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// Created by Дарья Фомина on 21.03.2023.

#include "Image.h"

Image::Color::Color() {

}

Image::Color::Color(double r, double g, double b) : r_(r), g_(g), b_(b) {

}

Image::Color Image::Color::operator+(const Image::Color& other) const {

return Image::Color(r_ + other.r_, g_ + other.g_, b_ + other.b_);

}

Image::Color Image::Color::operator-(const Image::Color& other) const {

return Image::Color(r_ - other.r_, g_ - other.g_, b_ - other.b_);

}

Image::Color Image::Color::operator*(const double val) const {

return Image::Color(r_ * val, g_ * val, b_ * val);

}

Image::Color Image::Color::operator+=(const Image::Color& other) {

r_ += other.r_;

g_ += other.g_;

b_ += other.b_;

return *this;

}

Image::Color Image::Color::operator-=(const Image::Color& other) {

r_ -= other.r_;

g_ -= other.g_;

b_ -= other.b_;

return *this;

}

Image::Color Image::Color::operator*=(const double val) {

r_ *= val;

g_ *= val;

b_ *= val;

return *this;

}

bool Image::Color::operator==(const Image::Color& other) const {

if (std::abs(other.r_ - r_) > EPS) {

return false;

}

if (std::abs(other.b_ - b_) > EPS) {

return false;

}

if (std::abs(other.g_ - g_) > EPS) {

return false;

}

return true;

}

Image::Image() {

}

Image::Image(size_t height, size_t width)

: height_(height),

width_(width),

image_colors_(std::vector<std::vector<Color>>(height, std::vector<Color>(width))) {

}

size_t Image::GetHeight() const {

return height_;

}

size_t Image::GetWidth() const {

return width_;

}

Image::Color& Image::GetColor(const ssize_t x, const ssize_t y) {

std::pair<ssize_t, ssize_t> new_coord = NormalizeCoordinates(y, x);

return image_colors_[new_coord.first][new_coord.second];

}

const Image::Color& Image::GetColor(const ssize_t x, const ssize_t y) const {

std::pair<ssize_t, ssize_t> new_coord = NormalizeCoordinates(y, x);

return image_colors_[new_coord.first][new_coord.second];

}

void Image::SetColor(const ssize_t x, const ssize_t y, const Image::Color& my_color) {

std::pair<ssize_t, ssize_t> new_coord = NormalizeCoordinates(y, x);

image_colors_[new_coord.first][new_coord.second] = my_color;

}

std::pair<ssize_t, ssize_t> Image::NormalizeCoordinates(const ssize_t x, const ssize_t y) const {

std::pair<ssize_t, ssize_t> ans = {x, y};

if (x < 0) {

ans.first = 0;

} else if (x >= height_) {

ans.first = static_cast<ssize_t>(height_) - 1;

}

if (y < 0) {

ans.second = 0;

} else if (y >= width_) {

ans.second = static_cast<ssize_t>(width_) - 1;

}

return ans;

}

size_t Image::GetFileSize() const {

return file_size_;

}

void Image::SetHeight(const size_t height) {

height_ = height;

}

void Image::SetWidth(const size_t width) {

width_ = width;

}

void Image::SetFileSize(const size_t file_size) {

file_size_ = file_size;

}

void Image::EraseColor(size_t x, size_t y) {

auto it = image_colors_[y].begin();

std::advance(it, x);

image_colors_[y].erase(it);

}

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