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      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 SkRTreeCanvas_DEFINED
     10 #define SkRTreeCanvas_DEFINED
     11 
     12 #include "SkBBoxRecord.h"
     13 
     14 /**
     15  * This records bounding box information into an SkBBoxHierarchy, and clip/transform information
     16  * into an SkPictureStateTree to allow for efficient culling and correct playback of draws.
     17  */
     18 class SkBBoxHierarchyRecord : public SkBBoxRecord {
     19 public:
     20     /** This will take a ref of h */
     21     SkBBoxHierarchyRecord(uint32_t recordFlags, SkBBoxHierarchy* h,
     22                           SkDevice*);
     23 
     24     virtual void handleBBox(const SkRect& bounds) SK_OVERRIDE;
     25 
     26     virtual int save(SaveFlags flags = kMatrixClip_SaveFlag) SK_OVERRIDE;
     27     virtual int saveLayer(const SkRect* bounds, const SkPaint* paint,
     28                           SaveFlags flags = kARGB_ClipLayer_SaveFlag) SK_OVERRIDE;
     29     virtual void restore() SK_OVERRIDE;
     30 
     31     virtual bool translate(SkScalar dx, SkScalar dy) SK_OVERRIDE;
     32     virtual bool scale(SkScalar sx, SkScalar sy) SK_OVERRIDE;
     33     virtual bool rotate(SkScalar degrees) SK_OVERRIDE;
     34     virtual bool skew(SkScalar sx, SkScalar sy) SK_OVERRIDE;
     35     virtual bool concat(const SkMatrix& matrix) SK_OVERRIDE;
     36     virtual void setMatrix(const SkMatrix& matrix) SK_OVERRIDE;
     37 
     38     virtual bool clipRect(const SkRect& rect,
     39                           SkRegion::Op op = SkRegion::kIntersect_Op,
     40                           bool doAntiAlias = false) SK_OVERRIDE;
     41     virtual bool clipRegion(const SkRegion& region,
     42                             SkRegion::Op op = SkRegion::kIntersect_Op) SK_OVERRIDE;
     43     virtual bool clipPath(const SkPath& path,
     44                           SkRegion::Op op = SkRegion::kIntersect_Op,
     45                           bool doAntiAlias = false) SK_OVERRIDE;
     46     virtual bool clipRRect(const SkRRect& rrect,
     47                            SkRegion::Op op = SkRegion::kIntersect_Op,
     48                            bool doAntiAlias = false) SK_OVERRIDE;
     49 
     50 private:
     51     typedef SkBBoxRecord INHERITED;
     52 };
     53 
     54 #endif
     55