312 lines
11 KiB
JavaScript
312 lines
11 KiB
JavaScript
/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/*************************************************************
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*
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* MathJax/jax/output/CommonHTML/autoload/menclose.js
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*
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* Implements the CommonHTML output for <menclose> elements.
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2015 The MathJax Consortium
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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MathJax.Hub.Register.StartupHook("CommonHTML Jax Ready",function () {
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var VERSION = "2.5.0";
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var MML = MathJax.ElementJax.mml,
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HTML = MathJax.HTML,
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CHTML = MathJax.OutputJax.CommonHTML;
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var SVGNS = "http://www.w3.org/2000/svg";
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var ARROWX = 4, ARROWDX = 1, ARROWY = 2;
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MML.menclose.Augment({
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toCommonHTML: function (node) {
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var values = this.getValues("notation","thickness","padding");
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if (values.thickness == null) values.thickness = ".075em";
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if (values.padding == null) values.padding = ".2em";
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//
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// Get DOM nodes
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//
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node = this.CHTMLdefaultNode(node,{childNodes:"mjx-box", forceChild:true});
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var child = node.firstChild, cbox = this.CHTMLbboxFor(0);
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//
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// Get the padding and rule thickness
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//
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var p = this.CHTMLlength2em(values.padding,1/CHTML.em); // padding for enclosure
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var t = this.CHTMLlength2em(values.thickness,1/CHTML.em); // thickness of lines
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t = Math.max(1,Math.round(t*CHTML.em))/CHTML.em;
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var SOLID = CHTML.Px(t)+" solid";
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var bb = {L:p, R:p, T:p, B:p, H:cbox.h+p, D:cbox.d+p, W:cbox.w+2*p};
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child.style.padding = CHTML.Em(p);
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//
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// Eliminate duplicate notations.
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//
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var notations = MathJax.Hub.SplitList(values.notation), notation = {};
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for (var i = 0, m = notations.length; i < m; i++) notation[notations[i]] = true;
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if (notation[MML.NOTATION.UPDIAGONALARROW]) delete notation[MML.NOTATION.UPDIAGONALSTRIKE];
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//
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// Add the needed notations
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//
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for (var n in notation) {
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if (notation.hasOwnProperty(n)) {
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if (this.CHTMLnotation[n] && this.CHTMLnotation.hasOwnProperty(n))
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this.CHTMLnotation[n].call(this,child,cbox,bb,p,t,SOLID);
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}
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}
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//
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// Adjust the bounding box
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//
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var BBOX = this.CHTML;
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BBOX.w += bb.L + bb.R; BBOX.r += BBOX.L; if (BBOX.w > BBOX.r) BBOX.r = BBOX.w;
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BBOX.h += bb.T; if (BBOX.h > BBOX.t) BBOX.t = BBOX.h;
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BBOX.d += bb.B; if (BBOX.d > BBOX.b) BBOX.b = BBOX.d;
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return node;
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},
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//
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// The various notations and their implementations
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//
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CHTMLnotation: {
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/********************************************************/
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box: function (child,cbox,bb,p,t,SOLID) {
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p -= t;
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child.style.padding = CHTML.Em(p);
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child.style.border = SOLID;
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},
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/********************************************************/
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roundedbox: function (child,cbox,bb,p,t,SOLID) {
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var r = Math.min(cbox.w,cbox.h+cbox.d+2*p)/4;
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CHTML.addElement(child.parentNode,"mjx-box",{
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style: {
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padding:CHTML.Em(p-t), border:SOLID, "border-radius":CHTML.Em(r),
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height:CHTML.Em(cbox.h+cbox.d), "vertical-align":CHTML.Em(-bb.D),
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width:CHTML.Em(cbox.w), "margin-left":CHTML.Em(-bb.W)
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}
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});
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},
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/********************************************************/
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circle: function (child,cbox,bb,p,t,SOLID) {
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var H = bb.H, D = bb.D, W = bb.W;
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svg = this.CHTMLsvg(child,bb,t);
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this.CHTMLsvgElement(svg.firstChild,"ellipse",{
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rx:CHTML.Px(W/2-t/2), ry:CHTML.Px((H+D)/2-t/2),
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cx:CHTML.Px(W/2), cy:CHTML.Px((H+D)/2)
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});
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},
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/********************************************************/
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left: function (child,cbox,bb,p,t,SOLID) {
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child.style.borderLeft = SOLID;
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child.style.paddingLeft = CHTML.Em(p-t);
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},
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/********************************************************/
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right: function (child,cbox,bb,p,t,SOLID) {
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child.style.borderRight = SOLID;
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child.style.paddingRight = CHTML.Em(p-t);
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},
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/********************************************************/
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top: function (child,cbox,bb,p,t,SOLID) {
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child.style.borderTop = SOLID;
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child.style.paddingTop = CHTML.Em(p-t);
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},
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/********************************************************/
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bottom: function (child,cbox,bb,p,t,SOLID) {
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child.style.borderBottom = SOLID;
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child.style.paddingBottom = CHTML.Em(p-t);
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},
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/********************************************************/
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actuarial: function (child,cbox,bb,p,t,SOLID) {
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child.style.borderTop = child.style.borderRight = SOLID;
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child.style.paddingTop = child.style.paddingRight = CHTML.Em(p-t);
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},
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/********************************************************/
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madruwb: function (child,cbox,bb,p,t,SOLID) {
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child.style.borderBottom = child.style.borderRight = SOLID;
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child.style.paddingBottom = child.style.paddingRight = CHTML.Em(p-t);
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},
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/********************************************************/
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verticalstrike: function (child,cbox,bb,p,t,SOLID) {
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CHTML.addElement(child.parentNode,"mjx-box",{
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style: {
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"border-left":SOLID,
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height:CHTML.Em(bb.H+bb.D), "vertical-align":CHTML.Em(-bb.D),
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width:CHTML.Em(cbox.w/2+p-t/2), "margin-left":CHTML.Em(-cbox.w/2-p-t/2)
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}
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});
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},
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/********************************************************/
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horizontalstrike: function (child,cbox,bb,p,t,SOLID) {
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CHTML.addElement(child.parentNode,"mjx-box",{
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style: {
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"border-top":SOLID,
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height:CHTML.Em((bb.H+bb.D)/2-t/2), "vertical-align":CHTML.Em(-bb.D),
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width:CHTML.Em(bb.W), "margin-left":CHTML.Em(-bb.W)
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}
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});
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},
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/********************************************************/
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updiagonalstrike: function (child,cbox,bb,p,t,SOLID) {
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var H = bb.H, D = bb.D, W = bb.W;
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svg = this.CHTMLsvg(child,bb,t);
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this.CHTMLsvgElement(svg.firstChild,"line",{
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x1:CHTML.Px(t/2), y1:CHTML.Px(H+D-t), x2:CHTML.Px(W-t), y2:CHTML.Px(t/2)
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});
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},
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/********************************************************/
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downdiagonalstrike: function (child,cbox,bb,p,t,SOLID) {
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var H = bb.H, D = bb.D, W = bb.W;
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svg = this.CHTMLsvg(child,bb,t);
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this.CHTMLsvgElement(svg.firstChild,"line",{
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x1:CHTML.Px(t/2), y1:CHTML.Px(t/2), x2:CHTML.Px(W-t), y2:CHTML.Px(H+D-t)
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});
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},
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/********************************************************/
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updiagonalarrow: function (child,cbox,bb,p,t,SOLID) {
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var H = bb.H + bb.D - t, W = bb.W - t/2;
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var a = Math.atan2(H,W)*(-180/Math.PI).toFixed(3);
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var R = Math.sqrt(H*H + W*W);
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svg = this.CHTMLsvg(child,bb,t);
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var g = this.CHTMLsvgElement(svg.firstChild,"g",{
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fill:"currentColor",
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transform:"translate("+this.CHTMLpx(t/2)+" "+this.CHTMLpx(H+t/2)+") rotate("+a+")"
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});
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var x = t * ARROWX, dx = t * ARROWDX, y = t * ARROWY;
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this.CHTMLsvgElement(g,"line",{
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x1:CHTML.Px(t/2), y1:0, x2:CHTML.Px(R-x), y2:0
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});
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this.CHTMLsvgElement(g,"path",{
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d: "M "+this.CHTMLpx(R-x)+",0 " +
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"L "+this.CHTMLpx(R-x-dx)+","+this.CHTMLpx(y) +
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"L "+this.CHTMLpx(R)+",0 " +
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"L "+this.CHTMLpx(R-x-dx)+","+this.CHTMLpx(-y),
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stroke:"none"
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});
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},
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/********************************************************/
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phasorangle: function (child,cbox,bb,p,t,SOLID) {
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var P = p, H = bb.H, D = bb.D, p = (H+D)/2, W = bb.W + p - P; bb.W = W; bb.L = p;
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child.style.margin = "0 0 0 "+CHTML.Em(p-P);
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svg = this.CHTMLsvg(child,bb,t);
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this.CHTMLsvgElement(svg.firstChild,"path",{
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d: "M "+this.CHTMLpx(p)+",1 " +
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"L 1,"+this.CHTMLpx(H+D-t)+" L "+this.CHTMLpx(W)+","+this.CHTMLpx(H+D-t)
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});
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},
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/********************************************************/
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longdiv: function (child,cbox,bb,p,t,SOLID) {
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bb.W += 1.5*p; bb.L += 1.5*p;
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var H = bb.H, D = bb.D, W = bb.W;
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child.style.margin = "0 0 0 "+CHTML.Em(1.5*p);
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svg = this.CHTMLsvg(child,bb,t);
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this.CHTMLsvgElement(svg.firstChild,"path",{
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d: "M "+this.CHTMLpx(W)+",1 L 1,1 "+
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"a"+this.CHTMLpx(p)+","+this.CHTMLpx((H+D)/2-t/2)+" 0 0,1 1,"+this.CHTMLpx(H+D-1.5*t)
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});
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},
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/********************************************************/
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radical: function (child,cbox,bb,p,t,SOLID) {
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bb.W += 1.5*p; bb.L += 1.5*p;
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var H = bb.H, D = bb.D, W = bb.W;
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child.style.margin = "0 0 0 "+CHTML.Em(1.5*p);
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svg = this.CHTMLsvg(child,bb,t);
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this.CHTMLsvgElement(svg.firstChild,"path",{
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d: "M 1,"+this.CHTMLpx(.6*(H+D)) +
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" L "+this.CHTMLpx(p)+","+this.CHTMLpx(H+D) +
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" L "+this.CHTMLpx(2*p)+",1 L "+this.CHTMLpx(W)+",1"
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});
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}
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/********************************************************/
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},
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//
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// Pixels with no "px"
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//
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CHTMLpx: function (m) {
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m *= CHTML.em;
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if (Math.abs(m) < .1) return "0";
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return m.toFixed(1).replace(/\.0$/,"");
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},
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//
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// Create the SVG element and position it over the
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// contents
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//
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CHTMLsvg: function (node,bbox,t) {
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if (!svg) {
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var svg = document.createElementNS(SVGNS,"svg");
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if (svg.style) {
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svg.style.width = CHTML.Em(bbox.W);
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svg.style.height = CHTML.Em(bbox.H+bbox.D);
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svg.style.verticalAlign = CHTML.Em(-bbox.D);
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svg.style.marginLeft = CHTML.Em(-bbox.W);
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}
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this.CHTMLsvgElement(svg,"g",{"stroke-width":CHTML.Px(t)});
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node.parentNode.appendChild(svg);
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}
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return svg;
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},
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//
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// Add an SVG element to the given svg node
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//
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CHTMLsvgElement: function (svg,type,def) {
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var obj = document.createElementNS(SVGNS,type); obj.isMathJax = true;
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if (def) {for (var id in def) {if (def.hasOwnProperty(id)) {obj.setAttributeNS(null,id,def[id].toString())}}}
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svg.appendChild(obj);
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return obj;
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}
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});
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MathJax.Hub.Startup.signal.Post("CommonHTML menclose Ready");
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MathJax.Ajax.loadComplete(CHTML.autoloadDir+"/menclose.js");
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});
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