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|
mod element;
pub mod widget;
pub use element::Element;
pub use widget::Widget;
use iced_native::layout::{self, Layout};
use iced_native::renderer;
use iced_native::{Hasher, Length, Point, Rectangle};
pub struct Virtual<'a, Message, Renderer> {
state: &'a mut State<Message, Renderer>,
}
pub struct State<Message, Renderer> {
widget_tree: widget::Tree<Message, Renderer>,
last_element: Element<Message, Renderer>,
}
impl<'a, Message, Renderer> iced_native::Widget<Message, Renderer>
for Virtual<'a, Message, Renderer>
where
Renderer: iced_native::Renderer,
{
fn width(&self) -> Length {
self.state.widget_tree.width()
}
fn height(&self) -> Length {
self.state.widget_tree.height()
}
fn layout(
&self,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
self.state.widget_tree.layout(renderer, limits)
}
fn hash_layout(&self, state: &mut Hasher) {
self.state.widget_tree.hash_layout(state)
}
fn draw(
&self,
renderer: &mut Renderer,
style: &renderer::Style,
layout: Layout<'_>,
cursor_position: Point,
viewport: &Rectangle,
) {
self.state.widget_tree.draw(
renderer,
style,
layout,
cursor_position,
viewport,
)
}
}
|
