#

# Copyright © 2019 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/>.

#

cmake_minimum_required(VERSION 3.2.2)

project(serialplot)

set(PROGRAM_NAME ${CMAKE_PROJECT_NAME} CACHE STRING "Output program name")

set(PROGRAM_DISPLAY_NAME "SerialPlot" CACHE STRING "Display name (menus etc) of the program")

# Find includes in corresponding build directories

set(CMAKE_INCLUDE_CURRENT_DIR ON)

# Instruct CMake to run moc automatically when needed.

set(CMAKE_AUTOMOC ON)

# add local path for cmake modules

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules/")

# Find the QtWidgets library

find_package(Qt5Widgets)

# If set, cmake will download Qwt over SVN, build and use it as a static library.

set(BUILD_QWT true CACHE BOOL "Download and build Qwt automatically.")

if (BUILD_QWT)

  include(BuildQwt)

else (BUILD_QWT)

    find_package(Qwt 6.1 REQUIRED)

endif (BUILD_QWT)

# includes

include_directories("./src"

  ${QWT_INCLUDE_DIR}

  )

# wrap UI and resource files

qt5_wrap_ui(UI_FILES

  src/mainwindow.ui

  src/portcontrol.ui

  src/about_dialog.ui

  src/snapshotview.ui

  src/commandpanel.ui

  src/commandwidget.ui

  src/dataformatpanel.ui

  src/plotcontrolpanel.ui

  src/recordpanel.ui

  src/numberformatbox.ui

  src/endiannessbox.ui

  src/binarystreamreadersettings.ui

  src/asciireadersettings.ui

  src/framedreadersettings.ui

  src/demoreadersettings.ui

  src/updatecheckdialog.ui

  src/datatextview.ui

  )

if (WIN32)

  qt5_add_resources(RES_FILES misc/icons.qrc misc/winicons.qrc)

else (WIN32)

  qt5_add_resources(RES_FILES misc/icons.qrc)

endif (WIN32)

add_executable(${PROGRAM_NAME} WIN32

  src/main.cpp

  src/mainwindow.cpp

  src/portcontrol.cpp

  src/plot.cpp

  src/zoomer.cpp

  src/scrollzoomer.cpp

  src/scrollbar.cpp

  src/hidabletabwidget.cpp

  src/scalepicker.cpp

  src/scalezoomer.cpp

  src/portlist.cpp

  src/snapshot.cpp

  src/snapshotview.cpp

  src/snapshotmanager.cpp

  src/plotsnapshotoverlay.cpp

  src/commandpanel.cpp

  src/commandwidget.cpp

  src/commandedit.cpp

  src/dataformatpanel.cpp

  src/plotcontrolpanel.cpp

  src/recordpanel.cpp

  src/datarecorder.cpp

  src/tooltipfilter.cpp

  src/sneakylineedit.cpp

  src/stream.cpp

  src/streamchannel.cpp

  src/channelinfomodel.cpp

  src/ringbuffer.cpp

  src/ringbuffer.cpp

  src/indexbuffer.cpp

  src/linindexbuffer.cpp

  src/readonlybuffer.cpp

  src/framebufferseries.cpp

  src/numberformatbox.cpp

  src/endiannessbox.cpp

  src/abstractreader.cpp

  src/binarystreamreader.cpp

  src/binarystreamreadersettings.cpp

  src/asciireader.cpp

  src/asciireadersettings.cpp

  src/demoreader.cpp

  src/demoreadersettings.cpp

  src/framedreader.cpp

  src/framedreadersettings.cpp

  src/plotmanager.cpp

  src/plotmenu.cpp

  src/barplot.cpp

  src/barchart.cpp

  src/barscaledraw.cpp

  src/numberformat.cpp

  src/updatechecker.cpp

  src/versionnumber.cpp

  src/updatecheckdialog.cpp

  src/samplepack.cpp

  src/source.cpp

  src/sink.cpp

  src/samplecounter.cpp

  src/ledwidget.cpp

  src/datatextview.cpp

  misc/windows_icon.rc

  ${UI_FILES}

  ${RES_FILES}

  )

# Use the Widgets module from Qt 5.

target_link_libraries(${PROGRAM_NAME}

  ${QWT_LIBRARY}

  )

qt5_use_modules(${PROGRAM_NAME} Widgets SerialPort Network)

if (BUILD_QWT)

  add_dependencies(${PROGRAM_NAME} QWT)

endif ()

# set compiler flags

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")

# Enable C++11 support, fail if not supported

include(CheckCXXCompilerFlag)

CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)

CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)

if(COMPILER_SUPPORTS_CXX11)

  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

elseif(COMPILER_SUPPORTS_CXX0X)

  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")

else()

  message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")

endif()

# default version

set(VERSION_STRING "0.10.0")

set(VERSION_REVISION "0")

# get revision number from mercurial and parse version string

include(GetVersion)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVERSION_STRING=\\\"${VERSION_STRING}\\\" ")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVERSION_MAJOR=${VERSION_MAJOR} ")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVERSION_MINOR=${VERSION_MINOR} ")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVERSION_PATCH=${VERSION_PATCH} ")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVERSION_REVISION=\\\"${VERSION_REVISION}\\\" ")

# add make run target

add_custom_target(run

    COMMAND ${PROGRAM_NAME}

    DEPENDS ${PROGRAM_NAME}

    WORKING_DIRECTORY ${CMAKE_PROJECT_DIR}

)

# installing

install(TARGETS ${PROGRAM_NAME} DESTINATION bin)

# for windows put libraries to install directory

if (WIN32)

  file(GLOB WINDOWS_INSTALL_LIBRARIES

    "${CMAKE_BINARY_DIR}/windows_install_libraries/*.*")

  install(FILES ${WINDOWS_INSTALL_LIBRARIES} DESTINATION bin)

endif (WIN32)

# prepare menu item and icon

configure_file("${CMAKE_CURRENT_SOURCE_DIR}/misc/program_name.desktop.in"

  "${CMAKE_BINARY_DIR}/${PROGRAM_NAME}.desktop")

configure_file("${CMAKE_CURRENT_SOURCE_DIR}/misc/program_name.png"

  "${CMAKE_BINARY_DIR}/${PROGRAM_NAME}.png" COPYONLY)

set(DESKTOP_FILE ${CMAKE_BINARY_DIR}/${PROGRAM_NAME}.desktop)

set(ICON_FILE ${CMAKE_BINARY_DIR}/${PROGRAM_NAME}.png)

# install menu item and icon

if (UNIX)

  install(FILES ${DESKTOP_FILE} DESTINATION share/applications/)

  install(FILES ${ICON_FILE} DESTINATION share/icons/hicolor/256x256/apps/)

endif (UNIX)

# uninstalling

configure_file(

  "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"

  "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"

  @ONLY)

if (UNIX)

  add_custom_target(uninstall

    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)

endif (UNIX)

# testing

set(ENABLE_TESTS false CACHE BOOL "Build tests.")

if (ENABLE_TESTS)

  enable_testing()

  add_subdirectory(tests)

endif ()

# packaging

include(BuildLinuxAppImage)

if (UNIX)

  set(CPACK_GENERATOR "DEB")

elseif (WIN32)

  set(CPACK_GENERATOR "NSIS")

endif (UNIX)

include(InstallRequiredSystemLibraries)

set(CPACK_PACKAGE_NAME "${PROGRAM_NAME}")

set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Small and simple software for plotting data from serial port")

set(CPACK_PACKAGE_CONTACT "Hasan Yavuz Özderya <hy@ozderya.net>")

set(CPACK_PACKAGE_VERSION_MAJOR ${VERSION_MAJOR})

set(CPACK_PACKAGE_VERSION_MINOR ${VERSION_MINOR})

set(CPACK_PACKAGE_VERSION_PATCH ${VERSION_PATCH})

set(CPACK_STRIP_FILES TRUE)

set(CPACK_DEBIAN_PACKAGE_DEPENDS "libqt5widgets5 (>= 5.2.1), libqt5svg5 (>= 5.2.1), libqt5serialport5 (>= 5.2.1), libc6 (>= 2.19)")

set(CPACK_DEBIAN_PACKAGE_DESCRIPTION "Small and simple software for plotting data from serial port

 Supports binary data formats ([u]int8, [u]int16, [u]int32, float)

 and ASCII (as CSV). Captured waveforms can be exported in CSV format.

 Can also send simple user defined commands to serial port device.")

if (NOT QWT_USE_STATIC)

  set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS}, libqwt6-qt5 (>= 6.1.1)")

endif (NOT QWT_USE_STATIC)

if (UNIX)

  set(CPACK_PACKAGE_EXECUTABLES "${PROGRAM_NAME}")

elseif (WIN32)

  set(CPACK_PACKAGE_EXECUTABLES "${PROGRAM_NAME};${PROGRAM_DISPLAY_NAME}")

  set(CPACK_PACKAGE_INSTALL_DIRECTORY "${PROGRAM_NAME}")

  set(CPACK_CREATE_DESKTOP_LINKS "${PROGRAM_NAME}")

  set(CPACK_NSIS_MODIFY_PATH "ON")

  set(CPACK_PACKAGE_ICON "${CMAKE_SOURCE_DIR}/misc/serialplot.bmp")

  string(REPLACE "/" "\\\\" CPACK_PACKAGE_ICON ${CPACK_PACKAGE_ICON})

  set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_SOURCE_DIR}/COPYING")

  set(CPACK_NSIS_MENU_LINKS

    "https://bitbucket.org/hyOzd/serialplot" "SerialPlot source code on bitbucket.org")

  set(CPACK_NSIS_ENABLE_UNINSTALL_BEFORE_INSTALL true)

endif (UNIX)

if (UNIX)

  # set debian package name

  string(TOLOWER "${CPACK_PACKAGE_NAME}" CPACK_PACKAGE_NAME_LOWERCASE)

  find_program(DPKG_PROGRAM dpkg DOC "dpkg program of Debian-based systems")

  if(DPKG_PROGRAM)

    execute_process(

      COMMAND ${DPKG_PROGRAM} --print-architecture

      OUTPUT_VARIABLE CPACK_DEBIAN_PACKAGE_ARCHITECTURE

      OUTPUT_STRIP_TRAILING_WHITESPACE)

    set(CPACK_PACKAGE_FILE_NAME

      "${CPACK_PACKAGE_NAME_LOWERCASE}_${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}_${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")

  else(DPKG_PROGRAM)

    set(CPACK_PACKAGE_FILE_NAME

      "${CPACK_PACKAGE_NAME_LOWERCASE}_${PROJECT_VERSION}-${PROJECT_VERSION_REVISION}_${CMAKE_SYSTEM_NAME}")

  endif(DPKG_PROGRAM)

endif (UNIX)

include(CPack)

/*

  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 <QApplication>

#include <QtGlobal>

#include "mainwindow.h"

#include "tooltipfilter.h"

#include "version.h"

MainWindow* pMainWindow;

void messageHandler(QtMsgType type, const QMessageLogContext &context,

                    const QString &msg)

{

    // TODO: don't call MainWindow::messageHandler if window is destroyed

    pMainWindow->messageHandler(type, context, msg);

}

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    QApplication::setApplicationVersion(VERSION_STRING);

    MainWindow w;

    pMainWindow = &w;

    qInstallMessageHandler(messageHandler);

    w.handleCommandLineOptions(a);

    ToolTipFilter ttf;

    a.installEventFilter(&ttf);

    // log application information

    qDebug() << "SerialPlot" << VERSION_STRING;

    qDebug() << "Revision" << VERSION_REVISION;

    w.show();

    return a.exec();

}

MainWindow::MainWindow(QWidget *parent) :

    QMainWindow(parent),

    ui(new Ui::MainWindow),

    aboutDialog(this),

    portControl(&serialPort),

    secondaryPlot(NULL),

    snapshotMan(this, &stream),

    commandPanel(&serialPort),

    dataFormatPanel(&serialPort),

    recordPanel(&stream),

    textView(&stream),

    updateCheckDialog(this)

{

    ui->setupUi(this);

    plotMan = new PlotManager(ui->plotArea, &plotMenu, &stream);

    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->insertTab(5, &textView, "Text View");

    ui->tabWidget->setCurrentIndex(0);

    auto tbPortControl = portControl.toolBar();

    addToolBar(tbPortControl);

    addToolBar(recordPanel.toolbar());

    ui->plotToolBar->addAction(snapshotMan.takeSnapshotAction());

    menuBar()->insertMenu(ui->menuHelp->menuAction(), snapshotMan.menu());

    menuBar()->insertMenu(ui->menuHelp->menuAction(), commandPanel.menu());

    connect(&commandPanel, &CommandPanel::focusRequested, [this]()

            {

                this->ui->tabWidget->setCurrentWidget(&commandPanel);

                this->ui->tabWidget->showTabs();

            });

    tbPortControl->setObjectName("tbPortControl");

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

    setupAboutDialog();

    // init view menu

    ui->menuBar->insertMenu(ui->menuSecondary->menuAction(), &plotMenu);

    plotMenu.addSeparator();

    QMenu* tbMenu = plotMenu.addMenu("Toolbars");

    tbMenu->addAction(ui->plotToolBar->toggleViewAction());

    tbMenu->addAction(portControl.toolBar()->toggleViewAction());

    // init secondary plot menu

    auto group = new QActionGroup(this);

    group->addAction(ui->actionVertical);

    group->addAction(ui->actionHorizontal);

    // init UI signals

    // Secondary plot menu signals

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

            this, &MainWindow::showBarPlot);

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

            [this](bool checked)

            {

                if (checked) ui->splitter->setOrientation(Qt::Vertical);

            });

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

            [this](bool checked)

            {

                if (checked) ui->splitter->setOrientation(Qt::Horizontal);

            });

    // Help menu signals

    QObject::connect(ui->actionHelpAbout, &QAction::triggered,

              &aboutDialog, &QWidget::show);

    QObject::connect(ui->actionCheckUpdate, &QAction::triggered,

              &updateCheckDialog, &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);

    // plot control signals

    connect(&plotControlPanel, &PlotControlPanel::numOfSamplesChanged,

            this, &MainWindow::onNumOfSamplesChanged);

    connect(&plotControlPanel, &PlotControlPanel::numOfSamplesChanged,

            plotMan, &PlotManager::setNumOfSamples);

    connect(&plotControlPanel, &PlotControlPanel::yScaleChanged,

            plotMan, &PlotManager::setYAxis);

    connect(&plotControlPanel, &PlotControlPanel::xScaleChanged,

            &stream, &Stream::setXAxis);

    connect(&plotControlPanel, &PlotControlPanel::xScaleChanged,

            plotMan, &PlotManager::setXAxis);

    connect(&plotControlPanel, &PlotControlPanel::plotWidthChanged,

            plotMan, &PlotManager::setPlotWidth);

    // plot toolbar signals

    QObject::connect(ui->actionClear, SIGNAL(triggered(bool)),

                     this, SLOT(clearPlot()));

    QObject::connect(snapshotMan.takeSnapshotAction(), &QAction::triggered,

                     plotMan, &PlotManager::flashSnapshotOverlay);

    QObject::connect(ui->actionPause, &QAction::triggered,

                     &stream, &Stream::pause);

    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);

                         }

                     });

    connect(&serialPort, &QIODevice::aboutToClose,

            &recordPanel, &RecordPanel::onPortClose);

    // init plot

    numOfSamples = plotControlPanel.numOfSamples();

    stream.setNumSamples(numOfSamples);

    plotControlPanel.setChannelInfoModel(stream.infoModel());

    // init scales

    stream.setXAxis(plotControlPanel.xAxisAsIndex(),

                    plotControlPanel.xMin(), plotControlPanel.xMax());

    plotMan->setYAxis(plotControlPanel.autoScale(),

                      plotControlPanel.yMin(), plotControlPanel.yMax());

    plotMan->setXAxis(plotControlPanel.xAxisAsIndex(),

                      plotControlPanel.xMin(), plotControlPanel.xMax());

    plotMan->setNumOfSamples(numOfSamples);

    plotMan->setPlotWidth(plotControlPanel.plotWidth());

    // Init sps (sample per second) counter

    spsLabel.setText("0sps");

    spsLabel.setToolTip("samples per second (per channel)");

    ui->statusBar->addPermanentWidget(&spsLabel);

    connect(&sampleCounter, &SampleCounter::spsChanged,

            this, &MainWindow::onSpsChanged);

    // init demo

    QObject::connect(ui->actionDemoMode, &QAction::toggled,

                     this, &MainWindow::enableDemo);

    QObject::connect(ui->actionDemoMode, &QAction::toggled,

                     plotMan, &PlotManager::showDemoIndicator);

    // init stream connections

    connect(&dataFormatPanel, &DataFormatPanel::sourceChanged,

            this, &MainWindow::onSourceChanged);

    onSourceChanged(dataFormatPanel.activeSource());

    // load default settings

    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);

                this->ui->tabWidget->showTabs();

            });

}

MainWindow::~MainWindow()

{

    if (serialPort.isOpen())

    {

        serialPort.close();

    }

    delete plotMan;

    delete ui;

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

}

void MainWindow::closeEvent(QCloseEvent * event)

{

    // save snapshots

    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::Cancel);

        if (clickedButton == QMessageBox::Cancel)

        {

            event->ignore();

            return;

        }

    }

    // save settings

    saveAllSettings(&settings);

    settings.sync();

    if (settings.status() != QSettings::NoError)

    {

        QString errorText;

        if (settings.status() == QSettings::AccessError)

        {

            QString file = settings.fileName();

            errorText = QString("Serialplot cannot save settings due to access error. \

This happens if you have run serialplot as root (with sudo for ex.) previously. \

Try fixing the permissions of file: %1, or just delete it.").arg(file);

        }

        else

        {

            errorText = QString("Serialplot cannot save settings due to unknown error: %1").\

                arg(settings.status());

        }

        auto button = QMessageBox::critical(

            NULL,

            "Failed to save settings!", errorText,

            QMessageBox::Cancel | QMessageBox::Ok);

        if (button == 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::onSourceChanged(Source* source)

{

    source->connectSink(&stream);

    source->connectSink(&sampleCounter);

}

void MainWindow::clearPlot()

{

    stream.clear();

    plotMan->replot();

}

void MainWindow::onNumOfSamplesChanged(int value)

{

    numOfSamples = value;

    stream.setNumSamples(value);

    plotMan->replot();

}

void MainWindow::onSpsChanged(float sps)

{

    int precision = sps < 1. ? 3 : 0;

    spsLabel.setText(QString::number(sps, 'f', precision) + "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::showSecondary(QWidget* wid)

{

    if (secondaryPlot != NULL)

    {

        secondaryPlot->deleteLater();

    }

    secondaryPlot = wid;

    ui->splitter->addWidget(wid);

    ui->splitter->setStretchFactor(0, 1);

    ui->splitter->setStretchFactor(1, 0);

}

void MainWindow::hideSecondary()

{

    if (secondaryPlot == NULL)

    {

        qFatal("Secondary plot doesn't exist!");

    }

    secondaryPlot->deleteLater();

    secondaryPlot = NULL;

}

void MainWindow::showBarPlot(bool show)

{

    if (show)

    {

        auto plot = new BarPlot(&stream, &plotMenu);

        plot->setYAxis(plotControlPanel.autoScale(),

                       plotControlPanel.yMin(),

                       plotControlPanel.yMax());

        connect(&plotControlPanel, &PlotControlPanel::yScaleChanged,

                plot, &BarPlot::setYAxis);

        showSecondary(plot);

    }

    else

    {

        hideSecondary();

    }

}

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;

    }

}

PlotViewSettings MainWindow::viewSettings() const

{

    return plotMenu.viewSettings();

}

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: