// Name: dynarray.cpp
// Purpose: implementation of wxBaseArray class
// Author: Vadim Zeitlin
-// Modified by:
+// Modified by:
// Created: 12.09.97
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
#pragma implementation "dynarray.h"
#endif
-#include <wx/wxprec.h>
+#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/dynarray.h"
+#include "wx/intl.h"
#include <stdlib.h>
+#include <string.h> // for memmove
#ifndef max
#define max(a, b) (((a) > (b)) ? (a) : (b))
#endif
+// we cast the value to long from which we cast it to void * in IndexForInsert:
+// this can't work if the pointers are not big enough
+wxCOMPILE_TIME_ASSERT( sizeof(long) <= sizeof(void *),
+ wxArraySizeOfPtrLessSizeOfLong ); // < 32 symbols
+
// ============================================================================
// constants
// ============================================================================
// ============================================================================
// ----------------------------------------------------------------------------
-// wxBaseArray - dynamice array of 'long's
+// wxBaseArray - dynamic array of 'T's
// ----------------------------------------------------------------------------
-// ctor
-wxBaseArray::wxBaseArray()
-{
- m_uiSize =
- m_uiCount = 0;
- m_pItems = NULL;
-}
-
-// copy ctor
-wxBaseArray::wxBaseArray(const wxBaseArray& src)
-{
- m_uiSize = src.m_uiSize;
- m_uiCount = src.m_uiCount;
-
- if ( m_uiSize != 0 )
- m_pItems = new long[m_uiSize];
- else
- m_pItems = NULL;
-
- if ( m_uiCount != 0 )
- memcpy(m_pItems, src.m_pItems, m_uiCount*sizeof(long));
-}
-
-// copy operator
-wxBaseArray& wxBaseArray::operator=(const wxBaseArray& src)
-{
- DELETEA(m_pItems);
-
- m_uiSize = src.m_uiSize;
- m_uiCount = src.m_uiCount;
-
- if ( m_uiSize != 0 )
- m_pItems = new long[m_uiSize];
- else
- m_pItems = NULL;
-
- if ( m_uiCount != 0 )
- memcpy(m_pItems, src.m_pItems, m_uiCount*sizeof(long));
-
- return *this;
-}
-
-// grow the array
-void wxBaseArray::Grow()
-{
- // only do it if no more place
- if( m_uiCount == m_uiSize ) {
- if( m_uiSize == 0 ) {
- // was empty, alloc some memory
- m_uiSize = WX_ARRAY_DEFAULT_INITIAL_SIZE;
- m_pItems = new long[m_uiSize];
- }
- else
- {
- // add 50% but not too much
- uint uiIncrement = m_uiSize >> 1;
- if ( uiIncrement > ARRAY_MAXSIZE_INCREMENT )
- uiIncrement = ARRAY_MAXSIZE_INCREMENT;
- m_uiSize += uiIncrement;
- long *pNew = new long[m_uiSize];
-
- // copy data to new location
- memcpy(pNew, m_pItems, m_uiCount*sizeof(long));
- delete [] m_pItems;
- m_pItems = pNew;
- }
- }
-}
-
-// dtor
-wxBaseArray::~wxBaseArray()
-{
- DELETEA(m_pItems);
+#define _WX_DEFINE_BASEARRAY(T, name) \
+/* ctor */ \
+name::name() \
+{ \
+ m_nSize = \
+ m_nCount = 0; \
+ m_pItems = (T *)NULL; \
+} \
+ \
+/* copy ctor */ \
+name::name(const name& src) \
+{ \
+ m_nSize = /* not src.m_nSize to save memory */ \
+ m_nCount = src.m_nCount; \
+ \
+ if ( m_nSize != 0 ) { \
+ m_pItems = new T[m_nSize]; \
+ /* only copy if allocation succeeded */ \
+ if ( m_pItems ) { \
+ memcpy(m_pItems, src.m_pItems, m_nCount*sizeof(T)); \
+ } \
+ else { \
+ m_nSize = 0; \
+ } \
+ } \
+ else \
+ m_pItems = (T *) NULL; \
+} \
+ \
+/* assignment operator */ \
+name& name::operator=(const name& src) \
+{ \
+ wxDELETEA(m_pItems); \
+ \
+ m_nSize = /* not src.m_nSize to save memory */ \
+ m_nCount = src.m_nCount; \
+ \
+ if ( m_nSize != 0 ){ \
+ m_pItems = new T[m_nSize]; \
+ /* only copy if allocation succeeded */ \
+ if ( m_pItems ) { \
+ memcpy(m_pItems, src.m_pItems, m_nCount*sizeof(T)); \
+ } \
+ else { \
+ m_nSize = 0; \
+ } \
+ } \
+ else \
+ m_pItems = (T *) NULL; \
+ \
+ return *this; \
+} \
+ \
+/* grow the array */ \
+void name::Grow(size_t nIncrement) \
+{ \
+ /* only do it if no more place */ \
+ if( m_nCount == m_nSize ) { \
+ if( m_nSize == 0 ) { \
+ /* was empty, alloc some memory */ \
+ m_pItems = new T[WX_ARRAY_DEFAULT_INITIAL_SIZE]; \
+ /* only grow if allocation succeeded */ \
+ if ( m_pItems ) { \
+ m_nSize = WX_ARRAY_DEFAULT_INITIAL_SIZE; \
+ } \
+ } \
+ else \
+ { \
+ /* 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 ) { \
+ m_nSize += nIncrement; \
+ /* copy data to new location */ \
+ memcpy(pNew, m_pItems, m_nCount*sizeof(T)); \
+ delete [] m_pItems; \
+ m_pItems = pNew; \
+ } \
+ } \
+ } \
+} \
+ \
+/* dtor */ \
+name::~name() \
+{ \
+ wxDELETEA(m_pItems); \
+} \
+ \
+/* clears the list */ \
+void name::Clear() \
+{ \
+ m_nSize = \
+ m_nCount = 0; \
+ \
+ wxDELETEA(m_pItems); \
+} \
+ \
+/* pre-allocates memory (frees the previous data!) */ \
+void name::Alloc(size_t nSize) \
+{ \
+ /* only if old buffer was not big enough */ \
+ if ( nSize > m_nSize ) { \
+ wxDELETEA(m_pItems); \
+ m_nSize = 0; \
+ m_pItems = new T[nSize]; \
+ /* only alloc if allocation succeeded */ \
+ if ( m_pItems ) { \
+ m_nSize = nSize; \
+ } \
+ } \
+ \
+ m_nCount = 0; \
+} \
+ \
+/* minimizes the memory usage by freeing unused memory */ \
+void name::Shrink() \
+{ \
+ /* only do it if we have some memory to free */ \
+ if( m_nCount < m_nSize ) { \
+ /* allocates exactly as much memory as we need */ \
+ T *pNew = new T[m_nCount]; \
+ /* only shrink if allocation succeeded */ \
+ if ( pNew ) { \
+ /* copy data to new location */ \
+ memcpy(pNew, m_pItems, m_nCount*sizeof(T)); \
+ delete [] m_pItems; \
+ m_pItems = pNew; \
+ } \
+ } \
+} \
+ \
+/* searches the array for an item (forward or backwards) */ \
+int name::Index(T lItem, bool bFromEnd) const \
+{ \
+ if ( bFromEnd ) { \
+ if ( m_nCount > 0 ) { \
+ size_t n = m_nCount; \
+ do { \
+ if ( m_pItems[--n] == lItem ) \
+ return n; \
+ } \
+ while ( n != 0 ); \
+ } \
+ } \
+ else { \
+ for( size_t n = 0; n < m_nCount; n++ ) { \
+ if( m_pItems[n] == lItem ) \
+ return n; \
+ } \
+ } \
+ \
+ return wxNOT_FOUND; \
+} \
+ \
+/* search for a place to insert item into sorted array (binary search) */ \
+size_t name::IndexForInsert(T lItem, CMPFUNC fnCompare) const \
+{ \
+ size_t i, \
+ lo = 0, \
+ hi = m_nCount; \
+ int res; \
+ \
+ while ( lo < hi ) { \
+ i = (lo + hi)/2; \
+ \
+ res = (*fnCompare)((const void *)(long)lItem, \
+ (const void *)(long)(m_pItems[i])); \
+ if ( res < 0 ) \
+ hi = i; \
+ else if ( res > 0 ) \
+ lo = i + 1; \
+ else { \
+ lo = i; \
+ break; \
+ } \
+ } \
+ \
+ return lo; \
+} \
+ \
+/* search for an item in a sorted array (binary search) */ \
+int name::Index(T lItem, CMPFUNC fnCompare) const \
+{ \
+ size_t n = IndexForInsert(lItem, fnCompare); \
+ \
+ return n < m_nCount && m_pItems[n] == lItem ? (int)n : wxNOT_FOUND; \
+} \
+ \
+/* add item at the end */ \
+void name::Add(T lItem, size_t nInsert) \
+{ \
+ 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 */ \
+void name::Add(T lItem, CMPFUNC fnCompare) \
+{ \
+ Insert(lItem, IndexForInsert(lItem, fnCompare)); \
+} \
+ \
+/* add item at the given position */ \
+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(nInsert); \
+ \
+ memmove(&m_pItems[nIndex + nInsert], &m_pItems[nIndex], \
+ (m_nCount - nIndex)*sizeof(T)); \
+ 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, size_t nRemove) \
+{ \
+ 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 + nRemove], \
+ (m_nCount - nIndex - nRemove)*sizeof(T)); \
+ m_nCount -= nRemove; \
+} \
+ \
+/* removes item from array (by value) */ \
+void name::Remove(T lItem) \
+{ \
+ int iIndex = Index(lItem); \
+ \
+ wxCHECK_RET( iIndex != wxNOT_FOUND, \
+ wxT("removing inexistent item in wxArray::Remove") ); \
+ \
+ RemoveAt((size_t)iIndex); \
+} \
+ \
+/* sort array elements using passed comparaison function */ \
+void name::Sort(CMPFUNC fCmp) \
+{ \
+ qsort(m_pItems, m_nCount, sizeof(T), fCmp); \
}
-// clears the list
-void wxBaseArray::Clear()
-{
- m_uiSize =
- m_uiCount = 0;
-
- DELETEA(m_pItems);
- m_pItems = NULL;
-}
-
-// pre-allocates memory (frees the previous data!)
-void wxBaseArray::Alloc(uint uiSize)
-{
- wxASSERT( uiSize > 0 );
-
- // only if old buffer was not big enough
- if ( uiSize > m_uiSize ) {
- DELETEA(m_pItems);
- m_pItems = new long[uiSize];
- m_uiSize = uiSize;
- }
+_WX_DEFINE_BASEARRAY(const void *, wxBaseArrayPtrVoid)
+_WX_DEFINE_BASEARRAY(short, wxBaseArrayShort)
+_WX_DEFINE_BASEARRAY(int, wxBaseArrayInt)
+_WX_DEFINE_BASEARRAY(long, wxBaseArrayLong)
+//_WX_DEFINE_BASEARRAY(double, wxBaseArrayDouble)
- m_uiCount = 0;
-}
-
-// searches the array for an item (forward or backwards)
-int wxBaseArray::Index(long lItem, Bool bFromEnd) const
-{
- if ( bFromEnd ) {
- if ( m_uiCount > 0 ) {
- uint ui = m_uiCount;
- do {
- if ( m_pItems[--ui] == lItem )
- return ui;
- }
- while ( ui != 0 );
- }
- }
- else {
- for( uint ui = 0; ui < m_uiCount; ui++ ) {
- if( m_pItems[ui] == lItem )
- return ui;
- }
- }
-
- return NOT_FOUND;
-}
-
-// add item at the end
-void wxBaseArray::Add(long lItem)
-{
- Grow();
- m_pItems[m_uiCount++] = lItem;
-}
-
-// add item at the given position
-void wxBaseArray::Insert(long lItem, uint uiIndex)
-{
- wxCHECK( uiIndex <= m_uiCount );
-
- Grow();
-
- memmove(&m_pItems[uiIndex + 1], &m_pItems[uiIndex],
- (m_uiCount - uiIndex)*sizeof(long));
- m_pItems[uiIndex] = lItem;
- m_uiCount++;
-}
-
-// removes item from array (by index)
-void wxBaseArray::Remove(uint uiIndex)
-{
- wxCHECK( uiIndex <= m_uiCount );
-
- memmove(&m_pItems[uiIndex], &m_pItems[uiIndex + 1],
- (m_uiCount - uiIndex - 1)*sizeof(long));
- m_uiCount--;
-}
-
-// removes item from array (by value)
-void wxBaseArray::Remove(long lItem)
-{
- int iIndex = Index(lItem);
-
- wxCHECK( iIndex != NOT_FOUND );
-
- Remove((uint)iIndex);
-}
-
-// sort array elements using passed comparaison function
-void wxBaseArray::Sort(CMPFUNC fCmp)
-{
- qsort(m_pItems, m_uiCount, sizeof(long), fCmp);
-}
projects / wxWidgets.git / blobdiff