Remove barcode reading code.

We never read barcodes, we only write them. Remove code related to barcode
reading.

Review-Url: https://codereview.chromium.org/2071633002

1 files changed, 0 insertions, 262 deletions

diff --git a/xfa/fxbarcode/common/BC_WhiteRectangleDetector.cpp b/xfa/fxbarcode/common/BC_WhiteRectangleDetector.cpp
deleted file mode 100644
index 45ffd63858..0000000000
--- a/xfa/fxbarcode/common/BC_WhiteRectangleDetector.cpp
+++ /dev/null
@@ -1,262 +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 2010 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 "xfa/fxbarcode/common/BC_WhiteRectangleDetector.h"
-
-#include <memory>
-
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/utils.h"
-
-CBC_WhiteRectangleDetector::CBC_WhiteRectangleDetector(
-    CBC_CommonBitMatrix* image) {
-  m_image = image;
-  m_height = image->GetHeight();
-  m_width = image->GetWidth();
-  m_leftInit = (m_width - INIT_SIZE) >> 1;
-  m_rightInit = (m_width + INIT_SIZE) >> 1;
-  m_upInit = (m_height - INIT_SIZE) >> 1;
-  m_downInit = (m_height + INIT_SIZE) >> 1;
-}
-void CBC_WhiteRectangleDetector::Init(int32_t& e) {
-  if (m_upInit < 0 || m_leftInit < 0 || m_downInit >= m_height ||
-      m_rightInit >= m_width) {
-    e = BCExceptionNotFound;
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-  }
-}
-CBC_WhiteRectangleDetector::CBC_WhiteRectangleDetector(
-    CBC_CommonBitMatrix* image,
-    int32_t initSize,
-    int32_t x,
-    int32_t y) {
-  m_image = image;
-  m_height = image->GetHeight();
-  m_width = image->GetWidth();
-  int32_t halfsize = initSize >> 1;
-  m_leftInit = x - halfsize;
-  m_rightInit = x + halfsize;
-  m_upInit = y - halfsize;
-  m_downInit = y + halfsize;
-}
-
-CBC_WhiteRectangleDetector::~CBC_WhiteRectangleDetector() {}
-
-CFX_ArrayTemplate<CBC_ResultPoint*>* CBC_WhiteRectangleDetector::Detect(
-    int32_t& e) {
-  int32_t left = m_leftInit;
-  int32_t right = m_rightInit;
-  int32_t up = m_upInit;
-  int32_t down = m_downInit;
-  FX_BOOL sizeExceeded = FALSE;
-  FX_BOOL aBlackPointFoundOnBorder = TRUE;
-  FX_BOOL atLeastOneBlackPointFoundOnBorder = FALSE;
-  while (aBlackPointFoundOnBorder) {
-    aBlackPointFoundOnBorder = FALSE;
-    FX_BOOL rightBorderNotWhite = TRUE;
-    while (rightBorderNotWhite && right < m_width) {
-      rightBorderNotWhite = ContainsBlackPoint(up, down, right, FALSE);
-      if (rightBorderNotWhite) {
-        right++;
-        aBlackPointFoundOnBorder = TRUE;
-      }
-    }
-    if (right >= m_width) {
-      sizeExceeded = TRUE;
-      break;
-    }
-    FX_BOOL bottomBorderNotWhite = TRUE;
-    while (bottomBorderNotWhite && down < m_height) {
-      bottomBorderNotWhite = ContainsBlackPoint(left, right, down, TRUE);
-      if (bottomBorderNotWhite) {
-        down++;
-        aBlackPointFoundOnBorder = TRUE;
-      }
-    }
-    if (down >= m_height) {
-      sizeExceeded = TRUE;
-      break;
-    }
-    FX_BOOL leftBorderNotWhite = TRUE;
-    while (leftBorderNotWhite && left >= 0) {
-      leftBorderNotWhite = ContainsBlackPoint(up, down, left, FALSE);
-      if (leftBorderNotWhite) {
-        left--;
-        aBlackPointFoundOnBorder = TRUE;
-      }
-    }
-    if (left < 0) {
-      sizeExceeded = TRUE;
-      break;
-    }
-    FX_BOOL topBorderNotWhite = TRUE;
-    while (topBorderNotWhite && up >= 0) {
-      topBorderNotWhite = ContainsBlackPoint(left, right, up, TRUE);
-      if (topBorderNotWhite) {
-        up--;
-        aBlackPointFoundOnBorder = TRUE;
-      }
-    }
-    if (up < 0) {
-      sizeExceeded = TRUE;
-      break;
-    }
-    if (aBlackPointFoundOnBorder) {
-      atLeastOneBlackPointFoundOnBorder = TRUE;
-    }
-  }
-  if (!sizeExceeded && atLeastOneBlackPointFoundOnBorder) {
-    int32_t maxSize = right - left;
-    std::unique_ptr<CBC_ResultPoint> z;
-    for (int32_t i = 1; i < maxSize; i++) {
-      z.reset(GetBlackPointOnSegment((FX_FLOAT)left, (FX_FLOAT)(down - i),
-                                     (FX_FLOAT)(left + i), (FX_FLOAT)(down)));
-      if (z)
-        break;
-    }
-    if (!z.get()) {
-      e = BCExceptionNotFound;
-      BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-    }
-    std::unique_ptr<CBC_ResultPoint> t;
-    for (int32_t j = 1; j < maxSize; j++) {
-      t.reset(GetBlackPointOnSegment((FX_FLOAT)left, (FX_FLOAT)(up + j),
-                                     (FX_FLOAT)(left + j), (FX_FLOAT)up));
-      if (t)
-        break;
-    }
-    if (!t.get()) {
-      e = BCExceptionNotFound;
-      BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-    }
-    std::unique_ptr<CBC_ResultPoint> x;
-    for (int32_t k = 1; k < maxSize; k++) {
-      x.reset(GetBlackPointOnSegment((FX_FLOAT)right, (FX_FLOAT)(up + k),
-                                     (FX_FLOAT)(right - k), (FX_FLOAT)up));
-      if (x)
-        break;
-    }
-    if (!x.get()) {
-      e = BCExceptionNotFound;
-      BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-    }
-    std::unique_ptr<CBC_ResultPoint> y;
-    for (int32_t m = 1; m < maxSize; m++) {
-      y.reset(GetBlackPointOnSegment((FX_FLOAT)right, (FX_FLOAT)(down - m),
-                                     (FX_FLOAT)(right - m), (FX_FLOAT)down));
-      if (y)
-        break;
-    }
-    if (!y.get()) {
-      e = BCExceptionNotFound;
-      BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-    }
-    return CenterEdges(y.get(), z.get(), x.get(), t.get());
-  }
-
-  e = BCExceptionNotFound;
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return nullptr;
-}
-
-int32_t CBC_WhiteRectangleDetector::Round(FX_FLOAT d) {
-  return (int32_t)(d + 0.5f);
-}
-CBC_ResultPoint* CBC_WhiteRectangleDetector::GetBlackPointOnSegment(
-    FX_FLOAT aX,
-    FX_FLOAT aY,
-    FX_FLOAT bX,
-    FX_FLOAT bY) {
-  int32_t dist = DistanceL2(aX, aY, bX, bY);
-  float xStep = (bX - aX) / dist;
-  float yStep = (bY - aY) / dist;
-  for (int32_t i = 0; i < dist; i++) {
-    int32_t x = Round(aX + i * xStep);
-    int32_t y = Round(aY + i * yStep);
-    if (m_image->Get(x, y)) {
-      return new CBC_ResultPoint((FX_FLOAT)x, (FX_FLOAT)y);
-    }
-  }
-  return nullptr;
-}
-int32_t CBC_WhiteRectangleDetector::DistanceL2(FX_FLOAT aX,
-                                               FX_FLOAT aY,
-                                               FX_FLOAT bX,
-                                               FX_FLOAT bY) {
-  float xDiff = aX - bX;
-  float yDiff = aY - bY;
-  return Round((float)sqrt(xDiff * xDiff + yDiff * yDiff));
-}
-
-CFX_ArrayTemplate<CBC_ResultPoint*>* CBC_WhiteRectangleDetector::CenterEdges(
-    CBC_ResultPoint* y,
-    CBC_ResultPoint* z,
-    CBC_ResultPoint* x,
-    CBC_ResultPoint* t) const {
-  CFX_ArrayTemplate<CBC_ResultPoint*>* result =
-      new CFX_ArrayTemplate<CBC_ResultPoint*>();
-  result->SetSize(4);
-
-  float yi = y->GetX();
-  float yj = y->GetY();
-  float zi = z->GetX();
-  float zj = z->GetY();
-  float xi = x->GetX();
-  float xj = x->GetY();
-  float ti = t->GetX();
-  float tj = t->GetY();
-
-  if (yi < m_width / 2) {
-    (*result)[0] = new CBC_ResultPoint(ti - CORR, tj + CORR);
-    (*result)[1] = new CBC_ResultPoint(zi + CORR, zj + CORR);
-    (*result)[2] = new CBC_ResultPoint(xi - CORR, xj - CORR);
-    (*result)[3] = new CBC_ResultPoint(yi + CORR, yj - CORR);
-    return result;
-  }
-
-  (*result)[0] = new CBC_ResultPoint(ti + CORR, tj + CORR);
-  (*result)[1] = new CBC_ResultPoint(zi + CORR, zj - CORR);
-  (*result)[2] = new CBC_ResultPoint(xi - CORR, xj + CORR);
-  (*result)[3] = new CBC_ResultPoint(yi - CORR, yj - CORR);
-  return result;
-}
-
-FX_BOOL CBC_WhiteRectangleDetector::ContainsBlackPoint(int32_t a,
-                                                       int32_t b,
-                                                       int32_t fixed,
-                                                       FX_BOOL horizontal) {
-  if (horizontal) {
-    for (int32_t x = a; x <= b; x++) {
-      if (m_image->Get(x, fixed)) {
-        return TRUE;
-      }
-    }
-  } else {
-    for (int32_t y = a; y <= b; y++) {
-      if (m_image->Get(fixed, y)) {
-        return TRUE;
-      }
-    }
-  }
-  return FALSE;
-}