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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/base/SkTo.h"
#ifdef SK_DEBUG
extern bool gDebugStrokerErrorSet;
extern SkScalar gDebugStrokerError;
extern int gMaxRecursion[];
/** \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 {
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,
SkPathDirection = SkPathDirection::kCW) const;
void strokePath(const SkPath& path, SkPath*) const;
SkScalar fWidth, fMiterLimit;
SkScalar fResScale;
uint8_t fCap, fJoin;
bool fDoFill;
friend class SkPaint;