1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8 #include "gm.h"
9 #include "SkBlurMaskFilter.h"
10
11 namespace skiagm {
12
13 class BlursGM : public GM {
14 public:
BlursGM()15 BlursGM() {
16 this->setBGColor(0xFFDDDDDD);
17 }
18
19 protected:
onShortName()20 virtual SkString onShortName() {
21 return SkString("blurs");
22 }
23
onISize()24 virtual SkISize onISize() {
25 return make_isize(700, 500);
26 }
27
onDraw(SkCanvas * canvas)28 virtual void onDraw(SkCanvas* canvas) {
29 SkBlurMaskFilter::BlurStyle NONE = SkBlurMaskFilter::BlurStyle(-999);
30 static const struct {
31 SkBlurMaskFilter::BlurStyle fStyle;
32 int fCx, fCy;
33 } gRecs[] = {
34 { NONE, 0, 0 },
35 { SkBlurMaskFilter::kInner_BlurStyle, -1, 0 },
36 { SkBlurMaskFilter::kNormal_BlurStyle, 0, 1 },
37 { SkBlurMaskFilter::kSolid_BlurStyle, 0, -1 },
38 { SkBlurMaskFilter::kOuter_BlurStyle, 1, 0 },
39 };
40
41 SkPaint paint;
42 paint.setAntiAlias(true);
43 paint.setTextSize(SkIntToScalar(25));
44 canvas->translate(SkIntToScalar(-40), SkIntToScalar(0));
45
46 SkBlurMaskFilter::BlurFlags flags = SkBlurMaskFilter::kNone_BlurFlag;
47 for (int j = 0; j < 2; j++) {
48 canvas->save();
49 paint.setColor(SK_ColorBLUE);
50 for (size_t i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
51 if (gRecs[i].fStyle != NONE) {
52 SkMaskFilter* mf = SkBlurMaskFilter::Create(
53 SkIntToScalar(20), gRecs[i].fStyle, flags
54 );
55 paint.setMaskFilter(mf)->unref();
56 } else {
57 paint.setMaskFilter(NULL);
58 }
59 canvas->drawCircle(SkIntToScalar(200 + gRecs[i].fCx*100)
60 , SkIntToScalar(200 + gRecs[i].fCy*100)
61 , SkIntToScalar(50)
62 , paint);
63 }
64 // draw text
65 {
66 SkMaskFilter* mf = SkBlurMaskFilter::Create(
67 SkIntToScalar(4)
68 , SkBlurMaskFilter::kNormal_BlurStyle
69 , flags
70 );
71 paint.setMaskFilter(mf)->unref();
72 SkScalar x = SkIntToScalar(70);
73 SkScalar y = SkIntToScalar(400);
74 paint.setColor(SK_ColorBLACK);
75 canvas->drawText("Hamburgefons Style", 18, x, y, paint);
76 canvas->drawText("Hamburgefons Style", 18
77 , x, y + SkIntToScalar(50), paint);
78 paint.setMaskFilter(NULL);
79 paint.setColor(SK_ColorWHITE);
80 x -= SkIntToScalar(2);
81 y -= SkIntToScalar(2);
82 canvas->drawText("Hamburgefons Style", 18, x, y, paint);
83 }
84 canvas->restore();
85 flags = SkBlurMaskFilter::kHighQuality_BlurFlag;
86 canvas->translate(SkIntToScalar(350), SkIntToScalar(0));
87 }
88 }
89
90 private:
91 typedef GM INHERITED;
92 };
93
94 //////////////////////////////////////////////////////////////////////////////
95
MyFactory(void *)96 static GM* MyFactory(void*) { return new BlursGM; }
97 static GMRegistry reg(MyFactory);
98
99 }
100
101