forked from HEL/circuiteria
98 lines
2.5 KiB
Typst
98 lines
2.5 KiB
Typst
#import "@preview/cetz:0.3.2": draw
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#import "../util.typ"
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#import "element.typ"
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#import "ports.typ": add-port
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#let draw-shape(id, tl, tr, br, bl, fill, stroke, h-ratio: 60%) = {
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let margin = (100% - h-ratio) / 2
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let tr2 = (tr, margin, br)
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let br2 = (br, margin, tr)
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let f = draw.group(name: id, {
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draw.merge-path(
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inset: 0.5em,
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fill: fill,
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stroke: stroke,
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close: true,
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draw.line(tl, tr2, br2, bl)
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)
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draw.anchor("north", (tl, 50%, tr2))
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draw.anchor("south", (bl, 50%, br2))
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draw.anchor("west", (tl, 50%, bl))
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draw.anchor("east", (tr2, 50%, br2))
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draw.anchor("north-west", tl)
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draw.anchor("north-east", tr2)
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draw.anchor("south-east", br2)
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draw.anchor("south-west", bl)
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})
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return (f, tl, tr, br, bl)
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}
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/// Draws a multiplexer
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///
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/// #examples.multiplexer
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/// For other parameters description, see #doc-ref("element.elmt")
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/// - entries (int, array): If it is an integer, it defines the number of input ports (automatically named with their binary index). If it is an array of strings, it defines the name of each input.
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/// - h-ratio (ratio): The height ratio of the right side relative to the full height
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#let multiplexer(
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x: none,
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y: none,
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w: none,
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h: none,
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name: none,
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name-anchor: "center",
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entries: 2,
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h-ratio: 60%,
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fill: none,
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stroke: black + 1pt,
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id: "",
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debug: (
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ports: false
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)
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) = {
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let ports = ()
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let ports-y = (
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out: (h) => {h * 0.5}
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)
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if (type(entries) == int) {
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let nbits = calc.ceil(calc.log(entries, base: 2))
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for i in range(entries) {
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let bits = util.lpad(str(i, base: 2), nbits)
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ports.push((id: "in" + str(i), name: bits))
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}
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} else {
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for (i, port) in entries.enumerate() {
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ports.push((id: "in" + str(i), name: port))
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}
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}
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let space = 100% / ports.len()
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let l = ports.len()
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for (i, port) in ports.enumerate() {
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ports-y.insert(port.id, (h) => {h * (i + 0.5) / l})
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}
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element.elmt(
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draw-shape: draw-shape.with(h-ratio: h-ratio),
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x: x,
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y: y,
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w: w,
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h: h,
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name: name,
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name-anchor: name-anchor,
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ports: (west: ports, east: ((id: "out"),)),
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fill: fill,
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stroke: stroke,
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id: id,
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ports-y: ports-y,
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auto-ports: false,
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debug: debug
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)
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for (i, port) in ports.enumerate() {
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let pct = (i + 0.5) * space
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add-port(id, "west", port, (id+".north-west", pct, id+".south-west"))
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}
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add-port(id, "east", (id: "out"), (id+".north-east", 50%, id+".south-east"))
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} |