Changeset - e0c6c43cbcf5
[Not reviewed]
recording
0 18 0
Hasan Yavuz ÖZDERYA - 9 years ago 2017-02-14 08:21:16
hy@ozderya.net
data recording mostly integrated and working
18 files changed with 166 insertions and 40 deletions:
0 comments (0 inline, 0 general)
src/abstractreader.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include "abstractreader.h"
 

	
 
AbstractReader::AbstractReader(QIODevice* device, ChannelManager* channelMan, QObject *parent) :
 
#include <QtDebug>
 

	
 
AbstractReader::AbstractReader(QIODevice* device, ChannelManager* channelMan,
 
                               DataRecorder* recorder, QObject* parent) :
 
    QObject(parent)
 
{
 
    _device = device;
 
    _channelMan = channelMan;
 
    _recorder = recorder;
 
    recording = false;
 

	
 
    // initialize sps counter
 
    sampleCount = 0;
 
    samplesPerSecond = 0;
 
    QObject::connect(&spsTimer, &QTimer::timeout,
 
                     this, &AbstractReader::spsTimerTimeout);
 
    // TODO: start sps timer when reader is enabled
 
    spsTimer.start(SPS_UPDATE_TIMEOUT * 1000);
 
}
 

	
 
void AbstractReader::spsTimerTimeout()
 
{
 
    unsigned currentSps = samplesPerSecond;
 
    samplesPerSecond = (sampleCount/numOfChannels())/SPS_UPDATE_TIMEOUT;
 
    if (currentSps != samplesPerSecond)
 
    {
 
        emit samplesPerSecondChanged(samplesPerSecond);
 
    }
 
    sampleCount = 0;
 
}
 

	
 
void AbstractReader::addData(double* samples, unsigned length)
 
{
 
    _channelMan->addData(samples, length);
 
    if (recording)
 
    {
 
        _recorder->addData(samples, length, numOfChannels());
 
        qDebug() << "adding data";
 
    }
 
    sampleCount += length;
 
}
src/abstractreader.h
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef ABSTRACTREADER_H
 
#define ABSTRACTREADER_H
 

	
 
#include <QObject>
 
#include <QIODevice>
 
#include <QWidget>
 
#include <QTimer>
 

	
 
#include "channelmanager.h"
 
#include "datarecorder.h"
 

	
 
/**
 
 * All reader classes must inherit this class.
 
 */
 
class AbstractReader : public QObject
 
{
 
    Q_OBJECT
 
public:
 
    explicit AbstractReader(QIODevice* device, ChannelManager* channelMan, QObject *parent = 0);
 
    explicit AbstractReader(QIODevice* device, ChannelManager* channelMan,
 
                            DataRecorder* recorder, QObject* parent = 0);
 

	
 
    bool recording;                 /// is recording started
 

	
 
    /**
 
     * Returns a widget to be shown in data format panel when reader
 
     * is selected.
 
     */
 
    virtual QWidget* settingsWidget() = 0;
 

	
 
    /**
 
     * Number of channels being read.
 
     *
 
     * This number may be user selected or automatically determined
 
     * from incoming stream.
 
     */
 
    virtual unsigned numOfChannels() = 0;
 

	
 
    /// Reader should only read when enabled. Default state should be
 
    /// 'disabled'.
 
    virtual void enable(bool enabled = true) = 0;
 

	
 
    /**
 
     * @brief Starts sending data to recorder.
 
     *
 
     * @note recorder must have been started!
 
     */
 
    void startRecording();
 

	
 
    /// Stops recording.
 
    void stopRecording();
 

	
 
signals:
 
    void numOfChannelsChanged(unsigned);
 
    void samplesPerSecondChanged(unsigned);
 

	
 
public slots:
 
    /**
 
     * Pauses the reading.
 
     *
 
     * Reader should actually continue reading to keep the
 
     * synchronization but shouldn't commit data.
 
     */
 
    virtual void pause(bool) = 0;
 

	
 
protected:
 
    QIODevice* _device;
 

	
 
    /// Should be called with read data
 
    void addData(double* samples, unsigned length);
 

	
 
private:
 
    const int SPS_UPDATE_TIMEOUT = 1;  // second
 
    ChannelManager* _channelMan;
 

	
 
    unsigned sampleCount;
 
    unsigned samplesPerSecond;
 

	
 
    ChannelManager* _channelMan;
 
    DataRecorder* _recorder;
 
    QTimer spsTimer;
 

	
 
private slots:
 
    void spsTimerTimeout();
 
};
 

	
 
#endif // ABSTRACTREADER_H
src/asciireader.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include <QtDebug>
 

	
 
#include "asciireader.h"
 

	
 
/// If set to this value number of channels is determined from input
 
#define NUMOFCHANNELS_AUTO   (0)
 

	
 
AsciiReader::AsciiReader(QIODevice* device, ChannelManager* channelMan, QObject *parent) :
 
    AbstractReader(device, channelMan, parent)
 
AsciiReader::AsciiReader(QIODevice* device, ChannelManager* channelMan,
 
                         DataRecorder* recorder, QObject* parent) :
 
    AbstractReader(device, channelMan, recorder, parent)
 
{
 
    paused = false;
 
    discardFirstLine = true;
 

	
 
    _numOfChannels = _settingsWidget.numOfChannels();
 
    autoNumOfChannels = (_numOfChannels == NUMOFCHANNELS_AUTO);
 

	
 
    connect(&_settingsWidget, &AsciiReaderSettings::numOfChannelsChanged,
 
            [this](unsigned value)
 
            {
 
                _numOfChannels = value;
 
                autoNumOfChannels = (_numOfChannels == NUMOFCHANNELS_AUTO);
 
                if (!autoNumOfChannels)
 
                {
 
                    emit numOfChannelsChanged(value);
 
                }
 
            });
 

	
 
    connect(device, &QIODevice::aboutToClose, [this](){discardFirstLine=true;});
 
}
 

	
 
QWidget* AsciiReader::settingsWidget()
 
{
 
    return &_settingsWidget;
 
}
 

	
 
unsigned AsciiReader::numOfChannels()
 
{
 
    // do not allow '0'
 
    if (_numOfChannels == 0)
 
    {
 
        return 1;
 
    }
 
    else
 
    {
 
        return _numOfChannels;
 
    }
 
}
 

	
 
// TODO: this could be a part of AbstractReader
 
void AsciiReader::enable(bool enabled)
 
{
 
    if (enabled)
 
    {
 
        discardFirstLine = true;
 
        QObject::connect(_device, &QIODevice::readyRead,
 
                         this, &AsciiReader::onDataReady);
 
    }
 
    else
 
    {
 
        QObject::disconnect(_device, 0, this, 0);
 
    }
 
}
 

	
 
void AsciiReader::pause(bool enabled)
 
{
 
    paused = enabled;
 
}
 

	
 
void AsciiReader::onDataReady()
 
{
 
    while(_device->canReadLine())
 
    {
 
        QByteArray line = _device->readLine();
 

	
 
        // discard only once when we just started reading
 
        if (discardFirstLine)
 
        {
 
            discardFirstLine = false;
 
            continue;
 
        }
 

	
 
        // discard data if paused
 
        if (paused)
 
        {
 
            continue;
 
        }
 

	
 
        // parse data
 
        line = line.trimmed();
 

	
 
        // Note: When data coming from pseudo terminal is buffered by
 
        // system CR is converted to LF for some reason. This causes
 
        // empty lines in the input when the port is just opened.
 
        if (line.isEmpty())
 
        {
 
            continue;
 
        }
 

	
 
        auto separatedValues = line.split(',');
 

	
 
        unsigned numReadChannels; // effective number of channels to read
 
        unsigned numComingChannels = separatedValues.length();
 

	
 
        if (autoNumOfChannels)
 
        {
 
            // did number of channels changed?
 
            if (numComingChannels != _numOfChannels)
 
            {
 
                _numOfChannels = numComingChannels;
 
                emit numOfChannelsChanged(numComingChannels);
 
            }
 
            numReadChannels = numComingChannels;
 
        }
 
        else if (numComingChannels >= _numOfChannels)
 
        {
 
            numReadChannels = _numOfChannels;
 
        }
 
        else // there is missing channel data
 
        {
 
            numReadChannels = separatedValues.length();
 
            qWarning() << "Incoming data is missing data for some channels!";
 
        }
 

	
 
        // parse read line
 
        double* channelSamples = new double[_numOfChannels]();
 
        for (unsigned ci = 0; ci < numReadChannels; ci++)
 
        {
 
            bool ok;
 
            channelSamples[ci] = separatedValues[ci].toDouble(&ok);
 
            if (!ok)
 
            {
 
                qWarning() << "Data parsing error for channel: " << ci;
 
                channelSamples[ci] = 0;
 
            }
 
        }
 

	
 
        // commit data
 
        addData(channelSamples, _numOfChannels);
 

	
 
        delete[] channelSamples;
 
    }
 
}
 

	
 
void AsciiReader::saveSettings(QSettings* settings)
 
{
 
    _settingsWidget.saveSettings(settings);
 
}
 

	
 
void AsciiReader::loadSettings(QSettings* settings)
 
{
 
    _settingsWidget.loadSettings(settings);
 
}
src/asciireader.h
Show inline comments
 
/*
 
  Copyright © 2016 Hasan Yavuz Özderya
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef ASCIIREADER_H
 
#define ASCIIREADER_H
 

	
 
#include <QSettings>
 

	
 
#include "abstractreader.h"
 
#include "asciireadersettings.h"
 

	
 
class AsciiReader : public AbstractReader
 
{
 
    Q_OBJECT
 

	
 
public:
 
    explicit AsciiReader(QIODevice* device, ChannelManager* channelMan, QObject *parent = 0);
 
    explicit AsciiReader(QIODevice* device, ChannelManager* channelMan,
 
                         DataRecorder* recorder, QObject *parent = 0);
 
    QWidget* settingsWidget();
 
    unsigned numOfChannels();
 
    void enable(bool enabled = true);
 
    /// Stores settings into a `QSettings`
 
    void saveSettings(QSettings* settings);
 
    /// Loads settings from a `QSettings`.
 
    void loadSettings(QSettings* settings);
 

	
 
public slots:
 
    void pause(bool);
 

	
 
private:
 
    AsciiReaderSettings _settingsWidget;
 
    unsigned _numOfChannels;
 
    /// number of channels will be determined from incoming data
 
    unsigned autoNumOfChannels;
 
    bool paused;
 

	
 
    // We may have (usually true) started reading in the middle of a
 
    // line, so its a better idea to just discard first line.
 
    bool discardFirstLine;
 

	
 
private slots:
 
    void onDataReady();
 
};
 

	
 
#endif // ASCIIREADER_H
src/binarystreamreader.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include <QtEndian>
 
#include <QtDebug>
 

	
 
#include "binarystreamreader.h"
 
#include "floatswap.h"
 

	
 
BinaryStreamReader::BinaryStreamReader(QIODevice* device, ChannelManager* channelMan, QObject *parent) :
 
    AbstractReader(device, channelMan, parent)
 
BinaryStreamReader::BinaryStreamReader(QIODevice* device, ChannelManager* channelMan,
 
                                       DataRecorder* recorder, QObject* parent) :
 
    AbstractReader(device, channelMan, recorder, parent)
 
{
 
    paused = false;
 
    skipByteRequested = false;
 
    skipSampleRequested = false;
 

	
 
    _numOfChannels = _settingsWidget.numOfChannels();
 
    connect(&_settingsWidget, &BinaryStreamReaderSettings::numOfChannelsChanged,
 
            this, &BinaryStreamReader::numOfChannelsChanged);
 
    connect(&_settingsWidget, &BinaryStreamReaderSettings::numOfChannelsChanged,
 
            this, &BinaryStreamReader::onNumOfChannelsChanged);
 

	
 
    // initial number format selection
 
    onNumberFormatChanged(_settingsWidget.numberFormat());
 
    connect(&_settingsWidget, &BinaryStreamReaderSettings::numberFormatChanged,
 
            this, &BinaryStreamReader::onNumberFormatChanged);
 

	
 
    // enable skip byte and sample buttons
 
    connect(&_settingsWidget, &BinaryStreamReaderSettings::skipByteRequested,
 
            [this]()
 
            {
 
                skipByteRequested = true;
 
            });
 
    connect(&_settingsWidget, &BinaryStreamReaderSettings::skipSampleRequested,
 
            [this]()
 
            {
 
                skipSampleRequested = true;
 
            });
 
}
 

	
 
QWidget* BinaryStreamReader::settingsWidget()
 
{
 
    return &_settingsWidget;
 
}
 

	
 
unsigned BinaryStreamReader::numOfChannels()
 
{
 
    return _numOfChannels;
 
}
 

	
 
void BinaryStreamReader::enable(bool enabled)
 
{
 
    if (enabled)
 
    {
 
        QObject::connect(_device, &QIODevice::readyRead,
 
                         this, &BinaryStreamReader::onDataReady);
 
    }
 
    else
 
    {
 
        QObject::disconnect(_device, 0, this, 0);
 
    }
 
}
 

	
 
void BinaryStreamReader::pause(bool enabled)
 
{
 
    paused = enabled;
 
}
 

	
 
void BinaryStreamReader::onNumberFormatChanged(NumberFormat numberFormat)
 
{
 
    switch(numberFormat)
 
    {
 
        case NumberFormat_uint8:
 
            sampleSize = 1;
 
            readSample = &BinaryStreamReader::readSampleAs<quint8>;
 
            break;
 
        case NumberFormat_int8:
 
            sampleSize = 1;
 
            readSample = &BinaryStreamReader::readSampleAs<qint8>;
 
            break;
 
        case NumberFormat_uint16:
 
            sampleSize = 2;
 
            readSample = &BinaryStreamReader::readSampleAs<quint16>;
 
            break;
 
        case NumberFormat_int16:
 
            sampleSize = 2;
 
            readSample = &BinaryStreamReader::readSampleAs<qint16>;
 
            break;
 
        case NumberFormat_uint32:
 
            sampleSize = 4;
 
            readSample = &BinaryStreamReader::readSampleAs<quint32>;
 
            break;
 
        case NumberFormat_int32:
 
            sampleSize = 4;
 
            readSample = &BinaryStreamReader::readSampleAs<qint32>;
 
            break;
 
        case NumberFormat_float:
 
            sampleSize = 4;
 
            readSample = &BinaryStreamReader::readSampleAs<float>;
 
            break;
 
        case NumberFormat_INVALID:
 
            Q_ASSERT(1); // never
 
            break;
 
    }
 
}
 

	
 
void BinaryStreamReader::onNumOfChannelsChanged(unsigned value)
 
{
 
    _numOfChannels = value;
 
}
 

	
 
void BinaryStreamReader::onDataReady()
 
{
 
    // a package is a set of channel data like {CHAN0_SAMPLE, CHAN1_SAMPLE...}
 
    int packageSize = sampleSize * _numOfChannels;
 
    int bytesAvailable = _device->bytesAvailable();
 

	
 
    // skip 1 byte if requested
 
    if (bytesAvailable > 0 && skipByteRequested)
 
    {
 
        _device->read(1);
 
        skipByteRequested = false;
 
        bytesAvailable--;
 
    }
 

	
 
    // skip 1 sample (channel) if requested
 
    if (bytesAvailable >= (int) sampleSize && skipSampleRequested)
 
    {
 
        _device->read(sampleSize);
 
        skipSampleRequested = false;
 
        bytesAvailable--;
 
    }
 

	
 
    if (bytesAvailable < packageSize) return;
 

	
 
    int numOfPackagesToRead =
 
        (bytesAvailable - (bytesAvailable % packageSize)) / packageSize;
 

	
 
    if (paused)
 
    {
 
        // read and discard data
 
        _device->read(numOfPackagesToRead*packageSize);
 
        return;
 
    }
 

	
 
    double* channelSamples = new double[numOfPackagesToRead*_numOfChannels];
 

	
 
    for (int i = 0; i < numOfPackagesToRead; i++)
 
    {
 
        for (unsigned int ci = 0; ci < _numOfChannels; ci++)
 
        {
 
            // channelSamples[ci].replace(i, (this->*readSample)());
 
            channelSamples[ci*numOfPackagesToRead+i] = (this->*readSample)();
 
        }
 
    }
 

	
 
    addData(channelSamples, numOfPackagesToRead*_numOfChannels);
 

	
 
    delete[] channelSamples;
 
}
 

	
 
template<typename T> double BinaryStreamReader::readSampleAs()
 
{
 
    T data;
 

	
 
    _device->read((char*) &data, sizeof(data));
 

	
 
    if (_settingsWidget.endianness() == LittleEndian)
 
    {
 
        data = qFromLittleEndian(data);
 
    }
 
    else
 
    {
 
        data = qFromBigEndian(data);
 
    }
 

	
 
    return double(data);
 
}
 

	
 
void BinaryStreamReader::saveSettings(QSettings* settings)
 
{
 
    _settingsWidget.saveSettings(settings);
 
}
 

	
 
void BinaryStreamReader::loadSettings(QSettings* settings)
 
{
 
    _settingsWidget.loadSettings(settings);
 
}
src/binarystreamreader.h
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef BINARYSTREAMREADER_H
 
#define BINARYSTREAMREADER_H
 

	
 
#include <QSettings>
 

	
 
#include "abstractreader.h"
 
#include "binarystreamreadersettings.h"
 

	
 
/**
 
 * Reads a simple stream of samples in binary form from the
 
 * device. There is no means of synchronization other than a button
 
 * that should be manually triggered by user.
 
 */
 
class BinaryStreamReader : public AbstractReader
 
{
 
    Q_OBJECT
 
public:
 
    explicit BinaryStreamReader(QIODevice* device, ChannelManager* channelMan, QObject *parent = 0);
 
    explicit BinaryStreamReader(QIODevice* device, ChannelManager* channelMan,
 
                                DataRecorder* recorder, QObject *parent = 0);
 
    QWidget* settingsWidget();
 
    unsigned numOfChannels();
 
    void enable(bool enabled = true);
 
    /// Stores settings into a `QSettings`
 
    void saveSettings(QSettings* settings);
 
    /// Loads settings from a `QSettings`.
 
    void loadSettings(QSettings* settings);
 

	
 
public slots:
 
    void pause(bool);
 

	
 
private:
 
    BinaryStreamReaderSettings _settingsWidget;
 
    unsigned _numOfChannels;
 
    unsigned sampleSize;
 
    bool paused;
 
    bool skipByteRequested;
 
    bool skipSampleRequested;
 

	
 
    /// points to the readSampleAs function for currently selected number format
 
    double (BinaryStreamReader::*readSample)();
 

	
 
    /**
 
     * Reads 1 sample from the device in given format.
 
     *
 
     * @note Device should already have enough bytes present before
 
     * calling this function.
 
     */
 
    template<typename T> double readSampleAs();
 

	
 
private slots:
 
    void onNumberFormatChanged(NumberFormat numberFormat);
 
    void onNumOfChannelsChanged(unsigned value);
 
    void onDataReady();
 
};
 

	
 
#endif // BINARYSTREAMREADER_H
src/channelmanager.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include <QModelIndex>
 

	
 
#include <QtDebug>
 

	
 
#include "channelmanager.h"
 
#include "setting_defines.h"
 

	
 
ChannelManager::ChannelManager(unsigned numberOfChannels, unsigned numberOfSamples, QObject *parent) :
 
    QObject(parent),
 
    _infoModel(numberOfChannels)
 
{
 
    _numOfChannels = numberOfChannels;
 
    _numOfSamples = numberOfSamples;
 
    _paused = false;
 

	
 
    for (unsigned int i = 0; i < numberOfChannels; i++)
 
    {
 
        channelBuffers.append(new FrameBuffer(numberOfSamples));
 
    }
 

	
 
    connect(&_infoModel, &ChannelInfoModel::dataChanged,
 
            this, &ChannelManager::onChannelInfoChanged);
 
}
 

	
 
ChannelManager::~ChannelManager()
 
{
 
    for (auto buffer : channelBuffers)
 
    {
 
        delete buffer;
 
    }
 
}
 

	
 
unsigned ChannelManager::numOfChannels()
 
{
 
    return channelBuffers.size();
 
}
 

	
 
unsigned ChannelManager::numOfSamples()
 
{
 
    return _numOfSamples;
 
}
 

	
 
void ChannelManager::setNumOfChannels(unsigned number)
 
{
 
    unsigned int oldNum = channelBuffers.size();
 

	
 
    if (number > oldNum)
 
    {
 
        // add new channels
 
        for (unsigned int i = 0; i < number - oldNum; i++)
 
        {
 
            channelBuffers.append(new FrameBuffer(_numOfSamples));
 
        }
 
    }
 
    else if(number < oldNum)
 
    {
 
        // remove channels
 
        for (unsigned int i = oldNum-1; i > number-1; i--)
 
        {
 
            delete channelBuffers.takeLast();
 
        }
 
    }
 

	
 
    _numOfChannels = number;
 
    _infoModel.setNumOfChannels(number);
 

	
 
    emit numOfChannelsChanged(number);
 
}
 

	
 
void ChannelManager::setNumOfSamples(unsigned number)
 
{
 
    _numOfSamples = number;
 

	
 
    for (int ci = 0; ci < channelBuffers.size(); ci++)
 
    {
 
        channelBuffers[ci]->resize(_numOfSamples);
 
    }
 

	
 
    emit numOfSamplesChanged(number);
 
}
 

	
 
void ChannelManager::pause(bool paused)
 
{
 
    _paused = paused;
 
}
 

	
 
FrameBuffer* ChannelManager::channelBuffer(unsigned channel)
 
{
 
    return channelBuffers[channel];
 
}
 

	
 
ChannelInfoModel* ChannelManager::infoModel()
 
{
 
    return &_infoModel;
 
}
 

	
 
QString ChannelManager::channelName(unsigned channel)
 
{
 
    return _infoModel.data(_infoModel.index(channel, ChannelInfoModel::COLUMN_NAME),
 
                           Qt::DisplayRole).toString();
 
}
 

	
 
QStringList ChannelManager::channelNames()
 
{
 
    QStringList list;
 
    for (unsigned ci = 0; ci < _numOfChannels; ci++)
 
    {
 
        list << channelName(ci);
 
    }
 
    return list;
 
}
 

	
 
void ChannelManager::onChannelInfoChanged(const QModelIndex & topLeft,
 
                                          const QModelIndex & bottomRight,
 
                                          const QVector<int> & roles)
 
{
 
    int start = topLeft.row();
 
    int end = bottomRight.row();
 
    int col = topLeft.column();
 

	
 
    for (int ci = start; ci <= end; ci++)
 
    {
 
        for (auto role : roles)
 
        {
 
            switch (role)
 
            {
 
                case Qt::EditRole:
 
                    if (col == ChannelInfoModel::COLUMN_NAME)
 
                    {
 
                        emit channelNameChanged(ci, channelName(ci));
 
                    }
 
                    break;
 
                case Qt::ForegroundRole:
 
                    if (col == ChannelInfoModel::COLUMN_NAME)
 
                    {
 
                        // TODO: emit channel color changed
 
                    }
 
                    break;
 
                case Qt::CheckStateRole:
 
                    if (col == ChannelInfoModel::COLUMN_VISIBILITY)
 
                    {
 
                        // TODO: emit visibility
 
                    }
 
                    break;
 
            }
 
        }
 
        // emit channelNameChanged(i, channelName(i));
 
    }
 
}
 

	
 
void ChannelManager::addData(double* data, unsigned size)
 
{
 
    Q_ASSERT(size % _numOfChannels == 0);
 

	
 
    if (_paused) return;
 

	
 
    int n = size / _numOfChannels;
 
    for (unsigned ci = 0; ci < _numOfChannels; ci++)
 
    {
 
        channelBuffers[ci]->addSamples(&data[ci*n], n);
 
    }
 

	
 
    emit dataAdded();
 
}
 

	
 
void ChannelManager::saveSettings(QSettings* settings)
 
{
 
    _infoModel.saveSettings(settings);
 
}
 

	
 
void ChannelManager::loadSettings(QSettings* settings)
 
{
 
    _infoModel.loadSettings(settings);
 
}
src/channelmanager.h
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef CHANNELMANAGER_H
 
#define CHANNELMANAGER_H
 

	
 
#include <QObject>
 
#include <QStringList>
 
#include <QModelIndex>
 
#include <QVector>
 
#include <QSettings>
 

	
 
#include "framebuffer.h"
 
#include "channelinfomodel.h"
 

	
 
class ChannelManager : public QObject
 
{
 
    Q_OBJECT
 
public:
 
    explicit ChannelManager(unsigned numberOfChannels, unsigned numberOfSamples, QObject *parent = 0);
 
    ~ChannelManager();
 

	
 
    unsigned numOfChannels();
 
    unsigned numOfSamples();
 
    FrameBuffer* channelBuffer(unsigned channel);
 
    // QStringListModel* channelNames();
 
    QString channelName(unsigned channel);
 
    /// Stores channel names into a `QSettings`
 
    void saveSettings(QSettings* settings);
 
    /// Loads channel names from a `QSettings`.
 
    void loadSettings(QSettings* settings);
 
    /// Returns a model that manages channel information (name, color etc)
 
    ChannelInfoModel* infoModel();
 
    /// Returns a list of channel names
 
    QStringList channelNames();
 

	
 
signals:
 
    void numOfChannelsChanged(unsigned value);
 
    void numOfSamplesChanged(unsigned value);
 
    void channelNameChanged(unsigned channel, QString name);
 
    void dataAdded(); ///< emitted when data added to channel man.
 

	
 
public slots:
 
    void setNumOfChannels(unsigned number);
 
    void setNumOfSamples(unsigned number);
 
    /**
 
     * Add data for all channels.
 
     *
 
     * All channels data is provided in a single array which contains equal
 
     * number of samples for all channels. Structure is as shown below:
 
     *
 
     * [CH0_SMP0, CH0_SMP1 ... CH0_SMPN, CH1_SMP0, CH1_SMP1, ... , CHN_SMPN]
 
     *
 
     * @param data samples for all channels
 
     * @param size size of `data`, must be multiple of `numOfChannels`
 
     */
 
    void addData(double* data, unsigned size);
 

	
 
    /// When paused `addData` does nothing.
 
    void pause(bool paused);
 

	
 
private:
 
    unsigned _numOfChannels;
 
    unsigned _numOfSamples;
 
    bool _paused;
 
    QList<FrameBuffer*> channelBuffers;
 
    // QStringListModel _channelNames;
 
    ChannelInfoModel _infoModel;
 

	
 
    void addChannelName(QString name); ///< appends a new channel name at the end of list
 

	
 
private slots:
 
    void onChannelInfoChanged(const QModelIndex & topLeft,
 
                              const QModelIndex & bottomRight,
 
                              const QVector<int> & roles = QVector<int> ());
 
};
 

	
 
#endif // CHANNELMANAGER_H
src/dataformatpanel.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include "dataformatpanel.h"
 
#include "ui_dataformatpanel.h"
 

	
 
#include <QRadioButton>
 
#include <QtEndian>
 
#include <QMap>
 
#include <QtDebug>
 

	
 
#include "utils.h"
 
#include "setting_defines.h"
 
#include "floatswap.h"
 

	
 
DataFormatPanel::DataFormatPanel(QSerialPort* port,
 
                                 ChannelManager* channelMan,
 
                                 DataRecorder* recorder,
 
                                 QWidget *parent) :
 
    QWidget(parent),
 
    ui(new Ui::DataFormatPanel),
 
    bsReader(port, channelMan, this),
 
    asciiReader(port, channelMan, this),
 
    framedReader(port, channelMan, this),
 
    demoReader(port, channelMan, this)
 
    bsReader(port, channelMan, recorder, this),
 
    asciiReader(port, channelMan, recorder, this),
 
    framedReader(port, channelMan, recorder, this),
 
    demoReader(port, channelMan, recorder, this)
 
{
 
    ui->setupUi(this);
 

	
 
    serialPort = port;
 
    _channelMan = channelMan;
 
    paused = false;
 
    demoEnabled = false;
 

	
 
    // initalize default reader
 
    currentReader = &bsReader;
 
    bsReader.enable();
 
    ui->rbBinary->setChecked(true);
 
    ui->horizontalLayout->addWidget(bsReader.settingsWidget(), 1);
 
    connect(&bsReader, SIGNAL(numOfChannelsChanged(unsigned)),
 
            this, SIGNAL(numOfChannelsChanged(unsigned)));
 
    connect(&bsReader, SIGNAL(samplesPerSecondChanged(unsigned)),
 
            this, SIGNAL(samplesPerSecondChanged(unsigned)));
 

	
 
    // initalize reader selection buttons
 
    connect(ui->rbBinary, &QRadioButton::toggled, [this](bool checked)
 
            {
 
                if (checked) selectReader(&bsReader);
 
            });
 

	
 
    connect(ui->rbAscii, &QRadioButton::toggled, [this](bool checked)
 
            {
 
                if (checked) selectReader(&asciiReader);
 
            });
 

	
 
    connect(ui->rbFramed, &QRadioButton::toggled, [this](bool checked)
 
            {
 
                if (checked) selectReader(&framedReader);
 
            });
 

	
 
    // re-purpose numofchannels settings from actual reader settings to demo reader
 
    connect(this, &DataFormatPanel::numOfChannelsChanged,
 
            &demoReader, &DemoReader::setNumOfChannels);
 
}
 

	
 
DataFormatPanel::~DataFormatPanel()
 
{
 
    delete ui;
 
}
 

	
 
unsigned DataFormatPanel::numOfChannels()
 
{
 
    return currentReader->numOfChannels();
 
}
 

	
 
void DataFormatPanel::pause(bool enabled)
 
{
 
    paused = enabled;
 
    currentReader->pause(enabled);
 
    demoReader.pause(enabled);
 
}
 

	
 
void DataFormatPanel::enableDemo(bool enabled)
 
{
 
    if (enabled)
 
    {
 
        demoReader.enable();
 
        demoReader.recording = currentReader->recording;
 
        connect(&demoReader, &DemoReader::samplesPerSecondChanged,
 
                this, &DataFormatPanel::samplesPerSecondChanged);
 
    }
 
    else
 
    {
 
        demoReader.enable(false);
 
        disconnect(&demoReader, 0, this, 0);
 
    }
 
    demoEnabled = enabled;
 
}
 

	
 
void DataFormatPanel::startRecording()
 
{
 
    currentReader->recording = true;
 
    if (demoEnabled) demoReader.recording = true;
 
}
 

	
 
void DataFormatPanel::stopRecording()
 
{
 
    currentReader->recording = false;
 
    if (demoEnabled) demoReader.recording = false;
 
}
 

	
 
void DataFormatPanel::selectReader(AbstractReader* reader)
 
{
 
    currentReader->enable(false);
 
    reader->enable();
 

	
 
    // re-connect signals
 
    disconnect(currentReader, 0, this, 0);
 
    connect(reader, SIGNAL(numOfChannelsChanged(unsigned)),
 
            this, SIGNAL(numOfChannelsChanged(unsigned)));
 
    connect(reader, SIGNAL(samplesPerSecondChanged(unsigned)),
 
            this, SIGNAL(samplesPerSecondChanged(unsigned)));
 

	
 
    // switch the settings widget
 
    ui->horizontalLayout->removeWidget(currentReader->settingsWidget());
 
    currentReader->settingsWidget()->hide();
 
    ui->horizontalLayout->addWidget(reader->settingsWidget(), 1);
 
    reader->settingsWidget()->show();
 

	
 
    // notify if number of channels is different
 
    if (currentReader->numOfChannels() != reader->numOfChannels())
 
    {
 
        emit numOfChannelsChanged(reader->numOfChannels());
 
    }
 

	
 
    // pause
 
    reader->pause(paused);
 
    reader->recording = currentReader->recording;
 

	
 
    currentReader = reader;
 
}
 

	
 
void DataFormatPanel::saveSettings(QSettings* settings)
 
{
 
    settings->beginGroup(SettingGroup_DataFormat);
 

	
 
    // save selected format
 
    QString format;
 
    if (currentReader == &bsReader)
 
    {
 
        format = "binary";
 
    }
 
    else if (currentReader == &asciiReader)
 
    {
 
        format = "ascii";
 
    }
 
    else // framed reader
 
    {
 
        format = "custom";
 
    }
 
    settings->setValue(SG_DataFormat_Format, format);
 

	
 
    settings->endGroup();
 

	
 
    // save reader settings
 
    bsReader.saveSettings(settings);
 
    asciiReader.saveSettings(settings);
 
    framedReader.saveSettings(settings);
 
}
 

	
 
void DataFormatPanel::loadSettings(QSettings* settings)
 
{
 
    settings->beginGroup(SettingGroup_DataFormat);
 

	
 
    // load selected format
 
    QString format = settings->value(
 
        SG_DataFormat_Format, QString()).toString();
 

	
 
    if (format == "binary")
 
    {
 
        selectReader(&bsReader);
 
        ui->rbBinary->setChecked(true);
 
    }
 
    else if (format == "ascii")
 
    {
 
        selectReader(&asciiReader);
 
        ui->rbAscii->setChecked(true);
 
    }
 
    else if (format == "custom")
 
    {
 
        selectReader(&framedReader);
 
        ui->rbFramed->setChecked(true);
 
    } // else current selection stays
 

	
 
    settings->endGroup();
 

	
 
    // load reader settings
 
    bsReader.loadSettings(settings);
 
    asciiReader.loadSettings(settings);
 
    framedReader.loadSettings(settings);
 
}
src/dataformatpanel.h
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef DATAFORMATPANEL_H
 
#define DATAFORMATPANEL_H
 

	
 
#include <QWidget>
 
#include <QButtonGroup>
 
#include <QTimer>
 
#include <QSerialPort>
 
#include <QList>
 
#include <QSettings>
 
#include <QtGlobal>
 

	
 
#include "framebuffer.h"
 
#include "channelmanager.h"
 
#include "binarystreamreader.h"
 
#include "asciireader.h"
 
#include "demoreader.h"
 
#include "framedreader.h"
 
#include "datarecorder.h"
 

	
 
namespace Ui {
 
class DataFormatPanel;
 
}
 

	
 
class DataFormatPanel : public QWidget
 
{
 
    Q_OBJECT
 

	
 
public:
 
    explicit DataFormatPanel(QSerialPort* port,
 
                             ChannelManager* channelMan,
 
                             DataRecorder* recorder,
 
                             QWidget *parent = 0);
 
    ~DataFormatPanel();
 

	
 
    /// Returns currently selected number of channels
 
    unsigned numOfChannels();
 
    /// Stores data format panel settings into a `QSettings`
 
    void saveSettings(QSettings* settings);
 
    /// Loads data format panel settings from a `QSettings`.
 
    void loadSettings(QSettings* settings);
 

	
 
public slots:
 
    void pause(bool);
 
    void enableDemo(bool); // demo shouldn't be enabled when port is open
 

	
 
    /**
 
     * @brief Starts sending data to recorder.
 
     *
 
     * @note recorder must have been started!
 
     */
 
    void startRecording();
 

	
 
    /// Stops recording.
 
    void stopRecording();
 

	
 
signals:
 
    void numOfChannelsChanged(unsigned);
 
    void samplesPerSecondChanged(unsigned);
 

	
 
private:
 
    Ui::DataFormatPanel *ui;
 

	
 
    QSerialPort* serialPort;
 
    ChannelManager* _channelMan;
 

	
 
    BinaryStreamReader bsReader;
 
    AsciiReader asciiReader;
 
    FramedReader framedReader;
 
    /// Currently selected reader
 
    AbstractReader* currentReader;
 
    /// Disable current reader and enable a another one
 
    void selectReader(AbstractReader* reader);
 

	
 
    bool paused;
 

	
 
    bool demoEnabled;
 
    DemoReader demoReader;
 
};
 

	
 
#endif // DATAFORMATPANEL_H
src/demoreader.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include <math.h>
 

	
 
#include "demoreader.h"
 

	
 
#ifndef M_PI
 
#define M_PI 3.14159265358979323846
 
#endif
 

	
 
DemoReader::DemoReader(QIODevice* device, ChannelManager* channelMan, QObject *parent) :
 
    AbstractReader(device, channelMan, parent)
 
DemoReader::DemoReader(QIODevice* device, ChannelManager* channelMan,
 
                       DataRecorder* recorder, QObject* parent) :
 
    AbstractReader(device, channelMan, recorder, parent)
 
{
 
    paused = false;
 
    _numOfChannels = 1;
 
    count = 0;
 
    timer.setInterval(100);
 
    QObject::connect(&timer, &QTimer::timeout,
 
                     this, &DemoReader::demoTimerTimeout);
 
}
 

	
 
QWidget* DemoReader::settingsWidget()
 
{
 
    return NULL;
 
}
 

	
 
void DemoReader::enable(bool enabled)
 
{
 
    if (enabled)
 
    {
 
        timer.start();
 
    }
 
    else
 
    {
 
        timer.stop();
 
    }
 
}
 

	
 
unsigned DemoReader::numOfChannels()
 
{
 
    return _numOfChannels;
 
}
 

	
 
void DemoReader::setNumOfChannels(unsigned value)
 
{
 
    _numOfChannels = value;
 
}
 

	
 
void DemoReader::pause(bool enabled)
 
{
 
    paused = enabled;
 
}
 

	
 
void DemoReader::demoTimerTimeout()
 
{
 
    const double period = 100;
 
    count++;
 
    if (count >= 100) count = 0;
 

	
 
    if (!paused)
 
    {
 
        double* samples = new double[_numOfChannels];
 
        for (unsigned ci = 0; ci < _numOfChannels; ci++)
 
        {
 
            // we are calculating the fourier components of square wave
 
            samples[ci] = 4*sin(2*M_PI*double((ci+1)*count)/period)/((2*(ci+1))*M_PI);
 
        }
 
        addData(samples, _numOfChannels);
 
        delete[] samples;
 
    }
 
}
src/demoreader.h
Show inline comments
 
/*
 
  Copyright © 2016 Hasan Yavuz Özderya
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef DEMOREADER_H
 
#define DEMOREADER_H
 

	
 
#include <QTimer>
 

	
 
#include "abstractreader.h"
 

	
 
/**
 
 * This is a special case of reader implementation and should be used
 
 * with care.
 
 *
 
 * There is no settings widget. Number of channels should be set from
 
 * currently selected actual readers settings widget.
 
 *
 
 * This reader should not be enabled when port is open!
 
 */
 
class DemoReader : public AbstractReader
 
{
 
    Q_OBJECT
 

	
 
public:
 
    explicit DemoReader(QIODevice* device, ChannelManager* channelMan, QObject *parent = 0);
 
    explicit DemoReader(QIODevice* device, ChannelManager* channelMan,
 
                        DataRecorder* recorder, QObject* parent = 0);
 

	
 
    /// Demo reader is an exception so this function returns NULL
 
    QWidget* settingsWidget();
 

	
 
    unsigned numOfChannels();
 

	
 
    void enable(bool enabled = true);
 

	
 
public slots:
 
    void pause(bool);
 

	
 
    /// Sets the number of channels, this doesn't trigger a `numOfChannelsChanged` signal.
 
    void setNumOfChannels(unsigned value);
 

	
 
private:
 
    bool paused;
 
    unsigned _numOfChannels;
 
    QTimer timer;
 
    int count;
 

	
 
private slots:
 
    void demoTimerTimeout();
 
};
 

	
 
#endif // DEMOREADER_H
src/framedreader.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include <QtDebug>
 
#include <QtEndian>
 
#include "floatswap.h"
 

	
 
#include "framedreader.h"
 

	
 
FramedReader::FramedReader(QIODevice* device, ChannelManager* channelMan, QObject *parent) :
 
    AbstractReader(device, channelMan, parent)
 
FramedReader::FramedReader(QIODevice* device, ChannelManager* channelMan,
 
                           DataRecorder* recorder, QObject* parent) :
 
    AbstractReader(device, channelMan, recorder, parent)
 
{
 
    paused = false;
 

	
 
    // initial settings
 
    settingsInvalid = 0;
 
    _numOfChannels = _settingsWidget.numOfChannels();
 
    hasSizeByte = _settingsWidget.frameSize() == 0;
 
    frameSize = _settingsWidget.frameSize();
 
    syncWord = _settingsWidget.syncWord();
 
    checksumEnabled = _settingsWidget.isChecksumEnabled();
 
    onNumberFormatChanged(_settingsWidget.numberFormat());
 
    debugModeEnabled = _settingsWidget.isDebugModeEnabled();
 
    checkSettings();
 

	
 
    // init setting connections
 
    connect(&_settingsWidget, &FramedReaderSettings::numberFormatChanged,
 
            this, &FramedReader::onNumberFormatChanged);
 

	
 
    connect(&_settingsWidget, &FramedReaderSettings::numOfChannelsChanged,
 
            this, &FramedReader::onNumOfChannelsChanged);
 

	
 
    connect(&_settingsWidget, &FramedReaderSettings::syncWordChanged,
 
            this, &FramedReader::onSyncWordChanged);
 

	
 
    connect(&_settingsWidget, &FramedReaderSettings::frameSizeChanged,
 
            this, &FramedReader::onFrameSizeChanged);
 

	
 
    connect(&_settingsWidget, &FramedReaderSettings::checksumChanged,
 
            [this](bool enabled){checksumEnabled = enabled; reset();});
 

	
 
    connect(&_settingsWidget, &FramedReaderSettings::debugModeChanged,
 
            [this](bool enabled){debugModeEnabled = enabled;});
 

	
 
    // init reader state
 
    reset();
 
}
 

	
 
void FramedReader::enable(bool enabled)
 
{
 
    if (enabled)
 
    {
 
        connect(_device, &QIODevice::readyRead,
 
                this, &FramedReader::onDataReady);
 
    }
 
    else
 
    {
 
        QObject::disconnect(_device, 0, this, 0);
 
    }
 
}
 

	
 
QWidget* FramedReader::settingsWidget()
 
{
 
    return &_settingsWidget;
 
}
 

	
 
unsigned FramedReader::numOfChannels()
 
{
 
    return _numOfChannels;
 
}
 

	
 
void FramedReader::pause(bool enabled)
 
{
 
    paused = enabled;
 
}
 

	
 
void FramedReader::onNumberFormatChanged(NumberFormat numberFormat)
 
{
 
    switch(numberFormat)
 
    {
 
        case NumberFormat_uint8:
 
            sampleSize = 1;
 
            readSample = &FramedReader::readSampleAs<quint8>;
 
            break;
 
        case NumberFormat_int8:
 
            sampleSize = 1;
 
            readSample = &FramedReader::readSampleAs<qint8>;
 
            break;
 
        case NumberFormat_uint16:
 
            sampleSize = 2;
 
            readSample = &FramedReader::readSampleAs<quint16>;
 
            break;
 
        case NumberFormat_int16:
 
            sampleSize = 2;
 
            readSample = &FramedReader::readSampleAs<qint16>;
 
            break;
 
        case NumberFormat_uint32:
 
            sampleSize = 4;
 
            readSample = &FramedReader::readSampleAs<quint32>;
 
            break;
 
        case NumberFormat_int32:
 
            sampleSize = 4;
 
            readSample = &FramedReader::readSampleAs<qint32>;
 
            break;
 
        case NumberFormat_float:
 
            sampleSize = 4;
 
            readSample = &FramedReader::readSampleAs<float>;
 
            break;
 
        case NumberFormat_INVALID:
 
            Q_ASSERT(1); // never
 
            break;
 
    }
 

	
 
    checkSettings();
 
    reset();
 
}
 

	
 
void FramedReader::checkSettings()
 
{
 
    // sync word is invalid (empty or missing a nibble at the end)
 
    if (!syncWord.size())
 
    {
 
        settingsInvalid |= SYNCWORD_INVALID;
 
    }
 
    else // sync word is valid
 
    {
 
        settingsInvalid &= ~SYNCWORD_INVALID;
 
    }
 

	
 
    // check if fixed frame size is multiple of a sample set size
 
    if (!hasSizeByte && frameSize % (_numOfChannels * sampleSize) != 0)
 
    {
 
        settingsInvalid |= FRAMESIZE_INVALID;
 
    }
 
    else
 
    {
 
        settingsInvalid &= ~FRAMESIZE_INVALID;
 
    }
 

	
 
    // show an error message
 
    if (settingsInvalid & SYNCWORD_INVALID)
 
    {
 
        _settingsWidget.showMessage("Sync word is invalid!", true);
 
    }
 
    else if (settingsInvalid & FRAMESIZE_INVALID)
 
    {
 
        QString errorMessage =
 
            QString("Frame size must be multiple of %1 (#channels * sample size)!")\
 
            .arg(_numOfChannels * sampleSize);
 

	
 
        _settingsWidget.showMessage(errorMessage, true);
 
    }
 
    else
 
    {
 
        _settingsWidget.showMessage("All is well!");
 
    }
 
}
 

	
 
void FramedReader::onNumOfChannelsChanged(unsigned value)
 
{
 
    _numOfChannels = value;
 
    checkSettings();
 
    reset();
 
    emit numOfChannelsChanged(value);
 
}
 

	
 
void FramedReader::onSyncWordChanged(QByteArray word)
 
{
 
    syncWord = word;
 
    checkSettings();
 
    reset();
 
}
 

	
 
void FramedReader::onFrameSizeChanged(unsigned value)
 
{
 
    if (value == 0)
 
    {
 
        hasSizeByte = true;
 
    }
 
    else
 
    {
 
        hasSizeByte = false;
 
        frameSize = value;
 
    }
 
    checkSettings();
 
    reset();
 
}
 

	
 
void FramedReader::onDataReady()
 
{
 
    if (settingsInvalid) return;
 

	
 
    // loop until we run out of bytes or more bytes is required
 
    unsigned bytesAvailable;
 
    while ((bytesAvailable = _device->bytesAvailable()))
 
    {
 
        if (!gotSync) // read sync word
 
        {
 
            char c;
 
            _device->getChar(&c);
 
            if (c == syncWord[sync_i]) // correct sync byte?
 
            {
 
                sync_i++;
 
                if (sync_i == (unsigned) syncWord.length())
 
                {
 
                    gotSync = true;
 
                }
 
            }
 
            else
 
            {
 
                if (debugModeEnabled) qCritical() << "Missed " << sync_i+1 << "th sync byte.";
 
            }
 
        }
 
        else if (hasSizeByte && !gotSize) // skipped if fixed frame size
 
        {
 
            frameSize = 0;
 
            _device->getChar((char*) &frameSize);
 

	
 
            if (frameSize == 0) // check size
 
            {
 
                qCritical() << "Frame size is 0!";
 
                reset();
 
            }
 
            else if (frameSize % (_numOfChannels * sampleSize) != 0)
 
            {
 
                qCritical() <<
 
                    QString("Frame size is not multiple of %1 (#channels * sample size)!") \
 
                    .arg(_numOfChannels * sampleSize);
 
                reset();
 
            }
 
            else
 
            {
 
                if (debugModeEnabled) qDebug() << "Frame size:" << frameSize;
 
                gotSize = true;
 
            }
 
        }
 
        else // read data bytes
 
        {
 
            // have enough data bytes? (+1 for checksum)
 
            if (bytesAvailable < (checksumEnabled ? frameSize+1 : frameSize))
 
            {
 
                break;
 
            }
 
            else // read data bytes and checksum
 
            {
 
                readFrameDataAndCheck();
 
                reset();
 
            }
 
        }
 
    }
 
}
 

	
 
void FramedReader::reset()
 
{
 
    sync_i = 0;
 
    gotSync = false;
 
    gotSize = false;
 
    if (hasSizeByte) frameSize = 0;
 
    calcChecksum = 0;
 
}
 

	
 
// Important: this function assumes device has enough bytes to read a full frames data and checksum
 
void FramedReader::readFrameDataAndCheck()
 
{
 
    // if paused just read and waste data
 
    if (paused)
 
    {
 
        _device->read((checksumEnabled ? frameSize+1 : frameSize));
 
        return;
 
    }
 

	
 
    // a package is 1 set of samples for all channels
 
    unsigned numOfPackagesToRead = frameSize / (_numOfChannels * sampleSize);
 
    double* channelSamples = new double[numOfPackagesToRead * _numOfChannels];
 

	
 
    for (unsigned i = 0; i < numOfPackagesToRead; i++)
 
    {
 
        for (unsigned int ci = 0; ci < _numOfChannels; ci++)
 
        {
 
            channelSamples[ci*numOfPackagesToRead+i] = (this->*readSample)();
 
        }
 
    }
 

	
 
    // read checksum
 
    unsigned rChecksum = 0;
 
    bool checksumPassed = false;
 
    if (checksumEnabled)
 
    {
 
        _device->read((char*) &rChecksum, 1);
 
        calcChecksum &= 0xFF;
 
        checksumPassed = (calcChecksum == rChecksum);
 
    }
 

	
 
    if (!checksumEnabled || checksumPassed)
 
    {
 
        // commit data
 
        addData(channelSamples, numOfPackagesToRead*_numOfChannels);
 
    }
 
    else
 
    {
 
        qCritical() << "Checksum failed! Received:" << rChecksum << "Calculated:" << calcChecksum;
 
    }
 

	
 
    delete[] channelSamples;
 
}
 

	
 
template<typename T> double FramedReader::readSampleAs()
 
{
 
    T data;
 

	
 
    _device->read((char*) &data, sizeof(data));
 

	
 
    if (checksumEnabled)
 
    {
 
        for (unsigned i = 0; i < sizeof(data); i++)
 
        {
 
            calcChecksum += ((unsigned char*) &data)[i];
 
        }
 
    }
 

	
 
    if (_settingsWidget.endianness() == LittleEndian)
 
    {
 
        data = qFromLittleEndian(data);
 
    }
 
    else
 
    {
 
        data = qFromBigEndian(data);
 
    }
 

	
 
    return double(data);
 
}
 

	
 
void FramedReader::saveSettings(QSettings* settings)
 
{
 
    _settingsWidget.saveSettings(settings);
 
}
 

	
 
void FramedReader::loadSettings(QSettings* settings)
 
{
 
    _settingsWidget.loadSettings(settings);
 
}
src/framedreader.h
Show inline comments
 
/*
 
  Copyright © 2016 Hasan Yavuz Özderya
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef FRAMEDREADER_H
 
#define FRAMEDREADER_H
 

	
 
#include <QSettings>
 

	
 
#include "abstractreader.h"
 
#include "framedreadersettings.h"
 

	
 
/**
 
 * Reads data in a customizable framed format.
 
 */
 
class FramedReader : public AbstractReader
 
{
 
    Q_OBJECT
 

	
 
public:
 
    explicit FramedReader(QIODevice* device, ChannelManager* channelMan, QObject *parent = 0);
 
    explicit FramedReader(QIODevice* device, ChannelManager* channelMan,
 
                          DataRecorder* recorder, QObject *parent = 0);
 
    QWidget* settingsWidget();
 
    unsigned numOfChannels();
 
    void enable(bool enabled = true);
 
    /// Stores settings into a `QSettings`
 
    void saveSettings(QSettings* settings);
 
    /// Loads settings from a `QSettings`.
 
    void loadSettings(QSettings* settings);
 

	
 
public slots:
 
    void pause(bool);
 

	
 
private:
 
    /// bit wise fields for `settingsValid` member
 
    enum SettingInvalidFlag
 
    {
 
        SYNCWORD_INVALID = 1,
 
        FRAMESIZE_INVALID = 2
 
    };
 

	
 
    // settings related members
 
    FramedReaderSettings _settingsWidget;
 
    unsigned _numOfChannels;
 
    unsigned sampleSize;
 
    bool paused;
 
    unsigned settingsInvalid;   /// settings are all valid if this is 0, if not no reading is done
 
    QByteArray syncWord;
 
    bool checksumEnabled;
 
    bool hasSizeByte;
 
    unsigned frameSize;
 
    bool debugModeEnabled;
 

	
 
    /// Checks the validity of syncWord and frameSize then shows an
 
    /// error message. Also updates `settingsInvalid`. If settings are
 
    /// valid `settingsInvalid` should be `0`.
 
    void checkSettings();
 

	
 
    // read state related members
 
    unsigned sync_i; /// sync byte index to be read next
 
    bool gotSync;    /// indicates if sync word is captured
 
    bool gotSize;    /// indicates if size is captured, ignored if size byte is disabled (fixed size)
 
    unsigned calcChecksum;
 

	
 
    void reset();    /// Resets the reading state. Used in case of error or setting change.
 
    /// points to the readSampleAs function for currently selected number format
 
    double (FramedReader::*readSample)();
 
    template<typename T> double readSampleAs();
 
    /// reads payload portion of the frame, calculates checksum and commits data
 
    /// @note should be called only if there are enough bytes on device
 
    void readFrameDataAndCheck();
 

	
 
private slots:
 
    void onDataReady();
 

	
 
    void onNumberFormatChanged(NumberFormat numberFormat);
 
    void onNumOfChannelsChanged(unsigned value);
 
    void onSyncWordChanged(QByteArray);
 
    void onFrameSizeChanged(unsigned);
 
};
 

	
 
#endif // FRAMEDREADER_H
src/mainwindow.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include "mainwindow.h"
 
#include "ui_mainwindow.h"
 
#include <QByteArray>
 
#include <QApplication>
 
#include <QFileDialog>
 
#include <QMessageBox>
 
#include <QFile>
 
#include <QTextStream>
 
#include <QMenu>
 
#include <QDesktopServices>
 
#include <QMap>
 
#include <QtDebug>
 
#include <qwt_plot.h>
 
#include <limits.h>
 
#include <cmath>
 
#include <iostream>
 

	
 
#include <plot.h>
 

	
 
#include "framebufferseries.h"
 
#include "utils.h"
 
#include "defines.h"
 
#include "version.h"
 
#include "setting_defines.h"
 

	
 
#if defined(Q_OS_WIN) && defined(QT_STATIC)
 
#include <QtPlugin>
 
Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
 
#endif
 

	
 
const QMap<int, QString> panelSettingMap({
 
        {0, "Port"},
 
        {1, "DataFormat"},
 
        {2, "Plot"},
 
        {3, "Commands"}
 
    });
 

	
 
MainWindow::MainWindow(QWidget *parent) :
 
    QMainWindow(parent),
 
    ui(new Ui::MainWindow),
 
    aboutDialog(this),
 
    portControl(&serialPort),
 
    channelMan(1, 1, this),
 
    snapshotMan(this, &channelMan),
 
    commandPanel(&serialPort),
 
    dataFormatPanel(&serialPort, &channelMan),
 
    recordPanel(this)
 
    dataFormatPanel(&serialPort, &channelMan, &recorder),
 
    recordPanel(&recorder)
 
{
 
    ui->setupUi(this);
 

	
 
    plotMan = new PlotManager(ui->plotArea, channelMan.infoModel());
 

	
 
    ui->tabWidget->insertTab(0, &portControl, "Port");
 
    ui->tabWidget->insertTab(1, &dataFormatPanel, "Data Format");
 
    ui->tabWidget->insertTab(2, &plotControlPanel, "Plot");
 
    ui->tabWidget->insertTab(3, &commandPanel, "Commands");
 
    ui->tabWidget->insertTab(4, &recordPanel, "Record");
 
    ui->tabWidget->setCurrentIndex(0);
 
    auto tbPortControl = portControl.toolBar();
 
    addToolBar(tbPortControl);
 
    addToolBar(recordPanel.toolbar());
 

	
 
    ui->plotToolBar->addAction(snapshotMan.takeSnapshotAction());
 
    ui->menuBar->insertMenu(ui->menuHelp->menuAction(), snapshotMan.menu());
 
    ui->menuBar->insertMenu(ui->menuHelp->menuAction(), commandPanel.menu());
 

	
 
    connect(&commandPanel, &CommandPanel::focusRequested, [this]()
 
            {
 
                this->ui->tabWidget->setCurrentWidget(&commandPanel);
 
            });
 

	
 
    tbPortControl->setObjectName("tbPortControl");
 
    ui->plotToolBar->setObjectName("tbPlot");
 

	
 
    setupAboutDialog();
 

	
 
    // init view menu
 
    for (auto a : plotMan->menuActions())
 
    {
 
        ui->menuView->addAction(a);
 
    }
 

	
 
    ui->menuView->addSeparator();
 

	
 
    QMenu* tbMenu = ui->menuView->addMenu("Toolbars");
 
    tbMenu->addAction(ui->plotToolBar->toggleViewAction());
 
    tbMenu->addAction(portControl.toolBar()->toggleViewAction());
 

	
 
    // init UI signals
 

	
 
    // Help menu signals
 
    QObject::connect(ui->actionHelpAbout, &QAction::triggered,
 
              &aboutDialog, &QWidget::show);
 

	
 
    QObject::connect(ui->actionReportBug, &QAction::triggered,
 
                     [](){QDesktopServices::openUrl(QUrl(BUG_REPORT_URL));});
 

	
 
    // File menu signals
 
    QObject::connect(ui->actionExportCsv, &QAction::triggered,
 
                     this, &MainWindow::onExportCsv);
 

	
 
    QObject::connect(ui->actionSaveSettings, &QAction::triggered,
 
                     this, &MainWindow::onSaveSettings);
 

	
 
    QObject::connect(ui->actionLoadSettings, &QAction::triggered,
 
                     this, &MainWindow::onLoadSettings);
 

	
 
    ui->actionQuit->setShortcutContext(Qt::ApplicationShortcut);
 

	
 
    QObject::connect(ui->actionQuit, &QAction::triggered,
 
                     this, &MainWindow::close);
 

	
 
    // port control signals
 
    QObject::connect(&portControl, &PortControl::portToggled,
 
                     this, &MainWindow::onPortToggled);
 

	
 
    connect(&plotControlPanel, &PlotControlPanel::numOfSamplesChanged,
 
            this, &MainWindow::onNumOfSamplesChanged);
 

	
 
    connect(&plotControlPanel, &PlotControlPanel::numOfSamplesChanged,
 
            plotMan, &PlotManager::onNumOfSamplesChanged);
 

	
 
    connect(&plotControlPanel, &PlotControlPanel::scaleChanged,
 
            plotMan, &PlotManager::setAxis);
 

	
 
    QObject::connect(ui->actionClear, SIGNAL(triggered(bool)),
 
                     this, SLOT(clearPlot()));
 

	
 
    QObject::connect(snapshotMan.takeSnapshotAction(), &QAction::triggered,
 
                     plotMan, &PlotManager::flashSnapshotOverlay);
 

	
 
    // init port signals
 
    QObject::connect(&(this->serialPort), SIGNAL(error(QSerialPort::SerialPortError)),
 
                     this, SLOT(onPortError(QSerialPort::SerialPortError)));
 

	
 
    // TODO: `replot` must be triggered from ChannelManager
 
    // init data format and reader
 
    QObject::connect(&channelMan, &ChannelManager::dataAdded,
 
                     plotMan, &PlotManager::replot);
 

	
 
    QObject::connect(ui->actionPause, &QAction::triggered,
 
                     &dataFormatPanel, &DataFormatPanel::pause);
 
                     &channelMan, &ChannelManager::pause);
 

	
 
    QObject::connect(&recordPanel, &RecordPanel::recordStarted,
 
                     &dataFormatPanel, &DataFormatPanel::startRecording);
 

	
 
    QObject::connect(&recordPanel, &RecordPanel::recordStopped,
 
                     &dataFormatPanel, &DataFormatPanel::stopRecording);
 

	
 
    QObject::connect(ui->actionPause, &QAction::triggered,
 
                     [this](bool enabled)
 
                     {
 
                         if (enabled && !recordPanel.recordPaused())
 
                         {
 
                             dataFormatPanel.pause(true);
 
                         }
 
                         else
 
                         {
 
                             dataFormatPanel.pause(false);
 
                         }
 
                     });
 

	
 
    QObject::connect(&recordPanel, &RecordPanel::recordPausedChanged,
 
                     [this](bool enabled)
 
                     {
 
                         if (ui->actionPause->isChecked() && enabled)
 
                         {
 
                             dataFormatPanel.pause(false);
 
                         }
 
                     });
 

	
 
    // init data arrays and plot
 
    numOfSamples = plotControlPanel.numOfSamples();
 
    unsigned numOfChannels = dataFormatPanel.numOfChannels();
 

	
 
    channelMan.setNumOfSamples(numOfSamples);
 
    channelMan.setNumOfChannels(dataFormatPanel.numOfChannels());
 

	
 
    connect(&dataFormatPanel, &DataFormatPanel::numOfChannelsChanged,
 
            &channelMan, &ChannelManager::setNumOfChannels);
 

	
 
    connect(&channelMan, &ChannelManager::numOfChannelsChanged,
 
            this, &MainWindow::onNumOfChannelsChanged);
 

	
 
    plotControlPanel.setChannelInfoModel(channelMan.infoModel());
 

	
 
    // init curve list
 
    for (unsigned int i = 0; i < numOfChannels; i++)
 
    {
 
        plotMan->addCurve(channelMan.channelName(i), channelMan.channelBuffer(i));
 
    }
 

	
 
    // init auto scale
 
    plotMan->setAxis(plotControlPanel.autoScale(),
 
                     plotControlPanel.yMin(), plotControlPanel.yMax());
 

	
 
    // Init sps (sample per second) counter
 
    spsLabel.setText("0sps");
 
    spsLabel.setToolTip("samples per second (per channel)");
 
    ui->statusBar->addPermanentWidget(&spsLabel);
 
    QObject::connect(&dataFormatPanel,
 
                     &DataFormatPanel::samplesPerSecondChanged,
 
                     this, &MainWindow::onSpsChanged);
 

	
 
    // init demo
 
    QObject::connect(ui->actionDemoMode, &QAction::toggled,
 
                     this, &MainWindow::enableDemo);
 

	
 
    QObject::connect(ui->actionDemoMode, &QAction::toggled,
 
                     plotMan, &PlotManager::showDemoIndicator);
 

	
 
    // load default settings
 
    QSettings settings("serialplot", "serialplot");
 
    loadAllSettings(&settings);
 

	
 
    // ensure command panel has 1 command if none loaded
 
    if (!commandPanel.numOfCommands())
 
    {
 
        commandPanel.newCommandAction()->trigger();
 
    }
 

	
 
    // Important: This should be after newCommandAction is triggered
 
    // (above) we don't want user to be greeted with command panel on
 
    // the very first run.
 
    connect(commandPanel.newCommandAction(), &QAction::triggered, [this]()
 
            {
 
                this->ui->tabWidget->setCurrentWidget(&commandPanel);
 
            });
 
}
 

	
 
MainWindow::~MainWindow()
 
{
 
    // save settings
 
    QSettings settings("serialplot", "serialplot");
 
    saveAllSettings(&settings);
 

	
 
    if (serialPort.isOpen())
 
    {
 
        serialPort.close();
 
    }
 

	
 
    delete plotMan;
 

	
 
    delete ui;
 
    ui = NULL; // we check if ui is deleted in messageHandler
 
}
 

	
 
void MainWindow::closeEvent(QCloseEvent * event)
 
{
 
    if (!snapshotMan.isAllSaved())
 
    {
 
        auto clickedButton = QMessageBox::warning(
 
            this, "Closing SerialPlot",
 
            "There are un-saved snapshots. If you close you will loose the data.",
 
            QMessageBox::Discard | QMessageBox::Discard,
 
            QMessageBox::Cancel);
 
        if (clickedButton == QMessageBox::Cancel)
 
        {
 
            event->ignore();
 
            return;
 
        }
 
    }
 
    QMainWindow::closeEvent(event);
 
}
 

	
 
void MainWindow::setupAboutDialog()
 
{
 
    Ui_AboutDialog uiAboutDialog;
 
    uiAboutDialog.setupUi(&aboutDialog);
 

	
 
    QObject::connect(uiAboutDialog.pbAboutQt, &QPushButton::clicked,
 
                     [](){ QApplication::aboutQt();});
 

	
 
    QString aboutText = uiAboutDialog.lbAbout->text();
 
    aboutText.replace("$VERSION_STRING$", VERSION_STRING);
 
    aboutText.replace("$VERSION_REVISION$", VERSION_REVISION);
 
    uiAboutDialog.lbAbout->setText(aboutText);
 
}
 

	
 
void MainWindow::onPortToggled(bool open)
 
{
 
    // make sure demo mode is disabled
 
    if (open && isDemoRunning()) enableDemo(false);
 
    ui->actionDemoMode->setEnabled(!open);
 
}
 

	
 
void MainWindow::onPortError(QSerialPort::SerialPortError error)
 
{
 
    switch(error)
 
    {
 
        case QSerialPort::NoError :
 
            break;
 
        case QSerialPort::ResourceError :
 
            qWarning() << "Port error: resource unavaliable; most likely device removed.";
 
            if (serialPort.isOpen())
 
            {
 
                qWarning() << "Closing port on resource error: " << serialPort.portName();
 
                portControl.togglePort();
 
            }
 
            portControl.loadPortList();
 
            break;
 
        case QSerialPort::DeviceNotFoundError:
 
            qCritical() << "Device doesn't exists: " << serialPort.portName();
 
            break;
 
        case QSerialPort::PermissionError:
 
            qCritical() << "Permission denied. Either you don't have \
 
required privileges or device is already opened by another process.";
 
            break;
 
        case QSerialPort::OpenError:
 
            qWarning() << "Device is already opened!";
 
            break;
 
        case QSerialPort::NotOpenError:
 
            qCritical() << "Device is not open!";
 
            break;
 
        case QSerialPort::ParityError:
 
            qCritical() << "Parity error detected.";
 
            break;
 
        case QSerialPort::FramingError:
 
            qCritical() << "Framing error detected.";
 
            break;
 
        case QSerialPort::BreakConditionError:
 
            qCritical() << "Break condition is detected.";
 
            break;
 
        case QSerialPort::WriteError:
 
            qCritical() << "An error occurred while writing data.";
 
            break;
 
        case QSerialPort::ReadError:
 
            qCritical() << "An error occurred while reading data.";
 
            break;
 
        case QSerialPort::UnsupportedOperationError:
 
            qCritical() << "Operation is not supported.";
 
            break;
 
        case QSerialPort::TimeoutError:
 
            qCritical() << "A timeout error occurred.";
 
            break;
 
        case QSerialPort::UnknownError:
 
            qCritical() << "Unknown error! Error: " << serialPort.errorString();
 
            break;
 
        default:
 
            qCritical() << "Unhandled port error: " << error;
 
            break;
 
    }
 
}
 

	
 
void MainWindow::clearPlot()
 
{
 
    for (unsigned ci = 0; ci < channelMan.numOfChannels(); ci++)
 
    {
 
        channelMan.channelBuffer(ci)->clear();
 
    }
 
    plotMan->replot();
 
}
 

	
 
void MainWindow::onNumOfSamplesChanged(int value)
 
{
 
    numOfSamples = value;
 
    channelMan.setNumOfSamples(value);
 
    plotMan->replot();
 
}
 

	
 
void MainWindow::onNumOfChannelsChanged(unsigned value)
 
{
 
    unsigned int oldNum = plotMan->numOfCurves();
 
    unsigned numOfChannels = value;
 

	
 
    if (numOfChannels > oldNum)
 
    {
 
        // add new channels
 
        for (unsigned int i = oldNum; i < numOfChannels; i++)
 
        {
 
            plotMan->addCurve(channelMan.channelName(i), channelMan.channelBuffer(i));
 
        }
 
    }
 
    else if(numOfChannels < oldNum)
 
    {
 
        plotMan->removeCurves(oldNum - numOfChannels);
 
    }
 

	
 
    plotMan->replot();
 
}
 

	
 
void MainWindow::onSpsChanged(unsigned sps)
 
{
 
    spsLabel.setText(QString::number(sps) + "sps");
 
}
 

	
 
bool MainWindow::isDemoRunning()
 
{
 
    return ui->actionDemoMode->isChecked();
 
}
 

	
 
void MainWindow::enableDemo(bool enabled)
 
{
 
    if (enabled)
 
    {
 
        if (!serialPort.isOpen())
 
        {
 
            dataFormatPanel.enableDemo(true);
 
        }
 
        else
 
        {
 
            ui->actionDemoMode->setChecked(false);
 
        }
 
    }
 
    else
 
    {
 
        dataFormatPanel.enableDemo(false);
 
        ui->actionDemoMode->setChecked(false);
 
    }
 
}
 

	
 
void MainWindow::onExportCsv()
 
{
 
    bool wasPaused = ui->actionPause->isChecked();
 
    ui->actionPause->setChecked(true); // pause plotting
 

	
 
    QString fileName = QFileDialog::getSaveFileName(this, tr("Export CSV File"));
 

	
 
    if (fileName.isNull())  // user canceled export
 
    {
 
        ui->actionPause->setChecked(wasPaused);
 
    }
 
    else
 
    {
 
        Snapshot* snapshot = snapshotMan.makeSnapshot();
 
        snapshot->save(fileName);
 
        delete snapshot;
 
    }
 
}
 

	
 
void MainWindow::messageHandler(QtMsgType type,
 
                                const QMessageLogContext &context,
 
                                const QString &msg)
 
{
 
    QString logString;
 

	
 
    switch (type)
 
    {
 
#if (QT_VERSION >= QT_VERSION_CHECK(5, 5, 0))
 
        case QtInfoMsg:
 
            logString = "[Info] " + msg;
 
            break;
 
#endif
 
        case QtDebugMsg:
 
            logString = "[Debug] " + msg;
 
            break;
 
        case QtWarningMsg:
 
            logString = "[Warning] " + msg;
 
            break;
 
        case QtCriticalMsg:
 
            logString = "[Error] " + msg;
 
            break;
 
        case QtFatalMsg:
 
            logString = "[Fatal] " + msg;
 
            break;
 
    }
 

	
 
    if (ui != NULL) ui->ptLog->appendPlainText(logString);
 
    std::cerr << logString.toStdString() << std::endl;
 

	
 
    if (type != QtDebugMsg && ui != NULL)
 
    {
 
        ui->statusBar->showMessage(msg, 5000);
 
    }
 

	
 
    if (type == QtFatalMsg)
 
    {
 
        __builtin_trap();
 
    }
 
}
 

	
 
void MainWindow::saveAllSettings(QSettings* settings)
 
{
 
    saveMWSettings(settings);
 
    portControl.saveSettings(settings);
 
    dataFormatPanel.saveSettings(settings);
 
    channelMan.saveSettings(settings);
 
    plotControlPanel.saveSettings(settings);
 
    plotMan->saveSettings(settings);
 
    commandPanel.saveSettings(settings);
 
}
 

	
 
void MainWindow::loadAllSettings(QSettings* settings)
 
{
 
    loadMWSettings(settings);
 
    portControl.loadSettings(settings);
 
    dataFormatPanel.loadSettings(settings);
 
    channelMan.loadSettings(settings);
 
    plotControlPanel.loadSettings(settings);
 
    plotMan->loadSettings(settings);
 
    commandPanel.loadSettings(settings);
 
}
 

	
 
void MainWindow::saveMWSettings(QSettings* settings)
 
{
 
    // save window geometry
 
    settings->beginGroup(SettingGroup_MainWindow);
 
    settings->setValue(SG_MainWindow_Size, size());
 
    settings->setValue(SG_MainWindow_Pos, pos());
 
    // save active panel
 
    settings->setValue(SG_MainWindow_ActivePanel,
 
                       panelSettingMap.value(ui->tabWidget->currentIndex()));
 
    // save panel minimization
 
    settings->setValue(SG_MainWindow_HidePanels,
 
                       ui->tabWidget->hideAction.isChecked());
 
    // save window maximized state
 
    settings->setValue(SG_MainWindow_Maximized,
 
                       bool(windowState() & Qt::WindowMaximized));
 
    // save toolbar/dockwidgets state
 
    settings->setValue(SG_MainWindow_State, saveState());
 
    settings->endGroup();
 
}
 

	
 
void MainWindow::loadMWSettings(QSettings* settings)
 
{
 
    settings->beginGroup(SettingGroup_MainWindow);
 
    // load window geometry
 
    resize(settings->value(SG_MainWindow_Size, size()).toSize());
 
    move(settings->value(SG_MainWindow_Pos, pos()).toPoint());
 

	
 
    // set active panel
 
    QString tabSetting =
 
        settings->value(SG_MainWindow_ActivePanel, QString()).toString();
 
    ui->tabWidget->setCurrentIndex(
 
        panelSettingMap.key(tabSetting, ui->tabWidget->currentIndex()));
 

	
 
    // hide panels
 
    ui->tabWidget->hideAction.setChecked(
 
        settings->value(SG_MainWindow_HidePanels,
 
                        ui->tabWidget->hideAction.isChecked()).toBool());
 

	
 
    // maximize window
 
    if (settings->value(SG_MainWindow_Maximized).toBool())
 
    {
 
        showMaximized();
 
    }
 

	
 
    // load toolbar/dockwidgets state
 
    restoreState(settings->value(SG_MainWindow_State).toByteArray());
 
    settings->setValue(SG_MainWindow_State, saveState());
 

	
 
    settings->endGroup();
 
}
 

	
 
void MainWindow::onSaveSettings()
 
{
 
    QString fileName = QFileDialog::getSaveFileName(
 
        this, tr("Save Settings"), QString(), "INI (*.ini)");
 

	
 
    if (!fileName.isNull()) // user canceled
 
    {
 
        QSettings settings(fileName, QSettings::IniFormat);
 
        saveAllSettings(&settings);
 
    }
src/mainwindow.h
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef MAINWINDOW_H
 
#define MAINWINDOW_H
 

	
 
#include <QMainWindow>
 
#include <QButtonGroup>
 
#include <QLabel>
 
#include <QString>
 
#include <QVector>
 
#include <QList>
 
#include <QSerialPort>
 
#include <QSignalMapper>
 
#include <QTimer>
 
#include <QColor>
 
#include <QtGlobal>
 
#include <QSettings>
 
#include <qwt_plot_curve.h>
 

	
 
#include "portcontrol.h"
 
#include "commandpanel.h"
 
#include "dataformatpanel.h"
 
#include "plotcontrolpanel.h"
 
#include "recordpanel.h"
 
#include "ui_about_dialog.h"
 
#include "framebuffer.h"
 
#include "channelmanager.h"
 
#include "snapshotmanager.h"
 
#include "plotmanager.h"
 
#include "datarecorder.h"
 

	
 
namespace Ui {
 
class MainWindow;
 
}
 

	
 
class MainWindow : public QMainWindow
 
{
 
    Q_OBJECT
 

	
 
public:
 
    explicit MainWindow(QWidget *parent = 0);
 
    ~MainWindow();
 

	
 
    void messageHandler(QtMsgType type, const QMessageLogContext &context,
 
                        const QString &msg);
 

	
 
private:
 
    Ui::MainWindow *ui;
 

	
 
    QDialog aboutDialog;
 
    void setupAboutDialog();
 

	
 
    QSerialPort serialPort;
 
    PortControl portControl;
 

	
 
    unsigned int numOfSamples;
 

	
 
    QList<QwtPlotCurve*> curves;
 
    ChannelManager channelMan;
 
    PlotManager* plotMan;
 
    SnapshotManager snapshotMan;
 
    DataRecorder recorder;       // operated by `recordPanel`
 

	
 
    QLabel spsLabel;
 
    CommandPanel commandPanel;
 
    DataFormatPanel dataFormatPanel;
 
    RecordPanel recordPanel;
 
    PlotControlPanel plotControlPanel;
 
    RecordPanel recordPanel;
 

	
 
    bool isDemoRunning();
 
    /// Stores settings for all modules
 
    void saveAllSettings(QSettings* settings);
 
    /// Load settings for all modules
 
    void loadAllSettings(QSettings* settings);
 
    /// Stores main window settings into a `QSettings`
 
    void saveMWSettings(QSettings* settings);
 
    /// Loads main window settings from a `QSettings`
 
    void loadMWSettings(QSettings* settings);
 

	
 
    /// `QWidget::closeEvent` handler
 
    void closeEvent(QCloseEvent * event);
 

	
 
private slots:
 
    void onPortToggled(bool open);
 
    void onPortError(QSerialPort::SerialPortError error);
 

	
 
    void onNumOfSamplesChanged(int value);
 
    void onNumOfChannelsChanged(unsigned value);
 

	
 
    void clearPlot();
 
    void onSpsChanged(unsigned sps);
 
    void enableDemo(bool enabled);
 
    void onExportCsv();
 
    void onSaveSettings();
 
    void onLoadSettings();
 
};
 

	
 
#endif // MAINWINDOW_H
src/recordpanel.cpp
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include "recordpanel.h"
 
#include "ui_recordpanel.h"
 

	
 
#include <QIcon>
 
#include <QFile>
 
#include <QFileInfo>
 
#include <QMessageBox>
 
#include <QFileDialog>
 
#include <QRegularExpression>
 

	
 
#include <QtDebug>
 

	
 
RecordPanel::RecordPanel(QWidget *parent) :
 
RecordPanel::RecordPanel(DataRecorder* recorder, QWidget *parent) :
 
    QWidget(parent),
 
    ui(new Ui::RecordPanel),
 
    recordToolBar(tr("Record Toolbar")),
 
    recordAction(QIcon::fromTheme("media-record"), tr("Record"), this),
 
    recorder(this)
 
    recordAction(QIcon::fromTheme("media-record"), tr("Record"), this)
 
{
 
    overwriteSelected = false;
 
    _recorder = recorder;
 

	
 
    ui->setupUi(this);
 

	
 
    recordToolBar.setObjectName("tbRecord");
 

	
 
    recordAction.setCheckable(true);
 
    recordToolBar.addAction(&recordAction);
 
    ui->pbRecord->setDefaultAction(&recordAction);
 

	
 
    connect(ui->pbBrowse, &QPushButton::clicked,
 
            this, &RecordPanel::selectFile);
 
    connect(&recordAction, &QAction::triggered,
 
            this, &RecordPanel::onRecord);
 

	
 
    connect(ui->cbRecordPaused, SIGNAL(toggled(bool)),
 
            this, SIGNAL(recordPausedChanged(bool)));
 
}
 

	
 
RecordPanel::~RecordPanel()
 
{
 
    delete ui;
 
}
 

	
 
QToolBar* RecordPanel::toolbar()
 
{
 
    return &recordToolBar;
 
}
 

	
 
bool RecordPanel::isRecording()
 
{
 
    return recordAction.isChecked();
 
}
 

	
 
bool RecordPanel::recordPaused()
 
{
 
    return ui->cbRecordPaused->isChecked();
 
}
 

	
 
bool RecordPanel::selectFile()
 
{
 
    QString fileName = QFileDialog::getSaveFileName(
 
        parentWidget(), tr("Select recording file"));
 

	
 
    if (fileName.isEmpty())
 
    {
 
        return false;
 
    }
 
    else
 
    {
 
        selectedFile = fileName;
 
        ui->lbFileName->setText(selectedFile);
 
        overwriteSelected = QFile::exists(fileName);
 
        return true;
 
    }
 
}
 

	
 
void RecordPanel::onRecord(bool start)
 
{
 
    if (!start)
 
    {
 
        stopRecording();
 
        return;
 
    }
 

	
 
    // check file name
 
    bool canceled = false;
 
    if (selectedFile.isEmpty() && !selectFile())
 
    {
 
        canceled = true;
 
    }
 

	
 
    if (!overwriteSelected && QFile::exists(selectedFile))
 
    {
 
        if (ui->cbAutoIncrement->isChecked())
 
        {
 
            // TODO: should we increment even if user selected to replace?
 
            canceled = !incrementFileName();
 
        }
 
        else
 
        {
 
            canceled = !confirmOverwrite(selectedFile);
 
        }
 
    }
 
    overwriteSelected = false;
 

	
 
    if (canceled)
 
    {
 
        recordAction.setChecked(false);
 
    }
 
    else
 
    {
 
        startRecording();
 
    }
 
}
 

	
 
bool RecordPanel::incrementFileName(void)
 
{
 
    QFileInfo fileInfo(selectedFile);
 

	
 
    QString base = fileInfo.completeBaseName();
 
    QRegularExpression regex("(.*?)(\\d+)(?!.*\\d)(.*)");
 
    auto match = regex.match(base);
 

	
 
    if (match.hasMatch())
 
    {
 
        bool ok;
 
        int fileNum = match.captured(2).toInt(&ok);
 
        base = match.captured(1) + QString::number(fileNum + 1) + match.captured(3);
 
    }
 
    else
 
    {
 
        base += "_1";
 
    }
 

	
 
    QString suffix = fileInfo.suffix();;
 
    if (!suffix.isEmpty())
 
    {
 
        suffix = "." + suffix;
 
    }
 

	
 
    QString autoFileName = fileInfo.path() + "/" + base + suffix;
 

	
 
    // check if auto generated file name exists, ask user another name
 
    if (QFile::exists(autoFileName))
 
    {
 
        if (!confirmOverwrite(autoFileName))
 
        {
 
            return false;
 
        }
 
    }
 
    else
 
    {
 
        selectedFile = autoFileName;
 
    }
 

	
 
    ui->lbFileName->setText(selectedFile);
 
    return true;
 
}
 

	
 
bool RecordPanel::confirmOverwrite(QString fileName)
 
{
 
    // prepare message box
 
    QMessageBox mb(parentWidget());
 
    mb.setWindowTitle(tr("File Already Exists"));
 
    mb.setIcon(QMessageBox::Warning);
 
    mb.setText(tr("File (%1) already exists. How to continue?").arg(fileName));
 

	
 
    auto bCancel    = mb.addButton(QMessageBox::Cancel);
 
    auto bOverwrite = mb.addButton(tr("Overwrite"), QMessageBox::DestructiveRole);
 
    mb.addButton(tr("Select Another File"), QMessageBox::YesRole);
 

	
 
    mb.setEscapeButton(bCancel);
 

	
 
    // show message box
 
    mb.exec();
 

	
 
    if (mb.clickedButton() == bCancel)
 
    {
 
        return false;
 
    }
 
    else if (mb.clickedButton() == bOverwrite)
 
    {
 
        selectedFile = fileName;
 
        return true;
 
    }
 
    else                    // select button
 
    {
 
        return selectFile();
 
    }
 
}
 

	
 
void RecordPanel::startRecording(void)
 
{
 
    qDebug() << "start recording";
 

	
 
    // TEST CODE
 
    QStringList cn;
 
    cn << "chan0" << "chan1" << "chan2";
 
    // cn << "chan0" << "chan1" << "chan2";
 

	
 
    recorder.startRecording(selectedFile, cn);
 
    _recorder->startRecording(selectedFile, cn);
 

	
 
    // add test data
 
    double data[3] = {15., 15., 15.};
 
    recorder.addData(data, 3, 3);
 
    // double data[3] = {15., 15., 15.};
 
    // _recorder.addData(data, 3, 3);
 
    emit recordStarted();
 
}
 

	
 
void RecordPanel::stopRecording(void)
 
{
 
    // TODO
 
    qDebug() << "stop recording";
 
    recorder.stopRecording();
 
    emit recordStopped();
 
    _recorder->stopRecording();
 
}
src/recordpanel.h
Show inline comments
 
/*
 
  Copyright © 2017 Hasan Yavuz Özderya
 

	
 
  This file is part of serialplot.
 

	
 
  serialplot 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 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#ifndef RECORDPANEL_H
 
#define RECORDPANEL_H
 

	
 
#include <QWidget>
 
#include <QString>
 
#include <QToolBar>
 
#include <QAction>
 

	
 
#include "datarecorder.h"
 

	
 
namespace Ui {
 
class RecordPanel;
 
}
 

	
 
class RecordPanel : public QWidget
 
{
 
    Q_OBJECT
 

	
 
public:
 
    explicit RecordPanel(QWidget *parent = 0);
 
    explicit RecordPanel(DataRecorder* recorder, QWidget* parent = 0);
 
    ~RecordPanel();
 

	
 
    QToolBar* toolbar();
 

	
 
    bool isRecording();
 
    bool recordPaused();
 

	
 
signals:
 
    void recordStarted();
 
    void recordStopped();
 
    void recordPausedChanged(bool enabled);
 

	
 
private:
 
    Ui::RecordPanel *ui;
 
    QToolBar recordToolBar;
 
    QAction recordAction;
 
    QString selectedFile;
 
    bool overwriteSelected;
 
    DataRecorder recorder;
 
    DataRecorder* _recorder;
 

	
 
    /**
 
     * @brief Increments the file name.
 
     *
 
     * If file name doesn't have a number at the end of it, a number is appended
 
     * with underscore starting from 1.
 
     *
 
     * @return false if user cancels
 
     */
 
    bool incrementFileName(void);
 

	
 
    /**
 
     * @brief Used to ask user confirmation if auto generated file
 
     * name exists.
 
     *
 
     * If user confirms overwrite, `selectedFile` is set to
 
     * `fileName`. User is also given option to select file and is
 
     * shown a file select dialog in this case.
 
     *
 
     * @param fileName auto generated file name.
 
     * @return false if user cancels
 
     */
 
    bool confirmOverwrite(QString fileName);
 

	
 
    void startRecording(void);
 
    void stopRecording(void);
 

	
 
private slots:
 
    /**
 
     * @brief Opens up the file select dialog
 
     *
 
     * If you cancel the selection operation, currently selected file is not
 
     * changed.
 
     *
 
     * @return true if file selected, false if user cancels
 
     */
 
    bool selectFile();
 

	
 
    void onRecord(bool start);
 

	
 
};
 

	
 
#endif // RECORDPANEL_H
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