Struct Scene 

pub struct Scene { /* private fields */ }

Batched draw list assembled each frame before it is handed to Pane::render.

Widgets append geometry via the push_* / text* methods. The renderer sorts by z, uploads all vertices in one write, then issues draw calls. Call Scene::clear at the start of each frame to reuse the allocation.

Implementations

impl Scene

pub const fn new() -> Self

Create an empty scene.

pub fn push_full( &mut self, verts: Vec<[f32; 2]>, shader: ShaderId, color: Color, z: f32, clip: Option<ClipRect>, corner_radius: f32, )

Push a plain geometry batch (no border, no widget state).

Shorthand for push_widget with border_width = 0 and state = [0; 4].

pub fn push_widget( &mut self, verts: Vec<[f32; 2]>, shader: ShaderId, color: Color, z: f32, clip: Option<ClipRect>, corner_radius: f32, border_width: f32, state: [f32; 4], )

Push a widget geometry batch with full control over all vertex attributes.

state is passed through to the shader as @location(5): [hovered, pressed, focused, disabled], each 0.0 or 1.0.

pub fn push_image( &mut self, rect: Rect, shader: ShaderId, texture: TextureId, z: f32, clip: Option<ClipRect>, )

Push a textured quad using the full texture (UV 0,0 → 1,1).

pub fn push_image_uv( &mut self, rect: Rect, shader: ShaderId, texture: TextureId, depth: f32, clip: Option<ClipRect>, uv_rect: Option<UvRect>, )

Push a textured quad with an optional sub-rect UV override (for sprite sheets / GIF frames).

pub fn text( &mut self, text: &str, x: f32, y: f32, w: f32, size: f32, color: Color, )

Draw center-aligned text in a box of width w at grid position (x, y).

pub fn text_left(&mut self, text: &str, x: f32, y: f32, size: f32, color: Color)

Draw left-aligned text starting at grid position (x, y) with no width constraint.

pub fn clear(&mut self)

Discard all queued geometry and text — call at the start of each frame.

pub const fn is_empty(&self) -> bool

Return true if no geometry or text has been queued this frame.

Trait Implementations

impl Default for Scene

fn default() -> Self

Returns the “default value” for a type.