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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.
*/
// Adapted to FaceTrackNoIR by Wim Vriend.
#pragma once
#include "spline.hpp"
#include "api/plugin-api.hpp"
#include "options/options.hpp"
using namespace options;
#include "export.hpp"
#include <QWidget>
#include <QRect>
#include <QPoint>
#include <QPointF>
#include <QToolTip>
#include <QShowEvent>
#include <QFocusEvent>
#include <QMetaObject>
#include <QDebug>
class OPENTRACK_SPLINE_EXPORT spline_widget final : public QWidget
{
Q_OBJECT
Q_PROPERTY(QColor colorBezier READ colorBezier WRITE setColorBezier)
Q_PROPERTY(bool is_preview_only READ is_preview_only WRITE set_preview_only)
Q_PROPERTY(int x_step READ x_step WRITE set_x_step)
Q_PROPERTY(int y_step READ y_step WRITE set_y_step)
using points_t = spline::points_t;
public:
spline_widget(QWidget *parent = 0);
~spline_widget();
spline* config();
void setConfig(spline* spl);
QColor colorBezier() const;
void setColorBezier(QColor color);
void force_redraw();
void set_preview_only(bool val);
bool is_preview_only() const;
double x_step() { return _x_step; }
double y_step() { return _y_step; }
void set_x_step(double val) { _x_step = val; }
void set_y_step(double val) { _y_step = val; }
void set_snap(double x, double y) { snap_x = x; snap_y = y; }
void get_snap(double& x, double& y) const { x = snap_x; y = snap_y; }
public slots:
void reload_spline();
protected slots:
void paintEvent(QPaintEvent *e) override;
void mousePressEvent(QMouseEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
void mouseReleaseEvent(QMouseEvent *e) override;
private:
int get_closeness_limit();
void show_tooltip(const QPoint& pos, const QPointF& value = QPointF(0, 0));
bool is_in_bounds(const QPoint& pos) const;
void drawBackground();
void drawFunction();
void drawPoint(QPainter& painter, const QPointF& pt, const QColor& colBG, const QColor& border = QColor(50, 100, 120, 200));
void drawLine(QPainter& painter, const QPoint& start, const QPoint& end, const QPen& pen);
bool point_within_pixel(const QPointF& pt, const QPoint& pixel);
void focusOutEvent(QFocusEvent*e) override;
void resizeEvent(QResizeEvent *) override;
bool is_on_pt(const QPoint& pos, int* pt = nullptr);
void update_range();
QPointF pixel_coord_to_point(const QPoint& point);
QPointF point_to_pixel_(const QPointF& point);
QPoint point_to_pixel(const QPointF& point);
QPointF c;
spline* _config;
QPixmap _background;
QPixmap _function;
QColor spline_color;
// bounds of the rectangle user can interact with
QRect pixel_bounds;
QMetaObject::Connection connection;
double snap_x, snap_y;
double _x_step, _y_step;
int moving_control_point_idx;
bool _draw_function, _preview_only;
static constexpr int point_size = 4;
};
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