added support for add/insert/deleting many items at once in wxArray (patch 548050)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15274 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2002-04-26 21:58:46 +00:00
parent f63e3ebbe3
commit 3b0b5f13f5
3 changed files with 61 additions and 45 deletions

View File

@@ -102,7 +102,7 @@ name& name::operator=(const name& src) \
} \
\
/* grow the array */ \
void name::Grow() \
void name::Grow(size_t nIncrement) \
{ \
/* only do it if no more place */ \
if( m_nCount == m_nSize ) { \
@@ -116,11 +116,13 @@ void name::Grow() \
} \
else \
{ \
/* add 50% but not too much */ \
size_t nIncrement = m_nSize < WX_ARRAY_DEFAULT_INITIAL_SIZE \
? WX_ARRAY_DEFAULT_INITIAL_SIZE : m_nSize >> 1; \
if ( nIncrement > ARRAY_MAXSIZE_INCREMENT ) \
nIncrement = ARRAY_MAXSIZE_INCREMENT; \
/* add at least 50% but not too much */ \
size_t ndefIncrement = m_nSize < WX_ARRAY_DEFAULT_INITIAL_SIZE \
? WX_ARRAY_DEFAULT_INITIAL_SIZE : m_nSize >> 1; \
if ( ndefIncrement > ARRAY_MAXSIZE_INCREMENT ) \
ndefIncrement = ARRAY_MAXSIZE_INCREMENT; \
if ( nIncrement < ndefIncrement ) \
nIncrement = ndefIncrement; \
T *pNew = new T[m_nSize + nIncrement]; \
/* only grow if allocation succeeded */ \
if ( pNew ) { \
@@ -240,10 +242,11 @@ int name::Index(T lItem, CMPFUNC fnCompare) const \
} \
\
/* add item at the end */ \
void name::Add(T lItem) \
void name::Add(T lItem, size_t nInsert) \
{ \
Grow(); \
m_pItems[m_nCount++] = lItem; \
Grow(nInsert); \
for (size_t i = 0; i < nInsert; i++) \
m_pItems[m_nCount++] = lItem; \
} \
\
/* add item assuming the array is sorted with fnCompare function */ \
@@ -253,26 +256,31 @@ void name::Add(T lItem, CMPFUNC fnCompare) \
} \
\
/* add item at the given position */ \
void name::Insert(T lItem, size_t nIndex) \
void name::Insert(T lItem, size_t nIndex, size_t nInsert) \
{ \
wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArray::Insert") ); \
wxCHECK_RET( m_nCount <= m_nCount + nInsert, \
wxT("array size overflow in wxArray::Insert") ); \
\
Grow(); \
Grow(nInsert); \
\
memmove(&m_pItems[nIndex + 1], &m_pItems[nIndex], \
memmove(&m_pItems[nIndex + nInsert], &m_pItems[nIndex], \
(m_nCount - nIndex)*sizeof(T)); \
m_pItems[nIndex] = lItem; \
m_nCount++; \
for (size_t i = 0; i < nInsert; i++) \
m_pItems[nIndex + i] = lItem; \
m_nCount += nInsert; \
} \
\
/* removes item from array (by index) */ \
void name::RemoveAt(size_t nIndex) \
void name::RemoveAt(size_t nIndex, size_t nRemove) \
{ \
wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArray::RemoveAt") ); \
wxCHECK_RET( nIndex < m_nCount, wxT("bad index in wxArray::RemoveAt") ); \
wxCHECK_RET( nIndex + nRemove <= m_nCount, \
wxT("removing too many elements in wxArray::RemoveAt") ); \
\
memmove(&m_pItems[nIndex], &m_pItems[nIndex + 1], \
(m_nCount - nIndex - 1)*sizeof(T)); \
m_nCount--; \
memmove(&m_pItems[nIndex], &m_pItems[nIndex + nRemove], \
(m_nCount - nIndex - nRemove)*sizeof(T)); \
m_nCount -= nRemove; \
} \
\
/* removes item from array (by value) */ \