Trait AppExt 

pub trait AppExt {
    // Required methods
    fn add_scene(&mut self, scene: Scene) -> &mut Self;
    fn scenes(&self) -> &[Scene];
    fn scene(&self, name: &str) -> Option<Scene>;

    // Provided methods
    fn add_scenes(
        &mut self,
        scenes: impl IntoIterator<Item = Scene>,
    ) -> &mut Self { ... }
    fn first_scene(&self) -> Option<Scene> { ... }
}

Scene registration and selection for a project App.

Required Methods

fn add_scene(&mut self, scene: Scene) -> &mut Self

Register a scene without running its constructor.

Panics

Panics if a scene with the same name is already registered.

fn scenes(&self) -> &[Scene]

Return the scene descriptions in registration order.

fn scene(&self, name: &str) -> Option<Scene>

Select a scene by name, cloning its descriptor.

Provided Methods

fn add_scenes(&mut self, scenes: impl IntoIterator<Item = Scene>) -> &mut Self

Register scenes in iteration order.

Panics

Panics if any scene name is already registered, including duplicate names within this collection.

fn first_scene(&self) -> Option<Scene>

Select the first registered scene, if the project has any scenes.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl AppExt for App