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libgnome-volume-control/gvc-channel-bar.c

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Initial import Code from gnome-control-center, build system integration from gnome-shell
2012-10-19 12:55:52 -04:00
/* -*- 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-lib.h>
#include <gtk/gtk.h>
#include <canberra-gtk.h>
#include "gvc-channel-bar.h"
#include "gvc-mixer-control.h"
#define SCALE_SIZE 128
#define ADJUSTMENT_MAX_NORMAL gvc_mixer_control_get_vol_max_norm(NULL)
#define ADJUSTMENT_MAX_AMPLIFIED gvc_mixer_control_get_vol_max_amplified(NULL)
#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_switch;
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,
PROP_ELLIPSIZE
};
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_box_new (GTK_ORIENTATION_VERTICAL, 6);
priv->scale = gtk_scale_new (GTK_ORIENTATION_VERTICAL, 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_box_new (GTK_ORIENTATION_VERTICAL, 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_box_new (GTK_ORIENTATION_VERTICAL, 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_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (box), priv->image, FALSE, FALSE, 0);
priv->scale = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL, priv->adjustment);
gtk_widget_set_size_request (priv->scale, SCALE_SIZE, -1);
bar->priv->start_box = sbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 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->label, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (box), priv->scale, TRUE, TRUE, 0);
bar->priv->end_box = ebox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 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);
}
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_MENU);
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_MENU);
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)
{
bar->priv->click_lock = TRUE;
return FALSE;
}
static gboolean
on_scale_button_release_event (GtkWidget *widget,
GdkEventButton *event,
GvcChannelBar *bar)
{
GtkAdjustment *adj;
gdouble value;
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.gnome.VolumeControl",
NULL);
return FALSE;
}
gboolean
gvc_channel_bar_scroll (GvcChannelBar *bar, GdkEventScroll *event)
{
GtkAdjustment *adj;
gdouble value;
GdkScrollDirection direction;
gdouble dx, dy;
g_return_val_if_fail (bar != NULL, FALSE);
g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), FALSE);
direction = event->direction;
if (bar->priv->orientation == GTK_ORIENTATION_VERTICAL) {
if (direction == GDK_SCROLL_LEFT || direction == GDK_SCROLL_RIGHT)
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;
}
if (!gdk_event_get_scroll_deltas ((GdkEvent*)event, &dx, &dy)) {
dx = 0.0;
dy = 0.0;
switch (direction) {
case GDK_SCROLL_UP:
case GDK_SCROLL_LEFT:
dy = 1.0;
break;
case GDK_SCROLL_DOWN:
case GDK_SCROLL_RIGHT:
dy = -1.0;
break;
default:
;
}
}
adj = gtk_range_get_adjustment (GTK_RANGE (bar->priv->scale));
if (adj == bar->priv->zero_adjustment) {
if (dy > 0)
gvc_channel_bar_set_is_muted (bar, FALSE);
return TRUE;
}
value = gtk_adjustment_get_value (adj);
if (dy > 0) {
if (value + dy * SCROLLSTEP > ADJUSTMENT_MAX)
value = ADJUSTMENT_MAX;
else
value = value + dy * SCROLLSTEP;
} else if (dy < 0) {
if (value + dy * SCROLLSTEP < 0)
value = 0.0;
else
value = value + dy * 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);
}
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_switch (GvcChannelBar *bar)
{
if (bar->priv->show_mute) {
gtk_widget_show (bar->priv->mute_switch);
gtk_switch_set_active (GTK_SWITCH (bar->priv->mute_switch),
!bar->priv->is_muted);
} else {
gtk_widget_hide (bar->priv->mute_switch);
}
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_switch (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_switch (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, 0.15);
gtk_misc_set_alignment (GTK_MISC (bar->priv->high_image), 0.5, 0.15);
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);
}
}
gboolean
gvc_channel_bar_get_ellipsize (GvcChannelBar *bar)
{
g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), FALSE);
return gtk_label_get_ellipsize (GTK_LABEL (bar->priv->label)) != PANGO_ELLIPSIZE_NONE;
}
void
gvc_channel_bar_set_ellipsize (GvcChannelBar *bar,
gboolean ellipsized)
{
g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
if (ellipsized)
gtk_label_set_ellipsize (GTK_LABEL (bar->priv->label), PANGO_ELLIPSIZE_END);
else
gtk_label_set_ellipsize (GTK_LABEL (bar->priv->label), PANGO_ELLIPSIZE_NONE);
}
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;
case PROP_ELLIPSIZE:
gvc_channel_bar_set_ellipsize (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;
case PROP_ELLIPSIZE:
g_value_set_boolean (value, gvc_channel_bar_get_ellipsize (self));
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_switch (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-symbolic",
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-symbolic",
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_object_class_install_property (object_class,
PROP_ELLIPSIZE,
g_param_spec_boolean ("ellipsize",
"Label is ellipsized",
"Whether the label is ellipsized",
FALSE,
G_PARAM_READWRITE|G_PARAM_CONSTRUCT));
g_type_class_add_private (klass, sizeof (GvcChannelBarPrivate));
}
static void
on_mute_switch_toggled (GtkSwitch *sw,
GParamSpec *pspec,
GvcChannelBar *bar)
{
gboolean is_muted;
is_muted = gtk_switch_get_active (sw);
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-symbolic");
bar->priv->high_icon_name = g_strdup ("audio-volume-high-symbolic");
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_switch = gtk_switch_new ();
gtk_widget_set_no_show_all (bar->priv->mute_switch, TRUE);
g_signal_connect (bar->priv->mute_switch,
"notify::active",
G_CALLBACK (on_mute_switch_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_switch);
bar->priv->low_image = gtk_image_new_from_icon_name ("audio-volume-low-symbolic",
GTK_ICON_SIZE_MENU);
gtk_widget_set_no_show_all (bar->priv->low_image, TRUE);
bar->priv->high_image = gtk_image_new_from_icon_name ("audio-volume-high-symbolic",
GTK_ICON_SIZE_MENU);
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);
}
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