drawregionmodes.cpp 2.8 KB

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  1. /*
  2. * Copyright 2016 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. #include "gm/gm.h"
  8. #include "include/core/SkBlurTypes.h"
  9. #include "include/core/SkCanvas.h"
  10. #include "include/core/SkColor.h"
  11. #include "include/core/SkImageFilter.h"
  12. #include "include/core/SkMaskFilter.h"
  13. #include "include/core/SkPaint.h"
  14. #include "include/core/SkPathEffect.h"
  15. #include "include/core/SkPoint.h"
  16. #include "include/core/SkRegion.h"
  17. #include "include/core/SkShader.h"
  18. #include "include/core/SkSize.h"
  19. #include "include/core/SkString.h"
  20. #include "include/core/SkTileMode.h"
  21. #include "include/effects/SkBlurImageFilter.h"
  22. #include "include/effects/SkDashPathEffect.h"
  23. #include "include/effects/SkGradientShader.h"
  24. class DrawRegionModesGM : public skiagm::GM {
  25. public:
  26. DrawRegionModesGM() {}
  27. protected:
  28. SkString onShortName() override {
  29. return SkString("drawregionmodes");
  30. }
  31. SkISize onISize() override {
  32. return SkISize::Make(375, 500);
  33. }
  34. void onOnceBeforeDraw() override {
  35. fRegion.op( 50, 50, 100, 100, SkRegion::kUnion_Op);
  36. fRegion.op( 50, 100, 150, 150, SkRegion::kUnion_Op);
  37. }
  38. void onDraw(SkCanvas* canvas) override {
  39. canvas->clear(SK_ColorGREEN);
  40. SkPaint paint;
  41. paint.setStyle(SkPaint::kFill_Style);
  42. paint.setColor(SK_ColorRED);
  43. paint.setAntiAlias(true);
  44. canvas->save();
  45. canvas->translate(-50.0f, 75.0f);
  46. canvas->rotate(-45.0f);
  47. canvas->drawRegion(fRegion, paint);
  48. canvas->translate(125.0f, 125.0f);
  49. paint.setImageFilter(SkBlurImageFilter::Make(5.0f, 5.0f, nullptr, nullptr));
  50. canvas->drawRegion(fRegion, paint);
  51. canvas->translate(-125.0f, 125.0f);
  52. paint.setImageFilter(nullptr);
  53. paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 5.0f));
  54. canvas->drawRegion(fRegion, paint);
  55. canvas->translate(-125.0f, -125.0f);
  56. paint.setMaskFilter(nullptr);
  57. paint.setStyle(SkPaint::kStroke_Style);
  58. float intervals[] = { 5.0f, 5.0f };
  59. paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 2.5f));
  60. canvas->drawRegion(fRegion, paint);
  61. canvas->restore();
  62. canvas->translate(100, 325);
  63. paint.setPathEffect(nullptr);
  64. paint.setStyle(SkPaint::kFill_Style);
  65. SkPoint points[] = { SkPoint::Make(50.0f, 50.0f), SkPoint::Make(150.0f, 150.0f) };
  66. SkColor colors[] = { SK_ColorBLUE, SK_ColorYELLOW };
  67. paint.setShader(SkGradientShader::MakeLinear(points, colors, nullptr, 2,
  68. SkTileMode::kClamp));
  69. canvas->drawRegion(fRegion, paint);
  70. }
  71. private:
  72. SkRegion fRegion;
  73. typedef skiagm::GM INHERITED;
  74. };
  75. DEF_GM( return new DrawRegionModesGM; )