1 files changed, 106 insertions, 0 deletions
diff --git a/spline/spline-widget.hpp b/spline/spline-widget.hpp
new file mode 100644
index 00000000..4d5a7680
--- /dev/null
+++ b/spline/spline-widget.hpp
@@ -0,0 +1,106 @@
+/* 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;
+};