PlayerControl.cpp

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/*
 * Hydrogen
 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
 * Copyright(c) 2008-2024 The hydrogen development team [hydrogen-devel@lists.sourceforge.net]
 *
 * http://www.hydrogen-music.org
 *
 * 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, see 
https://www.gnu.org/licenses
 *
 */
 
 
#include "Skin.h"
#include "CommonStrings.h"
#include "PlayerControl.h"
#include "InstrumentRack.h"
#include "HydrogenApp.h"
 
#include "Widgets/ClickableLabel.h"
#include "Widgets/LCDDisplay.h"
#include "Widgets/LCDSpinBox.h"
#include "Widgets/LED.h"
#include "Widgets/Button.h"
#include "Widgets/CpuLoadWidget.h"
#include "Widgets/PixmapWidget.h"
#include "Widgets/StatusMessageDisplay.h"
 
#include "Mixer/Mixer.h"
#include "SongEditor/SongEditorPanel.h"
#include "PatternEditor/PatternEditorPanel.h"
#include "InstrumentEditor/InstrumentEditorPanel.h"
 
#include <core/Hydrogen.h>
#include <core/Basics/Song.h>
#include <core/AudioEngine/AudioEngine.h>
#include <core/AudioEngine/TransportPosition.h>
#include <core/IO/JackAudioDriver.h>
#include <core/EventQueue.h>
using namespace H2Core;
 
 
//beatconter global
int bcDisplaystatus = 0;
// ~ beatcounter
 
PlayerControl::PlayerControl(QWidget *parent)
 : QLabel(parent)
 , m_midiActivityTimeout( 125 )
 , m_bLCDBPMSpinboxIsArmed( true )
{
 
        m_pHydrogen = Hydrogen::get_instance();
        
        setObjectName( "PlayerControl" );
        HydrogenApp::get_instance()->addEventListener( this );
 
        auto pPref = H2Core::Preferences::get_instance();
        auto pSong = m_pHydrogen->getSong();
        auto pCommonStrings = HydrogenApp::get_instance()->getCommonStrings();
        
        // Background image
        setPixmap( QPixmap( Skin::getImagePath() + "/playerControlPanel/background.png" ) );
        setScaledContents( true );
 
        QHBoxLayout *hbox = new QHBoxLayout();
        hbox->setSpacing( 0 );
        hbox->setMargin( 0 );
        setLayout( hbox );
 
// CONTROLS
        PixmapWidget *pControlsPanel = new PixmapWidget( nullptr );
        pControlsPanel->setFixedSize( 344, 43 );
        pControlsPanel->setPixmap( "/playerControlPanel/background_Control.png" );
        pControlsPanel->setObjectName( "ControlsPanel" );
        hbox->addWidget( pControlsPanel );
 
        m_pTimeDisplay = new LCDDisplay( pControlsPanel, QSize( 146, 22 ), true, false );
        m_pTimeDisplay->move( 13, 7 );
        m_pTimeDisplay->setAlignment( Qt::AlignRight );
        m_pTimeDisplay->setText( "00:00:00:000" );
        m_pTimeDisplay->setStyleSheet( m_pTimeDisplay->styleSheet().
                                                                   append(" QLineEdit { font-size: 19px; }" ) );
 
        m_pTimeHoursLbl = new ClickableLabel( pControlsPanel, QSize( 33, 9 ),
                                                                                  pCommonStrings->getTimeHoursLabel() );
        m_pTimeHoursLbl->move( 22, 30 );
        m_pTimeMinutesLbl = new ClickableLabel( pControlsPanel, QSize( 33, 9 ),
                                                                                        pCommonStrings->getTimeMinutesLabel() );
        m_pTimeMinutesLbl->move( 53, 30 );
        m_pTimeSecondsLbl = new ClickableLabel( pControlsPanel, QSize( 33, 9 ),
                                                                                        pCommonStrings->getTimeSecondsLabel() );
        m_pTimeSecondsLbl->move( 83, 30 );
        m_pTimeMilliSecondsLbl = new ClickableLabel( pControlsPanel, QSize( 34, 9 ),
                                                                                                 pCommonStrings->getTimeMilliSecondsLabel() );
        m_pTimeMilliSecondsLbl->move( 119, 30 );
 
        // Rewind button
        m_pRwdBtn = new Button( pControlsPanel, QSize( 25, 19 ), Button::Type::Push,
                                                        "rewind.svg", "", false, QSize( 13, 13 ), tr("Rewind") );
        m_pRwdBtn->setObjectName( "PlayerControlRewindButton" );
        m_pRwdBtn->move( 166, 15 );
        connect(m_pRwdBtn, SIGNAL( clicked() ), this, SLOT( rewindBtnClicked() ));
        std::shared_ptr<Action> pAction = std::make_shared<Action>("<<_PREVIOUS_BAR");
        m_pRwdBtn->setAction( pAction );
 
        // Record button
        m_pRecBtn = new Button( pControlsPanel, QSize( 25, 19 ), Button::Type::Toggle,
                                                        "record.svg", "", false, QSize( 11, 11 ), tr("Record"), true );
        m_pRecBtn->setObjectName( "PlayerControlRecordButton" );
        m_pRecBtn->move( 193, 15 );
        m_pRecBtn->setChecked(false);
        m_pRecBtn->setHidden(false);
        connect(m_pRecBtn, SIGNAL( clicked() ), this, SLOT( recBtnClicked() ));
        pAction = std::make_shared<Action>("RECORD_READY");
        m_pRecBtn->setAction( pAction );
 
        // Play button
        m_pPlayBtn = new Button( pControlsPanel, QSize( 30, 21 ), Button::Type::Toggle,
                                                         "play_pause.svg", "", false, QSize( 30, 21 ), tr("Play/ Pause") );
        m_pPlayBtn->setObjectName( "PlayerControlPlayButton" );
        m_pPlayBtn->move( 220, 15 );
        m_pPlayBtn->setChecked(false);
        connect(m_pPlayBtn, SIGNAL( clicked() ), this, SLOT( playBtnClicked() ));
        pAction = std::make_shared<Action>("PLAY/PAUSE_TOGGLE");
        m_pPlayBtn->setAction( pAction );
 
        // Stop button
        m_pStopBtn = new Button( pControlsPanel, QSize( 25, 19 ), Button::Type::Push,
                                                         "stop.svg", "", false, QSize( 11, 11 ), tr("Stop") );
        m_pStopBtn->setObjectName( "PlayerControlStopButton" );
        m_pStopBtn->move( 252, 15 );
        connect(m_pStopBtn, SIGNAL( clicked() ), this, SLOT( stopBtnClicked() ));
        pAction = std::make_shared<Action>("STOP");
        m_pStopBtn->setAction( pAction );
 
        // Fast forward button
        m_pFfwdBtn = new Button( pControlsPanel, QSize( 25, 19 ), Button::Type::Push,
                                                         "fast_forward.svg", "", false, QSize( 13, 13 ), tr("Fast Forward") );
        m_pFfwdBtn->setObjectName( "PlayerControlForwardButton" );
        m_pFfwdBtn->move( 279, 15 );
        connect(m_pFfwdBtn, SIGNAL( clicked() ), this, SLOT( fastForwardBtnClicked() ));
        pAction = std::make_shared<Action>(">>_NEXT_BAR");
        m_pFfwdBtn->setAction( pAction );
 
        // Loop song button button
        m_pSongLoopBtn = new Button( pControlsPanel, QSize( 25, 19 ),
                                                                 Button::Type::Toggle, "loop.svg", "", false,
                                                                 QSize( 17, 13 ), tr("Loop song"),
                                                                 false, true );
        m_pSongLoopBtn->setObjectName( "PlayerControlLoopButton" );
        m_pSongLoopBtn->move( 308, 15);
        connect( m_pSongLoopBtn, &QPushButton::clicked,
                         [=]( bool bChecked ) { Hydrogen::get_instance()->getCoreActionController()->
                                         activateLoopMode( bChecked );
                         });
        if ( pSong->getLoopMode() == Song::LoopMode::Enabled ) {
                m_pSongLoopBtn->setChecked( true );
        }
 
        // Live mode button
        m_pPatternModeLED = new LED( pControlsPanel, QSize( 11, 9 ) );
        m_pPatternModeLED->move( 179, 4 );
        m_pPatternModeLED->setActivated( true );
        m_pPatternModeBtn = new Button( pControlsPanel, QSize( 59, 11 ),
                                                                        Button::Type::Toggle, "",
                                                                        pCommonStrings->getPatternModeButton(),
                                                                        false, QSize(), tr("Pattern Mode"),
                                                                        false, true );
        m_pPatternModeBtn->setObjectName( "PlayerControlPatternModeButton" );
        m_pPatternModeBtn->move( 190, 3 );
        m_pPatternModeBtn->setChecked(true);
        connect( m_pPatternModeBtn, &QPushButton::clicked,
                        [=]() { activateSongMode( false ); } );
 
        // Song mode button
        m_pSongModeLED = new LED( pControlsPanel, QSize( 11, 9 ) );
        m_pSongModeLED->move( 252, 4 );
        m_pSongModeBtn = new Button( pControlsPanel, QSize( 59, 11 ),
                                                                 Button::Type::Toggle, "",
                                                                 pCommonStrings->getSongModeButton(),
                                                                 false, QSize(), tr("Song Mode"),
                                                                 false, true );
        m_pSongModeBtn->setObjectName( "PlayerControlSongModeButton" );
        m_pSongModeBtn->move( 263, 3 );
        connect( m_pSongModeBtn, &QPushButton::clicked,
                        [=]() { activateSongMode( true ); } );
 
        if ( m_pHydrogen->getMode() == Song::Mode::Song ) {
                m_pSongModeBtn->setChecked( true );
                m_pPatternModeBtn->setChecked( false );
                m_pSongModeLED->setActivated( true );
                m_pPatternModeLED->setActivated( false );
        } else {
                m_pSongModeBtn->setChecked( false );
                m_pPatternModeBtn->setChecked( true );
                m_pSongModeLED->setActivated( false );
                m_pPatternModeLED->setActivated( true );
 
                m_pSongLoopBtn->setIsActive( false );
        }
        
 
 
// ~ CONTROLS
 
// BC on off
        QWidget *pControlsBBTBConoffPanel = new QWidget( nullptr );
        pControlsBBTBConoffPanel->setFixedSize( 15, 43 );
        pControlsBBTBConoffPanel->setObjectName( "BeatCounterOnOff" );
        hbox->addWidget( pControlsBBTBConoffPanel );
 
        m_sBCOnOffBtnToolTip = tr("Toggle the BeatCounter Panel");
        m_sBCOnOffBtnTimelineToolTip = tr( "Please deactivate the Timeline first in order to use the BeatCounter" );
        m_sBCOnOffBtnJackTimebaseToolTip = tr( "In the presence of an external JACK Timebase master the BeatCounter can not be used" );
        m_pBCOnOffBtn = new Button( pControlsBBTBConoffPanel, QSize( 13, 42 ),
                                                                Button::Type::Toggle, "",
                                                                pCommonStrings->getBeatCounterButton(), false,
                                                                QSize(), m_sBCOnOffBtnToolTip,
                                                                false, true );
        m_pBCOnOffBtn->move(0, 0);
        if ( pPref->m_bbc == Preferences::BC_ON ) {
                m_bLastBCOnOffBtnState = true;
        } else {
                m_bLastBCOnOffBtnState = false;
        }
        if ( m_pHydrogen->getTempoSource() != H2Core::Hydrogen::Tempo::Song ) {
                m_pBCOnOffBtn->setChecked( false );
                m_pBCOnOffBtn->setIsActive( false );
        } else {
                m_pBCOnOffBtn->setChecked( m_bLastBCOnOffBtnState );
        }
        updateBeatCounterToolTip();
                
        connect(m_pBCOnOffBtn, SIGNAL( clicked(bool) ), this, SLOT( activateBeatCounter(bool) ));
        pAction = std::make_shared<Action>("BEATCOUNTER");
        m_pBCOnOffBtn->setAction( pAction );
// ~  BC on off
 
//beatcounter
        m_pControlsBCPanel = new PixmapWidget( nullptr );
        m_pControlsBCPanel->setFixedSize( 86, 43 );
        m_pControlsBCPanel->setPixmap( "/playerControlPanel/beatConter_BG.png" );
        m_pControlsBCPanel->setObjectName( "BeatCounter" );
        hbox->addWidget( m_pControlsBCPanel );
 
 
        m_pBCDisplayZ = new QLabel( m_pControlsBCPanel );
        m_pBCDisplayZ->resize( QSize( 23, 13 ) );
        m_pBCDisplayZ->move( 45, 8 );
        m_pBCDisplayZ->setText( "--" );
 
        QLabel* pLabelBC1 = new QLabel( m_pControlsBCPanel );
        pLabelBC1->resize( QSize( 9, 11 ) );
        pLabelBC1->move( 25, 9 );
        pLabelBC1->setText( "1" );
        QLabel* pLabelBC2 = new QLabel( m_pControlsBCPanel );
        pLabelBC2->resize( QSize( 9, 3 ) );
        pLabelBC2->move( 25, 20 );
        pLabelBC2->setText( "—" );
        
        m_pBCDisplayT = new QLabel( m_pControlsBCPanel );
        m_pBCDisplayT->resize( QSize( 9, 11 ) );
        m_pBCDisplayT->move( 25, 25 );
        m_pBCDisplayT->setText( "4" );
 
        m_pBCDisplayB = new QLabel( m_pControlsBCPanel );
        m_pBCDisplayB->resize( QSize( 23, 11 ) );
        m_pBCDisplayB->move( 45, 25 );
        m_pBCDisplayB->setText( "04" );
 
        m_pBCTUpBtn = new Button( m_pControlsBCPanel, QSize( 19, 12 ),
                                                          Button::Type::Push, "plus.svg", "", false,
                                                          QSize( 8, 8 ), "", false, true );
        m_pBCTUpBtn->move( 2, 3 );
        connect( m_pBCTUpBtn, SIGNAL( clicked() ), this, SLOT( bctUpButtonClicked() ) );
 
        m_pBCTDownBtn = new Button( m_pControlsBCPanel, QSize( 19, 12 ),
                                                                Button::Type::Push, "minus.svg", "", false,
                                                                QSize( 8, 8 ), "", false, true );
        m_pBCTDownBtn->move( 2, 14 );
        connect( m_pBCTDownBtn, SIGNAL( clicked() ), this, SLOT( bctDownButtonClicked() ) );
 
        m_pBCBUpBtn = new Button( m_pControlsBCPanel, QSize( 19, 12 ),
                                                          Button::Type::Push, "plus.svg", "", false,
                                                          QSize( 8, 8 ), "", false, true );
        m_pBCBUpBtn->move( 64, 3 );
        connect( m_pBCBUpBtn, SIGNAL( clicked() ), this, SLOT( bcbUpButtonClicked() ) );
 
        m_pBCBDownBtn = new Button( m_pControlsBCPanel, QSize( 19, 12 ),
                                                                Button::Type::Push, "minus.svg", "", false,
                                                                QSize( 8, 8 ), "", false, true );
        m_pBCBDownBtn->move( 64, 14 );
        connect( m_pBCBDownBtn, SIGNAL( clicked() ), this, SLOT( bcbDownButtonClicked() ) );
 
        m_pBCSetPlayBtn = new Button( m_pControlsBCPanel, QSize( 19, 15 ),
                                                                  Button::Type::Push, "",
                                                                  pCommonStrings->getBeatCounterSetPlayButtonOff(),
                                                                  false, QSize(),
                                                                  tr("Set BPM / Set BPM and play"),
                                                                  false, true );
        m_pBCSetPlayBtn->setObjectName( "BeatCounterSetPlayButton" );
        m_pBCSetPlayBtn->move( 64, 25 );
        connect(m_pBCSetPlayBtn, SIGNAL( clicked() ), this, SLOT( bcSetPlayBtnClicked() ));
// ~ beatcounter
 
 
// BPM
        m_sLCDBPMSpinboxToolTip = tr("Alter the Playback Speed");
        m_sLCDBPMSpinboxTimelineToolTip = tr( "While the Timeline is active this widget is in read-only mode and just displays the tempo set using the current Timeline position" );
        m_sLCDBPMSpinboxJackTimebaseToolTip = tr( "In the presence of an external JACK Timebase master this widget just displays the tempo broadcasted by JACK" );
 
        PixmapWidget *pBPMPanel = new PixmapWidget( nullptr );
        pBPMPanel->setFixedSize( 145, 43 );
        pBPMPanel->setPixmap( "/playerControlPanel/background_BPM.png" );
        pBPMPanel->setObjectName( "BPM" );
        hbox->addWidget( pBPMPanel );
        m_pBPMLbl = new ClickableLabel( pBPMPanel, QSize( 26, 10 ),
                                                                        pCommonStrings->getBPMLabel(), ClickableLabel::Color::Dark );
        m_pBPMLbl->move( 36, 31 );
 
        // LCD BPM SpinBox
        m_pLCDBPMSpinbox = new LCDSpinBox( pBPMPanel, QSize( 95, 30), LCDSpinBox::Type::Double,
                                                                           static_cast<double>( MIN_BPM ),
                                                                           static_cast<double>( MAX_BPM ), true );
        m_pLCDBPMSpinbox->move( 36, 1 );
        m_pLCDBPMSpinbox->setStyleSheet( m_pLCDBPMSpinbox->styleSheet().
                                                                         append( " QAbstractSpinBox {font-size: 16px;}" ) );
        connect( m_pLCDBPMSpinbox, SIGNAL( valueChanged( double ) ),
                         this, SLOT( bpmChanged( double ) ) );
        // initialize BPM widget
        m_pLCDBPMSpinbox->setIsActive( m_pHydrogen->getTempoSource() ==
                                                                   H2Core::Hydrogen::Tempo::Song );
        m_pLCDBPMSpinbox->setValue( m_pHydrogen->getAudioEngine()->getTransportPosition()->getBpm() );
        updateBPMSpinboxToolTip();
 
        m_pRubberBPMChange = new Button( pBPMPanel, QSize( 13, 42 ),
                                                                         Button::Type::Toggle, "",
                                                                         pCommonStrings->getRubberbandButton(),
                                                                         false, QSize(),
                                                                         tr("Recalculate Rubberband modified samples if bpm will change"),
                                                                         false, true );
        m_pRubberBPMChange->setObjectName( "PlayerControlRubberbandButton" );
        m_pRubberBPMChange->move( 131, 0 );
        m_pRubberBPMChange->setChecked( pPref->getRubberBandBatchMode());
        connect( m_pRubberBPMChange, SIGNAL( clicked() ), this, SLOT( rubberbandButtonToggle() ) );
        QString program = pPref->m_rubberBandCLIexecutable;
        //test the path. if test fails, no button
        if ( QFile( program ).exists() == false) {
                m_pRubberBPMChange->hide();
        }
 
        m_pMetronomeLED = new MetronomeLED( pBPMPanel, QSize( 22, 7 ) );
        m_pMetronomeLED->move( 7, 32 );
 
        m_pMetronomeBtn = new Button( pBPMPanel, QSize( 24, 28 ),
                                                                  Button::Type::Toggle, "metronome.svg", "",
                                                                  false, QSize( 20, 20 ),
                                                                  tr("Switch metronome on/off"),
                                                                  false, true );
        m_pMetronomeBtn->setObjectName( "MetronomeButton" );
        m_pMetronomeBtn->move( 6, 2 );
        connect( m_pMetronomeBtn, SIGNAL( clicked() ), this, SLOT( metronomeButtonClicked() ) );
        pAction = std::make_shared<Action>("TOGGLE_METRONOME");
        m_pMetronomeBtn->setAction( pAction );
        m_pMetronomeBtn->setChecked( pPref->m_bUseMetronome );
 
// ~ BPM
 
 
// JACK
        PixmapWidget *pJackPanel = new PixmapWidget( nullptr );
        pJackPanel->setFixedSize( 113, 43 );
        pJackPanel->setPixmap( "/playerControlPanel/background_Jack.png" );
        pJackPanel->setObjectName( "JackPanel" );
        hbox->addWidget( pJackPanel );
 
        // Jack transport mode button
 
        /*: Using the JACK the audio/midi input and output ports of any
          number of application can be connected.*/
        m_pJackTransportBtn = new Button( pJackPanel, QSize( 53, 16 ),
                                                                          Button::Type::Toggle, "",
                                                                          pCommonStrings->getJackTransportButton(),
                                                                          false, QSize(),
                                                                          tr("JACK transport on/off"),
                                                                          false, true );
        m_pJackTransportBtn->setObjectName( "PlayerControlJackTransportButton" );
        if ( ! m_pHydrogen->hasJackAudioDriver() ) {
                m_pJackTransportBtn->hide();
        }
        if ( m_pHydrogen->hasJackTransport() ) {
                m_pJackTransportBtn->setChecked( true );
        } else {
                m_pJackTransportBtn->setChecked( false );
        }
        connect(m_pJackTransportBtn, SIGNAL( clicked() ), this, SLOT( jackTransportBtnClicked() ));
        m_pJackTransportBtn->move( 3, 24 );
 
        //jack time master
        /*: Using the JACK Timebase Master functionality one of the
          connected programs can broadcast both speed and measure information to
          all other connected applications in order to have a more fine-grained
          transport control.*/
        m_pJackMasterBtn = new Button( pJackPanel, QSize( 53, 16 ),
                                                                   Button::Type::Toggle, "",
                                                                   pCommonStrings->getJackMasterButton(), false,
                                                                   QSize(), pCommonStrings->getJackTBMMasterTooltip(),
                                                                   false, true );
        m_pJackMasterBtn->setObjectName( "PlayerControlJackMasterButton" );
        if ( ! m_pHydrogen->hasJackAudioDriver() ) {
                m_pJackMasterBtn->hide();
        }
                        
        if ( pPref->m_bJackTimebaseEnabled ) {
                if ( m_pHydrogen->hasJackTransport() ) {
                        if ( m_pHydrogen->getJackTimebaseState() ==
                                 JackAudioDriver::Timebase::Master ) {
                                m_pJackMasterBtn->setChecked( true );
                        }
                        else if ( m_pHydrogen->getJackTimebaseState() ==
                                          JackAudioDriver::Timebase::Slave ) {
                                m_pJackMasterBtn->setChecked( true );
                                m_pJackMasterBtn->setUseRedBackground( true );
                                m_pJackMasterBtn->setToolTip( pCommonStrings->getJackTBMSlaveTooltip() );
                        }
                        else {
                                m_pJackMasterBtn->setChecked( false );
                        }
                }
                else {
                        m_pJackMasterBtn->setIsActive( false );
                }
        }
        else {
                m_pJackMasterBtn->setIsActive( false );
                m_pJackMasterBtn->setBaseToolTip( pCommonStrings->getJackMasterDisabledTooltip() );
        }
 
        connect(m_pJackMasterBtn, SIGNAL( clicked() ), this, SLOT( jackMasterBtnClicked() ));
        m_pJackMasterBtn->move( 56, 24 );
        // ~ jack time master
 
        // CPU load widget
        m_pCpuLoadWidget = new CpuLoadWidget( pJackPanel );
        m_pCpuLoadWidget->setObjectName( "CpuLoadWidget" );
 
        // Midi Activity widget
        m_pMidiActivityLED = new LED( pJackPanel, QSize( 11, 9 ) );
        m_pMidiActivityLED->setObjectName( "MidiActivityLED" );
        m_pMidiActivityTimer = new QTimer( this );
        connect( m_pMidiActivityTimer, SIGNAL( timeout() ),
                         this, SLOT( deactivateMidiActivityLED() ) );
        m_pMidiInLbl = new ClickableLabel( pJackPanel, QSize( 45, 9 ),
                                                                           pCommonStrings->getMidiInLabel() );
        m_pMidiInLbl->move( 22, 14 );
        m_pCpuLbl = new ClickableLabel( pJackPanel, QSize( 30, 9 ),
                                                                        pCommonStrings->getCpuLabel() );
        m_pCpuLbl->move( 71, 14 );
 
        m_pMidiActivityLED->move( 11, 14 );
        m_pCpuLoadWidget->move( 10, 3 );
// ~ JACK
 
 
        QWidget *pLcdBackGround = new QWidget( nullptr );
        pLcdBackGround->setFixedSize( 256, 43 );
        pLcdBackGround->setObjectName( "LcdBackground" );
        hbox->addWidget( pLcdBackGround );
 
        m_pShowMixerBtn = new Button( pLcdBackGround, QSize( 88, 23 ), Button::Type::Toggle,
                                                                  "", pCommonStrings->getMixerButton(), false, QSize(),
                                                                  tr( "Show mixer" ) );
        m_pShowMixerBtn->move( 0, 0 );
        connect(m_pShowMixerBtn, SIGNAL( clicked() ), this, SLOT( showMixerButtonClicked() ));
 
        m_pShowInstrumentRackBtn = new Button( pLcdBackGround, QSize( 168, 23 ), Button::Type::Toggle,
                                                                                   "", pCommonStrings->getInstrumentRackButton(), false, QSize(),
                                                                                   tr( "Show Instrument Rack" ) );
        m_pShowInstrumentRackBtn->move( 88, 0 );
        connect( m_pShowInstrumentRackBtn, SIGNAL( clicked() ),
                         this, SLOT( showInstrumentRackButtonClicked() ) );
 
        m_pStatusLabel = new StatusMessageDisplay( pLcdBackGround, QSize( 255, 18 ) );
        m_pStatusLabel->move( 0, 24 );
 
        hbox->addStretch( 1000 );       // this must be the last widget in the HBOX!!
 
        QTimer *timer = new QTimer( this );
        connect(timer, SIGNAL(timeout()), this, SLOT(updatePlayerControl()));
        timer->start(100);      // update player control at 10 fps
        
        connect( HydrogenApp::get_instance(), &HydrogenApp::preferencesChanged,
                         this, &PlayerControl::onPreferencesChanged );
}
 
 
 
 
PlayerControl::~PlayerControl() {
}
 
 
 
 
 
void PlayerControl::updatePlayerControl()
{
        Preferences *pPref = Preferences::get_instance();
        HydrogenApp *pH2App = HydrogenApp::get_instance();
 
        if ( ! m_pShowMixerBtn->isDown() ) {
                m_pShowMixerBtn->setChecked( pH2App->getMixer()->isVisible() );
        }
        if ( ! m_pShowInstrumentRackBtn->isDown() ) {
                m_pShowInstrumentRackBtn->setChecked( pH2App->getInstrumentRack()->isVisible() );
        }
 
        auto state = m_pHydrogen->getAudioEngine()->getState();
        if ( ! m_pPlayBtn->isDown() && ! m_pStopBtn->isDown() &&
                 ! m_pFfwdBtn->isDown() && ! m_pRwdBtn->isDown() ) {
                if ( state == H2Core::AudioEngine::State::Playing ) {
                        m_pPlayBtn->setChecked(true);
                } else {
                        m_pPlayBtn->setChecked(false);
                }
        }
 
        if ( ! m_pRecBtn->isDown() ) {
                if (pPref->getRecordEvents()) {
                        m_pRecBtn->setChecked(true);
                } else {
                        m_pRecBtn->setChecked(false);
                }
        }
 
        std::shared_ptr<Song> song = m_pHydrogen->getSong();
 
        if ( ! m_pLCDBPMSpinbox->hasFocus() &&
                 ! m_pLCDBPMSpinbox->getIsHovered() ) {
                m_bLCDBPMSpinboxIsArmed = false;
                m_pLCDBPMSpinbox->setValue( m_pHydrogen->getAudioEngine()->getTransportPosition()->getBpm() );
                m_bLCDBPMSpinboxIsArmed = true;
        }
 
        //beatcounter
        if ( pPref->m_bbc == Preferences::BC_OFF ) {
                m_pControlsBCPanel->hide();
                if ( ! m_pBCOnOffBtn->isDown() ) {
                        m_pBCOnOffBtn->setChecked(false);
                }
        } else {
                m_pControlsBCPanel->show();
                if ( ! m_pBCOnOffBtn->isDown() ) {
                        m_pBCOnOffBtn->setChecked(true);
                }
        }
 
        if ( ! m_pBCSetPlayBtn->isDown() ) {
                if ( pPref->m_mmcsetplay ==  Preferences::SET_PLAY_OFF) {
                        m_pBCSetPlayBtn->setChecked(false);
                } else {
                        m_pBCSetPlayBtn->setChecked(true);
                }
        }
        // ~ beatcounter
 
        // time
        float fSeconds = m_pHydrogen->getAudioEngine()->getElapsedTime();
        
        int nMSec = (int)( (fSeconds - (int)fSeconds) * 1000.0 );
        int nSeconds = ( (int)fSeconds ) % 60;
        int nMins = (int)( fSeconds / 60.0 ) % 60;
        int nHours = (int)( fSeconds / 3600.0 );
 
        QString sTime = QString( "%1:%2:%3.%4" )
                .arg( nHours, 2, 10, QLatin1Char( '0' ) )
                .arg( nMins, 2, 10, QLatin1Char( '0' ) )
                .arg( nSeconds, 2, 10, QLatin1Char( '0' ) )
                .arg( nMSec, 3, 10, QLatin1Char( '0' ) );
 
        if ( m_pTimeDisplay->text() != sTime ) {
                m_pTimeDisplay->setText( sTime );
        }
 
        if ( ! m_pMetronomeBtn->isDown() ) {
                m_pMetronomeBtn->setChecked(pPref->m_bUseMetronome);
        }
 
 
        //beatcounter get BC message
        char bcstatus[4];
        int beatstocountondisplay = 1;
        beatstocountondisplay = m_pHydrogen->getBcStatus();
 
        switch (beatstocountondisplay){
                case 1 :
                        if (bcDisplaystatus == 1){
                                Preferences::get_instance()->m_bbc = Preferences::BC_OFF;
                                bcDisplaystatus = 0;
                        }
                        sprintf(bcstatus, "R");
                        if ( m_pBCDisplayZ->text() != bcstatus ) {
                                m_pBCDisplayZ->setText( QString (bcstatus) );
                        }
 
                        break;
                default:
                        if (Preferences::get_instance()->m_bbc == Preferences::BC_OFF){
                                Preferences::get_instance()->m_bbc = Preferences::BC_ON;
                                bcDisplaystatus = 1;
                        }
                        sprintf(bcstatus, "%02d ", beatstocountondisplay -1);
                        if ( m_pBCDisplayZ->text() != bcstatus ) {
                                m_pBCDisplayZ->setText( QString (bcstatus) );
                        }
 
        }
        
        // Rubberband
        if ( m_pRubberBPMChange->isChecked() != pPref->getRubberBandBatchMode() ) {
                m_pRubberBPMChange->setChecked( pPref->getRubberBandBatchMode());
        }
}
 
 

void PlayerControl::recBtnClicked() {
        if ( m_pHydrogen->getAudioEngine()->getState() != H2Core::AudioEngine::State::Playing ) {
                if ( m_pRecBtn->isChecked() ) {
                        Preferences::get_instance()->setRecordEvents(true);
                        (HydrogenApp::get_instance())->showStatusBarMessage( tr("Record midi events = On" ) );
                }
                else {
                        Preferences::get_instance()->setRecordEvents(false);
                        (HydrogenApp::get_instance())->showStatusBarMessage( tr("Record midi events = Off" ) );
                }
        }
}

void PlayerControl::playBtnClicked() {
        auto pCommonStrings = HydrogenApp::get_instance()->getCommonStrings();
 
        // Hint that something is wrong in case there is no proper audio
        // driver set.
        if ( m_pHydrogen->getAudioOutput() == nullptr ||
                 dynamic_cast<NullDriver*>(m_pHydrogen->getAudioOutput()) != nullptr ) {
                QMessageBox::warning( this, "Hydrogen",
                                                           QString( "%1\n%2" )
                                                          .arg( pCommonStrings->getAudioDriverNotPresent() )
                                                          .arg( pCommonStrings->getAudioDriverErrorHint() ) );
                return;
        }
        
        if ( m_pPlayBtn->isChecked() ) {
                m_pHydrogen->sequencer_play();
                (HydrogenApp::get_instance())->showStatusBarMessage( tr("Playing.") );
        }
        else {
                m_pHydrogen->sequencer_stop();
                (HydrogenApp::get_instance())->showStatusBarMessage( tr("Pause.") );
        }
}

void PlayerControl::stopBtnClicked()
{
        auto pCommonStrings = HydrogenApp::get_instance()->getCommonStrings();
 
        // Hint that something is wrong in case there is no proper audio
        // driver set.
        if ( m_pHydrogen->getAudioOutput() == nullptr ||
                 dynamic_cast<NullDriver*>(m_pHydrogen->getAudioOutput()) != nullptr ) {
                QMessageBox::warning( this, "Hydrogen",
                                                           QString( "%1\n%2" )
                                                          .arg( pCommonStrings->getAudioDriverNotPresent() )
                                                          .arg( pCommonStrings->getAudioDriverErrorHint() ) );
                return;
        }
        
        if ( ! m_pPlayBtn->isDown() ) {
                m_pPlayBtn->setChecked(false);
        }
        m_pHydrogen->sequencer_stop();
        m_pHydrogen->getCoreActionController()->locateToColumn( 0 );
        (HydrogenApp::get_instance())->showStatusBarMessage( tr("Stopped.") );
}
 
void PlayerControl::midiActivityEvent() {
        m_pMidiActivityTimer->stop();
        m_pMidiActivityLED->setActivated( true );
        m_pMidiActivityTimer->start( std::chrono::duration_cast<std::chrono::milliseconds>( m_midiActivityTimeout )
                                                                 .count() );
}
 
void PlayerControl::deactivateMidiActivityLED() {
        m_pMidiActivityTimer->stop();
        m_pMidiActivityLED->setActivated( false );
}
 
void PlayerControl::updateSongEvent( int nValue ) {
        // A new song got loaded
        if ( nValue == 0 ) {
                songModeActivationEvent();
                loopModeActivationEvent();
                timelineActivationEvent();
                jackTransportActivationEvent();
                jackTimebaseStateChangedEvent();
                updatePlayerControl();
        }
}
 
void PlayerControl::songModeActivationEvent()
{
        auto pHydrogen = Hydrogen::get_instance();
        auto pHydrogenApp = HydrogenApp::get_instance();
        
        if ( pHydrogen->getMode() == Song::Mode::Song ) {
                // Song mode
                m_pPatternModeLED->setActivated( false );
                m_pSongModeLED->setActivated( true );
                m_pSongModeBtn->setChecked( true );
                m_pPatternModeBtn->setChecked( false );
 
                m_pSongLoopBtn->setIsActive( true );
                
                pHydrogenApp->showStatusBarMessage( tr("Song mode selected.") );
        } else {
                // Pattern mode
                m_pPatternModeLED->setActivated( true );
                m_pSongModeLED->setActivated( false );
                m_pSongModeBtn->setChecked( false );
                m_pPatternModeBtn->setChecked( true );
 
                m_pSongLoopBtn->setIsActive( false );
                
                pHydrogenApp->showStatusBarMessage( tr("Pattern mode selected.") );
        }
 
        updateBPMSpinbox();
        updateBeatCounter();
}
 
void PlayerControl::activateSongMode( bool bActivate ) {
        auto pCoreActionController = Hydrogen::get_instance()->getCoreActionController();
        if ( bActivate ) {
                pCoreActionController->activateSongMode( true );
                m_pSongModeBtn->setChecked( true );
                m_pPatternModeBtn->setChecked( false );
        }
        else {
                pCoreActionController->activateSongMode( false );
                m_pSongModeBtn->setChecked( false );
                m_pPatternModeBtn->setChecked( true );
        }
}
 
void PlayerControl::bpmChanged( double fNewBpmValue ) {
        auto pAudioEngine = m_pHydrogen->getAudioEngine();
        if ( m_pLCDBPMSpinbox->getIsActive() &&
                 m_bLCDBPMSpinboxIsArmed ) {
                // Store it's value in the .h2song file.
                m_pHydrogen->getSong()->setBpm( static_cast<float>( fNewBpmValue ) );
                // Use tempo in the next process cycle of the audio engine.
                pAudioEngine->lock( RIGHT_HERE );
                pAudioEngine->setNextBpm( static_cast<float>( fNewBpmValue ) );
                pAudioEngine->unlock();
        }
}
 
 
 
//beatcounter
void PlayerControl::activateBeatCounter( bool bActivate )
{
        Preferences *pPref = Preferences::get_instance();
        if ( bActivate ) {
                pPref->m_bbc = Preferences::BC_ON;
                (HydrogenApp::get_instance())->showStatusBarMessage( tr(" BC Panel on") );
                m_pControlsBCPanel->show();
                m_pBCOnOffBtn->setChecked( true );
        }
        else {
                pPref->m_bbc = Preferences::BC_OFF;
                (HydrogenApp::get_instance())->showStatusBarMessage( tr(" BC Panel off") );
                m_pControlsBCPanel->hide();
                m_pBCOnOffBtn->setChecked( false );
        }
}
 
void PlayerControl::bcSetPlayBtnClicked()
{
        Preferences *pPref = Preferences::get_instance();
        if ( m_pBCSetPlayBtn->text() == HydrogenApp::get_instance()->getCommonStrings()->getBeatCounterSetPlayButtonOff() ) {
                pPref->m_mmcsetplay = Preferences::SET_PLAY_ON;
                m_pBCSetPlayBtn->setText( HydrogenApp::get_instance()->getCommonStrings()->getBeatCounterSetPlayButtonOn() );
                (HydrogenApp::get_instance())->showStatusBarMessage( tr(" Count BPM and start PLAY") );
        }
        else {
                pPref->m_mmcsetplay = Preferences::SET_PLAY_OFF;
                m_pBCSetPlayBtn->setText( HydrogenApp::get_instance()->getCommonStrings()->getBeatCounterSetPlayButtonOff() );
                (HydrogenApp::get_instance())->showStatusBarMessage( tr(" Count and set BPM") );
        }
}
 
void PlayerControl::rubberbandButtonToggle()
{
        Preferences *pPref = Preferences::get_instance();
        auto pHydrogen = H2Core::Hydrogen::get_instance();
        if ( m_pRubberBPMChange->isChecked() ) {
                // Recalculate all samples ones just to be safe since the
                // recalculation is just triggered if there is a tempo change
                // in the audio engine.
                pHydrogen->getAudioEngine()->lock( RIGHT_HERE );
                pHydrogen->recalculateRubberband( pHydrogen->getAudioEngine()->getTransportPosition()->getBpm() );
                pHydrogen->getAudioEngine()->unlock();
                pPref->setRubberBandBatchMode(true);
                (HydrogenApp::get_instance())->showStatusBarMessage( tr("Recalculate all samples using Rubberband ON") );
        }
        else {
                pPref->setRubberBandBatchMode(false);
                (HydrogenApp::get_instance())->showStatusBarMessage( tr("Recalculate all samples using Rubberband OFF") );
        }
}
 
 
void PlayerControl::bcbUpButtonClicked()
{
        int tmp = m_pHydrogen->getbeatsToCount();
        char tmpb[3];
 
        tmp ++;
        if (tmp > 16) {
                tmp = 2;
        }
        
        sprintf(tmpb, "%02d", tmp );
        m_pBCDisplayB->setText( QString( tmpb ) );
        m_pHydrogen->setbeatsToCount( tmp );
}
 
void PlayerControl::bcbDownButtonClicked()
{
        int tmp = m_pHydrogen->getbeatsToCount();
        char tmpb[3];
        tmp --;
        if (tmp < 2 ) {
                tmp = 16;
        }
        sprintf(tmpb, "%02d", tmp );
        m_pBCDisplayB->setText( QString( tmpb ) );
        m_pHydrogen->setbeatsToCount( tmp );
}
 
void PlayerControl::bctUpButtonClicked()
{
        float tmp = m_pHydrogen->getNoteLength() * 4;
 
        tmp = tmp / 2 ;
        if (tmp < 1) {
                tmp = 8;
        }
 
        m_pBCDisplayT->setText( QString::number( tmp ) );
        m_pHydrogen->setNoteLength( (tmp) / 4 );
}
 
void PlayerControl::bctDownButtonClicked()
{
        float tmp = m_pHydrogen->getNoteLength() * 4;
 
        tmp = tmp * 2;
        if (tmp > 8 ) {
                tmp = 1;
        }
        m_pBCDisplayT->setText( QString::number(tmp) );
        m_pHydrogen->setNoteLength( (tmp) / 4 );
}
// ~ beatcounter
 
 
 
void PlayerControl::jackTransportBtnClicked()
{
        if ( !m_pHydrogen->hasJackAudioDriver() ) {
                QMessageBox::warning( this, "Hydrogen", tr( "JACK-transport will work only with JACK driver." ) );
                return;
        }
 
        auto pPref = Preferences::get_instance();
        auto pCoreActionController = Hydrogen::get_instance()->getCoreActionController();
        
        if ( pPref->m_bJackTransportMode == Preferences::USE_JACK_TRANSPORT ) {
                pCoreActionController->activateJackTransport( false );
        }
        else {
                pCoreActionController->activateJackTransport( true );
        }
}
 
 
//jack time master
void PlayerControl::jackMasterBtnClicked()
{
#ifdef H2CORE_HAVE_JACK
        if ( !m_pHydrogen->hasJackTransport() ) {
                QMessageBox::warning( this, "Hydrogen", tr( "JACK transport will work only with JACK driver." ) );
                return;
        }
 
        auto pPref = Preferences::get_instance();
        auto pCoreActionController = Hydrogen::get_instance()->getCoreActionController();
        
        if ( pPref->m_bJackMasterMode == Preferences::USE_JACK_TIME_MASTER ) {
                pCoreActionController->activateJackTimebaseMaster( false );
        }
        else {
                pCoreActionController->activateJackTimebaseMaster( true );
        }
#endif
}
// ~ jack time master
 
void PlayerControl::fastForwardBtnClicked()
{
        auto pHydrogen = Hydrogen::get_instance();
        pHydrogen->getCoreActionController()->locateToColumn( pHydrogen->getAudioEngine()->getTransportPosition()->getColumn() + 1 );
}
 
 
 
void PlayerControl::rewindBtnClicked()
{
        auto pHydrogen = Hydrogen::get_instance();
        pHydrogen->getCoreActionController()->locateToColumn( pHydrogen->getAudioEngine()->getTransportPosition()->getColumn() - 1 );
}
 
void PlayerControl::loopModeActivationEvent() {
 
        auto pSong = Hydrogen::get_instance()->getSong();
        if ( pSong == nullptr ) {
                return;
        }
 
        if ( pSong->getLoopMode() == Song::LoopMode::Enabled ) {
 
                m_pSongLoopBtn->setChecked( true );
                HydrogenApp::get_instance()->showStatusBarMessage( tr("Loop song = On") );
        }
        else {
                m_pSongLoopBtn->setChecked( false );
                HydrogenApp::get_instance()->showStatusBarMessage( tr("Loop song = Off") );
        }
}
 
void PlayerControl::metronomeButtonClicked()
{
        Hydrogen*       pHydrogen = Hydrogen::get_instance();
        CoreActionController* pController = pHydrogen->getCoreActionController();
        
        pController->setMetronomeIsActive( m_pMetronomeBtn->isChecked() );
}
 
void PlayerControl::showMixerButtonClicked()
{
        HydrogenApp *pH2App = HydrogenApp::get_instance();
        bool isVisible = pH2App->getMixer()->isVisible();
        pH2App->showMixer( !isVisible );
}
 
void PlayerControl::showInstrumentRackButtonClicked()
{
        HydrogenApp *pH2App = HydrogenApp::get_instance();
        bool isVisible = pH2App->getInstrumentRack()->isVisible();
        pH2App->showInstrumentPanel( isVisible );
}
 
 
void PlayerControl::timelineActivationEvent() {
        updateBPMSpinbox();
        updateBeatCounter();
}
 
void PlayerControl::updateBPMSpinbox() {
        auto pHydrogen = Hydrogen::get_instance();
 
        m_pLCDBPMSpinbox->setIsActive( pHydrogen->getTempoSource() ==
                                                                   H2Core::Hydrogen::Tempo::Song );
        updateBPMSpinboxToolTip();
}
 
void PlayerControl::showStatusBarMessage( const QString& sMessage, const QString& sCaller ) {
        m_pStatusLabel->showMessage( sMessage, sCaller );
}
 
void PlayerControl::updateBPMSpinboxToolTip() {
        auto pHydrogen = Hydrogen::get_instance();
        switch ( pHydrogen->getTempoSource() ) {
        case H2Core::Hydrogen::Tempo::Jack:
                m_pLCDBPMSpinbox->setToolTip( m_sLCDBPMSpinboxJackTimebaseToolTip );
                break;
        case H2Core::Hydrogen::Tempo::Timeline:
                m_pLCDBPMSpinbox->setToolTip( m_sLCDBPMSpinboxTimelineToolTip );
                break;
        default:
                m_pLCDBPMSpinbox->setToolTip( m_sLCDBPMSpinboxToolTip );
        }
}
 
void PlayerControl::updateBeatCounter() {
        auto pPref = Preferences::get_instance();
        auto pHydrogen = Hydrogen::get_instance();
 
        if ( pHydrogen->getTempoSource() == H2Core::Hydrogen::Tempo::Song &&
                 ! m_pBCOnOffBtn->getIsActive() ) {
                m_pBCOnOffBtn->setIsActive( true );
                if ( m_bLastBCOnOffBtnState ) {
                        m_pBCOnOffBtn->setChecked( true );
                        pPref->m_bbc = Preferences::BC_ON;
                        m_pControlsBCPanel->show();
                }
                
        } else if ( pHydrogen->getTempoSource() !=
                                H2Core::Hydrogen::Tempo::Song &&
                                m_pBCOnOffBtn->getIsActive() ) {
                pPref->m_bbc = Preferences::BC_OFF;
                m_pControlsBCPanel->hide();
                m_bLastBCOnOffBtnState = m_pBCOnOffBtn->isChecked();
                m_pBCOnOffBtn->setChecked( false );
                m_pBCOnOffBtn->setIsActive( false );
        }
 
        updateBeatCounterToolTip();
}
 
void PlayerControl::updateBeatCounterToolTip() {
        auto pHydrogen = Hydrogen::get_instance();
        switch ( pHydrogen->getTempoSource() ) {
        case H2Core::Hydrogen::Tempo::Jack:
                m_pBCOnOffBtn->setToolTip( m_sBCOnOffBtnJackTimebaseToolTip );
                break;
        case H2Core::Hydrogen::Tempo::Timeline:
                m_pBCOnOffBtn->setToolTip( m_sBCOnOffBtnTimelineToolTip );
                break;
        default:
                m_pBCOnOffBtn->setToolTip( m_sBCOnOffBtnToolTip );
        }
}
 
void PlayerControl::tempoChangedEvent( int nValue )
{
        // When updating the tempo of the BPM spin box it is crucial to
        // indicated that this was done due to a batch event and not due
        // to user input.
        m_bLCDBPMSpinboxIsArmed = false;
 
        // Also update value if the BPM widget is disabled
        bool bIsReadOnly = m_pLCDBPMSpinbox->isReadOnly();
 
        if ( ! bIsReadOnly ) {
                m_pLCDBPMSpinbox->setReadOnly( true );
        }
        /*
         * This is an external tempo change, triggered
         * via a midi or osc message.
         *
         * Just update the GUI using the current tempo
         * of the song.
         */
        m_pLCDBPMSpinbox->setValue( m_pHydrogen->getAudioEngine()->getTransportPosition()->getBpm() );
 
        if ( ! bIsReadOnly ) {
                m_pLCDBPMSpinbox->setReadOnly( false );
        }
 
        // Re-enabling core Bpm alteration using BPM spinbox
        m_bLCDBPMSpinboxIsArmed = true;
 
        if ( nValue == -1 ) {
                // Value was changed via API commands and not by the
                // AudioEngine.
                auto pHydrogen = H2Core::Hydrogen::get_instance();
                if ( pHydrogen->getTempoSource() == H2Core::Hydrogen::Tempo::Timeline ) {
                        QMessageBox::warning( this, "Hydrogen", tr("A tempo change via MIDI, OSC, BeatCounter, or TapTempo was detected. It will only be used after deactivating the Timeline and left of the first Tempo Marker when activating it again.") );
                } else if ( pHydrogen->getTempoSource() ==
                                        H2Core::Hydrogen::Tempo::Jack ) {
                        QMessageBox::warning( this, "Hydrogen", tr("A tempo change via MIDI, OSC, BeatCounter, or TapTempo was detected. It will only take effect when deactivating JACK BBT transport or making Hydrogen the Timebase master.") );
                }
        }
}
 
void PlayerControl::driverChangedEvent() {
        if ( m_pHydrogen->hasJackAudioDriver() ) {
                m_pJackTransportBtn->show();
                m_pJackMasterBtn->show();
 
                jackTimebaseStateChangedEvent();
                jackTransportActivationEvent();
        }
        else {
                m_pJackTransportBtn->hide();
                m_pJackMasterBtn->hide();
        }
}
 
void PlayerControl::jackTransportActivationEvent( )
{
        auto pPref = Preferences::get_instance();
        
        if ( pPref->m_bJackTransportMode == Preferences::USE_JACK_TRANSPORT ) {
                
                if ( ! m_pJackTransportBtn->isDown() ) {
                        m_pJackTransportBtn->setChecked( true );
                }
 
                HydrogenApp::get_instance()->showStatusBarMessage( tr("JACK transport mode = On") );
 
                if ( pPref->m_bJackTimebaseEnabled ) {
                        m_pJackMasterBtn->setIsActive( true );
                        jackTimebaseStateChangedEvent();
                }
        }
        else {
                
                if ( ! m_pJackTransportBtn->isDown() ) {
                        m_pJackTransportBtn->setChecked( false );
                }
                m_pJackMasterBtn->setChecked( false );
                m_pJackMasterBtn->setIsActive( false );
                HydrogenApp::get_instance()->showStatusBarMessage( tr("JACK transport mode = Off") );
        }
}
 
void PlayerControl::jackTimebaseStateChangedEvent()
{
        auto pPref = Preferences::get_instance();
        if ( ! pPref->m_bJackTimebaseEnabled ) {
                return;
        }
        
        auto pCommonStrings = HydrogenApp::get_instance()->getCommonStrings();
        auto pHydrogen = Hydrogen::get_instance();
 
        QString sMessage = tr("JACK Timebase mode" ) + QString( " = " );
        
        switch( pHydrogen->getJackTimebaseState() ) {
        case JackAudioDriver::Timebase::Master:
 
                if ( ! m_pJackMasterBtn->isDown() ) {
                        m_pJackMasterBtn->setChecked( true );
                }
                m_pJackMasterBtn->setUseRedBackground( false );
                m_pJackMasterBtn->setToolTip( pCommonStrings->getJackTBMMasterTooltip() );
                
                sMessage.append( "master" );
                break;
 
        case JackAudioDriver::Timebase::Slave:
 
                if ( ! m_pJackMasterBtn->isDown() ) {
                        m_pJackMasterBtn->setChecked( true );
                }
                m_pJackMasterBtn->setUseRedBackground( true );
                m_pJackMasterBtn->setToolTip( pCommonStrings->getJackTBMSlaveTooltip() );
                
                sMessage.append( "slave" );
                break;
 
        default:
 
                if ( ! m_pJackMasterBtn->isDown() ) {
                        m_pJackMasterBtn->setChecked( false );
                }               
                m_pJackMasterBtn->setUseRedBackground( false );
                m_pJackMasterBtn->setToolTip( pCommonStrings->getJackTBMMasterTooltip() );
 
                sMessage.append( pCommonStrings->getStatusOff() );
        }
 
        updateBeatCounter();
        updateBPMSpinbox();
        HydrogenApp::get_instance()->showStatusBarMessage( sMessage );
}
 
void PlayerControl::onPreferencesChanged( H2Core::Preferences::Changes changes )
{
        if ( changes & H2Core::Preferences::Changes::AudioTab ) {
                auto pPref = Preferences::get_instance();
                auto pCommonStrings = HydrogenApp::get_instance()->getCommonStrings();
 
                if ( pPref->m_bJackTimebaseEnabled ) {
                        if ( Hydrogen::get_instance()->hasJackTransport() ) {
                                m_pJackMasterBtn->setIsActive( true );
                                jackTimebaseStateChangedEvent();
                        }
                        else {
                                m_pJackMasterBtn->setToolTip( pCommonStrings->getJackTBMMasterTooltip() );
                        }
                }
                else {
                        m_pJackMasterBtn->setChecked( false );
                        m_pJackMasterBtn->setIsActive( false );
                        m_pJackMasterBtn->setBaseToolTip( pCommonStrings->getJackMasterDisabledTooltip() );
                }
        }
}