/*

  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 <algorithm>

#include <QMetaEnum>

#include <QtDebug>

#include "qwt_symbol.h"

#include "plot.h"

#include "plotmanager.h"

#include "utils.h"

#include "setting_defines.h"

PlotManager::PlotManager(QWidget* plotArea, PlotMenu* menu,

                         ChannelInfoModel* infoModel, QObject* parent) :

    QObject(parent)

{

    _menu = menu;

    _plotArea = plotArea;

    _autoScaled = true;

    _yMin = 0;

    _yMax = 1;

    _xAxisAsIndex = true;

    isDemoShown = false;

    _infoModel = infoModel;

    _numOfSamples = 1;

    _plotWidth = 1;

    showSymbols = Plot::ShowSymbolsAuto;

    emptyPlot = NULL;

    // initalize layout and single widget

    isMulti = false;

    scrollArea = NULL;

    setupLayout(isMulti);

        plotWidgets[0]->showNoChannel(allhidden);

        plotWidgets[0]->setVisible(true);

    }

}

void PlotManager::setMulti(bool enabled)

{

    if (enabled == isMulti) return;

    isMulti = enabled;

    // detach all curves

    for (auto curve : curves)

    {

        curve->detach();

    }

    // remove all widgets

    while (plotWidgets.size())

    {

        delete plotWidgets.takeLast();

    }

    // setup new layout

    setupLayout(isMulti);

    if (isMulti)

    {

        // add new widgets and attach

        for (auto curve : curves)

        {

            auto plot = addPlotWidget();

            plot->setVisible(curve->isVisible());

            curve->attach(plot);

        }

    }

    else

    {

        // add a single widget

        auto plot = addPlotWidget();

        // attach all curves

        for (auto curve : curves)

        {

            curve->attach(plot);

        }

    }

    checkNoVisChannels();

}

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(_menu->darkBackgroundAction.isChecked());

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

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