pixelaspect.h

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#pragma once
 
 
#include <promeki/config.h>
#if PROMEKI_ENABLE_CORE
#include <promeki/datatype.h>
#include <promeki/namespace.h>
#include <promeki/rational.h>
#include <promeki/result.h>
#include <promeki/string.h>
 
PROMEKI_NAMESPACE_BEGIN
 
class DataStream;
 
class PixelAspect {
        public:
                PROMEKI_DATATYPE(PixelAspect, DataTypePixelAspect, 1)
 
                
                Error writeToStream(DataStream &s) const;
                template <uint32_t V> static Result<PixelAspect> readFromStream(DataStream &s);
 
                using RationalType = Rational<unsigned int>;
 
                PixelAspect() : _par(1, 1) {}
 
                PixelAspect(unsigned int w, unsigned int h) : _par(w, h) {}
 
                explicit PixelAspect(const RationalType &r) : _par(r) {}
 
                bool isValid() const { return _par.isValid() && _par.numerator() > 0 && _par.denominator() > 0; }
 
                bool isSquare() const { return isValid() && _par.numerator() == _par.denominator(); }
 
                unsigned int width() const { return _par.numerator(); }
 
                unsigned int height() const { return _par.denominator(); }
 
                const RationalType &rational() const { return _par; }
 
                double toDouble() const { return _par.toDouble(); }
 
                String toString() const;
 
                static Result<PixelAspect> fromString(const String &s);
 
                bool operator==(const PixelAspect &o) const { return _par == o._par; }
                bool operator!=(const PixelAspect &o) const { return _par != o._par; }
 
        private:
                RationalType _par;
};
 
PROMEKI_NAMESPACE_END
 
#endif // PROMEKI_ENABLE_CORE