text: // 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 2013 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/BC_ResultPoint.h"
  #include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
  #include "xfa/fxbarcode/pdf417/BC_PDF417BoundingBox.h"
  #include "xfa/fxbarcode/utils.h"
  
  CBC_BoundingBox::CBC_BoundingBox(CBC_CommonBitMatrix* image,
                                   CBC_ResultPoint* topLeft,
                                   CBC_ResultPoint* bottomLeft,
                                   CBC_ResultPoint* topRight,
                                   CBC_ResultPoint* bottomRight,
                                   int32_t& e) {
    if ((topLeft == NULL && topRight == NULL) ||
        (bottomLeft == NULL && bottomRight == NULL) ||
        (topLeft && bottomLeft == NULL) || (topRight && bottomRight == NULL)) {
      e = BCExceptionNotFoundInstance;
    }
    init(image, topLeft, bottomLeft, topRight, bottomRight);
  }
  CBC_BoundingBox::CBC_BoundingBox(CBC_BoundingBox* boundingBox) {
    init(boundingBox->m_image, boundingBox->m_topLeft, boundingBox->m_bottomLeft,
         boundingBox->m_topRight, boundingBox->m_bottomRight);
  }
  
  CBC_BoundingBox::~CBC_BoundingBox() {
    delete m_topLeft;
    delete m_bottomLeft;
    delete m_topRight;
    delete m_bottomRight;
  }
  
  CBC_BoundingBox* CBC_BoundingBox::merge(CBC_BoundingBox* leftBox,
                                          CBC_BoundingBox* rightBox,
                                          int32_t& e) {
    CBC_BoundingBox* boundingBox = NULL;
    if (leftBox == NULL) {
      boundingBox = new CBC_BoundingBox(rightBox);
      return boundingBox;
    }
    if (rightBox == NULL) {
      boundingBox = new CBC_BoundingBox(leftBox);
      return boundingBox;
    }
    boundingBox = new CBC_BoundingBox(leftBox->m_image, leftBox->m_topLeft,
                                      leftBox->m_bottomLeft, rightBox->m_topRight,
                                      rightBox->m_bottomRight, e);
    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
    return boundingBox;
  }
  CBC_BoundingBox* CBC_BoundingBox::addMissingRows(int32_t missingStartRows,
                                                   int32_t missingEndRows,
                                                   FX_BOOL isLeft,
                                                   int32_t& e) {
    CBC_ResultPoint* newTopLeft = m_topLeft;
    CBC_ResultPoint* newBottomLeft = m_bottomLeft;
    CBC_ResultPoint* newTopRight = m_topRight;
    CBC_ResultPoint* newBottomRight = m_bottomRight;
    CBC_ResultPoint* newTop = NULL;
    CBC_ResultPoint* newBottom = NULL;
    if (missingStartRows > 0) {
      CBC_ResultPoint* top = isLeft ? m_topLeft : m_topRight;
      int32_t newMinY = (int32_t)top->GetY() - missingStartRows;
      if (newMinY < 0) {
        newMinY = 0;
      }
      newTop = new CBC_ResultPoint((FX_FLOAT)top->GetX(), (FX_FLOAT)newMinY);
      if (isLeft) {
        newTopLeft = newTop;
      } else {
        newTopRight = newTop;
      }
    }
    if (missingEndRows > 0) {
      CBC_ResultPoint* bottom = isLeft ? m_bottomLeft : m_bottomRight;
      int32_t newMaxY = (int32_t)bottom->GetY() + missingEndRows;
      if (newMaxY >= m_image->GetHeight()) {
        newMaxY = m_image->GetHeight() - 1;
      }
      newBottom =
          new CBC_ResultPoint((FX_FLOAT)bottom->GetX(), (FX_FLOAT)newMaxY);
      if (isLeft) {
        newBottomLeft = newBottom;
      } else {
        newBottomRight = newBottom;
      }
    }
    calculateMinMaxValues();
    CBC_BoundingBox* boundingBox = new CBC_BoundingBox(
        m_image, newTopLeft, newBottomLeft, newTopRight, newBottomRight, e);
    delete newTop;
    delete newBottom;
    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
    return boundingBox;
  }
  void CBC_BoundingBox::setTopRight(CBC_ResultPoint topRight) {
    if (m_topRight) {
      delete m_topRight;
    }
    m_topRight = new CBC_ResultPoint(topRight.GetX(), topRight.GetY());
    calculateMinMaxValues();
  }
  void CBC_BoundingBox::setBottomRight(CBC_ResultPoint bottomRight) {
    if (m_bottomRight) {
      delete m_bottomRight;
    }
    m_bottomRight = new CBC_ResultPoint(bottomRight.GetX(), bottomRight.GetY());
    calculateMinMaxValues();
  }
  int32_t CBC_BoundingBox::getMinX() {
    return m_minX;
  }
  int32_t CBC_BoundingBox::getMaxX() {
    return m_maxX;
  }
  int32_t CBC_BoundingBox::getMinY() {
    return m_minY;
  }
  int32_t CBC_BoundingBox::getMaxY() {
    return m_maxY;
  }
  CBC_ResultPoint* CBC_BoundingBox::getTopLeft() {
    return m_topLeft;
  }
  CBC_ResultPoint* CBC_BoundingBox::getTopRight() {
    return m_topRight;
  }
  CBC_ResultPoint* CBC_BoundingBox::getBottomLeft() {
    return m_bottomLeft;
  }
  CBC_ResultPoint* CBC_BoundingBox::getBottomRight() {
    return m_bottomRight;
  }
  void CBC_BoundingBox::init(CBC_CommonBitMatrix* image,
                             CBC_ResultPoint* topLeft,
                             CBC_ResultPoint* bottomLeft,
                             CBC_ResultPoint* topRight,
                             CBC_ResultPoint* bottomRight) {
    m_topLeft = NULL;
    m_bottomLeft = NULL;
    m_topRight = NULL;
    m_bottomRight = NULL;
    m_image = image;
    if (topLeft) {
      m_topLeft = new CBC_ResultPoint(topLeft->GetX(), topLeft->GetY());
    }
    if (bottomLeft) {
      m_bottomLeft = new CBC_ResultPoint(bottomLeft->GetX(), bottomLeft->GetY());
    }
    if (topRight) {
      m_topRight = new CBC_ResultPoint(topRight->GetX(), topRight->GetY());
    }
    if (bottomRight) {
      m_bottomRight =
          new CBC_ResultPoint(bottomRight->GetX(), bottomRight->GetY());
    }
    calculateMinMaxValues();
  }
  void CBC_BoundingBox::calculateMinMaxValues() {
    if (m_topLeft == NULL) {
      m_topLeft = new CBC_ResultPoint(0, m_topRight->GetY());
      m_bottomLeft = new CBC_ResultPoint(0, m_bottomRight->GetY());
    } else if (m_topRight == NULL) {
      m_topRight = new CBC_ResultPoint((FX_FLOAT)m_image->GetWidth() - 1,
                                       (FX_FLOAT)m_topLeft->GetY());
      m_bottomRight = new CBC_ResultPoint((FX_FLOAT)m_image->GetWidth() - 1,
                                          (FX_FLOAT)m_bottomLeft->GetY());
    }
    m_minX = (int32_t)(m_topLeft->GetX() < m_bottomLeft->GetX()
                           ? m_topLeft->GetX()
                           : m_bottomLeft->GetX());
    m_maxX = (int32_t)(m_topRight->GetX() > m_bottomRight->GetX()
                           ? m_topRight->GetX()
                           : m_bottomRight->GetX());
    m_minY =
        (int32_t)(m_topLeft->GetY() < m_topRight->GetY() ? m_topLeft->GetY()
                                                         : m_topRight->GetY());
    m_maxY = (int32_t)(m_bottomLeft->GetY() > m_bottomRight->GetY()
                           ? m_bottomLeft->GetY()
                           : m_bottomRight->GetY());
  }
  