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#ifndef _COLOR_RAMP_H
#define _COLOR_RAMP_H
#include <QtCore/qglobal.h>
#ifdef scene_color_ramp_EXPORTS
# define SCENE_COLOR_RAMP_EXPORT Q_DECL_EXPORT
#else
# define SCENE_COLOR_RAMP_EXPORT Q_DECL_IMPORT
#endif
#include <list>
class SCENE_COLOR_RAMP_EXPORT Color_component
{
typedef std::list<std::pair<double,double> > Values;
public:
Color_component();
Color_component(const double c0, const double c1);
~Color_component() {}
double interpolate(const double v) const;
void add(const double v, double color);
void rebuild(const double c0, const double c1);
void print() const;
private:
inline Values::const_iterator next_it(const double v) const;
inline Values::iterator next_it(const double v);
private:
Values values_;
};
class SCENE_COLOR_RAMP_EXPORT Color_ramp
{
public :
Color_ramp();
Color_ramp(const double r0, const double r1, const double g0, const double g1,
const double b0, const double b1);
public :
inline double r(double v) const;
inline double g(double v) const;
inline double b(double v) const;
void build_red();
void build_blue();
void build_thermal();
void build_rainbow();
void print() const;
private :
Color_component r_;
Color_component g_;
Color_component b_;
};
inline
Color_component::Values::const_iterator
Color_component::
next_it(const double v) const
{
Values::const_iterator next = values_.begin();
while ( next != values_.end() && v >= next->first ) { ++next; }
return next;
}
inline
Color_component::Values::iterator
Color_component::
next_it(const double v)
{
Values::iterator next = values_.begin();
while ( next != values_.end() && v >= next->first ) { ++next; }
return next;
}
inline
double
Color_ramp::r(double v) const
{ return r_.interpolate(v); }
inline
double
Color_ramp::g(double v) const
{ return g_.interpolate(v); }
inline
double
Color_ramp::b(double v) const
{ return b_.interpolate(v); }
#endif // _COLOR_RAMP_H
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