/usr/include/opencollada/COLLADAFramework/COLLADAFWArray.h is in opencollada-dev 0.1.0~20140703.ddf8f47+dfsg1-2.
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Copyright (c) 2008-2009 NetAllied Systems GmbH
This file is part of COLLADAFramework.
Licensed under the MIT Open Source License,
for details please see LICENSE file or the website
http://www.opensource.org/licenses/mit-license.php
*/
#ifndef __COLLADAFW_ARRAY_H__
#define __COLLADAFW_ARRAY_H__
#include "COLLADAFWPrerequisites.h"
#include "COLLADABUPlatform.h"
#include <cassert>
namespace COLLADAFW
{
/** Array template that simplifies handling of C-arrays.*/
template<class Type>
class Array
{
public:
/** Flags to control the behavior of the array.*/
enum Flags
{
NO_FLAGS = 0x0000,
/** The memory will be released in the destructor. The memory must be allocated using
allocateMemory()*/
RELEASE_MEMORY = 0x0001,
/** Keep the ownership of the data, when this array is assigned to another one, i.e.
it will release the memory on destruction, if the RELEASE_MEMORY flag is set.*/
KEEP_OWNERSHIP_ON_ASSIGNEMNT = 0x0002
};
enum FlagCombinations
{
/** The Default flags used for allocateMemory().*/
DEFAULT_ALLOC_FLAGS = RELEASE_MEMORY,
/** The Default flags used for constructor.*/
DEFAULT_CONSTRUCTOR_FLAGS = NO_FLAGS,
/** The array ons the data and keeps ownership on assignement.*/
OWNER = RELEASE_MEMORY | KEEP_OWNERSHIP_ON_ASSIGNEMNT
};
private:
/** The data C-array. */
Type* mData;
/** The number of stored data elements in the array. */
size_t mCount;
/** The number of elements, for which is currently memory allocated. */
size_t mCapacity;
/** The arrays flags.*/
int mFlags;
public:
/** Constructor. */
Array()
: mData (0)
, mCount (0)
, mCapacity (0)
, mFlags(DEFAULT_CONSTRUCTOR_FLAGS)
{}
/** Constructor. */
Array(int flags)
: mData (0)
, mCount (0)
, mCapacity (0)
, mFlags(flags)
{}
/** Constructor. */
Array ( Type* data, size_t count )
: mData ( data )
, mCapacity ( count )
, mCount ( count )
, mFlags(DEFAULT_CONSTRUCTOR_FLAGS)
{}
/** Destructor. */
~Array ()
{
clear();
}
/** Clears the array, i.e. releasese memory if nescesary and reset all members.*/
void clear()
{
if ( mFlags & RELEASE_MEMORY)
releaseMemory();
}
/** Returns the C-style data array.*/
Type* getData () { return mData; }
/** Returns the C-style data array.*/
const Type* getData () const { return mData; }
/** Set the C-style data array.*/
void setData ( Type* data, const size_t count )
{
mData = data;
mCount = count;
mCapacity = count;
}
/** Set the C-style data array and count.*/
void setData ( Type* data, const size_t count, const size_t capacity )
{
mData = data;
mCount = count;
mCapacity = capacity;
}
/** Returns the number of elements in the array.*/
const size_t getCount() const { return mCount; }
/** Returns the number of elements in the array.*/
void setCount(size_t count) { mCount = count; }
/** The number of elements, for which is currently memory allocated. */
size_t getCapacity () const { return mCapacity; }
/** The number of elements, for which is currently memory allocated. */
void setCapacity ( const size_t capacity ) { mCapacity = capacity; }
/** Allocates memory for @a size elements of type DataType.
Must not be called more than once, without calling releaseMemory() in between.
The memory must be released using releaseMemory().
@param size The size of the array
@param flags Flags that allow to control, how the memory should be released.*/
void allocMemory ( size_t count, int flags = DEFAULT_ALLOC_FLAGS )
{
setData ( new Type[count], 0, count );
mFlags |= flags;
}
/** Releases the memory that has been allocated by allocateMemory().
Must not be called, if the memory has not been allocated by allocateMemory().*/
virtual void releaseMemory ()
{
delete[] mData;
setData ( 0, 0, 0 );
}
/** Returns true if the array is empty, false otherwise.*/
bool empty() const { return mCount == 0; }
/** Return s the index'th element in the array. No check is performed, if the index is out of bounds.*/
Type& operator[] ( size_t index ) { COLLADABU_ASSERT(index < mCapacity); return mData[index]; }
/** Return s the index'th element in the array. No check is performed, if the index is out of bounds.*/
const Type& operator[] ( size_t index ) const { return mData[index]; }
/** Returns a reference to the last element in the array. The array must not be empty.*/
Type& back() { COLLADABU_ASSERT(mData && (mCount > 0)); return mData[mCount - 1]; }
/** Returns a reference to the last element in the array. The array must not be empty.*/
const Type& back() const { COLLADABU_ASSERT(mData && (mCount > 0)); return mData[mCount - 1]; }
/** Clones the array inti @a clonedArray.*/
void cloneArray( Array<Type>& clonedArray ) const
{
clonedArray.allocMemory(getCapacity());
size_t count = getCount();
clonedArray.setCount(count);
for ( size_t i = 0; i < count; ++i)
clonedArray[i] = (*this)[i];
}
/** Disable default copy ctor. */
Array( const Array& pre );
};
} // namespace COLLADAFW
#endif // __COLLADAFW_ARRAY_H__
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