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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkTileGridPicture_DEFINED
#define SkTileGridPicture_DEFINED
#ifdef SK_SUPPORT_LEGACY_PICTURE_HEADERS
#include "SkBBHFactory.h"
#endif
#ifdef SK_SUPPORT_LEGACY_DERIVED_PICTURE_CLASSES
#include "SkPicture.h"
#include "SkPoint.h"
#include "SkSize.h"
/**
* Subclass of SkPicture that creates an SkTileGrid. The tile grid has lower recording
* and playback costs then rTree, but is less effective at eliminating extraneous
* primitives for arbitrary query rectangles. It is most effective for
* tiled playback when the tile structure is known at record time.
*/
class SK_API SkTileGridPicture : public SkPicture {
public:
typedef SkTileGridFactory::TileGridInfo TileGridInfo;
/**
* Constructor
* @param width recording canvas width in device pixels
* @param height recording canvas height in device pixels
* @param info description of the tiling layout
*/
SkTileGridPicture(int width, int height, const SkTileGridFactory::TileGridInfo& info);
virtual SkBBoxHierarchy* createBBoxHierarchy() const SK_OVERRIDE;
private:
int fXTileCount, fYTileCount;
SkTileGridFactory::TileGridInfo fInfo;
typedef SkPicture INHERITED;
};
class SkTileGridPictureFactory : public SkPictureFactory {
public:
SkTileGridPictureFactory(const SkTileGridFactory::TileGridInfo& info) : fInfo(info) { }
virtual SkPicture* create(int width, int height) SK_OVERRIDE {
return SkNEW_ARGS(SkTileGridPicture, (width, height, fInfo));
}
protected:
SkTileGridFactory::TileGridInfo fInfo;
private:
typedef SkPictureFactory INHERITED;
};
#endif
#endif
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