/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

#ifndef nsRadioControlFrame_h___
#define nsRadioControlFrame_h___

#include "nsFormControlFrame.h"
#include "nsVoidArray.h"
#include "nsString.h"
class nsIAtom;

// nsRadioControlFrame

class nsRadioControlFrame : public nsFormControlFrame 
{
public:
  nsRadioControlFrame(nsIContent* aContent, nsIFrame* aParentFrame);

  virtual void PostCreateWidget(nsIPresContext* aPresContext);

  virtual PRBool GetChecked(PRBool aGetInitialValue);
  virtual void   SetChecked(PRBool aValue, PRBool aSetInitialValue);

  virtual PRInt32 GetMaxNumValues() { return 1; }
  
  virtual PRBool GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
                                nsString* aValues, nsString* aNames);

  virtual void MouseClicked(nsIPresContext* aPresContext);
  virtual void Reset();
  virtual const nsIID& GetCID();

  virtual const nsIID& GetIID();

protected:

  virtual ~nsRadioControlFrame();

  virtual void GetDesiredSize(nsIPresContext* aPresContext,
                              const nsReflowState& aReflowState,
                              nsReflowMetrics& aDesiredLayoutSize,
                              nsSize& aDesiredWidgetSize);
  PRBool *mInitialChecked;
  PRBool  mForcedChecked;   
};

// nsRadioControlGroup

class nsRadioControlGroup
{
public:
  nsRadioControlGroup(nsString& aName);
  virtual ~nsRadioControlGroup();

  PRBool               AddRadio(nsRadioControlFrame* aRadio);
  PRInt32              GetRadioCount() const;
  nsRadioControlFrame* GetRadioAt(PRInt32 aIndex) const;
  PRBool               RemoveRadio(nsRadioControlFrame* aRadio);

  nsRadioControlFrame* GetCheckedRadio();
  void                 SetCheckedRadio(nsRadioControlFrame* aRadio);
  void                 GetName(nsString& aNameResult) const;

protected:
  nsString             mName;
  nsVoidArray          mRadios;
  nsRadioControlFrame* mCheckedRadio;
};

#endif