/* -*- 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 the Mozilla SVG project.
 *
 * The Initial Developer of the Original Code is
 * Crocodile Clips Ltd..
 * Portions created by the Initial Developer are Copyright (C) 2003
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Alex Fritze <alex.fritze@crocodile-clips.com> (original author)
 *
 * 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 __NS_SVGIMAGEELEMENT_H__
#define __NS_SVGIMAGEELEMENT_H__

#include "nsSVGPathGeometryElement.h"
#include "nsIDOMSVGImageElement.h"
#include "nsIDOMSVGURIReference.h"
#include "nsImageLoadingContent.h"
#include "nsSVGString.h"
#include "nsSVGLength2.h"
#include "nsSVGPreserveAspectRatio.h"

typedef nsSVGPathGeometryElement nsSVGImageElementBase;

class nsSVGImageElement : public nsSVGImageElementBase,
                          public nsIDOMSVGImageElement,
                          public nsIDOMSVGURIReference,
                          public nsImageLoadingContent
{
  friend class nsSVGImageFrame;

protected:
  friend nsresult NS_NewSVGImageElement(nsIContent **aResult,
                                        nsINodeInfo *aNodeInfo);
  nsSVGImageElement(nsINodeInfo *aNodeInfo);
  virtual ~nsSVGImageElement();

public:
  // interfaces:
  
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIDOMSVGIMAGEELEMENT
  NS_DECL_NSIDOMSVGURIREFERENCE

  // xxx I wish we could use virtual inheritance
  NS_FORWARD_NSIDOMNODE(nsSVGImageElementBase::)
  NS_FORWARD_NSIDOMELEMENT(nsSVGImageElementBase::)
  NS_FORWARD_NSIDOMSVGELEMENT(nsSVGImageElementBase::)

  // nsIContent interface
  virtual nsresult AfterSetAttr(PRInt32 aNamespaceID, nsIAtom* aName,
                                const nsAString* aValue, PRBool aNotify);
  virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
                              nsIContent* aBindingParent,
                              PRBool aCompileEventHandlers);

  virtual PRInt32 IntrinsicState() const;

  NS_IMETHOD_(PRBool) IsAttributeMapped(const nsIAtom* name) const;

  // nsSVGPathGeometryElement methods:
  virtual void ConstructPath(gfxContext *aCtx);

  virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;

  void MaybeLoadSVGImage();
protected:
  nsresult LoadSVGImage(PRBool aForce, PRBool aNotify);

  virtual LengthAttributesInfo GetLengthInfo();
  virtual nsSVGPreserveAspectRatio *GetPreserveAspectRatio();
  virtual StringAttributesInfo GetStringInfo();

  enum { X, Y, WIDTH, HEIGHT };
  nsSVGLength2 mLengthAttributes[4];
  static LengthInfo sLengthInfo[4];

  nsSVGPreserveAspectRatio mPreserveAspectRatio;

  enum { HREF };
  nsSVGString mStringAttributes[1];
  static StringInfo sStringInfo[1];
};

#endif
