def text.layout

gralha-svg-render@0.1.0.1 · svg.bend:3524

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
import gralha-css-style@0.1.0.1/css.bend as CSS

3524def text.layout(+xs: List<&2, XML.Element>, +font: TextFont, +frames: List<&2, TextFrame>, +cursor: TextCursor, +w: F32, +h: F32, +onPath: Bool) -> TextLayout:
3525  match xs:
3526    case Nil{}: TextLayout{Nil{}, cursor}
3527    case Con{XML.Element{n, attrs, kids, txt}, rest}:
3528      +as = CSS.properties(attrs)
3529      +childFont = text.font.inherit(font, as)
3530      text.layout.then(U.branch(TextLayout, U.string.equal(n, "#text"), _ => text.characters(txt, font, U.choose(List<&2, TextFrame>, onPath, text.path.frames(frames), frames), cursor),
3531        _ => U.branch(TextLayout, U.string.equal(n, "textPath") && Bool.not(U.string.equal(XML.attr.get(as, "display", ""), "none")),
3532          _ => text.path.layout(as, text.length(text.layout(kids, childFont, frames, text.path.begin(cursor), w, h, True{}), as, w, text.font.em(childFont), False{}), text.font.em(childFont)),
3533        _ => U.branch(TextLayout, (U.string.equal(n, "tspan") || U.string.equal(n, "a")) && Bool.not(U.string.equal(XML.attr.get(as, "display", ""), "none")),
3534          _ => text.layout.group(as, text.length(text.layout(kids, childFont, Con{text.frame(as, text.index(cursor), w, h, text.font.em(childFont)), frames}, cursor, w, h, onPath), as, w, text.font.em(childFont), False{})),
3535          _ => TextLayout{Nil{}, cursor}))),
3536        next => text.layout(rest, font, frames, next, w, h, onPath))