mirror of
https://github.com/bevyengine/bevy
synced 2024-11-22 12:43:34 +00:00
6f7d0e5725
# Objective
Currently text is recomputed unnecessarily on any changes to its color,
which is extremely expensive.
## Solution
Split up `TextStyle` into two separate components `TextFont` and
`TextColor`.
## Testing
I added this system to `many_buttons`:
```rust
fn set_text_colors_changed(mut colors: Query<&mut TextColor>) {
for mut text_color in colors.iter_mut() {
text_color.set_changed();
}
}
```
reports ~4fps on main, ~50fps with this PR.
## Migration Guide
`TextStyle` has been renamed to `TextFont` and its `color` field has
been moved to a separate component named `TextColor` which newtypes
`Color`.
323 lines
10 KiB
Rust
323 lines
10 KiB
Rust
//! Example demonstrating bordered UI nodes
|
|
|
|
use bevy::{color::palettes::css::*, prelude::*};
|
|
|
|
fn main() {
|
|
App::new()
|
|
.add_plugins(DefaultPlugins)
|
|
.add_systems(Startup, setup)
|
|
.run();
|
|
}
|
|
|
|
fn setup(mut commands: Commands) {
|
|
commands.spawn(Camera2d);
|
|
let root = commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
margin: UiRect::all(Val::Px(25.0)),
|
|
align_self: AlignSelf::Stretch,
|
|
justify_self: JustifySelf::Stretch,
|
|
flex_wrap: FlexWrap::Wrap,
|
|
justify_content: JustifyContent::FlexStart,
|
|
align_items: AlignItems::FlexStart,
|
|
align_content: AlignContent::FlexStart,
|
|
..Default::default()
|
|
},
|
|
background_color: Color::srgb(0.25, 0.25, 0.25).into(),
|
|
..Default::default()
|
|
})
|
|
.id();
|
|
|
|
let root_rounded = commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
margin: UiRect::all(Val::Px(25.0)),
|
|
align_self: AlignSelf::Stretch,
|
|
justify_self: JustifySelf::Stretch,
|
|
flex_wrap: FlexWrap::Wrap,
|
|
justify_content: JustifyContent::FlexStart,
|
|
align_items: AlignItems::FlexStart,
|
|
align_content: AlignContent::FlexStart,
|
|
..Default::default()
|
|
},
|
|
background_color: Color::srgb(0.25, 0.25, 0.25).into(),
|
|
..Default::default()
|
|
})
|
|
.id();
|
|
|
|
// labels for the different border edges
|
|
let border_labels = [
|
|
"None",
|
|
"All",
|
|
"Left",
|
|
"Right",
|
|
"Top",
|
|
"Bottom",
|
|
"Horizontal",
|
|
"Vertical",
|
|
"Top Left",
|
|
"Bottom Left",
|
|
"Top Right",
|
|
"Bottom Right",
|
|
"Top Bottom Right",
|
|
"Top Bottom Left",
|
|
"Top Left Right",
|
|
"Bottom Left Right",
|
|
];
|
|
|
|
// all the different combinations of border edges
|
|
// these correspond to the labels above
|
|
let borders = [
|
|
UiRect::default(),
|
|
UiRect::all(Val::Px(10.)),
|
|
UiRect::left(Val::Px(10.)),
|
|
UiRect::right(Val::Px(10.)),
|
|
UiRect::top(Val::Px(10.)),
|
|
UiRect::bottom(Val::Px(10.)),
|
|
UiRect::horizontal(Val::Px(10.)),
|
|
UiRect::vertical(Val::Px(10.)),
|
|
UiRect {
|
|
left: Val::Px(20.),
|
|
top: Val::Px(10.),
|
|
..Default::default()
|
|
},
|
|
UiRect {
|
|
left: Val::Px(10.),
|
|
bottom: Val::Px(20.),
|
|
..Default::default()
|
|
},
|
|
UiRect {
|
|
right: Val::Px(20.),
|
|
top: Val::Px(10.),
|
|
..Default::default()
|
|
},
|
|
UiRect {
|
|
right: Val::Px(10.),
|
|
bottom: Val::Px(10.),
|
|
..Default::default()
|
|
},
|
|
UiRect {
|
|
right: Val::Px(10.),
|
|
top: Val::Px(20.),
|
|
bottom: Val::Px(10.),
|
|
..Default::default()
|
|
},
|
|
UiRect {
|
|
left: Val::Px(10.),
|
|
top: Val::Px(10.),
|
|
bottom: Val::Px(10.),
|
|
..Default::default()
|
|
},
|
|
UiRect {
|
|
left: Val::Px(20.),
|
|
right: Val::Px(10.),
|
|
top: Val::Px(10.),
|
|
..Default::default()
|
|
},
|
|
UiRect {
|
|
left: Val::Px(10.),
|
|
right: Val::Px(10.),
|
|
bottom: Val::Px(20.),
|
|
..Default::default()
|
|
},
|
|
];
|
|
|
|
for (label, border) in border_labels.into_iter().zip(borders) {
|
|
let inner_spot = commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
width: Val::Px(10.),
|
|
height: Val::Px(10.),
|
|
..Default::default()
|
|
},
|
|
background_color: YELLOW.into(),
|
|
..Default::default()
|
|
})
|
|
.id();
|
|
let border_node = commands
|
|
.spawn((
|
|
NodeBundle {
|
|
style: Style {
|
|
width: Val::Px(50.),
|
|
height: Val::Px(50.),
|
|
border,
|
|
margin: UiRect::all(Val::Px(20.)),
|
|
align_items: AlignItems::Center,
|
|
justify_content: JustifyContent::Center,
|
|
..Default::default()
|
|
},
|
|
background_color: MAROON.into(),
|
|
border_color: RED.into(),
|
|
..Default::default()
|
|
},
|
|
Outline {
|
|
width: Val::Px(6.),
|
|
offset: Val::Px(6.),
|
|
color: Color::WHITE,
|
|
},
|
|
))
|
|
.add_child(inner_spot)
|
|
.id();
|
|
let label_node = commands
|
|
.spawn((
|
|
Text::new(label),
|
|
TextFont {
|
|
font_size: 9.0,
|
|
..Default::default()
|
|
},
|
|
))
|
|
.id();
|
|
let container = commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
flex_direction: FlexDirection::Column,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
..Default::default()
|
|
})
|
|
.add_children(&[border_node, label_node])
|
|
.id();
|
|
commands.entity(root).add_child(container);
|
|
}
|
|
|
|
for (label, border) in border_labels.into_iter().zip(borders) {
|
|
let inner_spot = commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
width: Val::Px(10.),
|
|
height: Val::Px(10.),
|
|
..Default::default()
|
|
},
|
|
border_radius: BorderRadius::MAX,
|
|
background_color: YELLOW.into(),
|
|
..Default::default()
|
|
})
|
|
.id();
|
|
let non_zero = |x, y| x != Val::Px(0.) && y != Val::Px(0.);
|
|
let border_size = |x, y| if non_zero(x, y) { f32::MAX } else { 0. };
|
|
let border_radius = BorderRadius::px(
|
|
border_size(border.left, border.top),
|
|
border_size(border.right, border.top),
|
|
border_size(border.right, border.bottom),
|
|
border_size(border.left, border.bottom),
|
|
);
|
|
let border_node = commands
|
|
.spawn((
|
|
NodeBundle {
|
|
style: Style {
|
|
width: Val::Px(50.),
|
|
height: Val::Px(50.),
|
|
border,
|
|
margin: UiRect::all(Val::Px(20.)),
|
|
align_items: AlignItems::Center,
|
|
justify_content: JustifyContent::Center,
|
|
..Default::default()
|
|
},
|
|
background_color: MAROON.into(),
|
|
border_color: RED.into(),
|
|
border_radius,
|
|
..Default::default()
|
|
},
|
|
Outline {
|
|
width: Val::Px(6.),
|
|
offset: Val::Px(6.),
|
|
color: Color::WHITE,
|
|
},
|
|
))
|
|
.add_child(inner_spot)
|
|
.id();
|
|
let label_node = commands
|
|
.spawn((
|
|
Text::new(label),
|
|
TextFont {
|
|
font_size: 9.0,
|
|
..Default::default()
|
|
},
|
|
))
|
|
.id();
|
|
let container = commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
flex_direction: FlexDirection::Column,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
..Default::default()
|
|
})
|
|
.add_children(&[border_node, label_node])
|
|
.id();
|
|
commands.entity(root_rounded).add_child(container);
|
|
}
|
|
|
|
let border_label = commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
margin: UiRect {
|
|
left: Val::Px(25.0),
|
|
right: Val::Px(25.0),
|
|
top: Val::Px(25.0),
|
|
bottom: Val::Px(0.0),
|
|
},
|
|
..Default::default()
|
|
},
|
|
background_color: Color::srgb(0.25, 0.25, 0.25).into(),
|
|
..Default::default()
|
|
})
|
|
.with_children(|builder| {
|
|
builder.spawn((
|
|
Text::new("Borders"),
|
|
TextFont {
|
|
font_size: 20.0,
|
|
..Default::default()
|
|
},
|
|
));
|
|
})
|
|
.id();
|
|
|
|
let border_rounded_label = commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
margin: UiRect {
|
|
left: Val::Px(25.0),
|
|
right: Val::Px(25.0),
|
|
top: Val::Px(25.0),
|
|
bottom: Val::Px(0.0),
|
|
},
|
|
..Default::default()
|
|
},
|
|
background_color: Color::srgb(0.25, 0.25, 0.25).into(),
|
|
..Default::default()
|
|
})
|
|
.with_children(|builder| {
|
|
builder.spawn((
|
|
Text::new("Borders Rounded"),
|
|
TextFont {
|
|
font_size: 20.0,
|
|
..Default::default()
|
|
},
|
|
));
|
|
})
|
|
.id();
|
|
|
|
commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
margin: UiRect::all(Val::Px(25.0)),
|
|
flex_direction: FlexDirection::Column,
|
|
align_self: AlignSelf::Stretch,
|
|
justify_self: JustifySelf::Stretch,
|
|
flex_wrap: FlexWrap::Wrap,
|
|
justify_content: JustifyContent::FlexStart,
|
|
align_items: AlignItems::FlexStart,
|
|
align_content: AlignContent::FlexStart,
|
|
..Default::default()
|
|
},
|
|
background_color: Color::srgb(0.25, 0.25, 0.25).into(),
|
|
..Default::default()
|
|
})
|
|
.add_child(border_label)
|
|
.add_child(root)
|
|
.add_child(border_rounded_label)
|
|
.add_child(root_rounded);
|
|
}
|