diff options
Diffstat (limited to 'mate-volume-control/src/gvc-channel-bar.c')
| -rw-r--r-- | mate-volume-control/src/gvc-channel-bar.c | 930 |
1 files changed, 930 insertions, 0 deletions
diff --git a/mate-volume-control/src/gvc-channel-bar.c b/mate-volume-control/src/gvc-channel-bar.c new file mode 100644 index 0000000..d750871 --- /dev/null +++ b/mate-volume-control/src/gvc-channel-bar.c @@ -0,0 +1,930 @@ +/* -*- 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + +#include "config.h" + +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +#include <pulse/pulseaudio.h> + +#include <glib.h> +#include <glib/gi18n.h> +#include <gtk/gtk.h> +#include <canberra-gtk.h> + +#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); + +G_DEFINE_TYPE (GvcChannelBar, gvc_channel_bar, GTK_TYPE_HBOX) + +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); + } + + gtk_range_set_update_policy (GTK_RANGE (priv->scale), GTK_UPDATE_CONTINUOUS); + 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 (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 ("<small>%s</small>", C_("volume", "100%")); + gtk_scale_add_mark (GTK_SCALE (bar->priv->scale), ADJUSTMENT_MAX_NORMAL, + GTK_POS_BOTTOM, str); + } else { + str = g_strdup_printf ("<small>%s</small>", 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 ("<small>%s</small>", 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); +} |