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/*
* Copyright © 2003 Marco Pesenti Gritti
* Copyright © 2003, 2004 Christian Persch
*
* 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 "config.h"
#include "ephy-zoom-action.h"
#include "ephy-zoom.h"
#include <glib/gi18n.h>
/**
* SECTION:ephy-zoom-action
* @short_description: A #GtkAction implementing a zoom control
*
* #EphyZoomAction implements a #GtkAction able to control the zoom level.
*/
#define EPHY_ZOOM_ACTION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_ZOOM_ACTION, EphyZoomActionPrivate))
struct _EphyZoomActionPrivate
{
float zoom;
};
enum
{
PROP_0,
PROP_ZOOM
};
static void ephy_zoom_action_init (EphyZoomAction *action);
static void ephy_zoom_action_class_init (EphyZoomActionClass *class);
enum
{
ZOOM_TO_LEVEL_SIGNAL,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (EphyZoomAction, ephy_zoom_action, GTK_TYPE_ACTION)
static void
proxy_menu_activate_cb (GtkMenuItem *menu_item, EphyZoomAction *action)
{
gint index;
float zoom;
/* menu item was toggled OFF */
if (!gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (menu_item))) return;
index = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item), "zoom-level"));
zoom = zoom_levels[index].level;
if (zoom != action->priv->zoom)
{
g_signal_emit (action, signals[ZOOM_TO_LEVEL_SIGNAL], 0, zoom);
}
}
static GtkWidget *
create_menu_item (GtkAction *action)
{
EphyZoomActionPrivate *p = EPHY_ZOOM_ACTION (action)->priv;
GtkWidget *menu, *menu_item;
GSList *group = NULL;
int i;
menu = gtk_menu_new ();
for (i = 0; i < n_zoom_levels; i++)
{
menu_item = gtk_radio_menu_item_new_with_label (group, _(zoom_levels[i].name));
group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menu_item));
gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menu_item),
p->zoom == zoom_levels[i].level);
gtk_widget_show (menu_item);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
g_object_set_data (G_OBJECT (menu_item), "zoom-level", GINT_TO_POINTER (i));
g_signal_connect_object (G_OBJECT (menu_item), "activate",
G_CALLBACK (proxy_menu_activate_cb), action, 0);
}
gtk_widget_show (menu);
menu_item = GTK_ACTION_CLASS (ephy_zoom_action_parent_class)->create_menu_item (action);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu);
gtk_widget_show (menu_item);
return menu_item;
}
static void
ephy_zoom_action_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
EphyZoomAction *action;
action = EPHY_ZOOM_ACTION (object);
switch (prop_id)
{
case PROP_ZOOM:
action->priv->zoom = g_value_get_float (value);
break;
}
}
static void
ephy_zoom_action_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
EphyZoomAction *action;
action = EPHY_ZOOM_ACTION (object);
switch (prop_id)
{
case PROP_ZOOM:
g_value_set_float (value, action->priv->zoom);
break;
}
}
static void
ephy_zoom_action_class_init (EphyZoomActionClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkActionClass *action_class = GTK_ACTION_CLASS (class);
object_class->set_property = ephy_zoom_action_set_property;
object_class->get_property = ephy_zoom_action_get_property;
action_class->create_menu_item = create_menu_item;
/**
* EphyZoomAction:zoom:
*
* The current value of #EphyZoomAction, as a float.
*/
g_object_class_install_property (object_class,
PROP_ZOOM,
g_param_spec_float ("zoom", NULL, NULL,
ZOOM_MINIMAL,
ZOOM_MAXIMAL,
1.0,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
/**
* EphyZoomAction::zoom-to-level:
* @action: the object on which the signal is emitted
* @level: new zoom level
*
* Emitted when the user changes the value of the #EphyZoomAction.
*/
signals[ZOOM_TO_LEVEL_SIGNAL] =
g_signal_new ("zoom-to-level",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (EphyZoomActionClass, zoom_to_level),
NULL, NULL,
g_cclosure_marshal_VOID__FLOAT,
G_TYPE_NONE,
1,
G_TYPE_FLOAT);
g_type_class_add_private (object_class, sizeof (EphyZoomActionPrivate));
}
static void
ephy_zoom_action_init (EphyZoomAction *action)
{
action->priv = EPHY_ZOOM_ACTION_GET_PRIVATE (action);
action->priv->zoom = 1.0;
}
/**
* ephy_zoom_action_set_zoom_level:
* @action: an #EphyZoomAction
* @zoom: the new value for the zoom level
*
* Sets the zoom level of @action.
**/
void
ephy_zoom_action_set_zoom_level (EphyZoomAction *action, float zoom)
{
g_return_if_fail (EPHY_IS_ZOOM_ACTION (action));
if (zoom < ZOOM_MINIMAL || zoom > ZOOM_MAXIMAL) return;
action->priv->zoom = zoom;
g_object_notify (G_OBJECT (action), "zoom");
}
/**
* ephy_zoom_action_get_zoom_level:
* @action: an #EphyZoomControl
*
* Get the current zoom level of @action.
*
* Returns: the zoom level as a float
**/
float
ephy_zoom_action_get_zoom_level (EphyZoomAction *action)
{
g_return_val_if_fail (EPHY_IS_ZOOM_ACTION (action), 1.0);
return action->priv->zoom;
}
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