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/*
Copyright 2010 Canonical Ltd.
Authors:
Conor Curran <conor.curran@canonical.com>
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License version 3, as published
by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranties of
MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib/gi18n.h>
#include <math.h>
#include <glib.h>
#include "volume-widget.h"
#include "common-defs.h"
#include <libido/idoscalemenuitem.h>
typedef struct _VolumeWidgetPrivate VolumeWidgetPrivate;
struct _VolumeWidgetPrivate
{
DbusmenuMenuitem* twin_item;
GtkWidget* ido_volume_slider;
gboolean grabbed;
};
#define VOLUME_WIDGET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), VOLUME_WIDGET_TYPE, VolumeWidgetPrivate))
/* Prototypes */
static void volume_widget_class_init (VolumeWidgetClass *klass);
static void volume_widget_init (VolumeWidget *self);
static void volume_widget_dispose (GObject *object);
static void volume_widget_finalize (GObject *object);
static void volume_widget_set_twin_item( VolumeWidget* self,
DbusmenuMenuitem* twin_item);
static void volume_widget_property_update( DbusmenuMenuitem* item, gchar* property,
GValue* value, gpointer userdata);
static gboolean volume_widget_change_value_cb (GtkRange *range,
GtkScrollType scroll,
gdouble value,
gpointer user_data);
static gboolean volume_widget_value_changed_cb(GtkRange *range, gpointer user_data);
static void volume_widget_slider_grabbed(GtkWidget *widget, gpointer user_data);
static void volume_widget_slider_released(GtkWidget *widget, gpointer user_data);
static void volume_widget_parent_changed (GtkWidget *widget, gpointer user_data);
G_DEFINE_TYPE (VolumeWidget, volume_widget, G_TYPE_OBJECT);
static void
volume_widget_class_init (VolumeWidgetClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (VolumeWidgetPrivate));
gobject_class->dispose = volume_widget_dispose;
gobject_class->finalize = volume_widget_finalize;
}
static void
volume_widget_init (VolumeWidget *self)
{
g_debug("VolumeWidget::volume_widget_init");
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(self);
priv->ido_volume_slider = ido_scale_menu_item_new_with_range ("VOLUME", IDO_RANGE_STYLE_DEFAULT, 0, 0, 100, 1);
g_object_ref (priv->ido_volume_slider);
ido_scale_menu_item_set_style (IDO_SCALE_MENU_ITEM (priv->ido_volume_slider), IDO_SCALE_MENU_ITEM_STYLE_IMAGE);
g_object_set(priv->ido_volume_slider, "reverse-scroll-events", TRUE, NULL);
g_signal_connect (priv->ido_volume_slider,
"notify::parent", G_CALLBACK (volume_widget_parent_changed),
NULL);
GtkWidget* volume_widget = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
g_signal_connect(volume_widget, "change-value", G_CALLBACK(volume_widget_change_value_cb), self);
g_signal_connect(volume_widget, "value-changed", G_CALLBACK(volume_widget_value_changed_cb), self);
g_signal_connect(priv->ido_volume_slider, "slider-grabbed", G_CALLBACK(volume_widget_slider_grabbed), self);
g_signal_connect(priv->ido_volume_slider, "slider-released", G_CALLBACK(volume_widget_slider_released), self);
GtkWidget* primary_image = ido_scale_menu_item_get_primary_image((IdoScaleMenuItem*)priv->ido_volume_slider);
GIcon * primary_gicon = g_themed_icon_new_with_default_fallbacks("audio-volume-low-zero-panel");
gtk_image_set_from_gicon(GTK_IMAGE(primary_image), primary_gicon, GTK_ICON_SIZE_MENU);
g_object_unref(primary_gicon);
GtkWidget* secondary_image = ido_scale_menu_item_get_secondary_image((IdoScaleMenuItem*)priv->ido_volume_slider);
GIcon * secondary_gicon = g_themed_icon_new_with_default_fallbacks("audio-volume-high-panel");
gtk_image_set_from_gicon(GTK_IMAGE(secondary_image), secondary_gicon, GTK_ICON_SIZE_MENU);
g_object_unref(secondary_gicon);
GtkAdjustment *adj = gtk_range_get_adjustment (GTK_RANGE (volume_widget));
gtk_adjustment_set_step_increment(adj, 4);
}
static void
volume_widget_dispose (GObject *object)
{
G_OBJECT_CLASS (volume_widget_parent_class)->dispose (object);
}
static void
volume_widget_finalize (GObject *object)
{
G_OBJECT_CLASS (volume_widget_parent_class)->finalize (object);
}
static void
volume_widget_property_update(DbusmenuMenuitem* item, gchar* property,
GValue* value, gpointer userdata)
{
g_return_if_fail (IS_VOLUME_WIDGET (userdata));
VolumeWidget* mitem = VOLUME_WIDGET(userdata);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
g_debug("scrub-widget::property_update for prop %s", property);
if(g_ascii_strcasecmp(DBUSMENU_VOLUME_MENUITEM_LEVEL, property) == 0){
if(priv->grabbed == FALSE){
GtkWidget *slider = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
GtkRange *range = (GtkRange*)slider;
gdouble update = g_value_get_double (value);
g_debug("volume-widget - update level with value %f", update);
gtk_range_set_value(range, update);
determine_state_from_volume(update);
}
}
}
static void
volume_widget_set_twin_item(VolumeWidget* self,
DbusmenuMenuitem* twin_item)
{
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(self);
priv->twin_item = twin_item;
g_object_ref(priv->twin_item);
g_signal_connect(G_OBJECT(twin_item), "property-changed",
G_CALLBACK(volume_widget_property_update), self);
gdouble initial_level = g_value_get_double (dbusmenu_menuitem_property_get_value(twin_item,
DBUSMENU_VOLUME_MENUITEM_LEVEL));
g_debug("volume_widget_set_twin_item initial level = %f", initial_level);
GtkWidget *slider = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
GtkRange *range = (GtkRange*)slider;
gtk_range_set_value(range, initial_level);
determine_state_from_volume(initial_level);
}
static gboolean
volume_widget_change_value_cb (GtkRange *range,
GtkScrollType scroll,
gdouble new_value,
gpointer user_data)
{
g_return_val_if_fail (IS_VOLUME_WIDGET (user_data), FALSE);
VolumeWidget* mitem = VOLUME_WIDGET(user_data);
volume_widget_update(mitem, new_value);
determine_state_from_volume(new_value);
return FALSE;
}
/*
We only want this callback to catch mouse icon press events
which set the slider to 0 or 100. Ignore all other events.
*/
static gboolean
volume_widget_value_changed_cb(GtkRange *range, gpointer user_data)
{
g_return_val_if_fail (IS_VOLUME_WIDGET (user_data), FALSE);
VolumeWidget* mitem = VOLUME_WIDGET(user_data);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
GtkWidget *slider = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
gdouble current_value = CLAMP(gtk_range_get_value(GTK_RANGE(slider)), 0, 100);
if(current_value == 0 || current_value == 100){
volume_widget_update(mitem, current_value);
}
return FALSE;
}
void
volume_widget_update(VolumeWidget* self, gdouble update)
{
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(self);
GValue value = {0};
g_value_init(&value, G_TYPE_DOUBLE);
gdouble clamped = CLAMP(update, 0, 100);
g_value_set_double(&value, clamped);
dbusmenu_menuitem_handle_event (priv->twin_item, "update", &value, 0);
}
GtkWidget*
volume_widget_get_ido_slider(VolumeWidget* self)
{
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(self);
return priv->ido_volume_slider;
}
static void
volume_widget_parent_changed (GtkWidget *widget,
gpointer user_data)
{
gtk_widget_set_size_request (widget, 200, -1);
g_debug("volume_widget_parent_changed");
}
static void
volume_widget_slider_grabbed(GtkWidget *widget, gpointer user_data)
{
VolumeWidget* mitem = VOLUME_WIDGET(user_data);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
priv->grabbed = TRUE;
}
static void
volume_widget_slider_released(GtkWidget *widget, gpointer user_data)
{
VolumeWidget* mitem = VOLUME_WIDGET(user_data);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
priv->grabbed = FALSE;
}
void
volume_widget_tidy_up (GtkWidget *widget)
{
VolumeWidget* mitem = VOLUME_WIDGET(widget);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
gtk_widget_destroy (priv->ido_volume_slider);
}
gdouble
volume_widget_get_current_volume ( GtkWidget *widget )
{
VolumeWidget* mitem = VOLUME_WIDGET(widget);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
gdouble vol = g_value_get_double ( dbusmenu_menuitem_property_get_value( priv->twin_item,
DBUSMENU_VOLUME_MENUITEM_LEVEL));
return vol;
}
/**
* volume_widget_new:
* @returns: a new #VolumeWidget.
**/
GtkWidget*
volume_widget_new(DbusmenuMenuitem *item)
{
GtkWidget* widget = g_object_new(VOLUME_WIDGET_TYPE, NULL);
volume_widget_set_twin_item((VolumeWidget*)widget, item);
return widget;
}
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