zed/crates/gpui/examples/hello_world.rs
Jason Lee e9e260776b
gpui: Fix default colors blue, red, green to match in CSS default colors (#20851)
Release Notes:

- N/A

---

This change to let the default colors to 100% match with CSS default
colors.

And update the methods to as `const`.

Here is an example:

<img width="338" alt="image"
src="https://github.com/user-attachments/assets/dd17b46a-3ad4-4122-8dca-e800644c75b0">

https://codepen.io/huacnlee/pen/ZEgNXJZ

But the before version for example blue: `h: 0.6 * 360 = 216`, but we
expected `240`, `240 / 360 = 0.666666666`, so the before version are
lose the precision. (Here is a test tool: https://hslpicker.com/#0000FF)

## After Update

```bash
cargo run -p gpui --example hello_world
```

<img width="612" alt="image"
src="https://github.com/user-attachments/assets/97d479d8-9c71-4be3-95e0-09af45fe47e2">
2024-11-28 10:08:07 +02:00

53 lines
1.5 KiB
Rust

use gpui::*;
struct HelloWorld {
text: SharedString,
}
impl Render for HelloWorld {
fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
div()
.flex()
.flex_col()
.gap_3()
.bg(rgb(0x505050))
.size(Length::Definite(Pixels(500.0).into()))
.justify_center()
.items_center()
.shadow_lg()
.border_1()
.border_color(rgb(0x0000ff))
.text_xl()
.text_color(rgb(0xffffff))
.child(format!("Hello, {}!", &self.text))
.child(
div()
.flex()
.gap_2()
.child(div().size_8().bg(gpui::red()))
.child(div().size_8().bg(gpui::green()))
.child(div().size_8().bg(gpui::blue()))
.child(div().size_8().bg(gpui::yellow()))
.child(div().size_8().bg(gpui::black()))
.child(div().size_8().bg(gpui::white())),
)
}
}
fn main() {
App::new().run(|cx: &mut AppContext| {
let bounds = Bounds::centered(None, size(px(500.), px(500.0)), cx);
cx.open_window(
WindowOptions {
window_bounds: Some(WindowBounds::Windowed(bounds)),
..Default::default()
},
|cx| {
cx.new_view(|_cx| HelloWorld {
text: "World".into(),
})
},
)
.unwrap();
});
}