SkSGInvalidationController.h

Go to the documentation of this file.

/*
 * Copyright 2017 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef SkSGInvalidationController_DEFINED
#define SkSGInvalidationController_DEFINED
 
#include "include/core/SkMatrix.h"
#include "include/core/SkRect.h"
#include "include/core/SkTypes.h"
 
#include <vector>
 
namespace sksg {
 
/**
 * Receiver for invalidation events.
 *
 * Tracks dirty regions for repaint.
 */
class InvalidationController {
public:
    InvalidationController();
    InvalidationController(const InvalidationController&) = delete;
    InvalidationController& operator=(const InvalidationController&) = delete;
 
    void inval(const SkRect&, const SkMatrix& ctm = SkMatrix::I());
 
    const SkRect& bounds() const { return fBounds; }
 
    auto begin() const { return fRects.cbegin(); }
    auto   end() const { return fRects.cend();   }
 
    void reset();
 
private:
    std::vector<SkRect> fRects;
    SkRect              fBounds;
};
 
} // namespace sksg
 
#endif // SkSGInvalidationController_DEFINED