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| 1 /* | |
| 2 * Copyright 2012 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 SkTileGridPicture_DEFINED | |
| 9 #define SkTileGridPicture_DEFINED | |
| 10 | |
| 11 #ifdef SK_SUPPORT_LEGACY_PICTURE_HEADERS | |
| 12 #include "SkBBHFactory.h" | |
| 13 #endif | |
| 14 | |
| 15 #ifdef SK_SUPPORT_LEGACY_DERIVED_PICTURE_CLASSES | |
| 16 | |
| 17 #include "SkPicture.h" | |
| 18 #include "SkPoint.h" | |
| 19 #include "SkSize.h" | |
| 20 | |
| 21 /** | |
| 22 * Subclass of SkPicture that creates an SkTileGrid. The tile grid has lower rec
ording | |
| 23 * and playback costs then rTree, but is less effective at eliminating extraneou
s | |
| 24 * primitives for arbitrary query rectangles. It is most effective for | |
| 25 * tiled playback when the tile structure is known at record time. | |
| 26 */ | |
| 27 class SK_API SkTileGridPicture : public SkPicture { | |
| 28 public: | |
| 29 typedef SkTileGridFactory::TileGridInfo TileGridInfo; | |
| 30 | |
| 31 /** | |
| 32 * Constructor | |
| 33 * @param width recording canvas width in device pixels | |
| 34 * @param height recording canvas height in device pixels | |
| 35 * @param info description of the tiling layout | |
| 36 */ | |
| 37 SkTileGridPicture(int width, int height, const SkTileGridFactory::TileGridIn
fo& info); | |
| 38 | |
| 39 virtual SkBBoxHierarchy* createBBoxHierarchy() const SK_OVERRIDE; | |
| 40 | |
| 41 private: | |
| 42 int fXTileCount, fYTileCount; | |
| 43 SkTileGridFactory::TileGridInfo fInfo; | |
| 44 | |
| 45 typedef SkPicture INHERITED; | |
| 46 }; | |
| 47 | |
| 48 class SkTileGridPictureFactory : public SkPictureFactory { | |
| 49 public: | |
| 50 SkTileGridPictureFactory(const SkTileGridFactory::TileGridInfo& info) : fInf
o(info) { } | |
| 51 | |
| 52 virtual SkPicture* create(int width, int height) SK_OVERRIDE { | |
| 53 return SkNEW_ARGS(SkTileGridPicture, (width, height, fInfo)); | |
| 54 } | |
| 55 | |
| 56 protected: | |
| 57 SkTileGridFactory::TileGridInfo fInfo; | |
| 58 | |
| 59 private: | |
| 60 typedef SkPictureFactory INHERITED; | |
| 61 }; | |
| 62 #endif | |
| 63 | |
| 64 #endif | |
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