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Implement changes to RedrawRequested event (#1062)

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* Implement changes to `RedrawRequested` event

Implements the changes described in #1041 for the X11 platform and for
platform-independent public-facing code.

* Fix `request_redraw` example

* Fix examples in lib docs

* Only issue `RedrawRequested` on final `Expose` event
This commit is contained in:
Murarth 2019-07-30 23:31:12 -07:00 • committed by Osspial
parent c10c820311
commit 0c151f9fb3
7 changed files with 67 additions and 37 deletions
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13
src/platform_impl/linux/x11/event_processor.rs
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@ -534,13 +534,14 @@ impl<T: 'static> EventProcessor<T> {
ffi::Expose => {
let xev: &ffi::XExposeEvent = xev.as_ref();
let window = xev.window;
let window_id = mkwid(window);
// Multiple Expose events may be received for subareas of a window.
// We issue `RedrawRequested` only for the last event of such a series.
if xev.count == 0 {
let window = xev.window;
let window_id = mkwid(window);
callback(Event::WindowEvent {
window_id,
event: WindowEvent::RedrawRequested,
});
callback(Event::RedrawRequested(window_id));
}
}
ffi::KeyPress | ffi::KeyRelease => {