2 * Copyright (C) 2003 Marco Pesenti Gritti
3 * Copyright (C) 2003, 2004 Christian Persch
5 * Modified 2005 by James Bowes for use in evince.
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)
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.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26 #include "ephy-zoom-action.h"
27 #include "ephy-zoom-control.h"
28 #include "ephy-zoom.h"
30 #include <glib-object.h>
31 #include <glib/gi18n.h>
34 #define EPHY_ZOOM_ACTION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_ZOOM_ACTION, EphyZoomActionPrivate))
36 struct _EphyZoomActionPrivate
52 static void ephy_zoom_action_init (EphyZoomAction *action);
53 static void ephy_zoom_action_class_init (EphyZoomActionClass *class);
61 static guint signals[LAST_SIGNAL] = { 0 };
63 G_DEFINE_TYPE (EphyZoomAction, ephy_zoom_action, GTK_TYPE_ACTION)
66 zoom_to_level_cb (EphyZoomControl *control,
68 EphyZoomAction *action)
70 g_signal_emit (action, signals[ZOOM_TO_LEVEL_SIGNAL], 0, zoom);
74 sync_zoom_cb (GtkAction *action, GParamSpec *pspec, GtkWidget *proxy)
76 EphyZoomAction *zoom_action = EPHY_ZOOM_ACTION (action);
78 g_object_set (G_OBJECT (proxy), "zoom", zoom_action->priv->zoom, NULL);
82 sync_min_zoom_cb (GtkAction *action, GParamSpec *pspec, GtkWidget *proxy)
84 EphyZoomAction *zoom_action = EPHY_ZOOM_ACTION (action);
86 g_object_set (G_OBJECT (proxy), "min-zoom", zoom_action->priv->min_zoom, NULL);
90 sync_max_zoom_cb (GtkAction *action, GParamSpec *pspec, GtkWidget *proxy)
92 EphyZoomAction *zoom_action = EPHY_ZOOM_ACTION (action);
94 g_object_set (G_OBJECT (proxy), "max-zoom", zoom_action->priv->max_zoom, NULL);
98 connect_proxy (GtkAction *action, GtkWidget *proxy)
100 if (EPHY_IS_ZOOM_CONTROL (proxy))
102 g_signal_connect_object (action, "notify::zoom",
103 G_CALLBACK (sync_zoom_cb), proxy, 0);
104 g_signal_connect_object (action, "notify::min-zoom",
105 G_CALLBACK (sync_min_zoom_cb), proxy, 0);
106 g_signal_connect_object (action, "notify::max-zoom",
107 G_CALLBACK (sync_max_zoom_cb), proxy, 0);
108 g_signal_connect (proxy, "zoom_to_level",
109 G_CALLBACK (zoom_to_level_cb), action);
112 GTK_ACTION_CLASS (ephy_zoom_action_parent_class)->connect_proxy (action, proxy);
116 proxy_menu_activate_cb (GtkMenuItem *menu_item, EphyZoomAction *action)
121 /* menu item was toggled OFF */
122 if (!gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (menu_item))) return;
124 index = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item), "zoom-level"));
125 zoom = zoom_levels[index].level;
127 if (zoom != action->priv->zoom)
129 g_signal_emit (action, signals[ZOOM_TO_LEVEL_SIGNAL], 0, zoom);
134 create_menu_item (GtkAction *action)
136 EphyZoomActionPrivate *p = EPHY_ZOOM_ACTION (action)->priv;
137 GtkWidget *menu, *menu_item;
138 GSList *group = NULL;
141 menu = gtk_menu_new ();
143 for (i = 0; i < n_zoom_levels; i++)
145 if (zoom_levels[i].level == EPHY_ZOOM_SEPARATOR)
147 menu_item = gtk_separator_menu_item_new ();
151 menu_item = gtk_radio_menu_item_new_with_label (group,
152 _(zoom_levels[i].name));
153 group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menu_item));
155 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menu_item),
156 p->zoom == zoom_levels[i].level);
158 g_object_set_data (G_OBJECT (menu_item), "zoom-level", GINT_TO_POINTER (i));
159 g_signal_connect_object (G_OBJECT (menu_item), "activate",
160 G_CALLBACK (proxy_menu_activate_cb), action, 0);
163 gtk_widget_show (menu_item);
164 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
167 gtk_widget_show (menu);
169 menu_item = GTK_ACTION_CLASS (ephy_zoom_action_parent_class)->create_menu_item (action);
171 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu);
173 gtk_widget_show (menu_item);
179 ephy_zoom_action_set_property (GObject *object,
184 EphyZoomAction *action;
186 action = EPHY_ZOOM_ACTION (object);
191 action->priv->zoom = g_value_get_float (value);
194 action->priv->min_zoom = g_value_get_float (value);
197 action->priv->max_zoom = g_value_get_float (value);
203 ephy_zoom_action_get_property (GObject *object,
208 EphyZoomAction *action;
210 action = EPHY_ZOOM_ACTION (object);
215 g_value_set_float (value, action->priv->zoom);
218 g_value_set_float (value, action->priv->min_zoom);
221 g_value_set_float (value, action->priv->max_zoom);
227 ephy_zoom_action_class_init (EphyZoomActionClass *class)
229 GObjectClass *object_class = G_OBJECT_CLASS (class);
230 GtkActionClass *action_class = GTK_ACTION_CLASS (class);
232 object_class->set_property = ephy_zoom_action_set_property;
233 object_class->get_property = ephy_zoom_action_get_property;
235 action_class->toolbar_item_type = EPHY_TYPE_ZOOM_CONTROL;
236 action_class->connect_proxy = connect_proxy;
237 action_class->create_menu_item = create_menu_item;
239 g_object_class_install_property (object_class,
241 g_param_spec_float ("zoom",
248 g_object_class_install_property (object_class,
250 g_param_spec_float ("min-zoom",
257 g_object_class_install_property (object_class,
259 g_param_spec_float ("max-zoom",
267 signals[ZOOM_TO_LEVEL_SIGNAL] =
268 g_signal_new ("zoom_to_level",
269 G_OBJECT_CLASS_TYPE (object_class),
271 G_STRUCT_OFFSET (EphyZoomActionClass, zoom_to_level),
273 g_cclosure_marshal_VOID__FLOAT,
278 g_type_class_add_private (object_class, sizeof (EphyZoomActionPrivate));
282 ephy_zoom_action_init (EphyZoomAction *action)
284 action->priv = EPHY_ZOOM_ACTION_GET_PRIVATE (action);
286 action->priv->zoom = 1.0;
290 ephy_zoom_action_set_zoom_level (EphyZoomAction *action, float zoom)
292 g_return_if_fail (EPHY_IS_ZOOM_ACTION (action));
294 if (zoom < ZOOM_MINIMAL || zoom > ZOOM_MAXIMAL) return;
296 action->priv->zoom = zoom;
297 g_object_notify (G_OBJECT (action), "zoom");
301 ephy_zoom_action_get_zoom_level (EphyZoomAction *action)
303 g_return_val_if_fail (EPHY_IS_ZOOM_ACTION (action), 1.0);
305 return action->priv->zoom;
309 ephy_zoom_action_set_min_zoom_level (EphyZoomAction *action,
312 g_return_if_fail (EPHY_IS_ZOOM_ACTION (action));
314 if (zoom < ZOOM_MINIMAL || zoom > ZOOM_MAXIMAL) return;
316 action->priv->min_zoom = zoom;
317 if (action->priv->zoom > 0 && action->priv->zoom < zoom)
318 ephy_zoom_action_set_zoom_level (action, zoom);
320 g_object_notify (G_OBJECT (action), "min-zoom");
324 ephy_zoom_action_set_max_zoom_level (EphyZoomAction *action,
327 g_return_if_fail (EPHY_IS_ZOOM_ACTION (action));
329 if (zoom < ZOOM_MINIMAL || zoom > ZOOM_MAXIMAL) return;
331 action->priv->max_zoom = zoom;
332 if (action->priv->zoom > 0 && action->priv->zoom > zoom)
333 ephy_zoom_action_set_zoom_level (action, zoom);
335 g_object_notify (G_OBJECT (action), "max-zoom");