DocumentServer/ActiveX/Common/DocxFormat/Source/Base/Nullable.h
nikolay ivanov a8be6b9e72 init repo
2014-07-05 18:22:49 +00:00

642 lines
14 KiB
C++

/*
* (c) Copyright Ascensio System SIA 2010-2014
*
* 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
*
*/
#pragma once
#include "SmartPtr.h"
#include "../XML/XmlUtils.h"
namespace NSCommon
{
template<typename Type>
class nullable_base
{
protected:
Type* m_pPointer;
public:
nullable_base()
{
m_pPointer = NULL;
}
nullable_base(const nullable_base<Type>& oOther)
{
m_pPointer = NULL;
if ( NULL != oOther.m_pPointer )
m_pPointer = new Type( (const Type&)*(oOther.m_pPointer) );
}
virtual ~nullable_base()
{
RELEASEOBJECT(m_pPointer);
}
public:
AVSINLINE Type& operator*() { return *m_pPointer; }
AVSINLINE Type* operator->() { return m_pPointer; }
AVSINLINE Type& operator*() const { return *m_pPointer; }
AVSINLINE Type* operator->() const { return m_pPointer; }
AVSINLINE const Type& get()const { return *m_pPointer; }
AVSINLINE Type& get() { return *m_pPointer; }
public:
nullable_base<Type>& operator=(const nullable_base<Type> &oOther)
{
RELEASEOBJECT(m_pPointer);
if ( NULL != oOther.m_pPointer )
m_pPointer = new Type( (const Type&)*(oOther.m_pPointer) );
return *this;
}
nullable_base<Type>& operator=(Type* pType)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = pType;
return *this;
}
nullable_base<Type>& operator=(const Type& oSrc)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new Type(oSrc);
return *this;
}
public:
AVSINLINE bool IsInit() const
{
return (NULL != m_pPointer);
}
AVSINLINE bool is_init() const
{
return IsInit();
}
AVSINLINE void reset(Type* pType = NULL)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = pType;
}
};
template<typename Type>
class nullable : public nullable_base<Type>
{
public:
nullable() : nullable_base<Type>()
{
}
nullable(const nullable<Type>& oOther)
{
if ( NULL == oOther.m_pPointer )
m_pPointer = NULL;
else
m_pPointer = new Type( (const Type&)*(oOther.m_pPointer) );
}
AVSINLINE void operator=(XmlUtils::CXmlNode& oNode)
{
RELEASEOBJECT(m_pPointer);
if (oNode.IsValid())
m_pPointer = new Type(oNode);
}
#ifdef _USE_XMLLITE_READER_
AVSINLINE void operator=(XmlUtils::CXmlLiteReader& oReader)
{
RELEASEOBJECT(m_pPointer);
if (oReader.IsValid())
m_pPointer = new Type(oReader);
}
#endif
AVSINLINE void operator=(const wchar_t* &cwsValue)
{
RELEASEOBJECT(m_pPointer);
if (NULL != cwsValue)
m_pPointer = new Type( cwsValue );
}
AVSINLINE void operator=(const BSTR &value)
{
RELEASEOBJECT(m_pPointer);
if (NULL != value)
m_pPointer = new Type( value );
}
nullable<Type>& operator=(const nullable<Type> &oOther)
{
RELEASEOBJECT(m_pPointer);
if ( NULL != oOther.m_pPointer )
m_pPointer = new Type( (const Type&)*(oOther.m_pPointer) );
return *this;
}
nullable<Type>& operator=(Type* pType)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = pType;
return *this;
}
nullable<Type>& operator=(const Type& oSrc)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new Type(oSrc);
return *this;
}
const bool operator==(const nullable<Type>& oOther) const
{
if ( !m_pPointer && !oOther.m_pPointer )
return true;
else if ( !m_pPointer || !oOther.m_pPointer )
return false;
return (*m_pPointer) == (*(oOther.m_pPointer));
}
const bool operator==(const Type& oOther) const
{
if ( !m_pPointer )
return false;
return (*m_pPointer) == oOther;
}
AVSINLINE Type& operator*() { return *m_pPointer; }
AVSINLINE Type* operator->() { return m_pPointer; }
AVSINLINE Type& operator*() const { return *m_pPointer; }
AVSINLINE Type* operator->() const { return m_pPointer; }
AVSINLINE const Type& get()const { return *m_pPointer; }
AVSINLINE Type& get2()const { return *m_pPointer; }
template<class T> const bool is()const
{
if (NULL == m_pPointer)
return false;
T* pResult = dynamic_cast<T*>(const_cast<Type*>(m_pPointer));
return (NULL != pResult);
}
template<class T> const T& as()const
{
T* pResult = dynamic_cast<T*>(const_cast<Type*>(m_pPointer));
return *pResult;
}
template<class T> T& as()
{
T* pResult = dynamic_cast<T*>(const_cast<Type*>(m_pPointer));
return *pResult;
}
AVSINLINE bool Init()
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new Type;
return IsInit();
}
Type* GetPointer()
{
return m_pPointer;
}
Type* GetPointerEmptyNullable()
{
Type* pOldPointer = m_pPointer;
m_pPointer = NULL;
return pOldPointer;
}
};
template<typename Type>
class nullable_limit : public nullable_base<Type>
{
public:
nullable_limit() : nullable_base<Type>()
{
}
public:
AVSINLINE void operator=(const CString& value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new Type();
m_pPointer->_set(value);
}
AVSINLINE void operator=(Type* pType)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = pType;
}
AVSINLINE void operator=(const BSTR& value)
{
RELEASEOBJECT(m_pPointer);
if (NULL != value)
{
m_pPointer = new Type();
m_pPointer->_set((CString)value);
}
}
AVSINLINE void operator=(const BYTE& value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new Type();
m_pPointer->SetBYTECode(value);
}
AVSINLINE void operator=(const Type& value)
{
*this = value.get();
}
nullable_limit<Type>& operator=(const nullable_limit<Type>& oSrc)
{
RELEASEOBJECT(m_pPointer);
if ( NULL != oSrc.m_pPointer )
{
m_pPointer = new Type();
m_pPointer->set(oSrc->get());
}
return *this;
}
AVSINLINE const CString& get_value_or(const CString& value) const
{
if (NULL == m_pPointer)
return value;
return m_pPointer->get();
}
AVSINLINE const CString& get_value() const
{
return m_pPointer->get();
}
public:
AVSINLINE Type& operator*() { return *m_pPointer; }
AVSINLINE Type* operator->() { return m_pPointer; }
AVSINLINE Type& operator*() const { return *m_pPointer; }
AVSINLINE Type* operator->() const { return m_pPointer; }
AVSINLINE const Type& get()const { return *m_pPointer; }
};
class nullable_int : public nullable_base<int>
{
public:
nullable_int() : nullable_base<int>()
{
}
AVSINLINE void normalize(const int& min, const int& max)
{
if (IsInit())
{
if (*m_pPointer < min)
*m_pPointer = min;
else if (*m_pPointer > max)
*m_pPointer = max;
}
}
AVSINLINE void normalize_positive()
{
if (IsInit())
{
if (*m_pPointer < 0)
*m_pPointer = 0;
}
}
AVSINLINE void operator=(const BSTR& value)
{
RELEASEOBJECT(m_pPointer);
if (NULL != value)
m_pPointer = new int(XmlUtils::GetInteger(value));
}
AVSINLINE void operator=(const CString& value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new int(XmlUtils::GetInteger(value));
}
AVSINLINE void operator=(const int& value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new int(value);
}
nullable_int& operator=(const nullable_int& oSrc)
{
RELEASEOBJECT(m_pPointer);
if (NULL != oSrc.m_pPointer )
m_pPointer = new int(*oSrc);
return *this;
}
AVSINLINE int get_value_or(const int& value) const
{
if (NULL == m_pPointer)
{
int ret = value;
return ret;
}
return *m_pPointer;
}
public:
AVSINLINE int& operator*() { return *m_pPointer; }
AVSINLINE int* operator->() { return m_pPointer; }
AVSINLINE int& operator*() const { return *m_pPointer; }
AVSINLINE int* operator->() const { return m_pPointer; }
AVSINLINE const int& get()const { return *m_pPointer; }
public:
AVSINLINE CString toString() const
{
CString result;
return result;
}
};
class nullable_sizet : public nullable_base<size_t>
{
public:
nullable_sizet() : nullable_base<size_t>()
{
}
AVSINLINE void normalize(const size_t& max)
{
if (IsInit())
{
if (*m_pPointer > max)
*m_pPointer = max;
}
}
AVSINLINE void operator=(const BSTR& value)
{
RELEASEOBJECT(m_pPointer);
if (NULL != value)
m_pPointer = new size_t(XmlUtils::GetUInteger(value));
}
AVSINLINE void operator=(const size_t& value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new size_t(value);
}
nullable_sizet& operator=(const nullable_sizet& oSrc)
{
RELEASEOBJECT(m_pPointer);
if ( NULL != oSrc.m_pPointer )
m_pPointer = new size_t(*oSrc);
return *this;
}
AVSINLINE size_t get_value_or(const size_t& value) const
{
if (NULL == m_pPointer)
{
size_t ret = value;
return ret;
}
return *m_pPointer;
}
public:
AVSINLINE size_t& operator*() { return *m_pPointer; }
AVSINLINE size_t* operator->() { return m_pPointer; }
AVSINLINE size_t& operator*() const { return *m_pPointer; }
AVSINLINE size_t* operator->() const { return m_pPointer; }
AVSINLINE const size_t& get()const { return *m_pPointer; }
};
class nullable_double : public nullable_base<double>
{
public:
nullable_double() : nullable_base<double>()
{
}
AVSINLINE void normalize(const double& min, const double& max)
{
if (IsInit())
{
if (*m_pPointer < min)
*m_pPointer = min;
else if (*m_pPointer > max)
*m_pPointer = max;
}
}
AVSINLINE void operator=(const BSTR& value)
{
RELEASEOBJECT(m_pPointer);
if (NULL != value)
m_pPointer = new double(XmlUtils::GetDouble(value));
}
AVSINLINE void operator=(const double& value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new double(value);
}
nullable_double& operator=(const nullable_double& oSrc)
{
RELEASEOBJECT(m_pPointer);
if ( NULL != oSrc.m_pPointer )
m_pPointer = new double(*oSrc);
return *this;
}
AVSINLINE double get_value_or(const double& value) const
{
if (NULL == m_pPointer)
{
double ret = value;
return ret;
}
return *m_pPointer;
}
public:
AVSINLINE double& operator*() { return *m_pPointer; }
AVSINLINE double* operator->() { return m_pPointer; }
AVSINLINE double& operator*() const { return *m_pPointer; }
AVSINLINE double* operator->() const { return m_pPointer; }
AVSINLINE const double& get()const { return *m_pPointer; }
};
class nullable_bool : public nullable_base<bool>
{
public:
nullable_bool() : nullable_base<bool>()
{
}
protected:
bool set(const CString& value)
{
if ((_T("true") == value) || (_T("1") == value))
return true;
return false;
}
public:
AVSINLINE void operator=(const BSTR& value)
{
RELEASEOBJECT(m_pPointer);
if (NULL != value)
m_pPointer = new bool(set((CString)value));
}
AVSINLINE void operator=(const bool& value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new bool(value);
}
nullable_bool& operator=(const nullable_bool& oSrc)
{
RELEASEOBJECT(m_pPointer);
if ( NULL != oSrc.m_pPointer )
m_pPointer = new bool(*oSrc);
return *this;
}
AVSINLINE bool get_value_or(const bool& value) const
{
if (NULL == m_pPointer)
{
bool ret = value;
return ret;
}
return *m_pPointer;
}
public:
AVSINLINE bool& operator*() { return *m_pPointer; }
AVSINLINE bool* operator->() { return m_pPointer; }
AVSINLINE bool& operator*() const { return *m_pPointer; }
AVSINLINE bool* operator->() const { return m_pPointer; }
AVSINLINE const bool& get()const { return *m_pPointer; }
public:
AVSINLINE CString toString() const
{
CString result;
return result;
}
};
class nullable_string : public nullable_base<CString>
{
public:
nullable_string() : nullable_base<CString>()
{
}
nullable_string(const nullable_string& oOther)
{
if ( NULL == oOther.m_pPointer )
m_pPointer = NULL;
else
m_pPointer = new CString( *oOther.m_pPointer );
}
AVSINLINE void operator=(const BSTR& value)
{
RELEASEOBJECT(m_pPointer);
if (NULL != value)
m_pPointer = new CString(value);
}
AVSINLINE void operator=(const CString& value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = new CString(value);
}
AVSINLINE void operator=(CString* value)
{
RELEASEOBJECT(m_pPointer);
m_pPointer = value;
}
nullable_string& operator=(const nullable_string& oSrc)
{
RELEASEOBJECT(m_pPointer);
if ( NULL != oSrc.m_pPointer )
m_pPointer = new CString(*oSrc);
return *this;
}
AVSINLINE CString get_value_or(const CString& value) const
{
if (NULL == m_pPointer)
{
CString ret = value;
return ret;
}
return *m_pPointer;
}
public:
AVSINLINE CString& operator*() { return *m_pPointer; }
AVSINLINE CString* operator->() { return m_pPointer; }
AVSINLINE CString& operator*() const { return *m_pPointer; }
AVSINLINE CString* operator->() const { return m_pPointer; }
AVSINLINE CString& get()const { return *m_pPointer; }
};
}