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// 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_OnedEAN8Writer.h"
#include <algorithm>
#include <cwctype>
#include <memory>
#include <vector>
#include "core/fxge/cfx_defaultrenderdevice.h"
#include "fxbarcode/BC_Writer.h"
#include "fxbarcode/common/BC_CommonBitMatrix.h"
#include "fxbarcode/oned/BC_OneDimWriter.h"
namespace {
const int8_t START_END_PATTERN[3] = {1, 1, 1};
const int8_t MIDDLE_PATTERN[5] = {1, 1, 1, 1, 1};
const int8_t L_PATTERNS[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;
m_codeWidth = 3 + (7 * 4) + 5 + (7 * 4) + 3;
}
CBC_OnedEAN8Writer::~CBC_OnedEAN8Writer() {}
void CBC_OnedEAN8Writer::SetDataLength(int32_t length) {
m_iDataLenth = 8;
}
bool CBC_OnedEAN8Writer::SetTextLocation(BC_TEXT_LOC location) {
if (location == BC_TEXT_LOC_BELOWEMBED) {
m_locTextLoc = location;
return true;
}
return false;
}
bool CBC_OnedEAN8Writer::CheckContentValidity(const CFX_WideStringC& contents) {
return std::all_of(contents.begin(), contents.end(), std::iswdigit);
}
CFX_WideString CBC_OnedEAN8Writer::FilterContents(
const CFX_WideStringC& contents) {
CFX_WideString filtercontents;
wchar_t ch;
for (FX_STRSIZE 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_OnedEAN8Writer::CalcChecksum(const CFX_ByteString& contents) {
int32_t odd = 0;
int32_t even = 0;
for (FX_STRSIZE i = contents.GetLength(); i > 0; i--) {
if (i % 2) {
odd += FXSYS_atoi(contents.Mid(i - 1, 1).c_str());
} else {
even += FXSYS_atoi(contents.Mid(i - 1, 1).c_str());
}
}
int32_t checksum = (odd * 3 + even) % 10;
checksum = (10 - checksum) % 10;
return checksum;
}
uint8_t* CBC_OnedEAN8Writer::EncodeWithHint(const CFX_ByteString& contents,
BCFORMAT format,
int32_t& outWidth,
int32_t& outHeight,
int32_t hints) {
if (format != BCFORMAT_EAN_8)
return nullptr;
return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight,
hints);
}
uint8_t* CBC_OnedEAN8Writer::EncodeImpl(const CFX_ByteString& contents,
int32_t& outLength) {
if (contents.GetLength() != 8)
return nullptr;
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, START_END_PATTERN, 3, 1, e);
if (e != BCExceptionNO)
return nullptr;
int32_t i = 0;
for (i = 0; i <= 3; i++) {
int32_t digit = FXSYS_atoi(contents.Mid(i, 1).c_str());
pos += AppendPattern(result.get(), pos, L_PATTERNS[digit], 4, 0, e);
if (e != BCExceptionNO)
return nullptr;
}
pos += AppendPattern(result.get(), pos, MIDDLE_PATTERN, 5, 0, e);
if (e != BCExceptionNO)
return nullptr;
for (i = 4; i <= 7; i++) {
int32_t digit = FXSYS_atoi(contents.Mid(i, 1).c_str());
pos += AppendPattern(result.get(), pos, L_PATTERNS[digit], 4, 1, e);
if (e != BCExceptionNO)
return nullptr;
}
pos += AppendPattern(result.get(), pos, START_END_PATTERN, 3, 1, e);
if (e != BCExceptionNO)
return nullptr;
return result.release();
}
bool CBC_OnedEAN8Writer::ShowChars(const CFX_WideStringC& contents,
CFX_RenderDevice* device,
const CFX_Matrix* matrix,
int32_t barWidth,
int32_t multiple) {
if (!device)
return false;
int32_t leftPosition = 3 * multiple;
CFX_ByteString str = FX_UTF8Encode(contents);
FX_STRSIZE iLength = str.GetLength();
std::vector<FXTEXT_CHARPOS> charpos(iLength);
CFX_ByteString tempStr = str.Left(4);
FX_STRSIZE iLen = tempStr.GetLength();
int32_t strWidth = 7 * multiple * 4;
float blank = 0.0;
int32_t iFontSize = (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((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_Matrix matr1(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
CFX_FloatRect rect1(
(float)(leftPosition + 33 * multiple), (float)(m_Height - iTextHeight),
(float)(leftPosition + 33 * multiple + strWidth - 0.5), (float)m_Height);
matr1.Concat(*matrix);
re = matr1.TransformRect(rect1).GetOuterRect();
device->FillRect(&re, m_backgroundColor);
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,
(float)leftPosition * m_outputHScale,
(float)(m_Height - iTextHeight + iFontSize));
affine_matrix1.Concat(*matrix);
device->DrawNormalText(iLen, charpos.data(), m_pFont.Get(),
static_cast<float>(iFontSize), &affine_matrix1,
m_fontColor, FXTEXT_CLEARTYPE);
}
tempStr = str.Mid(4, 4);
iLen = tempStr.GetLength();
CalcTextInfo(tempStr, &charpos[4], m_pFont.Get(), (float)strWidth, iFontSize,
blank);
{
CFX_Matrix affine_matrix1(
1.0, 0.0, 0.0, -1.0,
(float)(leftPosition + 33 * multiple) * m_outputHScale,
(float)(m_Height - iTextHeight + iFontSize));
if (matrix)
affine_matrix1.Concat(*matrix);
device->DrawNormalText(iLen, &charpos[4], m_pFont.Get(),
static_cast<float>(iFontSize), &affine_matrix1,
m_fontColor, FXTEXT_CLEARTYPE);
}
return true;
}
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