if (isMulti)

    {

        // add new widgets and attach

        for (auto curve : curves)

        {

            curve->attach(addPlotWidget());

        }

    }

    else

    {

        // add a single widget

        auto plot = addPlotWidget();

        // attach all curves

        for (auto curve : curves)

        {

            curve->attach(plot);

        }

    }

}

void PlotManager::setupLayout(bool multiPlot)

{

    // delete previous layout if it exists

    if (_plotArea->layout() != 0)

    {

        delete _plotArea->layout();

    }

    if (multiPlot)

    {

        // setup a scroll area

        scrollArea = new QScrollArea();

        auto scrolledPlotArea = new QWidget(scrollArea);

        scrollArea->setWidget(scrolledPlotArea);

        scrollArea->setWidgetResizable(true);

        _plotArea->setLayout(new QVBoxLayout());

        _plotArea->layout()->addWidget(scrollArea);

        _plotArea->layout()->setContentsMargins(0,0,0,0);

        layout = new QVBoxLayout(scrolledPlotArea);

    }

    else

    {

        // delete scrollArea left from multi layout

        if (scrollArea != NULL)

        {

            delete scrollArea;

            scrollArea = NULL;

        }

        layout = new QVBoxLayout(_plotArea);

    }

    layout->setContentsMargins(2,2,2,2);

    layout->setSpacing(1);

}

Plot* PlotManager::addPlotWidget()

{

    auto plot = new Plot();

    plotWidgets.append(plot);

    layout->addWidget(plot);

    plot->darkBackground(darkBackgroundAction.isChecked());

    plot->showGrid(showGridAction.isChecked());

    plot->showMinorGrid(showMinorGridAction.isChecked());

    plot->showLegend(showLegendAction.isChecked());

    plot->showDemoIndicator(isDemoShown);

    plot->setAxis(_autoScaled, _yMin, _yMax);

    return plot;

}

void PlotManager::addCurve(QString title, FrameBuffer* buffer)

{

    auto curve = new QwtPlotCurve(title);

    curve->setSamples(new FrameBufferSeries(buffer));

    _addCurve(curve);

}

void PlotManager::addCurve(QString title, QVector<QPointF> data)

{

    auto curve = new QwtPlotCurve(title);

    curve->setSamples(data);

    _addCurve(curve);

}

void PlotManager::_addCurve(QwtPlotCurve* curve)

{

    // store and init the curve

    curves.append(curve);

    unsigned index = curves.size()-1;

    // create the plot for the curve if we are on multi display

    Plot* plot;

    if (isMulti)

    {

        // create a new plot widget

        plot = addPlotWidget();

    }

    else

    {

        plot = plotWidgets[0];

    }

    // show the curve

    curve->attach(plot);

    plot->replot();

}

void PlotManager::removeCurves(unsigned number)

{

    for (unsigned i = 0; i < number; i++)

    {

        if (!curves.isEmpty())

        {

            delete curves.takeLast();

            if (isMulti) // delete corresponding widget as well

            {

                delete plotWidgets.takeLast();

            }

        }

    }

}

unsigned PlotManager::numOfCurves()

{

    return curves.size();

}

void PlotManager::setTitle(unsigned index, QString title)

{

    curves[index]->setTitle(title);

    plotWidget(index)->replot();

}

Plot* PlotManager::plotWidget(unsigned curveIndex)

{

    if (isMulti)

    {

        return plotWidgets[curveIndex];

    }

    else

    {

        return plotWidgets[0];

    }

}

void PlotManager::replot()

{

    for (auto plot : plotWidgets)

    {

        plot->replot();

    }

}

QList<QAction*> PlotManager::menuActions()

{

    QList<QAction*> actions;

    actions << &showGridAction;

    actions << &showMinorGridAction;

    actions << &unzoomAction;

    actions << &darkBackgroundAction;

    actions << &showLegendAction;

    actions << &showMultiAction;

    return actions;

}

void PlotManager::showGrid(bool show)

{

    for (auto plot : plotWidgets)

    {

        plot->showGrid(show);

    }

}

void PlotManager::showMinorGrid(bool show)

{

    for (auto plot : plotWidgets)

    {

        plot->showMinorGrid(show);

    }

}

void PlotManager::showLegend(bool show)

{

    for (auto plot : plotWidgets)

  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 <stddef.h>

#include <QSaveFile>

#include <QTextStream>

#include "snapshot.h"

#include "snapshotview.h"

Snapshot::Snapshot(QMainWindow* parent, QString name, ChannelInfoModel infoModel) :

    QObject(parent),

    cInfoModel(infoModel),

    _showAction(this),

    _deleteAction("&Delete", this)

{

    _name = name;

    _saved = false;

    view = NULL;

    mainWindow = parent;

    _showAction.setText(displayName());

    connect(&_showAction, &QAction::triggered, this, &Snapshot::show);

    _deleteAction.setToolTip(QString("Delete ") + _name);

    connect(&_deleteAction, &QAction::triggered, this, &Snapshot::onDeleteTriggered);

}

Snapshot::~Snapshot()

{

    if (view != NULL)

    {

        delete view;

    }

}

QAction* Snapshot::showAction()

{

    return &_showAction;

}

QAction* Snapshot::deleteAction()

{

    return &_deleteAction;

}

void Snapshot::show()

{

    if (view == NULL)

    {

        view = new SnapshotView(mainWindow, this);

        connect(view, &SnapshotView::closed, this, &Snapshot::viewClosed);

    }

    view->show();

    view->activateWindow();

    view->raise();

}

void Snapshot::viewClosed()

{

    view->deleteLater();

    view = NULL;

}

void Snapshot::onDeleteTriggered()

{

    emit deleteRequested(this);

}

QString Snapshot::name()

{

    return _name;

}

QString Snapshot::displayName()

{

    if (_saved)

    {

        return name();

    }

    else

    {

        return name() + "*";

    }

}

void Snapshot::setName(QString name)

{

    _name = name;

    _showAction.setText(_name);

    emit nameChanged(this);

}

QString Snapshot::channelName(unsigned channel)

{

    return cInfoModel.data(cInfoModel.index(channel, ChannelInfoModel::COLUMN_NAME),

                           Qt::DisplayRole).toString();

}

void Snapshot::save(QString fileName)

{

    // TODO: remove code duplication (MainWindow::onExportCsv)

    QSaveFile file(fileName);

    if (file.open(QIODevice::WriteOnly | QIODevice::Text))

    {

        QTextStream fileStream(&file);

        unsigned numOfChannels = data.size();

        unsigned numOfSamples = data[0].size();

        // print header

        for (unsigned int ci = 0; ci < numOfChannels; ci++)

        {

            fileStream << channelName(ci);

            if (ci != numOfChannels-1) fileStream << ",";

        }

        fileStream << '\n';

        // print rows

        for (unsigned int i = 0; i < numOfSamples; i++)

        {

            for (unsigned int ci = 0; ci < numOfChannels; ci++)

            {

                fileStream << data[ci][i].y();

                if (ci != numOfChannels-1) fileStream << ",";

            }

            fileStream << '\n';

        }

        if (!file.commit())

        {

            qCritical() << "File save error during snapshot save: " << file.error();

        }

        else

        {

            _saved = true;

            _showAction.setText(displayName());

        }

    }

    else

    {

        qCritical() << "File open error during snapshot save: " << file.error();

    }

}

bool Snapshot::isSaved()

{

    return _saved;

}

/*

  Copyright © 2015 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 SNAPSHOT_H

#define SNAPSHOT_H

#include <QObject>

#include <QMainWindow>

#include <QAction>

#include <QVector>

#include <QString>

#include <QStringList>

#include "channelinfomodel.h"

class SnapshotView;

class Snapshot : public QObject

{

    Q_OBJECT

public:

    Snapshot(QMainWindow* parent, QString name, ChannelInfoModel infoModel);

    ~Snapshot();

    QVector<QVector<QPointF>> data;

    QAction* showAction();

    QAction* deleteAction();

    QString name();

    QString displayName(); ///< `name()` plus '*' if snapshot is not saved

    void setName(QString name);

    QString channelName(unsigned channel);

    void save(QString fileName); ///< save snapshot data as CSV

    bool isSaved(); ///< snapshot has been saved at least once

signals:

    void deleteRequested(Snapshot*);

    void nameChanged(Snapshot*);

private:

    QString _name;

    ChannelInfoModel cInfoModel;

    QAction _showAction;

    QAction _deleteAction;

    QMainWindow* mainWindow;

    SnapshotView* view;

    bool _saved;

private slots:

    void show();

    void viewClosed();

    void onDeleteTriggered();

};

#endif /* SNAPSHOT_H */

/*

  Copyright © 2015 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 "snapshotview.h"

#include "ui_snapshotview.h"

SnapshotView::SnapshotView(QWidget *parent, Snapshot* snapshot) :

    QMainWindow(parent),

    ui(new Ui::SnapshotView),

    renameDialog(this)

{

    _snapshot = snapshot;

    ui->setupUi(this);

    ui->menuSnapshot->insertAction(ui->actionClose, snapshot->deleteAction());

    this->setWindowTitle(snapshot->displayName());

    // initialize curves

    unsigned numOfChannels = snapshot->data.size();

    for (unsigned ci = 0; ci < numOfChannels; ci++)

    {

        plotMan->addCurve(snapshot->channelName(ci), snapshot->data[ci]);

    }

    renameDialog.setWindowTitle("Rename Snapshot");

    renameDialog.setLabelText("Enter new name:");

    connect(ui->actionRename, &QAction::triggered,

            this, &SnapshotView::showRenameDialog);

    connect(ui->actionExport, &QAction::triggered,

            this, &SnapshotView::save);

    // add 'View' menu items

    for (auto a : plotMan->menuActions())

    {

        ui->menuView->addAction(a);

    }

}

SnapshotView::~SnapshotView()

{

    for (auto curve : curves)

    {

        delete curve;

    }

    delete ui;

}

void SnapshotView::closeEvent(QCloseEvent *event)

{

    QMainWindow::closeEvent(event);

    emit closed();

}

void SnapshotView::showRenameDialog()

{

    renameDialog.setTextValue(_snapshot->name());

    renameDialog.open(this, SLOT(renameSnapshot(QString)));

}

void SnapshotView::renameSnapshot(QString name)

{

    _snapshot->setName(name);

    setWindowTitle(_snapshot->displayName());

}

void SnapshotView::save()

{

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

    if (fileName.isNull()) return; // user canceled

    _snapshot->save(fileName);

    setWindowTitle(_snapshot->displayName());

}