gecko-dev/layout/base/nsStyleChangeList.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsStyleChangeList_h___
#define nsStyleChangeList_h___
#include "nslayout.h"
#include "nsError.h"
class nsIFrame;
class nsIContent;
// XXX would all platforms support putting this inside the list?
struct nsStyleChangeData {
nsIFrame* mFrame;
nsIContent* mContent;
PRInt32 mHint;
};
static const PRUint32 kStyleChangeBufferSize = 10;
class NS_LAYOUT nsStyleChangeList {
public:
nsStyleChangeList(void);
~nsStyleChangeList(void);
PRInt32 Count(void) const {
return mCount;
}
nsresult ChangeAt(PRInt32 aIndex, nsIFrame*& aFrame, nsIContent*& aContent,
PRInt32& aHint) const;
nsresult AppendChange(nsIFrame* aFrame, nsIContent* aContent, PRInt32 aHint);
void Clear(void);
protected:
nsStyleChangeList& operator=(const nsStyleChangeList& aCopy);
PRBool operator==(const nsStyleChangeList& aOther) const;
nsStyleChangeData* mArray;
PRInt32 mArraySize;
PRInt32 mCount;
nsStyleChangeData mBuffer[kStyleChangeBufferSize];
};
#endif /* nsStyleChangeList_h___ */