c0132ffa64
- plumb a RenderContext RenderNode::render() argument to track pending
opacity
- defer opacity application until we can determine whether a layer is
required (group with multiple children) or the opacity can be pushed
onto the draw paint (for single/atomic draws)
Bug: skia:
Change-Id: I962ba08bad780395d5d738307bde986e9efa502b
Reviewed-on: https://skia-review.googlesource.com/146445
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
/*
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* Copyright 2017 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 SkSGTransform_DEFINED
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#define SkSGTransform_DEFINED
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#include "SkSGEffectNode.h"
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#include "SkMatrix.h"
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namespace sksg {
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/**
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* Concrete node, wrapping an SkMatrix, with an optional parent Matrix (to allow chaining):
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*
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* M' = parent x M
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*/
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class Matrix : public Node {
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public:
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static sk_sp<Matrix> Make(const SkMatrix& m, sk_sp<Matrix> parent = nullptr) {
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return sk_sp<Matrix>(new Matrix(m, std::move(parent)));
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}
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~Matrix() override;
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SG_ATTRIBUTE(Matrix, SkMatrix, fLocalMatrix)
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const SkMatrix& getTotalMatrix() const { return fTotalMatrix; }
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protected:
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Matrix(const SkMatrix&, sk_sp<Matrix>);
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SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
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private:
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sk_sp<Matrix> fParent;
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SkMatrix fLocalMatrix,
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fTotalMatrix; // cached during revalidation
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typedef Node INHERITED;
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};
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/**
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* Concrete Effect node, binding a Matrix to a RenderNode.
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*/
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class Transform final : public EffectNode {
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public:
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static sk_sp<Transform> Make(sk_sp<RenderNode> child, sk_sp<Matrix> matrix) {
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return child && matrix
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? sk_sp<Transform>(new Transform(std::move(child), std::move(matrix)))
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: nullptr;
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}
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static sk_sp<Transform> Make(sk_sp<RenderNode> child, const SkMatrix& m) {
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return Make(std::move(child), Matrix::Make(m));
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}
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~Transform() override;
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const sk_sp<Matrix>& getMatrix() const { return fMatrix; }
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protected:
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void onRender(SkCanvas*, const RenderContext*) const override;
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SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
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private:
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Transform(sk_sp<RenderNode>, sk_sp<Matrix>);
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const sk_sp<Matrix> fMatrix;
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typedef EffectNode INHERITED;
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};
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} // namespace sksg
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#endif // SkSGTransform_DEFINED
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