Mixer
/* $Id$ */
/* Copyright (c) 2017-2018 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Mixer */
/* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include <stdlib.h>
#ifdef DEBUG
# include <stdio.h>
#endif
#include <libintl.h>
#include <System/object.h>
#include <Desktop.h>
#include "Mixer/control.h"
#define _(string) gettext(string)
/* MixerControlChannels */
/* private */
/* types */
typedef struct _MixerControlChannel
{
MixerControlPlugin * plugin;
GtkWidget * widget;
} MixerControlChannel;
struct _MixerControlPlugin
{
MixerControlPluginHelper * helper;
GtkWidget * widget;
unsigned int delta;
/* channels */
GtkWidget * hbox;
MixerControlChannel * channels;
size_t channels_cnt;
GtkWidget * bbox;
/* bind */
GtkWidget * bind;
GtkWidget * bind_image;
/* mute */
GtkWidget * mute;
#if !GTK_CHECK_VERSION(3, 0, 0)
GtkWidget * mute_image;
#endif
gboolean signal;
};
/* prototypes */
/* control */
static MixerControlPlugin * _channels_init(MixerControlPluginHelper * helper,
String const * type, va_list properties);
static void _channels_destroy(MixerControlPlugin * channels);
static int _channels_get(MixerControlPlugin * channels, va_list properties);
static String const * _channels_get_type(MixerControlPlugin * channels);
static GtkWidget * _channels_get_widget(MixerControlPlugin * channels);
static int _channels_set(MixerControlPlugin * channels, va_list properties);
/* callbacks */
static void _channels_on_bind_toggled(gpointer data);
static void _channels_on_changed(GtkWidget * widget, gpointer data);
#if GTK_CHECK_VERSION(3, 0, 0)
static void _channels_on_mute_notify_active(gpointer data);
#else
static void _channels_on_mute_toggled(gpointer data);
#endif
/* public */
/* variables */
MixerControlDefinition control =
{
NULL,
"Channels",
NULL,
_channels_init,
_channels_destroy,
_channels_get,
_channels_get_type,
_channels_get_widget,
_channels_set
};
/* private */
/* functions */
/* channels_init */
static MixerControlPlugin * _channels_init(MixerControlPluginHelper * helper,
String const * type, va_list properties)
{
MixerControlPlugin * channels;
GtkWidget * hbox;
GtkWidget * widget;
#if !GTK_CHECK_VERSION(3, 14, 0)
GtkWidget * align;
#endif
(void) type;
if((channels = object_new(sizeof(*channels))) == NULL)
return NULL;
channels->helper = helper;
channels->widget = gtk_box_new(GTK_ORIENTATION_VERTICAL, 4);
gtk_container_set_border_width(GTK_CONTAINER(channels->widget), 4);
channels->delta = 1;
channels->channels = NULL;
channels->channels_cnt = 0;
channels->hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 4);
#if GTK_CHECK_VERSION(3, 14, 0)
gtk_widget_set_halign(channels->hbox, GTK_ALIGN_CENTER);
gtk_box_pack_start(GTK_BOX(channels->widget), channels->hbox, TRUE,
TRUE, 0);
#else
align = gtk_alignment_new(0.5, 0.5, 0.0, 1.0);
gtk_container_add(GTK_CONTAINER(align), channels->hbox);
gtk_box_pack_start(GTK_BOX(channels->widget), align, TRUE, TRUE, 0);
#endif
channels->bbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 4);
gtk_box_set_homogeneous(GTK_BOX(channels->bbox), TRUE);
/* bind */
channels->bind = gtk_toggle_button_new();
hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 4);
channels->bind_image = gtk_image_new_from_icon_name("gtk-connect",
GTK_ICON_SIZE_BUTTON);
gtk_box_pack_start(GTK_BOX(hbox), channels->bind_image, FALSE, TRUE, 0);
widget = gtk_label_new(_("Bind"));
gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE, 0);
gtk_widget_show_all(hbox);
gtk_container_add(GTK_CONTAINER(channels->bind), hbox);
gtk_widget_set_no_show_all(channels->bind, TRUE);
g_signal_connect_swapped(channels->bind, "toggled", G_CALLBACK(
_channels_on_bind_toggled), channels);
hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start(GTK_BOX(hbox), channels->bind, TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(channels->bbox), hbox, FALSE, TRUE, 0);
/* mute */
#if GTK_CHECK_VERSION(3, 0, 0)
channels->mute = gtk_switch_new();
g_signal_connect_swapped(channels->mute, "notify::active",
G_CALLBACK(_channels_on_mute_notify_active), channels);
#else
channels->mute = gtk_toggle_button_new();
hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 4);
channels->mute_image = gtk_image_new_from_icon_name(
"audio-volume-muted", GTK_ICON_SIZE_BUTTON);
gtk_box_pack_start(GTK_BOX(hbox), channels->mute_image, FALSE, TRUE, 0);
widget = gtk_label_new(_("Mute"));
gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE, 0);
gtk_widget_show_all(hbox);
gtk_container_add(GTK_CONTAINER(channels->mute), hbox);
g_signal_connect_swapped(channels->mute, "toggled", G_CALLBACK(
_channels_on_mute_toggled), channels);
#endif
gtk_widget_set_no_show_all(channels->mute, TRUE);
hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start(GTK_BOX(hbox), channels->mute, TRUE, TRUE, 0);
gtk_box_pack_end(GTK_BOX(channels->bbox), hbox, FALSE, TRUE, 0);
gtk_box_pack_end(GTK_BOX(channels->widget), channels->bbox, FALSE, TRUE,
0);
channels->signal = FALSE;
if(_channels_set(channels, properties) != 0)
{
_channels_destroy(channels);
return NULL;
}
return channels;
}
/* channels_destroy */
static void _channels_destroy(MixerControlPlugin * channels)
{
free(channels->channels);
object_delete(channels);
}
/* accessors */
static gboolean _get_mute(MixerControlPlugin * channels);
static int _channels_get(MixerControlPlugin * channels, va_list properties)
{
String const * p;
gboolean * b;
double * value;
size_t i;
unsigned int * u;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
while((p = va_arg(properties, String const *)) != NULL)
if(string_compare(p, "bind") == 0)
{
b = va_arg(properties, gboolean *);
*b = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
channels->bind));
}
else if(string_compare(p, "delta") == 0)
{
u = va_arg(properties, unsigned int *);
*u = channels->delta;
}
else if(string_compare(p, "mute") == 0)
{
b = va_arg(properties, gboolean *);
*b = _get_mute(channels);
}
else if(string_compare(p, "value") == 0)
{
if(channels->channels_cnt == 0)
return -1;
if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
channels->bind))
== FALSE)
return -1;
value = va_arg(properties, double *);
*value = gtk_range_get_value(GTK_RANGE(
channels->channels[0].widget));
}
else if(sscanf(p, "value%zu", &i) == 1)
{
if(i >= channels->channels_cnt)
return -1;
value = va_arg(properties, double *);
*value = gtk_range_get_value(GTK_RANGE(
channels->channels[i].widget));
}
/* FIXME implement the rest */
else
return -1;
return 0;
}
static gboolean _get_mute(MixerControlPlugin * channels)
{
#if GTK_CHECK_VERSION(3, 0, 0)
return gtk_switch_get_active(GTK_SWITCH(channels->mute));
#else
return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(channels->mute));
#endif
}
/* channels_get_type */
static String const * _channels_get_type(MixerControlPlugin * channels)
{
(void) channels;
return "channels";
}
/* channels_get_widget */
static GtkWidget * _channels_get_widget(MixerControlPlugin * channels)
{
return channels->widget;
}
/* channels_set */
static void _set_bind(MixerControlPlugin * channels, gboolean bind);
static int _set_channels(MixerControlPlugin * channels, size_t cnt);
static void _set_delta(MixerControlPlugin * channels, unsigned int delta);
static void _set_mute(MixerControlPlugin * channels, gboolean mute);
static void _set_value(MixerControlPlugin * channels, gdouble value);
static void _set_value_channel(MixerControlPlugin * channels,
size_t channel, gdouble value);
static int _channels_set(MixerControlPlugin * channels, va_list properties)
{
String const * p;
gboolean b;
GtkSizeGroup * group;
unsigned int u;
gdouble value = 0.0;
size_t zu;
while((p = va_arg(properties, String const *)) != NULL)
{
if(string_compare(p, "bind") == 0)
{
b = va_arg(properties, gboolean);
_set_bind(channels, b);
}
else if(string_compare(p, "channels") == 0)
{
zu = va_arg(properties, size_t);
if(_set_channels(channels, zu) != 0)
return -1;
}
else if(string_compare(p, "delta") == 0)
{
u = va_arg(properties, unsigned int);
_set_delta(channels, u);
}
else if(string_compare(p, "mute") == 0)
{
b = va_arg(properties, gboolean);
_set_mute(channels, b);
}
else if(string_compare(p, "show-bind") == 0)
{
value = va_arg(properties, gboolean);
value ? gtk_widget_show(channels->bind)
: gtk_widget_hide(channels->bind);
}
else if(string_compare(p, "show-mute") == 0)
{
value = va_arg(properties, gboolean);
value ? gtk_widget_show(channels->mute)
: gtk_widget_hide(channels->mute);
}
else if(string_compare(p, "value") == 0)
{
value = va_arg(properties, gdouble);
_set_value(channels, value);
}
else if(sscanf(p, "value%zu", &zu) == 1)
{
value = va_arg(properties, gdouble);
_set_value_channel(channels, zu, value);
}
else if(string_compare(p, "vgroup") == 0)
{
group = va_arg(properties, GtkSizeGroup *);
gtk_size_group_add_widget(group, channels->bbox);
}
else
/* FIXME report the error */
return -1;
}
return 0;
}
static void _set_bind(MixerControlPlugin * channels, gboolean bind)
{
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(channels->bind), bind);
}
static int _set_channels(MixerControlPlugin * channels, size_t cnt)
{
size_t i;
MixerControlChannel * p;
gboolean signal = channels->signal;
/* delete channels as required */
if(channels->channels_cnt >= cnt)
{
for(i = cnt; i < channels->channels_cnt; i++)
g_object_unref(channels->channels[i].widget);
if((channels->channels_cnt = cnt) < 2)
gtk_widget_hide(channels->bind);
else
gtk_widget_show(channels->bind);
return 0;
}
if((p = realloc(channels->channels, sizeof(*p) * cnt)) == NULL)
return -1;
channels->channels = p;
channels->signal = TRUE;
for(i = channels->channels_cnt; i < cnt; i++)
{
p = &channels->channels[i];
p->plugin = channels;
p->widget = gtk_scale_new_with_range(GTK_ORIENTATION_VERTICAL,
0.0, 100.0, channels->delta);
gtk_range_set_inverted(GTK_RANGE(p->widget), TRUE);
gtk_range_set_value(GTK_RANGE(p->widget), 0.0);
g_signal_connect(p->widget, "value-changed", G_CALLBACK(
_channels_on_changed), p);
gtk_box_pack_start(GTK_BOX(channels->hbox), p->widget, TRUE,
TRUE, 0);
}
channels->signal = signal;
if((channels->channels_cnt = cnt) < 2)
gtk_widget_hide(channels->bind);
else
gtk_widget_show(channels->bind);
return 0;
}
static void _set_delta(MixerControlPlugin * channels, unsigned int delta)
{
size_t i;
channels->delta = delta;
for(i = 0; i < channels->channels_cnt; i++)
gtk_range_set_increments(
GTK_RANGE(channels->channels[i].widget), delta,
delta);
}
static void _set_mute(MixerControlPlugin * channels, gboolean mute)
{
# if GTK_CHECK_VERSION(3, 0, 0)
gtk_switch_set_active(GTK_SWITCH(channels->mute), mute);
#else
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(channels->mute), mute);
#endif
}
static void _set_value(MixerControlPlugin * channels, gdouble value)
{
size_t i;
for(i = 0; i < channels->channels_cnt; i++)
_set_value_channel(channels, i, value);
}
static void _set_value_channel(MixerControlPlugin * channels,
size_t channel, gdouble value)
{
gboolean signal;
if(channel >= channels->channels_cnt)
return;
signal = channels->signal;
channels->signal = TRUE;
gtk_range_set_value(GTK_RANGE(channels->channels[channel].widget),
value);
channels->signal = signal;
}
/* callbacks */
/* channels_on_bind_toggled */
static void _channels_on_bind_toggled(gpointer data)
{
MixerControlPlugin * channels = data;
gboolean active;
active = gtk_toggle_button_get_active(
GTK_TOGGLE_BUTTON(channels->bind));
gtk_image_set_from_icon_name(GTK_IMAGE(channels->bind_image),
active ? "gtk-connect" : "gtk-disconnect",
GTK_ICON_SIZE_BUTTON);
}
/* channels_on_changed */
static void _channels_on_changed(GtkWidget * widget, gpointer data)
{
MixerControlChannel * channel = data;
MixerControlPlugin * channels = channel->plugin;
gdouble value;
size_t i;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
if(channels->signal == TRUE)
return;
channels->signal = TRUE;
if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(channels->bind)))
{
value = gtk_range_get_value(GTK_RANGE(widget));
if(channels->bind)
for(i = 0; i < channels->channels_cnt; i++)
{
widget = channels->channels[i].widget;
gtk_range_set_value(GTK_RANGE(widget), value);
}
}
channels->helper->mixercontrol_set(channels->helper->control);
channels->signal = FALSE;
}
#if GTK_CHECK_VERSION(3, 0, 0)
/* channels_on_mute_notify_active */
static void _channels_on_mute_notify_active(gpointer data)
{
MixerControlPlugin * channels = data;
channels->helper->mixercontrol_set(channels->helper->control);
}
#else
/* channels_on_mute_toggled */
static void _channels_on_mute_toggled(gpointer data)
{
MixerControlPlugin * channels = data;
gboolean active;
active = gtk_toggle_button_get_active(
GTK_TOGGLE_BUTTON(channels->mute));
gtk_image_set_from_icon_name(GTK_IMAGE(channels->mute_image),
active ? "audio-volume-muted" : "audio-volume-high",
GTK_ICON_SIZE_BUTTON);
channels->helper->mixercontrol_set(channels->helper->control);
}
#endif