"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.CommonMfracMixin = void 0;
function CommonMfracMixin(Base) {
return (function (_super) {
__extends(class_1, _super);
function class_1() {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var _this = _super.apply(this, __spreadArray([], __read(args), false)) || this;
_this.bevel = null;
_this.pad = (_this.node.getProperty('withDelims') ? 0 : _this.font.params.nulldelimiterspace);
if (_this.node.attributes.get('bevelled')) {
var H = _this.getBevelData(_this.isDisplay()).H;
var bevel = _this.bevel = _this.createMo('/');
bevel.node.attributes.set('symmetric', true);
bevel.canStretch(1);
bevel.getStretchedVariant([H], true);
}
return _this;
}
class_1.prototype.computeBBox = function (bbox, recompute) {
if (recompute === void 0) { recompute = false; }
bbox.empty();
var _a = this.node.attributes.getList('linethickness', 'bevelled'), linethickness = _a.linethickness, bevelled = _a.bevelled;
var display = this.isDisplay();
var w = null;
if (bevelled) {
this.getBevelledBBox(bbox, display);
}
else {
var thickness = this.length2em(String(linethickness), .06);
w = -2 * this.pad;
if (thickness === 0) {
this.getAtopBBox(bbox, display);
}
else {
this.getFractionBBox(bbox, display, thickness);
w -= .2;
}
w += bbox.w;
}
bbox.clean();
this.setChildPWidths(recompute, w);
};
class_1.prototype.getFractionBBox = function (bbox, display, t) {
var nbox = this.childNodes[0].getOuterBBox();
var dbox = this.childNodes[1].getOuterBBox();
var tex = this.font.params;
var a = tex.axis_height;
var _a = this.getTUV(display, t), T = _a.T, u = _a.u, v = _a.v;
bbox.combine(nbox, 0, a + T + Math.max(nbox.d * nbox.rscale, u));
bbox.combine(dbox, 0, a - T - Math.max(dbox.h * dbox.rscale, v));
bbox.w += 2 * this.pad + .2;
};
class_1.prototype.getTUV = function (display, t) {
var tex = this.font.params;
var a = tex.axis_height;
var T = (display ? 3.5 : 1.5) * t;
return { T: (display ? 3.5 : 1.5) * t,
u: (display ? tex.num1 : tex.num2) - a - T,
v: (display ? tex.denom1 : tex.denom2) + a - T };
};
class_1.prototype.getAtopBBox = function (bbox, display) {
var _a = this.getUVQ(display), u = _a.u, v = _a.v, nbox = _a.nbox, dbox = _a.dbox;
bbox.combine(nbox, 0, u);
bbox.combine(dbox, 0, -v);
bbox.w += 2 * this.pad;
};
class_1.prototype.getUVQ = function (display) {
var nbox = this.childNodes[0].getOuterBBox();
var dbox = this.childNodes[1].getOuterBBox();
var tex = this.font.params;
var _a = __read((display ? [tex.num1, tex.denom1] : [tex.num3, tex.denom2]), 2), u = _a[0], v = _a[1];
var p = (display ? 7 : 3) * tex.rule_thickness;
var q = (u - nbox.d * nbox.scale) - (dbox.h * dbox.scale - v);
if (q < p) {
u += (p - q) / 2;
v += (p - q) / 2;
q = p;
}
return { u: u, v: v, q: q, nbox: nbox, dbox: dbox };
};
class_1.prototype.getBevelledBBox = function (bbox, display) {
var _a = this.getBevelData(display), u = _a.u, v = _a.v, delta = _a.delta, nbox = _a.nbox, dbox = _a.dbox;
var lbox = this.bevel.getOuterBBox();
bbox.combine(nbox, 0, u);
bbox.combine(lbox, bbox.w - delta / 2, 0);
bbox.combine(dbox, bbox.w - delta / 2, v);
};
class_1.prototype.getBevelData = function (display) {
var nbox = this.childNodes[0].getOuterBBox();
var dbox = this.childNodes[1].getOuterBBox();
var delta = (display ? .4 : .15);
var H = Math.max(nbox.scale * (nbox.h + nbox.d), dbox.scale * (dbox.h + dbox.d)) + 2 * delta;
var a = this.font.params.axis_height;
var u = nbox.scale * (nbox.d - nbox.h) / 2 + a + delta;
var v = dbox.scale * (dbox.d - dbox.h) / 2 + a - delta;
return { H: H, delta: delta, u: u, v: v, nbox: nbox, dbox: dbox };
};
class_1.prototype.canStretch = function (_direction) {
return false;
};
class_1.prototype.isDisplay = function () {
var _a = this.node.attributes.getList('displaystyle', 'scriptlevel'), displaystyle = _a.displaystyle, scriptlevel = _a.scriptlevel;
return displaystyle && scriptlevel === 0;
};
class_1.prototype.getWrapWidth = function (i) {
var attributes = this.node.attributes;
if (attributes.get('bevelled')) {
return this.childNodes[i].getOuterBBox().w;
}
var w = this.getBBox().w;
var thickness = this.length2em(attributes.get('linethickness'));
return w - (thickness ? .2 : 0) - 2 * this.pad;
};
class_1.prototype.getChildAlign = function (i) {
var attributes = this.node.attributes;
return (attributes.get('bevelled') ? 'left' : attributes.get(['numalign', 'denomalign'][i]));
};
return class_1;
}(Base));
}
exports.CommonMfracMixin = CommonMfracMixin;
//# sourceMappingURL=mfrac.js.map