// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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// Original code is licensed as follows:
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/*
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* Copyright 2010 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "xfa/fxbarcode/BC_Writer.h"
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#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
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#include "xfa/fxbarcode/oned/BC_OneDimWriter.h"
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#include "xfa/fxbarcode/oned/BC_OnedCode39Writer.h"
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namespace {
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const FX_CHAR ALPHABET_STRING[] =
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"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%";
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const FX_CHAR CHECKSUM_STRING[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%";
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const int32_t CHARACTER_ENCODINGS[44] = {
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0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124,
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0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C,
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0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007,
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0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0,
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0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A};
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} // namespace
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CBC_OnedCode39Writer::CBC_OnedCode39Writer() {
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m_iWideNarrRatio = 3;
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}
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CBC_OnedCode39Writer::~CBC_OnedCode39Writer() {}
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FX_BOOL CBC_OnedCode39Writer::CheckContentValidity(
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const CFX_WideStringC& contents) {
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for (int32_t i = 0; i < contents.GetLength(); i++) {
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FX_WCHAR ch = contents.GetAt(i);
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if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') ||
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(ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') || ch == (FX_WCHAR)'-' ||
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ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' ||
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ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' ||
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ch == (FX_WCHAR)'%') {
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continue;
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}
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return FALSE;
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}
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return TRUE;
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}
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CFX_WideString CBC_OnedCode39Writer::FilterContents(
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const CFX_WideStringC& contents) {
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CFX_WideString filtercontents;
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for (int32_t i = 0; i < contents.GetLength(); i++) {
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FX_WCHAR ch = contents.GetAt(i);
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if (ch == (FX_WCHAR)'*' && (i == 0 || i == contents.GetLength() - 1)) {
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continue;
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}
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if (ch > 175) {
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i++;
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continue;
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} else {
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ch = Upper(ch);
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}
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if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') ||
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(ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') || ch == (FX_WCHAR)'-' ||
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ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' ||
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ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' ||
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ch == (FX_WCHAR)'%') {
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filtercontents += ch;
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}
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}
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return filtercontents;
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}
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CFX_WideString CBC_OnedCode39Writer::RenderTextContents(
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const CFX_WideStringC& contents) {
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CFX_WideString renderContents;
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for (int32_t i = 0; i < contents.GetLength(); i++) {
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FX_WCHAR ch = contents.GetAt(i);
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if (ch == (FX_WCHAR)'*' && (i == 0 || i == contents.GetLength() - 1)) {
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continue;
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}
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if (ch > 175) {
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i++;
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continue;
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}
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if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') ||
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(ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') ||
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(ch >= (FX_WCHAR)'a' && ch <= (FX_WCHAR)'z') || ch == (FX_WCHAR)'-' ||
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ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' ||
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ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' ||
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ch == (FX_WCHAR)'%') {
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renderContents += ch;
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}
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}
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return renderContents;
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}
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FX_BOOL CBC_OnedCode39Writer::SetTextLocation(BC_TEXT_LOC location) {
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if (location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) {
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return FALSE;
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}
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m_locTextLoc = location;
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return TRUE;
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}
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FX_BOOL CBC_OnedCode39Writer::SetWideNarrowRatio(int32_t ratio) {
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if (ratio < 2 || ratio > 3) {
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return FALSE;
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}
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m_iWideNarrRatio = ratio;
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return TRUE;
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}
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uint8_t* CBC_OnedCode39Writer::Encode(const CFX_ByteString& contents,
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BCFORMAT format,
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int32_t& outWidth,
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int32_t& outHeight,
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int32_t& e) {
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uint8_t* ret = Encode(contents, format, outWidth, outHeight, 0, e);
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BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
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return ret;
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}
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uint8_t* CBC_OnedCode39Writer::Encode(const CFX_ByteString& contents,
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BCFORMAT format,
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int32_t& outWidth,
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int32_t& outHeight,
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int32_t hints,
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int32_t& e) {
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if (format != BCFORMAT_CODE_39) {
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e = BCExceptionOnlyEncodeCODE_39;
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return nullptr;
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}
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uint8_t* ret =
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CBC_OneDimWriter::Encode(contents, format, outWidth, outHeight, hints, e);
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BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
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return ret;
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}
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void CBC_OnedCode39Writer::ToIntArray(int32_t a, int32_t* toReturn) {
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for (int32_t i = 0; i < 9; i++) {
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toReturn[i] = (a & (1 << i)) == 0 ? 1 : m_iWideNarrRatio;
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}
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}
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FX_CHAR CBC_OnedCode39Writer::CalcCheckSum(const CFX_ByteString& contents,
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int32_t& e) {
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int32_t length = contents.GetLength();
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if (length > 80) {
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e = BCExceptionContentsLengthShouldBetween1and80;
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return '*';
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}
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int32_t checksum = 0;
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int32_t len = (int32_t)strlen(ALPHABET_STRING);
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for (int32_t i = 0; i < contents.GetLength(); i++) {
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int32_t j = 0;
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for (; j < len; j++) {
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if (ALPHABET_STRING[j] == contents[i]) {
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if (contents[i] != '*') {
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checksum += j;
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break;
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} else {
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break;
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}
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}
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}
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if (j >= len) {
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e = BCExceptionUnSupportedString;
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return '*';
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}
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}
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checksum = checksum % 43;
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return CHECKSUM_STRING[checksum];
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}
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uint8_t* CBC_OnedCode39Writer::Encode(const CFX_ByteString& contents,
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int32_t& outlength,
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int32_t& e) {
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FX_CHAR checksum = CalcCheckSum(contents, e);
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if (checksum == '*') {
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return nullptr;
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}
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int32_t widths[9] = {0};
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int32_t wideStrideNum = 3;
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int32_t narrStrideNum = 9 - wideStrideNum;
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CFX_ByteString encodedContents = contents;
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if (m_bCalcChecksum) {
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encodedContents += checksum;
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}
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m_iContentLen = encodedContents.GetLength();
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int32_t codeWidth = (wideStrideNum * m_iWideNarrRatio + narrStrideNum) * 2 +
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1 + m_iContentLen;
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int32_t len = (int32_t)strlen(ALPHABET_STRING);
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for (int32_t j = 0; j < m_iContentLen; j++) {
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for (int32_t i = 0; i < len; i++) {
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if (ALPHABET_STRING[i] == encodedContents[j]) {
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ToIntArray(CHARACTER_ENCODINGS[i], widths);
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for (int32_t k = 0; k < 9; k++) {
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codeWidth += widths[k];
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}
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}
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}
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}
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outlength = codeWidth;
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uint8_t* result = FX_Alloc(uint8_t, codeWidth);
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ToIntArray(CHARACTER_ENCODINGS[39], widths);
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int32_t pos = AppendPattern(result, 0, widths, 9, 1, e);
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if (e != BCExceptionNO) {
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FX_Free(result);
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return nullptr;
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}
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int32_t narrowWhite[] = {1};
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pos += AppendPattern(result, pos, narrowWhite, 1, 0, e);
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if (e != BCExceptionNO) {
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FX_Free(result);
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return nullptr;
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}
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for (int32_t l = m_iContentLen - 1; l >= 0; l--) {
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for (int32_t i = 0; i < len; i++) {
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if (ALPHABET_STRING[i] == encodedContents[l]) {
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ToIntArray(CHARACTER_ENCODINGS[i], widths);
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pos += AppendPattern(result, pos, widths, 9, 1, e);
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if (e != BCExceptionNO) {
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FX_Free(result);
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return nullptr;
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}
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}
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}
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pos += AppendPattern(result, pos, narrowWhite, 1, 0, e);
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if (e != BCExceptionNO) {
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FX_Free(result);
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return nullptr;
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}
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}
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ToIntArray(CHARACTER_ENCODINGS[39], widths);
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pos += AppendPattern(result, pos, widths, 9, 1, e);
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if (e != BCExceptionNO) {
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FX_Free(result);
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return nullptr;
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}
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for (int32_t i = 0; i < codeWidth / 2; i++) {
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result[i] ^= result[codeWidth - 1 - i];
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result[codeWidth - 1 - i] ^= result[i];
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result[i] ^= result[codeWidth - 1 - i];
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}
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return result;
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}
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CFX_WideString CBC_OnedCode39Writer::encodedContents(
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const CFX_WideStringC& contents,
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int32_t& e) {
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CFX_WideString encodedContents(contents);
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if (m_bCalcChecksum && m_bPrintChecksum) {
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CFX_WideString checksumContent = FilterContents(contents);
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CFX_ByteString str = checksumContent.UTF8Encode();
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FX_CHAR checksum;
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checksum = CalcCheckSum(str, e);
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BC_EXCEPTION_CHECK_ReturnValue(e, CFX_WideString());
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str += checksum;
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encodedContents += checksum;
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}
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return encodedContents;
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}
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void CBC_OnedCode39Writer::RenderResult(const CFX_WideStringC& contents,
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uint8_t* code,
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int32_t codeLength,
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FX_BOOL isDevice,
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int32_t& e) {
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CFX_WideString encodedCon = encodedContents(contents, e);
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BC_EXCEPTION_CHECK_ReturnVoid(e);
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CBC_OneDimWriter::RenderResult(encodedCon.AsStringC(), code, codeLength,
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isDevice, e);
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}
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