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217 lines
8.1 KiB
217 lines
8.1 KiB
// 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 2009 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 "fxbarcode/oned/BC_OnedEAN13Writer.h"
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#include <algorithm>
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#include <cwctype>
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#include <memory>
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#include <vector>
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#include "core/fxcrt/fx_extension.h"
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#include "core/fxcrt/fx_memory_wrappers.h"
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#include "core/fxge/cfx_defaultrenderdevice.h"
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#include "core/fxge/text_char_pos.h"
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#include "fxbarcode/BC_Writer.h"
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#include "fxbarcode/oned/BC_OneDimWriter.h"
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#include "fxbarcode/oned/BC_OnedEANChecksum.h"
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namespace {
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const int8_t kFirstDigitEncodings[10] = {0x00, 0x0B, 0x0D, 0xE, 0x13,
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0x19, 0x1C, 0x15, 0x16, 0x1A};
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const int8_t kOnedEAN13StartPattern[3] = {1, 1, 1};
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const int8_t kOnedEAN13MiddlePattern[5] = {1, 1, 1, 1, 1};
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const int8_t kOnedEAN13LPattern[10][4] = {
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{3, 2, 1, 1}, {2, 2, 2, 1}, {2, 1, 2, 2}, {1, 4, 1, 1}, {1, 1, 3, 2},
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{1, 2, 3, 1}, {1, 1, 1, 4}, {1, 3, 1, 2}, {1, 2, 1, 3}, {3, 1, 1, 2}};
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const int8_t L_AND_G_PATTERNS[20][4] = {
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{3, 2, 1, 1}, {2, 2, 2, 1}, {2, 1, 2, 2}, {1, 4, 1, 1}, {1, 1, 3, 2},
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{1, 2, 3, 1}, {1, 1, 1, 4}, {1, 3, 1, 2}, {1, 2, 1, 3}, {3, 1, 1, 2},
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{1, 1, 2, 3}, {1, 2, 2, 2}, {2, 2, 1, 2}, {1, 1, 4, 1}, {2, 3, 1, 1},
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{1, 3, 2, 1}, {4, 1, 1, 1}, {2, 1, 3, 1}, {3, 1, 2, 1}, {2, 1, 1, 3}};
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} // namespace
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CBC_OnedEAN13Writer::CBC_OnedEAN13Writer() {
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m_bLeftPadding = true;
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m_codeWidth = 3 + (7 * 6) + 5 + (7 * 6) + 3;
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}
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CBC_OnedEAN13Writer::~CBC_OnedEAN13Writer() {}
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bool CBC_OnedEAN13Writer::CheckContentValidity(WideStringView contents) {
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return std::all_of(contents.begin(), contents.end(),
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[](wchar_t c) { return FXSYS_IsDecimalDigit(c); });
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}
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WideString CBC_OnedEAN13Writer::FilterContents(WideStringView contents) {
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WideString filtercontents;
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filtercontents.Reserve(contents.GetLength());
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wchar_t ch;
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for (size_t i = 0; i < contents.GetLength(); i++) {
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ch = contents[i];
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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 (FXSYS_IsDecimalDigit(ch))
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filtercontents += ch;
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}
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return filtercontents;
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}
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int32_t CBC_OnedEAN13Writer::CalcChecksum(const ByteString& contents) {
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return EANCalcChecksum(contents);
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}
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uint8_t* CBC_OnedEAN13Writer::EncodeWithHint(const 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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if (format != BCFORMAT_EAN_13)
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return nullptr;
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return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight,
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hints);
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}
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uint8_t* CBC_OnedEAN13Writer::EncodeImpl(const ByteString& contents,
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int32_t& outLength) {
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if (contents.GetLength() != 13)
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return nullptr;
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m_iDataLenth = 13;
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int32_t firstDigit = FXSYS_DecimalCharToInt(contents.Front());
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int32_t parities = kFirstDigitEncodings[firstDigit];
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outLength = m_codeWidth;
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std::unique_ptr<uint8_t, FxFreeDeleter> result(
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FX_Alloc(uint8_t, m_codeWidth));
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int32_t pos = 0;
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pos += AppendPattern(result.get(), pos, kOnedEAN13StartPattern, 3, true);
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int32_t i = 0;
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for (i = 1; i <= 6; i++) {
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int32_t digit = FXSYS_DecimalCharToInt(contents[i]);
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if ((parities >> (6 - i) & 1) == 1) {
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digit += 10;
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}
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pos += AppendPattern(result.get(), pos, L_AND_G_PATTERNS[digit], 4, false);
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}
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pos += AppendPattern(result.get(), pos, kOnedEAN13MiddlePattern, 5, false);
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for (i = 7; i <= 12; i++) {
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int32_t digit = FXSYS_DecimalCharToInt(contents[i]);
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pos += AppendPattern(result.get(), pos, kOnedEAN13LPattern[digit], 4, true);
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}
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pos += AppendPattern(result.get(), pos, kOnedEAN13StartPattern, 3, true);
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return result.release();
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}
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bool CBC_OnedEAN13Writer::ShowChars(WideStringView contents,
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CFX_RenderDevice* device,
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const CFX_Matrix* matrix,
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int32_t barWidth,
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int32_t multiple) {
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if (!device)
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return false;
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int32_t leftPadding = 7 * multiple;
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int32_t leftPosition = 3 * multiple + leftPadding;
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ByteString str = FX_UTF8Encode(contents);
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size_t length = str.GetLength();
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std::vector<TextCharPos> charpos(length);
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int32_t iFontSize = (int32_t)fabs(m_fFontSize);
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int32_t iTextHeight = iFontSize + 1;
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ByteString tempStr = str.Substr(1, 6);
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int32_t strWidth = multiple * 42;
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CFX_Matrix matr(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
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CFX_FloatRect rect((float)leftPosition, (float)(m_Height - iTextHeight),
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(float)(leftPosition + strWidth - 0.5), (float)m_Height);
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matr.Concat(*matrix);
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FX_RECT re = matr.TransformRect(rect).GetOuterRect();
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device->FillRect(re, kBackgroundColor);
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CFX_FloatRect rect1(
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(float)(leftPosition + 47 * multiple), (float)(m_Height - iTextHeight),
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(float)(leftPosition + 47 * multiple + strWidth - 0.5), (float)m_Height);
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CFX_Matrix matr1(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
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matr1.Concat(*matrix);
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re = matr1.TransformRect(rect1).GetOuterRect();
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device->FillRect(re, kBackgroundColor);
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int32_t strWidth1 = multiple * 7;
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CFX_Matrix matr2(m_outputHScale, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f);
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CFX_FloatRect rect2(0.0f, (float)(m_Height - iTextHeight),
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(float)strWidth1 - 0.5f, (float)m_Height);
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matr2.Concat(*matrix);
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re = matr2.TransformRect(rect2).GetOuterRect();
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device->FillRect(re, kBackgroundColor);
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float blank = 0.0;
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length = tempStr.GetLength();
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strWidth = (int32_t)(strWidth * m_outputHScale);
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CalcTextInfo(tempStr, &charpos[1], m_pFont.Get(), (float)strWidth, iFontSize,
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blank);
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{
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CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0,
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(float)leftPosition * m_outputHScale,
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(float)(m_Height - iTextHeight) + iFontSize);
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if (matrix)
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affine_matrix1.Concat(*matrix);
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device->DrawNormalText(length, &charpos[1], m_pFont.Get(),
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static_cast<float>(iFontSize), affine_matrix1,
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m_fontColor, FXTEXT_CLEARTYPE);
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}
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tempStr = str.Substr(7, 6);
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length = tempStr.GetLength();
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CalcTextInfo(tempStr, &charpos[7], m_pFont.Get(), (float)strWidth, iFontSize,
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blank);
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{
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CFX_Matrix affine_matrix1(
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1.0, 0.0, 0.0, -1.0,
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(float)(leftPosition + 47 * multiple) * m_outputHScale,
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(float)(m_Height - iTextHeight + iFontSize));
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if (matrix)
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affine_matrix1.Concat(*matrix);
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device->DrawNormalText(length, &charpos[7], m_pFont.Get(),
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static_cast<float>(iFontSize), affine_matrix1,
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m_fontColor, FXTEXT_CLEARTYPE);
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}
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tempStr = str.First(1);
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length = tempStr.GetLength();
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strWidth = multiple * 7;
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strWidth = (int32_t)(strWidth * m_outputHScale);
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CalcTextInfo(tempStr, charpos.data(), m_pFont.Get(), (float)strWidth,
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iFontSize, blank);
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{
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CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0, 0.0,
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(float)(m_Height - iTextHeight + iFontSize));
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if (matrix)
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affine_matrix1.Concat(*matrix);
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device->DrawNormalText(length, charpos.data(), m_pFont.Get(),
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static_cast<float>(iFontSize), affine_matrix1,
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m_fontColor, FXTEXT_CLEARTYPE);
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}
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return true;
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}
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