3360b45153
# Objective Adds a new `Monitor` component representing a winit `MonitorHandle` that can be used to spawn new windows and check for system monitor information. Closes #12955. ## Solution For every winit event, check available monitors and spawn them into the world as components. ## Testing TODO: - [x] Test plugging in and unplugging monitor during app runtime - [x] Test spawning a window on a second monitor by entity id - [ ] Since this touches winit, test all platforms --- ## Changelog - Adds a new `Monitor` component that can be queried for information about available system monitors. ## Migration Guide - `WindowMode` variants now take a `MonitorSelection`, which can be set to `MonitorSelection::Primary` to mirror the old behavior. --------- Co-authored-by: Pascal Hertleif <pascal@technocreatives.com> Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Pascal Hertleif <killercup@gmail.com>
103 lines
3.2 KiB
Rust
103 lines
3.2 KiB
Rust
//! Displays information about available monitors (displays).
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use bevy::render::camera::RenderTarget;
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use bevy::window::{ExitCondition, WindowMode, WindowRef};
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use bevy::{prelude::*, window::Monitor};
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins.set(WindowPlugin {
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primary_window: None,
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exit_condition: ExitCondition::DontExit,
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..default()
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}))
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.add_systems(Update, (update, close_on_esc))
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.run();
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}
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#[derive(Component)]
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struct MonitorRef(Entity);
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fn update(
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mut commands: Commands,
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monitors_added: Query<(Entity, &Monitor), Added<Monitor>>,
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mut monitors_removed: RemovedComponents<Monitor>,
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monitor_refs: Query<(Entity, &MonitorRef)>,
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) {
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for (entity, monitor) in monitors_added.iter() {
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// Spawn a new window on each monitor
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let name = monitor.name.clone().unwrap_or_else(|| "<no name>".into());
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let size = format!("{}x{}px", monitor.physical_height, monitor.physical_width);
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let hz = monitor
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.refresh_rate_millihertz
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.map(|x| format!("{}Hz", x as f32 / 1000.0))
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.unwrap_or_else(|| "<unknown>".into());
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let position = format!(
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"x={} y={}",
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monitor.physical_position.x, monitor.physical_position.y
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);
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let scale = format!("{:.2}", monitor.scale_factor);
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let window = commands
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.spawn((
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Window {
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title: name.clone(),
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mode: WindowMode::Fullscreen(MonitorSelection::Entity(entity)),
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position: WindowPosition::Centered(MonitorSelection::Entity(entity)),
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..default()
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},
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MonitorRef(entity),
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))
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.id();
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let camera = commands
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.spawn(Camera2dBundle {
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camera: Camera {
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target: RenderTarget::Window(WindowRef::Entity(window)),
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..default()
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},
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..default()
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})
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.id();
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let info_text = format!(
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"Monitor: {name}\nSize: {size}\nRefresh rate: {hz}\nPosition: {position}\nScale: {scale}\n\n",
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);
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commands.spawn((
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TextBundle::from_section(info_text, default()).with_style(Style {
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position_type: PositionType::Relative,
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height: Val::Percent(100.0),
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width: Val::Percent(100.0),
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..default()
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}),
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TargetCamera(camera),
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MonitorRef(entity),
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));
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}
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// Remove windows for removed monitors
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for monitor_entity in monitors_removed.read() {
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for (ref_entity, monitor_ref) in monitor_refs.iter() {
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if monitor_ref.0 == monitor_entity {
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commands.entity(ref_entity).despawn_recursive();
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}
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}
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}
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}
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fn close_on_esc(
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mut commands: Commands,
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focused_windows: Query<(Entity, &Window)>,
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input: Res<ButtonInput<KeyCode>>,
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) {
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for (window, focus) in focused_windows.iter() {
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if !focus.focused {
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continue;
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}
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if input.just_pressed(KeyCode::Escape) {
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commands.entity(window).despawn();
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}
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}
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}
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