| // Copyright 2014 The PDFium Authors |
| // 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_OnedEAN13Writer.h" |
| |
| #include <math.h> |
| |
| #include <algorithm> |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxcrt/fx_extension.h" |
| #include "core/fxcrt/fx_memory_wrappers.h" |
| #include "core/fxge/cfx_defaultrenderdevice.h" |
| #include "core/fxge/text_char_pos.h" |
| #include "fxbarcode/BC_Writer.h" |
| #include "fxbarcode/oned/BC_OneDimWriter.h" |
| #include "fxbarcode/oned/BC_OnedEANChecksum.h" |
| |
| namespace { |
| |
| const int8_t kFirstDigitEncodings[10] = {0x00, 0x0B, 0x0D, 0xE, 0x13, |
| 0x19, 0x1C, 0x15, 0x16, 0x1A}; |
| const int8_t kOnedEAN13StartPattern[3] = {1, 1, 1}; |
| const int8_t kOnedEAN13MiddlePattern[5] = {1, 1, 1, 1, 1}; |
| const int8_t kOnedEAN13LPattern[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}}; |
| const int8_t L_AND_G_PATTERNS[20][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}, |
| {1, 1, 2, 3}, {1, 2, 2, 2}, {2, 2, 1, 2}, {1, 1, 4, 1}, {2, 3, 1, 1}, |
| {1, 3, 2, 1}, {4, 1, 1, 1}, {2, 1, 3, 1}, {3, 1, 2, 1}, {2, 1, 1, 3}}; |
| |
| } // namespace |
| |
| CBC_OnedEAN13Writer::CBC_OnedEAN13Writer() { |
| m_bLeftPadding = true; |
| m_codeWidth = 3 + (7 * 6) + 5 + (7 * 6) + 3; |
| } |
| CBC_OnedEAN13Writer::~CBC_OnedEAN13Writer() = default; |
| |
| bool CBC_OnedEAN13Writer::CheckContentValidity(WideStringView contents) { |
| return HasValidContentSize(contents) && |
| std::all_of(contents.begin(), contents.end(), |
| [](wchar_t c) { return FXSYS_IsDecimalDigit(c); }); |
| } |
| |
| WideString CBC_OnedEAN13Writer::FilterContents(WideStringView contents) { |
| WideString filtercontents; |
| filtercontents.Reserve(contents.GetLength()); |
| wchar_t ch; |
| for (size_t i = 0; i < contents.GetLength(); i++) { |
| ch = contents[i]; |
| if (ch > 175) { |
| i++; |
| continue; |
| } |
| if (FXSYS_IsDecimalDigit(ch)) |
| filtercontents += ch; |
| } |
| return filtercontents; |
| } |
| |
| int32_t CBC_OnedEAN13Writer::CalcChecksum(const ByteString& contents) { |
| return EANCalcChecksum(contents); |
| } |
| |
| DataVector<uint8_t> CBC_OnedEAN13Writer::Encode(const ByteString& contents) { |
| if (contents.GetLength() != 13) |
| return DataVector<uint8_t>(); |
| |
| m_iDataLenth = 13; |
| int32_t firstDigit = FXSYS_DecimalCharToInt(contents.Front()); |
| int32_t parities = kFirstDigitEncodings[firstDigit]; |
| DataVector<uint8_t> result(m_codeWidth); |
| int32_t pos = 0; |
| pos += AppendPattern(result.data(), pos, kOnedEAN13StartPattern, 3, true); |
| |
| int32_t i = 0; |
| for (i = 1; i <= 6; i++) { |
| int32_t digit = FXSYS_DecimalCharToInt(contents[i]); |
| if ((parities >> (6 - i) & 1) == 1) { |
| digit += 10; |
| } |
| pos += AppendPattern(result.data(), pos, L_AND_G_PATTERNS[digit], 4, false); |
| } |
| pos += AppendPattern(result.data(), pos, kOnedEAN13MiddlePattern, 5, false); |
| |
| for (i = 7; i <= 12; i++) { |
| int32_t digit = FXSYS_DecimalCharToInt(contents[i]); |
| pos += |
| AppendPattern(result.data(), pos, kOnedEAN13LPattern[digit], 4, true); |
| } |
| pos += AppendPattern(result.data(), pos, kOnedEAN13StartPattern, 3, true); |
| return result; |
| } |
| |
| bool CBC_OnedEAN13Writer::ShowChars(WideStringView contents, |
| CFX_RenderDevice* device, |
| const CFX_Matrix& matrix, |
| int32_t barWidth) { |
| if (!device) |
| return false; |
| |
| constexpr float kLeftPosition = 10.0f; |
| ByteString str = FX_UTF8Encode(contents); |
| size_t length = str.GetLength(); |
| std::vector<TextCharPos> charpos(length); |
| int32_t iFontSize = static_cast<int32_t>(fabs(m_fFontSize)); |
| int32_t iTextHeight = iFontSize + 1; |
| ByteString tempStr = str.Substr(1, 6); |
| constexpr int32_t kWidth = 42; |
| |
| CFX_Matrix matr(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0); |
| CFX_FloatRect rect(kLeftPosition, (float)(m_Height - iTextHeight), |
| kLeftPosition + kWidth - 0.5, (float)m_Height); |
| matr.Concat(matrix); |
| FX_RECT re = matr.TransformRect(rect).GetOuterRect(); |
| device->FillRect(re, kBackgroundColor); |
| CFX_FloatRect rect1(kLeftPosition + 47, (float)(m_Height - iTextHeight), |
| kLeftPosition + 47 + kWidth - 0.5, (float)m_Height); |
| CFX_Matrix matr1(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0); |
| matr1.Concat(matrix); |
| re = matr1.TransformRect(rect1).GetOuterRect(); |
| device->FillRect(re, kBackgroundColor); |
| CFX_Matrix matr2(m_outputHScale, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f); |
| CFX_FloatRect rect2(0.0f, (float)(m_Height - iTextHeight), 6.5f, |
| (float)m_Height); |
| matr2.Concat(matrix); |
| re = matr2.TransformRect(rect2).GetOuterRect(); |
| device->FillRect(re, kBackgroundColor); |
| |
| float blank = 0.0f; |
| length = tempStr.GetLength(); |
| int32_t strWidth = static_cast<int32_t>(kWidth * m_outputHScale); |
| |
| CalcTextInfo(tempStr, &charpos[1], m_pFont, (float)strWidth, iFontSize, |
| blank); |
| { |
| CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0, |
| kLeftPosition * m_outputHScale, |
| (float)(m_Height - iTextHeight) + iFontSize); |
| affine_matrix1.Concat(matrix); |
| device->DrawNormalText(pdfium::make_span(charpos).subspan(1, length), |
| m_pFont, static_cast<float>(iFontSize), |
| affine_matrix1, m_fontColor, GetTextRenderOptions()); |
| } |
| tempStr = str.Substr(7, 6); |
| length = tempStr.GetLength(); |
| CalcTextInfo(tempStr, &charpos[7], m_pFont, (float)strWidth, iFontSize, |
| blank); |
| { |
| CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0, |
| (kLeftPosition + 47) * m_outputHScale, |
| (float)(m_Height - iTextHeight + iFontSize)); |
| affine_matrix1.Concat(matrix); |
| device->DrawNormalText(pdfium::make_span(charpos).subspan(7, length), |
| m_pFont, static_cast<float>(iFontSize), |
| affine_matrix1, m_fontColor, GetTextRenderOptions()); |
| } |
| tempStr = str.First(1); |
| length = tempStr.GetLength(); |
| strWidth = 7 * static_cast<int32_t>(strWidth * m_outputHScale); |
| |
| CalcTextInfo(tempStr, charpos.data(), m_pFont, (float)strWidth, iFontSize, |
| blank); |
| { |
| CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0, 0.0, |
| (float)(m_Height - iTextHeight + iFontSize)); |
| affine_matrix1.Concat(matrix); |
| device->DrawNormalText(pdfium::make_span(charpos).first(length), m_pFont, |
| static_cast<float>(iFontSize), affine_matrix1, |
| m_fontColor, GetTextRenderOptions()); |
| } |
| return true; |
| } |