forked from HEL/circuiteria
initial rewrite of drawing pipeline + positioning
This commit is contained in:
@ -1,4 +1,4 @@
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#import "@preview/cetz:0.3.2": draw, coordinate
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#import "@preview/cetz:0.3.2": draw, coordinate, matrix, vector
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#import "ports.typ": add-ports, add-port
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#import "../util.typ"
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@ -13,10 +13,163 @@
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panic("Could not find port with id " + str(id))
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}
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#let default-draw-shape(id, tl, tr, br, bl, fill, stroke) = {
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return ({}, tl, tr, br, bl)
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#let local-to-global(origin, u, v, points) = {
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return points-real = points.map(p => {
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let (pu, pv) = p
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return vector.add(
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origin,
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vector.add(
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vector.scale(u, pu),
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vector.scale(v, pv)
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)
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)
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})
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}
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#let default-draw-shape(elmt, bounds) = {
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return ({}, bounds)
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}
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#let default-pre-process(elements, element) = {
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return elements
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}
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#let resolve-offset(ctx, offset, from, axis) = {
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let (ctx, pos) = coordinate.resolve(
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ctx,
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(rel: offset, to: from)
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)
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return pos.at(axis)
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}
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#let resolve-align(ctx, elmt, align, with, axis) = {
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let (align-side, i) = find-port(elmt.ports, align)
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let margins = (0%, 0%)
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if align-side in elmt.ports-margins {
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margins = elmt.ports-margins.at(align-side)
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}
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let parallel-sides = (
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("north", "south"),
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("west", "east")
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).at(axis)
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let ortho-sides = (
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("west", "east"),
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("north", "south")
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).at(axis)
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let dl
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let start-margin
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let len = elmt.size.at(axis)
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if align-side in parallel-sides {
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let used-pct = 100% - margins.at(0) - margins.at(1)
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let used-len = len * used-pct / 100%
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start-margin = len * margins.at(0) / 100%
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dl = used-len * (i + 1) / (elmt.ports.at(align-side).len() + 1)
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if not elmt.auto-ports {
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start-margin = 0
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dl = elmt.ports-pos.at(with)(len)
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}
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} else if align-side == ortho-sides.first() {
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dl = 0
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start-margin = 0
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} else {
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dl = len
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start-margin = 0
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}
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if axis == 1 {
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dl = len - dl
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}
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let (ctx, with-pos) = coordinate.resolve(ctx, with)
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return with-pos.at(axis) - dl + start-margin
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}
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#let resolve-coordinate(ctx, elmt, coord, axis) = {
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if type(coord) == dictionary {
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let offset = coord.at("offset", default: none)
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let from = coord.at("from", default: none)
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let align = coord.at("align", default: none)
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let with = coord.at("with", default: none)
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if none not in (offset, from) {
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if type(offset) != array {
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let a = (0, 0)
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a.at(axis) = offset
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offset = a
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}
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return resolve-offset(ctx, offset, from, axis)
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} else if none not in (align, with) {
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return resolve-align(ctx, elmt, align, with, axis)
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} else {
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panic("Dictionnary must either provide both 'offset' and 'from', or 'align' and 'with'")
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}
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}
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if type(coord) not in (int, float, length) {
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panic("Invalid " + "xy".at(axis) + " coordinate: " + repr(coord))
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}
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return coord
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}
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#let make-bounds(x, y, w, h) = {
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let w2 = w / 2
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let h2 = h / 2
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return (
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bl: (x, y),
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tl: (x, y + h),
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tr: (x + w, y + h),
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br: (x + w, y),
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center: (x + w2, y + h2),
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b: (x + w2, y),
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t: (x + w2, y + h),
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l: (x, y + h2),
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r: (x + w, y + h2),
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)
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}
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#let render(draw-shape, elmt) = draw.group(name: elmt.id, ctx => {
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let width = elmt.size.first()
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let height = elmt.size.last()
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let x = elmt.pos.first()
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let y = elmt.pos.last()
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x = resolve-coordinate(ctx, elmt, x, 0)
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y = resolve-coordinate(ctx, elmt, y, 1)
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let bounds = make-bounds(x, y, width, height)
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// Workaround because CeTZ needs to have all draw functions in the body
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let func = {}
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(func, bounds) = draw-shape(elmt, bounds)
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func
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if elmt.name != none {
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draw.content(
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(name: elmt.id, anchor: elmt.name-anchor),
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anchor: if elmt.name-anchor in util.valid-anchors {elmt.name-anchor} else {"center"},
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padding: 0.5em,
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align(center)[*#elmt.name*]
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)
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}
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if elmt.auto-ports {
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add-ports(
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elmt.id,
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bounds,
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elmt.ports,
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elmt.ports-margins,
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debug: elmt.debug.ports
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)
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}
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})
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/// Draws an element
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/// - draw-shape (function): Draw function
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/// - x (number, dictionary): The x position (bottom-left corner).
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@ -46,10 +199,9 @@
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/// - `ports`: if true, shows dots on all ports of the element
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#let elmt(
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draw-shape: default-draw-shape,
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x: none,
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y: none,
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w: none,
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h: none,
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pre-process: default-pre-process,
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pos: (0, 0),
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size: (1, 1),
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name: none,
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name-anchor: "center",
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ports: (:),
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@ -62,84 +214,42 @@
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debug: (
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ports: false
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)
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) = draw.get-ctx(ctx => {
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let width = w
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let height = h
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let x = x
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let y = y
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if x == none { panic("Parameter x must be set") }
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if y == none { panic("Parameter y must be set") }
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if w == none { panic("Parameter w must be set") }
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if h == none { panic("Parameter h must be set") }
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if (type(x) == dictionary) {
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let offset = x.rel
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let to = x.to
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let (ctx, to-pos) = coordinate.resolve(ctx, (rel: (offset, 0), to: to))
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x = to-pos.at(0)
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}
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if (type(y) == dictionary) {
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let from = y.from
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let to = y.to
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let (to-side, i) = find-port(ports, to)
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let margins = (0%, 0%)
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if to-side in ports-margins {
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margins = ports-margins.at(to-side)
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) = {
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for (key, side-ports) in ports.pairs() {
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if type(side-ports) == str {
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side-ports = ((id: side-ports),)
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} else if type(side-ports) == dictionary {
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side-ports = (side-ports,)
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}
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let dy
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let top-margin
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if to-side in ("east", "west") {
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let used-pct = 100% - margins.at(0) - margins.at(1)
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let used-height = height * used-pct / 100%
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top-margin = height * margins.at(0) / 100%
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dy = used-height * (i + 1) / (ports.at(to-side).len() + 1)
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if not auto-ports {
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top-margin = 0
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dy = ports-y.at(to)(height)
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for (i, port) in side-ports.enumerate() {
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if type(port) == array {
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side-ports.at(i) = (
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id: port.at(0, default: ""),
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name: port.at(1, default: "")
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)
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} else if type(port) == str {
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side-ports.at(i) = (id: port)
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}
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} else if to-side == "north" {
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dy = 0
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top-margin = 0
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} else if to-side == "south" {
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dy = height
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top-margin = 0
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}
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let (ctx, from-pos) = coordinate.resolve(ctx, from)
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y = from-pos.at(1) + dy - height + top-margin
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ports.at(key) = side-ports
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}
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let tl = (x, y + height)
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let tr = (x + width, y + height)
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let br = (x + width, y)
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let bl = (x, y)
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// Workaround because CeTZ needs to have all draw functions in the body
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let func = {}
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(func, tl, tr, br, bl) = draw-shape(id, tl, tr, br, bl, fill, stroke)
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func
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if (name != none) {
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draw.content(
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(name: id, anchor: name-anchor),
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anchor: if name-anchor in util.valid-anchors {name-anchor} else {"center"},
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padding: 0.5em,
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align(center)[*#name*]
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)
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}
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if auto-ports {
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add-ports(
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id,
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tl, tr, br, bl,
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ports,
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ports-margins,
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debug: debug.ports
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)
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}
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})
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return ((
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id: id,
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draw: render.with(draw-shape),
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pre-process: pre-process,
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pos: pos,
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size: size,
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name: name,
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name-anchor: name-anchor,
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ports: ports,
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ports-margins: ports-margins,
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fill: fill,
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stroke: stroke,
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auto-ports: auto-ports,
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ports-y: ports-y,
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debug: debug
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),)
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}
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