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>
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/*
|
|
* Copyright 2018 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef SkSGClipEffect_DEFINED
|
|
#define SkSGClipEffect_DEFINED
|
|
|
|
#include "SkSGEffectNode.h"
|
|
|
|
namespace sksg {
|
|
|
|
class GeometryNode;
|
|
|
|
/**
|
|
* Concrete Effect node, applying a clip to its descendants.
|
|
*
|
|
*/
|
|
class ClipEffect final : public EffectNode {
|
|
public:
|
|
static sk_sp<ClipEffect> Make(sk_sp<RenderNode> child, sk_sp<GeometryNode> clip,
|
|
bool aa = false) {
|
|
return (child && clip)
|
|
? sk_sp<ClipEffect>(new ClipEffect(std::move(child), std::move(clip), aa))
|
|
: nullptr;
|
|
}
|
|
|
|
~ClipEffect() override;
|
|
|
|
protected:
|
|
ClipEffect(sk_sp<RenderNode>, sk_sp<GeometryNode>, bool aa);
|
|
|
|
void onRender(SkCanvas*, const RenderContext*) const override;
|
|
const RenderNode* onNodeAt(const SkPoint&) const override;
|
|
|
|
SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
|
|
|
|
private:
|
|
const sk_sp<GeometryNode> fClipNode;
|
|
const bool fAntiAlias;
|
|
|
|
bool fNoop = false;
|
|
|
|
typedef EffectNode INHERITED;
|
|
};
|
|
|
|
} // namespace sksg
|
|
|
|
#endif // SkSGClipEffect_DEFINED
|