1 files changed, 35 insertions, 0 deletions
diff --git a/layout/svg/nsSVGFilterPaintCallback.h b/layout/svg/nsSVGFilterPaintCallback.h
new file mode 100644
index 000000000..3c4bf3f70
--- /dev/null
+++ b/layout/svg/nsSVGFilterPaintCallback.h
@@ -0,0 +1,35 @@
+/* -*- 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:
+  typedef mozilla::image::DrawResult DrawResult;
+
+  /**
+   * 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 DrawResult Paint(gfxContext& aContext, nsIFrame *aTarget,
+                           const gfxMatrix& aTransform,
+                           const nsIntRect *aDirtyRect) = 0;
+};
+
+#endif