kth_channel_deref_fn Struct Template Reference

#include <image_view_factory.hpp>

List of all members.

Detailed Description

template<int K, typename SrcP>
struct boost::gil::detail::kth_channel_deref_fn< K, SrcP >

Function object that returns a grayscale reference of the K-th channel (specified as a template parameter) of a given reference. Models: PixelDereferenceAdaptorConcept.

If the input is a pixel value or constant reference, the function object is immutable. Otherwise it is mutable (and returns non-const reference to the k-th channel).

Public Types

typedef kth_channel_deref_fn
< K, const_ref_t > 
typedef pixel_value_type
< channel_t, gray_layout_t >
typedef pixel_reference_type
< channel_t, gray_layout_t,
false, false >::type 
typedef SrcP argument_type
typedef mpl::if_c< is_mutable,
ref_t, value_type >::type 
typedef reference result_type

Public Member Functions

 BOOST_STATIC_CONSTANT (bool, is_mutable=pixel_is_reference< SrcP >::value &&pixel_reference_is_mutable< SrcP >::value)
template<typename P>
 kth_channel_deref_fn (const kth_channel_deref_fn< K, P > &)
result_type operator() (argument_type srcP) const

The documentation for this struct was generated from the following file:

Generated on Sat May 2 13:50:18 2009 for Generic Image Library by  doxygen 1.5.6