Don't handle possible phase change if no audio channels in mackie control
[ardour.git] / libs / surfaces / mackie / strip.cc
index 5826ec37421e213e168fd4ba1b2a67e266351f27..4def2bc6ec15c3ac281ebd2cad1d0393e2694b00 100644 (file)
@@ -43,6 +43,7 @@
 #include "ardour/session.h"
 #include "ardour/send.h"
 #include "ardour/track.h"
+#include "ardour/midi_track.h"
 #include "ardour/user_bundle.h"
 
 #include "mackie_control_protocol.h"
@@ -95,6 +96,7 @@ Strip::Strip (Surface& s, const std::string& name, int index, const map<Button::
        , _block_vpot_mode_redisplay_until (0)
        , _block_screen_redisplay_until (0)
        , _pan_mode (PanAzimuthAutomation)
+       , _trim_mode (TrimAutomation)
        , _last_gain_position_written (-1.0)
        , _last_pan_azi_position_written (-1.0)
        , _last_pan_width_position_written (-1.0)
@@ -183,6 +185,7 @@ Strip::set_route (boost::shared_ptr<Route> r, bool /*with_messages*/)
        control_by_parameter[PanLFEAutomation] = (Control*) 0;
        control_by_parameter[GainAutomation] = (Control*) 0;
        control_by_parameter[TrimAutomation] = (Control*) 0;
+       control_by_parameter[PhaseAutomation] = (Control*) 0;
 
        reset_saved_values ();
 
@@ -197,19 +200,20 @@ Strip::set_route (boost::shared_ptr<Route> r, bool /*with_messages*/)
        _solo->set_control (_route->solo_control());
        _mute->set_control (_route->mute_control());
 
-       _pan_mode = PanAzimuthAutomation;
-       potmode_changed (true);
-
-
        _route->solo_changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&Strip::notify_solo_changed, this), ui_context());
        _route->listen_changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&Strip::notify_solo_changed, this), ui_context());
 
        _route->mute_control()->Changed.connect(route_connections, MISSING_INVALIDATOR, boost::bind (&Strip::notify_mute_changed, this), ui_context());
 
-       if (_route->trim()) {
+       if (_route->trim() && route()->trim()->active()) {
                _route->trim_control()->Changed.connect(route_connections, MISSING_INVALIDATOR, boost::bind (&Strip::notify_trim_changed, this, false), ui_context());
        }
 
+       if (_route->phase_invert().size()) {
+               _route->phase_invert_changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&Strip::notify_phase_changed, this, false), ui_context());
+               _route->phase_control()->set_channel(0);
+       }
+
        boost::shared_ptr<Pannable> pannable = _route->pannable();
 
        if (pannable && _route->panner()) {
@@ -234,10 +238,6 @@ Strip::set_route (boost::shared_ptr<Route> r, bool /*with_messages*/)
        _route->active_changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&Strip::notify_active_changed, this), ui_context());
        _route->DropReferences.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&Strip::notify_route_deleted, this), ui_context());
 
-       /* Update */
-
-       notify_all ();
-
        /* setup legal VPot modes for this route */
 
        possible_pot_parameters.clear();
@@ -257,6 +257,30 @@ Strip::set_route (boost::shared_ptr<Route> r, bool /*with_messages*/)
                        }
                }
        }
+
+       if (_route->trim() && route()->trim()->active()) {
+               possible_pot_parameters.push_back (TrimAutomation);
+       }
+
+       possible_trim_parameters.clear();
+
+       if (_route->trim() && route()->trim()->active()) {
+               possible_trim_parameters.push_back (TrimAutomation);
+               _trim_mode = TrimAutomation;
+       }
+
+       if (_route->phase_invert().size()) {
+               possible_trim_parameters.push_back (PhaseAutomation);
+               if (_trim_mode != TrimAutomation) {
+                       _trim_mode = PhaseAutomation;
+               }
+       }
+
+       /* Update */
+       _pan_mode = PanAzimuthAutomation;
+       potmode_changed (false);
+       notify_all ();
+
 }
 
 void
@@ -275,6 +299,7 @@ Strip::notify_all()
        notify_panner_width_changed ();
        notify_record_enable_changed ();
        notify_trim_changed ();
+       notify_phase_changed ();
 }
 
 void
@@ -360,11 +385,18 @@ Strip::notify_trim_changed (bool force_update)
 {
        if (_route) {
 
-               if (!_route->trim()) {
+               if (!_route->trim() || !route()->trim()->active()) {
                        _surface->write (_vpot->zero());
                        return;
                }
-               Control* control = control_by_parameter[TrimAutomation];
+               Control* control = 0;
+               ControlParameterMap::iterator i = control_by_parameter.find (TrimAutomation);
+
+               if (i == control_by_parameter.end()) {
+                       return;
+               }
+
+               control = i->second;
 
                boost::shared_ptr<AutomationControl> ac = _route->trim_control();
 
@@ -386,6 +418,38 @@ Strip::notify_trim_changed (bool force_update)
        }
 }
 
+void
+Strip::notify_phase_changed (bool force_update)
+{
+       if (_route) {
+               if (!_route->phase_invert().size()) {
+                       _surface->write (_vpot->zero());
+                       return;
+               }
+
+               Control* control = 0;
+               ControlParameterMap::iterator i = control_by_parameter.find (PhaseAutomation);
+
+               if (i == control_by_parameter.end()) {
+                       return;
+               }
+
+               control = i->second;
+
+               float normalized_position = _route->phase_control()->get_value();
+
+               if (control == _fader) {
+                       if (!_fader->in_use()) {
+                               _surface->write (_fader->set_position (normalized_position));
+                               queue_parameter_display (PhaseAutomation, normalized_position);
+                       }
+               } else if (control == _vpot) {
+                       _surface->write (_vpot->set (normalized_position, true, Pot::wrap));
+                       queue_parameter_display (PhaseAutomation, normalized_position);
+               }
+       }
+}
+
 void
 Strip::notify_property_changed (const PropertyChange& what_changed)
 {
@@ -428,12 +492,15 @@ Strip::notify_panner_azi_changed (bool force_update)
                        return;
                }
 
-               Control* control = control_by_parameter[PanAzimuthAutomation];
+               Control* control = 0;
+               ControlParameterMap::iterator i = control_by_parameter.find (PanAzimuthAutomation);
 
-               if (!control) {
+               if (i == control_by_parameter.end()) {
                        return;
                }
 
+               control = i->second;
+
                double pos = pannable->pan_azimuth_control->internal_to_interface (pannable->pan_azimuth_control->get_value());
 
                if (force_update || pos != _last_pan_azi_position_written) {
@@ -448,7 +515,6 @@ Strip::notify_panner_azi_changed (bool force_update)
                                queue_parameter_display (PanAzimuthAutomation, pos);
                        }
 
-                       queue_parameter_display (PanAzimuthAutomation, pos);
                        _last_pan_azi_position_written = pos;
                }
        }
@@ -468,13 +534,15 @@ Strip::notify_panner_width_changed (bool force_update)
                        return;
                }
 
+               Control* control = 0;
+               ControlParameterMap::iterator i = control_by_parameter.find (PanWidthAutomation);
 
-               Control* control = control_by_parameter[PanWidthAutomation];
-
-               if (!control) {
+               if (i == control_by_parameter.end()) {
                        return;
                }
 
+               control = i->second;
+
                double pos = pannable->pan_width_control->internal_to_interface (pannable->pan_width_control->get_value());
 
                if (force_update || pos != _last_pan_azi_position_written) {
@@ -493,7 +561,6 @@ Strip::notify_panner_width_changed (bool force_update)
                                queue_parameter_display (PanWidthAutomation, pos);
                        }
 
-                       queue_parameter_display (PanWidthAutomation, pos);
                        _last_pan_azi_position_written = pos;
                }
        }
@@ -579,7 +646,7 @@ Strip::fader_touch_event (Button&, ButtonState bs)
                        _fader->start_touch (_surface->mcp().transport_frame());
 
                        if (ac) {
-                               queue_parameter_display ((AutomationType) ac->parameter().type(), ac->internal_to_interface (ac->get_value()));
+                               queue_parameter_display ((AutomationType) ac->parameter().type(), ac->get_value());
                        }
                }
 
@@ -715,6 +782,18 @@ Strip::do_parameter_display (AutomationType type, float val)
                        float dB = accurate_coefficient_to_dB (val);
                        snprintf (buf, sizeof (buf), "%6.1f", dB);
                        _surface->write (display (1, buf));
+                       screen_hold = true;
+               }
+               break;
+
+       case PhaseAutomation:
+               if (_route) {
+                       if (_route->phase_control()->get_value() < 0.5) {
+                               _surface->write (display (1, "Normal"));
+                       } else {
+                               _surface->write (display (1, "Invert"));
+                       }
+                       screen_hold = true;
                }
                break;
 
@@ -741,6 +820,10 @@ void
 Strip::handle_fader (Fader& fader, float position)
 {
        DEBUG_TRACE (DEBUG::MackieControl, string_compose ("fader to %1\n", position));
+       boost::shared_ptr<AutomationControl> ac = fader.control();
+       if (!ac) {
+               return;
+       }
 
        fader.set_value (position);
 
@@ -765,6 +848,9 @@ Strip::handle_pot (Pot& pot, float delta)
        */
 
        boost::shared_ptr<AutomationControl> ac = pot.control();
+       if (!ac) {
+               return;
+       }
        double p = pot.get_value ();
        p += delta;
        p = max (ac->lower(), p);
@@ -783,7 +869,9 @@ Strip::periodic (ARDOUR::microseconds_t now)
        }
 
        if (_block_screen_redisplay_until >= now) {
-
+               if (_surface->mcp().device_info().has_separate_meters()) {
+                       goto meters;
+               }
                /* no drawing here, for now */
                return;
 
@@ -818,6 +906,7 @@ Strip::periodic (ARDOUR::microseconds_t now)
                update_automation ();
        }
 
+  meters:
        update_meter ();
 }
 
@@ -857,7 +946,7 @@ Strip::update_automation ()
                        notify_panner_width_changed (false);
                }
        }
-       if (_route->trim()) {
+       if (_route->trim() && route()->trim()->active()) {
                ARDOUR::AutoState trim_state = _route->trim_control()->automation_state();
                if (trim_state == Touch || trim_state == Play) {
                        notify_trim_changed (false);
@@ -971,6 +1060,8 @@ Strip::vpot_mode_string () const
                return "Fader";
        case TrimAutomation:
                return "Trim";
+       case PhaseAutomation:
+               return string_compose ("Phase%1", _route->phase_control()->channel() + 1);
        case PanAzimuthAutomation:
                return "Pan";
        case PanWidthAutomation:
@@ -993,58 +1084,24 @@ Strip::potmode_changed (bool notify)
                return;
        }
 
-       if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
-               /* do not change vpot mode while in flipped mode */
-               DEBUG_TRACE (DEBUG::MackieControl, "not stepping pot mode - in flip mode\n");
-               _surface->write (display (1, "Flip"));
-               block_vpot_mode_display_for (1000);
-               return;
-       }
        // WIP
        int pm = _surface->mcp().pot_mode();
        switch (pm) {
-               case MackieControlProtocol::Pan:
-                       // This needs to set current pan mode (azimuth or width... or whatever)
-                       set_vpot_parameter (_pan_mode);
-                       DEBUG_TRACE (DEBUG::MackieControl, "Assign pot to Pan mode.\n");
-                       break;
-               case MackieControlProtocol::Tracks: // should change the Tracks to Trim
-                       DEBUG_TRACE (DEBUG::MackieControl, "Assign pot to Trim mode.\n");
-                       set_vpot_parameter (TrimAutomation);
-                       break;
-               case MackieControlProtocol::Send:
-                       DEBUG_TRACE (DEBUG::MackieControl, "Assign pot to Send mode.\n");
-                       // set to current send
-                       break;
-               default:
-                       break;
-               }
-
-       if (notify) {
-               notify_all ();
-       }
-}
-
-void
-Strip::flip_mode_changed (bool notify)
-{
-       if (!_route) {
-               return;
+       case MackieControlProtocol::Pan:
+               // This needs to set current pan mode (azimuth or width... or whatever)
+               DEBUG_TRACE (DEBUG::MackieControl, string_compose ("Assign pot to Pan mode %1\n", enum_2_string (_pan_mode)));
+               set_vpot_parameter (_pan_mode);
+               break;
+       case MackieControlProtocol::Trim:
+               DEBUG_TRACE (DEBUG::MackieControl, "Assign pot to Trim mode.\n");
+               set_vpot_parameter (_trim_mode);
+               break;
+       case MackieControlProtocol::Send:
+               DEBUG_TRACE (DEBUG::MackieControl, "Assign pot to Send mode.\n");
+               set_vpot_parameter (SendAutomation);
+               break;
        }
 
-       reset_saved_values ();
-
-       boost::shared_ptr<AutomationControl> fader_controllable = _fader->control ();
-       boost::shared_ptr<AutomationControl> vpot_controllable = _vpot->control ();
-
-       _fader->set_control (vpot_controllable);
-       _vpot->set_control (fader_controllable);
-
-       control_by_parameter[fader_controllable->parameter()] = _vpot;
-       control_by_parameter[vpot_controllable->parameter()] = _fader;
-
-       _surface->write (display (1, vpot_mode_string ()));
-
        if (notify) {
                notify_all ();
        }
@@ -1118,7 +1175,40 @@ Strip::next_pot_mode ()
                        i = possible_pot_parameters.begin();
                }
                set_vpot_parameter (*i);
+       } else if (_surface->mcp().pot_mode() == MackieControlProtocol::Trim) {
+                               if (possible_trim_parameters.empty() || (possible_trim_parameters.size() == 1 && possible_trim_parameters.front() == ac->parameter())) {
+                       return;
+               }
+
+               for (i = possible_trim_parameters.begin(); i != possible_trim_parameters.end(); ++i) {
+                       if ((*i) == ac->parameter()) {
+                               break;
+                       }
+               }
+               if ((*i).type() == PhaseAutomation && _route->phase_invert().size() > 1) {
+                       // There are more than one channel of phase
+                       if ((_route->phase_control()->channel() + 1) < _route->phase_invert().size()) {
+                               _route->phase_control()->set_channel(_route->phase_control()->channel() + 1);
+                               set_vpot_parameter (*i);
+                               return;
+                       } else {
+                               _route->phase_control()->set_channel(0);
+                       }
+               }
+               /* move to the next mode in the list, or back to the start (which will
+               also happen if the current mode is not in the current pot mode list)
+               */
+
+               if (i != possible_trim_parameters.end()) {
+                       ++i;
+               }
+
+               if (i == possible_trim_parameters.end()) {
+                       i = possible_trim_parameters.begin();
+               }
+               set_vpot_parameter (*i);
        }
+
 }
 
 void
@@ -1126,12 +1216,16 @@ Strip::set_vpot_parameter (Evoral::Parameter p)
 {
        boost::shared_ptr<Pannable> pannable;
 
-       DEBUG_TRACE (DEBUG::MackieControl, string_compose ("switch to vpot mode %1\n", p));
+       DEBUG_TRACE (DEBUG::MackieControl, string_compose ("switch to vpot mode %1\n", p.type()));
 
        reset_saved_values ();
-       for (int i = 0;  i <= TrimAutomation; ++i) {
-               if (control_by_parameter[i] == _vpot) {
-                       control_by_parameter[i] = 0;
+
+       /* unset any mapping between the vpot and any existing parameters */
+
+       for (ControlParameterMap::iterator i = control_by_parameter.begin(); i != control_by_parameter.end(); ++i) {
+
+               if (i != control_by_parameter.end() && i->second == _vpot) {
+                       i->second = 0;
                }
        }
 
@@ -1139,58 +1233,54 @@ Strip::set_vpot_parameter (Evoral::Parameter p)
        case PanAzimuthAutomation:
                _pan_mode = PanAzimuthAutomation;
                pannable = _route->pannable ();
-               if (pannable) {
-                       if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
-                               /* gain to vpot, pan azi to fader */
-                               _vpot->set_control (_route->gain_control());
-                               control_by_parameter[GainAutomation] = _vpot;
-                               if (pannable) {
-                                       _fader->set_control (pannable->pan_azimuth_control);
-                                       control_by_parameter[PanAzimuthAutomation] = _fader;
-                               } else {
-                                       _fader->set_control (boost::shared_ptr<AutomationControl>());
-                                       control_by_parameter[PanAzimuthAutomation] = 0;
-                               }
+               if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
+                       /* gain to vpot, pan azi to fader */
+                       _vpot->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _vpot;
+                       if (pannable) {
+                               _fader->set_control (pannable->pan_azimuth_control);
+                               control_by_parameter[PanAzimuthAutomation] = _fader;
                        } else {
-                               /* gain to fader, pan azi to vpot */
-                               _fader->set_control (_route->gain_control());
-                               control_by_parameter[GainAutomation] = _fader;
-                               if (pannable) {
-                                       _vpot->set_control (pannable->pan_azimuth_control);
-                                       control_by_parameter[PanAzimuthAutomation] = _vpot;
-                               } else {
-                                       _vpot->set_control (boost::shared_ptr<AutomationControl>());
-                                       control_by_parameter[PanAzimuthAutomation] = 0;
-                               }
+                               _fader->set_control (boost::shared_ptr<AutomationControl>());
+                               control_by_parameter[PanAzimuthAutomation] = 0;
+                       }
+               } else {
+                       /* gain to fader, pan azi to vpot */
+                       _fader->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _fader;
+                       if (pannable) {
+                               _vpot->set_control (pannable->pan_azimuth_control);
+                               control_by_parameter[PanAzimuthAutomation] = _vpot;
+                       } else {
+                               _vpot->set_control (boost::shared_ptr<AutomationControl>());
+                               control_by_parameter[PanAzimuthAutomation] = 0;
                        }
                }
                break;
        case PanWidthAutomation:
                _pan_mode = PanWidthAutomation;
                pannable = _route->pannable ();
-               if (pannable) {
-                       if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
-                               /* gain to vpot, pan width to fader */
-                               _vpot->set_control (_route->gain_control());
-                               control_by_parameter[GainAutomation] = _vpot;
-                               if (pannable) {
-                                       _fader->set_control (pannable->pan_width_control);
-                                       control_by_parameter[PanWidthAutomation] = _fader;
-                               } else {
-                                       _fader->set_control (boost::shared_ptr<AutomationControl>());
-                                       control_by_parameter[PanWidthAutomation] = 0;
-                               }
+               if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
+                       /* gain to vpot, pan width to fader */
+                       _vpot->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _vpot;
+                       if (pannable) {
+                               _fader->set_control (pannable->pan_width_control);
+                               control_by_parameter[PanWidthAutomation] = _fader;
                        } else {
-                               /* gain to fader, pan width to vpot */
-                               _fader->set_control (_route->gain_control());
-                               control_by_parameter[GainAutomation] = _fader;
-                               if (pannable) {
-                                       _vpot->set_control (pannable->pan_width_control);
-                                       control_by_parameter[PanWidthAutomation] = _vpot;
-                               } else {
-                                       _vpot->set_control (boost::shared_ptr<AutomationControl>());
-                                       control_by_parameter[PanWidthAutomation] = 0;
-                               }
+                               _fader->set_control (boost::shared_ptr<AutomationControl>());
+                               control_by_parameter[PanWidthAutomation] = 0;
+                       }
+               } else {
+                       /* gain to fader, pan width to vpot */
+                       _fader->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _fader;
+                       if (pannable) {
+                               _vpot->set_control (pannable->pan_width_control);
+                               control_by_parameter[PanWidthAutomation] = _vpot;
+                       } else {
+                               _vpot->set_control (boost::shared_ptr<AutomationControl>());
+                               control_by_parameter[PanWidthAutomation] = 0;
                        }
                }
                break;
@@ -1201,23 +1291,69 @@ Strip::set_vpot_parameter (Evoral::Parameter p)
        case PanLFEAutomation:
                break;
        case TrimAutomation:
-               if (_route->trim()) {
-                       if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
-                               /* gain to vpot, trim to fader */
-                               _vpot->set_control (_route->gain_control());
-                               control_by_parameter[GainAutomation] = _vpot;
-                                       _fader->set_control (_route->trim_control());
-                                       control_by_parameter[TrimAutomation] = _fader;
+               _trim_mode = TrimAutomation;
+               if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
+                       /* gain to vpot, trim to fader */
+                       _vpot->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _vpot;
+                       if (_route->trim() && route()->trim()->active()) {
+                               _fader->set_control (_route->trim_control());
+                               control_by_parameter[TrimAutomation] = _fader;
+                       } else {
+                               _fader->set_control (boost::shared_ptr<AutomationControl>());
+                               control_by_parameter[TrimAutomation] = 0;
+                       }
+               } else {
+                       /* gain to fader, trim to vpot */
+                       _fader->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _fader;
+                       if (_route->trim() && route()->trim()->active()) {
+                               _vpot->set_control (_route->trim_control());
+                               control_by_parameter[TrimAutomation] = _vpot;
+                       } else {
+                               _vpot->set_control (boost::shared_ptr<AutomationControl>());
+                               control_by_parameter[TrimAutomation] = 0;
+                       }
+               }
+               break;
+       case PhaseAutomation:
+               _trim_mode = PhaseAutomation;
+               if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
+                       /* gain to vpot, phase to fader */
+                       _vpot->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _vpot;
+                       if (_route->phase_invert().size()) {
+                               _fader->set_control (_route->phase_control());
+                               control_by_parameter[PhaseAutomation] = _fader;
                        } else {
-                               /* gain to fader, trim to vpot */
-                               _fader->set_control (_route->gain_control());
-                               control_by_parameter[GainAutomation] = _fader;
-                                       _vpot->set_control (_route->trim_control());
-                                       control_by_parameter[TrimAutomation] = _vpot;
+                               _fader->set_control (boost::shared_ptr<AutomationControl>());
+                               control_by_parameter[PhaseAutomation] = 0;
                        }
                } else {
+                       /* gain to fader, phase to vpot */
+                       _fader->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _fader;
+                       if (_route->phase_invert().size()) {
+                               _vpot->set_control (_route->phase_control());
+                               control_by_parameter[PhaseAutomation] = _vpot;
+                       } else {
+                               _vpot->set_control (boost::shared_ptr<AutomationControl>());
+                               control_by_parameter[PhaseAutomation] = 0;
+                       }
+               }
+               break;
+       case SendAutomation:
+               // deal with sends ... needs sends yet :)
+               if (_surface->mcp().flip_mode() != MackieControlProtocol::Normal) {
+                       // gain to vpot, trim to fader
+                       _vpot->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _vpot;
+                       _fader->set_control (boost::shared_ptr<AutomationControl>());
+               } else {
+                       // gain to fader, trim to vpot
+                       _fader->set_control (_route->gain_control());
+                       control_by_parameter[GainAutomation] = _fader;
                        _vpot->set_control (boost::shared_ptr<AutomationControl>());
-                       control_by_parameter[TrimAutomation] = 0;
                }
                break;
        default:
@@ -1229,6 +1365,12 @@ Strip::set_vpot_parameter (Evoral::Parameter p)
        _surface->write (display (1, vpot_mode_string()));
 }
 
+bool
+Strip::is_midi_track () const
+{
+       return boost::dynamic_pointer_cast<MidiTrack>(_route) != 0;
+}
+
 void
 Strip::reset_saved_values ()
 {