eb46bd892d
Introduce RenderNode::nodeAt(const SkPoint&) as the entry point for the hit-testing API. This is backed by a onNodeAt() virtual, which gets dispatched throughout the render DAG, and normally stops at the first leaf Draw node in encounters. To support the implementation, introduce a GeometryNode::contains(const SkPoint&) API. This is backed by a onContains() virtual, overridden in each concrete geometry class. Expose nodeAt() on sksg::Scene, and add some basic unit tests. Change-Id: I0c8abd9d1e51ecf2d8b4dd699f325cd636e21084 Reviewed-on: https://skia-review.googlesource.com/c/191296 Commit-Queue: Florin Malita <fmalita@chromium.org> Reviewed-by: Mike Reed <reed@google.com>
70 lines
1.4 KiB
C++
70 lines
1.4 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 SkSGMerge_DEFINED
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#define SkSGMerge_DEFINED
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#include "SkSGGeometryNode.h"
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#include "SkPath.h"
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#include <vector>
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class SkCanvas;
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class SkPaint;
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namespace sksg {
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/**
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* Concrete Geometry node, combining other geometries based on Mode.
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*/
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class Merge final : public GeometryNode {
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public:
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enum class Mode {
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// Append path mode.
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kMerge,
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// SkPathOp ops.
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kUnion,
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kIntersect,
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kDifference,
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kReverseDifference,
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kXOR,
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};
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struct Rec {
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sk_sp<GeometryNode> fGeo;
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Mode fMode;
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};
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static sk_sp<Merge> Make(std::vector<Rec>&& recs) {
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return sk_sp<Merge>(new Merge(std::move(recs)));
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}
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~Merge() override;
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protected:
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void onClip(SkCanvas*, bool antiAlias) const override;
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void onDraw(SkCanvas*, const SkPaint&) const override;
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bool onContains(const SkPoint&) const override;
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SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
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SkPath onAsPath() const override;
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private:
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Merge(std::vector<Rec>&& recs);
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const std::vector<Rec> fRecs;
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SkPath fMerged;
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using INHERITED = GeometryNode;
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};
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} // namespace sksg
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#endif // SkSGMerge_DEFINED
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