Struct TransformLayerEntry 

pub struct TransformLayerEntry {
    pub picture: Picture,
    pub child_size: Size,
    pub viewport_rect: Rect,
    pub zoom: f32,
    pub scroll_x: f32,
    pub scroll_y: f32,
}

A captured TransformLayer — child content recorded into a separate Picture (D087) that the platform replays into its own SkiaCanvas and presents as an additional GPU compositor layer (D088).

Fields

picture: Picture

Recorded child draw commands — replay-able independently of the main pass.

child_size: Size

Natural (unconstrained) size of the child content in logical pixels.

viewport_rect: Rect

Viewport rect in screen-space logical pixels.

zoom: f32

Content magnification factor — 1.0 for ordinary scrolling (all existing consumers). InteractiveViewer (Phase 32) is the only consumer that varies this: the offscreen content texture is rasterized at dpi_scale * zoom (engine.rs), so the compositor’s existing UV-window math (uv_span = dest / tex_size) naturally samples a smaller fraction of a bigger texture — real GPU-crisp zoom with no compositor changes. Screen<->content coordinate remap (child_coords/content_to_screen) must divide/multiply by this.

scroll_x: f32

Current horizontal scroll in logical pixels.

scroll_y: f32

Current vertical scroll in logical pixels.

Trait Implementations

impl Clone for TransformLayerEntry

fn clone(&self) -> TransformLayerEntry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.