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livetrax/gtk2_ardour/panner_ui.cc
Paul Davis 1ff30dcecb first basic pass at a single widget stereo panner 
git-svn-id: svn://localhost/ardour2/branches/3.0@8135 d708f5d6-7413-0410-9779-e7cbd77b26cf
2010-11-30 20:22:43 +00:00

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/*
Copyright (C) 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.
*/
#include <limits.h>
#include "ardour/io.h"
#include "ardour/dB.h"
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/barcontroller.h>
#include "midi++/manager.h"
#include "pbd/fastlog.h"
#include "ardour_ui.h"
#include "panner_ui.h"
#include "panner2d.h"
#include "utils.h"
#include "panner.h"
#include "gui_thread.h"
#include "stereo_panner.h"
#include "ardour/delivery.h"
#include "ardour/session.h"
#include "ardour/panner.h"
#include "ardour/route.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtkmm2ext;
using namespace Gtk;
const int PannerUI::pan_bar_height = 20;
PannerUI::PannerUI (Session* s)
: _current_nouts (-1)
, _current_npans (-1)
, hAdjustment(0.0, 0.0, 0.0)
, vAdjustment(0.0, 0.0, 0.0)
, panning_viewport(hAdjustment, vAdjustment)
, panning_up_arrow (Gtk::ARROW_UP, Gtk::SHADOW_OUT)
, panning_down_arrow (Gtk::ARROW_DOWN, Gtk::SHADOW_OUT)
, panning_link_button (_("link"))
, pan_automation_style_button ("")
, pan_automation_state_button ("")
, _bar_spinner_active (false)
{
set_session (s);
ignore_toggle = false;
pan_menu = 0;
pan_astate_menu = 0;
pan_astyle_menu = 0;
in_pan_update = false;
_stereo_panner = 0;
_ignore_width_change = false;
_ignore_position_change = false;
pan_automation_style_button.set_name ("MixerAutomationModeButton");
pan_automation_state_button.set_name ("MixerAutomationPlaybackButton");
ARDOUR_UI::instance()->set_tip (pan_automation_state_button, _("Pan automation mode"));
ARDOUR_UI::instance()->set_tip (pan_automation_style_button, _("Pan automation type"));
//set_size_request_to_display_given_text (pan_automation_state_button, X_("O"), 2, 2);
//set_size_request_to_display_given_text (pan_automation_style_button, X_("0"), 2, 2);
panning_viewport.set_name (X_("BaseFrame"));
ARDOUR_UI::instance()->set_tip (panning_link_button,
_("panning link control"));
ARDOUR_UI::instance()->set_tip (panning_link_direction_button,
_("panning link direction"));
pan_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
pan_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
pan_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &PannerUI::pan_automation_style_button_event), false);
pan_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &PannerUI::pan_automation_state_button_event), false);
panning_link_button.set_name (X_("PanningLinkButton"));
panning_link_direction_button.set_name (X_("PanningLinkDirectionButton"));
panning_link_box.pack_start (panning_link_button, true, true);
panning_link_box.pack_start (panning_link_direction_button, true, true);
panning_link_box.pack_start (pan_automation_state_button, true, true);
/* the pixmap will be reset at some point, but the key thing is that
we need a pixmap in the button just to get started.
*/
panning_link_direction_button.add (*(manage (new Image (get_xpm("forwardblarrow.xpm")))));
panning_link_direction_button.signal_clicked().connect
(sigc::mem_fun(*this, &PannerUI::panning_link_direction_clicked));
panning_link_button.signal_button_press_event().connect
(sigc::mem_fun(*this, &PannerUI::panning_link_button_press), false);
panning_link_button.signal_button_release_event().connect
(sigc::mem_fun(*this, &PannerUI::panning_link_button_release), false);
panning_up.set_border_width (3);
panning_down.set_border_width (3);
panning_up.add (panning_up_arrow);
panning_down.add (panning_down_arrow);
panning_up.set_name (X_("PanScrollerBase"));
panning_down.set_name (X_("PanScrollerBase"));
panning_up_arrow.set_name (X_("PanScrollerArrow"));
panning_down_arrow.set_name (X_("PanScrollerArrow"));
pan_vbox.set_spacing (2);
pan_vbox.pack_start (panning_viewport, Gtk::PACK_SHRINK);
pan_vbox.pack_start (panning_link_box, Gtk::PACK_SHRINK);
pack_start (pan_vbox, true, true);
twod_panner = 0;
big_window = 0;
set_width(Narrow);
}
void
PannerUI::set_panner (boost::shared_ptr<Panner> p)
{
connections.drop_connections ();
delete pan_astyle_menu;
pan_astyle_menu = 0;
delete pan_astate_menu;
pan_astate_menu = 0;
_panner = p;
delete twod_panner;
twod_panner = 0;
if (!_panner) {
return;
}
_panner->Changed.connect (connections, invalidator (*this), boost::bind (&PannerUI::panner_changed, this, this), gui_context());
_panner->LinkStateChanged.connect (connections, invalidator (*this), boost::bind (&PannerUI::update_pan_linkage, this), gui_context());
_panner->StateChanged.connect (connections, invalidator (*this), boost::bind (&PannerUI::update_pan_state, this), gui_context());
panner_changed (0);
update_pan_sensitive ();
update_pan_linkage ();
pan_automation_state_changed ();
}
void
PannerUI::build_astate_menu ()
{
using namespace Menu_Helpers;
if (pan_astate_menu == 0) {
pan_astate_menu = new Menu;
pan_astate_menu->set_name ("ArdourContextMenu");
} else {
pan_astate_menu->items().clear ();
}
pan_astate_menu->items().push_back (MenuElem (_("Manual"), sigc::bind (
sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
(AutoState) Off)));
pan_astate_menu->items().push_back (MenuElem (_("Play"), sigc::bind (
sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
(AutoState) Play)));
pan_astate_menu->items().push_back (MenuElem (_("Write"), sigc::bind (
sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
(AutoState) Write)));
pan_astate_menu->items().push_back (MenuElem (_("Touch"), sigc::bind (
sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
(AutoState) Touch)));
}
void
PannerUI::build_astyle_menu ()
{
using namespace Menu_Helpers;
if (pan_astyle_menu == 0) {
pan_astyle_menu = new Menu;
pan_astyle_menu->set_name ("ArdourContextMenu");
} else {
pan_astyle_menu->items().clear();
}
pan_astyle_menu->items().push_back (MenuElem (_("Trim")));
pan_astyle_menu->items().push_back (MenuElem (_("Abs")));
}
boost::shared_ptr<PBD::Controllable>
PannerUI::get_controllable()
{
return pan_bars[0]->get_controllable();
}
bool
PannerUI::panning_link_button_press (GdkEventButton*)
{
return true;
}
bool
PannerUI::panning_link_button_release (GdkEventButton*)
{
if (!ignore_toggle) {
_panner->set_linked (!_panner->linked());
}
return true;
}
void
PannerUI::panning_link_direction_clicked()
{
switch (_panner->link_direction()) {
case Panner::SameDirection:
_panner->set_link_direction (Panner::OppositeDirection);
break;
default:
_panner->set_link_direction (Panner::SameDirection);
break;
}
}
void
PannerUI::update_pan_linkage ()
{
ENSURE_GUI_THREAD (*this, &PannerUI::update_pan_linkage)
bool const x = _panner->linked();
bool const bx = panning_link_button.get_active();
if (x != bx) {
ignore_toggle = true;
panning_link_button.set_active (x);
ignore_toggle = false;
}
panning_link_direction_button.set_sensitive (x);
switch (_panner->link_direction()) {
case Panner::SameDirection:
panning_link_direction_button.set_image (*(manage (new Image (get_xpm ("forwardblarrow.xpm")))));
break;
default:
panning_link_direction_button.set_image (*(manage (new Image (get_xpm("revdblarrow.xpm")))));
break;
}
}
void
PannerUI::on_size_allocate (Allocation& a)
{
HBox::on_size_allocate (a);
}
void
PannerUI::set_width (Width w)
{
switch (w) {
case Wide:
panning_link_button.set_label (_("link"));
break;
case Narrow:
panning_link_button.set_label (_("L"));
break;
}
_width = w;
}
PannerUI::~PannerUI ()
{
for (vector<Adjustment*>::iterator i = pan_adjustments.begin(); i != pan_adjustments.end(); ++i) {
delete (*i);
}
for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
delete (*i);
}
delete twod_panner;
delete big_window;
delete pan_menu;
delete pan_astyle_menu;
delete pan_astate_menu;
delete _stereo_panner;
}
void
PannerUI::panner_changed (void* src)
{
ENSURE_GUI_THREAD (*this, &PannerUI::panner_changed)
setup_pan ();
if (src == this) {
return;
}
switch (_panner->npanners()) {
case 0:
panning_link_direction_button.set_sensitive (false);
panning_link_button.set_sensitive (false);
return;
case 1:
panning_link_direction_button.set_sensitive (false);
panning_link_button.set_sensitive (false);
break;
default:
panning_link_direction_button.set_sensitive (_panner->linked ());
panning_link_button.set_sensitive (true);
}
uint32_t const nouts = _panner->nouts();
switch (nouts) {
case 0:
case 1:
/* relax */
break;
case 2:
/* bring pan bar state up to date */
update_pan_bars (false);
break;
default:
// panner->move_puck (pan_value (pans[0], pans[1]), 0.5);
break;
}
}
void
PannerUI::update_pan_state ()
{
/* currently nothing to do */
// ENSURE_GUI_THREAD (*this, &PannerUI::update_panner_state)
}
void
PannerUI::setup_pan ()
{
if (!_panner) {
return;
}
uint32_t const nouts = _panner->nouts();
uint32_t const npans = _panner->npanners();
if (int32_t (nouts) == _current_nouts && int32_t (npans) == _current_npans) {
return;
}
_pan_control_connections.drop_connections ();
for (uint32_t i = 0; i < _panner->npanners(); ++i) {
connect_to_pan_control (i);
}
_current_nouts = nouts;
_current_npans = npans;
if (nouts == 0 || nouts == 1) {
while (!pan_adjustments.empty()) {
delete pan_bars.back();
pan_bars.pop_back ();
delete pan_adjustments.back();
pan_adjustments.pop_back ();
}
delete twod_panner;
twod_panner = 0;
/* stick something into the panning viewport so that it redraws */
EventBox* eb = manage (new EventBox());
panning_viewport.remove ();
panning_viewport.add (*eb);
panning_viewport.show_all ();
} else if (nouts == 2) {
vector<Adjustment*>::size_type asz;
while (!pan_adjustments.empty()) {
delete pan_bars.back();
pan_bars.pop_back ();
delete pan_adjustments.back();
pan_adjustments.pop_back ();
}
delete twod_panner;
twod_panner = 0;
while ((asz = pan_adjustments.size()) < npans) {
float x, rx;
PannerBar* bc;
/* initialize adjustment with 0.0 (L) or 1.0 (R) for the first and second panners,
which serves as a default, otherwise use current value */
rx = _panner->pan_control( asz)->get_value();
if (npans == 1) {
x = 0.5;
} else if (asz == 0) {
x = 0.0;
} else if (asz == 1) {
x = 1.0;
} else {
x = rx;
}
pan_adjustments.push_back (new Adjustment (x, 0, 1.0, 0.005, 0.05));
bc = new PannerBar (*pan_adjustments[asz],
boost::static_pointer_cast<PBD::Controllable>( _panner->pan_control( asz )) );
/* now set adjustment with current value of panner, then connect the signals */
pan_adjustments.back()->set_value(rx);
pan_adjustments.back()->signal_value_changed().connect (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_adjustment_changed), (uint32_t) asz));
connect_to_pan_control (asz);
bc->set_name ("PanSlider");
bc->set_shadow_type (Gtk::SHADOW_NONE);
boost::shared_ptr<AutomationControl> ac = _panner->pan_control (asz);
if (asz) {
bc->StartGesture.connect (sigc::bind (sigc::mem_fun (*this, &PannerUI::start_touch),
boost::weak_ptr<AutomationControl> (ac)));
bc->StopGesture.connect (sigc::bind (sigc::mem_fun (*this, &PannerUI::stop_touch),
boost::weak_ptr<AutomationControl>(ac)));
}
char buf[64];
snprintf (buf, sizeof (buf), _("panner for channel %zu"), asz + 1);
ARDOUR_UI::instance()->set_tip (bc->event_widget(), buf);
bc->event_widget().signal_button_release_event().connect
(sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) asz));
bc->set_size_request (-1, pan_bar_height);
bc->SpinnerActive.connect (sigc::mem_fun (*this, &PannerUI::bar_spinner_activate));
pan_bars.push_back (bc);
pan_bar_packer.pack_start (*bc, false, false);
}
/* now that we actually have the pan bars,
set their sensitivity based on current
automation state.
*/
update_pan_sensitive ();
panning_viewport.remove ();
panning_viewport.add (pan_bar_packer);
panning_viewport.show_all ();
if (npans == 2) {
/* add position and width controls */
if (_stereo_panner == 0) {
_stereo_panner = new StereoPanner (_panner->direction_control(),
_panner->width_control());
poswidth_box.pack_start (*_stereo_panner, true, true);
}
pan_vbox.pack_start (poswidth_box, false, false);
poswidth_box.show_all ();
cerr << "Packed poswidth and mde it visible\n";
} else {
if (_stereo_panner) {
pan_vbox.remove (poswidth_box);
cerr << "Hid poswidth\n";
}
}
} else {
if (!twod_panner) {
twod_panner = new Panner2d (_panner, 61);
twod_panner->set_name ("MixerPanZone");
twod_panner->show ();
twod_panner->signal_button_press_event().connect
(sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) 0), false);
}
update_pan_sensitive ();
twod_panner->reset (npans);
if (big_window) {
big_window->reset (npans);
}
twod_panner->set_size_request (-1, 61);
/* and finally, add it to the panner frame */
panning_viewport.remove ();
panning_viewport.add (*twod_panner);
panning_viewport.show_all ();
}
}
void
PannerUI::start_touch (boost::weak_ptr<AutomationControl> wac)
{
boost::shared_ptr<AutomationControl> ac = wac.lock();
if (!ac) {
return;
}
ac->start_touch (ac->session().transport_frame());
}
void
PannerUI::stop_touch (boost::weak_ptr<AutomationControl> wac)
{
boost::shared_ptr<AutomationControl> ac = wac.lock();
if (!ac) {
return;
}
ac->stop_touch (false, ac->session().transport_frame());
}
bool
PannerUI::pan_button_event (GdkEventButton* ev, uint32_t which)
{
switch (ev->button) {
case 1:
if (twod_panner && ev->type == GDK_2BUTTON_PRESS) {
if (!big_window) {
big_window = new Panner2dWindow (_panner, 400, _panner->npanners());
}
big_window->show ();
return true;
}
break;
case 3:
if (pan_menu == 0) {
pan_menu = manage (new Menu);
pan_menu->set_name ("ArdourContextMenu");
}
build_pan_menu (which);
pan_menu->popup (1, ev->time);
return true;
break;
default:
return false;
}
return false; // what's wrong with gcc?
}
void
PannerUI::build_pan_menu (uint32_t which)
{
using namespace Menu_Helpers;
MenuList& items (pan_menu->items());
items.clear ();
items.push_back (CheckMenuElem (_("Mute")));
/* set state first, connect second */
(dynamic_cast<CheckMenuItem*> (&items.back()))->set_active (_panner->streampanner(which).muted());
(dynamic_cast<CheckMenuItem*> (&items.back()))->signal_toggled().connect
(sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_mute), which));
items.push_back (CheckMenuElem (_("Bypass"), sigc::mem_fun(*this, &PannerUI::pan_bypass_toggle)));
bypass_menu_item = static_cast<CheckMenuItem*> (&items.back());
/* set state first, connect second */
bypass_menu_item->set_active (_panner->bypassed());
bypass_menu_item->signal_toggled().connect (sigc::mem_fun(*this, &PannerUI::pan_bypass_toggle));
items.push_back (MenuElem (_("Reset"), sigc::bind (sigc::mem_fun (*this, &PannerUI::pan_reset), which)));
items.push_back (SeparatorElem());
items.push_back (MenuElem (_("Reset all"), sigc::mem_fun (*this, &PannerUI::pan_reset_all)));
}
void
PannerUI::pan_mute (uint32_t which)
{
StreamPanner& sp = _panner->streampanner(which);
sp.set_muted (!sp.muted());
}
void
PannerUI::pan_bypass_toggle ()
{
if (bypass_menu_item && (_panner->bypassed() != bypass_menu_item->get_active())) {
_panner->set_bypassed (!_panner->bypassed());
}
}
void
PannerUI::pan_reset (uint32_t which)
{
_panner->reset_streampanner (which);
}
void
PannerUI::pan_reset_all ()
{
_panner->reset_to_default ();
}
void
PannerUI::effective_pan_display ()
{
if (_panner->empty()) {
return;
}
switch (_panner->nouts()) {
case 0:
case 1:
/* relax */
break;
case 2:
update_pan_bars (true);
break;
default:
//panner->move_puck (pan_value (v, right), 0.5);
break;
}
}
void
PannerUI::pan_adjustment_changed (uint32_t which)
{
if (!in_pan_update && which < _panner->npanners()) {
float val = pan_adjustments[which]->get_value ();
float const xpos = _panner->pan_control(which)->get_value();
/* add a kinda-sorta detent for the middle */
if (val != 0.5 && Panner::equivalent (val, 0.5)) {
/* this is going to be reentrant, so just
return after it.
*/
in_pan_update = true;
pan_adjustments[which]->set_value (0.5);
in_pan_update = false;
return;
}
if (!Panner::equivalent (val, xpos)) {
_panner->pan_control(which)->set_value (val);
/* XXX
the panner objects have no access to the session,
so do this here. ick.
*/
_session->set_dirty();
}
}
}
void
PannerUI::pan_value_changed (uint32_t which)
{
ENSURE_GUI_THREAD (*this, &PannerUI::pan_value_changed, which)
if (twod_panner) {
in_pan_update = true;
twod_panner->move_puck (which, _panner->streampanner(which).get_position());
in_pan_update = false;
} else if (_panner->npanners() > 0 && which < _panner->npanners()) {
AngularVector model = _panner->streampanner(which).get_position();
double fract = pan_adjustments[which]->get_value();
AngularVector view (BaseStereoPanner::lr_fract_to_azimuth (fract), 0.0);
if (!Panner::equivalent (model, view)) {
in_pan_update = true;
pan_adjustments[which]->set_value (BaseStereoPanner::azimuth_to_lr_fract (model.azi));
in_pan_update = false;
}
}
}
void
PannerUI::update_pan_bars (bool only_if_aplay)
{
uint32_t n;
vector<Adjustment*>::iterator i;
in_pan_update = true;
/* this runs during automation playback, and moves the bar controllers
and/or pucks around.
*/
for (i = pan_adjustments.begin(), n = 0; i != pan_adjustments.end(); ++i, ++n) {
if (only_if_aplay) {
boost::shared_ptr<AutomationList> alist (_panner->streampanner(n).pan_control()->alist());
if (!alist->automation_playback()) {
continue;
}
}
AngularVector model = _panner->streampanner(n).get_effective_position();
double fract = (*i)->get_value();
AngularVector view (BaseStereoPanner::lr_fract_to_azimuth (fract), 0.0);
if (!Panner::equivalent (model, view)) {
(*i)->set_value (BaseStereoPanner::azimuth_to_lr_fract (model.azi));
}
}
in_pan_update = false;
}
void
PannerUI::update_pan_sensitive ()
{
bool const sensitive = !(_panner->mono()) && !(_panner->automation_state() & Play);
switch (_panner->nouts()) {
case 0:
case 1:
break;
case 2:
for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
(*i)->set_sensitive (sensitive);
}
break;
default:
if (twod_panner) {
twod_panner->set_sensitive (sensitive);
}
if (big_window) {
big_window->set_sensitive (sensitive);
}
break;
}
}
gint
PannerUI::pan_automation_state_button_event (GdkEventButton *ev)
{
using namespace Menu_Helpers;
if (ev->type == GDK_BUTTON_RELEASE) {
return TRUE;
}
switch (ev->button) {
case 1:
if (pan_astate_menu == 0) {
build_astate_menu ();
}
pan_astate_menu->popup (1, ev->time);
break;
default:
break;
}
return TRUE;
}
gint
PannerUI::pan_automation_style_button_event (GdkEventButton *ev)
{
if (ev->type == GDK_BUTTON_RELEASE) {
return TRUE;
}
switch (ev->button) {
case 1:
if (pan_astyle_menu == 0) {
build_astyle_menu ();
}
pan_astyle_menu->popup (1, ev->time);
break;
default:
break;
}
return TRUE;
}
void
PannerUI::pan_automation_style_changed ()
{
ENSURE_GUI_THREAD (*this, &PannerUI::pan_automation_style_changed)
switch (_width) {
case Wide:
pan_automation_style_button.set_label (astyle_string(_panner->automation_style()));
break;
case Narrow:
pan_automation_style_button.set_label (short_astyle_string(_panner->automation_style()));
break;
}
}
void
PannerUI::pan_automation_state_changed ()
{
ENSURE_GUI_THREAD (*this, &PannerUI::pan_automation_state_changed)
bool x;
switch (_width) {
case Wide:
pan_automation_state_button.set_label (astate_string(_panner->automation_state()));
break;
case Narrow:
pan_automation_state_button.set_label (short_astate_string(_panner->automation_state()));
break;
}
/* when creating a new session, we get to create busses (and
sometimes tracks) with no outputs by the time they get
here.
*/
if (_panner->empty()) {
return;
}
x = (_panner->streampanner(0).pan_control()->alist()->automation_state() != Off);
if (pan_automation_state_button.get_active() != x) {
ignore_toggle = true;
pan_automation_state_button.set_active (x);
ignore_toggle = false;
}
update_pan_sensitive ();
/* start watching automation so that things move */
pan_watching.disconnect();
if (x) {
pan_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &PannerUI::effective_pan_display));
}
}
string
PannerUI::astate_string (AutoState state)
{
return _astate_string (state, false);
}
string
PannerUI::short_astate_string (AutoState state)
{
return _astate_string (state, true);
}
string
PannerUI::_astate_string (AutoState state, bool shrt)
{
string sstr;
switch (state) {
case Off:
sstr = (shrt ? "M" : _("M"));
break;
case Play:
sstr = (shrt ? "P" : _("P"));
break;
case Touch:
sstr = (shrt ? "T" : _("T"));
break;
case Write:
sstr = (shrt ? "W" : _("W"));
break;
}
return sstr;
}
string
PannerUI::astyle_string (AutoStyle style)
{
return _astyle_string (style, false);
}
string
PannerUI::short_astyle_string (AutoStyle style)
{
return _astyle_string (style, true);
}
string
PannerUI::_astyle_string (AutoStyle style, bool shrt)
{
if (style & Trim) {
return _("Trim");
} else {
/* XXX it might different in different languages */
return (shrt ? _("Abs") : _("Abs"));
}
}
void
PannerUI::set_mono (bool yn)
{
_panner->set_mono (yn);
update_pan_sensitive ();
}
void
PannerUI::connect_to_pan_control (uint32_t i)
{
_panner->pan_control(i)->Changed.connect (
_pan_control_connections, invalidator (*this), boost::bind (&PannerUI::pan_value_changed, this, i), gui_context ()
);
}
void
PannerUI::bar_spinner_activate (bool a)
{
_bar_spinner_active = a;
}
void
PannerUI::show_width ()
{
}
void
PannerUI::width_adjusted ()
{
}
void
PannerUI::show_position ()
{
}
void
PannerUI::position_adjusted ()
{
}
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