png++
0.2.9
|
The basic class template to represent image pixel data. More...
#include <pixel_buffer.hpp>
Public Types | |
typedef row | row_type |
A row of pixel data. | |
typedef row_type & | row_access |
typedef row_type const & | row_const_access |
typedef traits | row_traits |
Public Member Functions | |
basic_pixel_buffer () | |
Constructs an empty 0x0 pixel buffer object. | |
basic_pixel_buffer (uint_32 width, uint_32 height) | |
Constructs an empty pixel buffer object. | |
uint_32 | get_width () const |
uint_32 | get_height () const |
void | resize (uint_32 width, uint_32 height) |
Resizes the pixel buffer. | |
row_access | get_row (size_t index) |
Returns a reference to the row of image data at specified index. | |
row_const_access | get_row (size_t index) const |
Returns a const reference to the row of image data at specified index. | |
row_access | operator[] (size_t index) |
The non-checking version of get_row() method. | |
row_const_access | operator[] (size_t index) const |
The non-checking version of get_row() method. | |
void | put_row (size_t index, row_type const &r) |
Replaces the row at specified index. | |
pixel | get_pixel (size_t x, size_t y) const |
Returns a pixel at (x,y) position. | |
void | set_pixel (size_t x, size_t y, pixel p) |
Replaces a pixel at (x,y) position. | |
Protected Types | |
typedef std::vector< row_type > | row_vec |
Protected Attributes | |
uint_32 | m_width |
uint_32 | m_height |
row_vec | m_rows |
The basic class template to represent image pixel data.
typedef row png::basic_pixel_buffer< pixel, row, traits >::row_type |
A row of pixel data.
typedef row_type& png::basic_pixel_buffer< pixel, row, traits >::row_access |
typedef row_type const& png::basic_pixel_buffer< pixel, row, traits >::row_const_access |
typedef traits png::basic_pixel_buffer< pixel, row, traits >::row_traits |
typedef std::vector< row_type > png::basic_pixel_buffer< pixel, row, traits >::row_vec [protected] |
png::basic_pixel_buffer< pixel, row, traits >::basic_pixel_buffer | ( | ) | [inline] |
Constructs an empty 0x0 pixel buffer object.
png::basic_pixel_buffer< pixel, row, traits >::basic_pixel_buffer | ( | uint_32 | width, |
uint_32 | height | ||
) | [inline] |
Constructs an empty pixel buffer object.
uint_32 png::basic_pixel_buffer< pixel, row, traits >::get_width | ( | ) | const [inline] |
uint_32 png::basic_pixel_buffer< pixel, row, traits >::get_height | ( | ) | const [inline] |
void png::basic_pixel_buffer< pixel, row, traits >::resize | ( | uint_32 | width, |
uint_32 | height | ||
) | [inline] |
Resizes the pixel buffer.
If new width or height is greater than the original, expanded pixels are filled with value of pixel().
Referenced by png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::basic_pixel_buffer().
row_access png::basic_pixel_buffer< pixel, row, traits >::get_row | ( | size_t | index | ) | [inline] |
Returns a reference to the row of image data at specified index.
Checks the index before returning a row: an instance of std::out_of_range is thrown if index
is greater than height
.
Referenced by png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::get_pixel(), and png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::set_pixel().
row_const_access png::basic_pixel_buffer< pixel, row, traits >::get_row | ( | size_t | index | ) | const [inline] |
Returns a const reference to the row of image data at specified index.
The checking version.
row_access png::basic_pixel_buffer< pixel, row, traits >::operator[] | ( | size_t | index | ) | [inline] |
The non-checking version of get_row() method.
row_const_access png::basic_pixel_buffer< pixel, row, traits >::operator[] | ( | size_t | index | ) | const [inline] |
The non-checking version of get_row() method.
void png::basic_pixel_buffer< pixel, row, traits >::put_row | ( | size_t | index, |
row_type const & | r | ||
) | [inline] |
Replaces the row at specified index.
pixel png::basic_pixel_buffer< pixel, row, traits >::get_pixel | ( | size_t | x, |
size_t | y | ||
) | const [inline] |
Returns a pixel at (x,y) position.
void png::basic_pixel_buffer< pixel, row, traits >::set_pixel | ( | size_t | x, |
size_t | y, | ||
pixel | p | ||
) | [inline] |
Replaces a pixel at (x,y) position.
uint_32 png::basic_pixel_buffer< pixel, row, traits >::m_width [protected] |
Referenced by png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::get_width(), png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::put_row(), and png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::resize().
uint_32 png::basic_pixel_buffer< pixel, row, traits >::m_height [protected] |
row_vec png::basic_pixel_buffer< pixel, row, traits >::m_rows [protected] |
Referenced by png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::get_row(), png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::operator[](), png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::put_row(), and png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::resize().