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use crate::{Color, MouseCursor};
use raw_window_handle::HasRawWindowHandle;
/// A renderer that can target windows.
pub trait Windowed: super::Renderer + Sized {
/// The type of target.
type Target: Target<Renderer = Self>;
/// Creates a new [`Windowed`] renderer.
///
/// [`Windowed`]: trait.Windowed.html
fn new() -> Self;
/// Performs the drawing operations described in the output on the given
/// target.
///
/// The overlay can be a bunch of debug text logs. It should be rendered on
/// top of the GUI on most scenarios.
fn draw<T: AsRef<str>>(
&mut self,
clear_color: Color,
output: &Self::Output,
overlay: &[T],
target: &mut Self::Target,
) -> MouseCursor;
}
/// A rendering target.
pub trait Target {
/// The renderer of this target.
type Renderer;
/// Creates a new rendering [`Target`] from the given window handle, width,
/// height and dpi factor.
///
/// [`Target`]: trait.Target.html
fn new<W: HasRawWindowHandle>(
window: &W,
width: u16,
height: u16,
dpi: f32,
renderer: &Self::Renderer,
) -> Self;
/// Resizes the current [`Target`].
///
/// [`Target`]: trait.Target.html
fn resize(
&mut self,
width: u16,
height: u16,
dpi: f32,
renderer: &Self::Renderer,
);
}
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