layout/svg/nsSVGFilterPaintCallback.h
author Nick Fitzgerald <fitzgen@gmail.com>
Tue, 30 Jun 2015 10:01:00 -0700
changeset 250711 6509d3f6a91fd6856985adee8efd13a40f57de7a
parent 240200 7f2cb4c27f48b2afcdf78c711eb11eae36bf0db3
child 304952 c0700bedb4f765a2fd55ab2bc71af4d6b322084d
permissions -rw-r--r--
Bug 1174906 - Add a mozilla::Variant<T1, T2, ...> template class; r=Waldo

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef __NS_SVGFILTERPAINTCALLBACK_H__
#define __NS_SVGFILTERPAINTCALLBACK_H__

#include "nsRect.h"

class nsIFrame;
class gfxContext;

class nsSVGFilterPaintCallback {
public:
  /**
   * Paint the frame contents.
   * SVG frames will have had matrix propagation set to false already.
   * Non-SVG frames have to do their own thing.
   * The caller will do a Save()/Restore() as necessary so feel free
   * to mess with context state.
   * The context will be configured to use the "user space" coordinate
   * system.
   * @param aDirtyRect the dirty rect *in user space pixels*
   * @param aTransformRoot the outermost frame whose transform should be taken
   *                       into account when painting an SVG glyph
   */
  virtual void Paint(gfxContext& aContext, nsIFrame *aTarget,
                     const gfxMatrix& aTransform,
                     const nsIntRect *aDirtyRect) = 0;
};

#endif