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// 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/oned/BC_OnedEAN8Writer.h"
CBC_EAN8::CBC_EAN8() : CBC_OneCode(new CBC_OnedEAN8Writer) {}
CBC_EAN8::~CBC_EAN8() {}
CFX_WideString CBC_EAN8::Preprocess(const CFX_WideStringC& contents) {
CFX_WideString encodeContents =
static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter.get())
->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 = static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter.get())
->CalcChecksum(byteString);
encodeContents += FX_WCHAR(checksum - 0 + '0');
}
if (length > 8)
encodeContents = encodeContents.Mid(0, 8);
return encodeContents;
}
bool CBC_EAN8::Encode(const CFX_WideStringC& contents,
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.get())
->Encode(byteString, format, outWidth, outHeight, e);
BC_EXCEPTION_CHECK_ReturnValue(e, false);
static_cast<CBC_OneDimWriter*>(m_pBCWriter.get())
->RenderResult(encodeContents.AsStringC(), data, outWidth, isDevice, e);
FX_Free(data);
BC_EXCEPTION_CHECK_ReturnValue(e, false);
return true;
}
bool CBC_EAN8::RenderDevice(CFX_RenderDevice* device,
const CFX_Matrix* matrix,
int32_t& e) {
static_cast<CBC_OneDimWriter*>(m_pBCWriter.get())
->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e);
BC_EXCEPTION_CHECK_ReturnValue(e, false);
return true;
}
bool CBC_EAN8::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) {
static_cast<CBC_OneDimWriter*>(m_pBCWriter.get())
->RenderBitmapResult(pOutBitmap, m_renderContents.AsStringC(), e);
BC_EXCEPTION_CHECK_ReturnValue(e, false);
return true;
}
BC_TYPE CBC_EAN8::GetType() {
return BC_EAN8;
}
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