556 #endif /* HAVE_POPPLER_ANNOT_FILE_ATTACHMENT_GET_ATTACHMENT */
2557                 case POPPLER_ANNOT_LINK:
2558                 case POPPLER_ANNOT_WIDGET:
2559                         /* Ignore link and widgets annots since they are already handled */
2560                         break;
2561                 default: {
2562                         GEnumValue *enum_value;
2563
2564                         enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_ANNOT_TYPE),
2565                                                        poppler_annot_get_annot_type (poppler_annot));
2566                         unimplemented_annot = enum_value ? enum_value->value_name : "Unknown annotation";
2567                 }
2568         }
2569
2570         if (unimplemented_annot) {
2571                 g_warning ("Unimplemented annotation: %s, please post a "
2572                            "bug report in Evince bugzilla "
2573                            "(http://bugzilla.gnome.org) with a testcase.",
2574                            unimplemented_annot);
2575         }
2576
2577         if (ev_annot) {
2578                 ev_annot->contents = poppler_annot_get_contents (poppler_annot);
2579                 ev_annot->name = poppler_annot_get_name (poppler_annot);
2580                 ev_annot->modified = poppler_annot_get_modified (poppler_annot);
2581                 poppler_annot_color_to_gdk_color (poppler_annot, &ev_annot->color);
2582
2583                 if (POPPLER_IS_ANNOT_MARKUP (poppler_annot)) {
2584                         PopplerAnnotMarkup *markup;
2585                         gchar *label;
2586                         gdouble opacity;
2587                         PopplerRectangle poppler_rect;
2588
2589                         markup = POPPLER_ANNOT_MARKUP (poppler_annot);
2590
2591                         if (poppler_annot_markup_get_popup_rectangle (markup, &poppler_rect)) {
2592                                 EvRectangle ev_rect;
2593                                 gboolean is_open;
2594                                 gdouble height;
2595
2596                                 poppler_page_get_size (POPPLER_PAGE (page->backend_page),
2597                                                        NULL, &height);
2598                                 ev_rect.x1 = poppler_rect.x1;
2599                                 ev_rect.x2 = poppler_rect.x2;
2600                                 ev_rect.y1 = height - poppler_rect.y2;
2601                                 ev_rect.y2 = height - poppler_rect.y1;
2602
2603                                 is_open = poppler_annot_markup_get_popup_is_open (markup);
2604
2605                                 g_object_set (ev_annot,
2606                                               "rectangle", &ev_rect,
2607                                               "is_open", is_open,
2608                                               "has_popup", TRUE,
2609                                               NULL);
2610                         } else {
2611                                 /* FIXME: Use poppler_annot_markup_has_popup() when
2612                                  * new poppler is released.
2613                                  */
2614                                 g_object_set (ev_annot,
2615                                               "has_popup", FALSE,
2616                                               NULL);
2617                         }
2618
2619                         label = poppler_annot_markup_get_label (markup);
2620                         opacity = poppler_annot_markup_get_opacity (markup);
2621
2622                         g_object_set (ev_annot,
2623                                       "label", label,
2624                                       "opacity", opacity,
2625                                       NULL);
2626
2627                         g_free (label);
2628                 }
2629         }
2630
2631         return ev_annot;
2632 }
2633
2634 static GList *
2635 pdf_document_annotations_get_annotations (EvDocumentAnnotations *document_annotations,
2636                                           EvPage                *page)
2637 {
2638         GList *retval = NULL;
2639         PdfDocument *pdf_document;
2640         PopplerPage *poppler_page;
2641         GList *annots;
2642         GList *list;
2643         gdouble height;
2644         gint i = 0;
2645
2646         pdf_document = PDF_DOCUMENT (document_annotations);
2647         poppler_page = POPPLER_PAGE (page->backend_page);
2648         annots = poppler_page_get_annot_mapping (poppler_page);
2649         poppler_page_get_size (poppler_page, NULL, &height);
2650
2651         for (list = annots; list; list = list->next) {
2652                 PopplerAnnotMapping *mapping;
2653                 EvMapping *annot_mapping;
2654                 EvAnnotation        *ev_annot;
2655
2656                 mapping = (PopplerAnnotMapping *)list->data;
2657
2658                 ev_annot = ev_annot_from_poppler_annot (mapping->annot, page);
2659                 if (!ev_annot)
2660                         continue;
2661
2662                 i++;
2663
2664                 /* Make sure annot has a unique name */
2665                 if (!ev_annot->name)
2666                         ev_annot->name = g_strdup_printf ("annot-%d-%d", page->index, i);
2667
2668                 annot_mapping = g_new (EvMapping, 1);
2669                 annot_mapping->area.x1 = mapping->area.x1;
2670                 annot_mapping->area.x2 = mapping->area.x2;
2671                 annot_mapping->area.y1 = height - mapping->area.y2;
2672                 annot_mapping->area.y2 = height - mapping->area.y1;
2673                 annot_mapping->data = ev_annot;
2674
2675                 g_object_set_data_full (G_OBJECT (ev_annot),
2676                                         "poppler-annot",
2677                                         g_object_ref (mapping->annot),
2678                                         (GDestroyNotify) g_object_unref);
2679
2680                 retval = g_list_prepend (retval, annot_mapping);
2681         }
2682
2683         poppler_page_free_annot_mapping (annots);
2684
2685         return g_list_reverse (retval);
2686 }
2687
2688 static void
2689 pdf_document_annotations_annotation_set_contents (EvDocumentAnnotations *document,
2690                                                   EvAnnotation          *annot,
2691                                                   const gchar           *contents)
2692 {
2693         PopplerAnnot *poppler_annot;
2694
2695         poppler_annot = POPPLER_ANNOT (g_object_get_data (G_OBJECT (annot), "poppler-annot"));
2696         if (!poppler_annot)
2697                 return;
2698
2699         poppler_annot_set_contents (poppler_annot, contents);
2700         PDF_DOCUMENT (document)->modified = TRUE;
2701 }
2702
2703 static void
2704 pdf_document_document_annotations_iface_init (EvDocumentAnnotationsIface *iface)
2705 {
2706         iface->get_annotations = pdf_document_annotations_get_annotations;
2707         iface->annotation_set_contents = pdf_document_annotations_annotation_set_contents;
2708 }
2709
2710 /* Attachments */
2711 struct SaveToBufferData {
2712         gchar *buffer;
2713         gsize len, max;
2714 };
2715
2716 static gboolean
2717 attachment_save_to_buffer_callback (const gchar  *buf,
2718                                     gsize         count,
2719                                     gpointer      user_data,
2720                                     GError      **error)
2721 {
2722         struct SaveToBufferData *sdata = (SaveToBufferData *)user_data;
2723         gchar *new_buffer;
2724         gsize new_max;
2725
2726         if (sdata->len + count > sdata->max) {
2727                 new_max = MAX (sdata->max * 2, sdata->len + count);
2728                 new_buffer = (gchar *)g_realloc (sdata->buffer, new_max);
2729
2730                 sdata->buffer = new_buffer;
2731                 sdata->max = new_max;
2732         }
2733
2734         memcpy (sdata->buffer + sdata->len, buf, count);
2735         sdata->len += count;
2736
2737         return TRUE;
2738 }
2739
2740 static gboolean
2741 attachment_save_to_buffer (PopplerAttachment  *attachment,
2742                            gchar             **buffer,
2743                            gsize              *buffer_size,
2744                            GError            **error)
2745 {
2746         static const gint initial_max = 1024;
2747         struct SaveToBufferData sdata;
2748
2749         *buffer = NULL;
2750         *buffer_size = 0;
2751
2752         sdata.buffer = (gchar *) g_malloc (initial_max);
2753         sdata.max = initial_max;
2754         sdata.len = 0;
2755
2756         if (! poppler_attachment_save_to_callback (attachment,
2757                                                    attachment_save_to_buffer_callback,
2758                                                    &sdata,
2759                                                    error)) {
2760                 g_free (sdata.buffer);
2761                 return FALSE;
2762         }
2763
2764         *buffer = sdata.buffer;
2765         *buffer_size = sdata.len;
2766
2767         return TRUE;
2768 }
2769
2770 static GList *
2771 pdf_document_attachments_get_attachments (EvDocumentAttachments *document)
2772 {
2773         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2774         GList *attachments;
2775         GList *list;
2776         GList *retval = NULL;
2777
2778         attachments = poppler_document_get_attachments (pdf_document->document);
2779
2780         for (list = attachments; list; list = list->next) {
2781                 PopplerAttachment *attachment;
2782                 EvAttachment *ev_attachment;
2783                 gchar *data = NULL;
2784                 gsize size;
2785                 GError *error = NULL;
2786
2787                 attachment = (PopplerAttachment *) list->data;
2788
2789                 if (attachment_save_to_buffer (attachment, &data, &size, &error)) {
2790                         ev_attachment = ev_attachment_new (attachment->name,
2791                                                            attachment->description,
2792                                                            attachment->mtime,
2793                                                            attachment->ctime,
2794                                                            size, data);
2795
2796                         retval = g_list_prepend (retval, ev_attachment);
2797                 } else {
2798                         if (error) {
2799                                 g_warning ("%s", error->message);
2800                                 g_error_free (error);
2801
2802                                 g_free (data);
2803                         }
2804                 }
2805
2806                 g_object_unref (attachment);
2807         }
2808
2809         return g_list_reverse (retval);
2810 }
2811
2812 static gboolean
2813 pdf_document_attachments_has_attachments (EvDocumentAttachments *document)
2814 {
2815         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2816
2817         return poppler_document_has_attachments (pdf_document->document);
2818 }
2819
2820 static void
2821 pdf_document_document_attachments_iface_init (EvDocumentAttachmentsIface *iface)
2822 {
2823         iface->has_attachments = pdf_document_attachments_has_attachments;
2824         iface->get_attachments = pdf_document_attachments_get_attachments;
2825 }
2826
2827 /* Layers */
2828 static gboolean
2829 pdf_document_layers_has_layers (EvDocumentLayers *document)
2830 {
2831         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2832         PopplerLayersIter *iter;
2833
2834         iter = poppler_layers_iter_new (pdf_document->document);
2835         if (!iter)
2836                 return FALSE;
2837         poppler_layers_iter_free (iter);
2838
2839         return TRUE;
2840 }
2841
2842 static void
2843 build_layers_tree (PdfDocument       *pdf_document,
2844                    GtkTreeModel      *model,
2845                    GtkTreeIter       *parent,
2846                    PopplerLayersIter *iter)
2847 {
2848         do {
2849                 GtkTreeIter        tree_iter;
2850                 PopplerLayersIter *child;
2851                 PopplerLayer      *layer;
2852                 EvLayer           *ev_layer = NULL;
2853                 gboolean           visible;
2854                 gchar             *markup;
2855                 gint               rb_group = 0;
2856
2857                 layer = poppler_layers_iter_get_layer (iter);
2858                 if (layer) {
2859                         markup = g_markup_escape_text (poppler_layer_get_title (layer), -1);
2860                         visible = poppler_layer_is_visible (layer);
2861                         rb_group = poppler_layer_get_radio_button_group_id (layer);
2862                         pdf_document->layers = g_list_append (pdf_document->layers,
2863                                                               g_object_ref (layer));
2864                         ev_layer = ev_layer_new (g_list_length (pdf_document->layers) - 1,
2865                                                  poppler_layer_is_parent (layer),
2866                                                  rb_group);
2867                 } else {
2868                         gchar *title;
2869
2870                         title = poppler_layers_iter_get_title (iter);
2871                         markup = g_markup_escape_text (title, -1);
2872                         g_free (title);
2873
2874                         visible = FALSE;
2875                         layer = NULL;
2876                 }
2877
2878                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
2879                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
2880                                     EV_DOCUMENT_LAYERS_COLUMN_TITLE, markup,
2881                                     EV_DOCUMENT_LAYERS_COLUMN_VISIBLE, visible,
2882                                     EV_DOCUMENT_LAYERS_COLUMN_ENABLED, TRUE, /* FIXME */
2883                                     EV_DOCUMENT_LAYERS_COLUMN_SHOWTOGGLE, (layer != NULL),
2884                                     EV_DOCUMENT_LAYERS_COLUMN_RBGROUP, rb_group,
2885                                     EV_DOCUMENT_LAYERS_COLUMN_LAYER, ev_layer,
2886                                     -1);
2887                 if (ev_layer)
2888                         g_object_unref (ev_layer);
2889                 g_free (markup);
2890
2891                 child = poppler_layers_iter_get_child (iter);
2892                 if (child)
2893                         build_layers_tree (pdf_document, model, &tree_iter, child);
2894                 poppler_layers_iter_free (child);
2895         } while (poppler_layers_iter_next (iter));
2896 }
2897
2898 static GtkTreeModel *
2899 pdf_document_layers_get_layers (EvDocumentLayers *document)
2900 {
2901         GtkTreeModel *model = NULL;
2902         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2903         PopplerLayersIter *iter;
2904
2905         iter = poppler_layers_iter_new (pdf_document->document);
2906         if (iter) {
2907                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LAYERS_N_COLUMNS,
2908                                                              G_TYPE_STRING,  /* TITLE */
2909                                                              G_TYPE_OBJECT,  /* LAYER */
2910                                                              G_TYPE_BOOLEAN, /* VISIBLE */
2911                                                              G_TYPE_BOOLEAN, /* ENABLED */
2912                                                              G_TYPE_BOOLEAN, /* SHOWTOGGLE */
2913                                                              G_TYPE_INT);    /* RBGROUP */
2914                 build_layers_tree (pdf_document, model, NULL, iter);
2915                 poppler_layers_iter_free (iter);
2916         }
2917         return model;
2918 }
2919
2920 static void
2921 pdf_document_layers_show_layer (EvDocumentLayers *document,
2922                                 EvLayer          *layer)
2923 {
2924         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2925         guint        layer_id = ev_layer_get_id (layer);
2926
2927         poppler_layer_show (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2928 }
2929
2930 static void
2931 pdf_document_layers_hide_layer (EvDocumentLayers *document,
2932                                 EvLayer          *layer)
2933 {
2934         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2935         guint        layer_id = ev_layer_get_id (layer);
2936
2937         poppler_layer_hide (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2938 }
2939
2940 static gboolean
2941 pdf_document_layers_layer_is_visible (EvDocumentLayers *document,
2942                                       EvLayer          *layer)
2943 {
2944         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2945         guint        layer_id = ev_layer_get_id (layer);
2946
2947         return poppler_layer_is_visible (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2948 }
2949
2950 static void
2951 pdf_document_document_layers_iface_init (EvDocumentLayersIface *iface)
2952 {
2953         iface->has_layers = pdf_document_layers_has_layers;
2954         iface->get_layers = pdf_document_layers_get_layers;
2955         iface->show_layer = pdf_document_layers_show_layer;
2956         iface->hide_layer = pdf_document_layers_hide_layer;
2957         iface->layer_is_visible = pdf_document_layers_layer_is_visible;
2958 }