improved wire arguments

gallery/target_api.typ

@@ -1,5 +1,8 @@
 #import "../src/lib.typ": *
 #import "@preview/cetz:0.3.4": draw
+
+#set text(font: "Source Sans 3")
+
 #circuit({
   element.block(
     size: (1.5, 2.2),
@@ -10,14 +13,12 @@
       north: (id: "CLK", clock: true),
       east: "PC",
       south: (("EN", "EN"),)
-    ),
-    debug: (ports: true)
+    )
   )
   
   wire.stub("PCBuf.CLK", name: "CLK")
   wire.stub("PCBuf.EN", name: "PCWrite")
   
-  
   element.multiplexer(
     pos: (
       3, (align: "in0", with: "PCBuf.PC")
@@ -25,18 +26,18 @@
     size: (1, 2),
     id: "AdrSrc-MP",
     fill: util.colors.orange,
-    entries: 2,
-    debug: (ports: true)
+    entries: 2
   )
-  /*wire.wire(
+  wire.wire(
     "PCBuf.PC",
     "AdrSrc-MP.in0",
     id: "wPCBuf-InstDataMgr",
     name: "PC",
     bus: true
   )
-  wire.stub("AdrSrc-MP.north", name: "AdrSrc")
+  wire.stub("AdrSrc-MP.north", side: "north", name: "AdrSrc")
   
+  /*
   element.block(
     pos: (
       6, (align: "A", with: "AdrSrc-MP.out")

src/elements/element.typ

@@ -116,22 +116,29 @@
   return coord
 }
 
-#let make-bounds(elmt, x, y, w, h) = {
-  let w2 = w / 2
-  let h2 = h / 2
-  
-  let bounds = (
-    bl: (x, y),
-    tl: (x, y + h),
-    tr: (x + w, y + h),
-    br: (x + w, y),
-    center: (x + w2, y + h2),
-    b: (x + w2, y),
-    t: (x + w2, y + h),
-    l: (x, y + h2),
-    r: (x + w, y + h2),
-  )
+#let complete-bounds(elmt, bounds) = {
+  let b = bounds
   bounds += (
+    center: (
+      (b.br.at(0) + b.tl.at(0))/2,
+      (b.br.at(1) + b.tl.at(1))/2
+    ),
+    b: (
+      (b.br.at(0) + b.bl.at(0))/2,
+      (b.br.at(1) + b.bl.at(1))/2
+    ),
+    t: (
+      (b.tr.at(0) + b.tl.at(0))/2,
+      (b.tr.at(1) + b.tl.at(1))/2
+    ),
+    l: (
+      (b.bl.at(0) + b.tl.at(0))/2,
+      (b.bl.at(1) + b.tl.at(1))/2
+    ),
+    r: (
+      (b.br.at(0) + b.tr.at(0))/2,
+      (b.br.at(1) + b.tr.at(1))/2
+    ),
     sides: (
       north: (bounds.tl, bounds.tr),
       south: (bounds.bl, bounds.br),
@@ -160,6 +167,19 @@
   return bounds
 }
 
+#let make-bounds(elmt, x, y, w, h) = {
+  let w2 = w / 2
+  let h2 = h / 2
+  
+  let bounds = (
+    bl: (x, y),
+    tl: (x, y + h),
+    tr: (x + w, y + h),
+    br: (x + w, y),
+  )
+  return complete-bounds(elmt, bounds)
+}
+
 #let render(draw-shape, elmt) = draw.group(name: elmt.id, ctx => {
   let width = elmt.size.first()
   let height = elmt.size.last()

src/elements/multiplexer.typ

@@ -5,27 +5,33 @@
 
 #let draw-shape(elmt, bounds) = {
   let margin = (100% - elmt.l-ratio) / 2
-  let tr2 = (bounds.tr, margin, bounds.br)
-  let br2 = (bounds.br, margin, bounds.tr)
-  let f = draw.group(name: elmt.id, {
+  let tr2 = util.lerp(bounds.tr, margin, bounds.br)
+  let br2 = util.lerp(bounds.br, margin, bounds.tr)
+  let bounds2 = element.complete-bounds(elmt, (
+    tl: bounds.tl,
+    bl: bounds.bl,
+    tr: tr2,
+    br: br2,
+  ))
+  let f = {
     draw.merge-path(
       inset: 0.5em,
       fill: elmt.fill,
       stroke: elmt.stroke,
       close: true,
-      draw.line(bounds.tl, tr2, br2, bounds.bl)
+      draw.line(bounds2.tl, bounds2.tr, bounds2.br, bounds2.bl)
     )
-    draw.anchor("north", (bounds.tl, 50%, tr2))
-    draw.anchor("south", (bounds.bl, 50%, br2))
-    draw.anchor("west", (bounds.tl, 50%, bounds.bl))
-    draw.anchor("east", (tr2, 50%, br2))
-    draw.anchor("north-west", bounds.tl)
-    draw.anchor("north-east", tr2)
-    draw.anchor("south-east", br2)
-    draw.anchor("south-west", bounds.bl)
-  })
+    draw.anchor("north", bounds2.t)
+    draw.anchor("south", bounds2.b)
+    draw.anchor("west", bounds2.l)
+    draw.anchor("east", bounds2.r)
+    draw.anchor("north-west", bounds2.tl)
+    draw.anchor("north-east", bounds2.tr)
+    draw.anchor("south-east", bounds2.br)
+    draw.anchor("south-west", bounds2.bl)
+  }
 
-  return (f, bounds)
+  return (f, bounds2)
 }
 
 /// Draws a multiplexer

src/elements/ports.typ

@@ -9,7 +9,7 @@
       }
     }
   }
-  panic("Unknown port " + port + " on element " + element.id)
+  panic("Unknown port " + port + " on element " + elmt.id)
 }
 
 #let get-port-idx(elmt, port, side: auto) = {

src/util.typ

@@ -73,4 +73,11 @@
 #let valid-anchors = (
   "center", "north", "east", "west", "south",
   "north-east", "north-west", "south-east", "south-west"
-)
+)
+
+#let lerp(pt0, ratio, pt1) = {
+  return (
+    (pt1.at(0) - pt0.at(0)) * ratio / 100% + pt0.at(0),
+    (pt1.at(1) - pt0.at(1)) * ratio / 100% + pt0.at(1)
+  )
+}

src/wire.typ

@@ -130,10 +130,11 @@
 /// - dodge-sides (array): The start and end sides (going out of the connected element) of the wire (only with style "dodge")
 /// - dodge-margins (array): The start and end margins (i.e. space before dodging) of the wire (only with style "dodge")
 #let wire(
-  id, pts,
+  pt0,
+  pt1,
+  id: none,
   bus: false,
   name: none,
-  name-pos: "middle",
   slice: none,
   color: black,
   dashed: false,
@@ -145,15 +146,14 @@
   zigzag-dir: "vertical",
   dodge-y: 0,
   dodge-sides: ("east", "west"),
-  dodge-margins: (5%, 5%)
+  dodge-margins: (5%, 5%),
+  ..args
 ) = draw.get-ctx(ctx => {
   if not style in wire-styles {
     panic("Invalid wire style '" + style + "'")
   }
 
-  if pts.len() != 2 {
-    panic("Wrong number of points (got " + str(pts.len()) + " instead of 2)")
-  }
+  let pts = (pt0, pt1)
   
   let stroke = (
     paint: color,
@@ -218,7 +218,7 @@
     let names = ()
     
     if type(name) == str {
-      names = ((name, name-pos),)
+      names = ((name, "middle"),)
       
     } else if type(name) == array {
       names = (
@@ -228,6 +228,9 @@
     }
 
     for (name, pos) in names {
+      if name == none {
+        continue
+      }
       let point
       let anchor
       
@@ -269,7 +272,7 @@
 /// - vertical (bool): Whether the name should be displayed vertically
 /// - length (number): The length of the stub
 /// - name-offset (number): The name offset, perpendicular to the stub
-#let stub(anchor, name: none, vertical: false, length: 1em, name-offset: 0) = {
+#let stub(anchor, side: auto, name: none, vertical: false, length: 1em, name-offset: 0) = {
   if "." not in anchor {
     panic("`anchor` must be a valid anchor of an element")
   }
@@ -280,11 +283,14 @@
   let pre-process = (elements, elmt) => {
     let eid = elmt.id
 
-    if port-elmt-id not in elements {
-      panic("Unknown element " + port-elmt-id)
+    let side = side
+    if side == auto {
+      if port-elmt-id not in elements {
+        panic("Unknown element " + port-elmt-id)
+      }
+      let port-elmt = elements.at(port-elmt-id)
+      side = get-port-side(port-elmt, port-id)
     }
-    let port-elmt = elements.at(port-elmt-id)
-    let side = get-port-side(port-elmt, port-id)
     elements.at(eid).insert("side", side)
     return elements
   }