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comparison: gfx/skia/trunk/src/core/SkBBoxRecord.h
gfx/skia/trunk/src/core/SkBBoxRecord.h
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
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| -1:000000000000 | 0:9e8fb475670d |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2012 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 | |
| 9 #ifndef SkBBoxRecord_DEFINED | |
| 10 #define SkBBoxRecord_DEFINED | |
| 11 | |
| 12 #include "SkPictureRecord.h" | |
| 13 | |
| 14 /** | |
| 15 * This is an abstract SkPictureRecord subclass that intercepts draw calls and computes an | |
| 16 * axis-aligned bounding box for each draw that it sees, subclasses implement handleBBox() | |
| 17 * which will be called every time we get a new bounding box. | |
| 18 */ | |
| 19 class SkBBoxRecord : public SkPictureRecord { | |
| 20 public: | |
| 21 | |
| 22 SkBBoxRecord(const SkISize& size, uint32_t recordFlags) : INHERITED(size, recordFlags) {} | |
| 23 virtual ~SkBBoxRecord() { } | |
| 24 | |
| 25 /** | |
| 26 * This is called each time we get a bounding box, it will be axis-aligned, | |
| 27 * in device coordinates, and expanded to include stroking, shadows, etc. | |
| 28 */ | |
| 29 virtual void handleBBox(const SkRect& bbox) = 0; | |
| 30 | |
| 31 virtual void drawOval(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE; | |
| 32 virtual void drawRRect(const SkRRect& rrect, const SkPaint& paint) SK_OVERRIDE; | |
| 33 virtual void drawRect(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE; | |
| 34 virtual void drawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE; | |
| 35 virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[], | |
| 36 const SkPaint& paint) SK_OVERRIDE; | |
| 37 virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE; | |
| 38 virtual void clear(SkColor) SK_OVERRIDE; | |
| 39 virtual void drawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, | |
| 40 const SkPaint& paint) SK_OVERRIDE; | |
| 41 virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top, | |
| 42 const SkPaint* paint = NULL) SK_OVERRIDE; | |
| 43 virtual void drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src, | |
| 44 const SkRect& dst, const SkPaint* paint, | |
| 45 DrawBitmapRectFlags flags) SK_OVERRIDE; | |
| 46 virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& mat, | |
| 47 const SkPaint* paint) SK_OVERRIDE; | |
| 48 virtual void drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, | |
| 49 const SkRect& dst, const SkPaint* paint) SK_OVERRIDE; | |
| 50 virtual void drawPosText(const void* text, size_t byteLength, | |
| 51 const SkPoint pos[], const SkPaint& paint) SK_OVERRIDE; | |
| 52 virtual void drawPosTextH(const void* text, size_t byteLength, | |
| 53 const SkScalar xpos[], SkScalar constY, | |
| 54 const SkPaint& paint) SK_OVERRIDE; | |
| 55 virtual void drawSprite(const SkBitmap& bitmap, int left, int top, | |
| 56 const SkPaint* paint) SK_OVERRIDE; | |
| 57 virtual void drawTextOnPath(const void* text, size_t byteLength, | |
| 58 const SkPath& path, const SkMatrix* matrix, | |
| 59 const SkPaint& paint) SK_OVERRIDE; | |
| 60 virtual void drawVertices(VertexMode mode, int vertexCount, | |
| 61 const SkPoint vertices[], const SkPoint texs[], | |
| 62 const SkColor colors[], SkXfermode* xfer, | |
| 63 const uint16_t indices[], int indexCount, | |
| 64 const SkPaint& paint) SK_OVERRIDE; | |
| 65 virtual void drawPicture(SkPicture& picture) SK_OVERRIDE; | |
| 66 | |
| 67 protected: | |
| 68 virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK_OVERRIDE; | |
| 69 | |
| 70 private: | |
| 71 /** | |
| 72 * Takes a bounding box in current canvas view space, accounts for stroking and effects, and | |
| 73 * computes an axis-aligned bounding box in device coordinates, then passes it to handleBBox() | |
| 74 * returns false if the draw is completely clipped out, and may safely be ignored. | |
| 75 **/ | |
| 76 bool transformBounds(const SkRect& bounds, const SkPaint* paint); | |
| 77 | |
| 78 typedef SkPictureRecord INHERITED; | |
| 79 }; | |
| 80 | |
| 81 #endif |
