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core/OdfFile/Reader/Format/math_elements.cpp
2026-05-19 16:46:09 +03:00

255 lines
8.4 KiB
C++

/*
* Copyright (C) Ascensio System SIA, 2009-2026
*
* 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, together with the
* additional terms provided in the LICENSE file.
*
* 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: https://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA by email at info@onlyoffice.com
* or by postal mail at 20A-6 Ernesta Birznieka-Upisha Street, Riga,
* LV-1050, Latvia, European Union.
*
* The interactive user interfaces in modified versions of the Program
* are required to display Appropriate Legal Notices in accordance with
* Section 5 of the GNU AGPL version 3.
*
* No trademark rights are granted under this License.
*
* All non-code elements of the Product, including illustrations,
* icon sets, and technical writing content, are licensed under the
* Creative Commons Attribution-ShareAlike 4.0 International License:
* https://creativecommons.org/licenses/by-sa/4.0/legalcode
*
* This license applies only to such non-code elements and does not
* modify or replace the licensing terms applicable to the Program's
* source code, which remains licensed under the GNU Affero General
* Public License v3.
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
#include "math_elements.h"
#include "../Converter/StarMath2OOXML/shakey.h"
#include "../Converter/StarMath2OOXML/conversionmathformula.h"
namespace cpdoccore {
using namespace odf_types;
namespace odf_reader {
//---------------------------------------------------------------
const wchar_t * office_math_element::ns = L"math";
const wchar_t * office_math_element::name = L"math-element";
//---------------------------------------------------------------
const wchar_t * office_math::ns = L"math";
const wchar_t * office_math::name = L"math";
//----------------------------------------------------------------------------------------------------
void office_math::add_attributes( const xml::attributes_wc_ptr & Attributes )
{
}
void office_math::add_child_element( xml::sax * Reader, const std::wstring & Ns, const std::wstring & Name)
{
if CP_CHECK_NAME1(L"semantics")
{
CP_CREATE_ELEMENT(semantics_);
}
}
void office_math::oox_convert(oox::math_context & Context, int iTypeConversion)
{
if (semantics_)
{
office_math_element* math_element = dynamic_cast<office_math_element*>(semantics_.get());
math_element->oox_convert(Context,iTypeConversion);
}
}
//----------------------------------------------------------------------------------------------------
const wchar_t * math_semantics::ns = L"math";
const wchar_t * math_semantics::name = L"semantics";
//----------------------------------------------------------------------------------------------------
void math_semantics::add_attributes( const xml::attributes_wc_ptr & Attributes )
{
}
void math_semantics::add_child_element( xml::sax * Reader, const std::wstring & Ns, const std::wstring & Name)
{
if CP_CHECK_NAME1(L"annotation")
{
CP_CREATE_ELEMENT(annotation_);
}
else if(CP_CHECK_NAME1(L"signature"))
create_element_and_read(Reader,Ns,Name,signature_,getContext(),false,true);
else
CP_CREATE_ELEMENT(content_);
}
void math_semantics::oox_convert(oox::math_context & Context)
{
this->oox_convert(Context,0);
}
void math_semantics::oox_convert(oox::math_context &Context, int iTypeConversion)
{
math_signature* pSignature = dynamic_cast<math_signature*>(signature_.get());
math_annotation* annotation = dynamic_cast<math_annotation*>(annotation_.get());
math_annotation_xml* annotation_xml = dynamic_cast<math_annotation_xml*>(annotation_.get());
std::wstring annotation_text(L"");
if ((annotation) && (annotation->text_)) annotation_text = *annotation->text_;
else if ((annotation_xml) && (annotation_xml->text_)) annotation_text = *annotation_xml->text_;
bool result = false;
if(pSignature)
{
if(pSignature->text_ && pSignature->GetAlg() == L"sha256" && HashSM::HashComparison(pSignature->GetShaKey(),HashSM::HashingAnnotation(annotation_text,true)))
{
Context.output_stream() << *pSignature->text_;
result = true;
}
}
if (!annotation_text.empty() && !result)
{
result = true;
StarMath::CStarMathConverter oConverterStarMath;
oConverterStarMath.SetBaseFont(Context.base_font_name_);
oConverterStarMath.SetBaseSize(Context.base_font_size_);
oConverterStarMath.SetBaseAlignment(Context.base_alignment_);
oConverterStarMath.SetBaseItalic(Context.base_font_italic_);
oConverterStarMath.SetBaseBold(Context.base_font_bold_);
std::wstring ws_conversion_result_sm_to_ooxml = oConverterStarMath.ConvertStarMathToOOXml(annotation_text,iTypeConversion);
std::queue<StarMath::TFormulaSize> sizes = oConverterStarMath.GetFormulaSize();
for (;!sizes.empty(); sizes.pop())
{
if (sizes.front().m_iWidth > Context.width)
Context.width = sizes.front().m_iWidth;
Context.height += sizes.front().m_iHeight;
}
Context.output_stream() << ws_conversion_result_sm_to_ooxml;
}
if (!result)
{
Context.output_stream() << L"<m:oMathPara xmlns:m=\"http://schemas.openxmlformats.org/officeDocument/2006/math\">";
Context.output_stream() << L"<m:oMath xmlns:m=\"http://schemas.openxmlformats.org/officeDocument/2006/math\">";
for (size_t i = 0; i < content_.size(); i++)
{
office_math_element* math_element = dynamic_cast<office_math_element*>(content_[i].get());
math_element->oox_convert(Context);
}
Context.output_stream() << L"</m:oMath>";
Context.output_stream() << L"</m:oMathPara>";
}
}
//----------------------------------------------------------------------------------------------------
const wchar_t * math_annotation::ns = L"math";
const wchar_t * math_annotation::name = L"annotation";
//----------------------------------------------------------------------------------------------------
void math_annotation::add_attributes( const xml::attributes_wc_ptr & Attributes )
{
// ver 2
CP_APPLY_ATTR(L"math:encoding", encoding_);
// ver 3
if (!encoding_) CP_APPLY_ATTR(L"encoding", encoding_);
}
void math_annotation::add_child_element( xml::sax * Reader, const std::wstring & Ns, const std::wstring & Name)
{
CP_CREATE_ELEMENT(content_);
}
void math_annotation::add_text(const std::wstring & Text)
{
text_ = Text;
}
//----------------------------------------------------------------------------------------------------
const wchar_t * math_annotation_xml::ns = L"math";
const wchar_t * math_annotation_xml::name = L"annotation-xml";
//----------------------------------------------------------------------------------------------------
void math_annotation_xml::add_attributes( const xml::attributes_wc_ptr & Attributes )
{
// ver 2
CP_APPLY_ATTR(L"math:encoding", encoding_);
// ver 3
if (!encoding_) CP_APPLY_ATTR(L"encoding", encoding_);
}
void math_annotation_xml::add_child_element( xml::sax * Reader, const std::wstring & Ns, const std::wstring & Name)
{
CP_CREATE_ELEMENT(content_);
}
void math_annotation_xml::add_text(const std::wstring & Text)
{
text_->append(Text);
}
//----------------------------------------------------------------------------------------------------
const wchar_t * math_signature::ns = L"math";
const wchar_t * math_signature::name = L"signature";
//----------------------------------------------------------------------------------------------------
std::wstring math_signature::GetAlg() const
{
if(alg_)
return alg_.get();
return L"";
}
std::wstring math_signature::GetShaKey() const
{
if(shakey_)
return shakey_.get();
return L"";
}
void math_signature::add_attributes( const xml::attributes_wc_ptr & Attributes )
{
CP_APPLY_ATTR(L"encoding", encoding_);
CP_APPLY_ATTR(L"alg", alg_);
CP_APPLY_ATTR(L"shakey", shakey_);
}
void math_signature::add_child_element( xml::sax * Reader, const std::wstring & Ns, const std::wstring & Name)
{
CP_CREATE_ELEMENT(content_);
}
void math_signature::add_text(const std::wstring & Text)
{
text_ = Text;
}
}
}