| /* poppler-layer.cc: glib interface to poppler |
| * |
| * Copyright (C) 2008 Carlos Garcia Campos <carlosgc@gnome.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "poppler-layer.h" |
| #include "poppler-private.h" |
| |
| /** |
| * SECTION:poppler-layer |
| * @short_description: Layers |
| * @title: PopplerLayer |
| */ |
| |
| typedef struct _PopplerLayerClass PopplerLayerClass; |
| struct _PopplerLayerClass |
| { |
| GObjectClass parent_class; |
| }; |
| |
| G_DEFINE_TYPE (PopplerLayer, poppler_layer, G_TYPE_OBJECT) |
| |
| static void |
| poppler_layer_finalize (GObject *object) |
| { |
| PopplerLayer *poppler_layer = POPPLER_LAYER (object); |
| |
| if (poppler_layer->document) |
| { |
| g_object_unref (poppler_layer->document); |
| poppler_layer->document = NULL; |
| } |
| |
| if (poppler_layer->title) |
| { |
| g_free (poppler_layer->title); |
| poppler_layer->title = NULL; |
| } |
| poppler_layer->layer = NULL; |
| poppler_layer->rbgroup = NULL; |
| |
| G_OBJECT_CLASS (poppler_layer_parent_class)->finalize (object); |
| } |
| |
| static void |
| poppler_layer_init (PopplerLayer *layer) |
| { |
| } |
| |
| static void |
| poppler_layer_class_init (PopplerLayerClass *klass) |
| { |
| GObjectClass *gobject_class = G_OBJECT_CLASS (klass); |
| |
| gobject_class->finalize = poppler_layer_finalize; |
| } |
| |
| PopplerLayer * |
| _poppler_layer_new (PopplerDocument *document, |
| Layer *layer, |
| GList *rbgroup) |
| { |
| PopplerLayer *poppler_layer; |
| GooString *layer_name; |
| |
| g_return_val_if_fail (POPPLER_IS_DOCUMENT (document), NULL); |
| g_return_val_if_fail (layer != NULL, NULL); |
| |
| poppler_layer = POPPLER_LAYER (g_object_new (POPPLER_TYPE_LAYER, NULL)); |
| |
| poppler_layer->document = (PopplerDocument *)g_object_ref (document); |
| poppler_layer->layer = layer; |
| poppler_layer->rbgroup = rbgroup; |
| layer_name = layer->oc->getName (); |
| poppler_layer->title = layer_name ? _poppler_goo_string_to_utf8 (layer_name) : NULL; |
| |
| return poppler_layer; |
| } |
| |
| /** |
| * poppler_layer_get_title |
| * @layer: a #PopplerLayer |
| * |
| * Returns the name of the layer suitable for |
| * presentation as a title in a viewer's GUI |
| * |
| * Return value: a string containing the title of the layer |
| * |
| * Since: 0.12 |
| **/ |
| const gchar * |
| poppler_layer_get_title (PopplerLayer *poppler_layer) |
| { |
| g_return_val_if_fail (POPPLER_IS_LAYER (poppler_layer), NULL); |
| |
| return poppler_layer->title; |
| } |
| |
| /** |
| * poppler_layer_is_visible |
| * @layer: a #PopplerLayer |
| * |
| * Returns whether @layer is visible |
| * |
| * Return value: %TRUE if @layer is visible |
| * |
| * Since: 0.12 |
| **/ |
| gboolean |
| poppler_layer_is_visible (PopplerLayer *poppler_layer) |
| { |
| g_return_val_if_fail (POPPLER_IS_LAYER (poppler_layer), FALSE); |
| |
| return poppler_layer->layer->oc->getState () == OptionalContentGroup::On; |
| } |
| |
| /** |
| * poppler_layer_show |
| * @layer: a #PopplerLayer |
| * |
| * Shows @layer |
| * |
| * Since: 0.12 |
| **/ |
| void |
| poppler_layer_show (PopplerLayer *poppler_layer) |
| { |
| GList *l; |
| Layer *layer; |
| |
| g_return_if_fail (POPPLER_IS_LAYER (poppler_layer)); |
| |
| layer = poppler_layer->layer; |
| |
| if (layer->oc->getState () == OptionalContentGroup::On) |
| return; |
| |
| layer->oc->setState (OptionalContentGroup::On); |
| |
| for (l = poppler_layer->rbgroup; l && l->data; l = g_list_next (l)) { |
| OptionalContentGroup *oc = (OptionalContentGroup *)l->data; |
| |
| if (oc != layer->oc) |
| oc->setState (OptionalContentGroup::Off); |
| } |
| } |
| |
| /** |
| * poppler_layer_hide |
| * @layer: a #PopplerLayer |
| * |
| * Hides @layer. If @layer is the parent of other nested layers, |
| * such layers will be also hidden and will be blocked until @layer |
| * is shown again |
| * |
| * Since: 0.12 |
| **/ |
| void |
| poppler_layer_hide (PopplerLayer *poppler_layer) |
| { |
| Layer *layer; |
| |
| g_return_if_fail (POPPLER_IS_LAYER (poppler_layer)); |
| |
| layer = poppler_layer->layer; |
| |
| if (layer->oc->getState () == OptionalContentGroup::Off) |
| return; |
| |
| layer->oc->setState (OptionalContentGroup::Off); |
| } |
| |
| |
| /** |
| * poppler_layer_is_parent |
| * @layer: a #PopplerLayer |
| * |
| * Returns whether @layer is parent of other nested layers. |
| * |
| * Return value: %TRUE if @layer is a parent layer |
| * |
| * Since: 0.12 |
| **/ |
| gboolean |
| poppler_layer_is_parent (PopplerLayer *poppler_layer) |
| { |
| g_return_val_if_fail (POPPLER_IS_LAYER (poppler_layer), FALSE); |
| |
| return poppler_layer->layer->kids != NULL; |
| } |
| |
| /** |
| * poppler_layer_get_radio_button_group_id |
| * @layer: a #PopplerLayer |
| * |
| * Returns the numeric ID the radio button group associated with @layer. |
| * |
| * Return value: the ID of the radio button group associated with @layer, |
| * or 0 if the layer is not associated to any radio button group |
| * |
| * Since: 0.12 |
| **/ |
| gint |
| poppler_layer_get_radio_button_group_id (PopplerLayer *poppler_layer) |
| { |
| g_return_val_if_fail (POPPLER_IS_LAYER (poppler_layer), FALSE); |
| |
| return GPOINTER_TO_INT (poppler_layer->rbgroup); |
| } |