def marker.resource

gralha-svg-render@0.1.0.1 · svg.bend:3047

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

3047def marker.resource(+result: Maybe<&2, XML.Element>, id: String, vertex: MarkerVertex, start: Bool, strokeWidth: F32, +w: F32, +h: F32) -> List<&2, XML.Element>:
3048  match result:
3049    case None{}: Nil{}
3050    case Some{XML.Element{n, as, kids, txt}}:
3051      MarkerVertex{Point{x, y}, angle} = vertex
3052      +width = dimension(as, "markerWidth", w, "3")
3053      +height = dimension(as, "markerHeight", h, "3")
3054      +view = U.numbers(XML.attr.get(as, "viewBox", ""))
3055      +vw = U.nth(view, 2n, width)
3056      +vh = U.nth(view, 3n, height)
3057      +unitScale = U.choose(F32, U.string.equal(XML.attr.get(as, "markerUnits", "strokeWidth"), "userSpaceOnUse"), 1.0, strokeWidth)
3058      +mat = matrix.mul(translate(x, y), matrix.mul(rotate(marker.orient(XML.attr.get(as, "orient", "0"), angle, start)), scale(unitScale, unitScale)))
3059      +ref = matrix.point(viewbox.matrix(view, width, height, XML.attr.get(as, "preserveAspectRatio", "xMidYMid meet")), Point{dimension(as, "refX", vw, "0"), dimension(as, "refY", vh, "0")})
3060      U.branch(List<&2, XML.Element>, U.string.equal(n, "marker") && F32.is_gt(width, 0.0) && F32.is_gt(height, 0.0) && F32.is_gt(vw, 0.0) && F32.is_gt(vh, 0.0) && F32.is_gt(unitScale, 0.0),
3061        _ => Con{XML.Element{"g", Con{XML.Attr{"transform", matrix.show(mat)}, Nil{}}, Con{XML.Element{"svg", Con{XML.Attr{"#marker-source", id}, Con{XML.Attr{"#editor-id", ""}, Con{XML.Attr{"transform", ""}, XML.attrs.append(marker.reference.point(ref, width, height), as)}}}, instance.anonymous(kids), txt}, Nil{}}, ""}, Nil{}}, _ => Nil{})