/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
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 *
 * 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.
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 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
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 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *
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 * 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
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#ifndef nsFontMetricsPS_h__
#define nsFontMetricsPS_h__

#include "nsIFontMetrics.h"
#include "nsAFMObject.h"
#include "nsFont.h"
#include "nsString.h"
#include "nsUnitConversion.h"
#include "nsIDeviceContext.h"
#include "nsCOMPtr.h"
#include "nsCRT.h"

class nsDeviceContextPS;

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

  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  GetSpaceWidth(nscoord& aAveCharWidth);
  NS_IMETHOD  GetFont(const nsFont *&aFont);
  NS_IMETHOD  GetLangGroup(nsIAtom** aLangGroup);
  NS_IMETHOD  GetFontHandle(nsFontHandle &aHandle);
  NS_IMETHOD  GetStringWidth(const char *String,nscoord &aWidth,nscoord aLength);
  NS_IMETHOD  GetStringWidth(const PRUnichar *aString,nscoord &aWidth,nscoord aLength);

  PRInt16 GetFontIndex() { return mFontIndex; }

#if defined(XP_WIN)
// this routine is defined here so the PostScript module can be debugged
// on the windows platform

  /**
   * Returns the average character width
   */
  NS_IMETHOD  GetAveCharWidth(nscoord& aAveCharWidth){return NS_OK;}
#endif


private:
  nsCOMPtr<nsIAtom> mLangGroup;

protected:
  void RealizeFont();

  nsDeviceContextPS   *mDeviceContext;
  nsFont              *mFont;
  nscoord             mHeight;
  nscoord             mAscent;
  nscoord             mDescent;
  nscoord             mLeading;
  nscoord             mEmHeight;
  nscoord             mEmAscent;
  nscoord             mEmDescent;
  nscoord             mMaxHeight;
  nscoord             mMaxAscent;
  nscoord             mMaxDescent;
  nscoord             mMaxAdvance;
  nscoord             mXHeight;
  nscoord             mSuperscriptOffset;
  nscoord             mSubscriptOffset;
  nscoord             mStrikeoutSize;
  nscoord             mStrikeoutOffset;
  nscoord             mUnderlineSize;
  nscoord             mUnderlineOffset;
  nscoord             mSpaceWidth;
  PRInt16             mFontIndex;

public:
  nsAFMObject         *mAFMInfo;
};

#endif