/* GTK - The GIMP Toolkit
* Copyright ( C ) 2007 Red Hat , Inc .
*
* Authors :
* - Bastien Nocera < bnocera @ redhat . com >
*
* This library is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation ; either
* version 2 of the License , or ( at your option ) any later version .
*
* This library 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
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library . If not , see < http : //www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK + Team and others 2007 . See the AUTHORS
* file for a list of people on the GTK + Team . See the ChangeLog
* files for a list of changes . These files are distributed with
* GTK + at ftp : //ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include "gtkvolumebutton.h"
#include "gtkadjustment.h"
#include <glib/gi18n-lib.h>
#include "gtktooltip.h"
#include "gtkprivate.h"
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
/**
* GtkVolumeButton :
*
* ` GtkVolumeButton ` is a ` GtkScaleButton ` subclass tailored for
* volume control .
*
* < picture >
* < source srcset = " volumebutton - dark . png " media = " ( prefers - color - scheme : dark ) " >
* < img alt = " An example GtkVolumeButton " src = " volumebutton . png " >
* < / picture >
*
* Deprecated : 4 . 10 : This widget will be removed in GTK 5
*/
typedef struct _GtkVolumeButtonClass GtkVolumeButtonClass;
struct _GtkVolumeButtonClass
{
GtkScaleButtonClass parent_class;
};
#define EPSILON (1 e-10 )
static const char * const icons[] =
{
"audio-volume-muted" ,
"audio-volume-high" ,
"audio-volume-low" ,
"audio-volume-medium" ,
NULL
};
static const char * const icons_symbolic[] =
{
"audio-volume-muted-symbolic" ,
"audio-volume-high-symbolic" ,
"audio-volume-low-symbolic" ,
"audio-volume-medium-symbolic" ,
NULL
};
enum
{
PROP_0,
PROP_SYMBOLIC,
N_PROPS
};
static GParamSpec *props[N_PROPS] = { NULL, };
static gboolean cb_query_tooltip (GtkWidget *button,
int x,
int y,
gboolean keyboard_mode,
GtkTooltip *tooltip,
gpointer user_data);
static void cb_value_changed (GtkVolumeButton *button,
double value,
gpointer user_data);
G_DEFINE_TYPE (GtkVolumeButton, gtk_volume_button, GTK_TYPE_SCALE_BUTTON)
static gboolean
get_symbolic (GtkScaleButton *button)
{
char **icon_list;
gboolean ret;
g_object_get (button, "icons" , &icon_list, NULL);
if (icon_list != NULL &&
icon_list[0 ] != NULL &&
g_str_equal (icon_list[0 ], icons_symbolic[0 ]))
ret = TRUE ;
else
ret = FALSE ;
g_strfreev (icon_list);
return ret;
}
static void
gtk_volume_button_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkScaleButton *button = GTK_SCALE_BUTTON (object);
switch (prop_id)
{
case PROP_SYMBOLIC:
if (get_symbolic (button) != g_value_get_boolean (value))
{
if (g_value_get_boolean (value))
gtk_scale_button_set_icons (button, (const char **) icons_symbolic);
else
gtk_scale_button_set_icons (button, (const char **) icons);
g_object_notify_by_pspec (object, pspec);
}
break ;
default :
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break ;
}
}
static void
gtk_volume_button_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
switch (prop_id)
{
case PROP_SYMBOLIC:
g_value_set_boolean (value, get_symbolic (GTK_SCALE_BUTTON (object)));
break ;
default :
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break ;
}
}
static void
gtk_volume_button_class_init (GtkVolumeButtonClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
gobject_class->set_property = gtk_volume_button_set_property;
gobject_class->get_property = gtk_volume_button_get_property;
/**
* GtkVolumeButton : use - symbolic :
*
* Whether to use symbolic icons as the icons .
*
* Note that if the symbolic icons are not available in your installed
* theme , then the normal ( potentially colorful ) icons will be used .
*
* Deprecated : 4 . 10 : This widget will be removed in GTK 5
*/
props[PROP_SYMBOLIC] = g_param_spec_boolean ("use-symbolic" , NULL, NULL,
TRUE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_CONSTRUCT | G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (gobject_class, N_PROPS, props);
/* Bind class to template
*/
gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkvolumebutton.ui" );
gtk_widget_class_bind_template_callback (widget_class, cb_query_tooltip);
gtk_widget_class_bind_template_callback (widget_class, cb_value_changed);
}
static void
gtk_volume_button_init (GtkVolumeButton *button)
{
GtkWidget *widget = GTK_WIDGET (button);
gtk_widget_init_template (widget);
}
/**
* gtk_volume_button_new :
*
* Creates a ` GtkVolumeButton ` .
*
* The button has a range between 0 . 0 and 1 . 0 , with a stepping of 0 . 02 .
* Volume values can be obtained and modified using the functions from
* [ class @ Gtk . ScaleButton ] .
*
* Returns : a new ` GtkVolumeButton `
*
* Deprecated : 4 . 10 : This widget will be removed in GTK 5
*/
GtkWidget *
gtk_volume_button_new (void )
{
GObject *button;
button = g_object_new (GTK_TYPE_VOLUME_BUTTON, NULL);
return GTK_WIDGET (button);
}
static gboolean
cb_query_tooltip (GtkWidget *button,
int x,
int y,
gboolean keyboard_mode,
GtkTooltip *tooltip,
gpointer user_data)
{
GtkScaleButton *scale_button = GTK_SCALE_BUTTON (button);
GtkAdjustment *adjustment;
double val;
char *str;
adjustment = gtk_scale_button_get_adjustment (scale_button);
val = gtk_scale_button_get_value (scale_button);
if (val < (gtk_adjustment_get_lower (adjustment) + EPSILON))
{
str = g_strdup (_("Muted" ));
}
else if (val >= (gtk_adjustment_get_upper (adjustment) - EPSILON))
{
str = g_strdup (_("Full Volume" ));
}
else
{
int percent;
percent = (int ) (100 . * val / (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_lower (adjustment)) + .5 );
/* Translators: this is the percentage of the current volume,
* as used in the tooltip , eg . " 49 % " .
* Translate the " % d " to " % Id " if you want to use localised digits ,
* or otherwise translate the " % d " to " % d " .
*/
str = g_strdup_printf (C_("volume percentage" , "%d %%" ), percent);
}
gtk_tooltip_set_text (tooltip, str);
g_free (str);
return TRUE ;
}
static void
cb_value_changed (GtkVolumeButton *button, double value, gpointer user_data)
{
gtk_widget_trigger_tooltip_query (GTK_WIDGET (button));
}
Messung V0.5 in Prozent C=97 H=95 G=95
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-07-02)
¤
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