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Diffstat (limited to 'experimental/sksg/effects/SkSGClipEffect.h')
-rw-r--r-- | experimental/sksg/effects/SkSGClipEffect.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/experimental/sksg/effects/SkSGClipEffect.h b/experimental/sksg/effects/SkSGClipEffect.h new file mode 100644 index 0000000000..674edb2b5c --- /dev/null +++ b/experimental/sksg/effects/SkSGClipEffect.h @@ -0,0 +1,50 @@ +/* + * 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 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 |