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image_base.hpp
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image_base.hpp
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// Distributed under the BSD License, see accompanying LICENSE.txt
// (C) Copyright 2010 John-John Tedro et al.
#ifndef IMAGE_BASE
#define IMAGE_BASE
#include <cstdlib>
#include <map>
#include <boost/filesystem.hpp>
#include <boost/shared_ptr.hpp>
#include "image/image_operations.hpp"
#include "image/color.hpp"
class image_base;
typedef boost::shared_ptr<image_base> image_ptr;
typedef uint64_t pos_t;
class image_base
{
protected:
pos_t width, height;
public:
typedef void (*progress_c)(int , int);
image_base(pos_t width, pos_t height)
: width(width), height(height) {
}
virtual ~image_base() {
}
void fill(color& c);
void clear();
inline pos_t get_width() { return width; };
inline pos_t get_height() { return height; };
void composite(int xoffset, int yoffset, image_operations_ptr oper);
inline std::streampos get_offset(std::streampos x, std::streampos y) {
std::streampos width = get_width();
return x + y * width;
}
void safe_blend_pixel(pos_t x, pos_t y, color &c);
void get_line(pos_t y, color *c) {
get_line(y, 0, get_width(), c);
}
template<typename T>
void save(const std::string str, typename T::opt_type opts) {
T::save(this, str, opts);
}
void draw_line(pos_t x1, pos_t y1, pos_t x2, pos_t y2, color &c);
void resize(image_ptr target);
virtual void blend_pixel(pos_t x, pos_t y, color &c) = 0;
virtual void set_pixel(pos_t x, pos_t y, color& c) = 0;
virtual void get_pixel(pos_t x, pos_t y, color& c) = 0;
virtual void get_line(pos_t y, pos_t offset, pos_t width, color*) = 0;
virtual void set_line(pos_t y, pos_t offset, pos_t width, color*) {};
virtual void align(pos_t x, pos_t y, pos_t width, pos_t height) {};
};
#endif /* IMAGE_BASE */