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