pjs/layout/style/nsCSSRule.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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 the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the NPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
#ifndef nsCSSRule_h___
#define nsCSSRule_h___

#include "nsISupports.h"

class nsIArena;
class nsIStyleSheet;
class nsICSSStyleSheet;
class nsIPresContext;
struct nsRuleData;
class nsICSSGroupRule;

class nsCSSRule {
public:
  void* operator new(size_t size);
  void* operator new(size_t size, nsIArena* aArena);
  void operator delete(void* ptr);

  nsCSSRule(void);
  nsCSSRule(const nsCSSRule& aCopy);
  virtual ~nsCSSRule(void);

  NS_IMETHOD_(nsrefcnt) AddRef();
  NS_IMETHOD_(nsrefcnt) Release();

  NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
  NS_IMETHOD SetStyleSheet(nsICSSStyleSheet* aSheet);

  NS_IMETHOD SetParentRule(nsICSSGroupRule* aRule);

  // nsIStyleRule methods
  NS_IMETHOD GetStrength(PRInt32& aStrength) const;

  // The new mapping function.
  NS_IMETHOD MapRuleInfoInto(nsRuleData* aRuleData);

protected:
  PRUint32 mInHeap : 1;
  PRUint32 mRefCnt : 31;
  NS_DECL_OWNINGTHREAD // for thread-safety checking

  nsICSSStyleSheet*   mSheet;                         
  nsICSSGroupRule*    mParentRule;
#ifdef DEBUG_REFS
  PRInt32 mInstance;
#endif
};

#endif /* nsCSSRule_h___ */