floatautos.h

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#ifndef FLOATAUTOS_H
#define FLOATAUTOS_H

#include "autos.h"
#include "edl.inc"
#include "guicast.h"
#include "filexml.inc"
#include "floatauto.inc"

class FloatAutos : public Autos
{
public:
        FloatAutos(EDL *edl, 
                Track *track,
// Value for default auto
                float default_);
        ~FloatAutos();


        int draw_joining_line(BC_SubWindow *canvas, int vertical, int center_pixel, int x1, int y1, int x2, int y2);
        int get_testy(float slope, int cursor_x, int ax, int ay);
// Return 1 if the automation is constant.
// constant - set to the value if it is constant
        int automation_is_constant(int64_t start, 
                int64_t length, 
                int direction,
                double &constant);
        double get_automation_constant(int64_t start, int64_t end);
// Get value at a specific point.  This needs previous and next stores
// because it is used for every pixel in the drawing function.
        float get_value(int64_t position, 
                int direction,
                FloatAuto* &previous,
                FloatAuto* &next);
        void get_fade_automation(double &slope,
                double &intercept,
                int64_t input_position,
                int64_t &slope_len,
                int direction);
        void get_extents(float *min, 
                float *max,
                int *coords_undefined,
                int64_t unit_start,
                int64_t unit_end);

        void dump();
        Auto* add_auto(int64_t position, float value);
        Auto* append_auto();
        Auto* new_auto();
        float default_;
};


#endif

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