| // 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_WHITERECTANLEDETECTOR_H_ |
| #define _BC_WHITERECTANLEDETECTOR_H_ |
| class CBC_CommonBitMatrix; |
| class CBC_ResultPoint; |
| class CBC_WhiteRectangleDetector { |
| public: |
| CBC_WhiteRectangleDetector(CBC_CommonBitMatrix* image); |
| CBC_WhiteRectangleDetector(CBC_CommonBitMatrix* image, |
| int32_t initSize, |
| int32_t x, |
| int32_t y); |
| virtual ~CBC_WhiteRectangleDetector(); |
| CFX_PtrArray* Detect(int32_t& e); |
| virtual void Init(int32_t& e); |
| |
| private: |
| int32_t Round(float d); |
| CBC_ResultPoint* GetBlackPointOnSegment(FX_FLOAT aX, |
| FX_FLOAT aY, |
| FX_FLOAT bX, |
| FX_FLOAT bY); |
| int32_t DistanceL2(FX_FLOAT aX, FX_FLOAT aY, FX_FLOAT bX, FX_FLOAT bY); |
| CFX_PtrArray* CenterEdges(CBC_ResultPoint* y, |
| CBC_ResultPoint* z, |
| CBC_ResultPoint* x, |
| CBC_ResultPoint* t); |
| FX_BOOL ContainsBlackPoint(int32_t a, |
| int32_t b, |
| int32_t fixed, |
| FX_BOOL horizontal); |
| const static int32_t INIT_SIZE; |
| const static int32_t CORR; |
| |
| CBC_CommonBitMatrix* m_image; |
| int32_t m_height; |
| int32_t m_width; |
| int32_t m_leftInit; |
| int32_t m_rightInit; |
| int32_t m_downInit; |
| int32_t m_upInit; |
| }; |
| #endif |