refactored notes

src/core/draw/note.typ

@@ -0,0 +1,169 @@
+#import "../../consts.typ": *
+#import "../utils.typ": get-ctx, set-ctx
+#import "../../cetz.typ": draw
+
+#let get-size(note) = {
+  let PAD = if note.shape == "hex" {NOTE-HEX-PAD} else {NOTE-PAD}
+  let m = measure(box(note.content))
+  let w = m.width / 1pt + PAD.last() * 2
+  let h = m.height / 1pt + PAD.first() * 2
+  if note.shape == "default" {
+    w += NOTE-CORNER-SIZE
+  }
+  return (
+    width: w,
+    height: h
+  )
+}
+
+#let get-base-x(pars-i, x-pos, note) = {
+  if note.side == "across" {
+    return (x-pos.first() + x-pos.last()) / 2
+  }
+  if note.side == "over" {
+    if type(note.pos) == array {
+      let xs = note.pos.map(par => x-pos.at(pars-i.at(par)))
+      return (calc.min(..xs) + calc.max(..xs)) / 2
+    }
+  }
+  return x-pos.at(pars-i.at(note.pos))
+}
+
+#let get-box(note) = {
+  let PAD = if note.shape == "hex" {NOTE-HEX-PAD} else {NOTE-PAD}
+  let inset = (
+    left: PAD.last() * 1pt,
+    right: PAD.last() * 1pt,
+    top: PAD.first() * 1pt,
+    bottom: PAD.first() * 1pt,
+  )
+  if note.shape == "default" {
+    inset.right += NOTE-CORNER-SIZE * 1pt
+  }
+  if note.side == "left" {
+    inset.right += NOTE-GAP * 1pt
+  } else if note.side == "right" {
+    inset.left += NOTE-GAP * 1pt
+  }
+  return box(note.content, inset: inset)
+}
+
+#let pre-render(note) = {
+  
+}
+
+#let render(note, y: auto, forced: false) = {
+  if not note.linked {
+    if not note.aligned {
+      set-ctx(c => {
+        c.y -= Y-SPACE
+        return c
+      })
+    }
+  } else if not forced {
+    return ()
+  }
+
+  get-ctx(ctx => {
+    let y = y
+    if y == auto {
+      y = ctx.y
+    }
+    
+
+    let PAD = if note.shape == "hex" {NOTE-HEX-PAD} else {NOTE-PAD}
+    let m = measure(box(note.content))
+    let w = m.width / 1pt + PAD.last() * 2
+    let h = m.height / 1pt + PAD.first() * 2
+    let total-w = w
+    if note.shape == "default" {
+      total-w += NOTE-CORNER-SIZE
+    }
+
+    let base-x = get-base-x(ctx.pars-i, ctx.x-pos, note)
+
+    let i = none
+    if note.pos != none and type(note.pos) == str {
+      i = ctx.pars-i.at(note.pos)
+    }
+    let x0 = base-x
+    if note.side == "left" {
+      x0 -= NOTE-GAP
+      x0 -= total-w
+      if ctx.lifelines.at(i).level != 0 {
+        x0 -= LIFELINE-W / 2
+      }
+    } else if note.side == "right" {
+      x0 += NOTE-GAP
+      x0 += ctx.lifelines.at(i).level * LIFELINE-W / 2
+    } else if note.side == "over" or note.side == "across" {
+      x0 -= total-w / 2
+    }
+
+    let x1 = x0 + w
+    let x2 = x0 + total-w
+    let y0 = y
+
+    if note.linked {
+      y0 += h / 2
+    }
+    let y1 = y0 - h
+
+    if note.shape == "default" {
+      draw.merge-path(
+        stroke: black + .5pt,
+        fill: note.color,
+        close: true,
+        {
+          draw.line(
+            (x0, y0),
+            (x1, y0),
+            (x2, y0 - NOTE-CORNER-SIZE),
+            (x2, y1),
+            (x0, y1)
+          )
+        }
+      )
+      draw.line((x1, y0), (x1, y0 - NOTE-CORNER-SIZE), (x2, y0 - NOTE-CORNER-SIZE), stroke: black + .5pt)
+    } else if note.shape == "rect" {
+      draw.rect(
+        (x0, y0),
+        (x2, y1),
+        stroke: black + .5pt,
+        fill: note.color
+      )
+    } else if note.shape == "hex" {
+      let lx = x0 + PAD.last()
+      let rx = x2 - PAD.last()
+      let my = (y0 + y1) / 2
+      draw.merge-path(
+        stroke: black + .5pt,
+        fill: note.color,
+        close: true,
+        {
+          draw.line(
+            (lx, y0),
+            (rx, y0),
+            (x2, my),
+            (rx, y1),
+            (lx, y1),
+            (x0, my),
+          )
+        }
+      )
+    }
+
+    draw.content(
+      ((x0 + x1)/2, (y0 + y1)/2),
+      note.content,
+      anchor: "center"
+    )
+
+    if note.aligned-with == none and (note.pos != none or note.side == "across") {
+      set-ctx(c => {
+        c.y -= h
+        return c
+      })
+    }
+  })
+}