/*
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* Copyright 2006 The Android Open Source Project
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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 SkStroke_DEFINED
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#define SkStroke_DEFINED
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#include "SkPaint.h"
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#include "SkPath.h"
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#include "SkPoint.h"
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#include "SkStrokerPriv.h"
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#include "SkTo.h"
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#ifdef SK_DEBUG
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extern bool gDebugStrokerErrorSet;
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extern SkScalar gDebugStrokerError;
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extern int gMaxRecursion[];
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#endif
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/** \class SkStroke
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SkStroke is the utility class that constructs paths by stroking
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geometries (lines, rects, ovals, roundrects, paths). This is
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invoked when a geometry or text is drawn in a canvas with the
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kStroke_Mask bit set in the paint.
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*/
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class SkStroke {
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public:
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SkStroke();
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SkStroke(const SkPaint&);
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SkStroke(const SkPaint&, SkScalar width); // width overrides paint.getStrokeWidth()
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SkPaint::Cap getCap() const { return (SkPaint::Cap)fCap; }
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void setCap(SkPaint::Cap);
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SkPaint::Join getJoin() const { return (SkPaint::Join)fJoin; }
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void setJoin(SkPaint::Join);
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void setMiterLimit(SkScalar);
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void setWidth(SkScalar);
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bool getDoFill() const { return SkToBool(fDoFill); }
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void setDoFill(bool doFill) { fDoFill = SkToU8(doFill); }
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/**
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* ResScale is the "intended" resolution for the output.
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* Default is 1.0.
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* Larger values (res > 1) indicate that the result should be more precise, since it will
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* be zoomed up, and small errors will be magnified.
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* Smaller values (0 < res < 1) indicate that the result can be less precise, since it will
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* be zoomed down, and small errors may be invisible.
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*/
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SkScalar getResScale() const { return fResScale; }
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void setResScale(SkScalar rs) {
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SkASSERT(rs > 0 && SkScalarIsFinite(rs));
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fResScale = rs;
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}
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/**
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* Stroke the specified rect, winding it in the specified direction..
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*/
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void strokeRect(const SkRect& rect, SkPath* result,
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SkPath::Direction = SkPath::kCW_Direction) const;
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void strokePath(const SkPath& path, SkPath*) const;
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////////////////////////////////////////////////////////////////
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private:
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SkScalar fWidth, fMiterLimit;
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SkScalar fResScale;
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uint8_t fCap, fJoin;
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bool fDoFill;
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friend class SkPaint;
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};
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#endif
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