mirror of
https://github.com/bevyengine/bevy
synced 2024-11-26 06:30:19 +00:00
e0c296ee14
> Follow up to #11600 and #10588 @mockersf expressed some [valid concerns](https://github.com/bevyengine/bevy/pull/11600#issuecomment-1932796498) about the current system this PR attempts to fix: The `ComputedTextureSlices` reacts to asset change in both `bevy_sprite` and `bevy_ui`, meaning that if the `ImageScaleMode` is inserted by default in the bundles, we will iterate through most 2d items every time an asset is updated. # Solution - `ImageScaleMode` only has two variants: `Sliced` and `Tiled`. I removed the `Stretched` default - `ImageScaleMode` is no longer part of any bundle, but the relevant bundles explain that this additional component can be inserted This way, the *absence* of `ImageScaleMode` means the image will be stretched, and its *presence* will include the entity to the various slicing systems Optional components in bundles would make this more straigthfoward # Additional work Should I add new bundles with the `ImageScaleMode` component ?
90 lines
3.4 KiB
Rust
90 lines
3.4 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::{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), (Changed<Interaction>, With<Button>)>,
|
|
mut text_query: Query<&mut Text>,
|
|
) {
|
|
for (interaction, children) 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();
|
|
}
|
|
Interaction::Hovered => {
|
|
text.sections[0].value = "Hover".to_string();
|
|
}
|
|
Interaction::None => {
|
|
text.sections[0].value = "Button".to_string();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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::rgb(0.9, 0.9, 0.9),
|
|
},
|
|
));
|
|
});
|
|
}
|
|
});
|
|
}
|