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PL286/external/pdfium/xfa/fxbarcode/oned/BC_OnedCode39Writer.cpp

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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 2010 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/BC_Writer.h"
#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
#include "xfa/fxbarcode/oned/BC_OneDimWriter.h"
#include "xfa/fxbarcode/oned/BC_OnedCode39Writer.h"
namespace {
const FX_CHAR ALPHABET_STRING[] =
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%";
const FX_CHAR CHECKSUM_STRING[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%";
const int32_t CHARACTER_ENCODINGS[44] = {
0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124,
0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C,
0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007,
0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0,
0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A};
} // namespace
CBC_OnedCode39Writer::CBC_OnedCode39Writer() {
m_iWideNarrRatio = 3;
}
CBC_OnedCode39Writer::~CBC_OnedCode39Writer() {}
bool CBC_OnedCode39Writer::CheckContentValidity(
const CFX_WideStringC& contents) {
for (int32_t i = 0; i < contents.GetLength(); i++) {
FX_WCHAR ch = contents.GetAt(i);
if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') ||
(ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') || ch == (FX_WCHAR)'-' ||
ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' ||
ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' ||
ch == (FX_WCHAR)'%') {
continue;
}
return false;
}
return true;
}
CFX_WideString CBC_OnedCode39Writer::FilterContents(
const CFX_WideStringC& contents) {
CFX_WideString filtercontents;
for (int32_t i = 0; i < contents.GetLength(); i++) {
FX_WCHAR ch = contents.GetAt(i);
if (ch == (FX_WCHAR)'*' && (i == 0 || i == contents.GetLength() - 1)) {
continue;
}
if (ch > 175) {
i++;
continue;
} else {
ch = Upper(ch);
}
if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') ||
(ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') || ch == (FX_WCHAR)'-' ||
ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' ||
ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' ||
ch == (FX_WCHAR)'%') {
filtercontents += ch;
}
}
return filtercontents;
}
CFX_WideString CBC_OnedCode39Writer::RenderTextContents(
const CFX_WideStringC& contents) {
CFX_WideString renderContents;
for (int32_t i = 0; i < contents.GetLength(); i++) {
FX_WCHAR ch = contents.GetAt(i);
if (ch == (FX_WCHAR)'*' && (i == 0 || i == contents.GetLength() - 1)) {
continue;
}
if (ch > 175) {
i++;
continue;
}
if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') ||
(ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') ||
(ch >= (FX_WCHAR)'a' && ch <= (FX_WCHAR)'z') || ch == (FX_WCHAR)'-' ||
ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' ||
ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' ||
ch == (FX_WCHAR)'%') {
renderContents += ch;
}
}
return renderContents;
}
bool CBC_OnedCode39Writer::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_OnedCode39Writer::SetWideNarrowRatio(int32_t ratio) {
if (ratio < 2 || ratio > 3) {
return false;
}
m_iWideNarrRatio = ratio;
return true;
}
uint8_t* CBC_OnedCode39Writer::Encode(const CFX_ByteString& contents,
BCFORMAT format,
int32_t& outWidth,
int32_t& outHeight,
int32_t& e) {
uint8_t* ret = Encode(contents, format, outWidth, outHeight, 0, e);
if (e != BCExceptionNO)
return nullptr;
return ret;
}
uint8_t* CBC_OnedCode39Writer::Encode(const CFX_ByteString& contents,
BCFORMAT format,
int32_t& outWidth,
int32_t& outHeight,
int32_t hints,
int32_t& e) {
if (format != BCFORMAT_CODE_39) {
e = BCExceptionOnlyEncodeCODE_39;
return nullptr;
}
uint8_t* ret =
CBC_OneDimWriter::Encode(contents, format, outWidth, outHeight, hints, e);
if (e != BCExceptionNO)
return nullptr;
return ret;
}
void CBC_OnedCode39Writer::ToIntArray(int32_t a, int32_t* toReturn) {
for (int32_t i = 0; i < 9; i++) {
toReturn[i] = (a & (1 << i)) == 0 ? 1 : m_iWideNarrRatio;
}
}
FX_CHAR CBC_OnedCode39Writer::CalcCheckSum(const CFX_ByteString& contents,
int32_t& e) {
int32_t length = contents.GetLength();
if (length > 80) {
e = BCExceptionContentsLengthShouldBetween1and80;
return '*';
}
int32_t checksum = 0;
int32_t len = (int32_t)strlen(ALPHABET_STRING);
for (int32_t i = 0; i < contents.GetLength(); i++) {
int32_t j = 0;
for (; j < len; j++) {
if (ALPHABET_STRING[j] == contents[i]) {
if (contents[i] != '*') {
checksum += j;
break;
} else {
break;
}
}
}
if (j >= len) {
e = BCExceptionUnSupportedString;
return '*';
}
}
checksum = checksum % 43;
return CHECKSUM_STRING[checksum];
}
uint8_t* CBC_OnedCode39Writer::Encode(const CFX_ByteString& contents,
int32_t& outlength,
int32_t& e) {
FX_CHAR checksum = CalcCheckSum(contents, e);
if (checksum == '*') {
return nullptr;
}
int32_t widths[9] = {0};
int32_t wideStrideNum = 3;
int32_t narrStrideNum = 9 - wideStrideNum;
CFX_ByteString encodedContents = contents;
if (m_bCalcChecksum) {
encodedContents += checksum;
}
m_iContentLen = encodedContents.GetLength();
int32_t codeWidth = (wideStrideNum * m_iWideNarrRatio + narrStrideNum) * 2 +
1 + m_iContentLen;
int32_t len = (int32_t)strlen(ALPHABET_STRING);
for (int32_t j = 0; j < m_iContentLen; j++) {
for (int32_t i = 0; i < len; i++) {
if (ALPHABET_STRING[i] == encodedContents[j]) {
ToIntArray(CHARACTER_ENCODINGS[i], widths);
for (int32_t k = 0; k < 9; k++) {
codeWidth += widths[k];
}
}
}
}
outlength = codeWidth;
uint8_t* result = FX_Alloc(uint8_t, codeWidth);
ToIntArray(CHARACTER_ENCODINGS[39], widths);
int32_t pos = AppendPattern(result, 0, widths, 9, 1, e);
if (e != BCExceptionNO) {
FX_Free(result);
return nullptr;
}
int32_t narrowWhite[] = {1};
pos += AppendPattern(result, pos, narrowWhite, 1, 0, e);
if (e != BCExceptionNO) {
FX_Free(result);
return nullptr;
}
for (int32_t l = m_iContentLen - 1; l >= 0; l--) {
for (int32_t i = 0; i < len; i++) {
if (ALPHABET_STRING[i] == encodedContents[l]) {
ToIntArray(CHARACTER_ENCODINGS[i], widths);
pos += AppendPattern(result, pos, widths, 9, 1, e);
if (e != BCExceptionNO) {
FX_Free(result);
return nullptr;
}
}
}
pos += AppendPattern(result, pos, narrowWhite, 1, 0, e);
if (e != BCExceptionNO) {
FX_Free(result);
return nullptr;
}
}
ToIntArray(CHARACTER_ENCODINGS[39], widths);
pos += AppendPattern(result, pos, widths, 9, 1, e);
if (e != BCExceptionNO) {
FX_Free(result);
return nullptr;
}
for (int32_t i = 0; i < codeWidth / 2; i++) {
result[i] ^= result[codeWidth - 1 - i];
result[codeWidth - 1 - i] ^= result[i];
result[i] ^= result[codeWidth - 1 - i];
}
return result;
}
CFX_WideString CBC_OnedCode39Writer::encodedContents(
const CFX_WideStringC& contents,
int32_t& e) {
CFX_WideString encodedContents(contents);
if (m_bCalcChecksum && m_bPrintChecksum) {
CFX_WideString checksumContent = FilterContents(contents);
CFX_ByteString str = checksumContent.UTF8Encode();
FX_CHAR checksum;
checksum = CalcCheckSum(str, e);
if (e != BCExceptionNO)
return CFX_WideString();
str += checksum;
encodedContents += checksum;
}
return encodedContents;
}
void CBC_OnedCode39Writer::RenderResult(const CFX_WideStringC& contents,
uint8_t* code,
int32_t codeLength,
bool isDevice,
int32_t& e) {
CFX_WideString encodedCon = encodedContents(contents, e);
if (e != BCExceptionNO)
return;
CBC_OneDimWriter::RenderResult(encodedCon.AsStringC(), code, codeLength,
isDevice, e);
}