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 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
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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.
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 * Contributor(s):
 *
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/**

 
**/

#ifndef nsButtonFrameRenderer_h___
#define nsButtonFrameRenderer_h___

#include "nsCoord.h"
#include "nsCOMPtr.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();
      virtual ~nsButtonFrameRenderer();


   // These three functions all assume a "background" layer within the
   // button, which is itself in the foreground layer.
	 virtual void PaintButton(nsIPresContext* aPresContext,
							  nsIRenderingContext& aRenderingContext,
							  const nsRect& aDirtyRect,
							  const nsRect& aRect);

	 virtual void PaintOutlineAndFocusBorders(nsIPresContext* aPresContext,
						  nsIRenderingContext& aRenderingContext,
						  const nsRect& aDirtyRect,
						  const nsRect& aRect);

	 virtual void PaintBorderAndBackground(nsIPresContext* aPresContext,
						  nsIRenderingContext& aRenderingContext,
						  const nsRect& aDirtyRect,
						  const nsRect& aRect);

	virtual void SetNameSpace(PRInt32 aNameSpace);
	virtual void SetFrame(nsFrame* aFrame, nsIPresContext* aPresContext);
 
	virtual void SetDisabled(PRBool aDisabled, PRBool notify);

	PRBool isActive();
	PRBool isDisabled();

	virtual void GetButtonOutlineRect(const nsRect& aRect, nsRect& aResult);
	virtual void GetButtonOuterFocusRect(const nsRect& aRect, nsRect& aResult);
	virtual void GetButtonRect(const nsRect& aRect, nsRect& aResult);
	virtual void GetButtonInnerFocusRect(const nsRect& aRect, nsRect& aResult);
	virtual void GetButtonContentRect(const nsRect& aRect, nsRect& aResult);
  virtual nsMargin GetButtonOuterFocusBorderAndPadding();
  virtual nsMargin GetButtonBorderAndPadding();
  virtual nsMargin GetButtonInnerFocusMargin();
  virtual nsMargin GetButtonInnerFocusBorderAndPadding();
  virtual nsMargin GetButtonOutlineBorderAndPadding();
  virtual nsMargin GetFullButtonBorderAndPadding();
  virtual nsMargin GetAddedButtonBorderAndPadding();

  virtual nsresult GetStyleContext(PRInt32 aIndex, nsIStyleContext** aStyleContext) const;
  virtual nsresult SetStyleContext(PRInt32 aIndex, nsIStyleContext* aStyleContext);
	virtual void ReResolveStyles(nsIPresContext* aPresContext);

  virtual void Redraw(nsIPresContext* aPresContext);

  virtual nsIFrame* GetFrame();
  virtual PRInt32 GetNameSpace();

protected:

private:

	// cached styles for focus and outline.
	nsCOMPtr<nsIStyleContext> mBorderStyle;
	nsCOMPtr<nsIStyleContext> mInnerFocusStyle;
	nsCOMPtr<nsIStyleContext> mOuterFocusStyle;

	PRInt32 mNameSpace;
	nsFrame* mFrame;

  nsRect mOutlineRect;
};


#endif

