static gboolean get_tag_bounds (GtkTextIter *iter, GtkTextTag *tag, GtkTextIter *start, GtkTextIter *end) { gboolean res = FALSE; g_return_val_if_fail (iter != NULL, FALSE); g_return_val_if_fail (tag != NULL, FALSE); g_return_val_if_fail (start != NULL, FALSE); g_return_val_if_fail (end != NULL, FALSE); if (gtk_text_iter_has_tag (iter, tag)) { *start = *iter; *end = *iter; if (!gtk_text_iter_begins_tag (start, tag)) gtk_text_iter_backward_to_tag_toggle (start, tag); if (!gtk_text_iter_ends_tag (end, tag)) gtk_text_iter_forward_to_tag_toggle (end, tag); res = TRUE; } return res; }
void gb_source_view_move_next_match (GbSourceView *view) { GtkTextBuffer *buffer; GdkRectangle rect; GtkTextIter iter; GtkTextTag *search_tag; gboolean wrapped = FALSE; g_return_if_fail(GB_IS_SOURCE_VIEW(view)); /* * TODO: Track current match, so move next match jumps past it next time. */ search_tag = gb_source_view_ref_search_tag(view); gtk_text_view_get_visible_rect(GTK_TEXT_VIEW(view), &rect); gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(view), &iter, rect.x, rect.y); again: if (!gtk_text_iter_begins_tag(&iter, search_tag)) { if (gtk_text_iter_forward_to_tag_toggle(&iter, search_tag)) { if (!gtk_text_iter_begins_tag(&iter, search_tag)) { gtk_text_iter_backward_to_tag_toggle(&iter, search_tag); } gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(view), &iter, 0.25, FALSE, 0, 0); goto cleanup; } if (!wrapped) { buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(view)); gtk_text_buffer_get_start_iter(buffer, &iter); wrapped = TRUE; goto again; } } cleanup: g_object_unref(search_tag); }
/** * gtk_text_buffer_deserialize: * @register_buffer: the #GtkTextBuffer @format is registered with * @content_buffer: the #GtkTextBuffer to deserialize into * @format: the rich text format to use for deserializing * @iter: insertion point for the deserialized text * @data: (array length=length): data to deserialize * @length: length of @data * @error: return location for a #GError * * This function deserializes rich text in format @format and inserts * it at @iter. * * @format<!-- -->s to be used must be registered using * gtk_text_buffer_register_deserialize_format() or * gtk_text_buffer_register_deserialize_tagset() beforehand. * * Return value: %TRUE on success, %FALSE otherwise. * * Since: 2.10 **/ gboolean gtk_text_buffer_deserialize (GtkTextBuffer *register_buffer, GtkTextBuffer *content_buffer, GdkAtom format, GtkTextIter *iter, const guint8 *data, gsize length, GError **error) { GList *formats; GList *list; g_return_val_if_fail (GTK_IS_TEXT_BUFFER (register_buffer), FALSE); g_return_val_if_fail (GTK_IS_TEXT_BUFFER (content_buffer), FALSE); g_return_val_if_fail (format != GDK_NONE, FALSE); g_return_val_if_fail (iter != NULL, FALSE); g_return_val_if_fail (data != NULL, FALSE); g_return_val_if_fail (length > 0, FALSE); g_return_val_if_fail (error == NULL || *error == NULL, FALSE); formats = g_object_get_qdata (G_OBJECT (register_buffer), deserialize_quark ()); for (list = formats; list; list = g_list_next (list)) { GtkRichTextFormat *fmt = list->data; if (fmt->atom == format) { GtkTextBufferDeserializeFunc function = fmt->function; gboolean success; GSList *split_tags; GSList *list; GtkTextMark *left_end = NULL; GtkTextMark *right_start = NULL; GSList *left_start_list = NULL; GSList *right_end_list = NULL; /* We don't want the tags that are effective at the insertion * point to affect the pasted text, therefore we remove and * remember them, so they can be re-applied left and right of * the inserted text after pasting */ split_tags = gtk_text_iter_get_tags (iter); list = split_tags; while (list) { GtkTextTag *tag = list->data; list = g_slist_next (list); /* If a tag begins at the insertion point, ignore it * because it doesn't affect the pasted text */ if (gtk_text_iter_begins_tag (iter, tag)) split_tags = g_slist_remove (split_tags, tag); } if (split_tags) { /* Need to remember text marks, because text iters * don't survive pasting */ left_end = gtk_text_buffer_create_mark (content_buffer, NULL, iter, TRUE); right_start = gtk_text_buffer_create_mark (content_buffer, NULL, iter, FALSE); for (list = split_tags; list; list = g_slist_next (list)) { GtkTextTag *tag = list->data; GtkTextIter *backward_toggle = gtk_text_iter_copy (iter); GtkTextIter *forward_toggle = gtk_text_iter_copy (iter); GtkTextMark *left_start = NULL; GtkTextMark *right_end = NULL; gtk_text_iter_backward_to_tag_toggle (backward_toggle, tag); left_start = gtk_text_buffer_create_mark (content_buffer, NULL, backward_toggle, FALSE); gtk_text_iter_forward_to_tag_toggle (forward_toggle, tag); right_end = gtk_text_buffer_create_mark (content_buffer, NULL, forward_toggle, TRUE); left_start_list = g_slist_prepend (left_start_list, left_start); right_end_list = g_slist_prepend (right_end_list, right_end); gtk_text_buffer_remove_tag (content_buffer, tag, backward_toggle, forward_toggle); gtk_text_iter_free (forward_toggle); gtk_text_iter_free (backward_toggle); } left_start_list = g_slist_reverse (left_start_list); right_end_list = g_slist_reverse (right_end_list); } success = function (register_buffer, content_buffer, iter, data, length, fmt->can_create_tags, fmt->user_data, error); if (!success && error != NULL && *error == NULL) g_set_error (error, 0, 0, _("Unknown error when trying to deserialize %s"), gdk_atom_name (format)); if (split_tags) { GSList *left_list; GSList *right_list; GtkTextIter left_e; GtkTextIter right_s; /* Turn the remembered marks back into iters so they * can by used to re-apply the remembered tags */ gtk_text_buffer_get_iter_at_mark (content_buffer, &left_e, left_end); gtk_text_buffer_get_iter_at_mark (content_buffer, &right_s, right_start); for (list = split_tags, left_list = left_start_list, right_list = right_end_list; list && left_list && right_list; list = g_slist_next (list), left_list = g_slist_next (left_list), right_list = g_slist_next (right_list)) { GtkTextTag *tag = list->data; GtkTextMark *left_start = left_list->data; GtkTextMark *right_end = right_list->data; GtkTextIter left_s; GtkTextIter right_e; gtk_text_buffer_get_iter_at_mark (content_buffer, &left_s, left_start); gtk_text_buffer_get_iter_at_mark (content_buffer, &right_e, right_end); gtk_text_buffer_apply_tag (content_buffer, tag, &left_s, &left_e); gtk_text_buffer_apply_tag (content_buffer, tag, &right_s, &right_e); gtk_text_buffer_delete_mark (content_buffer, left_start); gtk_text_buffer_delete_mark (content_buffer, right_end); } gtk_text_buffer_delete_mark (content_buffer, left_end); gtk_text_buffer_delete_mark (content_buffer, right_start); g_slist_free (split_tags); g_slist_free (left_start_list); g_slist_free (right_end_list); } return success; } } g_set_error (error, 0, 0, _("No deserialize function found for format %s"), gdk_atom_name (format)); return FALSE; }
static VALUE rg_begins_tag_p(VALUE self, VALUE tag) { return CBOOL2RVAL(gtk_text_iter_begins_tag(_SELF(self), RVAL2TAG(tag))); }