LogFile Class Reference

Create a data log of keypress and tuning events. More...

#include <logfile.h>

Inheritance diagram for LogFile:

Collaboration diagram for LogFile:

Public Slots
void	activateLogFile (bool on)
	Switch logging on and off. More...
void	receiveMidiEvent (QMidiMessage event)
	Public slot: Receive MIDI event. More...
void	receiveTuningCorrections (const QMap< int, double > &corrections)
	Public slot: Receive tuning corrections. More...

Signals
void	signalNewLogMessage (QVariant str)

Public Member Functions
	LogFile ()
	Constructor of the LogFile, resets member variables. More...
void	setVerbosity (int verbosity)
	Set the verbosity level of the class-specific messages. More...
int	getVerbosity ()
	Get the actual verbosity level. More...

Private Member Functions
QString	noteName (int key)
	Note Name of a key. More...
void	addLine (quint64 milliseconds, const QString &line)
	Add a line to the logfile output. More...
void	registerKeypress (int key, bool pressed)
	Public slot: Register pressed or released key. More...
void	flushKeypress ()
	Terminate collection of multiple keypresses/releases and send them to the logfile. More...

Private Attributes
QElapsedTimer	mTimer
bool	isActive
QList< int >	mPressed
QList< int >	mReleased
qint64	mTimeOfLastKeypress
QString	mTuningMessage

Detailed Description

Create a data log of keypress and tuning events.

This class produces a log of selected keypress and tuning events.

Definition at line 42 of file logfile.h.

Constructor & Destructor Documentation

LogFile::LogFile

(

)

Constructor of the LogFile, resets member variables.

Definition at line 36 of file logfile.cpp.

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Member Function Documentation

void LogFile::activateLogFile ( bool  on )

slot

Switch logging on and off.

Parameters

on	: true = on, false = off

Definition at line 57 of file logfile.cpp.

void LogFile::addLine ( quint64  milliseconds, const QString &  line  )

private

Add a line to the logfile output.

Parameters

milliseconds	: The actual time since startup in milliseconds
line	: String containing the text to be sent to the logfile

Definition at line 161 of file logfile.cpp.

void LogFile::flushKeypress ( )

private

Terminate collection of multiple keypresses/releases and send them to the logfile.

Definition at line 209 of file logfile.cpp.

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int Log::getVerbosity ( )

inherited

Get the actual verbosity level.

Returns

: Verbosity level (1...4)

Definition at line 118 of file log.cpp.

QString LogFile::noteName ( int  key )

private

Note Name of a key.

Parameters

key	: Number of the key (0..127)

Returns

String with a human-readable name of the corresponding note

Definition at line 74 of file logfile.cpp.

void LogFile::receiveMidiEvent ( QMidiMessage  event )

slot

Public slot: Receive MIDI event.

This is the first main input slot of the class. It receieves MIDI events indicating whether a key on the keyboard has been pressed or released.

Parameters

event

: A Midi message containing data about keypresses

Definition at line 92 of file logfile.cpp.

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void LogFile::receiveTuningCorrections ( const QMap< int, double > &  corrections )

slot

Public slot: Receive tuning corrections.

This slot receives the tuning corrections from the tuner and sends them to the log file output. Only the first and the last tuning correction after a keypress or release are sent to the output while all adiabatically equilibrating tuning corrections in between are suppressed in order to keep the output compact.

Parameters

corrections

: Map containing <key,cent> microtuning pairs

Definition at line 124 of file logfile.cpp.

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void LogFile::registerKeypress ( int  key, bool  pressed  )

private

Public slot: Register pressed or released key.

This function registers newly pressed and released keys. If there have been suppressed tuning messages before the last one will be sent to the output as well. Multiple keypresses at the same time (in the resolution of milliseconds) will be collected in a single line. When the collection process is finished the function flushKeypress() is called.

Parameters

key	: Number of the key
pressed	: pressed = true, released = false

Definition at line 186 of file logfile.cpp.

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void Log::setVerbosity ( int  verbosity )

inherited

Set the verbosity level of the class-specific messages.

Parameters

verbosity

: Verbosity level (1...4)

Definition at line 107 of file log.cpp.

void LogFile::signalNewLogMessage ( QVariant  str )

signal

Signal sending a new string to the Qml output text area

Member Data Documentation

bool LogFile::isActive

private

Definition at line 65 of file logfile.h.

QList<int> LogFile::mPressed

private

Definition at line 66 of file logfile.h.

QList<int> LogFile::mReleased

private

Definition at line 66 of file logfile.h.

qint64 LogFile::mTimeOfLastKeypress

private

Definition at line 67 of file logfile.h.

QElapsedTimer LogFile::mTimer

private

Definition at line 64 of file logfile.h.

QString LogFile::mTuningMessage

private

Definition at line 68 of file logfile.h.

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The documentation for this class was generated from the following files:

• logfile.h
• logfile.cpp