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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef _BC_QRFINDERPATTERNFINDER_H_
#define _BC_QRFINDERPATTERNFINDER_H_
class CBC_CommonBitMatrix;
class CBC_QRFinderPattern;
class CBC_ResultPoint;
class CBC_QRFinderPatternInfo;
class CBC_QRFinderPatternFinder
{
private:
const static int32_t CENTER_QUORUM;
const static int32_t MIN_SKIP;
const static int32_t MAX_MODULES;
const static int32_t INTEGER_MATH_SHIFT;
FX_BOOL m_hasSkipped;
CBC_CommonBitMatrix* m_image;
CFX_Int32Array m_crossCheckStateCount;
CFX_PtrArray m_possibleCenters;
public:
CBC_QRFinderPatternFinder(CBC_CommonBitMatrix *image);
virtual ~CBC_QRFinderPatternFinder();
int32_t FindRowSkip();
CBC_CommonBitMatrix* GetImage();
CBC_QRFinderPatternInfo* Find(int32_t hint, int32_t &e);
CFX_Int32Array &GetCrossCheckStateCount();
CFX_PtrArray *GetPossibleCenters();
CFX_PtrArray *SelectBestpatterns(int32_t &e);
FX_BOOL HandlePossibleCenter(const CFX_Int32Array &stateCount, int32_t i, int32_t j);
FX_BOOL HaveMultiplyConfirmedCenters();
FX_FLOAT CenterFromEnd(const CFX_Int32Array &stateCount, int32_t end);
FX_FLOAT CrossCheckVertical(int32_t startI, int32_t centerJ, int32_t maxCount, int32_t originalStateCountTotal);
FX_FLOAT CrossCheckHorizontal(int32_t startJ, int32_t CenterI, int32_t maxCOunt, int32_t originalStateCountTotal);
static void OrderBestPatterns(CFX_PtrArray *patterns);
static FX_BOOL FoundPatternCross(const CFX_Int32Array &stateCount);
static FX_FLOAT Distance(CBC_ResultPoint* point1, CBC_ResultPoint* point2);
};
#endif
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