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// Copyright 2014 The PDFium Authors
// 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_OnedEAN8Writer.h"
#include <math.h>
#include <algorithm>
#include <memory>
#include <vector>
#include "core/fxcrt/fx_extension.h"
#include "core/fxcrt/fx_memory_wrappers.h"
#include "core/fxge/cfx_defaultrenderdevice.h"
#include "core/fxge/text_char_pos.h"
#include "fxbarcode/BC_Writer.h"
#include "fxbarcode/common/BC_CommonBitMatrix.h"
#include "fxbarcode/oned/BC_OneDimWriter.h"
#include "fxbarcode/oned/BC_OnedEANChecksum.h"
namespace {
const uint8_t kOnedEAN8StartPattern[3] = {1, 1, 1};
const uint8_t kOnedEAN8MiddlePattern[5] = {1, 1, 1, 1, 1};
const uint8_t kOnedEAN8LPattern[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}};
} // namespace
CBC_OnedEAN8Writer::CBC_OnedEAN8Writer() {
m_iDataLenth = 8;
}
CBC_OnedEAN8Writer::~CBC_OnedEAN8Writer() = default;
void CBC_OnedEAN8Writer::SetDataLength(int32_t length) {
m_iDataLenth = 8;
}
void CBC_OnedEAN8Writer::SetTextLocation(BC_TEXT_LOC location) {
if (location == BC_TEXT_LOC::kBelowEmbed)
m_locTextLoc = location;
}
bool CBC_OnedEAN8Writer::CheckContentValidity(WideStringView contents) {
return HasValidContentSize(contents) &&
std::all_of(contents.begin(), contents.end(),
[](wchar_t c) { return FXSYS_IsDecimalDigit(c); });
}
WideString CBC_OnedEAN8Writer::FilterContents(WideStringView contents) {
WideString filtercontents;
filtercontents.Reserve(contents.GetLength());
wchar_t ch;
for (size_t i = 0; i < contents.GetLength(); i++) {
ch = contents[i];
if (ch > 175) {
i++;
continue;
}
if (FXSYS_IsDecimalDigit(ch))
filtercontents += ch;
}
return filtercontents;
}
int32_t CBC_OnedEAN8Writer::CalcChecksum(const ByteString& contents) {
return EANCalcChecksum(contents);
}
DataVector<uint8_t> CBC_OnedEAN8Writer::Encode(const ByteString& contents) {
if (contents.GetLength() != 8)
return {};
DataVector<uint8_t> result(m_codeWidth);
auto result_span = pdfium::make_span(result);
result_span = AppendPattern(result_span, kOnedEAN8StartPattern, true);
for (int i = 0; i <= 3; i++) {
int32_t digit = FXSYS_DecimalCharToInt(contents[i]);
result_span = AppendPattern(result_span, kOnedEAN8LPattern[digit], false);
}
result_span = AppendPattern(result_span, kOnedEAN8MiddlePattern, false);
for (int i = 4; i <= 7; i++) {
int32_t digit = FXSYS_DecimalCharToInt(contents[i]);
result_span = AppendPattern(result_span, kOnedEAN8LPattern[digit], true);
}
AppendPattern(result_span, kOnedEAN8StartPattern, true);
return result;
}
bool CBC_OnedEAN8Writer::ShowChars(WideStringView contents,
CFX_RenderDevice* device,
const CFX_Matrix& matrix,
int32_t barWidth) {
if (!device)
return false;
constexpr float kLeftPosition = 3.0f;
ByteString str = FX_UTF8Encode(contents);
size_t iLength = str.GetLength();
std::vector<TextCharPos> charpos(iLength);
ByteString tempStr = str.First(4);
size_t iLen = tempStr.GetLength();
constexpr int32_t kWidth = 28;
float blank = 0.0f;
int32_t iFontSize = static_cast<int32_t>(fabs(m_fFontSize));
int32_t iTextHeight = iFontSize + 1;
CFX_Matrix matr(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
CFX_FloatRect rect(kLeftPosition, (float)(m_Height - iTextHeight),
kLeftPosition + kWidth - 0.5, (float)m_Height);
matr.Concat(matrix);
FX_RECT re = matr.TransformRect(rect).GetOuterRect();
device->FillRect(re, kBackgroundColor);
CFX_Matrix matr1(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
CFX_FloatRect rect1(kLeftPosition + 33, (float)(m_Height - iTextHeight),
kLeftPosition + 33 + kWidth - 0.5, (float)m_Height);
matr1.Concat(matrix);
re = matr1.TransformRect(rect1).GetOuterRect();
device->FillRect(re, kBackgroundColor);
int32_t strWidth = static_cast<int32_t>(kWidth * m_outputHScale);
CalcTextInfo(tempStr, charpos.data(), m_pFont, (float)strWidth, iFontSize,
blank);
{
CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0,
kLeftPosition * m_outputHScale,
(float)(m_Height - iTextHeight + iFontSize));
affine_matrix1.Concat(matrix);
device->DrawNormalText(pdfium::make_span(charpos).first(iLen), m_pFont,
static_cast<float>(iFontSize), affine_matrix1,
m_fontColor, GetTextRenderOptions());
}
tempStr = str.Substr(4, 4);
iLen = tempStr.GetLength();
CalcTextInfo(tempStr, &charpos[4], m_pFont, (float)strWidth, iFontSize,
blank);
{
CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0,
(kLeftPosition + 33) * m_outputHScale,
(float)(m_Height - iTextHeight + iFontSize));
affine_matrix1.Concat(matrix);
device->DrawNormalText(pdfium::make_span(charpos).subspan(4, iLen), m_pFont,
static_cast<float>(iFontSize), affine_matrix1,
m_fontColor, GetTextRenderOptions());
}
return true;
}