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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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 mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of 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 MPL, 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 MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsFontMetricsMac_h__
#define nsFontMetricsMac_h__

#include <TextEdit.h>	// for TextStyle

#include "nsIFontMetrics.h"
#include "nsFont.h"
#include "nsString.h"
#include "nsUnitConversion.h"
#include "nsIDeviceContext.h"
#include "nsCRT.h"
#include "nsIAtom.h"
#include "nsCOMPtr.h"
class nsUnicodeFontMappingMac;

class nsFontMetricsMac : public nsIFontMetrics
{
public:
  nsFontMetricsMac();
  virtual ~nsFontMetricsMac();

  NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW

  NS_DECL_ISUPPORTS

  NS_IMETHOD  Init(const nsFont& aFont, nsIAtom* aLangGroup, nsIDeviceContext* aContext);
  NS_IMETHOD  Destroy();

  NS_IMETHOD  GetXHeight(nscoord& aResult);
  NS_IMETHOD  GetSuperscriptOffset(nscoord& aResult);
  NS_IMETHOD  GetSubscriptOffset(nscoord& aResult);
  NS_IMETHOD  GetStrikeout(nscoord& aOffset, nscoord& aSize);
  NS_IMETHOD  GetUnderline(nscoord& aOffset, nscoord& aSize);
  NS_IMETHOD  GetHeight(nscoord &aHeight);
  NS_IMETHOD  GetNormalLineHeight(nscoord &aHeight);
  NS_IMETHOD  GetLeading(nscoord &aLeading);
  NS_IMETHOD  GetEmHeight(nscoord &aHeight);
  NS_IMETHOD  GetEmAscent(nscoord &aAscent);
  NS_IMETHOD  GetEmDescent(nscoord &aDescent);
  NS_IMETHOD  GetMaxHeight(nscoord &aHeight);
  NS_IMETHOD  GetMaxAscent(nscoord &aAscent);
  NS_IMETHOD  GetMaxDescent(nscoord &aDescent);
  NS_IMETHOD  GetMaxAdvance(nscoord &aAdvance);
  NS_IMETHOD  GetAveCharWidth(nscoord &aAveCharWidth);
  NS_IMETHOD  GetWidths(const nscoord *&aWidths);
  NS_IMETHOD  GetLangGroup(nsIAtom** aLangGroup);
  NS_IMETHOD  GetFontHandle(nsFontHandle& aHandle);
  NS_IMETHOD  GetSpaceWidth(nscoord& aSpaceCharWidth);
  virtual PRInt32 GetMaxStringLength();

  nsUnicodeFontMappingMac* GetUnicodeFontMapping();
	
protected:
	void				RealizeFont();

	short							mFontNum;
  nsUnicodeFontMappingMac *mFontMapping;
  nscoord           mEmHeight;
  nscoord           mEmAscent;
  nscoord           mEmDescent;
  nscoord           mMaxHeight;
  nscoord           mLeading;
  nscoord           mMaxAscent;
  nscoord           mMaxDescent;
  nscoord           mMaxAdvance;
  nscoord           mAveCharWidth;
  nscoord           mSpaceWidth;
  nscoord           mXHeight;
  PRInt32           mMaxStringLength;
  nsCOMPtr<nsIAtom> mLangGroup;
  nsIDeviceContext  *mContext;
};

#endif