HLPL2/Sem1/main.cpp
2020-09-07 08:54:24 +00:00

211 lines
4.4 KiB
C++

#include <iostream>
#include <fstream>
#include <string>
using namespace std;
/*
*------> x
|0 1 2
|3 4 5
|6 7 8
y
*/
class Image
{
uint mx;
uint my;
uint *data;
public:
Image(uint tmx, uint tmy)
{ // Должен инициализировать изображение 0
mx = tmx;
my = tmy;
data = (uint *)malloc(sizeof(uint) * mx * my);
for (uint y = 0; y < my; y++)
{
for (uint x = 0; x < mx; x++)
{
data[mx * y + x] = 27;
}
}
}
void freemem()
{
free(data);
}
int getMx()
{
return mx;
}
int getMy()
{
return my;
}
void show()
{ // Должен выдавать на экран изображение при помощи printf или std::cout
// TODO реализовать
for (uint y = 0; y < my; y++)
{
for (uint x = 0; x < mx; x++)
{
cout << "\033[48;5;" << data[mx * y + x] << "m \033[0m";
}
cout << "\n";
}
cout << "\n";
}
int get(uint x, uint y)
{
// TODO реализовать логику
return data[mx * (y) + (x)];
}
void set(uint x, uint y, uint color)
{
if (x >= mx) {
throw(x);
}
if (y >= my) {
throw(y);
}
data[mx * (y) + (x)] = color;
// TODO реализовать логику
}
void copy(Image* original)
{
freemem();
mx = original->getMx();
my = original->getMy();
data = (uint *)malloc(sizeof(uint) * mx * my);
for (uint y = 0; y < my; y++)
{
for (uint x = 0; x < mx; x++)
{
data[mx * y + x] = original->get(x, y);
}
}
}
// Returns true if equal
bool compare(Image* original)
{
if (original->getMx() == mx && original->getMy() == my)
{
for (uint y = 0; y < my; y++)
{
for (uint x = 0; x < mx; x++)
{
if (data[mx * y + x] != original->get(x, y)){
cout << "Not equal: x = " << x << "; y = " << y << "\n";
return false;
}
}
}
return true;
}
else
{
cout << "original size: " << original->getMx() << "x" << original->getMy() << "\n";
cout << "current size: " << mx << "x" << my << "\n";
return false;
}
}
void draw_horizontal(uint y, uint color) {
if (y >= my) {
throw(y);
}
for (uint x = 0; x < mx; x++) {
data[mx*y + x] = color;
}
}
void draw_vertical(uint x, uint color) {
if (x >= mx) {
throw(x);
}
for (uint y = 0; y < my; y++) {
data[mx*y + x] = color;
}
}
void save_to_file(string filename) {
ofstream writefile;
writefile.open(filename);
if (writefile.is_open()){
writefile << mx << "\t" << my << "\n";
for (uint y = 0; y < my; y++)
{
for (uint x = 0; x < mx; x++)
{
writefile << data[mx * y + x] << "\t";
}
writefile << "\n";
}
writefile.close();
} else
{
cerr << "saving to file failed\n";
}
}
void read_from_file(string filename) {
string line;
ifstream readfile;
readfile.open(filename);
if(readfile.is_open()) {
// TODO
} else {
cerr << "reading file failed";
}
readfile.close();
}
};
Image a(30, 10);
Image b(25, 15);
int main()
{
cout << "Image a \n";
a.show();
cout << "Image b \n";
b.show();
b.copy(&a);
if (b.compare(&a) == true) {
cout << "a == b after copy\n";
} else
{
cout << "a != b after copy!\n";
}
b.set(4, 3, 20);
for (int i = 5; i < 9; i++)
{
b.set(i, 5, 45);
}
b.set(9, 3, 20);
cout << "Image b, copied from a and edited \n";
b.show();
b.draw_horizontal(8, 214);
cout << "Image b, with a horizontal line \n";
b.show();
b.save_to_file("image");
return 0;
}