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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 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 "fxbarcode/oned/BC_OnedCodaBarWriter.h"
#include "fxbarcode/BC_Writer.h"
#include "fxbarcode/common/BC_CommonBitArray.h"
#include "fxbarcode/common/BC_CommonBitMatrix.h"
#include "fxbarcode/oned/BC_OneDimWriter.h"
#include "third_party/base/stl_util.h"
namespace {
const char kOnedCodaAlphabet[] = {'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', '-', '$', ':', '/', '.', '+',
'A', 'B', 'C', 'D', 'T', 'N'};
const int8_t kOnedCodaCharacterEncoding[] = {
0x03, 0x06, 0x09, 0x60, 0x12, 0x42, 0x21, 0x24, 0x30, 0x48, 0x0c,
0x18, 0x45, 0x51, 0x54, 0x15, 0x1A, 0x29, 0x0B, 0x0E, 0x1A, 0x29};
static_assert(FX_ArraySize(kOnedCodaCharacterEncoding) == 22, "Wrong size");
static_assert(FX_ArraySize(kOnedCodaCharacterEncoding) ==
FX_ArraySize(kOnedCodaAlphabet),
"Wrong size");
const char kStartEndChars[] = {'A', 'B', 'C', 'D', 'T', 'N', '*', 'E',
'a', 'b', 'c', 'd', 't', 'n', 'e'};
const char kCOntentChars[] = {'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', '-', '$', '/', ':', '+', '.'};
} // namespace
CBC_OnedCodaBarWriter::CBC_OnedCodaBarWriter()
: m_chStart('A'), m_chEnd('B'), m_iWideNarrRatio(2) {}
CBC_OnedCodaBarWriter::~CBC_OnedCodaBarWriter() {}
bool CBC_OnedCodaBarWriter::SetStartChar(char start) {
if (!pdfium::ContainsValue(kStartEndChars, start))
return false;
m_chStart = start;
return true;
}
bool CBC_OnedCodaBarWriter::SetEndChar(char end) {
if (!pdfium::ContainsValue(kStartEndChars, end))
return false;
m_chEnd = end;
return true;
}
void CBC_OnedCodaBarWriter::SetDataLength(int32_t length) {
m_iDataLenth = length + 2;
}
bool CBC_OnedCodaBarWriter::SetTextLocation(BC_TEXT_LOC location) {
if (location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) {
return false;
}
m_locTextLoc = location;
return true;
}
bool CBC_OnedCodaBarWriter::SetWideNarrowRatio(int8_t ratio) {
if (ratio < 2 || ratio > 3)
return false;
m_iWideNarrRatio = ratio;
return true;
}
bool CBC_OnedCodaBarWriter::FindChar(wchar_t ch, bool isContent) {
if (ch > 0x7F)
return false;
char narrow_ch = static_cast<char>(ch);
return pdfium::ContainsValue(kCOntentChars, narrow_ch) ||
(isContent && pdfium::ContainsValue(kStartEndChars, narrow_ch));
}
bool CBC_OnedCodaBarWriter::CheckContentValidity(
const WideStringView& contents) {
return std::all_of(
contents.begin(), contents.end(),
[this](const wchar_t& ch) { return this->FindChar(ch, false); });
}
WideString CBC_OnedCodaBarWriter::FilterContents(
const WideStringView& contents) {
WideString filtercontents;
wchar_t ch;
for (size_t index = 0; index < contents.GetLength(); index++) {
ch = contents[index];
if (ch > 175) {
index++;
continue;
}
if (!FindChar(ch, true))
continue;
filtercontents += ch;
}
return filtercontents;
}
uint8_t* CBC_OnedCodaBarWriter::EncodeWithHint(const ByteString& contents,
BCFORMAT format,
int32_t& outWidth,
int32_t& outHeight,
int32_t hints) {
if (format != BCFORMAT_CODABAR)
return nullptr;
return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight,
hints);
}
uint8_t* CBC_OnedCodaBarWriter::EncodeImpl(const ByteString& contents,
int32_t& outLength) {
ByteString data = m_chStart + contents + m_chEnd;
m_iContentLen = data.GetLength();
uint8_t* result = FX_Alloc2D(uint8_t, m_iWideNarrRatio * 7, data.GetLength());
char ch;
int32_t position = 0;
for (size_t index = 0; index < data.GetLength(); index++) {
ch = data[index];
if (((ch >= 'a') && (ch <= 'z'))) {
ch = ch - 32;
}
switch (ch) {
case 'T':
ch = 'A';
break;
case 'N':
ch = 'B';
break;
case '*':
ch = 'C';
break;
case 'E':
ch = 'D';
break;
default:
break;
}
int8_t code = 0;
for (size_t i = 0; i < FX_ArraySize(kOnedCodaAlphabet); i++) {
if (ch == kOnedCodaAlphabet[i]) {
code = kOnedCodaCharacterEncoding[i];
break;
}
}
uint8_t color = 1;
int32_t counter = 0;
int32_t bit = 0;
while (bit < 7) {
result[position] = color;
position++;
if (((code >> (6 - bit)) & 1) == 0 || counter == m_iWideNarrRatio - 1) {
color = !color;
bit++;
counter = 0;
} else {
counter++;
}
}
if (index < data.GetLength() - 1) {
result[position] = 0;
position++;
}
}
outLength = position;
return result;
}
WideString CBC_OnedCodaBarWriter::encodedContents(
const WideStringView& contents) {
WideString strStart(static_cast<wchar_t>(m_chStart));
WideString strEnd(static_cast<wchar_t>(m_chEnd));
return strStart + contents + strEnd;
}
bool CBC_OnedCodaBarWriter::RenderResult(const WideStringView& contents,
uint8_t* code,
int32_t codeLength) {
return CBC_OneDimWriter::RenderResult(
encodedContents(contents).AsStringView(), code, codeLength);
}
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