skia2/experimental/svg/model/SkSVGGradient.h
Tyler Denniston 308c07212a [svg] Implement currentColor for gradient stops
Required introducing a new type for stop-color attribute. A test that
exercises this is 'color-prop-01-b'.

Note that stop-color should be an inherited presentation attribute, but
that is not addressed in this CL.

Change-Id: I65b99bfc989f1d4b5a0746de31011b0e72eb6c59
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/282592
Commit-Queue: Tyler Denniston <tdenniston@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2020-04-14 16:20:44 +00:00

52 lines
1.7 KiB
C++

/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkSVGGradient_DEFINED
#define SkSVGGradient_DEFINED
#include "experimental/svg/model/SkSVGHiddenContainer.h"
#include "experimental/svg/model/SkSVGTypes.h"
#include "include/core/SkShader.h"
class SkMatrix;
class SkSVGRenderContext;
class SkSVGStop;
class SkSVGGradient : public SkSVGHiddenContainer {
public:
~SkSVGGradient() override = default;
void setHref(const SkSVGStringType&);
void setGradientTransform(const SkSVGTransformType&);
void setSpreadMethod(const SkSVGSpreadMethod&);
protected:
explicit SkSVGGradient(SkSVGTag t) : INHERITED(t) {}
void onSetAttribute(SkSVGAttribute, const SkSVGValue&) override;
bool onAsPaint(const SkSVGRenderContext&, SkPaint*) const final;
virtual sk_sp<SkShader> onMakeShader(const SkSVGRenderContext&,
const SkColor*, const SkScalar*, int count,
SkTileMode, const SkMatrix& localMatrix) const = 0;
private:
using StopPositionArray = SkSTArray<2, SkScalar, true>;
using StopColorArray = SkSTArray<2, SkColor, true>;
void collectColorStops(const SkSVGRenderContext&, StopPositionArray*, StopColorArray*) const;
SkColor resolveStopColor(const SkSVGRenderContext&, const SkSVGStop&) const;
SkSVGStringType fHref;
SkSVGTransformType fGradientTransform = SkSVGTransformType(SkMatrix::I());
SkSVGSpreadMethod fSpreadMethod = SkSVGSpreadMethod(SkSVGSpreadMethod::Type::kPad);
typedef SkSVGHiddenContainer INHERITED;
};
#endif // SkSVGGradient_DEFINED