Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_QRDetector.cpp

Index: xfa/src/fxbarcode/src/BC_QRDetector.cpp
diff --git a/xfa/src/fxbarcode/src/BC_QRDetector.cpp b/xfa/src/fxbarcode/src/BC_QRDetector.cpp
deleted file mode 100644
index 5b3910b413f3801bb52be6d1d25a4c54732efa9e..0000000000000000000000000000000000000000
--- a/xfa/src/fxbarcode/src/BC_QRDetector.cpp
+++ /dev/null
@@ -1,264 +0,0 @@
-// 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
-// Original code is licensed as follows:
-/*
- * Copyright 2007 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "barcode.h"
-#include "include/BC_CommonBitMatrix.h"
-#include "include/BC_ResultPoint.h"
-#include "include/BC_QRFinderPattern.h"
-#include "include/BC_QRCoderVersion.h"
-#include "include/BC_FinderPatternInfo.h"
-#include "include/BC_QRGridSampler.h"
-#include "include/BC_QRAlignmentPatternFinder.h"
-#include "include/BC_QRFinderPatternFinder.h"
-#include "include/BC_QRDetectorResult.h"
-#include "include/BC_QRDetector.h"
-CBC_QRDetector::CBC_QRDetector(CBC_CommonBitMatrix *image): m_image(image)
-{
-}
-CBC_QRDetector::~CBC_QRDetector()
-{
-}
-CBC_QRDetectorResult *CBC_QRDetector::Detect(FX_INT32 hints, FX_INT32 &e)
-{
-    CBC_QRFinderPatternFinder finder(m_image);
-    CBC_QRFinderPatternInfo* qpi = finder.Find(hints, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    CBC_AutoPtr<CBC_QRFinderPatternInfo> info(qpi);
-    CBC_QRDetectorResult* qdr = ProcessFinderPatternInfo(info.get(), e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return qdr;
-}
-CBC_QRDetectorResult* CBC_QRDetector::ProcessFinderPatternInfo(CBC_QRFinderPatternInfo *info, FX_INT32 &e)
-{
-    CBC_AutoPtr<CBC_QRFinderPattern> topLeft(info->GetTopLeft());
-    CBC_AutoPtr<CBC_QRFinderPattern> topRight(info->GetTopRight());
-    CBC_AutoPtr<CBC_QRFinderPattern> bottomLeft(info->GetBottomLeft());
-    FX_FLOAT moduleSize = CalculateModuleSize(topLeft.get(), topRight.get(), bottomLeft.get());
-    if(moduleSize < 1.0f) {
-        e = BCExceptionRead;
-        BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    }
-    FX_INT32 dimension = ComputeDimension(topLeft.get(), topRight.get(), bottomLeft.get(), moduleSize, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    CBC_QRCoderVersion *provisionalVersion = CBC_QRCoderVersion::GetProvisionalVersionForDimension(dimension, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    FX_INT32 modulesBetweenFPCenters = provisionalVersion->GetDimensionForVersion() - 7;
-    CBC_QRAlignmentPattern * alignmentPattern = NULL;
-    if(provisionalVersion->GetAlignmentPatternCenters()->GetSize() > 0) {
-        FX_FLOAT  bottomRightX = topRight->GetX() - topLeft->GetX() + bottomLeft->GetX();
-        FX_FLOAT bottomRightY = topRight->GetY() - topLeft->GetY() + bottomLeft->GetY();
-        FX_FLOAT correctionToTopLeft = 1.0f - 3.0f / (FX_FLOAT) modulesBetweenFPCenters;
-        FX_FLOAT xtemp = (topLeft->GetX() + correctionToTopLeft * (bottomRightX - topLeft->GetX()));
-        FX_INT32 estAlignmentX = (FX_INT32)xtemp ;
-        FX_FLOAT ytemp =  (topLeft->GetY() + correctionToTopLeft * (bottomRightY - topLeft->GetY()));
-        FX_INT32 estAlignmentY = (FX_INT32)ytemp;
-        for(FX_INT32 i = 4; i <= 16; i <<= 1) {
-            CBC_QRAlignmentPattern *temp = FindAlignmentInRegion(moduleSize, estAlignmentX, estAlignmentY, (FX_FLOAT) i, e);
-            alignmentPattern = temp;
-            break;
-        }
-    }
-    CBC_CommonBitMatrix *bits = SampleGrid(m_image, topLeft.get(), topRight.get(), bottomLeft.get(), (CBC_ResultPoint*)(alignmentPattern), dimension, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    CFX_PtrArray *points = FX_NEW CFX_PtrArray;
-    if(alignmentPattern == NULL) {
-        points->Add(bottomLeft.release());
-        points->Add(topLeft.release());
-        points->Add(topRight.release());
-    } else {
-        points->Add(bottomLeft.release());
-        points->Add(topLeft.release());
-        points->Add(topRight.release());
-        points->Add(alignmentPattern);
-    }
-    return FX_NEW CBC_QRDetectorResult(bits, points);
-}
-CBC_CommonBitMatrix *CBC_QRDetector::SampleGrid(CBC_CommonBitMatrix *image, CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight,
-        CBC_ResultPoint *bottomLeft, CBC_ResultPoint* alignmentPattern,
-        FX_INT32 dimension, FX_INT32 &e)
-{
-    FX_FLOAT dimMinusThree = (FX_FLOAT) dimension - 3.5f;
-    FX_FLOAT bottomRightX;
-    FX_FLOAT bottomRightY;
-    FX_FLOAT sourceBottomRightX;
-    FX_FLOAT sourceBottomRightY;
-    if (alignmentPattern != NULL) {
-        bottomRightX = alignmentPattern->GetX();
-        bottomRightY = alignmentPattern->GetY();
-        sourceBottomRightX = sourceBottomRightY = dimMinusThree - 3.0f;
-    } else {
-        bottomRightX = (topRight->GetX() - topLeft->GetX()) + bottomLeft->GetX();
-        bottomRightY = (topRight->GetY() - topLeft->GetY()) + bottomLeft->GetY();
-        sourceBottomRightX = sourceBottomRightY = dimMinusThree;
-    }
-    CBC_QRGridSampler &sampler = CBC_QRGridSampler::GetInstance();
-    CBC_CommonBitMatrix* cbm = sampler.SampleGrid(image,
-                               dimension, dimension,
-                               3.5f,
-                               3.5f,
-                               dimMinusThree,
-                               3.5f,
-                               sourceBottomRightX,
-                               sourceBottomRightY,
-                               3.5f,
-                               dimMinusThree,
-                               topLeft->GetX(),
-                               topLeft->GetY(),
-                               topRight->GetX(),
-                               topRight->GetY(),
-                               bottomRightX,
-                               bottomRightY,
-                               bottomLeft->GetX(),
-                               bottomLeft->GetY(), e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return cbm;
-}
-FX_INT32 CBC_QRDetector::ComputeDimension(CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight,
-        CBC_ResultPoint *bottomLeft, FX_FLOAT moduleSize, FX_INT32 &e)
-{
-    FX_INT32 tltrCentersDimension = Round(CBC_QRFinderPatternFinder::Distance(topLeft, topRight) / moduleSize);
-    FX_INT32 tlblCentersDimension = Round(CBC_QRFinderPatternFinder::Distance(topLeft, bottomLeft) / moduleSize);
-    FX_INT32 dimension = ((tltrCentersDimension + tlblCentersDimension) >> 1) + 7;
-    switch(dimension & 0x03) {
-        case 0:
-            dimension++;
-            break;
-        case 2:
-            dimension--;
-            break;
-        case 3: {
-                e = BCExceptionRead;
-                BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-            }
-    }
-    return dimension;
-}
-FX_FLOAT CBC_QRDetector::CalculateModuleSize(CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight, CBC_ResultPoint *bottomLeft)
-{
-    return (CalculateModuleSizeOneWay(topLeft, topRight) + CalculateModuleSizeOneWay(topLeft, bottomLeft)) / 2.0f;
-}
-FX_FLOAT CBC_QRDetector::CalculateModuleSizeOneWay(CBC_ResultPoint *pattern, CBC_ResultPoint *otherPattern)
-{
-    FX_FLOAT moduleSizeEst1 = SizeOfBlackWhiteBlackRunBothWays((FX_INT32) pattern->GetX(),
-                              (FX_INT32) pattern->GetY(),
-                              (FX_INT32) otherPattern->GetX(),
-                              (FX_INT32) otherPattern->GetY());
-    FX_FLOAT moduleSizeEst2 = SizeOfBlackWhiteBlackRunBothWays((FX_INT32) otherPattern->GetX(),
-                              (FX_INT32) otherPattern->GetY(),
-                              (FX_INT32) pattern->GetX(),
-                              (FX_INT32) pattern->GetY());
-    if (FXSYS_isnan(moduleSizeEst1)) {
-        return moduleSizeEst2;
-    }
-    if (FXSYS_isnan(moduleSizeEst2)) {
-        return moduleSizeEst1;
-    }
-    return (moduleSizeEst1 + moduleSizeEst2) / 14.0f;
-}
-FX_INT32 CBC_QRDetector::Round(FX_FLOAT d)
-{
-    return (FX_INT32)(d + 0.5f);
-}
-FX_FLOAT CBC_QRDetector::SizeOfBlackWhiteBlackRunBothWays(FX_INT32 fromX, FX_INT32 fromY, FX_INT32 toX, FX_INT32 toY)
-{
-    FX_FLOAT result = SizeOfBlackWhiteBlackRun(fromX, fromY, toX, toY);
-    FX_INT32 otherToX = fromX - (toX - fromX);
-    if (otherToX < 0) {
-        otherToX = -1;
-    } else if (otherToX >= m_image->GetWidth()) {
-        otherToX = m_image->GetWidth();
-    }
-    FX_INT32 otherToY = fromY - (toY - fromY);
-    if (otherToY < 0) {
-        otherToY = -1;
-    } else if (otherToY >= m_image->GetHeight()) {
-        otherToY = m_image->GetHeight();
-    }
-    result += SizeOfBlackWhiteBlackRun(fromX, fromY, otherToX, otherToY);
-    return result - 1.0f;
-}
-FX_FLOAT CBC_QRDetector::SizeOfBlackWhiteBlackRun(FX_INT32 fromX, FX_INT32 fromY, FX_INT32 toX, FX_INT32 toY)
-{
-    FX_BOOL steep = FXSYS_abs(toY - fromY) > FXSYS_abs(toX - fromX);
-    if (steep) {
-        FX_INT32 temp = fromX;
-        fromX = fromY;
-        fromY = temp;
-        temp = toX;
-        toX = toY;
-        toY = temp;
-    }
-    FX_INT32 dx = FXSYS_abs(toX - fromX);
-    FX_INT32 dy = FXSYS_abs(toY - fromY);
-    FX_INT32 error = -dx >> 1;
-    FX_INT32 ystep = fromY < toY ? 1 : -1;
-    FX_INT32 xstep = fromX < toX ? 1 : -1;
-    FX_INT32 state = 0;
-    for (FX_INT32 x = fromX, y = fromY; x != toX; x += xstep) {
-        FX_INT32 realX = steep ? y : x;
-        FX_INT32 realY = steep ? x : y;
-        if (state == 1) {
-            if (m_image->Get(realX, realY)) {
-                state++;
-            }
-        } else {
-            if (!m_image->Get(realX, realY)) {
-                state++;
-            }
-        }
-        if (state == 3) {
-            FX_INT32 diffX = x - fromX;
-            FX_INT32 diffY = y - fromY;
-            return (FX_FLOAT) sqrt((double) (diffX * diffX + diffY * diffY));
-        }
-        error += dy;
-        if (error > 0) {
-            y += ystep;
-            error -= dx;
-        }
-    }
-    FX_INT32 diffX = toX - fromX;
-    FX_INT32 diffY = toY - fromY;
-    return (FX_FLOAT) sqrt((double) (diffX * diffX + diffY * diffY));
-}
-CBC_QRAlignmentPattern *CBC_QRDetector::FindAlignmentInRegion(FX_FLOAT overallEstModuleSize, FX_INT32 estAlignmentX,
-        FX_INT32 estAlignmentY, FX_FLOAT allowanceFactor, FX_INT32 &e)
-{
-    FX_INT32 allowance = (FX_INT32) (allowanceFactor * overallEstModuleSize);
-    FX_INT32 alignmentAreaLeftX = FX_MAX(0, estAlignmentX - allowance);
-    FX_INT32 alignmentAreaRightX = FX_MIN(m_image->GetWidth() - 1, estAlignmentX + allowance);
-    if (alignmentAreaRightX - alignmentAreaLeftX < overallEstModuleSize * 3) {
-        e = BCExceptionRead;
-        BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    }
-    FX_INT32 alignmentAreaTopY = FX_MAX(0, estAlignmentY - allowance);
-    FX_INT32 alignmentAreaBottomY = FX_MIN(m_image->GetHeight() - 1, estAlignmentY + allowance);
-    CBC_QRAlignmentPatternFinder alignmentFinder(m_image,
-            alignmentAreaLeftX,
-            alignmentAreaTopY,
-            alignmentAreaRightX - alignmentAreaLeftX,
-            alignmentAreaBottomY - alignmentAreaTopY,
-            overallEstModuleSize);
-    CBC_QRAlignmentPattern *qap = alignmentFinder.Find(e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return qap;
-}