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DisplayListBuilder

Struct DisplayListBuilder 

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pub struct DisplayListBuilder { /* private fields */ }
Expand description

Builder for constructing a display list incrementally.

Chrome equivalent: PaintController (the state machine that tracks current property state and builds chunks).

§Usage

let mut builder = DisplayList::builder();
builder.push(DisplayItem::Draw(DrawCommand::Rect { ... }));
builder.push_state(new_property_state);
builder.push(DisplayItem::Draw(DrawCommand::Text { ... }));
let display_list = builder.finish();

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impl DisplayListBuilder

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pub fn new() -> Self

Create a new builder with root property state.

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pub fn push(&mut self, item: DisplayItem)

Push a display item into the current chunk.

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pub fn set_state(&mut self, state: PropertyState)

Change the property state, starting a new chunk if different.

Chrome equivalent: PaintController::UpdateCurrentPaintChunkProperties().

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pub fn finish(self) -> DisplayList

Finish building and return the display list.

Trait Implementations§

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impl Default for DisplayListBuilder

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fn default() -> Self

Returns the “default value” for a type. Read more

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const ALIGN: usize

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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