# Objective - Simplify API and make authoring styles easier See: https://github.com/bevyengine/bevy/issues/8540#issuecomment-1536177102 ## Solution - The `size`, `min_size`, `max_size`, and `gap` properties have been replaced by `width`, `height`, `min_width`, `min_height`, `max_width`, `max_height`, `row_gap`, and `column_gap` properties --- ## Changelog - Flattened `Style` properties that have a `Size` value directly into `Style` ## Migration Guide - The `size`, `min_size`, `max_size`, and `gap` properties have been replaced by the `width`, `height`, `min_width`, `min_height`, `max_width`, `max_height`, `row_gap`, and `column_gap` properties. Use the new properties instead. --------- Co-authored-by: ickshonpe <david.curthoys@googlemail.com>
		
			
				
	
	
		
			81 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
//! Demonstrates how to use transparency with UI.
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//! Shows two colored buttons with transparent text.
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use bevy::prelude::*;
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fn main() {
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    App::new()
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        .insert_resource(ClearColor(Color::BLACK))
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        .add_plugins(DefaultPlugins)
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        .add_systems(Startup, setup)
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        .run();
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}
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
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    commands.spawn(Camera2dBundle::default());
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    let font_handle = asset_server.load("fonts/FiraSans-Bold.ttf");
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    commands
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        .spawn(NodeBundle {
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            style: Style {
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                width: Val::Percent(100.0),
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                align_items: AlignItems::Center,
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                justify_content: JustifyContent::SpaceAround,
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                ..default()
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            },
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            ..default()
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        })
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        .with_children(|parent| {
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            parent
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                .spawn(ButtonBundle {
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                    style: Style {
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                        width: Val::Px(150.0),
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                        height: Val::Px(65.0),
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                        justify_content: JustifyContent::Center,
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                        align_items: AlignItems::Center,
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                        ..default()
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                    },
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                    background_color: Color::rgb(0.1, 0.5, 0.1).into(),
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                    ..default()
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                })
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                .with_children(|parent| {
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                    parent.spawn(TextBundle::from_section(
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                        "Button 1",
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                        TextStyle {
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                            font: font_handle.clone(),
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                            font_size: 40.0,
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                            // Alpha channel of the color controls transparency.
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                            color: Color::rgba(1.0, 1.0, 1.0, 0.2),
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                        },
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                    ));
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                });
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            // Button with a different color,
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            // to demonstrate the text looks different due to its transparency.
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            parent
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                .spawn(ButtonBundle {
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                    style: Style {
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                        width: Val::Px(150.0),
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                        height: Val::Px(65.0),
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                        justify_content: JustifyContent::Center,
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                        align_items: AlignItems::Center,
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                        ..default()
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                    },
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                    background_color: Color::rgb(0.5, 0.1, 0.5).into(),
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                    ..default()
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                })
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                .with_children(|parent| {
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                    parent.spawn(TextBundle::from_section(
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                        "Button 2",
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                        TextStyle {
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                            font: font_handle.clone(),
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                            font_size: 40.0,
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                            // Alpha channel of the color controls transparency.
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                            color: Color::rgba(1.0, 1.0, 1.0, 0.2),
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                        },
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                    ));
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                });
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        });
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}
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