DrawContext
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interface DrawContext
Object that provides the dependencies to support a DrawScope drawing environment. Namely this provides the drawing bounds represented as a size as well as the target Canvas to issue drawing commands into. Additionally the DrawContext handles updating Canvas state during transformations and updating the size of the drawing bounds that may occur during these transformations.
This exposes necessary internal state to the implementation of the DrawScope in order to support inline scoped transformation calls without allowing consumers of DrawScope to modify state directly thus maintaining the stateless API surface
Summary
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open Canvas |
The target canvas to issue drawing commands |
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open Density |
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open GraphicsLayer? |
Current |
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open LayoutDirection |
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Size |
The current size of the drawing environment |
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DrawTransform |
The controller for issuing transformations to the drawing environment |
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Public properties
density
open var density: Density
Density used to assist in conversions of density independent pixels to raw pixels to draw
graphicsLayer
open var graphicsLayer: GraphicsLayer?
Current GraphicsLayer we are drawing into. Might be null if the canvas is not provided by a GraphicsLayer, for example in the case of a software-accelerated drawing.
layoutDirection
open var layoutDirection: LayoutDirection
LayoutDirection of the layout being drawn in.
transform
val transform: DrawTransform
The controller for issuing transformations to the drawing environment