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use rin_math::{Vec2, Pnt2, pnt2, Rect};
use super::{Event, Cursor, CursorMode};
use seitan::Stream;
use std::time::Duration;

pub trait WindowExt {
    fn make_current(&mut self);

    fn swap_buffers(&mut self);

    fn update(&mut self);

    fn fps(&self) -> f64;

    fn frames(&self) -> u64;

    fn set_swap_interval(&mut self, frames: u32);

    //TODO: fn event_receiver(&self) -> mpsc::Receiver<(u64,window::Event)>;

    fn event_stream<'a>(&mut self) -> Stream<'a,Event>;


    fn curr_frame_duration(&self) -> Duration;

    fn curr_frame_duration_ns(&self) -> u128 {
        self.curr_frame_duration().as_nanos()
    }

    fn curr_frame_duration_s(&self) -> f64 {
        self.curr_frame_duration().as_secs_f64()
    }

    fn time_elapsed_ns(&self) -> u64;

    fn size(&self) -> Vec2<i32>;

    fn width(&self) -> i32;

    fn height(&self) -> i32;

    fn position(&self) -> Pnt2<i32>;

    fn aspect_ratio(&self) -> f32;

    fn set_position(&mut self, pos: Pnt2<i32>);

    fn screen_size(&self) -> Vec2<u32>;

    fn should_close(&self) -> bool;

    fn set_should_close(&mut self);

    fn dpi(&self) -> u32{
        72
    }

    fn resolution_factor(&self) -> f32{
        1.0
    }

    fn viewport(&self) -> Rect<i32>{
        Rect{pos: pnt2(0, 0), width: self.width(), height: self.height()}
    }

    fn set_fullscreen(&mut self, fullscreen: bool);

    fn set_cursor(&mut self, cursor: Cursor);

    fn set_cursor_mode(&mut self, cursor_mode: CursorMode);
}