166686e0f2
# Objective The name `TextAlignment` is really deceptive and almost every new user gets confused about the differences between aligning text with `TextAlignment`, aligning text with `Style` and aligning text with anchor (when using `Text2d`). ## Solution * Rename `TextAlignment` to `JustifyText`. The associated helper methods are also renamed. * Improve the doc comments for text explaining explicitly how the `JustifyText` component affects the arrangement of text. * Add some extra cases to the `text_debug` example that demonstate the differences between alignment using `JustifyText` and alignment using `Style`. <img width="757" alt="text_debug_2" src="https://github.com/bevyengine/bevy/assets/27962798/9d53e647-93f9-4bc7-8a20-0d9f783304d2"> --- ## Changelog * `TextAlignment` has been renamed to `JustifyText` * `TextBundle::with_text_alignment` has been renamed to `TextBundle::with_text_justify` * `Text::with_alignment` has been renamed to `Text::with_justify` * The `text_alignment` field of `TextMeasureInfo` has been renamed to `justification` ## Migration Guide * `TextAlignment` has been renamed to `JustifyText` * `TextBundle::with_text_alignment` has been renamed to `TextBundle::with_text_justify` * `Text::with_alignment` has been renamed to `Text::with_justify` * The `text_alignment` field of `TextMeasureInfo` has been renamed to `justification`
92 lines
2.6 KiB
Rust
92 lines
2.6 KiB
Rust
//! Simple text rendering benchmark.
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//!
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//! Creates a `Text` with a single `TextSection` containing `100_000` glyphs,
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//! and renders it with the UI in a white color and with Text2d in a red color.
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//!
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//! To recompute all text each frame run
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//! `cargo run --example many_glyphs --release recompute-text`
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use bevy::{
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diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
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prelude::*,
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text::{BreakLineOn, Text2dBounds},
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window::{PresentMode, WindowPlugin, WindowResolution},
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};
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fn main() {
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let mut app = App::new();
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app.add_plugins((
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DefaultPlugins.set(WindowPlugin {
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primary_window: Some(Window {
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present_mode: PresentMode::AutoNoVsync,
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resolution: WindowResolution::new(1920.0, 1080.0).with_scale_factor_override(1.0),
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..default()
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}),
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..default()
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}),
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FrameTimeDiagnosticsPlugin,
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LogDiagnosticsPlugin::default(),
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))
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.add_systems(Startup, setup);
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if std::env::args().any(|arg| arg == "recompute-text") {
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app.add_systems(Update, force_text_recomputation);
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}
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app.run();
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}
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fn setup(mut commands: Commands) {
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warn!(include_str!("warning_string.txt"));
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commands.spawn(Camera2dBundle::default());
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let mut text = Text {
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sections: vec![TextSection {
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value: "0123456789".repeat(10_000),
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style: TextStyle {
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font_size: 4.,
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..default()
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},
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}],
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justify: JustifyText::Left,
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linebreak_behavior: BreakLineOn::AnyCharacter,
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};
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commands
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.spawn(NodeBundle {
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style: Style {
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width: Val::Percent(100.),
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align_items: AlignItems::Center,
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justify_content: JustifyContent::Center,
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..default()
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},
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..default()
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})
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.with_children(|commands| {
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commands.spawn(TextBundle {
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text: text.clone(),
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style: Style {
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width: Val::Px(1000.),
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..Default::default()
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},
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..Default::default()
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});
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});
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text.sections[0].style.color = Color::RED;
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commands.spawn(Text2dBundle {
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text,
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text_anchor: bevy::sprite::Anchor::Center,
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text_2d_bounds: Text2dBounds {
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size: Vec2::new(1000., f32::INFINITY),
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},
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..Default::default()
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});
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}
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fn force_text_recomputation(mut text_query: Query<&mut Text>) {
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for mut text in &mut text_query {
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text.set_changed();
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}
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}
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