Sample track activity indicator

include/FadeButton.h

@@ -46,6 +46,7 @@ class FadeButton : public QAbstractButton
 
 public slots:
 	void activate();
+	void activateOnce();
 	void noteEnd();
 
 

include/InstrumentTrack.h

@@ -333,7 +333,6 @@ private slots:
 	void midiInSelected();
 	void midiOutSelected();
 	void midiConfigChanged();
-	void muteChanged();
 
 	void assignFxLine( int channelIndex );
 	void createFxLine();
@@ -357,6 +356,10 @@ private slots:
 
 	QPoint m_lastPos;
 
+	FadeButton * getActivityIndicator()
+	{
+		return m_activityIndicator;
+	}
 
 	friend class InstrumentTrackWindow;
 

include/SampleTrack.h

@@ -29,6 +29,7 @@
 #include <QLayout>
 
 #include "AudioPort.h"
+#include "FadeButton.h"
 #include "FxMixer.h"
 #include "FxLineLcdSpinBox.h"
 #include "Track.h"
@@ -161,6 +162,20 @@ class SampleTrack : public Track
 		return "sampletrack";
 	}
 
+	bool isPlaying()
+	{
+		return m_isPlaying;
+	}
+
+	void setPlaying(bool playing)
+	{
+		if (m_isPlaying != playing) { emit playingChanged(); }
+		m_isPlaying = playing;
+	}
+
+signals:
+	void playingChanged();
+
 public slots:
 	void updateTcos();
 	void setPlayingTcos( bool isPlaying );
@@ -171,6 +186,7 @@ public slots:
 	FloatModel m_panningModel;
 	IntModel m_effectChannelModel;
 	AudioPort m_audioPort;
+	bool m_isPlaying;
 
 
 
@@ -209,6 +225,7 @@ class SampleTrackView : public TrackView
 
 public slots:
 	void showEffects();
+	void updateIndicator();
 
 
 protected:
@@ -230,9 +247,14 @@ private slots:
 	SampleTrackWindow * m_window;
 	Knob * m_volumeKnob;
 	Knob * m_panningKnob;
+	FadeButton * m_activityIndicator;
 
 	TrackLabelButton * m_tlb;
 
+	FadeButton * getActivityIndicator()
+	{
+		return m_activityIndicator;
+	}
 
 	friend class SampleTrackWindow;
 

include/Track.h

@@ -39,6 +39,7 @@
 #include "AutomatableModel.h"
 #include "ModelView.h"
 #include "DataFile.h"
+#include "FadeButton.h"
 
 
 class QMenu;
@@ -739,12 +740,17 @@ public slots:
 
 	Actions m_action;
 
+	virtual FadeButton * getActivityIndicator()
+	{
+		return nullptr;
+	}
 
 	friend class TrackLabelButton;
 
 
 private slots:
 	void createTCOView( TrackContentObject * tco );
+	void muteChanged ();
 
 } ;
 

src/core/Track.cpp

@@ -2719,6 +2719,9 @@ TrackView::TrackView( Track * track, TrackContainerView * tcv ) :
 	connect( &m_track->m_mutedModel, SIGNAL( dataChanged() ),
 			&m_trackContentWidget, SLOT( update() ) );
 
+	connect(&m_track->m_mutedModel, SIGNAL(dataChanged()),
+			this, SLOT(muteChanged()));
+
 	connect( &m_track->m_soloModel, SIGNAL( dataChanged() ),
 			m_track, SLOT( toggleSolo() ), Qt::DirectConnection );
 	// create views for already existing TCOs
@@ -3051,3 +3054,25 @@ void TrackView::createTCOView( TrackContentObject * tco )
 	}
 	tco->selectViewOnCreate( false );
 }
+
+
+
+
+void TrackView::muteChanged()
+{
+	FadeButton * actind = getActivityIndicator();
+	if (actind)
+	{
+		if (m_track->m_mutedModel.value())
+		{
+			actind->setActiveColor(QApplication::palette().color(
+							QPalette::Active,
+							QPalette::Highlight));
+		} else
+		{
+			actind->setActiveColor(QApplication::palette().color(
+							QPalette::Active,
+							QPalette::BrightText));
+		}
+	}
+}

src/gui/widgets/FadeButton.cpp

@@ -2,7 +2,7 @@
  * FadeButton.cpp - implementation of fade-button
  *
  * Copyright (c) 2005-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
- * 
+ *
  * This file is part of LMMS - https://lmms.io
  *
  * This program is free software; you can redistribute it and/or
@@ -21,7 +21,7 @@
  * Boston, MA 02110-1301 USA.
  *
  */
- 
+
 
 #include <QTimer>
 #include <QPainter>
@@ -75,6 +75,14 @@ void FadeButton::activate()
 
 
 
+void FadeButton::activateOnce()
+{
+	if (activeNotes == 0) { activate(); }
+}
+
+
+
+
 void FadeButton::noteEnd()
 {
 	if (activeNotes <= 0)
@@ -97,6 +105,7 @@ void FadeButton::noteEnd()
 
 
 
+
 void FadeButton::paintEvent(QPaintEvent * _pe)
 {
 	QColor col = m_normalColor;
@@ -145,7 +154,7 @@ QColor FadeButton::fadeToColor(QColor startCol, QColor endCol, QTime timer, floa
 	QColor col;
 
 	const float state = 1 - timer.elapsed() / duration;
-	const int r = (int)(endCol.red() * (1.0f - state) 
+	const int r = (int)(endCol.red() * (1.0f - state)
 		+ startCol.red() * state);
 	const int g = (int)(endCol.green() * (1.0f - state)
 		+ startCol.green() * state);

src/tracks/InstrumentTrack.cpp

@@ -996,7 +996,6 @@ InstrumentTrackView::InstrumentTrackView( InstrumentTrack * _it, TrackContainerV
 			 m_activityIndicator, SLOT( activate() ) );
 	connect( _it, SIGNAL( endNote() ),
 	 		m_activityIndicator, SLOT( noteEnd() ) );
-	connect( &_it->m_mutedModel, SIGNAL( dataChanged() ), this, SLOT( muteChanged() ) );
 
 	setModel( _it );
 }
@@ -1225,22 +1224,6 @@ void InstrumentTrackView::midiConfigChanged()
 
 
 
-void InstrumentTrackView::muteChanged()
-{
-	if(model()->m_mutedModel.value() )
-	{
-		m_activityIndicator->setActiveColor( QApplication::palette().color( QPalette::Active,
-															 QPalette::Highlight ) );
-	} else
-	{
-		m_activityIndicator->setActiveColor( QApplication::palette().color( QPalette::Active,
-															 QPalette::BrightText ) );
-	}
-}
-
-
-
-
 //FIXME: This is identical to SampleTrackView::createFxMenu
 QMenu * InstrumentTrackView::createFxMenu(QString title, QString newFxLabel)
 {

src/tracks/SampleTrack.cpp

@@ -592,7 +592,8 @@ SampleTrack::SampleTrack( TrackContainer* tc ) :
 	m_panningModel( DefaultPanning, PanningLeft, PanningRight, 0.1f,
 					this, tr( "Panning" ) ),
 	m_effectChannelModel( 0, 0, 0, this, tr( "FX channel" ) ),
-	m_audioPort( tr( "Sample track" ), true, &m_volumeModel, &m_panningModel, &m_mutedModel )
+	m_audioPort( tr( "Sample track" ), true, &m_volumeModel, &m_panningModel, &m_mutedModel ),
+	m_isPlaying(false)
 {
 	setName( tr( "Sample track" ) );
 	m_panningModel.setCenterValue( DefaultPanning );
@@ -622,6 +623,10 @@ bool SampleTrack::play( const MidiTime & _start, const fpp_t _frames,
 	::BBTrack * bb_track = NULL;
 	if( _tco_num >= 0 )
 	{
+		if (_start > getTCO(_tco_num)->length())
+		{
+			setPlaying(false);
+		}
 		if( _start != 0 )
 		{
 			return false;
@@ -630,10 +635,12 @@ bool SampleTrack::play( const MidiTime & _start, const fpp_t _frames,
 		if (trackContainer() == (TrackContainer*)Engine::getBBTrackContainer())
 		{
 			bb_track = BBTrack::findBBTrack( _tco_num );
+			setPlaying(true);
 		}
 	}
 	else
 	{
+		bool nowPlaying = false;
 		for( int i = 0; i < numOfTCOs(); ++i )
 		{
 			TrackContentObject * tco = getTCO( i );
@@ -657,14 +664,17 @@ bool SampleTrack::play( const MidiTime & _start, const fpp_t _frames,
 						sTco->setSamplePlayLength( samplePlayLength );
 						tcos.push_back( sTco );
 						sTco->setIsPlaying( true );
+						nowPlaying = true;
 					}
 				}
 			}
 			else
 			{
 				sTco->setIsPlaying( false );
 			}
+			nowPlaying = nowPlaying || sTco->isPlaying();
 		}
+		setPlaying(nowPlaying);
 	}
 
 	for( tcoVector::Iterator it = tcos.begin(); it != tcos.end(); ++it )
@@ -826,6 +836,19 @@ SampleTrackView::SampleTrackView( SampleTrack * _t, TrackContainerView* tcv ) :
 	m_panningKnob->setLabel( tr( "PAN" ) );
 	m_panningKnob->show();
 
+	m_activityIndicator = new FadeButton(QApplication::palette().color(QPalette::Active,
+							QPalette::Background),
+						QApplication::palette().color(QPalette::Active,
+							QPalette::BrightText),
+						QApplication::palette().color(QPalette::Active,
+							QPalette::BrightText).darker(),
+						getTrackSettingsWidget());
+	m_activityIndicator->setGeometry(settingsWidgetWidth-2*24-11, 2, 8, 28);
+	m_activityIndicator->show();
+	connect(_t, SIGNAL(playingChanged()), this, SLOT(updateIndicator()));
+	connect(Engine::getSong(), SIGNAL(stopped()),
+			this, SLOT(stopPlaying()));
+
 	setModel( _t );
 
 	m_window = new SampleTrackWindow(this);
@@ -835,6 +858,15 @@ SampleTrackView::SampleTrackView( SampleTrack * _t, TrackContainerView* tcv ) :
 
 
 
+void SampleTrackView::updateIndicator()
+{
+	if (model()->isPlaying()) m_activityIndicator->activateOnce();
+	else { m_activityIndicator->noteEnd(); }
+}
+
+
+
+
 SampleTrackView::~SampleTrackView()
 {
 	if(m_window != NULL)