ardour/gtk2_ardour/mixer_ui.cc
David Robillard 6fa6514cfd Remove over 500 unnecessary includes (including 54 of session.h).
It's slightly possible that this causes trivial build failures on different
configurations, but otherwise shouldn't cause any problems (i.e. no actual
changes other than include/naming/namespace stuff).  I deliberately avoided
removing libardour-config.h since this can mysteriously break things, though a
few of those do seem to be unnecessary.

This commit only targets includes of ardour/*.h.  There is also a very large
number of unnecessary includes of stuff in gtk2_ardour; tackling that should
also give a big improvement in build time when things are modified.


git-svn-id: svn://localhost/ardour2/branches/3.0@12420 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-05-24 06:09:29 +00:00

1863 lines
45 KiB
C++

/*
Copyright (C) 2000-2004 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef WAF_BUILD
#include "gtk2ardour-config.h"
#endif
#include <algorithm>
#include <map>
#include <sigc++/bind.h>
#include <gtkmm/accelmap.h>
#include "pbd/convert.h"
#include "pbd/stacktrace.h"
#include <glibmm/thread.h>
#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/tearoff.h>
#include <gtkmm2ext/window_title.h>
#include "ardour/plugin_manager.h"
#include "ardour/route_group.h"
#include "ardour/session.h"
#include "keyboard.h"
#include "mixer_ui.h"
#include "mixer_strip.h"
#include "monitor_section.h"
#include "plugin_selector.h"
#include "public_editor.h"
#include "ardour_ui.h"
#include "prompter.h"
#include "utils.h"
#include "actions.h"
#include "gui_thread.h"
#include "mixer_group_tabs.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Glib;
using namespace Gtkmm2ext;
using namespace std;
using PBD::atoi;
Mixer_UI* Mixer_UI::_instance = 0;
Mixer_UI*
Mixer_UI::instance ()
{
if (!_instance) {
_instance = new Mixer_UI;
}
return _instance;
}
Mixer_UI::Mixer_UI ()
: Window (Gtk::WINDOW_TOPLEVEL)
, _following_editor_selection (false)
{
/* allow this window to become the key focus window */
set_flags (CAN_FOCUS);
_strip_width = Config->get_default_narrow_ms() ? Narrow : Wide;
track_menu = 0;
_monitor_section = 0;
no_track_list_redisplay = false;
in_group_row_change = false;
_visible = false;
strip_redisplay_does_not_reset_order_keys = false;
strip_redisplay_does_not_sync_order_keys = false;
ignore_sync = false;
Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_order_keys, this, _1), gui_context());
scroller_base.set_flags (Gtk::CAN_FOCUS);
scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
scroller_base.set_name ("MixerWindow");
scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
// add as last item of strip packer
strip_packer.pack_end (scroller_base, true, true);
_group_tabs = new MixerGroupTabs (this);
VBox* b = manage (new VBox);
b->pack_start (*_group_tabs, PACK_SHRINK);
b->pack_start (strip_packer);
b->show_all ();
scroller.add (*b);
scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
setup_track_display ();
group_model = ListStore::create (group_columns);
group_display.set_model (group_model);
group_display.append_column (_("Group"), group_columns.text);
group_display.append_column (_("Show"), group_columns.visible);
group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
group_display.get_column (0)->set_expand(true);
group_display.get_column (1)->set_expand(false);
group_display.set_name ("MixerGroupList");
group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
group_display.set_reorderable (true);
group_display.set_headers_visible (true);
group_display.set_rules_hint (true);
/* name is directly editable */
CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
name_cell->property_editable() = true;
name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
/* use checkbox for the active column */
CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
active_cell->property_activatable() = true;
active_cell->property_radio() = false;
group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
/* We use this to notice drag-and-drop reorders of the group list */
group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
group_display_scroller.add (group_display);
group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
HBox* route_group_display_button_box = manage (new HBox());
Button* route_group_add_button = manage (new Button ());
Button* route_group_remove_button = manage (new Button ());
Widget* w;
w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
w->show();
route_group_add_button->add (*w);
w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
w->show();
route_group_remove_button->add (*w);
route_group_display_button_box->set_homogeneous (true);
route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
route_group_display_button_box->add (*route_group_add_button);
route_group_display_button_box->add (*route_group_remove_button);
group_display_vbox.pack_start (group_display_scroller, true, true);
group_display_vbox.pack_start (*route_group_display_button_box, false, false);
group_display_frame.set_name ("BaseFrame");
group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
group_display_frame.add (group_display_vbox);
rhs_pane1.pack1 (track_display_frame);
rhs_pane1.pack2 (group_display_frame);
list_vpacker.pack_start (rhs_pane1, true, true);
global_hpacker.pack_start (scroller, true, true);
#ifdef GTKOSX
/* current gtk-quartz has dirty updates on borders like this one */
global_hpacker.pack_start (out_packer, false, false, 0);
#else
global_hpacker.pack_start (out_packer, false, false, 12);
#endif
list_hpane.pack1(list_vpacker, true, true);
list_hpane.pack2(global_hpacker, true, false);
rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
static_cast<Gtk::Paned*> (&rhs_pane1)));
list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
static_cast<Gtk::Paned*> (&list_hpane)));
global_vpacker.pack_start (list_hpane, true, true);
add (global_vpacker);
set_name ("MixerWindow");
update_title ();
set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
route_group_display_button_box->show();
route_group_add_button->show();
route_group_remove_button->show();
global_hpacker.show();
global_vpacker.show();
scroller.show();
scroller_base.show();
scroller_hpacker.show();
mixer_scroller_vpacker.show();
list_vpacker.show();
group_display_button_label.show();
group_display_button.show();
group_display_scroller.show();
group_display_vbox.show();
group_display_frame.show();
rhs_pane1.show();
strip_packer.show();
out_packer.show();
list_hpane.show();
group_display.show();
auto_rebinding = FALSE;
_in_group_rebuild_or_clear = false;
MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
MonitorSection::setup_knob_images ();
#ifndef DEFER_PLUGIN_SELECTOR_LOAD
_plugin_selector = new PluginSelector (PluginManager::instance ());
#endif
}
Mixer_UI::~Mixer_UI ()
{
if (_monitor_section) {
delete _monitor_section;
}
}
void
Mixer_UI::track_editor_selection ()
{
PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
}
void
Mixer_UI::ensure_float (Window& win)
{
win.set_transient_for (*this);
}
void
Mixer_UI::show_window ()
{
present ();
if (!_visible) {
set_window_pos_and_size ();
/* show/hide group tabs as required */
parameter_changed ("show-group-tabs");
/* now reset each strips width so the right widgets are shown */
MixerStrip* ms;
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator ri;
for (ri = rows.begin(); ri != rows.end(); ++ri) {
ms = (*ri)[track_columns.strip];
ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
/* Fix visibility of mixer strip stuff */
ms->parameter_changed (X_("mixer-strip-visibility"));
}
}
/* force focus into main area */
scroller_base.grab_focus ();
_visible = true;
}
bool
Mixer_UI::hide_window (GdkEventAny *ev)
{
get_window_pos_and_size ();
_visible = false;
return just_hide_it(ev, static_cast<Gtk::Window *>(this));
}
void
Mixer_UI::add_strip (RouteList& routes)
{
ENSURE_GUI_THREAD (*this, &Mixer_UI::add_strip, routes)
MixerStrip* strip;
no_track_list_redisplay = true;
strip_redisplay_does_not_sync_order_keys = true;
for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
boost::shared_ptr<Route> route = (*x);
if (route->is_hidden()) {
continue;
}
if (route->is_monitor()) {
if (!_monitor_section) {
_monitor_section = new MonitorSection (_session);
XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
if (mnode) {
_monitor_section->tearoff().set_state (*mnode);
}
}
out_packer.pack_end (_monitor_section->tearoff(), false, false);
_monitor_section->set_session (_session);
_monitor_section->tearoff().show_all ();
route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
/* no regular strip shown for control out */
continue;
}
strip = new MixerStrip (*this, _session, route);
strips.push_back (strip);
Config->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
if (strip->width_owner() != strip) {
strip->set_width_enum (_strip_width, this);
}
show_strip (strip);
TreeModel::Row row = *(track_model->append());
row[track_columns.text] = route->name();
row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
row[track_columns.route] = route;
row[track_columns.strip] = strip;
if (route->order_key (N_("signal")) == -1) {
route->set_order_key (N_("signal"), track_model->children().size()-1);
}
route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
}
no_track_list_redisplay = false;
redisplay_track_list ();
strip_redisplay_does_not_sync_order_keys = false;
}
void
Mixer_UI::remove_strip (MixerStrip* strip)
{
if (_session && _session->deletion_in_progress()) {
/* its all being taken care of */
return;
}
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator ri;
list<MixerStrip *>::iterator i;
if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
strips.erase (i);
}
strip_redisplay_does_not_sync_order_keys = true;
for (ri = rows.begin(); ri != rows.end(); ++ri) {
if ((*ri)[track_columns.strip] == strip) {
track_model->erase (ri);
break;
}
}
strip_redisplay_does_not_sync_order_keys = false;
}
void
Mixer_UI::sync_order_keys (string const & src)
{
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator ri;
if (src == N_("signal") || !_session || (_session->state_of_the_state() & (Session::Loading|Session::Deletion)) || rows.empty()) {
return;
}
std::map<int,int> keys;
bool changed = false;
unsigned order = 0;
for (ri = rows.begin(); ri != rows.end(); ++ri, ++order) {
boost::shared_ptr<Route> route = (*ri)[track_columns.route];
unsigned int old_key = order;
unsigned int new_key = route->order_key (N_("signal"));
keys[new_key] = old_key;
if (new_key != old_key) {
changed = true;
}
}
if (keys.size() != rows.size()) {
PBD::stacktrace (cerr, 20);
}
assert(keys.size() == rows.size());
// Remove any gaps in keys caused by automation children tracks
vector<int> neworder;
for (std::map<int,int>::const_iterator i = keys.begin(); i != keys.end(); ++i) {
neworder.push_back(i->second);
}
assert(neworder.size() == rows.size());
if (changed) {
strip_redisplay_does_not_reset_order_keys = true;
track_model->reorder (neworder);
strip_redisplay_does_not_reset_order_keys = false;
}
}
void
Mixer_UI::follow_editor_selection ()
{
if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
return;
}
_following_editor_selection = true;
_selection.block_routes_changed (true);
TrackSelection& s (PublicEditor::instance().get_selection().tracks);
_selection.clear_routes ();
for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
if (rtav) {
MixerStrip* ms = strip_by_route (rtav->route());
if (ms) {
_selection.add (ms);
}
}
}
_following_editor_selection = false;
_selection.block_routes_changed (false);
}
MixerStrip*
Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
{
for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
if ((*i)->route() == r) {
return (*i);
}
}
return 0;
}
bool
Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
{
if (ev->button == 1) {
if (_selection.selected (strip)) {
/* primary-click: toggle selection state of strip */
if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
_selection.remove (strip);
}
} else {
if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
_selection.add (strip);
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
if (!_selection.selected(strip)) {
/* extend selection */
vector<MixerStrip*> tmp;
bool accumulate = false;
tmp.push_back (strip);
for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
if ((*i) == strip) {
/* hit clicked strip, start accumulating till we hit the first
selected strip
*/
if (accumulate) {
/* done */
break;
} else {
accumulate = true;
}
} else if (_selection.selected (*i)) {
/* hit selected strip. if currently accumulating others,
we're done. if not accumulating others, start doing so.
*/
if (accumulate) {
/* done */
break;
} else {
accumulate = true;
}
} else {
if (accumulate) {
tmp.push_back (*i);
}
}
}
for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
_selection.add (*i);
}
}
} else {
_selection.set (strip);
}
}
}
return true;
}
void
Mixer_UI::set_session (Session* sess)
{
SessionHandlePtr::set_session (sess);
if (_plugin_selector) {
_plugin_selector->set_session (_session);
}
_group_tabs->set_session (sess);
if (!_session) {
return;
}
XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
set_state (*node);
update_title ();
initial_track_display ();
_session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strip, this, _1), gui_context());
_session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
_session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
_session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
_session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
_session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
_session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
route_groups_changed ();
if (_visible) {
show_window();
}
start_updating ();
}
void
Mixer_UI::session_going_away ()
{
ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
_in_group_rebuild_or_clear = true;
group_model->clear ();
_in_group_rebuild_or_clear = false;
_selection.clear ();
track_model->clear ();
for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
delete (*i);
}
if (_monitor_section) {
_monitor_section->tearoff().hide_visible ();
}
strips.clear ();
stop_updating ();
SessionHandlePtr::session_going_away ();
_session = 0;
update_title ();
}
void
Mixer_UI::show_strip (MixerStrip* ms)
{
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator i;
for (i = rows.begin(); i != rows.end(); ++i) {
MixerStrip* strip = (*i)[track_columns.strip];
if (strip == ms) {
(*i)[track_columns.visible] = true;
break;
}
}
}
void
Mixer_UI::hide_strip (MixerStrip* ms)
{
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator i;
for (i = rows.begin(); i != rows.end(); ++i) {
MixerStrip* strip = (*i)[track_columns.strip];
if (strip == ms) {
(*i)[track_columns.visible] = false;
break;
}
}
}
gint
Mixer_UI::start_updating ()
{
fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
return 0;
}
gint
Mixer_UI::stop_updating ()
{
fast_screen_update_connection.disconnect();
return 0;
}
void
Mixer_UI::fast_update_strips ()
{
if (is_mapped () && _session) {
for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
(*i)->fast_update ();
}
}
}
void
Mixer_UI::set_all_strips_visibility (bool yn)
{
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator i;
no_track_list_redisplay = true;
for (i = rows.begin(); i != rows.end(); ++i) {
TreeModel::Row row = (*i);
MixerStrip* strip = row[track_columns.strip];
if (strip == 0) {
continue;
}
if (strip->route()->is_master() || strip->route()->is_monitor()) {
continue;
}
(*i)[track_columns.visible] = yn;
}
no_track_list_redisplay = false;
redisplay_track_list ();
}
void
Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
{
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator i;
no_track_list_redisplay = true;
for (i = rows.begin(); i != rows.end(); ++i) {
TreeModel::Row row = (*i);
MixerStrip* strip = row[track_columns.strip];
if (strip == 0) {
continue;
}
if (strip->route()->is_master() || strip->route()->is_monitor()) {
continue;
}
boost::shared_ptr<AudioTrack> at = strip->audio_track();
switch (tracks) {
case 0:
(*i)[track_columns.visible] = yn;
break;
case 1:
if (at) { /* track */
(*i)[track_columns.visible] = yn;
}
break;
case 2:
if (!at) { /* bus */
(*i)[track_columns.visible] = yn;
}
break;
}
}
no_track_list_redisplay = false;
redisplay_track_list ();
}
void
Mixer_UI::hide_all_routes ()
{
set_all_strips_visibility (false);
}
void
Mixer_UI::show_all_routes ()
{
set_all_strips_visibility (true);
}
void
Mixer_UI::show_all_audiobus ()
{
set_all_audio_visibility (2, true);
}
void
Mixer_UI::hide_all_audiobus ()
{
set_all_audio_visibility (2, false);
}
void
Mixer_UI::show_all_audiotracks()
{
set_all_audio_visibility (1, true);
}
void
Mixer_UI::hide_all_audiotracks ()
{
set_all_audio_visibility (1, false);
}
void
Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
{
strip_redisplay_does_not_sync_order_keys = true;
_session->set_remote_control_ids();
redisplay_track_list ();
strip_redisplay_does_not_sync_order_keys = false;
}
void
Mixer_UI::track_list_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator&)
{
// never reset order keys because of a property change
strip_redisplay_does_not_reset_order_keys = true;
_session->set_remote_control_ids();
redisplay_track_list ();
strip_redisplay_does_not_reset_order_keys = false;
}
void
Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
{
/* this could require an order sync */
if (_session && !_session->deletion_in_progress()) {
_session->set_remote_control_ids();
redisplay_track_list ();
}
}
void
Mixer_UI::redisplay_track_list ()
{
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator i;
long order;
if (no_track_list_redisplay) {
return;
}
for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
MixerStrip* strip = (*i)[track_columns.strip];
if (strip == 0) {
/* we're in the middle of changing a row, don't worry */
continue;
}
if (!strip_redisplay_does_not_reset_order_keys) {
strip->route()->set_order_key (N_("signal"), order);
}
bool const visible = (*i)[track_columns.visible];
if (visible) {
strip->set_gui_property ("visible", true);
if (strip->packed()) {
if (strip->route()->is_master() || strip->route()->is_monitor()) {
out_packer.reorder_child (*strip, -1);
} else {
strip_packer.reorder_child (*strip, -1); /* put at end */
}
} else {
if (strip->route()->is_master() || strip->route()->is_monitor()) {
out_packer.pack_start (*strip, false, false);
} else {
strip_packer.pack_start (*strip, false, false);
}
strip->set_packed (true);
}
} else {
strip->set_gui_property ("visible", false);
if (strip->route()->is_master() || strip->route()->is_monitor()) {
/* do nothing, these cannot be hidden */
} else {
if (strip->packed()) {
strip_packer.remove (*strip);
strip->set_packed (false);
}
}
}
}
if (!strip_redisplay_does_not_reset_order_keys && !strip_redisplay_does_not_sync_order_keys) {
_session->sync_order_keys (N_("signal"));
}
// Resigc::bind all of the midi controls automatically
if (auto_rebinding) {
auto_rebind_midi_controls ();
}
_group_tabs->set_dirty ();
}
void
Mixer_UI::strip_width_changed ()
{
_group_tabs->set_dirty ();
#ifdef GTKOSX
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator i;
long order;
for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
MixerStrip* strip = (*i)[track_columns.strip];
if (strip == 0) {
continue;
}
bool visible = (*i)[track_columns.visible];
if (visible) {
strip->queue_draw();
}
}
#endif
}
void
Mixer_UI::set_auto_rebinding( bool val )
{
if( val == TRUE )
{
auto_rebinding = TRUE;
Session::AutoBindingOff();
}
else
{
auto_rebinding = FALSE;
Session::AutoBindingOn();
}
}
void
Mixer_UI::toggle_auto_rebinding()
{
if (auto_rebinding)
{
set_auto_rebinding( FALSE );
}
else
{
set_auto_rebinding( TRUE );
}
auto_rebind_midi_controls();
}
void
Mixer_UI::auto_rebind_midi_controls ()
{
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator i;
int pos;
// Create bindings for all visible strips and remove those that are not visible
pos = 1; // 0 is reserved for the master strip
for (i = rows.begin(); i != rows.end(); ++i) {
MixerStrip* strip = (*i)[track_columns.strip];
if ( (*i)[track_columns.visible] == true ) { // add bindings for
// make the actual binding
//cout<<"Auto Binding: Visible Strip Found: "<<strip->name()<<endl;
int controlValue = pos;
if( strip->route()->is_master() ) {
controlValue = 0;
}
else {
pos++;
}
PBD::Controllable::CreateBinding ( strip->solo_button->get_controllable().get(), controlValue, 0);
PBD::Controllable::CreateBinding ( strip->mute_button->get_controllable().get(), controlValue, 1);
if( strip->is_audio_track() ) {
PBD::Controllable::CreateBinding ( strip->rec_enable_button->get_controllable().get(), controlValue, 2);
}
PBD::Controllable::CreateBinding ( strip->gpm.get_controllable().get(), controlValue, 3);
PBD::Controllable::CreateBinding ( strip->panners.get_controllable().get(), controlValue, 4);
}
else { // Remove any existing binding
PBD::Controllable::DeleteBinding ( strip->solo_button->get_controllable().get() );
PBD::Controllable::DeleteBinding ( strip->mute_button->get_controllable().get() );
if( strip->is_audio_track() ) {
PBD::Controllable::DeleteBinding ( strip->rec_enable_button->get_controllable().get() );
}
PBD::Controllable::DeleteBinding ( strip->gpm.get_controllable().get() );
PBD::Controllable::DeleteBinding ( strip->panners.get_controllable().get() ); // This only takes the first panner if there are multiples...
}
} // for
}
struct SignalOrderRouteSorter {
bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
/* use of ">" forces the correct sort order */
return a->order_key (N_("signal")) < b->order_key (N_("signal"));
}
};
void
Mixer_UI::initial_track_display ()
{
boost::shared_ptr<RouteList> routes = _session->get_routes();
RouteList copy (*routes);
SignalOrderRouteSorter sorter;
copy.sort (sorter);
no_track_list_redisplay = true;
track_model->clear ();
add_strip (copy);
no_track_list_redisplay = false;
redisplay_track_list ();
}
void
Mixer_UI::show_track_list_menu ()
{
if (track_menu == 0) {
build_track_menu ();
}
track_menu->popup (1, gtk_get_current_event_time());
}
bool
Mixer_UI::track_display_button_press (GdkEventButton* ev)
{
if (Keyboard::is_context_menu_event (ev)) {
show_track_list_menu ();
return true;
}
TreeIter iter;
TreeModel::Path path;
TreeViewColumn* column;
int cellx;
int celly;
if (!track_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
return false;
}
switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
case 0:
/* allow normal processing to occur */
return false;
case 1: /* visibility */
if ((iter = track_model->get_iter (path))) {
MixerStrip* strip = (*iter)[track_columns.strip];
if (strip) {
if (!strip->route()->is_master() && !strip->route()->is_monitor()) {
bool visible = (*iter)[track_columns.visible];
(*iter)[track_columns.visible] = !visible;
}
#ifdef GTKOSX
track_display.queue_draw();
#endif
}
}
return true;
default:
break;
}
return false;
}
void
Mixer_UI::build_track_menu ()
{
using namespace Menu_Helpers;
using namespace Gtk;
track_menu = new Menu;
track_menu->set_name ("ArdourContextMenu");
MenuList& items = track_menu->items();
items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
}
void
Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
{
if (!what_changed.contains (ARDOUR::Properties::name)) {
return;
}
ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
TreeModel::Children rows = track_model->children();
TreeModel::Children::iterator i;
for (i = rows.begin(); i != rows.end(); ++i) {
if ((*i)[track_columns.strip] == mx) {
(*i)[track_columns.text] = mx->route()->name();
return;
}
}
error << _("track display list item for renamed strip not found!") << endmsg;
}
bool
Mixer_UI::group_display_button_press (GdkEventButton* ev)
{
TreeModel::Path path;
TreeViewColumn* column;
int cellx;
int celly;
if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
return false;
}
TreeIter iter = group_model->get_iter (path);
if (!iter) {
return false;
}
RouteGroup* group = (*iter)[group_columns.group];
if (Keyboard::is_context_menu_event (ev)) {
_group_tabs->get_menu(group)->popup (1, ev->time);
return true;
}
switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
case 0:
if (Keyboard::is_edit_event (ev)) {
if (group) {
// edit_route_group (group);
#ifdef GTKOSX
group_display.queue_draw();
#endif
return true;
}
}
break;
case 1:
{
bool visible = (*iter)[group_columns.visible];
(*iter)[group_columns.visible] = !visible;
#ifdef GTKOSX
group_display.queue_draw();
#endif
return true;
}
default:
break;
}
return false;
}
void
Mixer_UI::activate_all_route_groups ()
{
_session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
}
void
Mixer_UI::disable_all_route_groups ()
{
_session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
}
void
Mixer_UI::route_groups_changed ()
{
ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
_in_group_rebuild_or_clear = true;
/* just rebuild the while thing */
group_model->clear ();
{
TreeModel::Row row;
row = *(group_model->append());
row[group_columns.visible] = true;
row[group_columns.text] = (_("-all-"));
row[group_columns.group] = 0;
}
_session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
_group_tabs->set_dirty ();
_in_group_rebuild_or_clear = false;
}
void
Mixer_UI::new_route_group ()
{
RouteList rl;
_group_tabs->run_new_group_dialog (rl);
}
void
Mixer_UI::remove_selected_route_group ()
{
Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
if (rows.empty()) {
return;
}
TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
TreeIter iter;
/* selection mode is single, so rows.begin() is it */
if ((iter = group_model->get_iter (*i))) {
RouteGroup* rg = (*iter)[group_columns.group];
if (rg) {
_session->remove_route_group (*rg);
}
}
}
void
Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
{
if (in_group_row_change) {
return;
}
/* force an update of any mixer strips that are using this group,
otherwise mix group names don't change in mixer strips
*/
for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
if ((*i)->route_group() == group) {
(*i)->route_group_changed();
}
}
TreeModel::iterator i;
TreeModel::Children rows = group_model->children();
Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
in_group_row_change = true;
for (i = rows.begin(); i != rows.end(); ++i) {
if ((*i)[group_columns.group] == group) {
(*i)[group_columns.visible] = !group->is_hidden ();
(*i)[group_columns.text] = group->name ();
break;
}
}
in_group_row_change = false;
if (change.contains (Properties::name)) {
_group_tabs->set_dirty ();
}
for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
if ((*j)->route_group() == group) {
if (group->is_hidden ()) {
hide_strip (*j);
} else {
show_strip (*j);
}
}
}
}
void
Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
{
RouteGroup* group;
TreeIter iter;
if ((iter = group_model->get_iter (path))) {
if ((group = (*iter)[group_columns.group]) == 0) {
return;
}
if (new_text != group->name()) {
group->set_name (new_text);
}
}
}
void
Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
{
RouteGroup* group;
if (in_group_row_change) {
return;
}
if ((group = (*iter)[group_columns.group]) == 0) {
return;
}
std::string name = (*iter)[group_columns.text];
if (name != group->name()) {
group->set_name (name);
}
bool hidden = !(*iter)[group_columns.visible];
if (hidden != group->is_hidden ()) {
group->set_hidden (hidden, this);
}
}
/** Called when a group model row is deleted, but also when the model is
* reordered by a user drag-and-drop; the latter is what we are
* interested in here.
*/
void
Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
{
if (_in_group_rebuild_or_clear) {
return;
}
/* Re-write the session's route group list so that the new order is preserved */
list<RouteGroup*> new_list;
Gtk::TreeModel::Children children = group_model->children();
for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
RouteGroup* g = (*i)[group_columns.group];
if (g) {
new_list.push_back (g);
}
}
_session->reorder_route_groups (new_list);
}
void
Mixer_UI::add_route_group (RouteGroup* group)
{
ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
bool focus = false;
in_group_row_change = true;
TreeModel::Row row = *(group_model->append());
row[group_columns.visible] = !group->is_hidden ();
row[group_columns.group] = group;
if (!group->name().empty()) {
row[group_columns.text] = group->name();
} else {
row[group_columns.text] = _("unnamed");
focus = true;
}
group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
if (focus) {
TreeViewColumn* col = group_display.get_column (0);
CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
}
_group_tabs->set_dirty ();
in_group_row_change = false;
}
bool
Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
{
using namespace Menu_Helpers;
if (Keyboard::is_context_menu_event (ev)) {
ARDOUR_UI::instance()->add_route (this);
return true;
}
return false;
}
void
Mixer_UI::set_strip_width (Width w)
{
_strip_width = w;
for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
(*i)->set_width_enum (w, this);
}
}
void
Mixer_UI::set_window_pos_and_size ()
{
resize (m_width, m_height);
move (m_root_x, m_root_y);
}
void
Mixer_UI::get_window_pos_and_size ()
{
get_position(m_root_x, m_root_y);
get_size(m_width, m_height);
}
int
Mixer_UI::set_state (const XMLNode& node)
{
const XMLProperty* prop;
XMLNode* geometry;
m_width = default_width;
m_height = default_height;
m_root_x = 1;
m_root_y = 1;
if ((geometry = find_named_node (node, "geometry")) != 0) {
XMLProperty* prop;
if ((prop = geometry->property("x_size")) == 0) {
prop = geometry->property ("x-size");
}
if (prop) {
m_width = atoi(prop->value());
}
if ((prop = geometry->property("y_size")) == 0) {
prop = geometry->property ("y-size");
}
if (prop) {
m_height = atoi(prop->value());
}
if ((prop = geometry->property ("x_pos")) == 0) {
prop = geometry->property ("x-pos");
}
if (prop) {
m_root_x = atoi (prop->value());
}
if ((prop = geometry->property ("y_pos")) == 0) {
prop = geometry->property ("y-pos");
}
if (prop) {
m_root_y = atoi (prop->value());
}
}
set_window_pos_and_size ();
if ((prop = node.property ("narrow-strips"))) {
if (string_is_affirmative (prop->value())) {
set_strip_width (Narrow);
} else {
set_strip_width (Wide);
}
}
if ((prop = node.property ("show-mixer"))) {
if (string_is_affirmative (prop->value())) {
_visible = true;
}
}
return 0;
}
XMLNode&
Mixer_UI::get_state (void)
{
XMLNode* node = new XMLNode ("Mixer");
if (is_realized()) {
Glib::RefPtr<Gdk::Window> win = get_window();
get_window_pos_and_size ();
XMLNode* geometry = new XMLNode ("geometry");
char buf[32];
snprintf(buf, sizeof(buf), "%d", m_width);
geometry->add_property(X_("x_size"), string(buf));
snprintf(buf, sizeof(buf), "%d", m_height);
geometry->add_property(X_("y_size"), string(buf));
snprintf(buf, sizeof(buf), "%d", m_root_x);
geometry->add_property(X_("x_pos"), string(buf));
snprintf(buf, sizeof(buf), "%d", m_root_y);
geometry->add_property(X_("y_pos"), string(buf));
// written only for compatibility, they are not used.
snprintf(buf, sizeof(buf), "%d", 0);
geometry->add_property(X_("x_off"), string(buf));
snprintf(buf, sizeof(buf), "%d", 0);
geometry->add_property(X_("y_off"), string(buf));
snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
node->add_child_nocopy (*geometry);
}
node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
node->add_property ("show-mixer", _visible ? "yes" : "no");
return *node;
}
void
Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
{
int pos;
XMLProperty* prop = 0;
char buf[32];
XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
XMLNode* geometry;
int height;
static int32_t done[3] = { 0, 0, 0 };
height = default_height;
if ((geometry = find_named_node (*node, "geometry")) != 0) {
if ((prop = geometry->property ("y_size")) == 0) {
prop = geometry->property ("y-size");
}
if (prop) {
height = atoi (prop->value());
}
}
if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
if (done[0]) {
return;
}
if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
pos = height / 3;
snprintf (buf, sizeof(buf), "%d", pos);
} else {
pos = atoi (prop->value());
}
if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
rhs_pane1.set_position (pos);
}
} else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
if (done[2]) {
return;
}
if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
pos = 75;
snprintf (buf, sizeof(buf), "%d", pos);
} else {
pos = atoi (prop->value());
}
if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
list_hpane.set_position (pos);
}
}
}
void
Mixer_UI::scroll_left ()
{
Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
/* stupid GTK: can't rely on clamping across versions */
scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
}
void
Mixer_UI::scroll_right ()
{
Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
/* stupid GTK: can't rely on clamping across versions */
scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
}
bool
Mixer_UI::on_key_press_event (GdkEventKey* ev)
{
/* focus widget gets first shot, then bindings, otherwise
forward to main window
*/
if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
return true;
}
KeyboardKey k (ev->state, ev->keyval);
if (bindings.activate (k, Bindings::Press)) {
return true;
}
return forward_key_press (ev);
}
bool
Mixer_UI::on_key_release_event (GdkEventKey* ev)
{
if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
return true;
}
KeyboardKey k (ev->state, ev->keyval);
if (bindings.activate (k, Bindings::Release)) {
return true;
}
/* don't forward releases */
return true;
}
bool
Mixer_UI::on_scroll_event (GdkEventScroll* ev)
{
switch (ev->direction) {
case GDK_SCROLL_LEFT:
scroll_left ();
return true;
case GDK_SCROLL_UP:
if (ev->state & Keyboard::TertiaryModifier) {
scroll_left ();
return true;
}
return false;
case GDK_SCROLL_RIGHT:
scroll_right ();
return true;
case GDK_SCROLL_DOWN:
if (ev->state & Keyboard::TertiaryModifier) {
scroll_right ();
return true;
}
return false;
}
return false;
}
void
Mixer_UI::parameter_changed (string const & p)
{
if (p == "show-group-tabs") {
bool const s = _session->config.get_show_group_tabs ();
if (s) {
_group_tabs->show ();
} else {
_group_tabs->hide ();
}
} else if (p == "default-narrow_ms") {
bool const s = Config->get_default_narrow_ms ();
for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
(*i)->set_width_enum (s ? Narrow : Wide, this);
}
}
}
void
Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
{
g->set_active (a, this);
}
PluginSelector*
Mixer_UI::plugin_selector()
{
#ifdef DEFER_PLUGIN_SELECTOR_LOAD
if (!_plugin_selector)
_plugin_selector = new PluginSelector (PluginManager::instance());
#endif
return _plugin_selector;
}
void
Mixer_UI::setup_track_display ()
{
track_model = ListStore::create (track_columns);
track_display.set_model (track_model);
track_display.append_column (_("Strips"), track_columns.text);
track_display.append_column (_("Show"), track_columns.visible);
track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
track_display.get_column (0)->set_expand(true);
track_display.get_column (1)->set_expand(false);
track_display.set_name (X_("MixerTrackDisplayList"));
track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
track_display.set_reorderable (true);
track_display.set_headers_visible (true);
track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
track_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_change));
track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
track_list_visible_cell->property_activatable() = true;
track_list_visible_cell->property_radio() = false;
track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
track_display_scroller.add (track_display);
track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
VBox* v = manage (new VBox);
v->show ();
v->pack_start (track_display_scroller, true, true);
Button* b = manage (new Button);
b->show ();
Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
w->show ();
b->add (*w);
b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
v->pack_start (*b, false, false);
track_display_frame.set_name("BaseFrame");
track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
track_display_frame.add (*v);
track_display_scroller.show();
track_display_frame.show();
track_display.show();
}
void
Mixer_UI::new_track_or_bus ()
{
ARDOUR_UI::instance()->add_route (this);
}
void
Mixer_UI::update_title ()
{
if (_session) {
string n;
if (_session->snap_name() != _session->name()) {
n = _session->snap_name ();
} else {
n = _session->name ();
}
if (_session->dirty ()) {
n = "*" + n;
}
WindowTitle title (n);
title += S_("Window|Mixer");
title += Glib::get_application_name ();
set_title (title.get_string());
} else {
WindowTitle title (S_("Window|Mixer"));
title += Glib::get_application_name ();
set_title (title.get_string());
}
}
MixerStrip*
Mixer_UI::strip_by_x (int x)
{
for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
int x1, x2, y;
(*i)->translate_coordinates (*this, 0, 0, x1, y);
x2 = x1 + (*i)->get_width();
if (x >= x1 && x <= x2) {
return (*i);
}
}
return 0;
}
void
Mixer_UI::set_route_targets_for_operation ()
{
_route_targets.clear ();
if (!_selection.empty()) {
_route_targets = _selection.routes;
return;
}
/* try to get mixer strip at mouse */
int x, y;
get_pointer (x, y);
MixerStrip* ms = strip_by_x (x);
if (ms) {
_route_targets.insert (ms);
}
}
void
Mixer_UI::monitor_section_going_away ()
{
if (_monitor_section) {
out_packer.remove (_monitor_section->tearoff());
_monitor_section->set_session (0);
}
}