xfa/fxbarcode/cbc_codabar.cpp

// Copyright 2016 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
/*
 * Copyright 2011 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/cbc_codabar.h"

#include "xfa/fxbarcode/BC_BinaryBitmap.h"
#include "xfa/fxbarcode/BC_BufferedImageLuminanceSource.h"
#include "xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.h"
#include "xfa/fxbarcode/oned/BC_OnedCodaBarReader.h"
#include "xfa/fxbarcode/oned/BC_OnedCodaBarWriter.h"

CBC_Codabar::CBC_Codabar() {
  m_pBCReader = (CBC_Reader*)new (CBC_OnedCodaBarReader);
  m_pBCWriter = (CBC_Writer*)new (CBC_OnedCodaBarWriter);
}

CBC_Codabar::~CBC_Codabar() {
  delete (m_pBCReader);
  delete (m_pBCWriter);
}

FX_BOOL CBC_Codabar::SetStartChar(FX_CHAR start) {
  if (m_pBCWriter)
    return ((CBC_OnedCodaBarWriter*)m_pBCWriter)->SetStartChar(start);
  return FALSE;
}

FX_BOOL CBC_Codabar::SetEndChar(FX_CHAR end) {
  if (m_pBCWriter)
    return ((CBC_OnedCodaBarWriter*)m_pBCWriter)->SetEndChar(end);
  return FALSE;
}

FX_BOOL CBC_Codabar::SetTextLocation(BC_TEXT_LOC location) {
  return ((CBC_OnedCodaBarWriter*)m_pBCWriter)->SetTextLocation(location);
}

FX_BOOL CBC_Codabar::SetWideNarrowRatio(int32_t ratio) {
  if (m_pBCWriter)
    return ((CBC_OnedCodaBarWriter*)m_pBCWriter)->SetWideNarrowRatio(ratio);
  return FALSE;
}

FX_BOOL CBC_Codabar::Encode(const CFX_WideStringC& contents,
                            FX_BOOL isDevice,
                            int32_t& e) {
  if (contents.IsEmpty()) {
    e = BCExceptionNoContents;
    return FALSE;
  }
  BCFORMAT format = BCFORMAT_CODABAR;
  int32_t outWidth = 0;
  int32_t outHeight = 0;
  CFX_WideString filtercontents =
      ((CBC_OneDimWriter*)m_pBCWriter)->FilterContents(contents);
  CFX_ByteString byteString = filtercontents.UTF8Encode();
  m_renderContents = filtercontents;
  uint8_t* data = static_cast<CBC_OnedCodaBarWriter*>(m_pBCWriter)
                      ->Encode(byteString, format, outWidth, outHeight, e);
  BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
  ((CBC_OneDimWriter*)m_pBCWriter)
      ->RenderResult(filtercontents.AsStringC(), data, outWidth, isDevice, e);
  FX_Free(data);
  BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
  return TRUE;
}

FX_BOOL CBC_Codabar::RenderDevice(CFX_RenderDevice* device,
                                  const CFX_Matrix* matrix,
                                  int32_t& e) {
  CFX_WideString renderCon =
      ((CBC_OnedCodaBarWriter*)m_pBCWriter)
          ->encodedContents(m_renderContents.AsStringC());
  ((CBC_OneDimWriter*)m_pBCWriter)
      ->RenderDeviceResult(device, matrix, renderCon.AsStringC(), e);
  BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
  return TRUE;
}

FX_BOOL CBC_Codabar::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) {
  CFX_WideString renderCon =
      ((CBC_OnedCodaBarWriter*)m_pBCWriter)
          ->encodedContents(m_renderContents.AsStringC());
  ((CBC_OneDimWriter*)m_pBCWriter)
      ->RenderBitmapResult(pOutBitmap, renderCon.AsStringC(), e);
  BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
  return TRUE;
}

CFX_WideString CBC_Codabar::Decode(uint8_t* buf,
                                   int32_t width,
                                   int32_t height,
                                   int32_t& e) {
  CFX_WideString str;
  return str;
}

CFX_WideString CBC_Codabar::Decode(CFX_DIBitmap* pBitmap, int32_t& e) {
  CBC_BufferedImageLuminanceSource source(pBitmap);
  CBC_GlobalHistogramBinarizer binarizer(&source);
  CBC_BinaryBitmap bitmap(&binarizer);
  CFX_ByteString str = m_pBCReader->Decode(&bitmap, 0, e);
  BC_EXCEPTION_CHECK_ReturnValue(e, FX_WSTRC(L""));
  return CFX_WideString::FromUTF8(str.AsStringC());
}