/usr/include/claw/image.hpp is in libclaw-graphic-dev 1.7.4-2.
This file is owned by root:root, with mode 0o644.
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CLAW - a C++ Library Absolutely Wonderful
CLAW is a free library without any particular aim but being useful to
anyone.
Copyright (C) 2005-2011 Julien Jorge
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
contact: julien.jorge@gamned.org
*/
/**
* \file image.hpp
* \brief A class to deal with images.
* \author Julien Jorge
*/
#ifndef __CLAW_IMAGE_HPP__
#define __CLAW_IMAGE_HPP__
#include <claw/pixel.hpp>
#include <claw/math.hpp>
#include <vector>
#include <iterator>
#include <iostream>
#include <cstddef>
namespace claw
{
namespace graphic
{
/**
* \brief A class to deal with images.
* \author Julien Jorge
*/
class image
{
public:
/** \brief The type representing the colors of the pixels in the image. */
typedef rgba_pixel pixel_type;
/**
* \brief One line in the image.
* \author Julien Jorge
*/
class scanline:
private std::vector<pixel_type>
{
friend class image;
public:
/** \brief The type of the parent class. */
typedef std::vector<pixel_type> super;
/** \brief The type of the pixels. */
typedef super::value_type value_type;
/** \brief Reference to a pixel.. */
typedef super::reference reference;
/** \brief Const reference to a pixel. */
typedef super::const_reference const_reference;
/** \brief Iterator in the line. */
typedef super::iterator iterator;
/** \brief Const iterator in the line. */
typedef super::const_iterator const_iterator;
/** \brief An unsigned integral type. */
typedef super::size_type size_type;
public:
iterator begin();
iterator end();
const_iterator begin() const;
const_iterator end() const;
inline reference operator[](unsigned int i);
inline const_reference operator[](unsigned int i) const;
size_type size() const;
}; // class scanline
public:
/**
* \brief Base class for iterators on an image.
* \author Julien Jorge.
*/
template<typename Image, typename Pixel>
class base_iterator:
public std::iterator<std::random_access_iterator_tag, Pixel>
{
private:
/** \brief The type of the image we are iterating through. */
typedef Image image_type;
/** \brief The type of the pointed pixels. */
typedef Pixel pixel_type;
/** \brief The type of the current class. */
typedef base_iterator<image_type, pixel_type> self_type;
public:
/** \brief The type of the values accessed by the iterator. */
typedef pixel_type value_type;
/** \brief The type of the references to the values accesssed by the
iterator. */
typedef pixel_type& reference;
/** \brief The type of the pointers to the values accesssed by the
iterator. */
typedef pixel_type* pointer;
/** \brief The type of the distance between two iterators. */
typedef ptrdiff_t difference_type;
/** \brief The type of this category. */
typedef std::random_access_iterator_tag iterator_category;
public:
inline base_iterator();
inline base_iterator( image_type& owner, unsigned int x=0,
unsigned int y = 0 );
inline bool operator==( const self_type& that ) const;
inline bool operator!=( const self_type& that ) const;
inline bool operator<( const self_type& that ) const;
inline bool operator>( const self_type& that ) const;
inline bool operator<=( const self_type& that ) const;
inline bool operator>=( const self_type& that ) const;
inline self_type& operator+=( int n );
inline self_type& operator-=( int n );
inline self_type operator+( int n ) const;
inline self_type operator-( int n ) const;
/**
* \brief Get an iterator at a specific distance of the current
* iterator.
* \param n The distance of the wanted iterator.
* \param self The reference iterator.
*/
template<typename ImageT, typename PixelT>
friend inline self_type operator+( int n, const self_type& self );
inline difference_type operator-( const self_type& that ) const;
inline self_type& operator++();
inline self_type operator++(int);
inline self_type& operator--();
inline self_type operator--(int);
inline reference operator*() const;
inline pointer operator->() const;
inline reference operator[]( int n ) const;
private:
bool is_final() const;
private:
/** \brief The image we are iterating through. */
image_type* m_owner;
/** \brief Coordinates of the pointed pixel in m_owner. */
math::coordinate_2d<unsigned int> m_pos;
}; // class base_iterator
public:
/**
* \brief The type of the iterator on the pixels of the image.
*
* The pixels are accessed from the top line to the bottom line, and from
* the left to the right.
*/
typedef base_iterator<image, pixel_type> iterator;
/**
* \brief The type of the iterator to access constant pixels.
*
* The pixels are accessed from the top line to the bottom line, and from
* the left to the right.
*/
typedef base_iterator<const image, const pixel_type> const_iterator;
public:
image();
image( unsigned int w, unsigned int h );
image( std::istream& f );
void swap( image& that );
unsigned int width() const;
unsigned int height() const;
inline scanline& operator[](unsigned int i);
inline const scanline& operator[](unsigned int i) const;
iterator begin();
iterator end();
const_iterator begin() const;
const_iterator end() const;
void merge( const image& that );
void merge
( const image& that, const math::coordinate_2d<int>& pos );
void partial_copy
( const image& that, const math::coordinate_2d<int>& pos );
void flip();
void fill( const math::rectangle<int> r, const pixel_type& c );
void set_size( unsigned int w, unsigned int h );
void load( std::istream& f );
private:
/** \brief Data of the picture. */
std::vector<scanline> m_data;
}; // class image
} // namespace graphic
} // namespace claw
namespace std
{
void swap( claw::graphic::image& a, claw::graphic::image& b );
} // namespace std
// Inline methods
#include <claw/impl/image.ipp>
#endif // __CLAW_IMAGE_HPP__
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