bevy/examples/window/scale_factor_override.rs
Alice Cecile 481eec2c92 Rename UiColor to BackgroundColor (#6087)
# Objective

Fixes #6078. The `UiColor` component is unhelpfully named: it is unclear, ambiguous with border color and 

## Solution

Rename the `UiColor` component (and associated fields) to `BackgroundColor` / `background_colorl`.

## Migration Guide

`UiColor` has been renamed to `BackgroundColor`. This change affects `NodeBundle`, `ButtonBundle` and `ImageBundle`. In addition, the corresponding field on `ExtractedUiNode` has been renamed to `background_color` for consistency.
2022-09-25 00:39:17 +00:00

82 lines
2.9 KiB
Rust

//! This example illustrates how to override the window scale factor imposed by the
//! operating system.
use bevy::prelude::*;
fn main() {
App::new()
.insert_resource(WindowDescriptor {
width: 500.,
height: 300.,
..default()
})
.add_plugins(DefaultPlugins)
.add_startup_system(setup)
.add_system(toggle_override)
.add_system(change_scale_factor)
.run();
}
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
// camera
commands.spawn(Camera2dBundle::default());
// root node
commands
.spawn(NodeBundle {
style: Style {
size: Size::new(Val::Percent(100.0), Val::Percent(100.0)),
justify_content: JustifyContent::SpaceBetween,
..default()
},
background_color: Color::NONE.into(),
..default()
})
.with_children(|parent| {
// left vertical fill (border)
parent
.spawn(NodeBundle {
style: Style {
size: Size::new(Val::Px(200.0), Val::Percent(100.0)),
border: UiRect::all(Val::Px(2.0)),
..default()
},
background_color: Color::rgb(0.65, 0.65, 0.65).into(),
..default()
})
.with_children(|parent| {
parent.spawn(
TextBundle::from_section(
"Example text",
TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 30.0,
color: Color::WHITE,
},
)
.with_style(Style {
align_self: AlignSelf::FlexEnd,
..default()
}),
);
});
});
}
/// This system toggles scale factor overrides when enter is pressed
fn toggle_override(input: Res<Input<KeyCode>>, mut windows: ResMut<Windows>) {
let window = windows.primary_mut();
if input.just_pressed(KeyCode::Return) {
window.set_scale_factor_override(window.scale_factor_override().xor(Some(1.)));
}
}
/// This system changes the scale factor override when up or down is pressed
fn change_scale_factor(input: Res<Input<KeyCode>>, mut windows: ResMut<Windows>) {
let window = windows.primary_mut();
if input.just_pressed(KeyCode::Up) {
window.set_scale_factor_override(window.scale_factor_override().map(|n| n + 1.));
} else if input.just_pressed(KeyCode::Down) {
window.set_scale_factor_override(window.scale_factor_override().map(|n| (n - 1.).max(1.)));
}
}