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/* Copyright (c) 2012-2016, Stanislaw Halik <sthalik@misaki.pl>
* Permission to use, copy, modify, and/or distribute this
* software for any purpose with or without fee is hereby granted,
* provided that the above copyright notice and this permission
* notice appear in all copies.
*/
#pragma once
#include <QtGlobal>
#include <QList>
#include <QPointF>
#include <QString>
#include <QSettings>
#include <QMutex>
#include <vector>
#include <limits>
#include "compat/qcopyable-mutex.hpp"
#ifdef BUILD_spline_widget
# define SPLINE_WIDGET_EXPORT Q_DECL_EXPORT
#else
# define SPLINE_WIDGET_EXPORT Q_DECL_IMPORT
#endif
class SPLINE_WIDGET_EXPORT spline
{
private:
int precision() const;
void reload();
float getValueInternal(int x);
struct State
{
QList<QPointF> input;
std::vector<float> data;
bool operator==(const State& s) const;
};
MyMutex _mutex;
QPointF last_input_value;
State cur, saved;
qreal max_x, max_y;
volatile bool activep;
static constexpr int value_count = 10000;
public:
qreal maxInput() const;
qreal maxOutput() const;
spline();
spline(qreal maxx, qreal maxy);
float getValue(float x);
bool getLastPoint(QPointF& point);
void removePoint(int i);
void removeAllPoints();
void addPoint(QPointF pt);
void movePoint(int idx, QPointF pt);
const QList<QPointF> getPoints();
void setMaxInput(qreal MaxInput);
void setMaxOutput(qreal MaxOutput);
void saveSettings(QSettings& settings, const QString& title);
void loadSettings(QSettings& settings, const QString& title);
void invalidate_unsaved_settings();
void setTrackingActive(bool blnActive);
};
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