extern crate sdl2;
use std::env;
use std::path::Path;
use sdl2::event::Event;
use sdl2::image::{LoadSurface, InitFlag};
use sdl2::keyboard::Keycode;
use sdl2::mouse::Cursor;
use sdl2::pixels::Color;
use sdl2::rect::Rect;
use sdl2::surface::Surface;
pub fn run(png: &Path) {
let sdl_context = sdl2::init().unwrap();
let video_subsystem = sdl_context.video().unwrap();
let _image_context = sdl2::image::init(InitFlag::PNG | InitFlag::JPG).unwrap();
let window = video_subsystem.window("rust-sdl2 demo: Cursor", 800, 600)
.position_centered()
.build()
.unwrap();
let mut canvas = window.into_canvas().software().build().unwrap();
let surface = match Surface::from_file(png) {
Ok(surface) => surface,
Err(err) => panic!("failed to load cursor image: {}", err)
};
let cursor = match Cursor::from_surface(surface, 0, 0) {
Ok(cursor) => cursor,
Err(err) => panic!("failed to load cursor: {}", err)
};
cursor.set();
canvas.clear();
canvas.present();
canvas.set_draw_color(Color::RGBA(255, 255, 255, 255));
let mut events = sdl_context.event_pump().unwrap();
'mainloop: loop {
for event in events.poll_iter() {
match event {
Event::Quit{..} |
Event::KeyDown {keycode: Option::Some(Keycode::Escape), ..} =>
break 'mainloop,
Event::MouseButtonDown {x, y, ..} => {
canvas.fill_rect(Rect::new(x, y, 1, 1)).unwrap();
canvas.present();
}
_ => {}
}
}
}
}
fn main() {
let args: Vec<_> = env::args().collect();
if args.len() < 2 {
println!("Usage: cargo run /path/to/image.(png|jpg)")
} else {
run(Path::new(&args[1]));
}
}