// 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 2009 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 "fxbarcode/oned/BC_OnedEAN13Writer.h"
#include <algorithm>
#include <cwctype>
#include <memory>
#include <vector>
#include "core/fxcrt/fx_extension.h"
#include "core/fxge/cfx_defaultrenderdevice.h"
#include "fxbarcode/BC_Writer.h"
#include "fxbarcode/oned/BC_OneDimWriter.h"
#include "fxbarcode/oned/BC_OnedEANChecksum.h"
namespace {
const int8_t kFirstDigitEncodings[10] = {0x00, 0x0B, 0x0D, 0xE, 0x13,
0x19, 0x1C, 0x15, 0x16, 0x1A};
const int8_t kOnedEAN13StartPattern[3] = {1, 1, 1};
const int8_t kOnedEAN13MiddlePattern[5] = {1, 1, 1, 1, 1};
const int8_t kOnedEAN13LPattern[10][4] = {
{3, 2, 1, 1}, {2, 2, 2, 1}, {2, 1, 2, 2}, {1, 4, 1, 1}, {1, 1, 3, 2},
{1, 2, 3, 1}, {1, 1, 1, 4}, {1, 3, 1, 2}, {1, 2, 1, 3}, {3, 1, 1, 2}};
const int8_t L_AND_G_PATTERNS[20][4] = {
{3, 2, 1, 1}, {2, 2, 2, 1}, {2, 1, 2, 2}, {1, 4, 1, 1}, {1, 1, 3, 2},
{1, 2, 3, 1}, {1, 1, 1, 4}, {1, 3, 1, 2}, {1, 2, 1, 3}, {3, 1, 1, 2},
{1, 1, 2, 3}, {1, 2, 2, 2}, {2, 2, 1, 2}, {1, 1, 4, 1}, {2, 3, 1, 1},
{1, 3, 2, 1}, {4, 1, 1, 1}, {2, 1, 3, 1}, {3, 1, 2, 1}, {2, 1, 1, 3}};
} // namespace
CBC_OnedEAN13Writer::CBC_OnedEAN13Writer() {
m_bLeftPadding = true;
m_codeWidth = 3 + (7 * 6) + 5 + (7 * 6) + 3;
}
CBC_OnedEAN13Writer::~CBC_OnedEAN13Writer() {}
bool CBC_OnedEAN13Writer::CheckContentValidity(const WideStringView& contents) {
return std::all_of(contents.begin(), contents.end(), std::iswdigit);
}
WideString CBC_OnedEAN13Writer::FilterContents(const WideStringView& contents) {
WideString filtercontents;
wchar_t ch;
for (size_t i = 0; i < contents.GetLength(); i++) {
ch = contents[i];
if (ch > 175) {
i++;
continue;
}
if (ch >= '0' && ch <= '9') {
filtercontents += ch;
}
}
return filtercontents;
}
int32_t CBC_OnedEAN13Writer::CalcChecksum(const ByteString& contents) {
return EANCalcChecksum(contents);
}
uint8_t* CBC_OnedEAN13Writer::EncodeWithHint(const ByteString& contents,
BCFORMAT format,
int32_t& outWidth,
int32_t& outHeight,
int32_t hints) {
if (format != BCFORMAT_EAN_13)
return nullptr;
return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight,
hints);
}
uint8_t* CBC_OnedEAN13Writer::EncodeImpl(const ByteString& contents,
int32_t& outLength) {
if (contents.GetLength() != 13)
return nullptr;
m_iDataLenth = 13;
int32_t firstDigit = FXSYS_DecimalCharToInt(contents.First());
int32_t parities = kFirstDigitEncodings[firstDigit];
outLength = m_codeWidth;
std::unique_ptr<uint8_t, FxFreeDeleter> result(
FX_Alloc(uint8_t, m_codeWidth));
int32_t pos = 0;
int32_t e = BCExceptionNO;
pos += AppendPattern(result.get(), pos, kOnedEAN13StartPattern, 3, 1, e);
if (e != BCExceptionNO)
return nullptr;
int32_t i = 0;
for (i = 1; i <= 6; i++) {
int32_t digit = FXSYS_DecimalCharToInt(contents[i]);
if ((parities >> (6 - i) & 1) == 1) {
digit += 10;
}
pos += AppendPattern(result.get(), pos, L_AND_G_PATTERNS[digit], 4, 0, e);
if (e != BCExceptionNO)
return nullptr;
}
pos += AppendPattern(result.get(), pos, kOnedEAN13MiddlePattern, 5, 0, e);
if (e != BCExceptionNO)
return nullptr;
for (i = 7; i <= 12; i++) {
int32_t digit = FXSYS_DecimalCharToInt(contents[i]);
pos += AppendPattern(result.get(), pos, kOnedEAN13LPattern[digit], 4, 1, e);
if (e != BCExceptionNO)
return nullptr;
}
pos += AppendPattern(result.get(), pos, kOnedEAN13StartPattern, 3, 1, e);
if (e != BCExceptionNO)
return nullptr;
return result.release();
}
bool CBC_OnedEAN13Writer::ShowChars(const WideStringView& contents,
CFX_RenderDevice* device,
const CFX_Matrix* matrix,
int32_t barWidth,
int32_t multiple) {
if (!device)
return false;
int32_t leftPadding = 7 * multiple;
int32_t leftPosition = 3 * multiple + leftPadding;
ByteString str = FX_UTF8Encode(contents);
int32_t iLen = str.GetLength();
std::vector<FXTEXT_CHARPOS> charpos(iLen);
int32_t iFontSize = (int32_t)fabs(m_fFontSize);
int32_t iTextHeight = iFontSize + 1;
ByteString tempStr = str.Mid(1, 6);
int32_t strWidth = multiple * 42;
CFX_Matrix matr(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
CFX_FloatRect rect((float)leftPosition, (float)(m_Height - iTextHeight),
(float)(leftPosition + strWidth - 0.5), (float)m_Height);
matr.Concat(*matrix);
FX_RECT re = matr.TransformRect(rect).GetOuterRect();
device->FillRect(&re, m_backgroundColor);
CFX_FloatRect rect1(
(float)(leftPosition + 47 * multiple), (float)(m_Height - iTextHeight),
(float)(leftPosition + 47 * multiple + strWidth - 0.5), (float)m_Height);
CFX_Matrix matr1(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
matr1.Concat(*matrix);
re = matr1.TransformRect(rect1).GetOuterRect();
device->FillRect(&re, m_backgroundColor);
int32_t strWidth1 = multiple * 7;
CFX_Matrix matr2(m_outputHScale, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f);
CFX_FloatRect rect2(0.0f, (float)(m_Height - iTextHeight),
(float)strWidth1 - 0.5f, (float)m_Height);
matr2.Concat(*matrix);
re = matr2.TransformRect(rect2).GetOuterRect();
device->FillRect(&re, m_backgroundColor);
float blank = 0.0;
iLen = tempStr.GetLength();
strWidth = (int32_t)(strWidth * m_outputHScale);
CalcTextInfo(tempStr, &charpos[1], m_pFont.Get(), (float)strWidth, iFontSize,
blank);
{
CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0,
(float)leftPosition * m_outputHScale,
(float)(m_Height - iTextHeight) + iFontSize);
if (matrix)
affine_matrix1.Concat(*matrix);
device->DrawNormalText(iLen, &charpos[1], m_pFont.Get(),
static_cast<float>(iFontSize), &affine_matrix1,
m_fontColor, FXTEXT_CLEARTYPE);
}
tempStr = str.Mid(7, 6);
iLen = tempStr.GetLength();
CalcTextInfo(tempStr, &charpos[7], m_pFont.Get(), (float)strWidth, iFontSize,
blank);
{
CFX_Matrix affine_matrix1(
1.0, 0.0, 0.0, -1.0,
(float)(leftPosition + 47 * multiple) * m_outputHScale,
(float)(m_Height - iTextHeight + iFontSize));
if (matrix)
affine_matrix1.Concat(*matrix);
device->DrawNormalText(iLen, &charpos[7], m_pFont.Get(),
static_cast<float>(iFontSize), &affine_matrix1,
m_fontColor, FXTEXT_CLEARTYPE);
}
tempStr = str.Left(1);
iLen = tempStr.GetLength();
strWidth = multiple * 7;
strWidth = (int32_t)(strWidth * m_outputHScale);
CalcTextInfo(tempStr, charpos.data(), m_pFont.Get(), (float)strWidth,
iFontSize, blank);
{
CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0, 0.0,
(float)(m_Height - iTextHeight + iFontSize));
if (matrix)
affine_matrix1.Concat(*matrix);
device->DrawNormalText(iLen, charpos.data(), m_pFont.Get(),
static_cast<float>(iFontSize), &affine_matrix1,
m_fontColor, FXTEXT_CLEARTYPE);
}
return true;
}