54 lines
1.5 KiB
Rust
54 lines
1.5 KiB
Rust
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use {
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std::sync::{Arc, RwLock},
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cgmath::Vector2,
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crate::{
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view::{View, Observer},
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port::{ViewPort, InnerViewPort, OuterViewPort},
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terminal::{TerminalAtom}
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}
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};
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pub struct TerminalCompositor {
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layers: Arc<RwLock<Vec<Arc<dyn View<Key = Vector2<i16>, Value = TerminalAtom>>>>>,
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port: Arc<InnerViewPort<Vector2<i16>, TerminalAtom>>
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}
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impl TerminalCompositor {
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pub fn new(port: InnerViewPort<Vector2<i16>, TerminalAtom>) -> Self {
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let layers = Arc::new(RwLock::new(Vec::<Arc<dyn View<Key = Vector2<i16>, Value = TerminalAtom>>>::new()));
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port.set_view_fn({
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let layers = layers.clone();
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move |pos| {
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let mut atom = None;
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for l in layers.read().unwrap().iter() {
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match (atom, l.view(pos)) {
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(None, next) => atom = next,
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(Some(last), Some(next)) => atom = Some(next.add_style_back(last.style)),
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_ => {}
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}
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}
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atom
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}
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});
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TerminalCompositor {
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layers,
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port: Arc::new(port)
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}
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}
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pub fn push(&mut self, v: OuterViewPort<Vector2<i16>, TerminalAtom>) {
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self.layers.write().unwrap().push(v.add_observer(self.port.clone()));
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}
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pub fn make_port(&mut self) -> InnerViewPort<Vector2<i16>, TerminalAtom> {
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let port = ViewPort::new();
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self.push(port.outer());
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port.inner()
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}
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}
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