SkShadowUtils.cpp revision 43475ad9dc43c4cbe13d924d8caff8916dcbbc06 
1/*
2* Copyright 2017 Google Inc.
3*
4* Use of this source code is governed by a BSD-style license that can be
5* found in the LICENSE file.
6*/
7
8#include "SkShadowUtils.h"
9#include "SkCanvas.h"
10#include "../effects/SkShadowMaskFilter.h"
11
12// Draw an offset spot shadow and outlining ambient shadow for the given path.
13void SkShadowUtils::DrawShadow(SkCanvas* canvas, const SkPath& path, SkScalar occluderHeight,
14                               const SkPoint3& lightPos, SkScalar lightRadius,
15                               SkScalar ambientAlpha, SkScalar spotAlpha, SkColor color,
16                               uint32_t flags) {
17    SkPaint newPaint;
18    newPaint.setColor(color);
19    newPaint.setMaskFilter(SkShadowMaskFilter::Make(occluderHeight, lightPos, lightRadius,
20                                                    ambientAlpha, spotAlpha, flags));
21
22    canvas->drawPath(path, newPaint);
23}
24