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use crate::core::mouse;
use crate::core::window::Id;
use crate::core::{Point, Size};
use crate::graphics::Compositor;
use crate::multi_window::{Application, DefaultStyle, State};
use std::collections::BTreeMap;
use std::sync::Arc;
use winit::monitor::MonitorHandle;
#[allow(missing_debug_implementations)]
pub struct WindowManager<A: Application, C: Compositor>
where
C: Compositor<Renderer = A::Renderer>,
A::Theme: DefaultStyle,
{
aliases: BTreeMap<winit::window::WindowId, Id>,
entries: BTreeMap<Id, Window<A, C>>,
}
impl<A, C> WindowManager<A, C>
where
A: Application,
C: Compositor<Renderer = A::Renderer>,
A::Theme: DefaultStyle,
{
pub fn new() -> Self {
Self {
aliases: BTreeMap::new(),
entries: BTreeMap::new(),
}
}
pub fn insert(
&mut self,
id: Id,
window: Arc<winit::window::Window>,
application: &A,
compositor: &mut C,
exit_on_close_request: bool,
) -> &mut Window<A, C> {
let state = State::new(application, id, &window);
let viewport_version = state.viewport_version();
let physical_size = state.physical_size();
let surface = compositor.create_surface(
window.clone(),
physical_size.width,
physical_size.height,
);
let renderer = compositor.create_renderer();
let _ = self.aliases.insert(window.id(), id);
let _ = self.entries.insert(
id,
Window {
raw: window,
state,
viewport_version,
exit_on_close_request,
surface,
renderer,
mouse_interaction: mouse::Interaction::None,
},
);
self.entries
.get_mut(&id)
.expect("Get window that was just inserted")
}
pub fn is_empty(&self) -> bool {
self.entries.is_empty()
}
pub fn iter_mut(
&mut self,
) -> impl Iterator<Item = (Id, &mut Window<A, C>)> {
self.entries.iter_mut().map(|(k, v)| (*k, v))
}
pub fn get_mut(&mut self, id: Id) -> Option<&mut Window<A, C>> {
self.entries.get_mut(&id)
}
pub fn get_mut_alias(
&mut self,
id: winit::window::WindowId,
) -> Option<(Id, &mut Window<A, C>)> {
let id = self.aliases.get(&id).copied()?;
Some((id, self.get_mut(id)?))
}
pub fn last_monitor(&self) -> Option<MonitorHandle> {
self.entries.values().last()?.raw.current_monitor()
}
pub fn remove(&mut self, id: Id) -> Option<Window<A, C>> {
let window = self.entries.remove(&id)?;
let _ = self.aliases.remove(&window.raw.id());
Some(window)
}
}
impl<A, C> Default for WindowManager<A, C>
where
A: Application,
C: Compositor<Renderer = A::Renderer>,
A::Theme: DefaultStyle,
{
fn default() -> Self {
Self::new()
}
}
#[allow(missing_debug_implementations)]
pub struct Window<A, C>
where
A: Application,
C: Compositor<Renderer = A::Renderer>,
A::Theme: DefaultStyle,
{
pub raw: Arc<winit::window::Window>,
pub state: State<A>,
pub viewport_version: u64,
pub exit_on_close_request: bool,
pub mouse_interaction: mouse::Interaction,
pub surface: C::Surface,
pub renderer: A::Renderer,
}
impl<A, C> Window<A, C>
where
A: Application,
C: Compositor<Renderer = A::Renderer>,
A::Theme: DefaultStyle,
{
pub fn position(&self) -> Option<Point> {
self.raw
.inner_position()
.ok()
.map(|position| position.to_logical(self.raw.scale_factor()))
.map(|position| Point {
x: position.x,
y: position.y,
})
}
pub fn size(&self) -> Size {
let size = self.raw.inner_size().to_logical(self.raw.scale_factor());
Size::new(size.width, size.height)
}
}
|
