ParagraphLayouter

The purpose of this class is to store already built paragraph and pass it between different internal entities (from SkiaParagraphIntrinsics to SkiaParagraph).

An alternative to passing and reusing existed paragraph is to build it again, but it is 2.5x slower.

LayoutedParagraph should has only one owner to avoid concurrent usage.

Tests:

val text = (1..100000).joinToString(" ") reusedParagraph.layout(300f): 116.848500ms builder.build().layout(300f): 288.302300ms

text = (1..10000).joinToString(" ") reusedParagraph.layout(300f): 10.004400ms builder.build().layout(300f): 23.421500ms

Summary

ParagraphLayouter(
    text: String,
    textDirection: ResolvedTextDirection,
    style: TextStyle,
    spanStyles: List<AnnotatedString.Range<SpanStyle>>,
    placeholders: List<AnnotatedString.Range<Placeholder>>,
    density: Density,
    fontFamilyResolver: FontFamily.Resolver
)

fun layoutParagraph(
    width: Float = this.width,
    maxLines: Int = builder.maxLines,
    ellipsis: String = builder.ellipsis,
    color: Color = builder.textStyle.color,
    shadow: Shadow? = builder.textStyle.shadow,
    textDecoration: TextDecoration? = builder.textStyle.textDecoration
): Paragraph

val defaultHeight: Float

val text: String