+
+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->start_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, 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 = pdf_document_get_page (EV_DOCUMENT (pdf_document));
+ search->search_page = search->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,
+ 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,
+ search_string);
+}
+
+int
+pdf_document_find_get_n_results (EvDocumentFind *document_find)
+{
+ PdfDocumentSearch *search = PDF_DOCUMENT (document_find)->search;
+ int current_page;
+
+ current_page = pdf_document_get_page (EV_DOCUMENT (document_find));
+
+ if (search) {
+ return g_list_length (search->pages[current_page]);
+ } else {
+ return 0;
+ }
+}
+
+gboolean
+pdf_document_find_get_result (EvDocumentFind *document_find,
+ int n_result,
+ GdkRectangle *rectangle)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document_find);
+ PdfDocumentSearch *search = pdf_document->search;
+ PopplerRectangle *r;
+ int current_page;
+ double scale;
+
+ if (search == NULL)
+ return FALSE;
+
+ current_page = pdf_document_get_page (EV_DOCUMENT (pdf_document));
+ r = (PopplerRectangle *) g_list_nth_data (search->pages[current_page],
+ n_result);
+ if (r == NULL)
+ return FALSE;
+
+ scale = pdf_document->scale;
+ rectangle->x = (gint) floor (r->x1 * scale);
+ rectangle->y = (gint) floor (r->y1 * scale);
+ rectangle->width = (gint) ceil (r->x2 * scale) - rectangle->x;
+ rectangle->height = (gint) ceil (r->y2 * scale) - rectangle->y;
+
+ 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;
+}
+
+
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff