moved from Mate-Extra

author: Stefano Karapetsas <[email protected]> 2011-12-11 13:11:15 +0100
committer: Stefano Karapetsas <[email protected]> 2011-12-11 13:11:15 +0100
commit: 4ee2559eaaf2a94ac26c265517e9604a72729360 (patch)
tree: f24e3e3294c2b75819755289e592bf2e28e668c4 /mate-volume-control/src/gvc-channel-bar.c
download: mate-media-4ee2559eaaf2a94ac26c265517e9604a72729360.tar.bz2
mate-media-4ee2559eaaf2a94ac26c265517e9604a72729360.tar.xz
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);
+}
author	Stefano Karapetsas <[email protected]>	2011-12-11 13:11:15 +0100
committer	Stefano Karapetsas <[email protected]>	2011-12-11 13:11:15 +0100
commit	4ee2559eaaf2a94ac26c265517e9604a72729360 (patch)
tree	f24e3e3294c2b75819755289e592bf2e28e668c4 /mate-volume-control/src/gvc-channel-bar.c
download	mate-media-4ee2559eaaf2a94ac26c265517e9604a72729360.tar.bz2 mate-media-4ee2559eaaf2a94ac26c265517e9604a72729360.tar.xz