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/*
* Copyright 2011 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkDrawFilter_DEFINED
#define SkDrawFilter_DEFINED
#include "SkRefCnt.h"
class SkCanvas;
class SkPaint;
/**
* DEPRECATED - use SkPaintFilterCanvas instead.
*
* Right before something is being draw, filter() is called with the
* paint. The filter may modify the paint as it wishes, which will then be
* used for the actual drawing. Note: this modification only lasts for the
* current draw, as a temporary copy of the paint is used.
*/
class SK_API SkDrawFilter : public SkRefCnt {
public:
enum Type {
kPaint_Type,
kPoint_Type,
kLine_Type,
kBitmap_Type,
kRect_Type,
kRRect_Type,
kOval_Type,
kPath_Type,
kText_Type,
};
static constexpr int kTypeCount = kText_Type + 1;
/**
* Called with the paint that will be used to draw the specified type.
* The implementation may modify the paint as they wish. If filter()
* returns false, the draw will be skipped.
*/
virtual bool filter(SkPaint*, Type) = 0;
private:
typedef SkRefCnt INHERITED;
};
#endif
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