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Merge pull request #118 from ojacobson/macos-window-resize

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Naive implementation of resize events for OS X.
This commit is contained in:
tomaka 2017-01-25 07:58:08 +01:00 committed by GitHub
parent a927fa0c7c 6f82ccfba9
commit 6738f7cc2e
1 changed files with 16 additions and 4 deletions
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20
src/platform/macos/mod.rs
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@ -43,6 +43,7 @@ struct DelegateState {
view: IdRef,
window: IdRef,
resize_handler: Option<fn(u32, u32)>,
pending_resize: Mutex<Option<(u32, u32)>>,
/// Events that have been retreived with XLib but not dispatched with iterators yet
pending_events: Mutex<VecDeque<Event>>,
@ -75,13 +76,15 @@ impl WindowDelegate {
// need to notify context before (?) event
// let _: () = msg_send![*state.context, update];
if let Some(handler) = state.resize_handler {
let rect = NSView::frame(*state.view);
let scale_factor = NSWindow::backingScaleFactor(*state.window) as f32;
(handler)((scale_factor * rect.size.width as f32) as u32,
(scale_factor * rect.size.height as f32) as u32);
let width = (scale_factor * rect.size.width as f32) as u32;
let height = (scale_factor * rect.size.height as f32) as u32;
if let Some(handler) = state.resize_handler {
(handler)(width, height);
}
*state.pending_resize.lock().unwrap() = Some((width, height));
}
}
@ -209,6 +212,10 @@ impl<'a> Iterator for PollEventsIterator<'a> {
type Item = Event;
fn next(&mut self) -> Option<Event> {
if let Some((width, height)) = self.window.delegate.state.pending_resize.lock().unwrap().take() {
return Some(Event::Resized(width, height));
}
if let Some(ev) = self.window.delegate.state.pending_events.lock().unwrap().pop_front() {
return Some(ev);
}
@ -238,6 +245,10 @@ impl<'a> Iterator for WaitEventsIterator<'a> {
type Item = Event;
fn next(&mut self) -> Option<Event> {
if let Some((width, height)) = self.window.delegate.state.pending_resize.lock().unwrap().take() {
return Some(Event::Resized(width, height));
}
if let Some(ev) = self.window.delegate.state.pending_events.lock().unwrap().pop_front() {
return Some(ev);
}
@ -311,6 +322,7 @@ impl Window {
view: view.clone(),
window: window.clone(),
resize_handler: None,
pending_resize: Mutex::new(None),
pending_events: Mutex::new(VecDeque::new()),
};