@shopify/react-native-skia
Version:
High-performance React Native Graphics using Skia
36 lines • 1.12 kB
JavaScript
import { VertexMode, BlendMode } from "../../../skia/types";
import { NodeType } from "../../types";
import { enumKey } from "../datatypes";
import { JsiDrawingNode } from "../DrawingNode";
export class VerticesNode extends JsiDrawingNode {
constructor(ctx, props) {
super(ctx, NodeType.Vertices, props);
}
deriveProps() {
const {
mode,
vertices,
textures,
colors,
indices
} = this.props;
const vertexMode = mode ? VertexMode[enumKey(mode)] : VertexMode.Triangles;
return this.Skia.MakeVertices(vertexMode, vertices, textures, colors ? colors.map(c => this.Skia.Color(c)) : undefined, indices);
}
draw({
canvas,
paint
}) {
const {
colors,
blendMode
} = this.props;
const defaultBlendMode = colors ? BlendMode.DstOver : BlendMode.SrcOver;
const blend = blendMode ? BlendMode[enumKey(blendMode)] : defaultBlendMode;
if (this.derived === undefined) {
throw new Error("VerticesNode: vertices is undefined");
}
canvas.drawVertices(this.derived, blend, paint);
}
}
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