118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
/*
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* Copyright 2012 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 SkStrokeRec_DEFINED
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#define SkStrokeRec_DEFINED
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#include "SkPaint.h"
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class SkPath;
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class SkStrokeRec {
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public:
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enum InitStyle {
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kHairline_InitStyle,
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kFill_InitStyle
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};
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SkStrokeRec(InitStyle style);
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SkStrokeRec(const SkStrokeRec&);
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SkStrokeRec(const SkPaint&, SkPaint::Style, SkScalar resScale = 1);
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explicit SkStrokeRec(const SkPaint&, SkScalar resScale = 1);
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enum Style {
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kHairline_Style,
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kFill_Style,
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kStroke_Style,
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kStrokeAndFill_Style
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};
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enum {
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kStyleCount = kStrokeAndFill_Style + 1
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};
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Style getStyle() const;
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SkScalar getWidth() const { return fWidth; }
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SkScalar getMiter() const { return fMiterLimit; }
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SkPaint::Cap getCap() const { return fCap; }
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SkPaint::Join getJoin() const { return fJoin; }
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bool isHairlineStyle() const {
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return kHairline_Style == this->getStyle();
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}
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bool isFillStyle() const {
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return kFill_Style == this->getStyle();
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}
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void setFillStyle();
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void setHairlineStyle();
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/**
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* Specify the strokewidth, and optionally if you want stroke + fill.
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* Note, if width==0, then this request is taken to mean:
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* strokeAndFill==true -> new style will be Fill
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* strokeAndFill==false -> new style will be Hairline
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*/
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void setStrokeStyle(SkScalar width, bool strokeAndFill = false);
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void setStrokeParams(SkPaint::Cap cap, SkPaint::Join join, SkScalar miterLimit) {
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fCap = cap;
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fJoin = join;
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fMiterLimit = miterLimit;
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}
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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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* Returns true if this specifes any thick stroking, i.e. applyToPath()
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* will return true.
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*/
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bool needToApply() const {
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Style style = this->getStyle();
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return (kStroke_Style == style) || (kStrokeAndFill_Style == style);
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}
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/**
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* Apply these stroke parameters to the src path, returning the result
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* in dst.
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*
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* If there was no change (i.e. style == hairline or fill) this returns
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* false and dst is unchanged. Otherwise returns true and the result is
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* stored in dst.
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*
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* src and dst may be the same path.
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*/
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bool applyToPath(SkPath* dst, const SkPath& src) const;
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/**
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* Apply these stroke parameters to a paint.
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*/
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void applyToPaint(SkPaint* paint) const;
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bool operator==(const SkStrokeRec& other) const {
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return fWidth == other.fWidth &&
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fMiterLimit == other.fMiterLimit &&
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fCap == other.fCap &&
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fJoin == other.fJoin &&
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fStrokeAndFill == other.fStrokeAndFill;
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}
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private:
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void init(const SkPaint&, SkPaint::Style, SkScalar resScale);
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SkScalar fResScale;
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SkScalar fWidth;
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SkScalar fMiterLimit;
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SkPaint::Cap fCap;
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SkPaint::Join fJoin;
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bool fStrokeAndFill;
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};
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#endif
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