2019-08-18 09:00:23 +03:00
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use ::window::*;
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use failure::Fallible;
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use std::any::Any;
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struct MyWindow {
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allow_close: bool,
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2019-11-24 03:46:46 +03:00
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cursor_pos: Point,
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2019-08-18 09:00:23 +03:00
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}
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impl Drop for MyWindow {
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fn drop(&mut self) {
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eprintln!("MyWindow dropped");
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}
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}
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impl WindowCallbacks for MyWindow {
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fn can_close(&mut self) -> bool {
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eprintln!("can I close?");
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if self.allow_close {
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true
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} else {
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self.allow_close = true;
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false
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}
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}
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fn destroy(&mut self) {
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eprintln!("destroy was called!");
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Connection::get().unwrap().terminate_message_loop();
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}
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fn paint(&mut self, context: &mut dyn PaintContext) {
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// Pick a purple background color
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context.clear(Color::rgb(0x40, 0x20, 0x60));
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}
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fn resize(&mut self, dims: Dimensions) {
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eprintln!("resize {:?}", dims);
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}
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fn key_event(&mut self, key: &KeyEvent, ctx: &dyn WindowOps) -> bool {
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eprintln!("{:?}", key);
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ctx.set_cursor(Some(MouseCursor::Text));
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false
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}
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fn mouse_event(&mut self, event: &MouseEvent, ctx: &dyn WindowOps) {
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2019-11-24 03:46:46 +03:00
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self.cursor_pos = event.coords;
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2019-08-18 09:00:23 +03:00
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ctx.invalidate();
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ctx.set_cursor(Some(MouseCursor::Arrow));
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if event.kind == MouseEventKind::Press(MousePress::Left) {
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eprintln!("{:?}", event);
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}
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}
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fn as_any(&mut self) -> &mut dyn Any {
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self
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}
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}
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async fn spawn_window() -> Result<(), Box<dyn std::error::Error>> {
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let win = Window::new_window(
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"myclass",
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"the title",
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800,
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600,
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Box::new(MyWindow {
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allow_close: false,
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2019-11-24 03:46:46 +03:00
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cursor_pos: Point::new(100, 200),
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2019-08-18 09:00:23 +03:00
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}),
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)?;
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2019-11-23 10:37:02 +03:00
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eprintln!("before show");
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win.show().await?;
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eprintln!("after show");
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2019-08-18 09:00:23 +03:00
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win.apply(|myself, _win| {
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eprintln!("doing apply");
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if let Some(myself) = myself.downcast_ref::<MyWindow>() {
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eprintln!(
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"got myself; allow_close={}, cursor_pos:{:?}",
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myself.allow_close, myself.cursor_pos
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);
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}
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2019-11-23 10:37:02 +03:00
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Ok(())
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})
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.await?;
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2019-08-18 09:00:23 +03:00
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eprintln!("done with spawn_window");
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Ok(())
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}
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fn main() -> Fallible<()> {
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let conn = Connection::init()?;
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conn.spawn_task(async {
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eprintln!("running this async block");
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spawn_window().await.ok();
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2019-11-23 10:37:02 +03:00
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eprintln!("end of async block");
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2019-08-18 09:00:23 +03:00
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});
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conn.run_message_loop()
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}
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