def filter.matrix.parse
gralha-svg-render@0.1.0.1 · svg.bend:4489
import gralha-svg-render@0.1.0.1/svg.bend as Svg
import Base
import gralha-text-scan@0.1.0.1/scan.bend as U
import gralha-xml-doc@0.1.0.1/xml.bend as XML
4489def filter.matrix.parse(+as: List<&2, XML.Attr>) -> ColorMatrix:
4490 +kind = XML.attr.get(as, "type", "matrix")
4491 +vs = U.numbers(XML.attr.get(as, "values", ""))
4492 U.branch(ColorMatrix, U.string.equal(kind, "saturate"), _ => filter.matrix.saturate(U.nth(vs, 0n, 1.0)),
4493 _ => U.branch(ColorMatrix, U.string.equal(kind, "hueRotate"), _ => filter.matrix.hue(U.nth(vs, 0n, 0.0)),
4494 _ => U.branch(ColorMatrix, U.string.equal(kind, "luminanceToAlpha"), _ => ColorMatrix{ColorRow{0.0, 0.0, 0.0, 0.0, 0.0}, ColorRow{0.0, 0.0, 0.0, 0.0, 0.0}, ColorRow{0.0, 0.0, 0.0, 0.0, 0.0}, ColorRow{0.2125, 0.7154, 0.0721, 0.0, 0.0}},
4495 _ => U.choose(ColorMatrix, U32.is_eq(floats.count(vs), 20), ColorMatrix{filter.matrix.row(vs, 0, 0), filter.matrix.row(vs, 5, 1), filter.matrix.row(vs, 10, 2), filter.matrix.row(vs, 15, 3)}, filter.matrix.identity()))))