1 files changed, 1158 insertions, 0 deletions
diff --git a/mate-volume-control/gvc-channel-bar.c b/mate-volume-control/gvc-channel-bar.c
new file mode 100644
index 0000000..e431651
--- /dev/null
+++ b/mate-volume-control/gvc-channel-bar.c
@@ -0,0 +1,1158 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2008 William Jon McCann
+ * Copyright (C) 2014 Michal Ratajsky <[email protected]>
+ *
+ * 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 <glib.h>
+#include <glib/gi18n.h>
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
+#include <canberra-gtk.h>
+#include <libmatemixer/matemixer.h>
+
+#include "gvc-channel-bar.h"
+
+#define SCALE_SIZE 128
+#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;
+ gboolean show_icons;
+ gboolean show_mute;
+ gboolean show_marks;
+ gboolean extended;
+ GtkSizeGroup *size_group;
+ gboolean symmetric;
+ gboolean click_lock;
+ MateMixerStreamControl *control;
+ MateMixerStreamControlFlags control_flags;
+};
+
+enum {
+ PROP_0,
+ PROP_CONTROL,
+ PROP_ORIENTATION,
+ PROP_SHOW_ICONS,
+ PROP_SHOW_MUTE,
+ PROP_SHOW_MARKS,
+ PROP_EXTENDED,
+ PROP_NAME,
+ PROP_ICON_NAME,
+ PROP_LOW_ICON_NAME,
+ PROP_HIGH_ICON_NAME,
+ N_PROPERTIES
+};
+
+static GParamSpec *properties[N_PROPERTIES] = { NULL, };
+
+static void gvc_channel_bar_class_init (GvcChannelBarClass *klass);
+static void gvc_channel_bar_init (GvcChannelBar *bar);
+
+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 void
+create_scale_box (GvcChannelBar *bar)
+{
+#if GTK_CHECK_VERSION (3, 0, 0)
+ bar->priv->scale_box = gtk_box_new (bar->priv->orientation, 6);
+ bar->priv->start_box = gtk_box_new (bar->priv->orientation, 6);
+ bar->priv->end_box = gtk_box_new (bar->priv->orientation, 6);
+ bar->priv->scale = gtk_scale_new (bar->priv->orientation,
+ bar->priv->adjustment);
+#else
+ if (bar->priv->orientation == GTK_ORIENTATION_VERTICAL) {
+ bar->priv->scale_box = gtk_vbox_new (FALSE, 6);
+ bar->priv->start_box = gtk_vbox_new (FALSE, 6);
+ bar->priv->end_box = gtk_vbox_new (FALSE, 6);
+ bar->priv->scale = gtk_vscale_new (bar->priv->adjustment);
+ } else {
+ bar->priv->scale_box = gtk_hbox_new (FALSE, 6);
+ bar->priv->start_box = gtk_hbox_new (FALSE, 6);
+ bar->priv->end_box = gtk_hbox_new (FALSE, 6);
+ bar->priv->scale = gtk_hscale_new (bar->priv->adjustment);
+ }
+#endif
+ if (bar->priv->orientation == GTK_ORIENTATION_VERTICAL) {
+ gtk_widget_set_size_request (bar->priv->scale, -1, SCALE_SIZE);
+
+ gtk_range_set_inverted (GTK_RANGE (bar->priv->scale), TRUE);
+
+ gtk_box_pack_start (GTK_BOX (bar->priv->scale_box),
+ bar->priv->start_box,
+ FALSE, FALSE, 0);
+
+ gtk_box_pack_start (GTK_BOX (bar->priv->start_box),
+ bar->priv->image,
+ FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (bar->priv->start_box),
+ bar->priv->label,
+ FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (bar->priv->start_box),
+ bar->priv->high_image,
+ FALSE, FALSE, 0);
+
+ gtk_box_pack_start (GTK_BOX (bar->priv->scale_box),
+ bar->priv->scale,
+ TRUE, TRUE, 0);
+ gtk_box_pack_start (GTK_BOX (bar->priv->scale_box),
+ bar->priv->end_box,
+ FALSE, FALSE, 0);
+
+ gtk_box_pack_start (GTK_BOX (bar->priv->end_box),
+ bar->priv->low_image,
+ FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (bar->priv->end_box),
+ bar->priv->mute_box,
+ FALSE, FALSE, 0);
+ } else {
+ gtk_widget_set_size_request (bar->priv->scale, SCALE_SIZE, -1);
+
+ gtk_box_pack_start (GTK_BOX (bar->priv->scale_box),
+ bar->priv->image,
+ FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (bar->priv->scale_box),
+ bar->priv->start_box,
+ FALSE, FALSE, 0);
+
+ gtk_box_pack_end (GTK_BOX (bar->priv->start_box),
+ bar->priv->low_image,
+ FALSE, FALSE, 0);
+
+ gtk_box_pack_start (GTK_BOX (bar->priv->start_box),
+ bar->priv->label,
+ TRUE, TRUE, 0);
+
+ gtk_box_pack_start (GTK_BOX (bar->priv->scale_box),
+ bar->priv->scale,
+ TRUE, TRUE, 0);
+ gtk_box_pack_start (GTK_BOX (bar->priv->scale_box),
+ bar->priv->end_box,
+ FALSE, FALSE, 0);
+
+ gtk_box_pack_start (GTK_BOX (bar->priv->end_box),
+ bar->priv->high_image,
+ FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (bar->priv->end_box),
+ bar->priv->mute_box,
+ FALSE, FALSE, 0);
+ }
+
+ if (bar->priv->show_icons) {
+ gtk_widget_show (bar->priv->low_image);
+ gtk_widget_show (bar->priv->high_image);
+ } else {
+ gtk_widget_hide (bar->priv->low_image);
+ gtk_widget_hide (bar->priv->high_image);
+ }
+
+ 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,
+ bar->priv->start_box);
+
+ if (bar->priv->symmetric)
+ gtk_size_group_add_widget (bar->priv->size_group,
+ bar->priv->end_box);
+ }
+
+ gtk_scale_set_draw_value (GTK_SCALE (bar->priv->scale), FALSE);
+}
+
+static void
+on_adjustment_value_changed (GtkAdjustment *adjustment,
+ GvcChannelBar *bar)
+{
+ gdouble value;
+ gdouble lower;
+
+ if (bar->priv->control == NULL || bar->priv->click_lock == TRUE)
+ return;
+
+ value = gtk_adjustment_get_value (bar->priv->adjustment);
+ lower = gtk_adjustment_get_lower (bar->priv->adjustment);
+
+ if (bar->priv->control_flags & MATE_MIXER_STREAM_CONTROL_MUTE_WRITABLE)
+ mate_mixer_stream_control_set_mute (bar->priv->control, (value <= lower));
+
+ if (bar->priv->control_flags & MATE_MIXER_STREAM_CONTROL_VOLUME_WRITABLE)
+ mate_mixer_stream_control_set_volume (bar->priv->control, (guint) value);
+}
+
+static void
+on_mute_button_toggled (GtkToggleButton *button, GvcChannelBar *bar)
+{
+ gboolean mute;
+
+ mute = gtk_toggle_button_get_active (button);
+
+ mate_mixer_stream_control_set_mute (bar->priv->control, mute);
+}
+
+static void
+update_layout (GvcChannelBar *bar)
+{
+ GtkWidget *frame;
+
+ if (bar->priv->scale == NULL)
+ return;
+
+ frame = gtk_widget_get_parent (bar->priv->scale_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);
+
+ // XXX this is not the opposite of what is done above
+ 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 (bar->priv->scale_box),
+ bar->priv->start_box);
+ gtk_container_remove (GTK_CONTAINER (bar->priv->scale_box),
+ bar->priv->scale);
+ gtk_container_remove (GTK_CONTAINER (bar->priv->scale_box),
+ bar->priv->end_box);
+ gtk_container_remove (GTK_CONTAINER (frame),
+ bar->priv->scale_box);
+
+ create_scale_box (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);
+}
+
+static void
+update_marks (GvcChannelBar *bar)
+{
+ gdouble base;
+ gdouble normal;
+ gboolean has_mark = FALSE;
+
+ gtk_scale_clear_marks (GTK_SCALE (bar->priv->scale));
+
+ if (bar->priv->control == NULL || bar->priv->show_marks == FALSE)
+ return;
+
+ /* Base volume represents unamplified volume, normal volume is the 100%
+ * volume, in many cases they are the same as unamplified volume is unknown */
+ base = mate_mixer_stream_control_get_base_volume (bar->priv->control);
+ normal = mate_mixer_stream_control_get_normal_volume (bar->priv->control);
+
+ if (normal <= gtk_adjustment_get_lower (bar->priv->adjustment))
+ return;
+
+ if (base < normal) {
+ gchar *str = g_strdup_printf ("<small>%s</small>", C_("volume", "Unamplified"));
+
+ gtk_scale_add_mark (GTK_SCALE (bar->priv->scale),
+ base,
+ GTK_POS_BOTTOM,
+ str);
+ has_mark = TRUE;
+ g_free (str);
+ }
+
+ /* Only show 100% mark if the scale is extended beyond 100% and
+ * there is no unamplified mark or it is below the normal volume */
+ if (bar->priv->extended && (base == normal || base < normal)) {
+ gchar *str = g_strdup_printf ("<small>%s</small>", C_("volume", "100%"));
+
+ gtk_scale_add_mark (GTK_SCALE (bar->priv->scale),
+ normal,
+ GTK_POS_BOTTOM,
+ str);
+ has_mark = TRUE;
+ g_free (str);
+ }
+
+ if (has_mark) {
+ 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);
+ }
+}
+
+static void
+update_adjustment_value (GvcChannelBar *bar)
+{
+ gdouble value;
+ gboolean set_lower = FALSE;
+
+ /* Move the slider to the minimal value if the stream control is muted or
+ * volume is unavailable */
+ if (bar->priv->control == NULL)
+ set_lower = TRUE;
+ else if (bar->priv->control_flags & MATE_MIXER_STREAM_CONTROL_MUTE_READABLE)
+ set_lower = mate_mixer_stream_control_get_mute (bar->priv->control);
+
+ if (set_lower == TRUE)
+ value = gtk_adjustment_get_lower (bar->priv->adjustment);
+ else
+ value = mate_mixer_stream_control_get_volume (bar->priv->control);
+
+ g_signal_handlers_block_by_func (G_OBJECT (bar->priv->adjustment),
+ on_adjustment_value_changed,
+ bar);
+
+ gtk_adjustment_set_value (bar->priv->adjustment, value);
+
+ g_signal_handlers_unblock_by_func (G_OBJECT (bar->priv->adjustment),
+ on_adjustment_value_changed,
+ bar);
+}
+
+static void
+update_adjustment_limits (GvcChannelBar *bar)
+{
+ gdouble minimum = 0.0;
+ gdouble maximum = 0.0;
+
+ if (bar->priv->control != NULL) {
+ minimum = mate_mixer_stream_control_get_min_volume (bar->priv->control);
+ if (bar->priv->extended)
+ maximum = mate_mixer_stream_control_get_max_volume (bar->priv->control);
+ else
+ maximum = mate_mixer_stream_control_get_normal_volume (bar->priv->control);
+ }
+
+ gtk_adjustment_configure (bar->priv->adjustment,
+ gtk_adjustment_get_value (bar->priv->adjustment),
+ minimum,
+ maximum,
+ (maximum - minimum) / 100.0,
+ (maximum - minimum) / 15.0,
+ 0.0);
+}
+
+static void
+update_mute_button (GvcChannelBar *bar)
+{
+ if (bar->priv->show_mute == TRUE) {
+ gboolean enable = FALSE;
+
+ if (bar->priv->control != NULL &&
+ bar->priv->control_flags & MATE_MIXER_STREAM_CONTROL_MUTE_READABLE)
+ enable = TRUE;
+
+ if (enable == TRUE) {
+ gboolean mute = mate_mixer_stream_control_get_mute (bar->priv->control);
+
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (bar->priv->mute_button),
+ mute);
+ } else {
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (bar->priv->mute_button),
+ FALSE);
+ }
+
+ gtk_widget_set_sensitive (bar->priv->mute_button, enable);
+ gtk_widget_show (bar->priv->mute_button);
+ } else
+ gtk_widget_hide (bar->priv->mute_button);
+}
+
+static gboolean
+on_scale_button_press_event (GtkWidget *widget,
+ GdkEventButton *event,
+ GvcChannelBar *bar)
+{
+
+#if !GTK_CHECK_VERSION (3, 6, 0)
+ /* Up to GTK 3.4 the slider selection only moves in increments when
+ * clicking in the slider with the left button and it moves directly
+ * to the clicked position with the middle mouse button.
+ * Change this behaviour to also jump to the clicked position with the
+ * left mouse button. */
+ if (event->button == 1)
+ event->button = 2;
+#endif
+
+ /* Muting the stream when volume is non-zero moves the slider to zero,
+ * but the volume remains the same. In this case delay unmuting and
+ * changing volume until user releases the mouse button. */
+ if (bar->priv->control_flags & MATE_MIXER_STREAM_CONTROL_MUTE_READABLE &&
+ bar->priv->control_flags & MATE_MIXER_STREAM_CONTROL_VOLUME_READABLE) {
+ if (mate_mixer_stream_control_get_mute (bar->priv->control) == TRUE) {
+ guint minimum = (guint) gtk_adjustment_get_lower (bar->priv->adjustment);
+
+ if (mate_mixer_stream_control_get_volume (bar->priv->control) > minimum)
+ bar->priv->click_lock = TRUE;
+ }
+ }
+ return FALSE;
+}
+
+static gboolean
+on_scale_button_release_event (GtkWidget *widget,
+ GdkEventButton *event,
+ GvcChannelBar *bar)
+{
+#if !GTK_CHECK_VERSION (3, 6, 0)
+ if (event->button == 1)
+ event->button = 2;
+#endif
+
+ if (bar->priv->click_lock == TRUE) {
+ /* The volume change is not reflected while the lock is
+ * held, propagate the change now that user has released
+ * the mouse button */
+ bar->priv->click_lock = FALSE;
+ on_adjustment_value_changed (bar->priv->adjustment, bar);
+ }
+
+ /* Play a sound */
+ ca_gtk_play_for_widget (GTK_WIDGET (bar), 0,
+ CA_PROP_EVENT_ID, "audio-volume-change",
+ CA_PROP_EVENT_DESCRIPTION, "Volume change",
+ CA_PROP_APPLICATION_ID, "org.mate.VolumeControl",
+ CA_PROP_APPLICATION_NAME, _("Volume Control"),
+ CA_PROP_APPLICATION_VERSION, VERSION,
+ CA_PROP_APPLICATION_ICON_NAME, "multimedia-volume-control",
+ NULL);
+ return FALSE;
+}
+
+static gboolean
+on_scale_scroll_event (GtkWidget *widget,
+ GdkEventScroll *event,
+ GvcChannelBar *bar)
+{
+ GdkScrollDirection direction = event->direction;
+
+#if GTK_CHECK_VERSION (3, 4, 0)
+ if (direction == GDK_SCROLL_SMOOTH) {
+ gdouble dx = 0.0;
+ gdouble dy = 0.0;
+
+ gdk_event_get_scroll_deltas ((const GdkEvent *) event, &dx, &dy);
+ if (dy > 0.0)
+ direction = GDK_SCROLL_DOWN;
+ else if (dy < 0.0)
+ direction = GDK_SCROLL_UP;
+ else
+ return FALSE;
+ }
+#endif
+ return gvc_channel_bar_scroll (bar, direction);
+}
+
+static void
+on_control_volume_notify (MateMixerStreamControl *control,
+ GParamSpec *pspec,
+ GvcChannelBar *bar)
+{
+ update_adjustment_value (bar);
+}
+
+static void
+on_control_mute_notify (MateMixerStreamControl *control,
+ GParamSpec *pspec,
+ GvcChannelBar *bar)
+{
+ if (bar->priv->show_mute == TRUE) {
+ gboolean mute = mate_mixer_stream_control_get_mute (control);
+
+ g_signal_handlers_block_by_func (G_OBJECT (bar->priv->mute_button),
+ on_mute_button_toggled,
+ bar);
+
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (bar->priv->mute_button), mute);
+
+ g_signal_handlers_unblock_by_func (G_OBJECT (bar->priv->mute_button),
+ on_mute_button_toggled,
+ bar);
+ }
+ update_adjustment_value (bar);
+}
+
+MateMixerStreamControl *
+gvc_channel_bar_get_control (GvcChannelBar *bar)
+{
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), NULL);
+
+ return bar->priv->control;
+}
+
+void
+gvc_channel_bar_set_control (GvcChannelBar *bar, MateMixerStreamControl *control)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ if (bar->priv->control == control)
+ return;
+
+ if (control != NULL)
+ g_object_ref (control);
+
+ if (bar->priv->control != NULL) {
+ g_signal_handlers_disconnect_by_func (G_OBJECT (bar->priv->control),
+ G_CALLBACK (on_control_volume_notify),
+ bar);
+ g_signal_handlers_disconnect_by_func (G_OBJECT (bar->priv->control),
+ G_CALLBACK (on_control_mute_notify),
+ bar);
+ g_object_unref (bar->priv->control);
+ }
+
+ bar->priv->control = control;
+
+ if (control != NULL)
+ bar->priv->control_flags = mate_mixer_stream_control_get_flags (control);
+ else
+ bar->priv->control_flags = MATE_MIXER_STREAM_CONTROL_NO_FLAGS;
+
+ if (bar->priv->control_flags & MATE_MIXER_STREAM_CONTROL_VOLUME_READABLE)
+ g_signal_connect (G_OBJECT (control),
+ "notify::volume",
+ G_CALLBACK (on_control_volume_notify),
+ bar);
+ if (bar->priv->control_flags & MATE_MIXER_STREAM_CONTROL_MUTE_READABLE)
+ g_signal_connect (G_OBJECT (control),
+ "notify::mute",
+ G_CALLBACK (on_control_mute_notify),
+ bar);
+
+ update_marks (bar);
+ update_mute_button (bar);
+ update_adjustment_limits (bar);
+ update_adjustment_value (bar);
+}
+
+GtkOrientation
+gvc_channel_bar_get_orientation (GvcChannelBar *bar)
+{
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), 0);
+
+ return bar->priv->orientation;
+}
+
+void
+gvc_channel_bar_set_orientation (GvcChannelBar *bar,
+ GtkOrientation orientation)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ if (orientation == bar->priv->orientation)
+ return;
+
+ bar->priv->orientation = orientation;
+ update_layout (bar);
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_ORIENTATION]);
+}
+
+gboolean
+gvc_channel_bar_get_show_icons (GvcChannelBar *bar)
+{
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), FALSE);
+
+ return bar->priv->show_icons;
+}
+
+void
+gvc_channel_bar_set_show_icons (GvcChannelBar *bar, gboolean show_icons)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ if (show_icons == bar->priv->show_icons)
+ return;
+
+ bar->priv->show_icons = show_icons;
+
+ if (bar->priv->show_icons == TRUE) {
+ gtk_widget_show (bar->priv->low_image);
+ gtk_widget_show (bar->priv->high_image);
+ } else {
+ gtk_widget_hide (bar->priv->low_image);
+ gtk_widget_hide (bar->priv->high_image);
+ }
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_SHOW_ICONS]);
+}
+
+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_show_mute (GvcChannelBar *bar, gboolean show_mute)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ if (show_mute == bar->priv->show_mute)
+ return;
+
+ bar->priv->show_mute = show_mute;
+ update_mute_button (bar);
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_SHOW_MUTE]);
+}
+
+gboolean
+gvc_channel_bar_get_show_marks (GvcChannelBar *bar)
+{
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), FALSE);
+
+ return bar->priv->show_marks;
+}
+
+void
+gvc_channel_bar_set_show_marks (GvcChannelBar *bar, gboolean show_marks)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ if (show_marks == bar->priv->show_marks)
+ return;
+
+ bar->priv->show_marks = show_marks;
+ update_marks (bar);
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_SHOW_MARKS]);
+}
+
+gboolean
+gvc_channel_bar_get_extended (GvcChannelBar *bar)
+{
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), FALSE);
+
+ return bar->priv->extended;
+}
+
+void
+gvc_channel_bar_set_extended (GvcChannelBar *bar, gboolean extended)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ if (extended == bar->priv->extended)
+ return;
+
+ bar->priv->extended = extended;
+
+ /* Update displayed marks as non-extended scales do not show the 100%
+ * limit at the end of the scale */
+ update_marks (bar);
+ update_adjustment_limits (bar);
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_EXTENDED]);
+}
+
+const gchar *
+gvc_channel_bar_get_name (GvcChannelBar *bar)
+{
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), NULL);
+
+ return gtk_label_get_text (GTK_LABEL (bar->priv->label));
+}
+
+void
+gvc_channel_bar_set_name (GvcChannelBar *bar, const gchar *name)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ if (name != NULL) {
+ gtk_label_set_text_with_mnemonic (GTK_LABEL (bar->priv->label), 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);
+ }
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_NAME]);
+}
+
+const gchar *
+gvc_channel_bar_get_icon_name (GvcChannelBar *bar)
+{
+ const gchar *name = NULL;
+
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), NULL);
+
+ gtk_image_get_icon_name (GTK_IMAGE (bar->priv->image), &name, NULL);
+ return name;
+}
+
+void
+gvc_channel_bar_set_icon_name (GvcChannelBar *bar, const gchar *name)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ gtk_image_set_from_icon_name (GTK_IMAGE (bar->priv->image),
+ name,
+ GTK_ICON_SIZE_DIALOG);
+ if (name != NULL)
+ gtk_widget_show (bar->priv->image);
+ else
+ gtk_widget_hide (bar->priv->image);
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_ICON_NAME]);
+}
+
+const gchar *
+gvc_channel_bar_get_low_icon_name (GvcChannelBar *bar)
+{
+ const gchar *name = NULL;
+
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), NULL);
+
+ gtk_image_get_icon_name (GTK_IMAGE (bar->priv->low_image), &name, NULL);
+ return name;
+}
+
+void
+gvc_channel_bar_set_low_icon_name (GvcChannelBar *bar, const gchar *name)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ gtk_image_set_from_icon_name (GTK_IMAGE (bar->priv->low_image),
+ name,
+ GTK_ICON_SIZE_BUTTON);
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_LOW_ICON_NAME]);
+}
+
+const gchar *
+gvc_channel_bar_get_high_icon_name (GvcChannelBar *bar)
+{
+ const gchar *name = NULL;
+
+ g_return_val_if_fail (GVC_IS_CHANNEL_BAR (bar), NULL);
+
+ gtk_image_get_icon_name (GTK_IMAGE (bar->priv->high_image), &name, NULL);
+ return name;
+}
+
+void
+gvc_channel_bar_set_high_icon_name (GvcChannelBar *bar, const gchar *name)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+
+ gtk_image_set_from_icon_name (GTK_IMAGE (bar->priv->high_image),
+ name,
+ GTK_ICON_SIZE_BUTTON);
+
+ g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_HIGH_ICON_NAME]);
+}
+
+gboolean
+gvc_channel_bar_scroll (GvcChannelBar *bar, GdkScrollDirection direction)
+{
+ gdouble value;
+ gdouble minimum;
+ gdouble maximum;
+ gdouble scrollstep;
+
+ 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;
+ }
+
+ value = gtk_adjustment_get_value (bar->priv->adjustment);
+ minimum = gtk_adjustment_get_lower (bar->priv->adjustment);
+ maximum = gtk_adjustment_get_upper (bar->priv->adjustment);
+
+ scrollstep = maximum / 100.0 * 5.0;
+
+ if (direction == GDK_SCROLL_UP) {
+ if (value + scrollstep > maximum)
+ value = maximum;
+ else
+ value = value + scrollstep;
+ } else if (direction == GDK_SCROLL_DOWN) {
+ if (value - scrollstep < minimum)
+ value = minimum;
+ else
+ value = value - scrollstep;
+ }
+
+ gtk_adjustment_set_value (bar->priv->adjustment, value);
+ return TRUE;
+}
+
+void
+gvc_channel_bar_set_size_group (GvcChannelBar *bar,
+ GtkSizeGroup *group,
+ gboolean symmetric)
+{
+ g_return_if_fail (GVC_IS_CHANNEL_BAR (bar));
+ g_return_if_fail (GTK_IS_SIZE_GROUP (group));
+
+ 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));
+}
+
+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_CONTROL:
+ gvc_channel_bar_set_control (self, g_value_get_object (value));
+ break;
+ case PROP_ORIENTATION:
+ gvc_channel_bar_set_orientation (self, g_value_get_enum (value));
+ break;
+ case PROP_SHOW_MUTE:
+ gvc_channel_bar_set_show_mute (self, g_value_get_boolean (value));
+ break;
+ case PROP_SHOW_ICONS:
+ gvc_channel_bar_set_show_icons (self, g_value_get_boolean (value));
+ break;
+ case PROP_SHOW_MARKS:
+ gvc_channel_bar_set_show_marks (self, g_value_get_boolean (value));
+ break;
+ case PROP_EXTENDED:
+ gvc_channel_bar_set_extended (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;
+ 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);
+
+ switch (prop_id) {
+ case PROP_CONTROL:
+ g_value_set_object (value, self->priv->control);
+ break;
+ case PROP_ORIENTATION:
+ g_value_set_enum (value, self->priv->orientation);
+ break;
+ case PROP_SHOW_MUTE:
+ g_value_set_boolean (value, self->priv->show_mute);
+ break;
+ case PROP_SHOW_ICONS:
+ g_value_set_boolean (value, self->priv->show_icons);
+ break;
+ case PROP_SHOW_MARKS:
+ g_value_set_boolean (value, self->priv->show_marks);
+ break;
+ case PROP_EXTENDED:
+ g_value_set_boolean (value, self->priv->extended);
+ break;
+ case PROP_NAME:
+ g_value_set_string (value, gtk_label_get_text (GTK_LABEL (self->priv->label)));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gvc_channel_bar_class_init (GvcChannelBarClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->set_property = gvc_channel_bar_set_property;
+ object_class->get_property = gvc_channel_bar_get_property;
+
+ properties[PROP_CONTROL] =
+ g_param_spec_object ("control",
+ "Control",
+ "MateMixer stream control",
+ MATE_MIXER_TYPE_STREAM_CONTROL,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_ORIENTATION] =
+ g_param_spec_enum ("orientation",
+ "Orientation",
+ "The orientation of the scale",
+ GTK_TYPE_ORIENTATION,
+ GTK_ORIENTATION_VERTICAL,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_SHOW_MUTE] =
+ g_param_spec_boolean ("show-mute",
+ "show mute",
+ "Whether stream is muted",
+ FALSE,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_SHOW_ICONS] =
+ g_param_spec_boolean ("show-icons",
+ "show mute",
+ "Whether to show low and high icons",
+ FALSE,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_SHOW_MARKS] =
+ g_param_spec_boolean ("show-marks",
+ "Show marks",
+ "Whether to show scale marks",
+ FALSE,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_EXTENDED] =
+ g_param_spec_boolean ("extended",
+ "Extended",
+ "Allow the scale to be extended above normal volume",
+ FALSE,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_NAME] =
+ g_param_spec_string ("name",
+ "Name",
+ "Name to display for this stream",
+ NULL,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_ICON_NAME] =
+ g_param_spec_string ("icon-name",
+ "Icon name",
+ "Name of icon to display for this stream",
+ NULL,
+ G_PARAM_WRITABLE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_LOW_ICON_NAME] =
+ g_param_spec_string ("low-icon-name",
+ "Low icon name",
+ "Name of low volume icon to display for this stream",
+ "audio-volume-low",
+ G_PARAM_WRITABLE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ properties[PROP_HIGH_ICON_NAME] =
+ g_param_spec_string ("high-icon-name",
+ "High icon name",
+ "Name of high volume icon to display for this stream",
+ "audio-volume-high",
+ G_PARAM_WRITABLE |
+ G_PARAM_CONSTRUCT |
+ G_PARAM_STATIC_STRINGS);
+
+ g_object_class_install_properties (object_class, N_PROPERTIES, properties);
+
+ g_type_class_add_private (klass, sizeof (GvcChannelBarPrivate));
+}
+
+static void
+gvc_channel_bar_init (GvcChannelBar *bar)
+{
+ GtkWidget *frame;
+
+ bar->priv = GVC_CHANNEL_BAR_GET_PRIVATE (bar);
+
+ /* Mute button */
+ 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->image = gtk_image_new ();
+ gtk_widget_set_no_show_all (bar->priv->image, TRUE);
+
+ /* Low/high icons */
+ bar->priv->low_image = gtk_image_new ();
+ gtk_widget_set_no_show_all (bar->priv->low_image, TRUE);
+
+ bar->priv->high_image = gtk_image_new ();
+ gtk_widget_set_no_show_all (bar->priv->high_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_box_pack_start (GTK_BOX (bar), frame, TRUE, TRUE, 0);
+
+ gtk_widget_show_all (frame);
+
+ /* Create a default adjustment */
+ bar->priv->adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, 0, 0, 0, 0));
+
+ g_object_ref_sink (bar->priv->adjustment);
+
+ g_signal_connect (bar->priv->adjustment,
+ "value-changed",
+ G_CALLBACK (on_adjustment_value_changed),
+ bar);
+
+ /* Initially create a vertical scale box */
+ bar->priv->orientation = GTK_ORIENTATION_VERTICAL;
+
+ create_scale_box (bar);
+
+ gtk_container_add (GTK_CONTAINER (frame), bar->priv->scale_box);
+}
+
+GtkWidget *
+gvc_channel_bar_new (MateMixerStreamControl *control)
+{
+ return g_object_new (GVC_TYPE_CHANNEL_BAR,
+ "control", control,
+#if GTK_CHECK_VERSION (3, 0, 0)
+ "orientation", GTK_ORIENTATION_HORIZONTAL,
+#endif
+ NULL);
+}