/*
 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 PLOTCONTROLPANEL_H
#define PLOTCONTROLPANEL_H

#include <QWidget>
#include <QSettings>
#include <QAction>
#include <QMenu>

#include "channelinfomodel.h"

namespace Ui {
class PlotControlPanel;
}

class PlotControlPanel : public QWidget
{
 Q_OBJECT

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

 unsigned numOfSamples();
 bool autoScale() const;
 double yMax() const;
 double yMin() const;
 bool xAxisAsIndex() const;
 double xMax() const;
 double xMin() const;
 /// Returns the plot width adjusted for x axis scaling.
 double plotWidth() const;

 void setChannelInfoModel(ChannelInfoModel* model);

 /// Stores plot settings into a `QSettings`
 void saveSettings(QSettings* settings);
 /// Loads plot settings from a `QSettings`.
 void loadSettings(QSettings* settings);

signals:
 void numOfSamplesChanged(int value);
 void yScaleChanged(bool autoScaled, double yMin = 0, double yMax = 1);
 void xScaleChanged(bool asIndex, double xMin = 0, double xMax = 1);
 void plotWidthChanged(double width);

private:
 Ui::PlotControlPanel *ui;

 /// Holds 'number of samples' after the confirmation
 unsigned _numOfSamples;
 /// User can disable this setting in the checkbox
 bool warnNumOfSamples;

 QAction resetAct, resetNamesAct, resetColorsAct, showAllAct;
 QMenu resetMenu;

 /// Show a confirmation dialog before setting #samples to a big value
 bool askNSConfirmation(int value);

private slots:
 void onNumOfSamples(int value);
 void onAutoScaleChecked(bool checked);
 void onYScaleChanged();
 void onRangeSelected();
 void onIndexChecked(bool checked);
 void onXScaleChanged();
 void onPlotWidthChanged();
};

#endif // PLOTCONTROLPANEL_H