c75e2401a8
We need to discriminate between nodes whose bounds updates contribute to the dirty
region, and nodes whose bounds changes do not.
E.g. animated shape in a group: the animated shape node bounds should yield damage,
but the ancestor group bounds should not.
To accomplish this, we refine the invalidation state:
1) self invalidation == the node itself was invalidated, and its bounds updates
yield damage.
2) descendant invalidation == the node has some (self-)invalidated descendant,
but its own bounds are not contributing damage.
Also:
* hoist the bounding box invalidation logic into the base class (Node::revalidate)
and update to respect the states described above.
* remove (now-redundant) GeometryNode bbox logic.
* update revalidation methods to return the node bbox instead of void
TBR=
Change-Id: I8023d1793fb501c945a53f2dc2d2983e5b620ade
Reviewed-on: https://skia-review.googlesource.com/90581
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
44 lines
939 B
C++
44 lines
939 B
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 SkSGInvalidationController_DEFINED
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#define SkSGInvalidationController_DEFINED
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#include "SkMatrix.h"
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#include "SkTDArray.h"
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#include "SkTypes.h"
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struct SkRect;
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namespace sksg {
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/**
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* Receiver for invalidation events.
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*
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* Tracks dirty regions for repaint.
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*/
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class InvalidationController : public SkNoncopyable {
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public:
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InvalidationController();
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void inval(const SkRect&, const SkMatrix& ctm = SkMatrix::I());
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const SkRect& bounds() const { return fBounds; }
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const SkRect* begin() const { return fRects.begin(); }
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const SkRect* end() const { return fRects.end(); }
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private:
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SkTDArray<SkRect> fRects;
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SkRect fBounds;
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typedef SkNoncopyable INHERITED;
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};
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} // namespace sksg
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#endif // SkSGInvalidationController_DEFINED
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