gnome-control-center/panels/sound/cc-output-test-wheel.c
Marco Melorio fc3580f2f2 sound: Fix warning about missing measure in output test
Just measure the label to make GTK not complain about allocating
children without measuring anything. Measuring all the buttons is an
overkill because we expect this widget to have the minimum size
overwritten by CSS either way.
2023-01-27 17:46:58 +00:00

261 lines
12 KiB
C

/*
* Copyright (C) 2018 Canonical Ltd.
* Copyright (C) 2022 Marco Melorio
*
* 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 of the
* License, 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
* Lesser 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/>.
*/
#include <glib/gi18n.h>
#include "cc-speaker-test-button.h"
#include "cc-output-test-wheel.h"
struct _CcOutputTestWheel
{
GtkWidget parent_instance;
GtkWidget *label;
CcSpeakerTestButton *front_center_speaker_button;
CcSpeakerTestButton *front_left_speaker_button;
CcSpeakerTestButton *front_left_of_center_speaker_button;
CcSpeakerTestButton *front_right_of_center_speaker_button;
CcSpeakerTestButton *front_right_speaker_button;
CcSpeakerTestButton *lfe_speaker_button;
CcSpeakerTestButton *rear_center_speaker_button;
CcSpeakerTestButton *rear_left_speaker_button;
CcSpeakerTestButton *rear_right_speaker_button;
CcSpeakerTestButton *side_left_speaker_button;
CcSpeakerTestButton *side_right_speaker_button;
GSoundContext *context;
};
G_DEFINE_TYPE (CcOutputTestWheel, cc_output_test_wheel, GTK_TYPE_WIDGET)
static void
load_custom_css (CcOutputTestWheel *self)
{
g_autoptr(GtkCssProvider) provider = NULL;
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_resource (provider, "/org/gnome/control-center/sound/output-test-wheel.css");
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
static CcSpeakerTestButton*
create_speaker_button (CcOutputTestWheel *self,
pa_channel_position_t position)
{
CcSpeakerTestButton *button;
button = cc_speaker_test_button_new (self->context, position);
gtk_widget_add_css_class (GTK_WIDGET (button), "circular");
gtk_widget_add_css_class (GTK_WIDGET (button), "opaque");
gtk_widget_set_parent (GTK_WIDGET (button), GTK_WIDGET (self));
return button;
}
static void
allocate_speaker_button (CcSpeakerTestButton *button,
int width,
int height,
double angle)
{
double rad, norm_x, norm_y;
GtkRequisition nat;
GtkAllocation allocation;
rad = angle * G_PI / 180;
norm_x = -(cos(rad) - 1) / 2;
norm_y = -(sin(rad) - 1) / 2;
gtk_widget_get_preferred_size (GTK_WIDGET (button), NULL, &nat);
allocation.width = nat.width;
allocation.height = nat.height;
allocation.x = (norm_x * width) - (allocation.width / 2);
allocation.y = (norm_y * height) - (allocation.height / 2);
gtk_widget_size_allocate (GTK_WIDGET (button), &allocation, -1);
}
static void
cc_output_test_wheel_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
CcOutputTestWheel *self = CC_OUTPUT_TEST_WHEEL (widget);
/* Just measure the label to make GTK not complain about allocating children
* without measuring anything. Measuring all the buttons is an overkill
* because we expect this widget to have the minimum size overwritten by CSS
* either way.
*/
gtk_widget_measure (self->label, orientation, for_size,
minimum, natural, NULL, NULL);
}
static void
cc_output_test_wheel_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
CcOutputTestWheel *self = CC_OUTPUT_TEST_WHEEL (widget);
GtkAllocation allocation;
GtkRequisition natural_size;
gtk_widget_allocate (self->label, width, height, baseline, NULL);
allocate_speaker_button (self->side_left_speaker_button, width, height, 0);
allocate_speaker_button (self->front_left_speaker_button, width, height, 45);
allocate_speaker_button (self->front_left_of_center_speaker_button, width, height, 67.5);
allocate_speaker_button (self->front_center_speaker_button, width, height, 90);
allocate_speaker_button (self->front_right_of_center_speaker_button, width, height, 112.5);
allocate_speaker_button (self->front_right_speaker_button, width, height, 135);
allocate_speaker_button (self->side_right_speaker_button, width, height, 180);
allocate_speaker_button (self->rear_right_speaker_button, width, height, 225);
allocate_speaker_button (self->rear_center_speaker_button, width, height, 270);
allocate_speaker_button (self->rear_left_speaker_button, width, height, 315);
gtk_widget_get_preferred_size(GTK_WIDGET (self->lfe_speaker_button), NULL, &natural_size);
allocation.width = natural_size.width;
allocation.height = natural_size.height;
allocation.x = (width / 2) - (allocation.width / 2);
allocation.y = (height * 0.2) - (allocation.height / 2);
gtk_widget_size_allocate (GTK_WIDGET (self->lfe_speaker_button), &allocation, -1);
}
static void
cc_output_test_wheel_dispose (GObject *object)
{
CcOutputTestWheel *self = CC_OUTPUT_TEST_WHEEL (object);
g_clear_pointer (&self->label, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->front_center_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->front_left_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->front_left_of_center_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->front_right_of_center_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->front_right_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->lfe_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->rear_center_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->rear_left_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->rear_right_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->side_left_speaker_button, gtk_widget_unparent);
g_clear_pointer ((GtkWidget**) &self->side_right_speaker_button, gtk_widget_unparent);
g_clear_object (&self->context);
G_OBJECT_CLASS (cc_output_test_wheel_parent_class)->dispose (object);
}
void
cc_output_test_wheel_class_init (CcOutputTestWheelClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->dispose = cc_output_test_wheel_dispose;
widget_class->measure = cc_output_test_wheel_measure;
widget_class->size_allocate = cc_output_test_wheel_size_allocate;
gtk_widget_class_set_css_name (widget_class, "wheel");
}
void
cc_output_test_wheel_init (CcOutputTestWheel *self)
{
GtkSettings *settings;
g_autofree gchar *theme_name = NULL;
self->context = gsound_context_new (NULL, NULL);
gsound_context_set_driver (self->context, "pulse", NULL);
gsound_context_set_attributes (self->context, NULL,
GSOUND_ATTR_APPLICATION_ID, "org.gnome.VolumeControl",
NULL);
settings = gtk_settings_get_for_display (gdk_display_get_default ());
g_object_get (G_OBJECT (settings),
"gtk-sound-theme-name", &theme_name,
NULL);
if (theme_name != NULL)
gsound_context_set_attributes (self->context, NULL,
GSOUND_ATTR_CANBERRA_XDG_THEME_NAME, theme_name,
NULL);
self->label = gtk_inscription_new (_("Select a Speaker"));
gtk_inscription_set_xalign (GTK_INSCRIPTION (self->label), 0.5);
gtk_widget_add_css_class (self->label, "heading");
gtk_widget_set_parent (self->label, GTK_WIDGET (self));
self->front_center_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_FRONT_CENTER);
self->front_left_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_FRONT_LEFT);
self->front_left_of_center_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER);
self->front_right_of_center_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER);
self->front_right_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_FRONT_RIGHT);
self->lfe_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_LFE);
self->rear_center_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_REAR_CENTER);
self->rear_left_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_REAR_LEFT);
self->rear_right_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_REAR_RIGHT);
self->side_left_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_SIDE_LEFT);
self->side_right_speaker_button = create_speaker_button (self, PA_CHANNEL_POSITION_SIDE_RIGHT);
load_custom_css (self);
}
void
cc_output_test_wheel_set_stream (CcOutputTestWheel *self,
GvcMixerStream *stream)
{
const GvcChannelMap *map = gvc_mixer_stream_get_channel_map (stream);
gtk_widget_set_visible (GTK_WIDGET (self->front_left_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_FRONT_LEFT));
gtk_widget_set_visible (GTK_WIDGET (self->front_left_of_center_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER));
gtk_widget_set_visible (GTK_WIDGET (self->front_right_of_center_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER));
gtk_widget_set_visible (GTK_WIDGET (self->front_right_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_FRONT_RIGHT));
gtk_widget_set_visible (GTK_WIDGET (self->lfe_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_LFE));
gtk_widget_set_visible (GTK_WIDGET (self->rear_center_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_REAR_CENTER));
gtk_widget_set_visible (GTK_WIDGET (self->rear_left_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_REAR_LEFT));
gtk_widget_set_visible (GTK_WIDGET (self->rear_right_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_REAR_RIGHT));
gtk_widget_set_visible (GTK_WIDGET (self->side_left_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_SIDE_LEFT));
gtk_widget_set_visible (GTK_WIDGET (self->side_right_speaker_button), gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_SIDE_RIGHT));
/* Replace the center channel with a mono channel */
if (gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_MONO))
{
if (gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_FRONT_CENTER))
g_warning ("Testing output with both front center and mono channels - front center is hidden");
cc_speaker_test_button_set_channel_position (self->front_center_speaker_button, PA_CHANNEL_POSITION_MONO);
gtk_widget_set_visible (GTK_WIDGET (self->front_center_speaker_button), TRUE);
}
else if (gvc_channel_map_has_position (map, PA_CHANNEL_POSITION_FRONT_CENTER))
{
cc_speaker_test_button_set_channel_position (self->front_center_speaker_button, PA_CHANNEL_POSITION_FRONT_CENTER);
gtk_widget_set_visible (GTK_WIDGET (self->front_center_speaker_button), TRUE);
}
else
{
gtk_widget_set_visible (GTK_WIDGET (self->front_center_speaker_button), FALSE);
}
}