Serious-Engine/Sources/Engine/Templates/DynamicArray.h

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/* Copyright (c) 2002-2012 Croteam Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as published by
the Free Software Foundation
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
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#ifndef SE_INCL_DYNAMICARRAY_H
#define SE_INCL_DYNAMICARRAY_H
#ifdef PRAGMA_ONCE
#pragma once
#endif
#include <Engine/Base/Lists.h>
/*
* Template class for array with dynamic allocation of objects.
*/
template<class Type>
class CDynamicArray {
public:
CListHead da_BlocksList; // list of allocated memory blocks
Type **da_Pointers; // array of object pointers
INDEX da_Count; // number of objects
#if CHECKARRAYLOCKING
INDEX da_LockCt; // lock counter for getting indices
#endif
/* Grow pointer array by a given number of indices. */
void GrowPointers(INDEX iCount);
/* Shrink pointer array by a given number of indices. */
void ShrinkPointers(INDEX iCount);
/* Allocate a new memory block. */
Type *AllocBlock(INDEX iCount);
/* Get index of an object from it's pointer without locking. */
INDEX GetIndex(Type *ptMember);
public:
/* Default constructor. */
CDynamicArray(void);
/* Copy constructor. */
CDynamicArray(CDynamicArray<Type> &daOriginal);
/* Destructor -- frees all memory. */
~CDynamicArray(void);
/* Create a given number of new objects. */
Type *New(INDEX iCount = 1);
/* Destroy a given member. */
void Delete(Type *ptObject);
/* Destroy all objects, and reset the array to initial (empty) state. */
void Clear(void);
/* Get pointer to a object from it's index. */
Type *Pointer(INDEX iObject);
const Type *Pointer(INDEX iObject) const;
/* Random access operator. */
inline Type &operator[](INDEX iObject) { return *Pointer(iObject); }
inline const Type &operator[](INDEX iObject) const { return *Pointer(iObject); }
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/* Assignment operator. */
CDynamicArray<Type> &operator=(CDynamicArray<Type> &arOriginal);
/* Move all elements of another array into this one. */
void MoveArray(CDynamicArray<Type> &arOther);
/* Lock for getting indices. */
void Lock(void);
/* Unlock after getting indices. */
void Unlock(void);
/* Get index of a object from it's pointer. */
INDEX Index(Type *ptObject);
/* Get number of objects in array. */
INDEX Count(void) const;
};
#endif /* include-once check. */