mirror of
https://github.com/bevyengine/bevy
synced 2024-11-25 22:20:20 +00:00
e8ae0d6c49
# Objective Fixes https://github.com/bevyengine/bevy/issues/11157. ## Solution Stop using `BackgroundColor` as a color tint for `UiImage`. Add a `UiImage::color` field for color tint instead. Allow a UI node to simultaneously include a solid-color background and an image, with the image rendered on top of the background (this is already how it works for e.g. text).  --- ## Changelog - The `BackgroundColor` component now renders a solid-color background behind `UiImage` instead of tinting its color. - Removed `BackgroundColor` from `ImageBundle`, `AtlasImageBundle`, and `ButtonBundle`. - Added `UiImage::color`. - Expanded `RenderUiSystem` variants. - Renamed `bevy_ui::extract_text_uinodes` to `extract_uinodes_text` for consistency. ## Migration Guide - `BackgroundColor` no longer tints the color of UI images. Use `UiImage::color` for that instead. - For solid color buttons, replace `ButtonBundle { background_color: my_color.into(), ... }` with `ButtonBundle { image: UiImage::default().with_color(my_color), ... }`, and update button interaction systems to use `UiImage::color` instead of `BackgroundColor` as well. - `bevy_ui::RenderUiSystem::ExtractNode` has been split into `ExtractBackgrounds`, `ExtractImages`, `ExtractBorders`, and `ExtractText`. - `bevy_ui::extract_uinodes` has been split into `bevy_ui::extract_uinode_background_colors` and `bevy_ui::extract_uinode_images`. - `bevy_ui::extract_text_uinodes` has been renamed to `extract_uinode_text`.
100 lines
3.6 KiB
Rust
100 lines
3.6 KiB
Rust
//! This example illustrates how to create a button that has its image sliced
|
|
//! and kept in proportion instead of being stretched by the button dimensions
|
|
|
|
use bevy::{
|
|
color::palettes::css::{GOLD, ORANGE},
|
|
prelude::*,
|
|
winit::WinitSettings,
|
|
};
|
|
|
|
fn main() {
|
|
App::new()
|
|
.add_plugins(DefaultPlugins)
|
|
// Only run the app when there is user input. This will significantly reduce CPU/GPU use.
|
|
.insert_resource(WinitSettings::desktop_app())
|
|
.add_systems(Startup, setup)
|
|
.add_systems(Update, button_system)
|
|
.run();
|
|
}
|
|
|
|
fn button_system(
|
|
mut interaction_query: Query<
|
|
(&Interaction, &Children, &mut UiImage),
|
|
(Changed<Interaction>, With<Button>),
|
|
>,
|
|
mut text_query: Query<&mut Text>,
|
|
) {
|
|
for (interaction, children, mut image) in &mut interaction_query {
|
|
let mut text = text_query.get_mut(children[0]).unwrap();
|
|
match *interaction {
|
|
Interaction::Pressed => {
|
|
text.sections[0].value = "Press".to_string();
|
|
image.color = GOLD.into();
|
|
}
|
|
Interaction::Hovered => {
|
|
text.sections[0].value = "Hover".to_string();
|
|
image.color = ORANGE.into();
|
|
}
|
|
Interaction::None => {
|
|
text.sections[0].value = "Button".to_string();
|
|
image.color = Color::WHITE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
|
|
let image = asset_server.load("textures/fantasy_ui_borders/panel-border-010.png");
|
|
|
|
let slicer = TextureSlicer {
|
|
border: BorderRect::square(22.0),
|
|
center_scale_mode: SliceScaleMode::Stretch,
|
|
sides_scale_mode: SliceScaleMode::Stretch,
|
|
max_corner_scale: 1.0,
|
|
};
|
|
// ui camera
|
|
commands.spawn(Camera2dBundle::default());
|
|
commands
|
|
.spawn(NodeBundle {
|
|
style: Style {
|
|
width: Val::Percent(100.0),
|
|
height: Val::Percent(100.0),
|
|
align_items: AlignItems::Center,
|
|
justify_content: JustifyContent::Center,
|
|
..default()
|
|
},
|
|
..default()
|
|
})
|
|
.with_children(|parent| {
|
|
for [w, h] in [[150.0, 150.0], [300.0, 150.0], [150.0, 300.0]] {
|
|
parent
|
|
.spawn((
|
|
ButtonBundle {
|
|
style: Style {
|
|
width: Val::Px(w),
|
|
height: Val::Px(h),
|
|
// horizontally center child text
|
|
justify_content: JustifyContent::Center,
|
|
// vertically center child text
|
|
align_items: AlignItems::Center,
|
|
margin: UiRect::all(Val::Px(20.0)),
|
|
..default()
|
|
},
|
|
image: image.clone().into(),
|
|
..default()
|
|
},
|
|
ImageScaleMode::Sliced(slicer.clone()),
|
|
))
|
|
.with_children(|parent| {
|
|
parent.spawn(TextBundle::from_section(
|
|
"Button",
|
|
TextStyle {
|
|
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
|
|
font_size: 40.0,
|
|
color: Color::srgb(0.9, 0.9, 0.9),
|
|
},
|
|
));
|
|
});
|
|
}
|
|
});
|
|
}
|