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 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Netscape Public License
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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.
 *
 * The Original Code is Mozilla Communicator client 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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#ifndef nsContainerBox_h___
#define nsContainerBox_h___

#include "nsBox.h"
#include "nsCOMPtr.h" 
#include "nsIBoxLayout.h"

class nsFrameList;

class nsContainerBox : public nsBox {

public:

  NS_IMETHOD GetChildBox(nsIBox** aBox);

  nsContainerBox(nsIPresShell* aShell);
  virtual ~nsContainerBox();

  void Destroy(nsBoxLayoutState& aState);

  NS_IMETHOD SetLayoutManager(nsIBoxLayout* aLayout);
  NS_IMETHOD GetLayoutManager(nsIBoxLayout** aLayout);
  NS_IMETHOD GetPrefSize(nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
  NS_IMETHOD GetMinSize(nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
  NS_IMETHOD GetMaxSize(nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
  NS_IMETHOD GetAscent(nsBoxLayoutState& aBoxLayoutState, nscoord& aAscent);
  NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState);
  NS_IMETHOD RelayoutChildAtOrdinal(nsBoxLayoutState& aState, nsIBox* aChild);
  NS_IMETHOD GetIndexOf(nsIBox* aChild, PRInt32* aIndex);

  virtual nsIBox* GetBoxAt(PRInt32 aIndex);
  virtual nsIBox* GetBox(nsIFrame* aFrame);
  virtual PRInt32 GetChildCount();
  virtual void ClearChildren(nsBoxLayoutState& aState);
  virtual PRInt32 CreateBoxList(nsBoxLayoutState& aState, nsIFrame* aList, nsIBox*& first, nsIBox*& last);
  virtual void RemoveAfter(nsBoxLayoutState& aState, nsIBox* aPrev);
  virtual void Remove(nsBoxLayoutState& aState, nsIFrame* aChild);
  virtual void Prepend(nsBoxLayoutState& aState, nsIFrame* aList);
  virtual void Append(nsBoxLayoutState& aState, nsIFrame* aList);
  virtual void Insert(nsBoxLayoutState& aState, nsIFrame* aPrevFrame, nsIFrame* aList);
  virtual void InsertAfter(nsBoxLayoutState& aState, nsIBox* aPrev, nsIFrame* aList);
  virtual void InitChildren(nsBoxLayoutState& aState, nsIFrame* aList);
  virtual nsIBox* GetPrevious(nsIFrame* aChild);
  virtual void SanityCheck(nsFrameList& aFrameList);
  virtual void SetDebugOnChildList(nsBoxLayoutState& aState, nsIBox* aChild, PRBool aDebug);
  virtual void CheckBoxOrder(nsBoxLayoutState& aState);
  
  static nsresult LayoutChildAt(nsBoxLayoutState& aState, nsIBox* aBox, const nsRect& aRect);


protected:

  //virtual nsresult LayoutChildAt(nsBoxLayoutState& aState, nsIBox* aBox, const nsRect& aRect, PRUint32 aFlags);

#ifdef DEBUG_LAYOUT
  virtual void GetBoxName(nsAutoString& aName);
#endif

  nsIBox* mFirstChild;
  nsIBox* mLastChild;
  PRInt32 mChildCount;
  PRBool mOrderBoxes;
  nsCOMPtr<nsIBoxLayout> mLayoutManager;
};

#endif