/layout/svg/base/src/nsISVGChildFrame.h

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/* -*- 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 Original Code is the Mozilla SVG project.
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 * The Initial Developer of the Original Code is 
 * Crocodile Clips Ltd..
 * Portions created by the Initial Developer are Copyright (C) 2002
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 * Contributor(s):
 *    Alex Fritze <alex.fritze@crocodile-clips.com> (original author)
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#ifndef __NS_ISVGCHILDFRAME_H__
#define __NS_ISVGCHILDFRAME_H__


#include "nsISupports.h"
#include "nsCOMPtr.h"
#include "nsISVGRendererRegion.h"

class nsISVGRendererCanvas;
class nsIPresContext;
class nsIDOMSVGRect;
struct nsRect;

// {1F23A200-B583-40EC-8564-9E6740C4DD3A}
#define NS_ISVGCHILDFRAME_IID \
{ 0x1f23a200, 0xb583, 0x40ec, { 0x85, 0x64, 0x9e, 0x67, 0x40, 0xc4, 0xdd, 0x3a } }

class nsISVGChildFrame : public nsISupports {
public:

  NS_DEFINE_STATIC_IID_ACCESSOR(NS_ISVGCHILDFRAME_IID)

  // XXX Ideally we don't want to pass the dirtyRect along but extract
  // it from nsIRenderingContext where needed (only in foreign objects)
  NS_IMETHOD Paint(nsISVGRendererCanvas* canvas, const nsRect& dirtyRectTwips)=0;
  NS_IMETHOD GetFrameForPoint(float x, float y, nsIFrame** hit)=0;
  NS_IMETHOD_(already_AddRefed<nsISVGRendererRegion>) GetCoveredRegion()=0;
  NS_IMETHOD InitialUpdate()=0;
  NS_IMETHOD NotifyCTMChanged()=0;
  NS_IMETHOD NotifyRedrawSuspended()=0;
  NS_IMETHOD NotifyRedrawUnsuspended()=0;

  // XXX move this function into interface nsISVGLocatableMetrics
  NS_IMETHOD GetBBox(nsIDOMSVGRect **_retval)=0; // bbox in local coords
};

#endif // __NS_ISVGCHILDFRAME_H__

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