zed/crates/gpui/examples/hello_world.rs
Bennet Bo Fenner e272acd1bc
collab ui: Fix notification windows on external monitors (#9817)
Sharing a project displays a notification (window) on every screen.
Previously there was an issue with the positioning of windows on all
screens except the primary screen.

As you can see here:


![image](https://github.com/zed-industries/zed/assets/53836821/314cf367-8c70-4e8e-bc4a-dcbb99cb4f71)

Now:


![image](https://github.com/zed-industries/zed/assets/53836821/42af9ef3-8af9-453a-ad95-147b5f9d90ba)

@mikayla-maki and I also decided to refactor the `WindowOptions` a bit. 
Previously you could specify bounds which controlled the positioning and
size of the window in the global coordinate space, while also providing
a display id (which screen to show the window on). This can lead to
unusual behavior because you could theoretically specify a global bound
which does not even belong to the display id which was provided.

Therefore we changed the api to this:
```rust
struct WindowOptions {
    /// The bounds of the window in screen coordinates
    /// None -> inherit, Some(bounds) -> set bounds.
    pub bounds: Option<Bounds<DevicePixels>>,

    /// The display to create the window on, if this is None,
    /// the window will be created on the main display
    pub display_id: Option<DisplayId>,
}
```

This lets you specify a display id, which maps to the screen where the
window should be created and bounds relative to the upper left of the
screen.

Release Notes:

- Fixed positioning of popup windows (e.g. when sharing a project) when
using multiple external displays.

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
2024-03-26 13:07:38 -07:00

40 lines
997 B
Rust

use gpui::*;
struct HelloWorld {
text: SharedString,
}
impl Render for HelloWorld {
fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
div()
.flex()
.bg(rgb(0x2e7d32))
.size(Length::Definite(Pixels(300.0).into()))
.justify_center()
.items_center()
.shadow_lg()
.border()
.border_color(rgb(0x0000ff))
.text_xl()
.text_color(rgb(0xffffff))
.child(format!("Hello, {}!", &self.text))
}
}
fn main() {
App::new().run(|cx: &mut AppContext| {
let bounds = Bounds::centered(None, size(px(600.0), px(600.0)), cx);
cx.open_window(
WindowOptions {
bounds: Some(bounds),
..Default::default()
},
|cx| {
cx.new_view(|_cx| HelloWorld {
text: "World".into(),
})
},
);
});
}