1 files changed, 75 insertions, 0 deletions
diff --git a/spline-widget/qfunctionconfigurator.h b/spline-widget/qfunctionconfigurator.h
new file mode 100644
index 00000000..baea9e34
--- /dev/null
+++ b/spline-widget/qfunctionconfigurator.h
@@ -0,0 +1,75 @@
+/* Copyright (c) 2012-2015 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 "spline-widget/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) override;
+    void mousePressEvent(QMouseEvent *e) override;
+    void mouseMoveEvent(QMouseEvent *e) override;
+    void mouseReleaseEvent(QMouseEvent *e) override;
+private:
+    void drawBackground();
+    void drawFunction();
+    void drawPoint(QPainter *painter, const QPointF &pt, QColor colBG, QColor border = QColor(50, 100, 120, 200));
+    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;
+};