peak_common_channel.hpp

Go to the documentation of this file.

 
#pragma once
 
#include <peak_common/exceptions/peak_common_exceptions.hpp>
#include <peak_common_c/detail/peak_common_defines.h>
#include <ostream>
#include <string>
 
namespace peak
{
namespace common
{

enum class Channel
{
    Intensity, 
    Red,       
    Green,     
    Blue,      
    Alpha,     
    X,         
    Y,         
    Z,         
    Bayer,     
    ChromaU,   
    ChromaV    
};

PEAK_COMMON_NO_DISCARD inline std::string ToString(Channel channel)
{
    switch (channel)
    {
    case Channel::Intensity:
        return "Intensity";
    case Channel::Red:
        return "Red";
    case Channel::Green:
        return "Green";
    case Channel::Blue:
        return "Blue";
    case Channel::Alpha:
        return "Alpha";
    case Channel::X:
        return "X";
    case Channel::Y:
        return "Y";
    case Channel::Z:
        return "Z";
    case Channel::Bayer:
        return "Bayer";
    case Channel::ChromaU:
        return "ChromaU";
    case Channel::ChromaV:
        return "ChromaV";
    }
 
    throw InvalidParameterException("The specified channel " + std::to_string(static_cast<int>(channel)) + " is unknown.");
}

inline std::ostream& operator<<(std::ostream& os, const Channel channel)
{
    return os << ToString(channel);
}
 
namespace detail
{

PEAK_COMMON_NO_DISCARD inline Channel ToChannel(const std::string& channel)
{
    if (channel == "Intensity")
    {
        return Channel::Intensity;
    }
    if (channel == "Red")
    {
        return Channel::Red;
    }
    if (channel == "Green")
    {
        return Channel::Green;
    }
    if (channel == "Blue")
    {
        return Channel::Blue;
    }
    if (channel == "Alpha")
    {
        return Channel::Alpha;
    }
    if (channel == "X")
    {
        return Channel::X;
    }
    if (channel == "Y")
    {
        return Channel::Y;
    }
    if (channel == "Z")
    {
        return Channel::Z;
    }
    if (channel == "Bayer")
    {
        return Channel::Bayer;
    }
    if (channel == "ChromaU")
    {
        return Channel::ChromaU;
    }
    if (channel == "ChromaV")
    {
        return Channel::ChromaV;
    }
 
    throw InvalidParameterException("The specified channel '" + channel + "' is unknown.");
}
} // namespace detail
 
} // namespace common 
} // namespace peak