зеркало из https://github.com/mozilla/moz-skia.git
85 строки
2.3 KiB
C++
85 строки
2.3 KiB
C++
/*
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Copyright 2010 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef GrPath_DEFINED
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#define GrPath_DEFINED
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#include "GrPathSink.h"
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#include "GrPathIter.h"
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#include "GrTDArray.h"
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#include "GrPoint.h"
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class GrPath : public GrPathSink {
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public:
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GrPath();
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GrPath(const GrPath&);
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explicit GrPath(GrPathIter&);
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virtual ~GrPath();
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GrPathIter::ConvexHint getConvexHint() const { return fConvexHint; }
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void setConvexHint(GrPathIter::ConvexHint hint) { fConvexHint = hint; }
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void resetFromIter(GrPathIter*);
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// overrides from GrPathSink
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virtual void moveTo(GrScalar x, GrScalar y);
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virtual void lineTo(GrScalar x, GrScalar y);
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virtual void quadTo(GrScalar x0, GrScalar y0, GrScalar x1, GrScalar y1);
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virtual void cubicTo(GrScalar x0, GrScalar y0, GrScalar x1, GrScalar y1,
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GrScalar x2, GrScalar y2);
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virtual void close();
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class Iter : public GrPathIter {
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public:
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Iter(const GrPath& path);
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// overrides from GrPathIter
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virtual Command next(GrPoint points[]);
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virtual ConvexHint hint() const;
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virtual Command next();
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virtual void rewind();
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private:
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const GrPath& fPath;
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GrPoint fLastPt;
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int fVerbIndex;
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int fPtIndex;
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};
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private:
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enum Verb {
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kMove, kLine, kQuad, kCubic, kClose
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};
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GrTDArray<uint8_t> fVerbs;
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GrTDArray<GrPoint> fPts;
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GrPathIter::ConvexHint fConvexHint;
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// this ensures we have a moveTo at the start of each contour
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inline void ensureMoveTo();
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bool wasLastVerb(Verb verb) const {
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int count = fVerbs.count();
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return count > 0 && verb == fVerbs[count - 1];
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}
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friend class Iter;
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};
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#endif
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