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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is nsValueArray.h/nsValueArray.cpp code, released
* Dec 28, 2001.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 2001 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Garrett Arch Blythe, 20-December-2001
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the MPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the MPL or the GPL.
*/
#ifndef nsValueArray_h___
#define nsValueArray_h___
//
// nsValueArray.h
//
// Implement an array class to store unsigned integer values.
// The maximum value must be known up front. Once known, the
// smallest memory representation will be attempted; i.e. if the
// maximum value was 1275, then 2 bytes (uint16) would represent each value
// in the array instead of 4 bytes (uint32).
//
#include "nscore.h"
typedef PRUint32 nsValueArrayCount;
typedef PRUint32 nsValueArrayIndex;
typedef PRUint32 nsValueArrayValue;
#define NSVALUEARRAY_INVALID ((nsValueArrayValue)-1)
class NS_COM nsValueArray {
public:
nsValueArray(nsValueArrayValue aMaxValue,
nsValueArrayCount aInitialCapacity = 0);
~nsValueArray();
//
// Assignment.
//
public:
nsValueArray& operator=(const nsValueArray& other);
//
// Array size information.
// Ability to add more values without growing is Capacity - Count.
//
public:
inline nsValueArrayCount Count() const {
return mCount;
}
inline nsValueArrayCount Capacity() const {
return mCapacity;
}
void Compact();
//
// Array access.
//
public:
nsValueArrayValue ValueAt(nsValueArrayIndex aIndex) const;
inline nsValueArrayValue operator[](nsValueArrayIndex aIndex) const {
return ValueAt(aIndex);
}
nsValueArrayIndex IndexOf(nsValueArrayValue aPossibleValue) const;
inline PRBool AppendValue(nsValueArrayValue aValue) {
return InsertValueAt(aValue, Count());
}
inline PRBool RemoveValue(nsValueArrayValue aValue) {
return RemoveValueAt(IndexOf(aValue));
}
PRBool InsertValueAt(nsValueArrayValue aValue, nsValueArrayIndex aIndex);
PRBool RemoveValueAt(nsValueArrayIndex aIndex);
//
// Data members.
//
private:
nsValueArrayCount mCount;
nsValueArrayCount mCapacity;
PRUint8* mValueArray;
PRUint8 mBytesPerValue;
};
#endif /* nsValueArray_h___ */
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