1920112500
Drawing the grid as a single path is much more efficient than each marker having their own path that's begun, filled, and closed, especially when there are plenty of them.
263 lines
8.5 KiB
JavaScript
263 lines
8.5 KiB
JavaScript
'use strict'
|
|
|
|
/* global Image */
|
|
/* global Path2D */
|
|
/* global Generator */
|
|
|
|
function Renderer (client) {
|
|
this.el = document.createElement('canvas')
|
|
this.el.id = 'guide'
|
|
this.el.width = 640
|
|
this.el.height = 640
|
|
this.el.style.width = '320px'
|
|
this.el.style.height = '320px'
|
|
this.context = this.el.getContext('2d')
|
|
this.showExtras = true
|
|
|
|
this.scale = 2 // window.devicePixelRatio
|
|
|
|
this.start = function () {
|
|
this.update()
|
|
}
|
|
|
|
this.update = function (force = false) {
|
|
this.resize()
|
|
client.manager.update()
|
|
const render = new Image()
|
|
render.onload = () => {
|
|
this.draw(render)
|
|
}
|
|
render.src = client.manager.svg64()
|
|
}
|
|
|
|
this.draw = function (render) {
|
|
this.clear()
|
|
this.drawMirror()
|
|
this.drawGrid()
|
|
this.drawRulers()
|
|
this.drawRender(render) //
|
|
this.drawVertices()
|
|
this.drawHandles()
|
|
this.drawTranslation()
|
|
this.drawCursor()
|
|
this.drawPreview()
|
|
}
|
|
|
|
this.clear = function () {
|
|
this.context.clearRect(0, 0, this.el.width * this.scale, this.el.height * this.scale)
|
|
}
|
|
|
|
this.toggle = function () {
|
|
this.showExtras = !this.showExtras
|
|
this.update()
|
|
client.interface.update(true)
|
|
}
|
|
|
|
this.resize = function () {
|
|
const _target = client.getPaddedSize()
|
|
const _current = { width: this.el.width / this.scale, height: this.el.height / this.scale }
|
|
const offset = sizeOffset(_target, _current)
|
|
if (offset.width === 0 && offset.height === 0) {
|
|
return
|
|
}
|
|
console.log('Renderer', `Require resize: ${printSize(_target)}, from ${printSize(_current)}`)
|
|
this.el.width = (_target.width) * this.scale
|
|
this.el.height = (_target.height) * this.scale
|
|
this.el.style.width = (_target.width) + 'px'
|
|
this.el.style.height = (_target.height) + 'px'
|
|
}
|
|
|
|
// Collections
|
|
|
|
this.drawMirror = function () {
|
|
if (!this.showExtras) { return }
|
|
|
|
if (client.tool.style().mirror_style === 0) { return }
|
|
|
|
const middle = { x: client.tool.settings.size.width, y: client.tool.settings.size.height }
|
|
|
|
if (client.tool.style().mirror_style === 1 || client.tool.style().mirror_style === 3) {
|
|
this.drawRule({ x: middle.x, y: 15 * this.scale }, { x: middle.x, y: (client.tool.settings.size.height) * this.scale })
|
|
}
|
|
if (client.tool.style().mirror_style === 2 || client.tool.style().mirror_style === 3) {
|
|
this.drawRule({ x: 15 * this.scale, y: middle.y }, { x: (client.tool.settings.size.width) * this.scale, y: middle.y })
|
|
}
|
|
}
|
|
|
|
this.drawHandles = function () {
|
|
if (!this.showExtras) { return }
|
|
|
|
for (const segmentId in client.tool.layer()) {
|
|
const segment = client.tool.layer()[segmentId]
|
|
for (const vertexId in segment.vertices) {
|
|
const vertex = segment.vertices[vertexId]
|
|
this.drawHandle(vertex)
|
|
}
|
|
}
|
|
}
|
|
|
|
this.drawVertices = function () {
|
|
for (const id in client.tool.vertices) {
|
|
this.drawVertex(client.tool.vertices[id])
|
|
}
|
|
}
|
|
|
|
this.drawGrid = function () {
|
|
if (!this.showExtras) { return }
|
|
|
|
const markers = { w: parseInt(client.tool.settings.size.width / 15), h: parseInt(client.tool.settings.size.height / 15) }
|
|
|
|
this.context.beginPath()
|
|
this.context.lineWidth = 2
|
|
this.context.fillStyle = client.theme.active.b_med
|
|
for (let x = markers.w - 1; x >= 0; x--) {
|
|
for (let y = markers.h - 1; y >= 0; y--) {
|
|
const isStep = x % 4 === 0 && y % 4 === 0
|
|
// Don't draw margins
|
|
if (x === 0 || y === 0) { continue }
|
|
const pos = {
|
|
x: parseInt(x * 15),
|
|
y: parseInt(y * 15)
|
|
}
|
|
const radius = isStep ? 2.5 : 1.5
|
|
this.context.moveTo(pos.x * this.scale, pos.y * this.scale)
|
|
this.context.arc(pos.x * this.scale, pos.y * this.scale, radius, 0, 2 * Math.PI, false)
|
|
}
|
|
}
|
|
this.context.fill()
|
|
this.context.closePath()
|
|
}
|
|
|
|
this.drawRulers = function () {
|
|
if (!client.cursor.translation) { return }
|
|
|
|
const pos = client.cursor.translation.to
|
|
const bottom = (client.tool.settings.size.height * this.scale)
|
|
const right = (client.tool.settings.size.width * this.scale)
|
|
|
|
this.drawRule({ x: pos.x * this.scale, y: 0 }, { x: pos.x * this.scale, y: bottom })
|
|
this.drawRule({ x: 0, y: pos.y * this.scale }, { x: right, y: pos.y * this.scale })
|
|
}
|
|
|
|
this.drawPreview = function () {
|
|
const operation = client.cursor.operation && client.cursor.operation.cast ? client.cursor.operation.cast : null
|
|
|
|
if (!client.tool.canCast(operation)) { return }
|
|
if (operation === 'close') { return }
|
|
|
|
const path = new Generator([{ vertices: client.tool.vertices, type: operation }]).toString({ x: 0, y: 0 }, 2)
|
|
const style = {
|
|
color: client.theme.active.f_med,
|
|
thickness: 2,
|
|
strokeLinecap: 'round',
|
|
strokeLinejoin: 'round',
|
|
strokeLineDash: [5, 15]
|
|
}
|
|
this.drawPath(path, style)
|
|
}
|
|
|
|
// Elements
|
|
|
|
this.drawVertex = function (pos, radius = 5) {
|
|
this.context.beginPath()
|
|
this.context.lineWidth = 2
|
|
this.context.arc((pos.x * this.scale), (pos.y * this.scale), radius, 0, 2 * Math.PI, false)
|
|
this.context.fillStyle = client.theme.active.f_low
|
|
this.context.fill()
|
|
this.context.closePath()
|
|
}
|
|
|
|
this.drawRule = function (from, to) {
|
|
this.context.beginPath()
|
|
this.context.moveTo(from.x, from.y)
|
|
this.context.lineTo(to.x, to.y)
|
|
this.context.lineCap = 'round'
|
|
this.context.lineWidth = 3
|
|
this.context.strokeStyle = client.theme.active.b_low
|
|
this.context.stroke()
|
|
this.context.closePath()
|
|
}
|
|
|
|
this.drawHandle = function (pos, radius = 6) {
|
|
this.context.beginPath()
|
|
this.context.arc(Math.abs(pos.x * -this.scale), Math.abs(pos.y * this.scale), radius + 3, 0, 2 * Math.PI, false)
|
|
this.context.fillStyle = client.theme.active.f_high
|
|
this.context.fill()
|
|
this.context.closePath()
|
|
this.context.beginPath()
|
|
this.context.arc((pos.x * this.scale), (pos.y * this.scale), radius - 3, 0, 2 * Math.PI, false)
|
|
this.context.fillStyle = client.theme.active.b_low
|
|
this.context.fill()
|
|
this.context.closePath()
|
|
}
|
|
|
|
this.drawPath = function (path, style) {
|
|
const p = new Path2D(path)
|
|
|
|
this.context.strokeStyle = style.color
|
|
this.context.lineWidth = style.thickness * this.scale
|
|
this.context.lineCap = style.strokeLinecap
|
|
this.context.lineJoin = style.strokeLinejoin
|
|
|
|
if (style.fill && style.fill !== 'none') {
|
|
this.context.fillStyle = style.color
|
|
this.context.fill(p)
|
|
}
|
|
|
|
// Dash
|
|
this.context.save()
|
|
if (style.strokeLineDash) { this.context.setLineDash(style.strokeLineDash) } else { this.context.setLineDash([]) }
|
|
this.context.stroke(p)
|
|
this.context.restore()
|
|
}
|
|
|
|
this.drawTranslation = function () {
|
|
if (!client.cursor.translation) { return }
|
|
|
|
this.context.save()
|
|
|
|
this.context.beginPath()
|
|
this.context.moveTo((client.cursor.translation.from.x * this.scale), (client.cursor.translation.from.y * this.scale))
|
|
this.context.lineTo((client.cursor.translation.to.x * this.scale), (client.cursor.translation.to.y * this.scale))
|
|
this.context.lineCap = 'round'
|
|
this.context.lineWidth = 5
|
|
this.context.strokeStyle = client.cursor.translation.multi === true ? client.theme.active.b_inv : client.cursor.translation.copy === true ? client.theme.active.f_med : client.theme.active.f_low
|
|
this.context.setLineDash([5, 10])
|
|
this.context.stroke()
|
|
this.context.closePath()
|
|
|
|
this.context.setLineDash([])
|
|
this.context.restore()
|
|
}
|
|
|
|
this.drawCursor = function (pos = client.cursor.pos, radius = client.tool.style().thickness - 1) {
|
|
this.context.save()
|
|
|
|
this.context.beginPath()
|
|
this.context.lineWidth = 3
|
|
this.context.lineCap = 'round'
|
|
this.context.arc(Math.abs(pos.x * -this.scale), Math.abs(pos.y * this.scale), 5, 0, 2 * Math.PI, false)
|
|
this.context.strokeStyle = client.theme.active.background
|
|
this.context.stroke()
|
|
this.context.closePath()
|
|
|
|
this.context.beginPath()
|
|
this.context.lineWidth = 3
|
|
this.context.lineCap = 'round'
|
|
this.context.arc(Math.abs(pos.x * -this.scale), Math.abs(pos.y * this.scale), clamp(radius, 5, 100), 0, 2 * Math.PI, false)
|
|
this.context.strokeStyle = client.theme.active.f_med
|
|
this.context.stroke()
|
|
this.context.closePath()
|
|
|
|
this.context.restore()
|
|
}
|
|
|
|
this.drawRender = function (render) {
|
|
this.context.drawImage(render, 0, 0, this.el.width, this.el.height)
|
|
}
|
|
|
|
function printSize (size) { return `${size.width}x${size.height}` }
|
|
function sizeOffset (a, b) { return { width: a.width - b.width, height: a.height - b.height } }
|
|
function clamp (v, min, max) { return v < min ? min : v > max ? max : v }
|
|
}
|