Struct PreviewAdapter 

pub struct PreviewAdapter { /* private fields */ }

An Engine plus a renderer, as seen by the preview session.

Implementations

impl PreviewAdapter

pub fn new(engine: Engine, renderer: Box<dyn Renderer>) -> Self

Wraps an engine; frames are drawn with renderer.

Trait Implementations

impl FrameSource for PreviewAdapter

fn fps(&self) -> u32

Frames per second.

fn size(&self) -> (u32, u32)

Native size in pixels.

fn total_frames(&self) -> u32

Length in frames.

fn render(&mut self, frame: u32, size: (u32, u32)) -> Image

Draws frame at size pixels (scaled to fit and centered).

impl PreviewEngine for PreviewAdapter

fn engine_version(&self) -> String

Version string sent in Ready.

fn scenes(&self) -> Vec<SceneInfo>

Scenes with their first frame and length.

fn markers(&self) -> Vec<MarkerInfo>

Markers of all scenes.

fn metas(&self) -> Vec<(String, Meta)>

Meta of every scene (sent on Ready so the editor knows eases and tunables).

fn edit(&mut self, edit: MetaEdit) -> Result<Vec<(String, Meta)>, String>

Applies an edit, re-simulates, persists the meta; returns changed metas as (scene, meta).

fn pick(&mut self, frame: u32, x: f64, y: f64) -> Option<u32>

Hit-test at frame pixels (top-left origin, project size).

fn tree(&mut self, frame: u32) -> Vec<NodeInfo>

Node tree of the scene at frame.

fn inspect( &mut self, frame: u32, node: u32, ) -> Option<(Vec<SignalValue>, [f64; 8])>

Signal values and selection box (frame pixels) of a node.

fn waveform(&mut self, buckets: usize) -> Option<Vec<f32>>

Audio peak envelope for the timeline, if the project has audio.