/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- * * Copyright (C) 2008 William Jon McCann * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * */ #include "config.h" #include #include #include #include #include #include #include #include #include "gvc-channel-bar.h" #define SCALE_SIZE 128 #define ADJUSTMENT_MAX_NORMAL 65536.0 /* PA_VOLUME_NORM */ #define ADJUSTMENT_MAX_AMPLIFIED 98304.0 /* 1.5 * ADJUSTMENT_MAX_NORMAL */ #define ADJUSTMENT_MAX (bar->priv->is_amplified ? ADJUSTMENT_MAX_AMPLIFIED : ADJUSTMENT_MAX_NORMAL) #define SCROLLSTEP (ADJUSTMENT_MAX / 100.0 * 5.0) #define GVC_CHANNEL_BAR_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GVC_TYPE_CHANNEL_BAR, GvcChannelBarPrivate)) struct GvcChannelBarPrivate { GtkOrientation orientation; GtkWidget *scale_box; GtkWidget *start_box; GtkWidget *end_box; GtkWidget *image; GtkWidget *label; GtkWidget *low_image; GtkWidget *scale; GtkWidget *high_image; GtkWidget *mute_box; GtkWidget *mute_button; GtkAdjustment *adjustment; GtkAdjustment *zero_adjustment; gboolean show_mute; gboolean is_muted; char *name; char *icon_name; char *low_icon_name; char *high_icon_name; GtkSizeGroup *size_group; gboolean symmetric; gboolean click_lock; gboolean is_amplified; guint32 base_volume; }; enum { PROP_0, PROP_ORIENTATION, PROP_SHOW_MUTE, PROP_IS_MUTED, PROP_ADJUSTMENT, PROP_NAME, PROP_ICON_NAME, PROP_LOW_ICON_NAME, PROP_HIGH_ICON_NAME, PROP_IS_AMPLIFIED, }; static void gvc_channel_bar_class_init (GvcChannelBarClass *klass); static void gvc_channel_bar_init (GvcChannelBar *channel_bar); static void gvc_channel_bar_finalize (GObject *object); static gboolean on_scale_button_press_event (GtkWidget *widget, GdkEventButton *event, GvcChannelBar *bar); static gboolean on_scale_button_release_event (GtkWidget *widget, GdkEventButton *event, GvcChannelBar *bar); static gboolean on_scale_scroll_event (GtkWidget *widget, GdkEventScroll *event, GvcChannelBar *bar); #if GTK_CHECK_VERSION (3, 0, 0) G_DEFINE_TYPE (GvcChannelBar, gvc_channel_bar, GTK_TYPE_BOX) #else G_DEFINE_TYPE (GvcChannelBar, gvc_channel_bar, GTK_TYPE_HBOX) #endif static GtkWidget * _scale_box_new (GvcChannelBar *bar) { GvcChannelBarPrivate *priv = bar->priv; GtkWidget *box; GtkWidget *sbox; GtkWidget *ebox; if (priv->orientation == GTK_ORIENTATION_VERTICAL) { bar->priv->scale_box = box = gtk_vbox_new (FALSE, 6); priv->scale = gtk_vscale_new (priv->adjustment); gtk_widget_set_size_request (priv->scale, -1, SCALE_SIZE); gtk_range_set_inverted (GTK_RANGE (priv->scale), TRUE); bar->priv->start_box = sbox = gtk_vbox_new (FALSE, 6); gtk_box_pack_start (GTK_BOX (box), sbox, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (sbox), priv->image, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (sbox), priv->label, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (sbox), priv->high_image, FALSE, FALSE, 0); gtk_widget_hide (priv->high_image); gtk_box_pack_start (GTK_BOX (box), priv->scale, TRUE, TRUE, 0); bar->priv->end_box = ebox = gtk_vbox_new (FALSE, 6); gtk_box_pack_start (GTK_BOX (box), ebox, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (ebox), priv->low_image, FALSE, FALSE, 0); gtk_widget_hide (priv->low_image); gtk_box_pack_start (GTK_BOX (ebox), priv->mute_box, FALSE, FALSE, 0); } else { bar->priv->scale_box = box = gtk_hbox_new (FALSE, 6); priv->scale = gtk_hscale_new (priv->adjustment); gtk_widget_set_size_request (priv->scale, SCALE_SIZE, -1); bar->priv->start_box = sbox = gtk_hbox_new (FALSE, 6); gtk_box_pack_start (GTK_BOX (box), sbox, FALSE, FALSE, 0); gtk_box_pack_end (GTK_BOX (sbox), priv->low_image, FALSE, FALSE, 0); gtk_widget_show (priv->low_image); gtk_box_pack_start (GTK_BOX (sbox), priv->image, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (sbox), priv->label, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (box), priv->scale, TRUE, TRUE, 0); bar->priv->end_box = ebox = gtk_hbox_new (FALSE, 6); gtk_box_pack_start (GTK_BOX (box), ebox, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (ebox), priv->high_image, FALSE, FALSE, 0); gtk_widget_show (priv->high_image); gtk_box_pack_start (GTK_BOX (ebox), priv->mute_box, FALSE, FALSE, 0); } #if !GTK_CHECK_VERSION (3, 0, 0) gtk_range_set_update_policy (GTK_RANGE (priv->scale), GTK_UPDATE_CONTINUOUS); #endif ca_gtk_widget_disable_sounds (bar->priv->scale, FALSE); gtk_widget_add_events (bar->priv->scale, GDK_SCROLL_MASK); g_signal_connect (G_OBJECT (bar->priv->scale), "button-press-event", G_CALLBACK (on_scale_button_press_event), bar); g_signal_connect (G_OBJECT (bar->priv->scale), "button-release-event", G_CALLBACK (on_scale_button_release_event), bar); g_signal_connect (G_OBJECT (bar->priv->scale), "scroll-event", G_CALLBACK (on_scale_scroll_event), bar); if (bar->priv->size_group != NULL) { gtk_size_group_add_widget (bar->priv->size_group, sbox); if (bar->priv->symmetric) { gtk_size_group_add_widget (bar->priv->size_group, ebox); } } gtk_scale_set_draw_value (GTK_SCALE (priv->scale), FALSE); return box; } static void update_image (GvcChannelBar *bar) { gtk_image_set_from_icon_name (GTK_IMAGE (bar->priv->image), bar->priv->icon_name, GTK_ICON_SIZE_DIALOG); if (bar->priv->icon_name != NULL) { gtk_widget_show (bar->priv->image); } else { gtk_widget_hide (bar->priv->image); } } static void update_label (GvcChannelBar *bar) { if (bar->priv->name != NULL) { gtk_label_set_text_with_mnemonic (GTK_LABEL (bar->priv->label), bar->priv->name); gtk_label_set_mnemonic_widget (GTK_LABEL (bar->priv->label), bar->priv->scale); gtk_widget_show (bar->priv->label); } else { gtk_label_set_text (GTK_LABEL (bar->priv->label), NULL); gtk_widget_hide (bar->priv->label); } } static void update_layout (GvcChannelBar *bar) { GtkWidget *box; GtkWidget *frame; if (bar->priv->scale == NULL) { return; } box = bar->priv->scale_box; frame = gtk_widget_get_parent (box); g_object_ref (bar->priv->image); g_object_ref (bar->priv->label); g_object_ref (bar->priv->mute_box); g_object_ref (bar->priv->low_image); g_object_ref (bar->priv->high_image); gtk_container_remove (GTK_CONTAINER (bar->priv->start_box), bar->priv->image); gtk_container_remove (GTK_CONTAINER (bar->priv->start_box), bar->priv->label); gtk_container_remove (GTK_CONTAINER (bar->priv->end_box), bar->priv->mute_box); if (bar->priv->orientation == GTK_ORIENTATION_VERTICAL) { gtk_container_remove (GTK_CONTAINER (bar->priv->start_box), bar->priv->low_image); gtk_container_remove (GTK_CONTAINER (bar->priv->end_box), bar->priv->high_image); } else { gtk_container_remove (GTK_CONTAINER (bar->priv->end_box), bar->priv->low_image); gtk_container_remove (GTK_CONTAINER (bar->priv->start_box), bar->priv->high_image); } gtk_container_remove (GTK_CONTAINER (box), bar->priv->start_box); gtk_container_remove (GTK_CONTAINER (box), bar->priv->scale); gtk_container_remove (GTK_CONTAINER (box), bar->priv->end_box); gtk_container_remove (GTK_CONTAINER (frame), box); bar->priv->scale_box = _scale_box_new (bar); gtk_container_add (GTK_CONTAINER (frame), bar->priv->scale_box); g_object_unref (bar->priv->image); g_object_unref (bar->priv->label); g_object_unref (bar->priv->mute_box); g_object_unref (bar->priv->low_image); g_object_unref (bar->priv->high_image); gtk_widget_show_all (frame); } void gvc_channel_bar_set_size_group (GvcChannelBar *bar, GtkSizeGroup *group, gboolean symmetric) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); bar->priv->size_group = group; bar->priv->symmetric = symmetric; if (bar->priv->size_group != NULL) { gtk_size_group_add_widget (bar->priv->size_group, bar->priv->start_box); if (bar->priv->symmetric) { gtk_size_group_add_widget (bar->priv->size_group, bar->priv->end_box); } } gtk_widget_queue_draw (GTK_WIDGET (bar)); } void gvc_channel_bar_set_name (GvcChannelBar *bar, const char *name) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); g_free (bar->priv->name); bar->priv->name = g_strdup (name); update_label (bar); g_object_notify (G_OBJECT (bar), "name"); } void gvc_channel_bar_set_icon_name (GvcChannelBar *bar, const char *name) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); g_free (bar->priv->icon_name); bar->priv->icon_name = g_strdup (name); update_image (bar); g_object_notify (G_OBJECT (bar), "icon-name"); } void gvc_channel_bar_set_low_icon_name (GvcChannelBar *bar, const char *name) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); if (name != NULL && strcmp (bar->priv->low_icon_name, name) != 0) { g_free (bar->priv->low_icon_name); bar->priv->low_icon_name = g_strdup (name); gtk_image_set_from_icon_name (GTK_IMAGE (bar->priv->low_image), bar->priv->low_icon_name, GTK_ICON_SIZE_BUTTON); g_object_notify (G_OBJECT (bar), "low-icon-name"); } } void gvc_channel_bar_set_high_icon_name (GvcChannelBar *bar, const char *name) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); if (name != NULL && strcmp (bar->priv->high_icon_name, name) != 0) { g_free (bar->priv->high_icon_name); bar->priv->high_icon_name = g_strdup (name); gtk_image_set_from_icon_name (GTK_IMAGE (bar->priv->high_image), bar->priv->high_icon_name, GTK_ICON_SIZE_BUTTON); g_object_notify (G_OBJECT (bar), "high-icon-name"); } } void gvc_channel_bar_set_orientation (GvcChannelBar *bar, GtkOrientation orientation) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); if (orientation != bar->priv->orientation) { bar->priv->orientation = orientation; update_layout (bar); g_object_notify (G_OBJECT (bar), "orientation"); } } static void gvc_channel_bar_set_adjustment (GvcChannelBar *bar, GtkAdjustment *adjustment) { g_return_if_fail (GVC_CHANNEL_BAR (bar)); g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment)); if (bar->priv->adjustment != NULL) { g_object_unref (bar->priv->adjustment); } bar->priv->adjustment = g_object_ref_sink (adjustment); if (bar->priv->scale != NULL) { gtk_range_set_adjustment (GTK_RANGE (bar->priv->scale), adjustment); } g_object_notify (G_OBJECT (bar), "adjustment"); } GtkAdjustment * gvc_channel_bar_get_adjustment (GvcChannelBar *bar) { g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), NULL); return bar->priv->adjustment; } static gboolean on_scale_button_press_event (GtkWidget *widget, GdkEventButton *event, GvcChannelBar *bar) { /* HACK: we want the behaviour you get with the middle button, so we * mangle the event. clicking with other buttons moves the slider in * step increments, clicking with the middle button moves the slider to * the location of the click. */ if (event->button == 1) event->button = 2; bar->priv->click_lock = TRUE; return FALSE; } static gboolean on_scale_button_release_event (GtkWidget *widget, GdkEventButton *event, GvcChannelBar *bar) { GtkAdjustment *adj; gdouble value; /* HACK: see on_scale_button_press_event() */ if (event->button == 1) event->button = 2; bar->priv->click_lock = FALSE; adj = gtk_range_get_adjustment (GTK_RANGE (widget)); value = gtk_adjustment_get_value (adj); /* this means the adjustment moved away from zero and * therefore we should unmute and set the volume. */ gvc_channel_bar_set_is_muted (bar, (value == 0.0)); /* Play a sound! */ ca_gtk_play_for_widget (GTK_WIDGET (bar), 0, CA_PROP_EVENT_ID, "audio-volume-change", CA_PROP_EVENT_DESCRIPTION, "foobar event happened", CA_PROP_APPLICATION_ID, "org.mate.VolumeControl", NULL); return FALSE; } gboolean gvc_channel_bar_scroll (GvcChannelBar *bar, GdkScrollDirection direction) { GtkAdjustment *adj; gdouble value; g_return_val_if_fail (bar != NULL, FALSE); g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), FALSE); if (bar->priv->orientation == GTK_ORIENTATION_VERTICAL) { if (direction != GDK_SCROLL_UP && direction != GDK_SCROLL_DOWN) return FALSE; } else { /* Switch direction for RTL */ if (gtk_widget_get_direction (GTK_WIDGET (bar)) == GTK_TEXT_DIR_RTL) { if (direction == GDK_SCROLL_RIGHT) direction = GDK_SCROLL_LEFT; else if (direction == GDK_SCROLL_LEFT) direction = GDK_SCROLL_RIGHT; } /* Switch side scroll to vertical */ if (direction == GDK_SCROLL_RIGHT) direction = GDK_SCROLL_UP; else if (direction == GDK_SCROLL_LEFT) direction = GDK_SCROLL_DOWN; } adj = gtk_range_get_adjustment (GTK_RANGE (bar->priv->scale)); if (adj == bar->priv->zero_adjustment) { if (direction == GDK_SCROLL_UP) gvc_channel_bar_set_is_muted (bar, FALSE); return TRUE; } value = gtk_adjustment_get_value (adj); if (direction == GDK_SCROLL_UP) { if (value + SCROLLSTEP > ADJUSTMENT_MAX) value = ADJUSTMENT_MAX; else value = value + SCROLLSTEP; } else if (direction == GDK_SCROLL_DOWN) { if (value - SCROLLSTEP < 0) value = 0.0; else value = value - SCROLLSTEP; } gvc_channel_bar_set_is_muted (bar, (value == 0.0)); adj = gtk_range_get_adjustment (GTK_RANGE (bar->priv->scale)); gtk_adjustment_set_value (adj, value); return TRUE; } static gboolean on_scale_scroll_event (GtkWidget *widget, GdkEventScroll *event, GvcChannelBar *bar) { return gvc_channel_bar_scroll (bar, event->direction); } static void on_zero_adjustment_value_changed (GtkAdjustment *adjustment, GvcChannelBar *bar) { gdouble value; if (bar->priv->click_lock != FALSE) { return; } value = gtk_adjustment_get_value (bar->priv->zero_adjustment); gtk_adjustment_set_value (bar->priv->adjustment, value); if (bar->priv->show_mute == FALSE) { /* this means the adjustment moved away from zero and * therefore we should unmute and set the volume. */ gvc_channel_bar_set_is_muted (bar, value > 0.0); } } static void update_mute_button (GvcChannelBar *bar) { if (bar->priv->show_mute) { gtk_widget_show (bar->priv->mute_button); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (bar->priv->mute_button), bar->priv->is_muted); } else { gtk_widget_hide (bar->priv->mute_button); if (bar->priv->is_muted) { /* If we aren't showing the mute button then * move slider to the zero. But we don't want to * change the adjustment. */ g_signal_handlers_block_by_func (bar->priv->zero_adjustment, on_zero_adjustment_value_changed, bar); gtk_adjustment_set_value (bar->priv->zero_adjustment, 0); g_signal_handlers_unblock_by_func (bar->priv->zero_adjustment, on_zero_adjustment_value_changed, bar); gtk_range_set_adjustment (GTK_RANGE (bar->priv->scale), bar->priv->zero_adjustment); } else { /* no longer muted so restore the original adjustment * and tell the front-end that the value changed */ gtk_range_set_adjustment (GTK_RANGE (bar->priv->scale), bar->priv->adjustment); gtk_adjustment_value_changed (bar->priv->adjustment); } } } void gvc_channel_bar_set_is_muted (GvcChannelBar *bar, gboolean is_muted) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); if (is_muted != bar->priv->is_muted) { /* Update our internal state before telling the * front-end about our changes */ bar->priv->is_muted = is_muted; update_mute_button (bar); g_object_notify (G_OBJECT (bar), "is-muted"); } } gboolean gvc_channel_bar_get_is_muted (GvcChannelBar *bar) { g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), FALSE); return bar->priv->is_muted; } void gvc_channel_bar_set_show_mute (GvcChannelBar *bar, gboolean show_mute) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); if (show_mute != bar->priv->show_mute) { bar->priv->show_mute = show_mute; g_object_notify (G_OBJECT (bar), "show-mute"); update_mute_button (bar); } } gboolean gvc_channel_bar_get_show_mute (GvcChannelBar *bar) { g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), FALSE); return bar->priv->show_mute; } void gvc_channel_bar_set_is_amplified (GvcChannelBar *bar, gboolean amplified) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); bar->priv->is_amplified = amplified; gtk_adjustment_set_upper (bar->priv->adjustment, ADJUSTMENT_MAX); gtk_adjustment_set_upper (bar->priv->zero_adjustment, ADJUSTMENT_MAX); gtk_scale_clear_marks (GTK_SCALE (bar->priv->scale)); if (amplified) { char *str; if (bar->priv->base_volume == ADJUSTMENT_MAX_NORMAL) { str = g_strdup_printf ("%s", C_("volume", "100%")); gtk_scale_add_mark (GTK_SCALE (bar->priv->scale), ADJUSTMENT_MAX_NORMAL, GTK_POS_BOTTOM, str); } else { str = g_strdup_printf ("%s", C_("volume", "Unamplified")); gtk_scale_add_mark (GTK_SCALE (bar->priv->scale), bar->priv->base_volume, GTK_POS_BOTTOM, str); /* Only show 100% if it's higher than the base volume */ if (bar->priv->base_volume < ADJUSTMENT_MAX_NORMAL) { str = g_strdup_printf ("%s", C_("volume", "100%")); gtk_scale_add_mark (GTK_SCALE (bar->priv->scale), ADJUSTMENT_MAX_NORMAL, GTK_POS_BOTTOM, str); } } g_free (str); gtk_alignment_set (GTK_ALIGNMENT (bar->priv->mute_box), 0.5, 0, 0, 0); gtk_misc_set_alignment (GTK_MISC (bar->priv->low_image), 0.5, 0); gtk_misc_set_alignment (GTK_MISC (bar->priv->high_image), 0.5, 0); gtk_misc_set_alignment (GTK_MISC (bar->priv->label), 0, 0); } else { gtk_alignment_set (GTK_ALIGNMENT (bar->priv->mute_box), 0.5, 0.5, 0, 0); gtk_misc_set_alignment (GTK_MISC (bar->priv->low_image), 0.5, 0.5); gtk_misc_set_alignment (GTK_MISC (bar->priv->high_image), 0.5, 0.5); gtk_misc_set_alignment (GTK_MISC (bar->priv->label), 0, 0.5); } } void gvc_channel_bar_set_base_volume (GvcChannelBar *bar, pa_volume_t base_volume) { g_return_if_fail (GVC_IS_CHANNEL_BAR (bar)); if (base_volume == 0) { bar->priv->base_volume = ADJUSTMENT_MAX_NORMAL; return; } /* Note that you need to call _is_amplified() afterwards to update the marks */ bar->priv->base_volume = base_volume; } static void gvc_channel_bar_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GvcChannelBar *self = GVC_CHANNEL_BAR (object); switch (prop_id) { case PROP_ORIENTATION: gvc_channel_bar_set_orientation (self, g_value_get_enum (value)); break; case PROP_IS_MUTED: gvc_channel_bar_set_is_muted (self, g_value_get_boolean (value)); break; case PROP_SHOW_MUTE: gvc_channel_bar_set_show_mute (self, g_value_get_boolean (value)); break; case PROP_NAME: gvc_channel_bar_set_name (self, g_value_get_string (value)); break; case PROP_ICON_NAME: gvc_channel_bar_set_icon_name (self, g_value_get_string (value)); break; case PROP_LOW_ICON_NAME: gvc_channel_bar_set_low_icon_name (self, g_value_get_string (value)); break; case PROP_HIGH_ICON_NAME: gvc_channel_bar_set_high_icon_name (self, g_value_get_string (value)); break; case PROP_ADJUSTMENT: gvc_channel_bar_set_adjustment (self, g_value_get_object (value)); break; case PROP_IS_AMPLIFIED: gvc_channel_bar_set_is_amplified (self, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gvc_channel_bar_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GvcChannelBar *self = GVC_CHANNEL_BAR (object); GvcChannelBarPrivate *priv = self->priv; switch (prop_id) { case PROP_ORIENTATION: g_value_set_enum (value, priv->orientation); break; case PROP_IS_MUTED: g_value_set_boolean (value, priv->is_muted); break; case PROP_SHOW_MUTE: g_value_set_boolean (value, priv->show_mute); break; case PROP_NAME: g_value_set_string (value, priv->name); break; case PROP_ICON_NAME: g_value_set_string (value, priv->icon_name); break; case PROP_LOW_ICON_NAME: g_value_set_string (value, priv->low_icon_name); break; case PROP_HIGH_ICON_NAME: g_value_set_string (value, priv->high_icon_name); break; case PROP_ADJUSTMENT: g_value_set_object (value, gvc_channel_bar_get_adjustment (self)); break; case PROP_IS_AMPLIFIED: g_value_set_boolean (value, priv->is_amplified); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static GObject * gvc_channel_bar_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_params) { GObject *object; GvcChannelBar *self; object = G_OBJECT_CLASS (gvc_channel_bar_parent_class)->constructor (type, n_construct_properties, construct_params); self = GVC_CHANNEL_BAR (object); update_mute_button (self); return object; } static void gvc_channel_bar_class_init (GvcChannelBarClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->constructor = gvc_channel_bar_constructor; object_class->finalize = gvc_channel_bar_finalize; object_class->set_property = gvc_channel_bar_set_property; object_class->get_property = gvc_channel_bar_get_property; g_object_class_install_property (object_class, PROP_ORIENTATION, g_param_spec_enum ("orientation", "Orientation", "The orientation of the scale", GTK_TYPE_ORIENTATION, GTK_ORIENTATION_VERTICAL, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_IS_MUTED, g_param_spec_boolean ("is-muted", "is muted", "Whether stream is muted", FALSE, G_PARAM_READWRITE|G_PARAM_CONSTRUCT)); g_object_class_install_property (object_class, PROP_SHOW_MUTE, g_param_spec_boolean ("show-mute", "show mute", "Whether stream is muted", FALSE, G_PARAM_READWRITE|G_PARAM_CONSTRUCT)); g_object_class_install_property (object_class, PROP_ADJUSTMENT, g_param_spec_object ("adjustment", "Adjustment", "The GtkAdjustment that contains the current value of this scale button object", GTK_TYPE_ADJUSTMENT, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_NAME, g_param_spec_string ("name", "Name", "Name to display for this stream", NULL, G_PARAM_READWRITE|G_PARAM_CONSTRUCT)); g_object_class_install_property (object_class, PROP_ICON_NAME, g_param_spec_string ("icon-name", "Icon Name", "Name of icon to display for this stream", NULL, G_PARAM_READWRITE|G_PARAM_CONSTRUCT)); g_object_class_install_property (object_class, PROP_LOW_ICON_NAME, g_param_spec_string ("low-icon-name", "Icon Name", "Name of icon to display for this stream", "audio-volume-low", G_PARAM_READWRITE|G_PARAM_CONSTRUCT)); g_object_class_install_property (object_class, PROP_HIGH_ICON_NAME, g_param_spec_string ("high-icon-name", "Icon Name", "Name of icon to display for this stream", "audio-volume-high", G_PARAM_READWRITE|G_PARAM_CONSTRUCT)); g_object_class_install_property (object_class, PROP_IS_AMPLIFIED, g_param_spec_boolean ("is-amplified", "is amplified", "Whether the stream is digitally amplified", FALSE, G_PARAM_READWRITE|G_PARAM_CONSTRUCT)); g_type_class_add_private (klass, sizeof (GvcChannelBarPrivate)); } static void on_mute_button_toggled (GtkToggleButton *button, GvcChannelBar *bar) { gboolean is_muted; is_muted = gtk_toggle_button_get_active (button); gvc_channel_bar_set_is_muted (bar, is_muted); } static void gvc_channel_bar_init (GvcChannelBar *bar) { GtkWidget *frame; bar->priv = GVC_CHANNEL_BAR_GET_PRIVATE (bar); bar->priv->base_volume = ADJUSTMENT_MAX_NORMAL; bar->priv->low_icon_name = g_strdup ("audio-volume-low"); bar->priv->high_icon_name = g_strdup ("audio-volume-high"); bar->priv->orientation = GTK_ORIENTATION_VERTICAL; bar->priv->adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, ADJUSTMENT_MAX_NORMAL, ADJUSTMENT_MAX_NORMAL/100.0, ADJUSTMENT_MAX_NORMAL/10.0, 0.0)); g_object_ref_sink (bar->priv->adjustment); bar->priv->zero_adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, ADJUSTMENT_MAX_NORMAL, ADJUSTMENT_MAX_NORMAL/100.0, ADJUSTMENT_MAX_NORMAL/10.0, 0.0)); g_object_ref_sink (bar->priv->zero_adjustment); g_signal_connect (bar->priv->zero_adjustment, "value-changed", G_CALLBACK (on_zero_adjustment_value_changed), bar); bar->priv->mute_button = gtk_check_button_new_with_label (_("Mute")); gtk_widget_set_no_show_all (bar->priv->mute_button, TRUE); g_signal_connect (bar->priv->mute_button, "toggled", G_CALLBACK (on_mute_button_toggled), bar); bar->priv->mute_box = gtk_alignment_new (0.5, 0.5, 0, 0); gtk_container_add (GTK_CONTAINER (bar->priv->mute_box), bar->priv->mute_button); bar->priv->low_image = gtk_image_new_from_icon_name ("audio-volume-low", GTK_ICON_SIZE_BUTTON); gtk_widget_set_no_show_all (bar->priv->low_image, TRUE); bar->priv->high_image = gtk_image_new_from_icon_name ("audio-volume-high", GTK_ICON_SIZE_BUTTON); gtk_widget_set_no_show_all (bar->priv->high_image, TRUE); bar->priv->image = gtk_image_new (); gtk_widget_set_no_show_all (bar->priv->image, TRUE); bar->priv->label = gtk_label_new (NULL); gtk_misc_set_alignment (GTK_MISC (bar->priv->label), 0.0, 0.5); gtk_widget_set_no_show_all (bar->priv->label, TRUE); /* frame */ frame = gtk_frame_new (NULL); gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_NONE); gtk_container_add (GTK_CONTAINER (bar), frame); gtk_widget_show_all (frame); /* box with scale */ bar->priv->scale_box = _scale_box_new (bar); gtk_container_add (GTK_CONTAINER (frame), bar->priv->scale_box); } static void gvc_channel_bar_finalize (GObject *object) { GvcChannelBar *channel_bar; g_return_if_fail (object != NULL); g_return_if_fail (GVC_IS_CHANNEL_BAR (object)); channel_bar = GVC_CHANNEL_BAR (object); g_return_if_fail (channel_bar->priv != NULL); g_free (channel_bar->priv->name); g_free (channel_bar->priv->icon_name); g_free (channel_bar->priv->low_icon_name); g_free (channel_bar->priv->high_icon_name); G_OBJECT_CLASS (gvc_channel_bar_parent_class)->finalize (object); } GtkWidget * gvc_channel_bar_new (void) { GObject *bar; bar = g_object_new (GVC_TYPE_CHANNEL_BAR, NULL); return GTK_WIDGET (bar); }