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//! Progress indicators view for the showcase application.
use bevy::prelude::*;
use bevy_material_ui::prelude::*;
use crate::showcase::common::*;
/// Spawn the progress section content
pub fn spawn_progress_section(parent: &mut ChildSpawnerCommands, theme: &MaterialTheme) {
parent
.spawn(Node {
flex_direction: FlexDirection::Column,
row_gap: Val::Px(16.0),
..default()
})
.with_children(|section| {
spawn_section_header(
section,
theme,
"showcase.section.progress.title",
"Progress Indicators",
"showcase.section.progress.description",
"Visual feedback for loading and progress states",
);
section
.spawn(Node {
flex_direction: FlexDirection::Column,
row_gap: Val::Px(16.0),
width: Val::Percent(100.0),
max_width: Val::Px(400.0),
margin: UiRect::vertical(Val::Px(8.0)),
..default()
})
.with_children(|col| {
// Animated determinate progress (oscillates up/down)
spawn_animated_linear_progress(col, theme, 0.15, 0.35);
spawn_animated_linear_progress(col, theme, 0.75, 0.55);
// Indeterminate example
col.spawn(Node {
flex_direction: FlexDirection::Row,
align_items: AlignItems::Center,
column_gap: Val::Px(12.0),
..default()
})
.with_children(|row| {
row.spawn((
Text::new(""),
LocalizedText::new("showcase.progress.indeterminate")
.with_default("Indeterminate"),
TextFont {
font_size: 12.0,
..default()
},
TextColor(theme.on_surface_variant),
Node {
width: Val::Px(90.0),
..default()
},
NeedsInternationalFont,
));
row.spawn(
LinearProgressBuilder::new()
.indeterminate()
.width(Val::Px(200.0))
.height_px(8.0)
.build(theme),
);
});
});
spawn_code_block(section, theme, include_str!("../../progress_demo.rs"));
});
}
/// Marker for progress bars animated by the showcase.
#[derive(Component, Clone, Copy)]
pub struct ShowcaseProgressOscillator {
pub speed: f32,
pub direction: f32,
pub label: Entity,
}
fn spawn_animated_linear_progress(
parent: &mut ChildSpawnerCommands,
theme: &MaterialTheme,
initial: f32,
speed: f32,
) {
parent
.spawn(Node {
flex_direction: FlexDirection::Row,
align_items: AlignItems::Center,
column_gap: Val::Px(12.0),
..default()
})
.with_children(|row| {
let label_entity = row
.spawn((
Text::new(format!(
"{:>3}%",
(initial.clamp(0.0, 1.0) * 100.0).round() as i32
)),
TextFont {
font_size: 12.0,
..default()
},
TextColor(theme.on_surface_variant),
Node {
width: Val::Px(48.0),
..default()
},
))
.id();
row.spawn((
ShowcaseProgressOscillator {
speed,
direction: 1.0,
label: label_entity,
},
LinearProgressBuilder::new()
.progress(initial)
.width(Val::Px(200.0))
.height_px(8.0)
.build(theme),
));
});
}