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/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrRectanizer_DEFINED
#define GrRectanizer_DEFINED
#include "GrRect.h"
class GrRectanizerPurgeListener {
public:
virtual ~GrRectanizerPurgeListener() {}
virtual void notifyPurgeStrip(void*, int yCoord) = 0;
};
class GrRectanizer {
public:
GrRectanizer(int width, int height) : fWidth(width), fHeight(height) {
GrAssert(width >= 0);
GrAssert(height >= 0);
}
virtual ~GrRectanizer() {}
int width() const { return fWidth; }
int height() const { return fHeight; }
virtual bool addRect(int width, int height, GrIPoint16* loc) = 0;
virtual float percentFull() const = 0;
// return the Y-coordinate of a strip that should be purged, given height
// i.e. return the oldest such strip, or some other criteria. Return -1
// if there is no candidate
virtual int stripToPurge(int height) const = 0;
virtual void purgeStripAtY(int yCoord) = 0;
/**
* Our factory, which returns the subclass du jour
*/
static GrRectanizer* Factory(int width, int height);
private:
int fWidth;
int fHeight;
};
#endif
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