/*
 * (c) Copyright Ascensio System SIA 2010-2015
 *
 * This program is a free software product. You can redistribute it and/or 
 * modify it under the terms of the GNU Affero General Public License (AGPL) 
 * version 3 as published by the Free Software Foundation. In accordance with 
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect 
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied 
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For 
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
 * EU, LV-1021.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under 
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 */
 "use strict";
var MATH_MC_JC = MCJC_CENTER;
function CMathMatrixColumnPr() {
    this.count = 1;
    this.mcJc = MCJC_CENTER;
}
CMathMatrixColumnPr.prototype.Set_FromObject = function (Obj) {
    if (undefined !== Obj.count && null !== Obj.count) {
        this.count = Obj.count;
    } else {
        this.count = 1;
    }
    if (MCJC_LEFT === Obj.mcJc || MCJC_RIGHT === Obj.mcJc || MCJC_CENTER === Obj.mcJc) {
        this.mcJc = Obj.mcJc;
    } else {
        this.mcJc = MCJC_CENTER;
    }
};
CMathMatrixColumnPr.prototype.Copy = function () {
    var NewPr = new CMathMatrixColumnPr();
    NewPr.count = this.count;
    NewPr.mcJc = this.mcJc;
    return NewPr;
};
CMathMatrixColumnPr.prototype.Write_ToBinary = function (Writer) {
    Writer.WriteLong(this.count);
    Writer.WriteLong(this.mcJc);
};
CMathMatrixColumnPr.prototype.Read_FromBinary = function (Reader) {
    this.count = Reader.GetLong();
    this.mcJc = Reader.GetLong();
};
function CMathMatrixPr() {
    this.row = 1;
    this.cGp = 0;
    this.cGpRule = 0;
    this.cSp = 0;
    this.rSp = 0;
    this.rSpRule = 0;
    this.mcs = [];
    this.baseJc = BASEJC_CENTER;
    this.plcHide = false;
}
CMathMatrixPr.prototype.Set_FromObject = function (Obj) {
    if (undefined !== Obj.row && null !== Obj.row) {
        this.row = Obj.row;
    }
    if (undefined !== Obj.cGp && null !== Obj.cGp) {
        this.cGp = Obj.cGp;
    }
    if (undefined !== Obj.cGpRule && null !== Obj.cGpRule) {
        this.cGpRule = Obj.cGpRule;
    }
    if (undefined !== Obj.cSp && null !== Obj.cSp) {
        this.cSp = Obj.cSp;
    }
    if (undefined !== Obj.rSpRule && null !== Obj.rSpRule) {
        this.rSpRule = Obj.rSpRule;
    }
    if (undefined !== Obj.rSp && null !== Obj.rSp) {
        this.rSp = Obj.rSp;
    }
    if (true === Obj.plcHide || 1 === Obj.plcHide) {
        this.plcHide = true;
    } else {
        this.plcHide = false;
    }
    if (BASEJC_CENTER === Obj.baseJc || BASEJC_TOP === Obj.baseJc || BASEJC_BOTTOM === Obj.baseJc) {
        this.baseJc = Obj.baseJc;
    }
    var nColumnsCount = 0;
    if (undefined !== Obj.mcs.length) {
        var nMcsCount = Obj.mcs.length;
        if (0 !== nMcsCount) {
            this.mcs.length = nMcsCount;
            for (var nMcsIndex = 0; nMcsIndex < nMcsCount; nMcsIndex++) {
                this.mcs[nMcsIndex] = new CMathMatrixColumnPr();
                this.mcs[nMcsIndex].Set_FromObject(Obj.mcs[nMcsIndex]);
                nColumnsCount += this.mcs[nMcsIndex].count;
            }
        } else {
            if (undefined !== Obj.column) {
                nColumnsCount = Obj.column;
            }
        }
    }
    return nColumnsCount;
};
CMathMatrixPr.prototype.Copy = function () {
    var NewPr = new CMathMatrixPr();
    NewPr.row = this.row;
    NewPr.cGp = this.cGp;
    NewPr.cGpRule = this.cGpRule;
    NewPr.cSp = this.cSp;
    NewPr.rSp = this.rSp;
    NewPr.rSpRule = this.rSpRule;
    NewPr.baseJc = this.baseJc;
    NewPr.plcHide = this.plcHide;
    var nCount = this.mcs.length;
    for (var nMcsIndex = 0; nMcsIndex < nCount; nMcsIndex++) {
        NewPr.mcs[nMcsIndex] = this.mcs[nMcsIndex].Copy();
    }
    return NewPr;
};
CMathMatrixPr.prototype.Get_ColumnsCount = function () {
    var nColumnsCount = 0;
    for (var nMcsIndex = 0, nMcsCount = this.mcs.length; nMcsIndex < nMcsCount; nMcsIndex++) {
        nColumnsCount += this.mcs[nMcsIndex].count;
    }
    return nColumnsCount;
};
CMathMatrixPr.prototype.Write_ToBinary = function (Writer) {
    Writer.WriteLong(this.row);
    Writer.WriteLong(this.cGp);
    Writer.WriteLong(this.cGpRule);
    Writer.WriteLong(this.rSp);
    Writer.WriteLong(this.rSpRule);
    Writer.WriteLong(this.baseJc);
    Writer.WriteBool(this.plcHide);
    var nMcsCount = this.mcs.length;
    Writer.WriteLong(nMcsCount);
    for (var nIndex = 0; nIndex < nMcsCount; nIndex++) {
        this.mcs[nIndex].Write_ToBinary(Writer);
    }
};
CMathMatrixPr.prototype.Read_FromBinary = function (Reader) {
    this.row = Reader.GetLong();
    this.cGp = Reader.GetLong();
    this.cGpRule = Reader.GetLong();
    this.rSp = Reader.GetLong();
    this.rSpRule = Reader.GetLong();
    this.baseJc = Reader.GetLong();
    this.plcHide = Reader.GetBool();
    var nMcsCount = Reader.GetLong();
    this.mcs.length = nMcsCount;
    for (var nIndex = 0; nIndex < nMcsCount; nIndex++) {
        this.mcs[nIndex] = new CMathMatrixColumnPr();
        this.mcs[nIndex].Read_FromBinary(Reader);
    }
};
function CMatrixBase() {
    CMatrixBase.superclass.constructor.call(this);
}
Asc.extendClass(CMatrixBase, CMathBase);
CMatrixBase.prototype.recalculateSize = function (oMeasure, RPI) {
    if (this.RecalcInfo.bProps) {
        if (this.nRow > 1) {
            this.setRuleGap(this.spaceRow, this.Pr.rSpRule, this.Pr.rSp);
        }
        if (this.nCol > 1) {
            this.setRuleGap(this.spaceColumn, this.Pr.cGpRule, this.Pr.cGp, this.Pr.cSp);
        }
        if (this.kind == MATH_MATRIX) {
            if (this.Pr.mcs !== undefined) {
                var lng = this.Pr.mcs.length;
                var col = 0;
                this.alignment.wdt.length = 0;
                for (var j = 0; j < lng; j++) {
                    var mc = this.Pr.mcs[j],
                    count = mc.count;
                    for (var i = 0; i < count; i++) {
                        this.alignment.wdt[col] = mc.mcJc;
                        col++;
                    }
                }
            }
            if (this.Pr.plcHide) {
                this.hidePlaceholder(true);
            }
        }
        this.RecalcInfo.bProps = false;
    }
    var FontSize = this.Get_TxtPrControlLetter().FontSize;
    var metrics = this.getMetrics();
    if (this.nCol > 1) {
        var gapsCol = this.getLineGap(this.spaceColumn, FontSize);
        for (var i = 0; i < this.nCol - 1; i++) {
            this.gaps.column[i] = gapsCol;
        }
    }
    this.gaps.column[this.nCol - 1] = 0;
    if (this.nRow > 1) {
        var intervalRow = this.getRowSpace(this.spaceRow, FontSize);
        var divCenter = 0;
        var plH = 0.2743827160493827 * FontSize;
        var minGp = this.spaceRow.minGap * FontSize * g_dKoef_pt_to_mm;
        minGp -= plH;
        for (var j = 0; j < this.nRow - 1; j++) {
            divCenter = intervalRow - (metrics.descents[j] + metrics.ascents[j + 1]);
            this.gaps.row[j] = minGp > divCenter ? minGp : divCenter;
        }
    }
    this.gaps.row[this.nRow - 1] = 0;
    var height = 0,
    width = 0;
    for (var i = 0; i < this.nCol; i++) {
        width += this.gaps.column[i] + metrics.widths[i];
    }
    for (var j = 0; j < this.nRow; j++) {
        height += this.gaps.row[j] + metrics.ascents[j] + metrics.descents[j];
    }
    var ascent = 0;
    if (this.Pr.baseJc == BASEJC_TOP) {
        for (var j = 0; j < this.nCol; j++) {
            ascent = this.elements[0][j].size.ascent > ascent ? this.elements[0][j].size.ascent : ascent;
        }
    } else {
        if (this.Pr.baseJc == BASEJC_BOTTOM) {
            var descent = 0,
            currDsc;
            for (var j = 0; j < this.nCol; j++) {
                currDsc = this.elements[this.nRow - 1][j].size.height - this.elements[this.nRow - 1][j].size.ascent;
                descent = currDsc > descent ? currDsc : descent;
                ascent = height - descent;
            }
        } else {
            ascent = this.getAscent(oMeasure, height);
        }
    }
    width += this.GapLeft + this.GapRight;
    this.size = {
        width: width,
        height: height,
        ascent: ascent
    };
};
CMatrixBase.prototype.baseJustification = function (type) {
    this.Pr.baseJc = type;
};
CMatrixBase.prototype.setDefaultSpace = function () {
    this.spaceRow = {
        rule: 0,
        gap: 0,
        minGap: 13 / 12
    };
    this.spaceColumn = {
        rule: 0,
        gap: 0,
        minGap: 0
    };
    this.gaps = {
        row: [],
        column: []
    };
};
CMatrixBase.prototype.setRuleGap = function (oSpace, rule, gap, minGap) {
    var bInt = rule == rule - 0 && rule == rule ^ 0,
    bRule = rule >= 0 && rule <= 4;
    if (bInt && bRule) {
        oSpace.rule = rule;
    } else {
        oSpace.rule = 0;
    }
    if (gap == gap - 0 && gap == gap ^ 0) {
        oSpace.gap = gap;
    } else {
        oSpace.gap = 0;
    }
    if (minGap == minGap - 0 && minGap == minGap ^ 0) {
        oSpace.minGap = minGap;
    }
};
CMatrixBase.prototype.getLineGap = function (spaceColumn, FontSize) {
    var spLine;
    if (spaceColumn.rule == 0) {
        spLine = 1;
    } else {
        if (spaceColumn.rule == 1) {
            spLine = 1.5;
        } else {
            if (spaceColumn.rule == 2) {
                spLine = 2;
            } else {
                if (spaceColumn.rule == 3) {
                    spLine = spaceColumn.gap / 20;
                } else {
                    if (spaceColumn.rule == 4) {
                        spLine = spaceColumn.gap / 2;
                    } else {
                        spLine = 1;
                    }
                }
            }
        }
    }
    var lineGap;
    if (spaceColumn.rule == 3) {
        lineGap = spLine * g_dKoef_pt_to_mm;
    } else {
        lineGap = spLine * FontSize * g_dKoef_pt_to_mm;
    }
    var wPlh = 0.3241834852430555 * FontSize;
    var min = spaceColumn.minGap / 20 * g_dKoef_pt_to_mm - wPlh;
    lineGap = Math.max(lineGap, min);
    return lineGap;
};
CMatrixBase.prototype.getRowSpace = function (spaceRow, FontSize) {
    var spLine;
    if (spaceRow.rule == 0) {
        spLine = 7 / 6;
    } else {
        if (spaceRow.rule == 1) {
            spLine = 7 / 6 * 1.5;
        } else {
            if (spaceRow.rule == 2) {
                spLine = 7 / 6 * 2;
            } else {
                if (spaceRow.rule == 3) {
                    spLine = spaceRow.gap / 20;
                } else {
                    if (spaceRow.rule == 4) {
                        spLine = 7 / 6 * spaceRow.gap / 2;
                    } else {
                        spLine = 7 / 6;
                    }
                }
            }
        }
    }
    var lineGap;
    if (spaceRow.rule == 3) {
        lineGap = spLine * g_dKoef_pt_to_mm;
    } else {
        lineGap = spLine * FontSize * g_dKoef_pt_to_mm;
    }
    var min = spaceRow.minGap * FontSize * g_dKoef_pt_to_mm;
    lineGap = Math.max(lineGap, min);
    return lineGap;
};
function CMathMatrix(props) {
    CMathMatrix.superclass.constructor.call(this);
    this.Id = g_oIdCounter.Get_NewId();
    this.Pr = new CMathMatrixPr();
    this.spaceRow = null;
    this.spaceColumn = null;
    this.gaps = null;
    this.column = 0;
    this.setDefaultSpace();
    if (props !== null && typeof(props) !== "undefined") {
        this.init(props);
    }
    g_oTableId.Add(this, this.Id);
}
Asc.extendClass(CMathMatrix, CMatrixBase);
CMathMatrix.prototype.ClassType = historyitem_type_matrix;
CMathMatrix.prototype.kind = MATH_MATRIX;
CMathMatrix.prototype.init = function (props) {
    this.setProperties(props);
    this.column = this.Pr.Get_ColumnsCount();
    var nRowsCount = this.getRowsCount();
    var nColsCount = this.getColsCount();
    this.Fill_LogicalContent(nRowsCount * nColsCount);
    this.fillContent();
};
CMathMatrix.prototype.setPosition = function (pos, PosInfo) {
    this.pos.x = pos.x;
    if (this.bInside === true) {
        this.pos.y = pos.y;
    } else {
        this.pos.y = pos.y - this.size.ascent;
    }
    var maxWH = this.getWidthsHeights();
    var Widths = maxWH.widths;
    var Heights = maxWH.heights;
    var NewPos = new CMathPosition();
    var h = 0,
    w = 0;
    for (var i = 0; i < this.nRow; i++) {
        w = 0;
        for (var j = 0; j < this.nCol; j++) {
            var al = this.align(i, j);
            NewPos.x = this.pos.x + this.GapLeft + al.x + w;
            NewPos.y = this.pos.y + al.y + h;
            this.elements[i][j].setPosition(NewPos, PosInfo);
            w += Widths[j] + this.gaps.column[j];
        }
        h += Heights[i] + this.gaps.row[i];
    }
};
CMathMatrix.prototype.getMetrics = function (RPI) {
    var Ascents = [];
    var Descents = [];
    var Widths = [];
    for (var i = 0; i < this.nRow; i++) {
        Ascents[i] = 0;
        Descents[i] = 0;
        for (var j = 0; j < this.nCol; j++) {
            var size = this.elements[i][j].size;
            Widths[j] = i > 0 && (Widths[j] > size.width) ? Widths[j] : size.width;
            Ascents[i] = (Ascents[i] > size.ascent) ? Ascents[i] : size.ascent;
            Descents[i] = (Descents[i] > size.height - size.ascent) ? Descents[i] : size.height - size.ascent;
        }
    }
    return {
        ascents: Ascents,
        descents: Descents,
        widths: Widths
    };
};
CMathMatrix.prototype.setRowGapRule = function (rule, gap) {
    this.spaceRow.rule = rule;
    this.spaceRow.gap = gap;
};
CMathMatrix.prototype.setColumnGapRule = function (rule, gap, minGap) {
    this.spaceColumn.rule = rule;
    this.spaceColumn.gap = gap;
    if (minGap !== null && typeof(minGap) !== "undefined") {
        this.spaceColumn.minGap = minGap;
    }
};
CMathMatrix.prototype.getContentElement = function (nRowIndex, nColIndex) {
    return this.Content[nRowIndex * this.getColsCount() + nColIndex];
};
CMathMatrix.prototype.fillContent = function () {
    this.column = this.Pr.Get_ColumnsCount();
    var nRowsCount = this.getRowsCount();
    var nColsCount = this.getColsCount();
    this.setDimension(nRowsCount, nColsCount);
    for (var nRowIndex = 0; nRowIndex < nRowsCount; nRowIndex++) {
        for (var nColIndex = 0; nColIndex < nColsCount; nColIndex++) {
            this.elements[nRowIndex][nColIndex] = this.getContentElement(nRowIndex, nColIndex);
        }
    }
};
CMathMatrix.prototype.getRowsCount = function () {
    return this.Pr.row;
};
CMathMatrix.prototype.getColsCount = function () {
    return this.column;
};
CMathMatrix.prototype.Document_UpdateInterfaceState = function (MathProps) {
    MathProps.Type = c_oAscMathInterfaceType.Matrix;
    MathProps.Pr = null;
};
function CMathPoint() {
    this.even = -1;
    this.odd = -1;
}
function CMathEqArrPr() {
    this.maxDist = 0;
    this.objDist = 0;
    this.rSp = 0;
    this.rSpRule = 0;
    this.baseJc = BASEJC_CENTER;
    this.row = 1;
}
CMathEqArrPr.prototype.Set_FromObject = function (Obj) {
    if (undefined !== Obj.maxDist && null !== Obj.maxDist) {
        this.maxDist = Obj.maxDist;
    }
    if (undefined !== Obj.objDist && null !== Obj.objDist) {
        this.objDist = Obj.objDist;
    }
    if (undefined !== Obj.rSp && null !== Obj.rSp) {
        this.rSp = Obj.rSp;
    }
    if (undefined !== Obj.rSpRule && null !== Obj.rSpRule) {
        this.rSpRule = Obj.rSpRule;
    }
    if (undefined !== Obj.baseJc && null !== Obj.baseJc) {
        this.baseJc = Obj.baseJc;
    }
    this.row = Obj.row;
};
CMathEqArrPr.prototype.Copy = function () {
    var NewPr = new CMathEqArrPr();
    NewPr.maxDist = this.maxDist;
    NewPr.objDist = this.objDist;
    NewPr.rSp = this.rSp;
    NewPr.rSpRule = this.rSpRule;
    NewPr.baseJc = this.baseJc;
    NewPr.row = this.row;
    return NewPr;
};
CMathEqArrPr.prototype.Write_ToBinary = function (Writer) {
    Writer.WriteLong(this.maxDist);
    Writer.WriteLong(this.objDist);
    Writer.WriteLong(this.rSp);
    Writer.WriteLong(this.rSpRule);
    Writer.WriteLong(this.baseJc);
    Writer.WriteLong(this.row);
};
CMathEqArrPr.prototype.Read_FromBinary = function (Reader) {
    this.maxDist = Reader.GetLong();
    this.objDist = Reader.GetLong();
    this.rSp = Reader.GetLong();
    this.rSpRule = Reader.GetLong();
    this.baseJc = Reader.GetLong();
    this.row = Reader.GetLong();
};
function CEqArray(props) {
    CEqArray.superclass.constructor.call(this);
    this.Id = g_oIdCounter.Get_NewId();
    this.Pr = new CMathEqArrPr();
    this.spaceRow = null;
    this.spaceColumn = null;
    this.gaps = null;
    this.setDefaultSpace();
    this.WidthsPoints = [];
    this.Points = [];
    this.MaxDimWidths = [];
    if (props !== null && typeof(props) !== "undefined") {
        this.init(props);
    }
    g_oTableId.Add(this, this.Id);
}
Asc.extendClass(CEqArray, CMatrixBase);
CEqArray.prototype.ClassType = historyitem_type_eqArr;
CEqArray.prototype.kind = MATH_EQ_ARRAY;
CEqArray.prototype.init = function (props) {
    var nRowsCount = props.row;
    this.Fill_LogicalContent(nRowsCount);
    this.setProperties(props);
    this.fillContent();
};
CEqArray.prototype.addRow = function () {
    var NewContent = new CMathContent();
    this.protected_AddToContent(this.CurPos + 1, [NewContent], true);
    this.CurPos++;
    var NewPr = this.Pr.Copy();
    NewPr.row = this.Content.length;
    this.setPr(NewPr);
    return NewContent;
};
CEqArray.prototype.setPr = function (NewPr) {
    History.Add(this, new CChangesMathEqArrayPr(NewPr, this.Pr));
    this.raw_SetPr(NewPr);
};
CEqArray.prototype.raw_SetPr = function (NewPr) {
    this.Pr = NewPr;
    this.private_SetNeedResize();
};
CEqArray.prototype.fillContent = function () {
    var nRowsCount = this.Content.length;
    this.setDimension(nRowsCount, 1);
    for (var nIndex = 0; nIndex < nRowsCount; nIndex++) {
        this.elements[nIndex][0] = this.Content[nIndex];
    }
};
CEqArray.prototype.Resize = function (oMeasure, RPI) {
    var NewRPI = RPI.Copy();
    NewRPI.bEqqArray = true;
    for (var i = 0; i < this.nRow; i++) {
        this.elements[i][0].Resize(oMeasure, NewRPI);
    }
    this.recalculateSize(oMeasure);
};
CEqArray.prototype.getMetrics = function () {
    var AscentsMetrics = [];
    var DescentsMetrics = [];
    var WidthsMetrics = [];
    var EndWidths = 0;
    var even, odd, last;
    var maxDim, maxDimWidth;
    var Pos = 0;
    this.WidthsPoints.length = 0;
    this.Points.length = 0;
    this.MaxDimWidths.length = 0;
    WidthsMetrics[0] = 0;
    while (EndWidths < this.nRow) {
        even = 0;
        odd = 0;
        last = 0;
        maxDim = 0;
        maxDimWidth = 0;
        for (var i = 0; i < this.nRow; i++) {
            var WidthsRow = this.elements[i][0].getWidthsPoints(),
            len = WidthsRow.length;
            if (Pos < len) {
                if (WidthsRow[Pos].odd !== -1) {
                    if (maxDim < WidthsRow[Pos].even || maxDim < WidthsRow[Pos].odd) {
                        maxDim = WidthsRow[Pos].even < WidthsRow[Pos].odd ? WidthsRow[Pos].odd : WidthsRow[Pos].even;
                        maxDimWidth = WidthsRow[Pos].even + WidthsRow[Pos].odd;
                    }
                    even = even > WidthsRow[Pos].even ? even : WidthsRow[Pos].even;
                    odd = odd > WidthsRow[Pos].odd ? odd : WidthsRow[Pos].odd;
                } else {
                    if (maxDim < WidthsRow[Pos].even) {
                        maxDim = WidthsRow[Pos].even;
                        maxDimWidth = maxDim;
                    }
                    last = last > WidthsRow[Pos].even ? last : WidthsRow[Pos].even;
                }
                if (Pos == len - 1) {
                    EndWidths++;
                }
            }
        }
        var w = even + odd > last ? even + odd : last;
        var NewPoint = new CMathPoint();
        NewPoint.even = even;
        NewPoint.odd = odd;
        this.WidthsPoints.push(w);
        this.MaxDimWidths.push(maxDimWidth);
        this.Points.push(NewPoint);
        WidthsMetrics[0] += w;
        Pos++;
    }
    for (var i = 0; i < this.nRow; i++) {
        this.elements[i][0].ApplyPoints(this.WidthsPoints, this.Points, this.MaxDimWidths);
    }
    for (var i = 0; i < this.nRow; i++) {
        var size = this.elements[i][0].size;
        AscentsMetrics[i] = size.ascent;
        DescentsMetrics[i] = size.height - size.ascent;
    }
    return {
        ascents: AscentsMetrics,
        descents: DescentsMetrics,
        widths: WidthsMetrics
    };
};
CEqArray.prototype.setPosition = function (pos) {
    this.pos.x = pos.x;
    if (this.bInside === true) {
        this.pos.y = pos.y;
    } else {
        this.pos.y = pos.y - this.size.ascent;
    }
    var maxWH = this.getWidthsHeights();
    var Heights = maxWH.heights;
    var NewPos = new CMathPosition();
    var h = 0;
    for (var i = 0; i < this.nRow; i++) {
        NewPos.x = this.pos.x + this.GapLeft;
        NewPos.y = this.pos.y + h;
        this.elements[i][0].setPosition(NewPos);
        h += Heights[i] + this.gaps.row[i];
    }
};
CEqArray.prototype.getElement = function (num) {
    return this.elements[num][0];
};
CEqArray.prototype.getElementMathContent = function (Index) {
    return this.Content[Index];
};
CEqArray.prototype.Document_UpdateInterfaceState = function (MathProps) {
    MathProps.Type = c_oAscMathInterfaceType.EqArray;
    MathProps.Pr = null;
};