diff options
Diffstat (limited to 'mate-volume-control/src/gvc-balance-bar.c')
| -rw-r--r-- | mate-volume-control/src/gvc-balance-bar.c | 552 |
1 files changed, 0 insertions, 552 deletions
diff --git a/mate-volume-control/src/gvc-balance-bar.c b/mate-volume-control/src/gvc-balance-bar.c deleted file mode 100644 index 7431773..0000000 --- a/mate-volume-control/src/gvc-balance-bar.c +++ /dev/null @@ -1,552 +0,0 @@ -/* -*- 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 <glib.h> -#include <glib/gi18n.h> -#include <glib-object.h> -#include <gtk/gtk.h> - -#include <canberra-gtk.h> -#include <libmatemixer/matemixer.h> - -#include "gvc-balance-bar.h" - -#define BALANCE_BAR_STYLE \ - "style \"balance-bar-scale-style\" {\n" \ - " GtkScale::trough-side-details = 0\n" \ - "}\n" \ - "widget \"*.balance-bar-scale\" style : rc \"balance-bar-scale-style\"\n" - -#define SCALE_SIZE 128 -#define GVC_BALANCE_BAR_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GVC_TYPE_BALANCE_BAR, GvcBalanceBarPrivate)) - -struct _GvcBalanceBarPrivate -{ - GvcBalanceType btype; - GtkWidget *scale_box; - GtkWidget *start_box; - GtkWidget *end_box; - GtkWidget *label; - GtkWidget *scale; - GtkAdjustment *adjustment; - GtkSizeGroup *size_group; - gboolean symmetric; - MateMixerStreamControl *control; - gint lfe_channel; -}; - -enum -{ - PROP_0, - PROP_CONTROL, - PROP_BALANCE_TYPE, - N_PROPERTIES -}; - -static GParamSpec *properties[N_PROPERTIES] = { NULL, }; - -static void gvc_balance_bar_class_init (GvcBalanceBarClass *klass); -static void gvc_balance_bar_init (GvcBalanceBar *balance_bar); -static void gvc_balance_bar_dispose (GObject *object); - -static gboolean on_scale_scroll_event (GtkWidget *widget, - GdkEventScroll *event, - GvcBalanceBar *bar); - -static void on_adjustment_value_changed (GtkAdjustment *adjustment, - GvcBalanceBar *bar); - -#if GTK_CHECK_VERSION (3, 0, 0) -G_DEFINE_TYPE (GvcBalanceBar, gvc_balance_bar, GTK_TYPE_BOX) -#else -G_DEFINE_TYPE (GvcBalanceBar, gvc_balance_bar, GTK_TYPE_HBOX) -#endif - -static void -create_scale_box (GvcBalanceBar *bar) -{ -#if GTK_CHECK_VERSION (3, 0, 0) - bar->priv->scale_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); - bar->priv->start_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); - bar->priv->end_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); - bar->priv->scale = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL, - bar->priv->adjustment); -#if GTK_CHECK_VERSION (3, 4, 0) - /* Balance and fade scales do not have an origin */ - if (bar->priv->btype != BALANCE_TYPE_LFE) - gtk_scale_set_has_origin (GTK_SCALE (bar->priv->scale), FALSE); -#endif -#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); - - /* GTK2 way to remove the origin */ - if (bar->priv->btype != BALANCE_TYPE_LFE) { - gtk_rc_parse_string (BALANCE_BAR_STYLE); - gtk_widget_set_name (bar->priv->scale, "balance-bar-scale"); - } -#endif - - gtk_widget_set_size_request (bar->priv->scale, SCALE_SIZE, -1); - - 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->label, - 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); - - 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), - "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 -update_scale_marks (GvcBalanceBar *bar) -{ - gchar *str_lower = NULL, - *str_upper = NULL; - gdouble lower, - upper; - - gtk_scale_clear_marks (GTK_SCALE (bar->priv->scale)); - - switch (bar->priv->btype) { - case BALANCE_TYPE_RL: - str_lower = g_strdup_printf ("<small>%s</small>", C_("balance", "Left")); - str_upper = g_strdup_printf ("<small>%s</small>", C_("balance", "Right")); - break; - case BALANCE_TYPE_FR: - str_lower = g_strdup_printf ("<small>%s</small>", C_("balance", "Rear")); - str_upper = g_strdup_printf ("<small>%s</small>", C_("balance", "Front")); - break; - case BALANCE_TYPE_LFE: - str_lower = g_strdup_printf ("<small>%s</small>", C_("balance", "Minimum")); - str_upper = g_strdup_printf ("<small>%s</small>", C_("balance", "Maximum")); - break; - } - - lower = gtk_adjustment_get_lower (bar->priv->adjustment); - gtk_scale_add_mark (GTK_SCALE (bar->priv->scale), - lower, - GTK_POS_BOTTOM, - str_lower); - upper = gtk_adjustment_get_upper (bar->priv->adjustment); - gtk_scale_add_mark (GTK_SCALE (bar->priv->scale), - upper, - GTK_POS_BOTTOM, - str_upper); - g_free (str_lower); - g_free (str_upper); - - if (bar->priv->btype != BALANCE_TYPE_LFE) - gtk_scale_add_mark (GTK_SCALE (bar->priv->scale), - (upper - lower) / 2 + lower, - GTK_POS_BOTTOM, - NULL); -} - -void -gvc_balance_bar_set_size_group (GvcBalanceBar *bar, - GtkSizeGroup *group, - gboolean symmetric) -{ - g_return_if_fail (GVC_IS_BALANCE_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 -update_balance_value (GvcBalanceBar *bar) -{ - gdouble value = 0; - - switch (bar->priv->btype) { - case BALANCE_TYPE_RL: - value = mate_mixer_stream_control_get_balance (bar->priv->control); - g_debug ("Balance value changed to %.2f", value); - break; - case BALANCE_TYPE_FR: - value = mate_mixer_stream_control_get_fade (bar->priv->control); - g_debug ("Fade value changed to %.2f", value); - break; - case BALANCE_TYPE_LFE: - value = mate_mixer_stream_control_get_channel_volume (bar->priv->control, - bar->priv->lfe_channel); - - g_debug ("Subwoofer volume changed to %.0f", value); - break; - } - - gtk_adjustment_set_value (bar->priv->adjustment, value); -} - -static void -on_balance_value_changed (MateMixerStream *stream, - GParamSpec *pspec, - GvcBalanceBar *bar) -{ - update_balance_value (bar); -} - -static gint -find_stream_lfe_channel (MateMixerStreamControl *control) -{ - guint i; - - for (i = 0; i < mate_mixer_stream_control_get_num_channels (control); i++) { - MateMixerChannelPosition position; - - position = mate_mixer_stream_control_get_channel_position (control, i); - if (position == MATE_MIXER_CHANNEL_LFE) - return i; - } - - return -1; -} - -static void -gvc_balance_bar_set_control (GvcBalanceBar *bar, MateMixerStreamControl *control) -{ - g_return_if_fail (GVC_BALANCE_BAR (bar)); - g_return_if_fail (MATE_MIXER_IS_STREAM_CONTROL (control)); - - if (bar->priv->control != NULL) { - g_signal_handlers_disconnect_by_func (G_OBJECT (bar->priv->control), - on_balance_value_changed, - bar); - g_object_unref (bar->priv->control); - } - - bar->priv->control = g_object_ref (control); - - if (bar->priv->btype == BALANCE_TYPE_LFE) { - gdouble minimum; - gdouble maximum; - - minimum = mate_mixer_stream_control_get_min_volume (bar->priv->control); - maximum = mate_mixer_stream_control_get_normal_volume (bar->priv->control); - - /* Configure the adjustment for the volume limits of the current - * stream. - * Only subwoofer scale uses volume, balance and fade use fixed - * limits which do not need to be updated as balance type is - * only set during construction. */ - gtk_adjustment_configure (GTK_ADJUSTMENT (bar->priv->adjustment), - gtk_adjustment_get_value (bar->priv->adjustment), - minimum, - maximum, - (maximum - minimum) / 100.0, - (maximum - minimum) / 10.0, - 0.0); - - bar->priv->lfe_channel = find_stream_lfe_channel (bar->priv->control); - - if (G_LIKELY (bar->priv->lfe_channel > -1)) - g_debug ("Found LFE channel at position %d", bar->priv->lfe_channel); - else - g_warn_if_reached (); - } else - bar->priv->lfe_channel = -1; - - switch (bar->priv->btype) { - case BALANCE_TYPE_RL: - g_signal_connect (G_OBJECT (bar->priv->control), - "notify::balance", - G_CALLBACK (on_balance_value_changed), - bar); - break; - case BALANCE_TYPE_FR: - g_signal_connect (G_OBJECT (bar->priv->control), - "notify::fade", - G_CALLBACK (on_balance_value_changed), - bar); - break; - case BALANCE_TYPE_LFE: - g_signal_connect (G_OBJECT (bar->priv->control), - "notify::volume", - G_CALLBACK (on_balance_value_changed), - bar); - break; - } - - update_balance_value (bar); - update_scale_marks (bar); - - g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_CONTROL]); -} - -static void -gvc_balance_bar_set_balance_type (GvcBalanceBar *bar, GvcBalanceType btype) -{ - GtkWidget *frame; - GtkAdjustment *adjustment; - - /* Create adjustment with limits for balance and fade types because - * some limits must be provided. - * If subwoofer type is used instead, the limits will be changed when - * stream is set. */ - adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, -1.0, 1.0, 0.05, 0.5, 0.0)); - - bar->priv->btype = btype; - bar->priv->adjustment = GTK_ADJUSTMENT (g_object_ref_sink (adjustment)); - - g_signal_connect (G_OBJECT (adjustment), - "value-changed", - G_CALLBACK (on_adjustment_value_changed), - bar); - - switch (btype) { - case BALANCE_TYPE_RL: - bar->priv->label = gtk_label_new_with_mnemonic (_("_Balance:")); - break; - case BALANCE_TYPE_FR: - bar->priv->label = gtk_label_new_with_mnemonic (_("_Fade:")); - break; - case BALANCE_TYPE_LFE: - bar->priv->label = gtk_label_new_with_mnemonic (_("_Subwoofer:")); - break; - } - - gtk_misc_set_alignment (GTK_MISC (bar->priv->label), 0.0, 0.0); - - /* 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); - - /* Box with scale */ - create_scale_box (bar); - gtk_container_add (GTK_CONTAINER (frame), bar->priv->scale_box); - - gtk_label_set_mnemonic_widget (GTK_LABEL (bar->priv->label), - bar->priv->scale); - - gtk_widget_set_direction (bar->priv->scale, GTK_TEXT_DIR_LTR); - gtk_widget_show_all (frame); - - g_object_notify_by_pspec (G_OBJECT (bar), properties[PROP_BALANCE_TYPE]); -} - -static void -gvc_balance_bar_set_property (GObject *object, - guint prop_id, - const GValue *value, - GParamSpec *pspec) -{ - GvcBalanceBar *self = GVC_BALANCE_BAR (object); - - switch (prop_id) { - case PROP_CONTROL: - gvc_balance_bar_set_control (self, g_value_get_object (value)); - break; - case PROP_BALANCE_TYPE: - gvc_balance_bar_set_balance_type (self, g_value_get_int (value)); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gvc_balance_bar_get_property (GObject *object, - guint prop_id, - GValue *value, - GParamSpec *pspec) -{ - GvcBalanceBar *self = GVC_BALANCE_BAR (object); - - switch (prop_id) { - case PROP_CONTROL: - g_value_set_object (value, self->priv->control); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gvc_balance_bar_class_init (GvcBalanceBarClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS (klass); - - object_class->dispose = gvc_balance_bar_dispose; - object_class->set_property = gvc_balance_bar_set_property; - object_class->get_property = gvc_balance_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_STATIC_STRINGS); - - properties[PROP_BALANCE_TYPE] = - g_param_spec_int ("balance-type", - "balance type", - "Whether the balance is right-left or front-rear", - BALANCE_TYPE_RL, - NUM_BALANCE_TYPES - 1, - BALANCE_TYPE_RL, - G_PARAM_READWRITE | - G_PARAM_CONSTRUCT_ONLY | - G_PARAM_STATIC_STRINGS); - - g_object_class_install_properties (object_class, N_PROPERTIES, properties); - - g_type_class_add_private (klass, sizeof (GvcBalanceBarPrivate)); -} - -static gboolean -on_scale_scroll_event (GtkWidget *widget, - GdkEventScroll *event, - GvcBalanceBar *bar) -{ - gdouble value; - gdouble minimum; - gdouble maximum; - gdouble step; - - value = gtk_adjustment_get_value (bar->priv->adjustment); - minimum = gtk_adjustment_get_lower (bar->priv->adjustment); - maximum = gtk_adjustment_get_upper (bar->priv->adjustment); - - // XXX fix this for GTK3 - - if (bar->priv->btype == BALANCE_TYPE_LFE) - step = (maximum - minimum) / 100.0; - else - step = 0.05; - - if (event->direction == GDK_SCROLL_UP) { - if (value + step > maximum) - value = maximum; - else - value = value + step; - } else if (event->direction == GDK_SCROLL_DOWN) { - if (value - step < minimum) - value = minimum; - else - value = value - step; - } - - gtk_adjustment_set_value (bar->priv->adjustment, value); - return TRUE; -} - -static void -on_adjustment_value_changed (GtkAdjustment *adjustment, GvcBalanceBar *bar) -{ - gdouble value; - - if (bar->priv->control == NULL) - return; - - value = gtk_adjustment_get_value (adjustment); - - switch (bar->priv->btype) { - case BALANCE_TYPE_RL: - mate_mixer_stream_control_set_balance (bar->priv->control, value); - break; - case BALANCE_TYPE_FR: - mate_mixer_stream_control_set_fade (bar->priv->control, value); - break; - case BALANCE_TYPE_LFE: - mate_mixer_stream_control_set_channel_volume (bar->priv->control, - bar->priv->lfe_channel, - value); - break; - } -} - -static void -gvc_balance_bar_init (GvcBalanceBar *bar) -{ - bar->priv = GVC_BALANCE_BAR_GET_PRIVATE (bar); -} - -static void -gvc_balance_bar_dispose (GObject *object) -{ - GvcBalanceBar *bar; - - bar = GVC_BALANCE_BAR (object); - - if (bar->priv->control != NULL) { - g_signal_handlers_disconnect_by_func (G_OBJECT (bar->priv->control), - on_balance_value_changed, - bar); - g_clear_object (&bar->priv->control); - } - - G_OBJECT_CLASS (gvc_balance_bar_parent_class)->dispose (object); -} - -GtkWidget * -gvc_balance_bar_new (MateMixerStreamControl *control, GvcBalanceType btype) -{ - return g_object_new (GVC_TYPE_BALANCE_BAR, - "balance-type", btype, - "control", control, -#if GTK_CHECK_VERSION (3, 0, 0) - "orientation", GTK_ORIENTATION_HORIZONTAL, -#endif - NULL); -} |