BaseData.cpp
上传用户:zhanglf88
上传日期:2013-11-19
资源大小:6036k
文件大小:6k
- /*
- Cross Platform Core Code.
- Copyright(R) 2001-2002 Balang Software.
- All rights reserved.
- Using:
- class CBaseData;
- */
- #include "StdAfx.h"
- #include "../Include/Stock.h"
- #ifdef _DEBUG
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #endif
- /////////////////////////////////////////////////////////////////////////////
- CBaseData::CBaseData()
- {
- m_pData = NULL;
- m_nSize = m_nMaxSize = m_nGrowBy = 0;
- }
- CBaseData::CBaseData( const CBaseData &src )
- {
- m_pData = NULL;
- m_nSize = m_nMaxSize = m_nGrowBy = 0;
- *this = src;
- }
- CBaseData::~CBaseData()
- {
- if( m_pData )
- delete [] (BYTE*)m_pData;
- }
- void CBaseData::SetSize(int nNewSize, int nGrowBy /* = -1 */)
- {
- SP_ASSERT(nNewSize >= 0);
- if (nGrowBy != -1)
- m_nGrowBy = nGrowBy; // set new size
- if (nNewSize == 0)
- {
- // shrink to nothing
- delete [] (BYTE*)m_pData;
- m_pData = NULL;
- m_nSize = m_nMaxSize = 0;
- }
- else if (m_pData == NULL)
- {
- // create one with exact size
- #ifdef SIZE_T_MAX
- SP_ASSERT((long)nNewSize * sizeof(BASEDATA) <= SIZE_T_MAX); // no overflow
- #endif
- m_pData = (BASEDATA*) new BYTE[nNewSize * sizeof(BASEDATA)];
- memset(m_pData, 0, nNewSize * sizeof(BASEDATA)); // zero fill
- m_nSize = m_nMaxSize = nNewSize;
- }
- else if (nNewSize <= m_nMaxSize)
- {
- // it fits
- if (nNewSize > m_nSize)
- {
- // initialize the new elements
- memset(&m_pData[m_nSize], 0, (nNewSize-m_nSize) * sizeof(BASEDATA));
- }
- m_nSize = nNewSize;
- }
- else
- {
- // Otherwise grow array
- int nNewMax;
- if (nNewSize < m_nMaxSize + m_nGrowBy)
- nNewMax = m_nMaxSize + m_nGrowBy; // granularity
- else
- nNewMax = nNewSize; // no slush
- #ifdef SIZE_T_MAX
- SP_ASSERT((long)nNewMax * sizeof(BASEDATA) <= SIZE_T_MAX); // no overflow
- #endif
- BASEDATA* pNewData = (BASEDATA*) new BYTE[nNewMax * sizeof(BASEDATA)];
- // copy new data from old
- memcpy(pNewData, m_pData, m_nSize * sizeof(BASEDATA));
- // construct remaining elements
- SP_ASSERT(nNewSize > m_nSize);
- memset(&pNewData[m_nSize], 0, (nNewSize-m_nSize) * sizeof(BASEDATA));
- // get rid of old stuff (note: no destructors called)
- delete [] (BYTE*)m_pData;
- m_pData = pNewData;
- m_nSize = nNewSize;
- m_nMaxSize = nNewMax;
- }
- }
- void CBaseData::FreeExtra()
- {
- if (m_nSize != m_nMaxSize)
- {
- // shrink to desired size
- #ifdef SIZE_T_MAX
- SP_ASSERT((long)m_nSize * sizeof(BASEDATA) <= SIZE_T_MAX); // no overflow
- #endif
- BASEDATA* pNewData = NULL;
- if (m_nSize != 0)
- {
- pNewData = (BASEDATA*) new BYTE[m_nSize * sizeof(BASEDATA)];
- // copy new data from old
- memcpy(pNewData, m_pData, m_nSize * sizeof(BASEDATA));
- }
- // get rid of old stuff (note: no destructors called)
- delete [] (BYTE*)m_pData;
- m_pData = pNewData;
- m_nMaxSize = m_nSize;
- }
- }
- /////////////////////////////////////////////////////////////////////////////
- void CBaseData::SetAtGrow(int nIndex, BASEDATA newElement)
- {
- SP_ASSERT(nIndex >= 0);
- if (nIndex >= m_nSize)
- SetSize(nIndex+1);
- m_pData[nIndex] = newElement;
- }
- void CBaseData::InsertAt(int nIndex, BASEDATA newElement, int nCount /*=1*/)
- {
- SP_ASSERT(nIndex >= 0); // will expand to meet need
- SP_ASSERT(nCount > 0); // zero or negative size not allowed
- if (nIndex >= m_nSize)
- {
- // adding after the end of the array
- SetSize(nIndex + nCount); // grow so nIndex is valid
- }
- else
- {
- // inserting in the middle of the array
- int nOldSize = m_nSize;
- SetSize(m_nSize + nCount); // grow it to new size
- // shift old data up to fill gap
- memmove(&m_pData[nIndex+nCount], &m_pData[nIndex],
- (nOldSize-nIndex) * sizeof(BASEDATA));
- // re-init slots we copied from
- memset(&m_pData[nIndex], 0, nCount * sizeof(BASEDATA));
- }
- // insert new value in the gap
- SP_ASSERT(nIndex + nCount <= m_nSize);
- while (nCount--)
- m_pData[nIndex++] = newElement;
- }
- void CBaseData::RemoveAt(int nIndex, int nCount /* = 1 */)
- {
- SP_ASSERT(nIndex >= 0);
- SP_ASSERT(nCount >= 0);
- SP_ASSERT(nIndex + nCount <= m_nSize);
- // just remove a range
- int nMoveCount = m_nSize - (nIndex + nCount);
- if (nMoveCount)
- memcpy(&m_pData[nIndex], &m_pData[nIndex + nCount],
- nMoveCount * sizeof(BASEDATA));
- m_nSize -= nCount;
- }
- void CBaseData::InsertAt(int nStartIndex, CBaseData* pNewArray)
- {
- SP_ASSERT(pNewArray != NULL);
- SP_ASSERT(nStartIndex >= 0);
- if (pNewArray->GetSize() > 0)
- {
- InsertAt(nStartIndex, pNewArray->GetAt(0), pNewArray->GetSize());
- for (int i = 0; i < pNewArray->GetSize(); i++)
- SetAt(nStartIndex + i, pNewArray->GetAt(i));
- }
- }
- int CBaseData::InsertBaseDataSort( BASEDATA newElement )
- {
- for( int i=0; i<GetSize(); i++ )
- {
- BASEDATA & temp = ElementAt(i);
- if( temp.m_date == newElement.m_date )
- {
- SetAt(i,newElement);
- return i;
- }
- if( temp.m_date > newElement.m_date )
- {
- InsertAt(i,newElement);
- return i;
- }
- }
- return Add( newElement );
- }
- int SortBaseData(const void *p1,const void *p2)
- {
- BASEDATA *pTemp1 = (BASEDATA *)p1;
- BASEDATA *pTemp2 = (BASEDATA *)p2;
- if( pTemp1 && pTemp2 && pTemp1->m_date < pTemp2->m_date )
- return -1;
- else if( pTemp1 && pTemp2 && pTemp1->m_date > pTemp2->m_date )
- return 1;
- return 0;
- }
- void CBaseData::Sort( )
- {
- if( m_pData )
- qsort( m_pData, GetSize(), sizeof(BASEDATA), SortBaseData );
- }
- CBaseData & CBaseData::operator = ( const CBaseData &src )
- {
- Copy( src );
- return *this;
- }
- void CBaseData::Copy( const CBaseData &src )
- {
- SetSize( 0, src.GetSize()+5 );
- for( int i=0; i<src.GetSize(); i++ )
- {
- Add( src.GetAt(i) );
- }
- }
- /////////////////////////////////////////////////////////////////////////////