Use smart pointers for class owned pointers in xfa/fxbarcode

xfa/fxbarcode/qrcode/BC_QRCoder.cpp

 // 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 2008 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 <utility>
+
 #include "xfa/fxbarcode/common/BC_CommonByteMatrix.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoder.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderMode.h"
 #include "xfa/fxbarcode/utils.h"
 
-CBC_QRCoder::CBC_QRCoder() {
-  m_mode = nullptr;
-  m_ecLevel = nullptr;
-  m_version = -1;
-  m_matrixWidth = -1;
-  m_maskPattern = -1;
-  m_numTotalBytes = -1;
-  m_numDataBytes = -1;
-  m_numECBytes = -1;
-  m_numRSBlocks = -1;
-  m_matrix = nullptr;
-}
-CBC_QRCoder::~CBC_QRCoder() {
-  delete m_matrix;
-}
-CBC_QRCoderMode* CBC_QRCoder::GetMode() {
+CBC_QRCoder::CBC_QRCoder()
+    : m_mode(nullptr),
+      m_ecLevel(nullptr),
+      m_version(-1),
+      m_matrixWidth(-1),
+      m_maskPattern(-1),
+      m_numTotalBytes(-1),
+      m_numDataBytes(-1),
+      m_numECBytes(-1),
+      m_numRSBlocks(-1) {}
+
+CBC_QRCoder::~CBC_QRCoder() {}
+
+CBC_QRCoderMode* CBC_QRCoder::GetMode() const {
   return m_mode;
 }
-CBC_QRCoderErrorCorrectionLevel* CBC_QRCoder::GetECLevel() {
+
+CBC_QRCoderErrorCorrectionLevel* CBC_QRCoder::GetECLevel() const {
   return m_ecLevel;
 }
-int32_t CBC_QRCoder::GetVersion() {
+
+int32_t CBC_QRCoder::GetVersion() const {
   return m_version;
 }
-int32_t CBC_QRCoder::GetMatrixWidth() {
+
+int32_t CBC_QRCoder::GetMatrixWidth() const {
   return m_matrixWidth;
 }
-int32_t CBC_QRCoder::GetMaskPattern() {
+
+int32_t CBC_QRCoder::GetMaskPattern() const {
   return m_maskPattern;
 }
-int32_t CBC_QRCoder::GetNumTotalBytes() {
+
+int32_t CBC_QRCoder::GetNumTotalBytes() const {
   return m_numTotalBytes;
 }
-int32_t CBC_QRCoder::GetNumDataBytes() {
+
+int32_t CBC_QRCoder::GetNumDataBytes() const {
   return m_numDataBytes;
 }
-int32_t CBC_QRCoder::GetNumECBytes() {
+
+int32_t CBC_QRCoder::GetNumECBytes() const {
   return m_numECBytes;
 }
-int32_t CBC_QRCoder::GetNumRSBlocks() {
+
+int32_t CBC_QRCoder::GetNumRSBlocks() const {
   return m_numRSBlocks;
 }
-CBC_CommonByteMatrix* CBC_QRCoder::GetMatrix() {
-  return m_matrix;
+
+CBC_CommonByteMatrix* CBC_QRCoder::GetMatrix() const {
+  return m_matrix.get();
 }
+
 int32_t CBC_QRCoder::At(int32_t x, int32_t y, int32_t& e) {
   int32_t value = m_matrix->Get(x, y);
   if (!(value == 0 || value == 1)) {
     e = BCExceptionValueMustBeEither0or1;
     BC_EXCEPTION_CHECK_ReturnValue(e, 0);
   }
   return value;
 }
+
 FX_BOOL CBC_QRCoder::IsValid() {
   return m_mode && m_ecLevel && m_version != -1 && m_matrixWidth != -1 &&
          m_maskPattern != -1 && m_numTotalBytes != -1 && m_numDataBytes != -1 &&
          m_numECBytes != -1 && m_numRSBlocks != -1 &&
          IsValidMaskPattern(m_maskPattern) &&
          m_numTotalBytes == m_numDataBytes + m_numECBytes && m_matrix &&
          m_matrixWidth == m_matrix->GetWidth() &&
          m_matrix->GetWidth() == m_matrix->GetHeight();
 }
+
 void CBC_QRCoder::SetMode(CBC_QRCoderMode* value) {
   m_mode = value;
 }
+
 void CBC_QRCoder::SetECLevel(CBC_QRCoderErrorCorrectionLevel* ecLevel) {
   m_ecLevel = ecLevel;
 }
+
 void CBC_QRCoder::SetVersion(int32_t version) {
   m_version = version;
 }
+
 void CBC_QRCoder::SetMatrixWidth(int32_t width) {
   m_matrixWidth = width;
 }
+
 void CBC_QRCoder::SetMaskPattern(int32_t pattern) {
   m_maskPattern = pattern;
 }
+
 void CBC_QRCoder::SetNumDataBytes(int32_t bytes) {
   m_numDataBytes = bytes;
 }
+
 void CBC_QRCoder::SetNumTotalBytes(int32_t value) {
   m_numTotalBytes = value;
 }
+
 void CBC_QRCoder::SetNumRSBlocks(int32_t block) {
   m_numRSBlocks = block;
 }
+
 void CBC_QRCoder::SetNumECBytes(int32_t value) {
   m_numECBytes = value;
 }
+
 FX_BOOL CBC_QRCoder::IsValidMaskPattern(int32_t maskPattern) {
-  return maskPattern >= 0 && maskPattern < NUM_MASK_PATTERNS;
+  return maskPattern >= 0 && maskPattern < kNumMaskPatterns;
 }
-void CBC_QRCoder::SetMatrix(CBC_CommonByteMatrix* value) {
-  m_matrix = value;
+
+void CBC_QRCoder::SetMatrix(std::unique_ptr<CBC_CommonByteMatrix> pMatrix) {
+  m_matrix = std::move(pMatrix);
 }
-const int32_t CBC_QRCoder::NUM_MASK_PATTERNS = 8;