/* -*- 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) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
 *
 *
 * 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
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 * ***** END LICENSE BLOCK ***** */
 
#ifndef nsRenderingContextXp_h___
#define nsRenderingContextXp_h___ 1

#include "nsXPrintContext.h"
#include "nsRenderingContextXlib.h"

/* Rendering context class to match the special needs of Xprint (X11 print
 * system). Nearly identical to nsRenderingContextXlib - except two details:
 * - "offscreen" drawing surfaces are not supported by printers, therefore
 *   we "disable" those functions here by overriding them with empty versions.
 * - images are handeled by nsXPrintContext class instead of nsImageXlib
 */
class nsRenderingContextXp : public nsRenderingContextXlib
{
 public:
  nsRenderingContextXp();
  virtual ~nsRenderingContextXp();
   
  NS_IMETHOD Init(nsIDeviceContext* aContext);
  NS_IMETHOD Init(nsIDeviceContext* aContext, nsIWidget *aWindow);
  NS_IMETHOD Init(nsIDeviceContext* aContext, nsDrawingSurface aSurface);

  NS_IMETHOD LockDrawingSurface(PRInt32 aX, PRInt32 aY, PRUint32 aWidth, PRUint32 aHeight,
                                void **aBits, PRInt32 *aStride, PRInt32 *aWidthBytes,
                                PRUint32 aFlags);
  NS_IMETHOD UnlockDrawingSurface(void);

  NS_IMETHOD SelectOffScreenDrawingSurface(nsDrawingSurface aSurface);
  NS_IMETHOD GetDrawingSurface(nsDrawingSurface *aSurface);

  NS_IMETHOD CreateDrawingSurface(const nsRect& aBounds, PRUint32 aSurfFlags, nsDrawingSurface &aSurface);
  
  NS_IMETHOD DrawImage(imgIContainer *aImage, const nsRect * aSrcRect, const nsPoint * aDestPoint);
  NS_IMETHOD DrawScaledImage(imgIContainer *aImage, const nsRect * aSrcRect, const nsRect * aDestRect);

  NS_IMETHOD CopyOffScreenBits(nsDrawingSurface aSrcSurf, PRInt32 aSrcX, PRInt32 aSrcY,
                               const nsRect &aDestBounds, PRUint32 aCopyFlags);

protected:
  nsXPrintContext *mPrintContext; /* identical to |mRenderingSurface|
                                   * (except the different type) 
                                   */
};
#endif /* !nsRenderingContextXp_h___ */