/*
  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/>.
*/

#include "datatextview.h"
#include "ui_datatextview.h"

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

class DataTextViewSink : public Sink
{
public:
    DataTextViewSink(DataTextView* textView)
    {
        _textView = textView;
    }

protected:
    virtual void feedIn(const SamplePack& data) override
    {
        _textView->addData(data);
    };

private:
    DataTextView* _textView;
};

DataTextView::DataTextView(Stream* stream, QWidget *parent) :
    QWidget(parent),
    ui(new Ui::DataTextView)
{
    _stream = stream;
    ui->setupUi(this);
    sink = new DataTextViewSink(this);

    connect(ui->cbEnable, &QCheckBox::toggled, [this](bool checked)
            {
                if (checked)
                {
                    _stream->connectFollower(sink);
                }
                else
                {
                    _stream->disconnectFollower(sink);
                }
            });

    ui->textView->setMaximumBlockCount(ui->spNumLines->value());
    connect(ui->spNumLines, SELECT<int>::OVERLOAD_OF(&QSpinBox::valueChanged),
            [this](int value)
            {
                ui->textView->setMaximumBlockCount(value);
            });

    connect(ui->pbClear, &QPushButton::clicked, ui->textView, &QPlainTextEdit::clear);
}

DataTextView::~DataTextView()
{
    delete sink;
    delete ui;
}

void DataTextView::addData(const SamplePack& data)
{
    for (unsigned int i = 0; i < data.numSamples(); i++)
    {
        QString str;
        for (unsigned ci = 0; ci < data.numChannels(); ci++)
        {
            str += QString::number(data.data(ci)[i], 'f', ui->spDecimals->value());
            if (ci != data.numChannels()-1) str += " ";
        }
        ui->textView->appendPlainText(str);
    }
}

void DataTextView::saveSettings(QSettings* settings)
{
    settings->beginGroup(SettingGroup_Plot);
    settings->setValue(SG_TextView_NumLines, ui->spNumLines->value());
    settings->setValue(SG_TextView_Decimals, ui->spDecimals->value());
    settings->endGroup();
}

void DataTextView::loadSettings(QSettings* settings)
{
    settings->beginGroup(SettingGroup_Plot);
    ui->spNumLines->setValue(
        settings->value(SG_TextView_NumLines, ui->spNumLines->value()).toInt());
    ui->spDecimals->setValue(
        settings->value(SG_TextView_Decimals, ui->spDecimals->value()).toInt());
    settings->endGroup();
}