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use crate::canvas::{Cursor, Event, Geometry};
use iced_native::{MouseCursor, Rectangle};
pub trait Program<Message> {
fn update(
&mut self,
_event: Event,
_bounds: Rectangle,
_cursor: Cursor,
) -> Option<Message> {
None
}
fn draw(&self, bounds: Rectangle, cursor: Cursor) -> Vec<Geometry>;
fn mouse_cursor(&self, _bounds: Rectangle, _cursor: Cursor) -> MouseCursor {
MouseCursor::default()
}
}
impl<T, Message> Program<Message> for &mut T
where
T: Program<Message>,
{
fn update(
&mut self,
event: Event,
bounds: Rectangle,
cursor: Cursor,
) -> Option<Message> {
T::update(self, event, bounds, cursor)
}
fn draw(&self, bounds: Rectangle, cursor: Cursor) -> Vec<Geometry> {
T::draw(self, bounds, cursor)
}
fn mouse_cursor(&self, bounds: Rectangle, cursor: Cursor) -> MouseCursor {
T::mouse_cursor(self, bounds, cursor)
}
}
|
