chronos/src/participant.typ

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Typst

#import "@preview/cetz:0.3.1": draw
#import "consts.typ": *
#let PAR-SPECIALS = "?[]"
#let SHAPES = (
"participant",
"actor",
"boundary",
"control",
"entity",
"database",
"collections",
"queue",
"custom"
)
#let DEFAULT-COLOR = rgb("#E2E2F0")
#let _par(
name,
display-name: auto,
from-start: true,
invisible: false,
shape: "participant",
color: DEFAULT-COLOR,
custom-image: none,
show-bottom: true,
show-top: true,
) = {
if color == auto {
color = DEFAULT-COLOR
}
return ((
type: "par",
name: name,
display-name: if display-name == auto {name} else {display-name},
from-start: from-start,
invisible: invisible,
shape: shape,
color: color,
custom-image: custom-image,
show-bottom: show-bottom,
show-top: show-top
),)
}
#let _exists(participants, name) = {
if name == "?" or name == "[" or name == "]" {
return true
}
for p in participants {
if name == p.name {
return true
}
}
return false
}
#let get-size(par) = {
if par.invisible {
return (width: 0pt, height: 0pt)
}
let m = measure(box(par.display-name))
let w = m.width
let h = m.height
let (shape-w, shape-h) = (
participant: (w + PAR-PAD.last() * 2, h + PAR-PAD.first() * 2),
actor: (ACTOR-WIDTH * 1pt, ACTOR-WIDTH * 2pt + SYM-GAP * 1pt + h),
boundary: (BOUNDARY-HEIGHT * 2pt, BOUNDARY-HEIGHT * 1pt + SYM-GAP * 1pt + h),
control: (CONTROL-HEIGHT * 1pt, CONTROL-HEIGHT * 1pt + SYM-GAP * 1pt + h),
entity: (ENTITY-HEIGHT * 1pt, ENTITY-HEIGHT * 1pt + 2pt + SYM-GAP * 1pt + h),
database: (DATABASE-WIDTH * 1pt, DATABASE-WIDTH * 4pt / 3 + SYM-GAP * 1pt + h),
collections: (
w + COLLECTIONS-PAD.last() * 2 + calc.abs(COLLECTIONS-DX) * 1pt,
h + COLLECTIONS-PAD.first() * 2 + calc.abs(COLLECTIONS-DY) * 1pt,
),
queue: (
w + QUEUE-PAD.last() * 2 + 3 * (h + QUEUE-PAD.first() * 2) / 4,
h + QUEUE-PAD.first() * 2
),
custom: (
measure(par.custom-image).width,
measure(par.custom-image).height + SYM-GAP * 1pt + h
)
).at(par.shape)
return (
width: calc.max(w, shape-w),
height: calc.max(h, shape-h)
)
}
#let _render-participant(x, y, p, m, bottom) = {
let w = m.width / 1pt
let h = m.height / 1pt
let x0 = x - w / 2 - PAR-PAD.last() / 1pt
let x1 = x + w / 2 + PAR-PAD.last() / 1pt
let y0 = y + h + PAR-PAD.first() / 1pt * 2
if bottom {
y0 = y
}
let y1 = y0 - h - PAR-PAD.first() / 1pt * 2
draw.rect(
(x0, y0),
(x1, y1),
radius: 2pt,
fill: p.color,
stroke: black + .5pt
)
draw.content(
((x0 + x1) / 2, (y0 + y1) / 2),
p.display-name,
anchor: "center"
)
}
#let _render-actor(x, y, p, m, bottom) = {
let w2 = ACTOR-WIDTH / 2
let head-r = ACTOR-WIDTH / 4
let height = ACTOR-WIDTH * 2
let arms-y = height * 0.375
let y0 = if bottom {y - m.height / 1pt - SYM-GAP} else {y + m.height / 1pt + height + SYM-GAP}
draw.circle(
(x, y0 - head-r),
radius: head-r,
fill: p.color,
stroke: black + .5pt
)
draw.line((x, y0 - head-r * 2), (x, y0 - height + w2), stroke: black + .5pt)
draw.line((x - w2, y0 - arms-y), (x + w2, y0 - arms-y), stroke: black + .5pt)
draw.line((x - w2, y0 - height), (x, y0 - height + w2), (x + w2, y0 - height), stroke: black + .5pt)
draw.content(
(x, y),
p.display-name,
anchor: if bottom {"north"} else {"south"}
)
}
#let _render-boundary(x, y, p, m, bottom) = {
let circle-r = BOUNDARY-HEIGHT / 2
let y0 = if bottom {y - m.height / 1pt - SYM-GAP} else {y + m.height / 1pt + BOUNDARY-HEIGHT + SYM-GAP}
let x0 = x - BOUNDARY-HEIGHT
let y1 = y0 - circle-r
let y2 = y0 - BOUNDARY-HEIGHT
draw.circle(
(x + circle-r, y1),
radius: circle-r,
fill: p.color,
stroke: black + .5pt
)
draw.line(
(x0, y0), (x0, y2),
stroke: black + .5pt
)
draw.line(
(x0, y1), (x, y1),
stroke: black + .5pt
)
draw.content(
(x, y),
p.display-name,
anchor: if bottom {"north"} else {"south"}
)
}
#let _render-control(x, y, p, m, bottom) = {
let r = CONTROL-HEIGHT / 2
let y0 = if bottom {y - m.height / 1pt - SYM-GAP} else {y + m.height / 1pt + CONTROL-HEIGHT + SYM-GAP}
draw.circle(
(x, y0 - r),
radius: r,
fill: p.color,
stroke: black + .5pt
)
draw.mark((x, y0), (x - r / 2, y0), symbol: "stealth", fill: black)
draw.content(
(x, y),
p.display-name,
anchor: if bottom {"north"} else {"south"}
)
}
#let _render-entity(x, y, p, m, bottom) = {
let r = ENTITY-HEIGHT / 2
let y0 = if bottom {y - m.height / 1pt - SYM-GAP} else {y + m.height / 1pt + ENTITY-HEIGHT + SYM-GAP}
let y1 = y0 - ENTITY-HEIGHT - 1.5
draw.circle(
(x, y0 - r),
radius: r,
fill: p.color,
stroke: black + .5pt
)
draw.line(
(x - r, y1),
(x + r, y1),
stroke: black + .5pt
)
draw.content(
(x, y),
p.display-name,
anchor: if bottom {"north"} else {"south"}
)
}
#let _render-database(x, y, p, m, bottom) = {
let height = DATABASE-WIDTH * 4 / 3
let rx = DATABASE-WIDTH / 2
let ry = rx / 2
let y0 = if bottom {y - m.height / 1pt - SYM-GAP} else {y + m.height / 1pt + height + SYM-GAP}
let y1 = y0 - height
draw.merge-path(
close: true,
fill: p.color,
stroke: black + .5pt,
{
draw.bezier((x - rx, y0 - ry), (x, y0), (x - rx, y0 - ry/2), (x - rx/2, y0))
draw.bezier((), (x + rx, y0 - ry), (x + rx/2, y0), (x + rx, y0 - ry/2))
draw.line((), (x + rx, y1 + ry))
draw.bezier((), (x, y1), (x + rx, y1 + ry/2), (x + rx/2, y1))
draw.bezier((), (x - rx, y1 + ry), (x - rx/2, y1), (x - rx, y1 + ry/2))
}
)
draw.merge-path(
stroke: black + .5pt,
{
draw.bezier((x - rx, y0 - ry), (x, y0 - ry*2), (x - rx, y0 - 3*ry/2), (x - rx/2, y0 - ry*2))
draw.bezier((), (x + rx, y0 - ry), (x + rx/2, y0 - ry*2), (x + rx, y0 - 3*ry/2))
}
)
draw.content(
(x, y),
p.display-name,
anchor: if bottom {"north"} else {"south"}
)
}
#let _render-collections(x, y, p, m, bottom) = {
let w = m.width / 1pt
let h = m.height / 1pt
let dx = COLLECTIONS-DX
let dy = COLLECTIONS-DY
let total-w = w + PAR-PAD.last() * 2 / 1pt + calc.abs(dx)
let total-h = h + PAR-PAD.first() * 2 / 1pt + calc.abs(dy)
let x0 = x - total-w / 2
let x1 = x0 + calc.abs(dx)
let x3 = x0 + total-w
let x2 = x3 - calc.abs(dx)
let y0 = if bottom {y} else {y + total-h}
let y1 = y0 - calc.abs(dy)
let y3 = y0 - total-h
let y2 = y3 + calc.abs(dy)
let r1 = (x1, y0, x3, y2)
let r2 = (x0, y1, x2, y3)
if dx < 0 {
r1.at(0) = x0
r1.at(2) = x2
r2.at(0) = x1
r2.at(2) = x3
}
if dy < 0 {
r1.at(1) = y1
r1.at(3) = y3
r2.at(1) = y0
r2.at(3) = y2
}
draw.rect(
(r1.at(0), r1.at(1)),
(r1.at(2), r1.at(3)),
fill: p.color,
stroke: black + .5pt
)
draw.rect(
(r2.at(0), r2.at(1)),
(r2.at(2), r2.at(3)),
fill: p.color,
stroke: black + .5pt
)
draw.content(
((r2.at(0) + r2.at(2)) / 2, (r2.at(1) + r2.at(3)) / 2),
p.display-name,
anchor: "center"
)
}
#let _render-queue(x, y, p, m, bottom) = {
let w = (m.width + QUEUE-PAD.last() * 2) / 1pt
let h = (m.height + QUEUE-PAD.first() * 2) / 1pt
let total-h = h
let ry = total-h / 2
let rx = ry / 2
let total-w = w + 3 + 3 * rx
let x0 = x - total-w / 2
let y0 = if bottom {y} else {y + total-h}
let y1 = y0 - total-h
let x-left = x0 + rx
let x-right = x-left + w + rx
draw.merge-path(
close: true,
fill: p.color,
stroke: black + .5pt,
{
draw.bezier((x-right, y0), (x-right + rx, y0 - ry), (x-right + rx/2, y0), (x-right + rx, y0 - ry/2))
draw.bezier((), (x-right, y1), (x-right + rx, y1 + ry/2), (x-right + rx/2, y1))
draw.line((), (x-left, y1))
draw.bezier((), (x-left - rx, y0 - ry), (x-left - rx/2, y1), (x-left - rx, y1 + ry/2))
draw.bezier((), (x-left, y0), (x-left - rx, y0 - ry/2), (x-left - rx/2, y0))
}
)
draw.merge-path(
stroke: black + .5pt,
{
draw.bezier((x-right, y0), (x-right - rx, y0 - ry), (x-right - rx/2, y0), (x-right - rx, y0 - ry/2))
draw.bezier((), (x-right, y1), (x-right - rx, y1 + ry/2), (x-right - rx/2, y1))
}
)
draw.content(
((x-left + x-right - rx) / 2, y0 - ry),
p.display-name,
anchor: "center"
)
}
#let _render-custom(x, y, p, m, bottom) = {
let image-m = measure(p.custom-image)
let y0 = if bottom {y - m.height / 1pt - SYM-GAP} else {y + m.height / 1pt + image-m.height / 1pt + SYM-GAP}
draw.content((x - image-m.width / 2pt, y0), p.custom-image, anchor: "north-west")
draw.content(
(x, y),
p.display-name,
anchor: if bottom {"north"} else {"south"}
)
}
#let render(x-pos, p, y: 0, bottom: false) = {
let m = measure(box(p.display-name))
let func = (
participant: _render-participant,
actor: _render-actor,
boundary: _render-boundary,
control: _render-control,
entity: _render-entity,
database: _render-database,
collections: _render-collections,
queue: _render-queue,
custom: _render-custom,
).at(p.shape)
func(x-pos.at(p.i), y, p, m, bottom)
}