mirror of
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211 lines
5.8 KiB
C++
211 lines
5.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsVoidArray_h___
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#define nsVoidArray_h___
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#include "nscore.h"
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class nsISizeOfHandler;
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// Enumerator callback function. Return PR_FALSE to stop
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typedef PRBool (*nsVoidArrayEnumFunc)(void* aElement, void *aData);
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/// A basic zero-based array of void*'s that manages its own memory
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class NS_COM nsVoidArray {
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public:
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nsVoidArray();
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nsVoidArray(PRInt32 aCount); // initial count of aCount elements set to nsnull
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virtual ~nsVoidArray();
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nsVoidArray& operator=(const nsVoidArray& other);
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void SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
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PRInt32 Count() const {
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return mCount;
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}
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void* ElementAt(PRInt32 aIndex) const;
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void* operator[](PRInt32 aIndex) const { return ElementAt(aIndex); }
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PRInt32 IndexOf(void* aPossibleElement) const;
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PRBool InsertElementAt(void* aElement, PRInt32 aIndex);
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PRBool ReplaceElementAt(void* aElement, PRInt32 aIndex);
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PRBool AppendElement(void* aElement) {
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return InsertElementAt(aElement, mCount);
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}
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PRBool RemoveElement(void* aElement);
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PRBool RemoveElementAt(PRInt32 aIndex);
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void Clear();
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void Compact();
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PRBool EnumerateForwards(nsVoidArrayEnumFunc aFunc, void* aData);
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PRBool EnumerateBackwards(nsVoidArrayEnumFunc aFunc, void* aData);
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protected:
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void** mArray;
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// Packed bits. The highest 31 bits are the array's size, which must
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// always be 0 mod 2. The lowest bit is a flag that indicates
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// whether or not we "own" mArray, and must free() it when
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// destroyed.
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PRInt32 mInfo;
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static const PRInt32 kArrayOwnerMask; // 1 << 31
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static const PRInt32 kArraySizeMask; // ~kArrayOwnerMask
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// bit twiddlers
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PRInt32 GetArraySize() const;
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void SetArraySize(PRInt32 aSize);
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PRBool IsArrayOwner() const;
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void SetArrayOwner(PRBool aOwner);
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// the number of elements currently in the array.
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PRInt32 mCount;
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private:
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/// Copy constructors are not allowed
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nsVoidArray(const nsVoidArray& other);
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};
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// A zero-based array with a bit of automatic internal storage
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class NS_COM nsAutoVoidArray : public nsVoidArray {
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public:
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nsAutoVoidArray();
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protected:
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// The internal storage. Note that this value must be divisible by
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// two because we use the LSB of mInfo to indicate array ownership.
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void* mElements[8];
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};
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class nsString;
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typedef PRBool (*nsStringArrayEnumFunc)(nsString& aElement, void *aData);
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class NS_COM nsStringArray: protected nsVoidArray
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{
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public:
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nsStringArray(void);
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virtual ~nsStringArray(void);
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nsStringArray& operator=(const nsStringArray& other);
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void SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
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PRInt32 Count(void) const {
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return mCount;
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}
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void StringAt(PRInt32 aIndex, nsString& aString) const;
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nsString* StringAt(PRInt32 aIndex) const;
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nsString* operator[](PRInt32 aIndex) const { return StringAt(aIndex); }
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PRInt32 IndexOf(const nsString& aPossibleString) const;
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PRInt32 IndexOfIgnoreCase(const nsString& aPossibleString) const;
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PRBool InsertStringAt(const nsString& aString, PRInt32 aIndex);
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PRBool ReplaceStringAt(const nsString& aString, PRInt32 aIndex);
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PRBool AppendString(const nsString& aString) {
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return InsertStringAt(aString, mCount);
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}
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PRBool RemoveString(const nsString& aString);
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PRBool RemoveStringIgnoreCase(const nsString& aString);
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PRBool RemoveStringAt(PRInt32 aIndex);
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void Clear(void);
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void Compact(void) {
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nsVoidArray::Compact();
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}
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PRBool EnumerateForwards(nsStringArrayEnumFunc aFunc, void* aData);
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PRBool EnumerateBackwards(nsStringArrayEnumFunc aFunc, void* aData);
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private:
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/// Copy constructors are not allowed
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nsStringArray(const nsStringArray& other);
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};
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class nsCString;
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typedef PRBool (*nsCStringArrayEnumFunc)(nsCString& aElement, void *aData);
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class NS_COM nsCStringArray: protected nsVoidArray
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{
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public:
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nsCStringArray(void);
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virtual ~nsCStringArray(void);
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nsCStringArray& operator=(const nsCStringArray& other);
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void SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
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PRInt32 Count(void) const {
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return mCount;
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}
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void CStringAt(PRInt32 aIndex, nsCString& aCString) const;
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nsCString* CStringAt(PRInt32 aIndex) const;
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nsCString* operator[](PRInt32 aIndex) const { return CStringAt(aIndex); }
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PRInt32 IndexOf(const nsCString& aPossibleString) const;
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PRInt32 IndexOfIgnoreCase(const nsCString& aPossibleString) const;
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PRBool InsertCStringAt(const nsCString& aCString, PRInt32 aIndex);
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PRBool ReplaceCStringAt(const nsCString& aCString, PRInt32 aIndex);
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PRBool AppendCString(const nsCString& aCString) {
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return InsertCStringAt(aCString, mCount);
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}
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PRBool RemoveCString(const nsCString& aCString);
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PRBool RemoveCStringIgnoreCase(const nsCString& aCString);
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PRBool RemoveCStringAt(PRInt32 aIndex);
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void Clear(void);
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void Compact(void) {
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nsVoidArray::Compact();
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}
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PRBool EnumerateForwards(nsCStringArrayEnumFunc aFunc, void* aData);
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PRBool EnumerateBackwards(nsCStringArrayEnumFunc aFunc, void* aData);
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private:
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/// Copy constructors are not allowed
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nsCStringArray(const nsCStringArray& other);
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};
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#endif /* nsVoidArray_h___ */
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