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 "SkBlurMask.h" 10 #include "SkBlurMaskFilter.h" 11 12 namespace skiagm { 13 14 class BlursGM : public GM { 15 public: 16 BlursGM() { 17 this->setBGColor(0xFFDDDDDD); 18 } 19 20 protected: 21 virtual uint32_t onGetFlags() const SK_OVERRIDE { 22 return kSkipTiled_Flag; 23 } 24 25 virtual SkString onShortName() { 26 return SkString("blurs"); 27 } 28 29 virtual SkISize onISize() { 30 return SkISize::Make(700, 500); 31 } 32 33 virtual void onDraw(SkCanvas* canvas) { 34 SkBlurStyle NONE = SkBlurStyle(-999); 35 static const struct { 36 SkBlurStyle fStyle; 37 int fCx, fCy; 38 } gRecs[] = { 39 { NONE, 0, 0 }, 40 { kInner_SkBlurStyle, -1, 0 }, 41 { kNormal_SkBlurStyle, 0, 1 }, 42 { kSolid_SkBlurStyle, 0, -1 }, 43 { kOuter_SkBlurStyle, 1, 0 }, 44 }; 45 46 SkPaint paint; 47 paint.setAntiAlias(true); 48 sk_tool_utils::set_portable_typeface(&paint); 49 paint.setTextSize(SkIntToScalar(25)); 50 canvas->translate(SkIntToScalar(-40), SkIntToScalar(0)); 51 52 SkBlurMaskFilter::BlurFlags flags = SkBlurMaskFilter::kNone_BlurFlag; 53 for (int j = 0; j < 2; j++) { 54 canvas->save(); 55 paint.setColor(SK_ColorBLUE); 56 for (size_t i = 0; i < SK_ARRAY_COUNT(gRecs); i++) { 57 if (gRecs[i].fStyle != NONE) { 58 SkMaskFilter* mf = SkBlurMaskFilter::Create(gRecs[i].fStyle, 59 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(20)), 60 flags); 61 paint.setMaskFilter(mf)->unref(); 62 } else { 63 paint.setMaskFilter(NULL); 64 } 65 canvas->drawCircle(SkIntToScalar(200 + gRecs[i].fCx*100), 66 SkIntToScalar(200 + gRecs[i].fCy*100), 67 SkIntToScalar(50), 68 paint); 69 } 70 // draw text 71 { 72 SkMaskFilter* mf = SkBlurMaskFilter::Create(kNormal_SkBlurStyle, 73 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(4)), 74 flags); 75 paint.setMaskFilter(mf)->unref(); 76 SkScalar x = SkIntToScalar(70); 77 SkScalar y = SkIntToScalar(400); 78 paint.setColor(SK_ColorBLACK); 79 canvas->drawText("Hamburgefons Style", 18, x, y, paint); 80 canvas->drawText("Hamburgefons Style", 18, 81 x, y + SkIntToScalar(50), paint); 82 paint.setMaskFilter(NULL); 83 paint.setColor(SK_ColorWHITE); 84 x -= SkIntToScalar(2); 85 y -= SkIntToScalar(2); 86 canvas->drawText("Hamburgefons Style", 18, x, y, paint); 87 } 88 canvas->restore(); 89 flags = SkBlurMaskFilter::kHighQuality_BlurFlag; 90 canvas->translate(SkIntToScalar(350), SkIntToScalar(0)); 91 } 92 } 93 94 private: 95 typedef GM INHERITED; 96 }; 97 98 ////////////////////////////////////////////////////////////////////////////// 99 100 static GM* MyFactory(void*) { return new BlursGM; } 101 static GMRegistry reg(MyFactory); 102 103 } 104
