Files
piphoto/image.h
2017-08-06 19:39:11 +00:00

56 lines
1.9 KiB
C++

#pragma once
#include "color.h"
#include "coord.h"
template <uint32_t X, uint32_t Y>
class Image : public std::array<std::array<Color, X>, Y> {
public:
constexpr const Color& GetPixel(const Coord& coord) const;
void SetPixel(const Coord& coord, const Color& color);
void DrawXLine(const Coord& start, const Color& color, uint32_t length);
void DrawYLine(const Coord& start, const Color& color, uint32_t length);
void DrawRectangle(const Coord& start, const Color& color, uint32_t x_length, uint32_t y_length);
void DrawSquare(const Coord& start, const Color& color, uint32_t length);
};
template <uint32_t X, uint32_t Y>
constexpr const Color& Image<X, Y>::GetPixel(const Coord& coord) const {
return this->at(coord.y).at(coord.x);
}
template <uint32_t X, uint32_t Y>
void Image<X, Y>::SetPixel(const Coord& coord, const Color& color) {
this->at(coord.y).at(coord.x) = color;
}
template <uint32_t X, uint32_t Y>
void Image<X, Y>::DrawXLine(const Coord& coord, const Color& color, uint32_t length) {
auto& row = this->at(coord.y);
for (uint32_t x = coord.x; x < std::min(X, coord.x + length); ++x) {
row.at(x) = color;
}
}
template <uint32_t X, uint32_t Y>
void Image<X, Y>::DrawYLine(const Coord& coord, const Color& color, uint32_t length) {
for (uint32_t y = coord.y; y <= std::min(Y, coord.y + length); ++y) {
SetPixel({coord.x, y}, color);
}
}
template <uint32_t X, uint32_t Y>
void Image<X, Y>::DrawRectangle(const Coord& start, const Color& color, uint32_t x_length, uint32_t y_length) {
DrawXLine(start, color, x_length);
DrawXLine({start.x, start.y + y_length}, color, x_length);
DrawYLine(start, color, y_length);
DrawYLine({start.x + x_length, start.y}, color, y_length);
}
template <uint32_t X, uint32_t Y>
void Image<X, Y>::DrawSquare(const Coord& start, const Color& color, uint32_t length) {
DrawRectangle(start, color, length, length);
}