// 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_ean8.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_OnedEAN8Reader.h" #include "xfa/fxbarcode/oned/BC_OnedEAN8Writer.h" CBC_EAN8::CBC_EAN8() { m_pBCReader = (CBC_Reader*)new (CBC_OnedEAN8Reader); m_pBCWriter = (CBC_Writer*)new (CBC_OnedEAN8Writer); } CBC_EAN8::~CBC_EAN8() { delete (m_pBCReader); delete (m_pBCWriter); } CFX_WideString CBC_EAN8::Preprocess(const CFX_WideStringC& contents) { CFX_WideString encodeContents = ((CBC_OnedEAN8Writer*)m_pBCWriter)->FilterContents(contents); int32_t length = encodeContents.GetLength(); if (length <= 7) { for (int32_t i = 0; i < 7 - length; i++) encodeContents = FX_WCHAR('0') + encodeContents; CFX_ByteString byteString = encodeContents.UTF8Encode(); int32_t checksum = ((CBC_OnedEAN8Writer*)m_pBCWriter)->CalcChecksum(byteString); encodeContents += FX_WCHAR(checksum - 0 + '0'); } if (length > 8) encodeContents = encodeContents.Mid(0, 8); return encodeContents; } FX_BOOL CBC_EAN8::Encode(const CFX_WideStringC& contents, FX_BOOL isDevice, int32_t& e) { if (contents.IsEmpty()) { e = BCExceptionNoContents; return FALSE; } BCFORMAT format = BCFORMAT_EAN_8; int32_t outWidth = 0; int32_t outHeight = 0; CFX_WideString encodeContents = Preprocess(contents); CFX_ByteString byteString = encodeContents.UTF8Encode(); m_renderContents = encodeContents; uint8_t* data = static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter) ->Encode(byteString, format, outWidth, outHeight, e); BC_EXCEPTION_CHECK_ReturnValue(e, FALSE); ((CBC_OneDimWriter*)m_pBCWriter) ->RenderResult(encodeContents.AsStringC(), data, outWidth, isDevice, e); FX_Free(data); BC_EXCEPTION_CHECK_ReturnValue(e, FALSE); return TRUE; } FX_BOOL CBC_EAN8::RenderDevice(CFX_RenderDevice* device, const CFX_Matrix* matrix, int32_t& e) { ((CBC_OneDimWriter*)m_pBCWriter) ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e); BC_EXCEPTION_CHECK_ReturnValue(e, FALSE); return TRUE; } FX_BOOL CBC_EAN8::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) { ((CBC_OneDimWriter*)m_pBCWriter) ->RenderBitmapResult(pOutBitmap, m_renderContents.AsStringC(), e); BC_EXCEPTION_CHECK_ReturnValue(e, FALSE); return TRUE; } CFX_WideString CBC_EAN8::Decode(uint8_t* buf, int32_t width, int32_t height, int32_t& e) { CFX_WideString str; return str; } CFX_WideString CBC_EAN8::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()); }