chronos/src/sequence.typ

370 lines
9.0 KiB
Typst

#import "@preview/cetz:0.2.2": draw, vector
#import "consts.typ": *
#import "participant.typ"
#import "note.typ"
#let get-arrow-marks(sym, color) = {
if type(sym) == array {
return sym.map(s => get-arrow-marks(s, color))
}
(
"": none,
">": (symbol: ">", fill: color),
">>": (symbol: "straight"),
"\\": (symbol: ">", fill: color, harpoon: true, flip: true),
"\\\\": (symbol: "straight", harpoon: true, flip: true),
"/": (symbol: ">", fill: color, harpoon: true),
"//": (symbol: "straight", harpoon: true),
"x": none,
"o": none,
).at(sym)
}
#let reverse-arrow-mark(mark) = {
if type(mark) == array {
return mark.map(m => reverse-arrow-mark(m))
}
let mark2 = mark
if type(mark) == dictionary and mark.at("harpoon", default: false) {
let flipped = mark.at("flip", default: false)
mark2.insert("flip", not flipped)
}
return mark2
}
#let is-tip-of-type(type_, tip) = {
if type(tip) == str and tip == type_ {
return true
}
if type(tip) == array and tip.contains(type_) {
return true
}
return false
}
#let is-circle-tip = is-tip-of-type.with("o")
#let is-cross-tip = is-tip-of-type.with("x")
#let _seq(
p1,
p2,
comment: none,
comment-align: "left",
dashed: false,
start-tip: "",
end-tip: ">",
color: black,
flip: false,
enable-dst: false,
create-dst: false,
disable-dst: false,
destroy-dst: false,
disable-src: false,
destroy-src: false,
lifeline-style: auto,
slant: none
) = {
return ((
type: "seq",
p1: p1,
p2: p2,
comment: comment,
comment-align: comment-align,
dashed: dashed,
start-tip: start-tip,
end-tip: end-tip,
color: color,
flip: flip,
enable-dst: enable-dst,
create-dst: create-dst,
disable-dst: disable-dst,
destroy-dst: destroy-dst,
disable-src: disable-src,
destroy-src: destroy-src,
lifeline-style: lifeline-style,
slant: slant
),)
}
#let render(pars-i, x-pos, participants, elmt, y, lifelines) = {
let shapes = ()
y -= Y-SPACE
let h = 0
// Reserve space for comment
if elmt.comment != none {
h = calc.max(h, measure(box(elmt.comment)).height / 1pt + 6)
}
if "linked-note" in elmt {
h = calc.max(h, note.get-size(elmt.linked-note).height / 2)
}
y -= h
let i1 = pars-i.at(elmt.p1)
let i2 = pars-i.at(elmt.p2)
let start-info = (
i: i1,
x: x-pos.at(i1),
y: y,
ll-lvl: lifelines.at(i1).level * LIFELINE-W / 2
)
let end-info = (
i: i2,
x: x-pos.at(i2),
y: y,
ll-lvl: lifelines.at(i2).level * LIFELINE-W / 2
)
let slant = if elmt.slant == auto {
DEFAULT-SLANT
} else if elmt.slant != none {
elmt.slant
} else {
0
}
end-info.y -= slant
if elmt.p1 == elmt.p2 {
end-info.y -= 10
}
if elmt.disable-src {
let src-line = lifelines.at(i1)
src-line.level -= 1
src-line.lines.push(("disable", start-info.y))
lifelines.at(i1) = src-line
}
if elmt.destroy-src {
let src-line = lifelines.at(i1)
src-line.lines.push(("destroy", start-info.y))
lifelines.at(i1) = src-line
}
if elmt.disable-dst {
let dst-line = lifelines.at(i2)
dst-line.level -= 1
dst-line.lines.push(("disable", end-info.y))
lifelines.at(i2) = dst-line
}
if elmt.destroy-dst {
let dst-line = lifelines.at(i2)
dst-line.lines.push(("destroy", end-info.y))
lifelines.at(i2) = dst-line
}
if elmt.enable-dst {
let dst-line = lifelines.at(i2)
dst-line.level += 1
lifelines.at(i2) = dst-line
}
if elmt.create-dst {
let par = participants.at(i2)
let m = measure(box(par.display-name))
let f = if i1 > i2 {-1} else {1}
end-info.x -= (m.width + PAR-PAD.last() * 2) / 2pt * f
shapes += participant.render(x-pos, par, y: end-info.y - CREATE-OFFSET)
}
end-info.ll-lvl = lifelines.at(i2).level * LIFELINE-W / 2
// Compute left/right position at start/end
start-info.insert("lx", start-info.x)
if start-info.ll-lvl != 0 { start-info.lx -= LIFELINE-W / 2 }
end-info.insert("lx", end-info.x)
if end-info.ll-lvl != 0 { end-info.lx -= LIFELINE-W / 2 }
start-info.insert("rx", start-info.x + start-info.ll-lvl)
end-info.insert("rx", end-info.x + end-info.ll-lvl)
// Choose correct points to link
let x1 = start-info.rx
let x2 = end-info.lx
if (start-info.i > end-info.i) {
x1 = start-info.lx
x2 = end-info.rx
}
let style = (
mark: (
start: get-arrow-marks(elmt.start-tip, elmt.color),
end: get-arrow-marks(elmt.end-tip, elmt.color),
scale: 1.2
),
stroke: (
dash: if elmt.dashed {(2pt,2pt)} else {"solid"},
paint: elmt.color,
thickness: .5pt
)
)
let y0 = start-info.y
if "linked-note" in elmt {
let shps = note.render(pars-i, x-pos, elmt.linked-note, start-info.y, lifelines).last()
shapes += shps
}
let flip-mark = end-info.i <= start-info.i
if elmt.flip {
flip-mark = not flip-mark
}
if flip-mark {
style.mark.end = reverse-arrow-mark(style.mark.end)
}
let pts
let comment-pt
let comment-anchor
let comment-angle = 0deg
if elmt.p1 == elmt.p2 {
if elmt.flip {
x1 = start-info.lx
} else {
x2 = end-info.rx
}
let x-mid = if elmt.flip {
calc.min(x1, x2) - 20
} else {
calc.max(x1, x2) + 20
}
pts = (
(x1, start-info.y),
(x-mid, start-info.y),
(x-mid, end-info.y),
(x2, end-info.y)
)
if elmt.comment != none {
comment-anchor = (
start: if x-mid < x1 {"south-east"} else {"south-west"},
end: if x-mid < x1 {"south-west"} else {"south-east"},
left: "south-west",
right: "south-east",
center: "south",
).at(elmt.comment-align)
comment-pt = (
start: pts.first(),
end: pts.at(1),
left: if x-mid < x1 {pts.at(1)} else {pts.first()},
right: if x-mid < x1 {pts.first()} else {pts.at(1)},
center: (pts.first(), 50%, pts.at(1))
).at(elmt.comment-align)
}
} else {
pts = (
(x1, start-info.y),
(x2, end-info.y)
)
if elmt.comment != none {
let start-pt = pts.first()
let end-pt = pts.last()
if elmt.start-tip != "" {
start-pt = (pts.first(), COMMENT-PAD, pts.last())
}
if elmt.end-tip != "" {
end-pt = (pts.last(), COMMENT-PAD, pts.first())
}
comment-pt = (
start: start-pt,
end: end-pt,
left: if x2 < x1 {end-pt} else {start-pt},
right: if x2 < x1 {start-pt} else {end-pt},
center: (start-pt, 50%, end-pt)
).at(elmt.comment-align)
comment-anchor = (
start: if x2 < x1 {"south-east"} else {"south-west"},
end: if x2 < x1 {"south-west"} else {"south-east"},
left: "south-west",
right: "south-east",
center: "south",
).at(elmt.comment-align)
}
let (p1, p2) = pts
if x2 < x1 {
(p1, p2) = (p2, p1)
}
comment-angle = vector.angle2(p1, p2)
}
// Start circle tip
if is-circle-tip(elmt.start-tip) {
shapes += draw.circle(pts.first(), radius: CIRCLE-TIP-RADIUS, stroke: elmt.color, fill: none, name: "_circle-start-tip")
pts.at(0) = "_circle-start-tip"
// Start cross tip
} else if is-cross-tip(elmt.start-tip) {
let size = CROSS-TIP-SIZE
let cross-pt = (pts.first(), size * 2, pts.at(1))
shapes += draw.line(
(rel: (-size, -size), to: cross-pt),
(rel: (size, size), to: cross-pt),
stroke: elmt.color + 1.5pt
)
shapes += draw.line(
(rel: (-size, size), to: cross-pt),
(rel: (size, -size), to: cross-pt),
stroke: elmt.color + 1.5pt
)
pts.at(0) = cross-pt
}
// End circle tip
if is-circle-tip(elmt.end-tip) {
shapes += draw.circle(pts.last(), radius: 3, stroke: elmt.color, fill: none, name: "_circle-end-tip")
pts.at(pts.len() - 1) = "_circle-end-tip"
// End cross tip
} else if is-cross-tip(elmt.end-tip) {
let size = CROSS-TIP-SIZE
let cross-pt = (pts.last(), size * 2, pts.at(pts.len() - 2))
shapes += draw.line(
(rel: (-size, -size), to: cross-pt),
(rel: (size, size), to: cross-pt),
stroke: elmt.color + 1.5pt
)
shapes += draw.line(
(rel: (-size, size), to: cross-pt),
(rel: (size, -size), to: cross-pt),
stroke: elmt.color + 1.5pt
)
pts.at(pts.len() - 1) = cross-pt
}
shapes += draw.line(..pts, ..style)
if elmt.comment != none {
shapes += draw.content(
comment-pt,
elmt.comment,
anchor: comment-anchor,
angle: comment-angle,
padding: 3pt
)
}
if elmt.enable-dst {
let dst-line = lifelines.at(i2)
dst-line.lines.push(("enable", end-info.y, elmt.lifeline-style))
lifelines.at(i2) = dst-line
}
if elmt.create-dst {
end-info.y -= CREATE-OFFSET
let dst-line = lifelines.at(i2)
dst-line.lines.push(("create", end-info.y))
lifelines.at(i2) = dst-line
}
if "linked-note" in elmt {
let m = note.get-size(elmt.linked-note)
end-info.y = calc.min(end-info.y, y0 - m.height / 2)
}
let r = (end-info.y, lifelines, shapes)
return r
}