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 traits | row_traits |
Public Member Functions | |
| basic_pixel_buffer () | |
| Constructs an empty 0x0 pixel buffer object. | |
| basic_pixel_buffer (size_t width, size_t height) | |
| Constructs an empty pixel buffer object. | |
| size_t | get_width () const |
| size_t | get_height () const |
| void | resize (size_t width, size_t height) |
| Resizes the pixel buffer. | |
| row_type & | get_row (size_t index) |
| Returns a reference to the row of image data at specified index. | |
| row_type const & | get_row (size_t index) const |
| Returns a const reference to the row of image data at specified index. | |
| row_type & | operator[] (size_t index) |
| The non-checking version of get_row() method. | |
| row_type const & | 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 | |
| size_t | m_width |
| size_t | 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 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 | ( | size_t | width, | |
| size_t | height | |||
| ) | [inline] |
Constructs an empty pixel buffer object.
| size_t png::basic_pixel_buffer< pixel, row, traits >::get_width | ( | ) | const [inline] |
Referenced by png::image< pixel >::get_width().
| size_t png::basic_pixel_buffer< pixel, row, traits >::get_height | ( | ) | const [inline] |
Referenced by png::image< pixel >::get_height().
| void png::basic_pixel_buffer< pixel, row, traits >::resize | ( | size_t | width, | |
| size_t | 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(), png::image< pixel >::pixel_consumer::reset(), and png::image< pixel >::resize().
| row_type& 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::image< pixel >::streaming_impl< generator< pixel, pixel_generator, image_info_ref_holder, true > >::get_next_row(), png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::get_pixel(), png::image< pixel >::get_row(), and png::basic_pixel_buffer< packed_index_pixel< bits >, packed_pixel_row< packed_index_pixel< bits > > >::set_pixel().
| row_type const& 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_type& png::basic_pixel_buffer< pixel, row, traits >::operator[] | ( | size_t | index | ) | [inline] |
The non-checking version of get_row() method.
| row_type const& 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.
Referenced by png::image< pixel >::get_pixel().
| 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.
Referenced by png::image< pixel >::set_pixel().
size_t 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().
size_t 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().
1.7.1