107 lines
3.4 KiB
JavaScript
107 lines
3.4 KiB
JavaScript
/*
|
||
* (c) Copyright Ascensio System SIA 2010-2023
|
||
*
|
||
* 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 20A-6 Ernesta Birznieka-Upish
|
||
* street, Riga, Latvia, EU, LV-1050.
|
||
*
|
||
* 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";
|
||
|
||
(function(window)
|
||
{
|
||
/**
|
||
* Класс для шейпинга простой текстовой строки, идущей с одном шрифте
|
||
* @constructor
|
||
*/
|
||
function StringShaper()
|
||
{
|
||
AscFonts.CTextShaper.call(this);
|
||
|
||
this.textPr = null;
|
||
this.graphemes = [];
|
||
this.widths = [];
|
||
}
|
||
StringShaper.prototype = Object.create(AscFonts.CTextShaper.prototype);
|
||
StringShaper.prototype.constructor = StringShaper;
|
||
StringShaper.prototype.Shape = function(codePoints, textPr)
|
||
{
|
||
this.textPr = textPr;
|
||
this.codePoints = codePoints.slice();
|
||
this.graphemes = [];
|
||
this.widths = [];
|
||
|
||
for (let i = 0; i < codePoints.length; ++i)
|
||
{
|
||
this.AppendToString(codePoints[i]);
|
||
}
|
||
this.FlushWord();
|
||
};
|
||
StringShaper.prototype.FlushGrapheme = function(grapheme, width, codePointCount, isLigature)
|
||
{
|
||
if (codePointCount <= 0)
|
||
return
|
||
|
||
this.graphemes.push(grapheme);
|
||
this.widths.push(width);
|
||
|
||
if (this.IsRtlDirection())
|
||
this.BufferIndex -= codePointCount;
|
||
else
|
||
this.BufferIndex += codePointCount;
|
||
};
|
||
StringShaper.prototype.GetFontSlot = function(codePoint)
|
||
{
|
||
if (!this.textPr)
|
||
return AscWord.fontslot_ASCII;
|
||
|
||
return AscWord.GetFontSlotByTextPr(codePoint, this.textPr);
|
||
};
|
||
StringShaper.prototype.GetDirection = function(script)
|
||
{
|
||
return AscFonts.HB_DIRECTION.HB_DIRECTION_LTR;
|
||
};
|
||
StringShaper.prototype.GetFontInfo = function(fontSlot)
|
||
{
|
||
if (!this.textPr)
|
||
return AscFonts.DEFAULT_TEXTFONTINFO;
|
||
|
||
return this.textPr.GetFontInfo(fontSlot);
|
||
};
|
||
StringShaper.prototype.GetGraphemes = function()
|
||
{
|
||
return this.graphemes;
|
||
};
|
||
StringShaper.prototype.GetWidths = function()
|
||
{
|
||
return this.widths;
|
||
};
|
||
//--------------------------------------------------------export----------------------------------------------------
|
||
window['AscFonts'] = window['AscFonts'] || {};
|
||
window['AscFonts'].StringShaper = StringShaper;
|
||
})(window);
|