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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,215 @@ | ||
| Q5.modules.q2d_canvas = ($) => { | ||
| let ctx = $.ctx; | ||
|
|
||
| let _OffscreenCanvas = | ||
| window.OffscreenCanvas || | ||
| function () { | ||
| return document.createElement('canvas'); | ||
| }; | ||
|
|
||
| if (Q5._nodejs) { | ||
| if (Q5._createNodeJSCanvas) { | ||
| $.canvas = Q5._createNodeJSCanvas(100, 100); | ||
| } | ||
| } else if (scope == 'image' || scope == 'graphics') { | ||
| $.canvas = new _OffscreenCanvas(100, 100); | ||
| } | ||
| if (!$.canvas) { | ||
| if (typeof document == 'object') { | ||
| $.canvas = document.createElement('canvas'); | ||
| $.canvas.id = 'defaultCanvas' + Q5._instanceCount++; | ||
| $.canvas.classList.add('p5Canvas', 'q5Canvas'); | ||
| } else { | ||
| $.noCanvas(); | ||
| } | ||
| } | ||
|
|
||
| $.canvas.width = $.width = 100; | ||
| $.canvas.height = $.height = 100; | ||
|
|
||
| if ($.canvas && scope != 'graphics' && scope != 'image') { | ||
| $._setupDone = false; | ||
| $._resize = () => { | ||
| if ($.frameCount > 1) $._shouldResize = true; | ||
| }; | ||
| if (parent && typeof parent == 'string') { | ||
| parent = document.getElementById(parent); | ||
| } | ||
| $.canvas.parent = (el) => { | ||
| if (typeof el == 'string') el = document.getElementById(el); | ||
| el.append($.canvas); | ||
|
|
||
| if (typeof ResizeObserver == 'function') { | ||
| if ($._ro) $._ro.disconnect(); | ||
| $._ro = new ResizeObserver($._resize); | ||
| $._ro.observe(parent); | ||
| } else if (!$.frameCount) { | ||
| window.addEventListener('resize', $._resize); | ||
| } | ||
| }; | ||
| function appendCanvas() { | ||
| parent ??= document.getElementsByTagName('main')[0]; | ||
| if (!parent) { | ||
| parent = document.createElement('main'); | ||
| document.body.append(parent); | ||
| } | ||
| $.canvas.parent(parent); | ||
| } | ||
| if (document.body) appendCanvas(); | ||
| else document.addEventListener('DOMContentLoaded', appendCanvas); | ||
| } | ||
|
|
||
| $.createCanvas = function (width, height, renderer, options) { | ||
| if (renderer == 'webgl') throw Error(`webgl renderer is not supported in q5, use '2d'`); | ||
| if (typeof renderer == 'object') options = renderer; | ||
| $.width = $.canvas.width = width || window.innerWidth; | ||
| $.height = $.canvas.height = height || window.innerHeight; | ||
| $.canvas.renderer = '2d'; | ||
| let opt = Object.assign({}, Q5.canvasOptions); | ||
| if (options) Object.assign(opt, options); | ||
|
|
||
| ctx = $.ctx = $.drawingContext = $.canvas.getContext('2d', opt); | ||
| Object.assign($.canvas, opt); | ||
| if ($._colorMode == 'rgb') $.colorMode('rgb'); | ||
| defaultStyle(); | ||
| ctx.save(); | ||
| if (scope != 'image') { | ||
| let pd = $.displayDensity(); | ||
| if (scope == 'graphics') pd = this._pixelDensity; | ||
| $.pixelDensity(Math.ceil(pd)); | ||
| } else this._pixelDensity = 1; | ||
| return $.canvas; | ||
| }; | ||
| $._createCanvas = $.createCanvas; | ||
|
|
||
| if (scope == 'image') return; | ||
|
|
||
| function cloneCtx() { | ||
| let c = {}; | ||
| for (let prop in ctx) { | ||
| if (typeof ctx[prop] != 'function') c[prop] = ctx[prop]; | ||
| } | ||
| delete c.canvas; | ||
| return c; | ||
| } | ||
|
|
||
| function _resizeCanvas(w, h) { | ||
| w ??= window.innerWidth; | ||
| h ??= window.innerHeight; | ||
| $.width = w; | ||
| $.height = h; | ||
| let c = cloneCtx(); | ||
| $.canvas.width = Math.ceil(w * $._pixelDensity); | ||
| $.canvas.height = Math.ceil(h * $._pixelDensity); | ||
| if (!$.canvas.fullscreen && $.canvas.style) { | ||
| $.canvas.style.width = w + 'px'; | ||
| $.canvas.style.height = h + 'px'; | ||
| } | ||
| for (let prop in c) $.ctx[prop] = c[prop]; | ||
| ctx.scale($._pixelDensity, $._pixelDensity); | ||
| } | ||
|
|
||
| $.resizeCanvas = (w, h) => { | ||
| if (w == $.width && h == $.height) return; | ||
| _resizeCanvas(w, h); | ||
| }; | ||
|
|
||
| $.createGraphics = function (w, h, opt) { | ||
| let g = new Q5('graphics'); | ||
| opt ??= {}; | ||
| opt.alpha ??= true; | ||
| g._createCanvas.call($, w, h, opt); | ||
| return g; | ||
| }; | ||
|
|
||
| $._pixelDensity = 1; | ||
| $.displayDensity = () => window.devicePixelRatio; | ||
| $.pixelDensity = (v) => { | ||
| if (!v || v == $._pixelDensity) return $._pixelDensity; | ||
| $._pixelDensity = v; | ||
| _resizeCanvas($.width, $.height); | ||
| return v; | ||
| }; | ||
|
|
||
| $.fullscreen = (v) => { | ||
| if (v === undefined) return document.fullscreenElement; | ||
| if (v) document.body.requestFullscreen(); | ||
| else document.body.exitFullscreen(); | ||
| }; | ||
|
|
||
| // DRAWING MATRIX | ||
|
|
||
| $.translate = (x, y) => ctx.translate(x, y); | ||
| $.rotate = (r) => { | ||
| if ($._angleMode == 'degrees') r = $.radians(r); | ||
| ctx.rotate(r); | ||
| }; | ||
| $.scale = (x, y) => { | ||
| y ??= x; | ||
| ctx.scale(x, y); | ||
| }; | ||
| $.opacity = (a) => (ctx.globalAlpha = a); | ||
| $.applyMatrix = (a, b, c, d, e, f) => ctx.transform(a, b, c, d, e, f); | ||
| $.shearX = (ang) => ctx.transform(1, 0, $.tan(ang), 1, 0, 0); | ||
| $.shearY = (ang) => ctx.transform(1, $.tan(ang), 0, 1, 0, 0); | ||
| $.resetMatrix = () => { | ||
| ctx.resetTransform(); | ||
| ctx.scale($._pixelDensity, $._pixelDensity); | ||
| }; | ||
|
|
||
| $._styleNames = [ | ||
| '_doStroke', | ||
| '_doFill', | ||
| '_strokeSet', | ||
| '_fillSet', | ||
| '_tint', | ||
| '_imageMode', | ||
| '_rectMode', | ||
| '_ellipseMode', | ||
| '_textFont', | ||
| '_textLeading', | ||
| '_leadingSet', | ||
| '_textSize', | ||
| '_textAlign', | ||
| '_textBaseline', | ||
| '_textStyle', | ||
| '_textWrap' | ||
| ]; | ||
| $._styles = []; | ||
|
|
||
| $.push = $.pushMatrix = () => { | ||
| ctx.save(); | ||
| let styles = {}; | ||
| for (let s of $._styleNames) styles[s] = $[s]; | ||
| $._styles.push(styles); | ||
| }; | ||
| $.pop = $.popMatrix = () => { | ||
| ctx.restore(); | ||
| let styles = $._styles.pop(); | ||
| for (let s of $._styleNames) $[s] = styles[s]; | ||
| }; | ||
|
|
||
| $.createCapture = (x) => { | ||
| var vid = document.createElement('video'); | ||
| vid.playsinline = 'playsinline'; | ||
| vid.autoplay = 'autoplay'; | ||
| navigator.mediaDevices.getUserMedia(x).then((stream) => { | ||
| vid.srcObject = stream; | ||
| }); | ||
| vid.style.position = 'absolute'; | ||
| vid.style.opacity = 0.00001; | ||
| vid.style.zIndex = -1000; | ||
| document.body.append(vid); | ||
| return vid; | ||
| }; | ||
| }; | ||
|
|
||
| Q5.canvasOptions = { | ||
| alpha: false, | ||
| desynchronized: false, | ||
| colorSpace: 'display-p3' | ||
| }; | ||
|
|
||
| if (!window.matchMedia || !matchMedia('(dynamic-range: high) and (color-gamut: p3)').matches) { | ||
| Q5.canvasOptions.colorSpace = 'srgb'; | ||
| } else Q5.supportsHDR = true; |
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