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/* Copyright (c) 2011-2014 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.
*/
// Adapted to FaceTrackNoIR by Wim Vriend.
#pragma once
#include <QWidget>
#include <QtGui>
#include <QPointF>
#include "qfunctionconfigurator/functionconfig.h"
#include "opentrack/plugin-api.hpp"
class QFunctionConfigurator : public QWidget
{
Q_OBJECT
Q_PROPERTY(QColor colorBezier READ colorBezier WRITE setColorBezier)
public:
QFunctionConfigurator(QWidget *parent = 0);
Map* config();
void setConfig(Map* config, const QString &name);
QColor colorBezier() const
{
return spline_color;
}
void setColorBezier(QColor color)
{
spline_color = color;
update();
}
void force_redraw()
{
_background = QPixmap();
update();
}
protected slots:
void paintEvent(QPaintEvent *e);
void mousePressEvent(QMouseEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
private:
void drawBackground();
void drawFunction();
void drawPoint(QPainter *painter, const QPointF &pt, QColor colBG );
void drawLine(QPainter *painter, const QPointF &start, const QPointF &end, QPen& pen);
bool point_within_pixel(const QPointF& pt, const QPointF& pixel);
protected:
void resizeEvent(QResizeEvent *) override;
private:
void update_range();
static constexpr int point_closeness_limit = 12;
QPointF pixel_coord_to_point (const QPointF& point);
QPointF point_to_pixel (const QPointF& point);
Map* _config;
// bounds of the rectangle user can interact with
QRectF pixel_bounds;
int moving_control_point_idx;
QPointF c;
QColor spline_color;
QPixmap _background;
QPixmap _function;
bool _draw_function;
};
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