/* -*- 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) 2001
 * 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_SVGTRANSFORMLIST_H__
#define __NS_SVGTRANSFORMLIST_H__

#include "nsSVGValue.h"
#include "nsISVGValueObserver.h"
#include "nsWeakReference.h"
#include "nsIDOMSVGTransformList.h"
#include "nsTArray.h"

class nsSVGTransformList : public nsSVGValue,
                           public nsIDOMSVGTransformList,
                           public nsISVGValueObserver
{
public:
  static nsresult Create(nsIDOMSVGTransformList** aResult);
  
protected:
  nsSVGTransformList();
  virtual ~nsSVGTransformList();
  
public:
  // nsISupports interface:
  NS_DECL_ISUPPORTS

  // nsIDOMSVGTransformList interface:
  NS_DECL_NSIDOMSVGTRANSFORMLIST
  
  // remainder of nsISVGValue interface:
  NS_IMETHOD SetValueString(const nsAString& aValue);
  NS_IMETHOD GetValueString(nsAString& aValue);

  // nsISVGValueObserver
  NS_IMETHOD WillModifySVGObservable(nsISVGValue* observable,
                                     modificationType aModType);
  NS_IMETHOD DidModifySVGObservable (nsISVGValue* observable,
                                     modificationType aModType);
  
  // nsISupportsWeakReference
  // implementation inherited from nsSupportsWeakReference

  
  // other methods:
  nsIDOMSVGTransform* GetItemWithoutAddRef(PRInt32 index);
  nsIDOMSVGTransform* ElementAt(PRInt32 index);
  PRBool AppendElement(nsIDOMSVGTransform* aElement);
  static already_AddRefed<nsIDOMSVGMatrix>
  GetConsolidationMatrix(nsIDOMSVGTransformList *transforms);
  
protected:
  PRInt32 ParseParameterList(char *paramstr, float *vars, PRInt32 nvars);
  void ReleaseTransforms();
  
  nsAutoTArray<nsIDOMSVGTransform*, 8> mTransforms;
};


#endif //__NS_SVGTRANSFORMLIST_H__
