Repeating texture to fit certain size in SFML - sfml

Question

I have a file that contains textures. I load it to sf::Texture and split into sprites with setTextureRect.
Now lets say one sprite contains part of texture that is 20 pixels wide. How can I render it to fit width of e.g. 213 pixels. The only way I can think about is to render it to sf::RenderTexture and crop it with another sprite.
Is there a better way to do this?

Answer 1

You can use sf::Texture::setRepeated to do that.
However, you'll need to copy that part of your bigger image into an independant texture.
Here is an example:
#include <SFML/Graphics.hpp>
int main(int, char const**)
{
sf::RenderWindow window(sf::VideoMode(800, 600), "SFML window");
sf::Image img;
img.create(20, 20);
for (auto i = 0; i < 20; ++i) {
for (auto j = 0; j < 20; ++j) {
img.setPixel(i, j, sf::Color(255 * i / 20, 255 * j / 20, 255 * i / 20 * j / 20));
}
}
sf::Texture texture;
texture.loadFromImage(img);
texture.setRepeated(true);
sf::Sprite sprite;
sprite.setTexture(texture);
sprite.setTextureRect({ 0, 0, 800, 600 });
while (window.isOpen()) {
sf::Event event;
while (window.pollEvent(event)) {
if (event.type == sf::Event::Closed) {
window.close();
}
if (event.type == sf::Event::KeyPressed && event.key.code == sf::Keyboard::Escape) {
window.close();
}
}
window.clear();
window.draw(sprite);
window.display();
}
return EXIT_SUCCESS;
}