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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /layout/svg/SVGMaskFrame.h | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/svg/SVGMaskFrame.h')
-rw-r--r-- | layout/svg/SVGMaskFrame.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/layout/svg/SVGMaskFrame.h b/layout/svg/SVGMaskFrame.h new file mode 100644 index 0000000000..ee97415459 --- /dev/null +++ b/layout/svg/SVGMaskFrame.h @@ -0,0 +1,111 @@ +/* -*- 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_SVGMASKFRAME_H_ +#define LAYOUT_SVG_SVGMASKFRAME_H_ + +#include "mozilla/Attributes.h" +#include "mozilla/RefPtr.h" +#include "mozilla/SVGContainerFrame.h" +#include "mozilla/gfx/2D.h" +#include "gfxPattern.h" +#include "gfxMatrix.h" + +class gfxContext; + +namespace mozilla { +class PresShell; +} // namespace mozilla + +nsIFrame* NS_NewSVGMaskFrame(mozilla::PresShell* aPresShell, + mozilla::ComputedStyle* aStyle); + +namespace mozilla { + +class SVGMaskFrame final : public SVGContainerFrame { + friend nsIFrame* ::NS_NewSVGMaskFrame(mozilla::PresShell* aPresShell, + ComputedStyle* aStyle); + + using Matrix = gfx::Matrix; + using SourceSurface = gfx::SourceSurface; + using imgDrawingParams = image::imgDrawingParams; + + protected: + explicit SVGMaskFrame(ComputedStyle* aStyle, nsPresContext* aPresContext) + : SVGContainerFrame(aStyle, aPresContext, kClassID), mInUse(false) { + AddStateBits(NS_FRAME_IS_NONDISPLAY); + } + + public: + NS_DECL_FRAMEARENA_HELPERS(SVGMaskFrame) + + struct MaskParams { + gfx::DrawTarget* dt; + nsIFrame* maskedFrame; + const gfxMatrix& toUserSpace; + float opacity; + StyleMaskMode maskMode; + imgDrawingParams& imgParams; + + explicit MaskParams(gfx::DrawTarget* aDt, nsIFrame* aMaskedFrame, + const gfxMatrix& aToUserSpace, float aOpacity, + StyleMaskMode aMaskMode, imgDrawingParams& aImgParams) + : dt(aDt), + maskedFrame(aMaskedFrame), + toUserSpace(aToUserSpace), + opacity(aOpacity), + maskMode(aMaskMode), + imgParams(aImgParams) {} + }; + + // SVGMaskFrame method: + + /** + * Generate a mask surface for the target frame. + * + * The return surface can be null, it's the caller's responsibility to + * null-check before dereferencing. + */ + already_AddRefed<SourceSurface> GetMaskForMaskedFrame(MaskParams& aParams); + + gfxRect GetMaskArea(nsIFrame* aMaskedFrame); + + nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute, + int32_t aModType) override; + +#ifdef DEBUG + void Init(nsIContent* aContent, nsContainerFrame* aParent, + nsIFrame* aPrevInFlow) override; +#endif + + void BuildDisplayList(nsDisplayListBuilder* aBuilder, + const nsDisplayListSet& aLists) override {} + +#ifdef DEBUG_FRAME_DUMP + nsresult GetFrameName(nsAString& aResult) const override { + return MakeFrameName(u"SVGMask"_ns, aResult); + } +#endif + + private: + /** + * If the mask element transforms its children due to + * maskContentUnits="objectBoundingBox" being set on it, this function + * returns the resulting transform. + */ + gfxMatrix GetMaskTransform(nsIFrame* aMaskedFrame); + + gfxMatrix mMatrixForChildren; + // recursion prevention flag + bool mInUse; + + // SVGContainerFrame methods: + gfxMatrix GetCanvasTM() override; +}; + +} // namespace mozilla + +#endif // LAYOUT_SVG_SVGMASKFRAME_H_ |