| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (C) 2018 Canonical Ltd. | ||
| 3 | * | ||
| 4 | * This program is free software; you can redistribute it and/or | ||
| 5 | * modify it under the terms of the GNU General Public License as | ||
| 6 | * published by the Free Software Foundation; either version 2 of the | ||
| 7 | * License, or (at your option) any later version. | ||
| 8 | * | ||
| 9 | * This program is distributed in the hope that it will be useful, but | ||
| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 12 | * Lesser General Public License for more details. | ||
| 13 | * | ||
| 14 | * You should have received a copy of the GNU General Public License | ||
| 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | ||
| 16 | */ | ||
| 17 | |||
| 18 | #include "cc-sound-resources.h" | ||
| 19 | #include "cc-balance-slider.h" | ||
| 20 | #include "gvc-channel-map-private.h" | ||
| 21 | |||
| 22 | struct _CcBalanceSlider | ||
| 23 | { | ||
| 24 | GtkWidget parent_instance; | ||
| 25 | |||
| 26 | GtkWidget *scale; | ||
| 27 | GtkAdjustment *adjustment; | ||
| 28 | |||
| 29 | GvcChannelMap *channel_map; | ||
| 30 | guint volume_changed_handler_id; | ||
| 31 | }; | ||
| 32 | |||
| 33 | ✗ | G_DEFINE_TYPE (CcBalanceSlider, cc_balance_slider, GTK_TYPE_WIDGET) | |
| 34 | |||
| 35 | static void | ||
| 36 | ✗ | changed_cb (CcBalanceSlider *self) | |
| 37 | { | ||
| 38 | gdouble value; | ||
| 39 | const pa_channel_map *pa_map; | ||
| 40 | pa_cvolume pa_volume; | ||
| 41 | |||
| 42 | ✗ | if (self->channel_map == NULL) | |
| 43 | ✗ | return; | |
| 44 | |||
| 45 | ✗ | value = gtk_adjustment_get_value (self->adjustment); | |
| 46 | ✗ | pa_map = gvc_channel_map_get_pa_channel_map (self->channel_map); | |
| 47 | ✗ | pa_volume = *gvc_channel_map_get_cvolume (self->channel_map); | |
| 48 | ✗ | pa_cvolume_set_balance (&pa_volume, pa_map, value); | |
| 49 | ✗ | gvc_channel_map_volume_changed (self->channel_map, &pa_volume, TRUE); | |
| 50 | } | ||
| 51 | |||
| 52 | static void | ||
| 53 | ✗ | volume_changed_cb (CcBalanceSlider *self) | |
| 54 | { | ||
| 55 | const gdouble *volumes; | ||
| 56 | |||
| 57 | ✗ | volumes = gvc_channel_map_get_volume (self->channel_map); | |
| 58 | ✗ | g_signal_handlers_block_by_func (self->adjustment, volume_changed_cb, self); | |
| 59 | |||
| 60 | /* If close to 0, set to 0 to also snap while moving with arrow keys */ | ||
| 61 | ✗ | if (fabs (volumes[BALANCE]) < 0.01) | |
| 62 | ✗ | gtk_adjustment_set_value (self->adjustment, 0); | |
| 63 | else | ||
| 64 | ✗ | gtk_adjustment_set_value (self->adjustment, volumes[BALANCE]); | |
| 65 | |||
| 66 | ✗ | g_signal_handlers_unblock_by_func (self->adjustment, volume_changed_cb, self); | |
| 67 | ✗ | } | |
| 68 | |||
| 69 | static void | ||
| 70 | ✗ | cc_balance_slider_dispose (GObject *object) | |
| 71 | { | ||
| 72 | ✗ | CcBalanceSlider *self = CC_BALANCE_SLIDER (object); | |
| 73 | |||
| 74 | ✗ | g_clear_pointer (&self->scale, gtk_widget_unparent); | |
| 75 | |||
| 76 | ✗ | g_clear_object (&self->channel_map); | |
| 77 | |||
| 78 | ✗ | G_OBJECT_CLASS (cc_balance_slider_parent_class)->dispose (object); | |
| 79 | ✗ | } | |
| 80 | |||
| 81 | void | ||
| 82 | ✗ | cc_balance_slider_class_init (CcBalanceSliderClass *klass) | |
| 83 | { | ||
| 84 | ✗ | GObjectClass *object_class = G_OBJECT_CLASS (klass); | |
| 85 | ✗ | GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); | |
| 86 | |||
| 87 | ✗ | object_class->dispose = cc_balance_slider_dispose; | |
| 88 | |||
| 89 | ✗ | gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/control-center/sound/cc-balance-slider.ui"); | |
| 90 | |||
| 91 | ✗ | gtk_widget_class_bind_template_child (widget_class, CcBalanceSlider, scale); | |
| 92 | ✗ | gtk_widget_class_bind_template_child (widget_class, CcBalanceSlider, adjustment); | |
| 93 | |||
| 94 | ✗ | gtk_widget_class_bind_template_callback (widget_class, changed_cb); | |
| 95 | |||
| 96 | ✗ | gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT); | |
| 97 | ✗ | } | |
| 98 | |||
| 99 | void | ||
| 100 | ✗ | cc_balance_slider_init (CcBalanceSlider *self) | |
| 101 | { | ||
| 102 | ✗ | g_resources_register (cc_sound_get_resource ()); | |
| 103 | |||
| 104 | ✗ | gtk_widget_init_template (GTK_WIDGET (self)); | |
| 105 | |||
| 106 | // Don't flip the slider with RTL locale | ||
| 107 | ✗ | gtk_widget_set_direction (self->scale, GTK_TEXT_DIR_LTR); | |
| 108 | ✗ | } | |
| 109 | |||
| 110 | void | ||
| 111 | ✗ | cc_balance_slider_set_channel_map (CcBalanceSlider *self, | |
| 112 | GvcChannelMap *channel_map) | ||
| 113 | { | ||
| 114 | ✗ | g_return_if_fail (CC_IS_BALANCE_SLIDER (self)); | |
| 115 | |||
| 116 | ✗ | if (self->channel_map != NULL) | |
| 117 | { | ||
| 118 | ✗ | g_signal_handler_disconnect (self->channel_map, self->volume_changed_handler_id); | |
| 119 | ✗ | self->volume_changed_handler_id = 0; | |
| 120 | } | ||
| 121 | ✗ | g_clear_object (&self->channel_map); | |
| 122 | |||
| 123 | ✗ | if (channel_map != NULL) | |
| 124 | { | ||
| 125 | ✗ | self->channel_map = g_object_ref (channel_map); | |
| 126 | |||
| 127 | ✗ | self->volume_changed_handler_id = g_signal_connect_object (channel_map, | |
| 128 | "volume-changed", | ||
| 129 | G_CALLBACK (volume_changed_cb), | ||
| 130 | self, G_CONNECT_SWAPPED); | ||
| 131 | ✗ | volume_changed_cb (self); | |
| 132 | } | ||
| 133 | } | ||
| 134 |