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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 <QObject>
#include <QPointF>
#include <QString>
#include <QMutex>
#include <vector>
#include <limits>
#include <memory>
#include "compat/qcopyable-mutex.hpp"
#include "options/options.hpp"
using namespace options;
#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 final
{
private:
struct settings
{
bundle b;
value<QList<QPointF>> points;
settings(bundle b) :
b(b),
points(b, "points", QList<QPointF>())
{}
};
ptr<settings> s;
std::vector<float> data;
using interp_data_t = decltype(data);
static constexpr int value_count = 10000;
int precision(const QList<QPointF>& points) const;
void update_interp_data();
float getValueInternal(int x);
void add_lone_point();
static bool sort_fn(const QPointF& one, const QPointF& two);
static QPointF ensure_in_bounds(const QList<QPointF>& points, int i);
MyMutex _mutex;
QPointF last_input_value;
qreal max_x, max_y;
volatile bool activep;
template<typename t, typename u, typename w>
static inline auto clamp(t val, u min, w max) -> decltype (val * min * max)
{
if (val > max)
return max;
if (val < min)
return min;
return val;
}
public:
void reload();
void save(QSettings& s);
void save();
void set_bundle(bundle b);
qreal maxInput() const;
qreal maxOutput() const;
spline();
spline(qreal maxx, qreal maxy, const QString& name);
float getValue(double x);
bool getLastPoint(QPointF& point);
void removePoint(int i);
void removeAllPoints();
void addPoint(QPointF pt);
void movePoint(int idx, QPointF pt);
QList<QPointF> getPoints() const;
void setMaxInput(qreal MaxInput);
void setMaxOutput(qreal MaxOutput);
void setTrackingActive(bool blnActive);
bundle get_bundle() { return s->b; }
using points_t = decltype(s->points.get());
};
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