95b2cf912c
Also cleaned up the IsFilterEffect() predicate a bit. Bug: skia:10841 Change-Id: I8ef827df42d5d60cf06e74870191de7f27612376 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/404218 Commit-Queue: Tyler Denniston <tdenniston@google.com> Reviewed-by: Florin Malita <fmalita@chromium.org>
86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
/*
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* Copyright 2020 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkSVGFe_DEFINED
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#define SkSVGFe_DEFINED
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#include <vector>
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#include "modules/svg/include/SkSVGHiddenContainer.h"
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class SkImageFilter;
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class SkSVGFilterContext;
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class SkSVGFe : public SkSVGHiddenContainer {
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public:
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static bool IsFilterEffect(const sk_sp<SkSVGNode>& node) {
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switch (node->tag()) {
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case SkSVGTag::kFeBlend:
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case SkSVGTag::kFeColorMatrix:
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case SkSVGTag::kFeComposite:
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case SkSVGTag::kFeDiffuseLighting:
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case SkSVGTag::kFeDisplacementMap:
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case SkSVGTag::kFeFlood:
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case SkSVGTag::kFeGaussianBlur:
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case SkSVGTag::kFeImage:
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case SkSVGTag::kFeMorphology:
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case SkSVGTag::kFeOffset:
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case SkSVGTag::kFeSpecularLighting:
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case SkSVGTag::kFeTurbulence:
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return true;
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default:
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return false;
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}
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}
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sk_sp<SkImageFilter> makeImageFilter(const SkSVGRenderContext& ctx,
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const SkSVGFilterContext& fctx) const;
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// https://www.w3.org/TR/SVG11/filters.html#FilterPrimitiveSubRegion
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SkRect resolveFilterSubregion(const SkSVGRenderContext&, const SkSVGFilterContext&) const;
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/**
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* Resolves the colorspace within which this filter effect should be applied.
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* Spec: https://www.w3.org/TR/SVG11/painting.html#ColorInterpolationProperties
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* 'color-interpolation-filters' property.
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*/
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virtual SkSVGColorspace resolveColorspace(const SkSVGRenderContext&,
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const SkSVGFilterContext&) const;
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/** Propagates any inherited presentation attributes in the given context. */
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void applyProperties(SkSVGRenderContext*) const;
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SVG_ATTR(In, SkSVGFeInputType, SkSVGFeInputType())
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SVG_ATTR(Result, SkSVGStringType, SkSVGStringType())
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SVG_OPTIONAL_ATTR(X, SkSVGLength)
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SVG_OPTIONAL_ATTR(Y, SkSVGLength)
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SVG_OPTIONAL_ATTR(Width, SkSVGLength)
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SVG_OPTIONAL_ATTR(Height, SkSVGLength)
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protected:
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explicit SkSVGFe(SkSVGTag t) : INHERITED(t) {}
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virtual sk_sp<SkImageFilter> onMakeImageFilter(const SkSVGRenderContext&,
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const SkSVGFilterContext&) const = 0;
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virtual std::vector<SkSVGFeInputType> getInputs() const = 0;
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bool parseAndSetAttribute(const char*, const char*) override;
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private:
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/**
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* Resolves the rect specified by the x, y, width and height attributes (if specified) on this
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* filter effect. These attributes are resolved according to the given length context and
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* the value of 'primitiveUnits' on the parent <filter> element.
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*/
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SkRect resolveBoundaries(const SkSVGRenderContext&, const SkSVGFilterContext&) const;
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using INHERITED = SkSVGHiddenContainer;
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};
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#endif // SkSVGFe_DEFINED
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