X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=pdf%2Fev-poppler.cc;h=1599f2f24906ad9af5336f45514bb36e5d8757fe;hb=f47b89da690d2b954423b800dd106694f82f7587;hp=1dd27b70c4747830cf0131e9705c3fc6f619363c;hpb=03ad9a29cbe1a89dfc5e8b94a74f6f86c4cba076;p=evince.git diff --git a/pdf/ev-poppler.cc b/pdf/ev-poppler.cc index 1dd27b70..1599f2f2 100644 --- a/pdf/ev-poppler.cc +++ b/pdf/ev-poppler.cc @@ -17,6 +17,8 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include +#include #include #include #include @@ -37,6 +39,15 @@ enum { }; +typedef struct { + PdfDocument *document; + char *text; + GList **pages; + guint idle; + int start_page; + int search_page; +} PdfDocumentSearch; + struct _PdfDocumentClass { GObjectClass parent_class; @@ -47,15 +58,18 @@ struct _PdfDocument GObject parent_instance; PopplerDocument *document; - PopplerPage *page; - double scale; + PopplerPSFile *ps_file; gchar *password; + + PdfDocumentSearch *search; }; static void pdf_document_document_iface_init (EvDocumentIface *iface); static void pdf_document_security_iface_init (EvDocumentSecurityIface *iface); static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface); static void pdf_document_document_links_iface_init (EvDocumentLinksIface *iface); +static void pdf_document_find_iface_init (EvDocumentFindIface *iface); +static void pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface); static void pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails, gint page, gint size, @@ -74,19 +88,13 @@ G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT, pdf_document_document_thumbnails_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS, pdf_document_document_links_iface_init); -#if 0 - G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER, - pdf_document_ps_exporter_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND, pdf_document_find_iface_init); -#endif + G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER, + pdf_document_ps_exporter_iface_init); }); - - - - static void pdf_document_get_property (GObject *object, guint prop_id, @@ -119,8 +127,6 @@ pdf_document_class_init (PdfDocumentClass *klass) static void pdf_document_init (PdfDocument *pdf_document) { - pdf_document->page = NULL; - pdf_document->scale = 1.0; pdf_document->password = NULL; } @@ -194,85 +200,29 @@ pdf_document_get_n_pages (EvDocument *document) return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document); } -static void -pdf_document_set_page (EvDocument *document, - int page) -{ - page = CLAMP (page, 0, poppler_document_get_n_pages (PDF_DOCUMENT (document)->document) - 1); - - PDF_DOCUMENT (document)->page = poppler_document_get_page (PDF_DOCUMENT (document)->document, page); -} - -static int -pdf_document_get_page (EvDocument *document) -{ - PdfDocument *pdf_document; - - pdf_document = PDF_DOCUMENT (document); - - if (pdf_document->page) - return poppler_page_get_index (pdf_document->page); - - return 1; -} - -static void -pdf_document_set_scale (EvDocument *document, - double scale) -{ - PDF_DOCUMENT (document)->scale = scale; -} - - -static void -get_size_from_page (PopplerPage *poppler_page, - double scale, - int *width, - int *height) -{ - gdouble width_d, height_d; - poppler_page_get_size (poppler_page, &width_d, &height_d); - if (width) - *width = (int) (width_d * scale); - if (height) - *height = (int) (height_d * scale); - -} - static void pdf_document_get_page_size (EvDocument *document, int page, - int *width, - int *height) + double *width, + double *height) { - PopplerPage *poppler_page = NULL; - - if (page == -1) - poppler_page = PDF_DOCUMENT (document)->page; - else - poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document, - page); + PopplerPage *poppler_page; - if (poppler_page == NULL) - poppler_document_get_page (PDF_DOCUMENT (document)->document, 0); + poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document, + page); - get_size_from_page (poppler_page, - PDF_DOCUMENT (document)->scale, - width, height); + poppler_page_get_size (poppler_page, width, height); } static char * pdf_document_get_page_label (EvDocument *document, int page) { - PopplerPage *poppler_page = NULL; + PopplerPage *poppler_page; char *label = NULL; - if (page == -1) - poppler_page = PDF_DOCUMENT (document)->page; - else - poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document, - page); + poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document, + page); g_object_get (poppler_page, "label", &label, @@ -282,19 +232,21 @@ pdf_document_get_page_label (EvDocument *document, } static GList * -pdf_document_get_links (EvDocument *document) +pdf_document_get_links (EvDocument *document, + int page) { PdfDocument *pdf_document; + PopplerPage *poppler_page; GList *retval = NULL; GList *mapping_list; GList *list; - gint height; + double height; pdf_document = PDF_DOCUMENT (document); - g_return_val_if_fail (pdf_document->page != NULL, NULL); - - mapping_list = poppler_page_get_link_mapping (pdf_document->page); - get_size_from_page (pdf_document->page, 1.0, NULL, &height); + poppler_page = poppler_document_get_page (pdf_document->document, + page); + mapping_list = poppler_page_get_link_mapping (poppler_page); + poppler_page_get_size (poppler_page, NULL, &height); for (list = mapping_list; list; list = list->next) { PopplerLinkMapping *link_mapping; @@ -303,11 +255,11 @@ pdf_document_get_links (EvDocument *document) link_mapping = (PopplerLinkMapping *)list->data; ev_link_mapping = g_new (EvLinkMapping, 1); ev_link_mapping->link = ev_link_from_action (link_mapping->action); - ev_link_mapping->x1 = link_mapping->x1; - ev_link_mapping->x2 = link_mapping->x2; + ev_link_mapping->x1 = link_mapping->area.x1; + ev_link_mapping->x2 = link_mapping->area.x2; /* Invert this for X-style coordinates */ - ev_link_mapping->y1 = height - link_mapping->y2; - ev_link_mapping->y2 = height - link_mapping->y1; + ev_link_mapping->y1 = height - link_mapping->area.y2; + ev_link_mapping->y2 = height - link_mapping->area.y1; retval = g_list_prepend (retval, ev_link_mapping); } @@ -319,27 +271,32 @@ pdf_document_get_links (EvDocument *document) static GdkPixbuf * -pdf_document_render_pixbuf (EvDocument *document) +pdf_document_render_pixbuf (EvDocument *document, + int page, + double scale) { PdfDocument *pdf_document; + PopplerPage *poppler_page; GdkPixbuf *pixbuf; + double width_points, height_points; gint width, height; pdf_document = PDF_DOCUMENT (document); - g_return_val_if_fail (pdf_document->page != NULL, NULL); + poppler_page = poppler_document_get_page (pdf_document->document, + page); - get_size_from_page (pdf_document->page, - pdf_document->scale, - &width, &height); + poppler_page_get_size (poppler_page, &width_points, &height_points); + width = (int) ceil (width_points * scale); + height = (int) ceil (height_points * scale); pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, width, height); - poppler_page_render_to_pixbuf (pdf_document->page, + poppler_page_render_to_pixbuf (poppler_page, 0, 0, width, height, - pdf_document->scale, + scale, pixbuf, 0, 0); @@ -367,7 +324,31 @@ pdf_document_set_password (EvDocumentSecurity *document_security, document->password = g_strdup (password); } +static gboolean +pdf_document_can_get_text (EvDocument *document) +{ + return TRUE; +} +static char * +pdf_document_get_text (EvDocument *document, int page, EvRectangle *rect) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document); + PopplerPage *poppler_page; + PopplerRectangle r; + double height; + + poppler_page = poppler_document_get_page (pdf_document->document, page); + g_return_val_if_fail (poppler_page != NULL, NULL); + + poppler_page_get_size (poppler_page, NULL, &height); + r.x1 = rect->x1; + r.y1 = height - rect->y2; + r.x2 = rect->x2; + r.y2 = height - rect->y1; + + return poppler_page_get_text (poppler_page, &r); +} static void pdf_document_document_iface_init (EvDocumentIface *iface) @@ -375,13 +356,12 @@ pdf_document_document_iface_init (EvDocumentIface *iface) iface->save = pdf_document_save; iface->load = pdf_document_load; iface->get_n_pages = pdf_document_get_n_pages; - iface->set_page = pdf_document_set_page; - iface->get_page = pdf_document_get_page; - iface->set_scale = pdf_document_set_scale; iface->get_page_size = pdf_document_get_page_size; iface->get_page_label = pdf_document_get_page_label; iface->get_links = pdf_document_get_links; iface->render_pixbuf = pdf_document_render_pixbuf; + iface->get_text = pdf_document_get_text; + iface->can_get_text = pdf_document_can_get_text; }; static void @@ -585,10 +565,9 @@ pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnail has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height); if (!has_thumb) { - int page_width, page_height; - - get_size_from_page (poppler_page, 1.0, &page_width, &page_height); + double page_width, page_height; + poppler_page_get_size (poppler_page, &page_width, &page_height); if (page_width > page_height) { *width = size; *height = (int) (size * page_height / page_width); @@ -606,6 +585,263 @@ pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface) iface->get_dimensions = pdf_document_thumbnails_get_dimensions; } + +static gboolean +pdf_document_search_idle_callback (void *data) +{ + PdfDocumentSearch *search = (PdfDocumentSearch*) data; + PdfDocument *pdf_document = search->document; + int n_pages, changed_page; + GList *matches; + PopplerPage *page; + + page = poppler_document_get_page (search->document->document, + search->search_page); + + g_mutex_lock (EV_DOC_MUTEX); + matches = poppler_page_find_text (page, search->text); + g_mutex_unlock (EV_DOC_MUTEX); + + search->pages[search->search_page] = matches; + n_pages = pdf_document_get_n_pages (EV_DOCUMENT (search->document)); + + changed_page = search->search_page; + search->search_page += 1; + if (search->search_page == n_pages) { + /* wrap around */ + search->search_page = 0; + } + + if (search->search_page != search->start_page) { + ev_document_find_changed (EV_DOCUMENT_FIND (pdf_document), + changed_page); + return TRUE; + } + + /* We're done. */ + search->idle = 0; /* will return FALSE to remove */ + return FALSE; +} + + +static PdfDocumentSearch * +pdf_document_search_new (PdfDocument *pdf_document, + int start_page, + const char *text) +{ + PdfDocumentSearch *search; + int n_pages; + int i; + + n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document)); + + search = g_new0 (PdfDocumentSearch, 1); + + search->text = g_strdup (text); + search->pages = g_new0 (GList *, n_pages); + for (i = 0; i < n_pages; i++) { + search->pages[i] = NULL; + } + + search->document = pdf_document; + + /* We add at low priority so the progress bar repaints */ + search->idle = g_idle_add_full (G_PRIORITY_LOW, + pdf_document_search_idle_callback, + search, + NULL); + + search->start_page = start_page; + search->search_page = start_page; + + return search; +} + +static void +pdf_document_search_free (PdfDocumentSearch *search) +{ + PdfDocument *pdf_document = search->document; + int n_pages; + int i; + + if (search->idle != 0) + g_source_remove (search->idle); + + n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document)); + for (i = 0; i < n_pages; i++) { + g_list_foreach (search->pages[i], (GFunc) g_free, NULL); + g_list_free (search->pages[i]); + } + + g_free (search->text); +} + +static void +pdf_document_find_begin (EvDocumentFind *document, + int page, + const char *search_string, + gboolean case_sensitive) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document); + + /* FIXME handle case_sensitive (right now XPDF + * code is always case insensitive for ASCII + * and case sensitive for all other languaages) + */ + + if (pdf_document->search && + strcmp (search_string, pdf_document->search->text) == 0) + return; + + if (pdf_document->search) + pdf_document_search_free (pdf_document->search); + + pdf_document->search = pdf_document_search_new (pdf_document, + page, + search_string); +} + +int +pdf_document_find_get_n_results (EvDocumentFind *document_find, int page) +{ + PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search; + int current_page; + + if (search) { + return g_list_length (search->pages[page]); + } else { + return 0; + } +} + +gboolean +pdf_document_find_get_result (EvDocumentFind *document_find, + int page, + int n_result, + EvRectangle *rectangle) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document_find); + PdfDocumentSearch *search = pdf_document->search; + PopplerPage *poppler_page; + PopplerRectangle *r; + int current_page; + double height; + + if (search == NULL) + return FALSE; + + r = (PopplerRectangle *) g_list_nth_data (search->pages[page], + n_result); + if (r == NULL) + return FALSE; + + poppler_page = poppler_document_get_page (pdf_document->document, page); + poppler_page_get_size (poppler_page, NULL, &height); + rectangle->x1 = r->x1; + rectangle->y1 = height - r->y2; + rectangle->x2 = r->x2; + rectangle->y2 = height - r->y1; + + return TRUE; +} + +int +pdf_document_find_page_has_results (EvDocumentFind *document_find, + int page) +{ + PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search; + + g_return_val_if_fail (search != NULL, FALSE); + + return search->pages[page] != NULL; +} + +double +pdf_document_find_get_progress (EvDocumentFind *document_find) +{ + PdfDocumentSearch *search; + int n_pages, pages_done; + + search = PDF_DOCUMENT (document_find)->search; + + if (search == NULL) { + return 0; + } + + n_pages = pdf_document_get_n_pages (EV_DOCUMENT (document_find)); + if (search->search_page > search->start_page) { + pages_done = search->search_page - search->start_page + 1; + } else if (search->search_page == search->start_page) { + pages_done = n_pages; + } else { + pages_done = n_pages - search->start_page + search->search_page; + } + + return pages_done / (double) n_pages; +} + +static void +pdf_document_find_cancel (EvDocumentFind *document) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document); + + if (pdf_document->search) { + pdf_document_search_free (pdf_document->search); + pdf_document->search = NULL; + } +} + +static void +pdf_document_find_iface_init (EvDocumentFindIface *iface) +{ + iface->begin = pdf_document_find_begin; + iface->get_n_results = pdf_document_find_get_n_results; + iface->get_result = pdf_document_find_get_result; + iface->page_has_results = pdf_document_find_page_has_results; + iface->get_progress = pdf_document_find_get_progress; + iface->cancel = pdf_document_find_cancel; +} + +static void +pdf_document_ps_exporter_begin (EvPSExporter *exporter, const char *filename) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (exporter); + int n_pages; + + n_pages = pdf_document_get_n_pages (EV_DOCUMENT (exporter)); + pdf_document->ps_file = poppler_ps_file_new (pdf_document->document, + filename, n_pages); +} + +static void +pdf_document_ps_exporter_do_page (EvPSExporter *exporter, int page) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (exporter); + PopplerPage *poppler_page; + + g_return_if_fail (pdf_document->ps_file != NULL); + + poppler_page = poppler_document_get_page (pdf_document->document, page); + poppler_page_render_to_ps (poppler_page, pdf_document->ps_file); +} + +static void +pdf_document_ps_exporter_end (EvPSExporter *exporter) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (exporter); + + poppler_ps_file_free (pdf_document->ps_file); + pdf_document->ps_file = NULL; +} + +static void +pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface) +{ + iface->begin = pdf_document_ps_exporter_begin; + iface->do_page = pdf_document_ps_exporter_do_page; + iface->end = pdf_document_ps_exporter_end; +} + PdfDocument * pdf_document_new (void) {