feat: add port-name-padding parameter

Replaces the hard-coded 2pt padding used when placing port name labels.
Configurable per element via port-name-padding on elmt (forwarded by
block and group), defaulting to 2pt to preserve existing layout.

README.md

@@ -3,7 +3,7 @@
 Circuiteria is a [Typst](https://typst.app) package for drawing block circuit diagrams using the [CeTZ](https://typst.app/universe/package/cetz) package.
 
 <p align="center">
-  <img src="./gallery/platypus.png" alt="Perry the platypus">
+  <img src="./gallery/platypus.png" alt="A platypus / Perry the Platypus meme made with colored rounded rectangles">
 </p>
 
 ## Examples
@@ -11,17 +11,17 @@ Circuiteria is a [Typst](https://typst.app) package for drawing block circuit di
   <tr>
     <td colspan="2">
       <a href="./gallery/test.typ">
-        <img src="./gallery/test.png" width="500px">
+        <img src="./gallery/test.png" width="500px" alt="Block diagram of a multi-cycle RISC-V FPGA processor">
       </a>
     </td>
   </tr>
   <tr>
-    <td colspan="2">A bit of eveything</td>
+    <td colspan="2">A bit of everything</td>
   </tr>
   <tr>
     <td colspan="2">
       <a href="./gallery/test5.typ">
-        <img src="./gallery/test5.png" width="500px">
+        <img src="./gallery/test5.png" width="500px" alt="Block diagram of a single-cycle RISC-V processor">
       </a>
     </td>
   </tr>
@@ -31,12 +31,12 @@ Circuiteria is a [Typst](https://typst.app) package for drawing block circuit di
   <tr>
     <td>
       <a href="./gallery/test4.typ">
-        <img src="./gallery/test4.png" width="250px">
+        <img src="./gallery/test4.png" width="250px" alt="Top-level block diagram of a single-cycle RISC-V processor">
       </a>
     </td>
     <td>
       <a href="./gallery/test6.typ">
-        <img src="./gallery/test6.png" width="250px">
+        <img src="./gallery/test6.png" width="250px" alt="Block diagram of a simple single-cycle RISC-V ALU">
       </a>
     </td>
   </tr>
@@ -56,7 +56,7 @@ For more information, see the [manual](manual.pdf)
 
 To use this package, simply import [circuiteria](https://typst.app/universe/package/circuiteria) and call the `circuit` function:
 ```typ
-#import "@preview/circuiteria:0.2.0"
+#import "@preview/circuiteria:0.2.1"
 #circuiteria.circuit({
   import circuiteria: *
   ...

doc/examples.typ

@@ -186,6 +186,48 @@ wire.wire("w2", ("b2-port-out", "b3-port-in2"),
           style: "zigzag")
 ```)
 
+#let group-ports = example(```
+// outside-port-names: true (default) — labels outside the border
+element.group(
+  id: "g1", name: "outside (default)",
+  stroke: (dash: "dashed"),
+  fill: util.colors.blue.lighten(60%),
+  padding: 2em,
+  outside-port-names: true,
+  port-name-padding: 4pt,
+  ports: (
+    west:  ((id: "in",  name: "D"),),
+    east:  ((id: "out", name: "Q"),),
+  ),
+  { element.block(id: "b1", w: 2, h: 1.5, x: 0, y: 0,
+      fill: util.colors.green,
+      ports: (west: ((id: "d", name: "d"),),
+              east: ((id: "q", name: "q"),))) }
+)
+wire.wire("wG1in",  ("g1-port-in", "b1-port-d"), directed: true)
+wire.wire("wG1out", ("b1-port-q",  "g1-port-out"), directed: true)
+
+// outside-port-names: false — labels inside the border (block style)
+// with extra padding via port-name-padding
+element.group(
+  id: "g2", name: "inside",
+  stroke: (dash: "dashed"),
+  fill: util.colors.orange.lighten(60%),
+  padding: 2em,
+  outside-port-names: false,
+  port-name-padding: 0.4em,
+  ports: (
+    west:  ((id: "in",  name: "D"),),
+    east:  ((id: "out", name: "Q"),),
+  ),
+  { element.block(id: "b2", w: 2, h: 1.5, x: 6, y: 0,
+      fill: util.colors.green,
+      ports: (west: ((id: "d"),), east: ((id: "q"),))) }
+)
+wire.stub("g2-port-in",  "west")
+wire.stub("g2-port-out", "east")
+```, vertical: true)
+
 #let intersection = example(```
 wire.wire("w1", ((0, 0), (1, 1)), style: "zigzag")
 wire.wire("w2", ((0, 0), (1, -.5)),

gallery/platypus.typ

@@ -1,4 +1,4 @@
-#import "../src/lib.typ": *
+#import "@preview/circuiteria:0.2.1": *
 
 #set page(width: auto, height: auto, margin: .5cm)
 

gallery/test.typ

@@ -1,4 +1,4 @@
-#import "../src/lib.typ": circuit, element, util, wire
+#import "@preview/circuiteria:0.2.1": circuit, element, util, wire
 
 #set page(width: auto, height: auto, margin: .5cm)
 

gallery/test2.typ

@@ -1,4 +1,4 @@
-#import "../src/lib.typ": circuit, element, util, wire
+#import "@preview/circuiteria:0.2.1": circuit, element, util, wire
 
 #set page(width: auto, height: auto, margin: .5cm)
 

gallery/test3.typ

@@ -1,4 +1,4 @@
-#import "../src/lib.typ": circuit, element, util, wire
+#import "@preview/circuiteria:0.2.1": circuit, element, util, wire
 
 #set page(width: auto, height: auto, margin: .5cm)
 

gallery/test4.typ

@@ -1,5 +1,5 @@
 #import "/src/cetz.typ": draw
-#import "../src/lib.typ": *
+#import "@preview/circuiteria:0.2.1": *
 
 #set page(width: auto, height: auto, margin: .5cm)
 

gallery/test5.typ

@@ -1,5 +1,5 @@
 #import "/src/cetz.typ": draw
-#import "../src/lib.typ": *
+#import "@preview/circuiteria:0.2.1": *
 
 #set page(width: auto, height: auto, margin: .5cm)
 

gallery/test6.typ

@@ -1,5 +1,5 @@
 #import "/src/cetz.typ": draw
-#import "../src/lib.typ": *
+#import "@preview/circuiteria:0.2.1": *
 
 #set page(width: auto, height: auto, margin: .5cm)
 

gallery/test7.typ

@@ -1,4 +1,4 @@
-#import "../src/lib.typ": circuit, element, util, wire
+#import "@preview/circuiteria:0.2.1": circuit, element, util, wire
 
 #set page(width: auto, height: auto, margin: .5cm)
 

gallery/test_group_ports.typ

@@ -0,0 +1,86 @@
+// Demonstrates ports on a group element.
+// outside-port-names: true  (default) — labels outside the group border
+// outside-port-names: false           — labels inside  (block-style)
+#import "/src/lib.typ": circuit, element, util, wire
+
+#set page(width: auto, height: auto, margin: .5cm)
+
+#circuit({
+  // --- Group with port labels INSIDE (outside-port-names: false) ---
+  element.group(
+    id: "cpu",
+    name: "CPU (labels outside)",
+    name-anchor: "north",
+    stroke: (dash: "dashed"),
+    fill: util.colors.yellow.lighten(60%),
+    padding: 1em,
+    port-name-padding: .5em,
+    outside-port-names: true,
+    ports: (
+      west: (
+        (id: "in1", name: "D1"),
+        (id: "in2", name: "D2"),
+      ),
+      east: ((id: "out", name: "Q"),),
+      south: (
+        (id: "rst", name: "RST", vertical: true),
+        (id: "done", name: "DONE", vertical: true),
+      ),
+    ),
+    {
+      element.block(
+        id: "reg2",
+        w: 2.5,
+        h: 3,
+        x: 0,
+        y: 0,
+        fill: util.colors.green,
+        ports: (
+          west: ((id: "d1"), (id: "d2")),
+          east: ((id: "q"),),
+          north: ((id: "clk", clock: true),),
+        ),
+      )
+    },
+  )
+  // --- Group with port labels INSIDE (outside-port-names: false) ---
+  element.group(
+    id: "cpu2",
+    name: "CPU (labels inside)",
+    name-anchor: "north",
+    stroke: (dash: "dashed"),
+    fill: util.colors.yellow.lighten(60%),
+    padding: 4em,
+    outside-port-names: false,
+    port-name-padding: 0.5em,
+    ports: (
+      west: (
+        (id: "in1", name: "D1"),
+        (id: "in2", name: "D2"),
+      ),
+      east: ((id: "out", name: "Q"),),
+      south: (
+        (id: "rst", name: "RST", vertical: true),
+        (id: "done", name: "DONE", vertical: true),
+      ),
+    ),
+    {
+      element.block(
+        id: "reg2",
+        w: 2.5,
+        h: 3,
+        x: 10,
+        y: 0,
+        fill: util.colors.green,
+        ports: (
+          west: ((id: "d1"), (id: "d2")),
+          east: ((id: "q"),),
+          north: ((id: "clk", clock: true),),
+        ),
+      )
+    },
+  )
+  wire.stub("cpu2-port-in1", "west", name: "A")
+  wire.stub("cpu2-port-in2", "west", name: "B")
+  wire.stub("cpu2-port-out", "east", name: "Q")
+})

manual.typ

@@ -1,4 +1,4 @@
-#import "@preview/tidy:0.4.1"
+#import "@preview/tidy:0.4.3"
 #import "/src/cetz.typ": draw, canvas
 #import "src/lib.typ"
 #import "doc/examples.typ"
@@ -105,7 +105,7 @@ This package provides a way to make beautiful block circuit diagrams using the C
 
 Simply import Circuiteria and call the `circuit` function:
 #pad(left: 1em)[```typ
-#import "@preview/circuiteria:0.2.0"
+#import "@preview/circuiteria:0.2.1"
 #circuiteria.circuit({
   import circuiteria: *
   ...

src/cetz.typ

@@ -1 +1 @@
-#import "@preview/cetz:0.3.4": *
+#import "@preview/cetz:0.5.2": *

src/circuit.typ

@@ -1,5 +1,5 @@
 #import "/src/cetz.typ": canvas
-#import "@preview/tidy:0.3.0"
+#import "@preview/tidy:0.4.3"
 
 /// Draws a block circuit diagram
 ///

src/elements/block.typ

@@ -27,6 +27,7 @@
   name-anchor: "center",
   ports: (),
   ports-margins: (),
+  port-name-padding: 2pt,
   fill: none,
   radius: 0.5em,
   stroke: black + 1pt,
@@ -44,6 +45,7 @@
   name-anchor: name-anchor,
   ports: ports,
   ports-margins: ports-margins,
+  port-name-padding: port-name-padding,
   fill: fill,
   stroke: stroke,
   id: id,

src/elements/element.typ

@@ -35,6 +35,7 @@
 ///   - `clock` (`bool`): Whether it is a clock port (triangle symbol)
 ///   - `vertical` (`bool`): Whether the name should be drawn vertically
 /// - ports-margins (dictionary): Dictionary of ports margins (used with automatic port placement). They keys are cardinal directions ("north", "east", "south", "west"). The values are tuples of (`<start>`, `<end>`) margins (numbers)
+/// - port-name-padding (number, length): Padding between the port name label and the port anchor point (default `2pt`)
 /// - fill (none, color): Fill color
 /// - stroke (stroke): Border stroke
 /// - id (str): The block id (for future reference)
@@ -54,6 +55,7 @@
   name-anchor: "center",
   ports: (:),
   ports-margins: (:),
+  port-name-padding: 2pt,
   fill: none,
   stroke: black + 1pt,
   id: "",
@@ -139,7 +141,8 @@
       tl, tr, br, bl,
       ports,
       ports-margins,
-      debug: debug.ports
+      debug: debug.ports,
+      name-padding: port-name-padding,
     )
   }
 })

src/elements/group.typ

@@ -1,9 +1,15 @@
 #import "/src/cetz.typ": draw, coordinate
 #import "../util.typ"
+#import "ports.typ": add-ports
 
 /// Draws a group of elements
 ///
 /// #examples.group
+///
+/// Ports can also be defined on a group, just like on a block. By default
+/// port labels are drawn *outside* the group border so they do not overlap
+/// child elements. Set `outside-port-names: false` to draw them inside.
+/// #examples.group-ports
 /// - body (elements, function): Elements to group
 /// - id (str): see #doc-ref("element.elmt")
 /// - name (str): The group's name
@@ -16,6 +22,11 @@
 ///    - array: either (`<all>`,), (`<vertical>`, `<horizontal>`) or (`<top>`, `<right>`, `<bottom>`, `<left>`)
 ///    - dictionary: valid keys are "top", "right", "bottom" and "left"
 /// - radius (number): The corner radius
+/// - ports (dictionary): see #doc-ref("element.elmt")
+/// - ports-margins (dictionary): see #doc-ref("element.elmt")
+/// - outside-port-names (bool): If `true` (default), port name labels are drawn outside the group border so they do not overlap child elements. Set to `false` to draw labels inside, matching the block behaviour
+/// - port-name-padding (number, length): Padding between the port name label and the group border (default `2pt`). Accepts anything CeTZ accepts as `padding` (number or length)
+/// - debug (dictionary): see #doc-ref("element.elmt")
 #let group(
   body,
   id: "",
@@ -24,7 +35,14 @@
   fill: none,
   stroke: black + 1pt,
   padding: 0.5em,
-  radius: 0.5em
+  radius: 0.5em,
+  ports: (:),
+  ports-margins: (:),
+  outside-port-names: true,
+  port-name-padding: 2pt,
+  debug: (
+    ports: false
+  )
 ) = {
   let min-x = none
   let max-x = none
@@ -68,6 +86,20 @@
     stroke: stroke,
     fill: fill
   )
+
+  add-ports(
+    id,
+    id + ".north-west",
+    id + ".north-east",
+    id + ".south-east",
+    id + ".south-west",
+    ports,
+    ports-margins,
+    debug: debug.ports,
+    outside-name: outside-port-names,
+    name-padding: port-name-padding,
+  )
+
   if name != none {
     draw.content(
       id + "." + name-anchor,

src/elements/ports.typ

@@ -1,11 +1,13 @@
 #import "/src/cetz.typ": draw
-#import "../util.typ": rotate-anchor
+#import "../util.typ": rotate-anchor, opposite-anchor
 
 #let add-port(
   elmt-id, side, port, pos,
   prev: none,
   next: none,
-  debug: false
+  debug: false,
+  outside-name: false,
+  name-padding: 2pt,
 ) = {
   let name = port.at("name", default: "")
   let name-rotate = port.at("vertical", default: false)
@@ -27,10 +29,22 @@
     // TODO: use context or vectors to have the height relative to the width
     draw.line(prev, pos1, next)
   }
+
+  // When outside-name is true (e.g. for groups) the label is placed on the
+  // exterior of the element border so it does not overlap child elements.
+  // Horizontal labels: anchor = opposite of the side (e.g. east port → west-anchored text, outside).
+  // Vertical labels:   same opposite side but rotated 90°, keeping text readable.
+  let name-anchor = if outside-name {
+    if name-rotate { rotate-anchor(opposite-anchor(side)) }
+    else           { opposite-anchor(side) }
+  } else {
+    if name-rotate { rotate-anchor(side) } else { side }
+  }
+
   draw.content(
     pos,
-    anchor: if name-rotate {rotate-anchor(side)} else {side},
+    anchor: name-anchor,
-    padding: 2pt,
+    padding: name-padding,
     angle: if name-rotate {90deg} else {0deg},
     name
   )
@@ -60,7 +74,9 @@
   tl, tr, br, bl,
   ports,
   ports-margins,
-  debug: false
+  debug: false,
+  outside-name: false,
+  name-padding: 2pt,
 ) = {
   let sides = (
     "north": (tl, tr),
@@ -109,7 +125,9 @@
         pos,
         prev: pos-prev,
         next: pos-next,
-        debug: debug
+        debug: debug,
+        outside-name: outside-name,
+        name-padding: name-padding,
       )
     }
   }

src/lib.typ

@@ -1,4 +1,4 @@
-#let version = version(0, 2, 0)
+#let version = version(0, 2, 1)
 #let name = "circuiteria"
 
 #import "circuit.typ": circuit

src/util.typ

@@ -73,4 +73,45 @@
 #let valid-anchors = (
   "center", "north", "east", "west", "south",
   "north-east", "north-west", "south-east", "south-west"
-)
+)
+
+/// Normalizes a coordinate so that 2D points (x, y) are padded
+/// to (x, y, 0) as required by CeTZ's coordinate resolver.
+/// Also handles function-based and dictionary-based coordinates
+/// recursively.
+///
+/// - coord (any): A CeTZ-compatible coordinate
+/// -> any
+#let normalize-coord(coord) = {
+  if type(coord) == array {
+    if coord.len() == 2 {
+      let (a, b) = coord
+      // Raw 2D point: (x, y) -> (x, y, 0)
+      if type(a) in (int, float) and type(b) in (int, float) {
+        return (a, b, 0)
+      }
+      // Function-based coordinate: (fn, point)
+      if type(a) == function {
+        let orig = a
+        return (v => {
+          let result = orig(v)
+          if type(result) == array and result.len() == 2 {
+            let (rx, ry) = result
+            if type(rx) in (int, float) and type(ry) in (int, float) {
+              return (rx, ry, 0)
+            }
+          }
+          return result
+        }, b)
+      }
+    }
+  }
+  if type(coord) == dictionary {
+    let result = (:)
+    for (key, value) in coord {
+      result.insert(key, normalize-coord(value))
+    }
+    return result
+  }
+  return coord
+}

src/wire.typ

@@ -1,5 +1,5 @@
 #import "/src/cetz.typ": draw, coordinate
-#import "util.typ": opposite-anchor
+#import "util.typ": opposite-anchor, normalize-coord
 
 /// List of valid wire styles
 /// #examples.wires
@@ -68,8 +68,8 @@
   
   let (ctx, p0) = coordinate.resolve(ctx, start)
   let (ctx, p3) = coordinate.resolve(ctx, end)
-  p0 = (x: p0.first(), y: p0.last())
+  p0 = (x: p0.first(), y: p0.at(1))
-  p3 = (x: p3.first(), y: p3.last())
+  p3 = (x: p3.first(), y: p3.at(1))
 
   let dx1 = margin-start
   let dx2 = margin-end
@@ -86,13 +86,13 @@
   if side-end == "east" {
     dx2 *= -1
   }
-  p1 = (p0.x + dx1, p0.y)
+  p1 = (p0.x + dx1, p0.y, 0)
-  p2 = (p3.x - dx2, p0.y)
+  p2 = (p3.x - dx2, p0.y, 0)
 
   let points = (
     start,
     (horizontal: p1, vertical: ()),
-    (horizontal: (), vertical: (0, dodge-y)),
+    (horizontal: (), vertical: (0, dodge-y, 0)),
     (horizontal: p2, vertical: ()),
     (horizontal: (), vertical: end),
     end
@@ -147,18 +147,18 @@
 
 
   // points that are closest to the edge points
-  let p1 = (p0.x + dx1, p0.y + dy1)
+  let p1 = (p0.x + dx1, p0.y + dy1, 0)
-  let p5 = (p6.x + dx2, p6.y + dy2)
+  let p5 = (p6.x + dx2, p6.y + dy2, 0)
 
 
   // middle point
   let center_x = p0.x + box_width * center_horizontal / 100%
   let center_y = p0.y + box_height * center_vertical / 100%
-  let p3 = (center_x, center_y)
+  let p3 = (center_x, center_y, 0)
 
   // setting up the points for that touch the guides
-  let p2 = (0,0)
+  let p2 = (0, 0, 0)
-  let p4 = (0,0)
+  let p4 = (0, 0, 0)
   if side-start in ("north", "south") {
     p2 = (horizontal: p3, vertical: p1)
   } else {
@@ -240,6 +240,9 @@
   if pts.len() != 2 {
     panic("Wrong number of points (got " + str(pts.len()) + " instead of 2)")
   }
+
+  // Normalize user-provided coordinates: (x, y) -> (x, y, 0)
+  let pts = pts.map(normalize-coord)
   
   let stroke = (
     paint: color,

typst.toml

@@ -1,7 +1,7 @@
 [package]
 name = "circuiteria"
-version = "0.2.0"
+version = "0.2.1"
-compiler = "0.13.1"
+compiler = "0.15.0"
 repository = "https://git.kb28.ch/HEL/circuiteria"
 entrypoint = "src/lib.typ"
 authors = [
@@ -9,6 +9,6 @@ authors = [
 ]
 categories = [ "visualization" ]
 license = "Apache-2.0"
-description = "Drawing block circuits with Typst made easy, using CeTZ"
+description = "Drawing block circuits made easy, using CeTZ"
 keywords = [ "circuit", "block", "draw" ]
 exclude = [ "gallery", "justfile", "doc" ]