Source code

Revision control

Copy as Markdown

Other Tools

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 LAYOUT_SVG_SVGPAINTSERVERFRAME_H_
#define LAYOUT_SVG_SVGPAINTSERVERFRAME_H_
#include "gfxRect.h"
#include "mozilla/Attributes.h"
#include "mozilla/SVGContainerFrame.h"
#include "nsCOMPtr.h"
#include "nsIFrame.h"
#include "nsIFrame.h"
#include "nsQueryFrame.h"
class gfxContext;
class gfxPattern;
namespace mozilla {
namespace gfx {
class DrawTarget;
} // namespace gfx
/**
* RAII class used to temporarily set and remove the
* NS_FRAME_DRAWING_AS_PAINTSERVER frame state bit while a frame is being
* drawn as a paint server.
*/
class MOZ_RAII AutoSetRestorePaintServerState {
public:
explicit AutoSetRestorePaintServerState(nsIFrame* aFrame) : mFrame(aFrame) {
mFrame->AddStateBits(NS_FRAME_DRAWING_AS_PAINTSERVER);
}
~AutoSetRestorePaintServerState() {
mFrame->RemoveStateBits(NS_FRAME_DRAWING_AS_PAINTSERVER);
}
private:
nsIFrame* mFrame;
};
class SVGPaintServerFrame : public SVGContainerFrame {
protected:
using DrawTarget = gfx::DrawTarget;
SVGPaintServerFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,
ClassID aID)
: SVGContainerFrame(aStyle, aPresContext, aID) {
AddStateBits(NS_FRAME_IS_NONDISPLAY);
}
public:
using imgDrawingParams = image::imgDrawingParams;
NS_DECL_ABSTRACT_FRAME(SVGPaintServerFrame)
NS_DECL_QUERYFRAME
NS_DECL_QUERYFRAME_TARGET(SVGPaintServerFrame)
/**
* Constructs a gfxPattern of the paint server rendering.
*
* @param aContextMatrix The transform matrix that is currently applied to
* the gfxContext that is being drawn to. This is needed by SVG patterns so
* that surfaces of the correct size can be created. (SVG gradients are
* vector based, so it's not used there.)
*/
virtual already_AddRefed<gfxPattern> GetPaintServerPattern(
nsIFrame* aSource, const DrawTarget* aDrawTarget,
const gfxMatrix& aContextMatrix, StyleSVGPaint nsStyleSVG::*aFillOrStroke,
float aOpacity, imgDrawingParams& aImgParams,
const gfxRect* aOverrideBounds = nullptr) = 0;
// nsIFrame methods:
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override {}
};
} // namespace mozilla
#endif // LAYOUT_SVG_SVGPAINTSERVERFRAME_H_