experimental/PdfViewer/SkNulCanvas.h - Issue 1266093003: Remove experimental/PdfViewer

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Issue 1266093003: Remove experimental/PdfViewer (Closed) Base URL: https://skia.googlesource.com/skia.git@master

Patch Set: 2015-08-03 (Monday) 10:43:56 EDT Created 5 years, 4 months ago

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1 /*

2 * Copyright 2013 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 #ifndef SkNulCanvas_DEFINED

9 #define SkNulCanvas_DEFINED

10

11 #include "SkCanvas.h"

12

13 /** \class SkNulCanvas

14 *

15 * Nul Canvas is a canvas that does nothing. It is used to measure the perf of just parsing

16 * a pdf, without actually rendering anything.

17 *

18 */

19 class SK_API SkNulCanvas : public SkCanvas {

20 public:

21 SkNulCanvas() {}

22 explicit SkNulCanvas(SkBaseDevice* device) : SkCanvas(device) {}

23

24 explicit SkNulCanvas(const SkBitmap& bitmap) : SkCanvas(bitmap) {}

25 virtual ~SkNulCanvas() {}

26

27 SkDrawFilter* setDrawFilter(SkDrawFilter* filter) override {return NULL;}

28

29 bool isClipEmpty() const override { return false; }

30 bool getClipBounds(SkRect* bounds) const override {

31 if (NULL != bounds) {

32 bounds->setXYWH(0, 0,

33 SkIntToScalar(this->imageInfo().width()),

34 SkIntToScalar(this->imageInfo().height()));

35 }

36 return true;

37 }

38 bool getClipDeviceBounds(SkIRect* bounds) const override {

39 if (NULL != bounds) {

40 bounds->setLargest();

41 }

42 return true;

43 }

44

45 protected:

46 virtual SkCanvas* canvasForDrawIter() {return NULL;}

47 virtual SkBaseDevice* setDevice(SkBaseDevice* device) {return NULL;}

48

49 virtual SaveLayerStrategy willSaveLayer(const SkRect* bounds, const SkPaint* paint,

50 SaveFlags flags) override {

51 this->INHERITED::willSaveLayer(bounds, paint, flags);

52 return kNoLayer_SaveLayerStrategy;

53 }

54

55 virtual void onDrawText(const void* text, size_t byteLength, SkScalar x,

56 SkScalar y, const SkPaint& paint) override {}

57 virtual void onDrawPosText(const void* text, size_t byteLength,

58 const SkPoint pos[], const SkPaint& paint) override {}

59 virtual void onDrawPosTextH(const void* text, size_t byteLength,

60 const SkScalar xpos[], SkScalar constY,

61 const SkPaint& paint) override {}

62 virtual void onDrawTextOnPath(const void* text, size_t byteLength,

63 const SkPath& path, const SkMatrix* matrix,

64 const SkPaint& paint) override {}

65

66 void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override {}

67 void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override {}

68 void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override {}

69 void onClipRegion(const SkRegion&, SkRegion::Op) override {}

70

71 void onDrawPicture(const SkPicture, const SkMatrix, const SkPaint*) overri de {}

72

73 void onDrawPaint(const SkPaint& paint) override {}

74 void onDrawPoints(PointMode mode, size_t count, const SkPoint pts[],

75 const SkPaint& paint) override {}

76 void onDrawRect(const SkRect& rect, const SkPaint& paint) override {}

77 void onDrawOval(const SkRect& oval, const SkPaint&) override {}

78 void onDrawRRect(const SkRRect& rrect, const SkPaint& paint) override {}

79 void onDrawPath(const SkPath& path, const SkPaint& paint) override {}

80 void onDrawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,

81 const SkPaint* paint = NULL) override {}

82 void onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src,

83 const SkRect& dst,

84 const SkPaint* paint,

85 SK_VIRTUAL_CONSTRAINT_TYPE) override {}

86 void onDrawImage(const SkImage, SkScalar left, SkScalar top, const SkPaint ) override {}

87 void onDrawImageRect(const SkImage, const SkRect, const SkRect&, const SkP aint*

88 SRC_RECT_CONSTRAINT_PARAM(constraint)) override {}

89 void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,

90 const SkRect& dst, const SkPaint* paint = NULL) overri de {}

91 void onDrawSprite(const SkBitmap& bitmap, int left, int top,

92 const SkPaint* paint = NULL) override {}

93 void onDrawVertices(VertexMode vmode, int vertexCount,

94 const SkPoint vertices[], const SkPoint texs[],

95 const SkColor colors[], SkXfermode* xmode,

96 const uint16_t indices[], int indexCount,

97 const SkPaint& paint) override {}

98

99

100 private:

101 typedef SkCanvas INHERITED;

102 };

103

104 #endif // SkNulCanvas_DEFINED

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