/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- * * Copyright (C) 2008 William Jon McCann * Copyright (C) 2014 Michal Ratajsky * * 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 #include #include #include #include #include #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; gdouble max; gboolean has_mark = FALSE; gboolean extended; 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); max = mate_mixer_stream_control_get_max_volume (bar->priv->control); if (normal <= gtk_adjustment_get_lower (bar->priv->adjustment)) return; if (base < normal) { gchar *str = g_strdup_printf ("%s", 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 */ extended = bar->priv->extended && max > normal; if (extended && (base == normal || base < normal)) { gchar *str = g_strdup_printf ("%s", 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); }