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use crate::core::{window, Size};
use crate::multi_window::{Application, State};
use iced_graphics::Compositor;
use iced_style::application::StyleSheet;
use std::fmt::{Debug, Formatter};
use winit::monitor::MonitorHandle;
pub struct Windows<A: Application, C: Compositor>
where
<A::Renderer as crate::core::Renderer>::Theme: StyleSheet,
C: Compositor<Renderer = A::Renderer>,
{
pub ids: Vec<window::Id>,
pub raw: Vec<winit::window::Window>,
pub states: Vec<State<A>>,
pub viewport_versions: Vec<usize>,
pub surfaces: Vec<C::Surface>,
pub renderers: Vec<A::Renderer>,
pub pending_destroy: Vec<(window::Id, winit::window::WindowId)>,
}
impl<A: Application, C: Compositor> Debug for Windows<A, C>
where
<A::Renderer as crate::core::Renderer>::Theme: StyleSheet,
C: Compositor<Renderer = A::Renderer>,
{
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
f.debug_struct("Windows")
.field("ids", &self.ids)
.field(
"raw",
&self
.raw
.iter()
.map(|raw| raw.id())
.collect::<Vec<winit::window::WindowId>>(),
)
.field("states", &self.states)
.field("viewport_versions", &self.viewport_versions)
.finish()
}
}
impl<A: Application, C: Compositor> Windows<A, C>
where
<A::Renderer as crate::core::Renderer>::Theme: StyleSheet,
C: Compositor<Renderer = A::Renderer>,
{
/// Creates a new [`Windows`] with a single `window::Id::MAIN` window.
pub fn new(
application: &A,
compositor: &mut C,
renderer: A::Renderer,
main: winit::window::Window,
) -> Self {
let state = State::new(application, window::Id::MAIN, &main);
let viewport_version = state.viewport_version();
let physical_size = state.physical_size();
let surface = compositor.create_surface(
&main,
physical_size.width,
physical_size.height,
);
Self {
ids: vec![window::Id::MAIN],
raw: vec![main],
states: vec![state],
viewport_versions: vec![viewport_version],
surfaces: vec![surface],
renderers: vec![renderer],
pending_destroy: vec![],
}
}
/// Adds a new window to [`Windows`]. Returns the size of the newly created window in logical
/// pixels & the index of the window within [`Windows`].
pub fn add(
&mut self,
application: &A,
compositor: &mut C,
id: window::Id,
window: winit::window::Window,
) -> (Size, usize) {
let state = State::new(application, id, &window);
let window_size = state.logical_size();
let viewport_version = state.viewport_version();
let physical_size = state.physical_size();
let surface = compositor.create_surface(
&window,
physical_size.width,
physical_size.height,
);
let renderer = compositor.renderer();
self.ids.push(id);
self.raw.push(window);
self.states.push(state);
self.viewport_versions.push(viewport_version);
self.surfaces.push(surface);
self.renderers.push(renderer);
(window_size, self.ids.len() - 1)
}
pub fn is_empty(&self) -> bool {
self.ids.is_empty()
}
pub fn main(&self) -> &winit::window::Window {
&self.raw[0]
}
pub fn index_from_raw(&self, id: winit::window::WindowId) -> usize {
self.raw
.iter()
.position(|window| window.id() == id)
.expect("No raw window in multi_window::Windows")
}
pub fn index_from_id(&self, id: window::Id) -> usize {
self.ids
.iter()
.position(|window_id| *window_id == id)
.expect("No window in multi_window::Windows")
}
pub fn last_monitor(&self) -> Option<MonitorHandle> {
self.raw.last().and_then(|w| w.current_monitor())
}
pub fn last(&self) -> usize {
self.ids.len() - 1
}
pub fn with_raw(&self, id: window::Id) -> &winit::window::Window {
let i = self.index_from_id(id);
&self.raw[i]
}
/// Deletes the window with `id` from [`Windows`]. Returns the index that the window had.
pub fn delete(&mut self, id: window::Id) -> usize {
let i = self.index_from_id(id);
let id = self.ids.remove(i);
let window = self.raw.remove(i);
let _ = self.states.remove(i);
let _ = self.viewport_versions.remove(i);
let _ = self.surfaces.remove(i);
self.pending_destroy.push((id, window.id()));
i
}
/// Gets the winit `window` that is pending to be destroyed if it exists.
pub fn get_pending_destroy(
&mut self,
window: winit::window::WindowId,
) -> window::Id {
let i = self
.pending_destroy
.iter()
.position(|(_, window_id)| window == *window_id)
.unwrap();
let (id, _) = self.pending_destroy.remove(i);
id
}
}
|
