diff options
Diffstat (limited to 'mate-volume-control/gvc-channel-bar.c')
| -rw-r--r-- | mate-volume-control/gvc-channel-bar.c | 1158 |
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); +} |