blob: fc59f52ec805c0dd5f730f7a9e5fbf02fa0c737e [file] [log] [blame]
* Copyright 2011 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkDrawProcs_DEFINED
#define SkDrawProcs_DEFINED
#include "include/core/SkPaint.h"
#include "include/core/SkScalar.h"
class SkMatrix;
bool SkDrawTreatAAStrokeAsHairline(SkScalar strokeWidth, const SkMatrix&,
SkScalar* coverage);
* If the current paint is set to stroke and the stroke-width when applied to
* the matrix is <= 1.0, then this returns true, and sets coverage (simulating
* a stroke by drawing a hairline with partial coverage). If any of these
* conditions are false, then this returns false and coverage is ignored.
inline bool SkDrawTreatAsHairline(const SkPaint& paint, const SkMatrix& matrix,
SkScalar* coverage) {
if (SkPaint::kStroke_Style != paint.getStyle()) {
return false;
SkScalar strokeWidth = paint.getStrokeWidth();
if (0 == strokeWidth) {
*coverage = SK_Scalar1;
return true;
if (!paint.isAntiAlias()) {
return false;
return SkDrawTreatAAStrokeAsHairline(strokeWidth, matrix, coverage);