From ae1c76ff830d146d41e88d6fba724c0a54bce868 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:45:20 +0200 Subject: Adding upstream version 1:43.6. Signed-off-by: Daniel Baumann --- panels/sound/cc-balance-slider.c | 119 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 panels/sound/cc-balance-slider.c (limited to 'panels/sound/cc-balance-slider.c') diff --git a/panels/sound/cc-balance-slider.c b/panels/sound/cc-balance-slider.c new file mode 100644 index 0000000..7cb8a04 --- /dev/null +++ b/panels/sound/cc-balance-slider.c @@ -0,0 +1,119 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- + * + * Copyright (C) 2018 Canonical Ltd. + * + * 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 . + */ + +#include "cc-sound-resources.h" +#include "cc-balance-slider.h" +#include "gvc-channel-map-private.h" + +struct _CcBalanceSlider +{ + GtkBox parent_instance; + + GtkAdjustment *adjustment; + + GvcChannelMap *channel_map; + guint volume_changed_handler_id; +}; + +G_DEFINE_TYPE (CcBalanceSlider, cc_balance_slider, GTK_TYPE_BOX) + +static void +changed_cb (CcBalanceSlider *self) +{ + gdouble value; + const pa_channel_map *pa_map; + pa_cvolume pa_volume; + + if (self->channel_map == NULL) + return; + + value = gtk_adjustment_get_value (self->adjustment); + pa_map = gvc_channel_map_get_pa_channel_map (self->channel_map); + pa_volume = *gvc_channel_map_get_cvolume (self->channel_map); + pa_cvolume_set_balance (&pa_volume, pa_map, value); + gvc_channel_map_volume_changed (self->channel_map, &pa_volume, TRUE); +} + +static void +volume_changed_cb (CcBalanceSlider *self) +{ + const gdouble *volumes; + + volumes = gvc_channel_map_get_volume (self->channel_map); + g_signal_handlers_block_by_func (self->adjustment, volume_changed_cb, self); + gtk_adjustment_set_value (self->adjustment, volumes[BALANCE]); + g_signal_handlers_unblock_by_func (self->adjustment, volume_changed_cb, self); +} + +static void +cc_balance_slider_dispose (GObject *object) +{ + CcBalanceSlider *self = CC_BALANCE_SLIDER (object); + + g_clear_object (&self->channel_map); + + G_OBJECT_CLASS (cc_balance_slider_parent_class)->dispose (object); +} + +void +cc_balance_slider_class_init (CcBalanceSliderClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + + object_class->dispose = cc_balance_slider_dispose; + + gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/control-center/sound/cc-balance-slider.ui"); + + gtk_widget_class_bind_template_child (widget_class, CcBalanceSlider, adjustment); + + gtk_widget_class_bind_template_callback (widget_class, changed_cb); +} + +void +cc_balance_slider_init (CcBalanceSlider *self) +{ + g_resources_register (cc_sound_get_resource ()); + + gtk_widget_init_template (GTK_WIDGET (self)); +} + +void +cc_balance_slider_set_channel_map (CcBalanceSlider *self, + GvcChannelMap *channel_map) +{ + g_return_if_fail (CC_IS_BALANCE_SLIDER (self)); + + if (self->channel_map != NULL) + { + g_signal_handler_disconnect (self->channel_map, self->volume_changed_handler_id); + self->volume_changed_handler_id = 0; + } + g_clear_object (&self->channel_map); + + if (channel_map != NULL) + { + self->channel_map = g_object_ref (channel_map); + + self->volume_changed_handler_id = g_signal_connect_object (channel_map, + "volume-changed", + G_CALLBACK (volume_changed_cb), + self, G_CONNECT_SWAPPED); + volume_changed_cb (self); + } +} -- cgit v1.2.3