/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * 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
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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
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
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 * 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
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 * ***** END LICENSE BLOCK ***** */

/**

 
**/

#ifndef nsButtonFrameRenderer_h___
#define nsButtonFrameRenderer_h___

#include "nsCoord.h"
#include "nsAutoPtr.h"
#include "nsFrame.h"

class nsStyleChangeList;


#define NS_BUTTON_RENDERER_FOCUS_INNER_CONTEXT_INDEX  0
#define NS_BUTTON_RENDERER_FOCUS_OUTER_CONTEXT_INDEX  1
#define NS_BUTTON_RENDERER_LAST_CONTEXT_INDEX   NS_BUTTON_RENDERER_FOCUS_OUTER_CONTEXT_INDEX

class nsButtonFrameRenderer {
public:

  nsButtonFrameRenderer();
  ~nsButtonFrameRenderer();

  /**
   * Create display list items for the button
   */
  nsresult DisplayButton(nsDisplayListBuilder* aBuilder,
                         nsDisplayList* aBackground, nsDisplayList* aForeground);


  void PaintOutlineAndFocusBorders(nsPresContext* aPresContext,
                                   nsRenderingContext& aRenderingContext,
                                   const nsRect& aDirtyRect,
                                   const nsRect& aRect);

  void PaintBorderAndBackground(nsPresContext* aPresContext,
                                nsRenderingContext& aRenderingContext,
                                const nsRect& aDirtyRect,
                                const nsRect& aRect,
                                PRUint32 aBGFlags);

  void SetFrame(nsFrame* aFrame, nsPresContext* aPresContext);
 
  void SetDisabled(PRBool aDisabled, PRBool notify);

  PRBool isActive();
  PRBool isDisabled();

  void GetButtonOuterFocusRect(const nsRect& aRect, nsRect& aResult);
  void GetButtonRect(const nsRect& aRect, nsRect& aResult);
  void GetButtonInnerFocusRect(const nsRect& aRect, nsRect& aResult);
  nsMargin GetButtonOuterFocusBorderAndPadding();
  nsMargin GetButtonBorderAndPadding();
  nsMargin GetButtonInnerFocusMargin();
  nsMargin GetButtonInnerFocusBorderAndPadding();
  nsMargin GetAddedButtonBorderAndPadding();

  nsStyleContext* GetStyleContext(PRInt32 aIndex) const;
  void SetStyleContext(PRInt32 aIndex, nsStyleContext* aStyleContext);
  void ReResolveStyles(nsPresContext* aPresContext);

  nsIFrame* GetFrame();

protected:

private:

  // cached styles for focus and outline.
  nsRefPtr<nsStyleContext> mBorderStyle;
  nsRefPtr<nsStyleContext> mInnerFocusStyle;
  nsRefPtr<nsStyleContext> mOuterFocusStyle;

  nsFrame* mFrame;
};


#endif

