| // 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 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_OnedEAN8Writer.h" |
| |
| #include <algorithm> |
| #include <cwctype> |
| #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/common/BC_CommonBitMatrix.h" |
| #include "fxbarcode/oned/BC_OneDimWriter.h" |
| #include "fxbarcode/oned/BC_OnedEANChecksum.h" |
| |
| namespace { |
| |
| const int8_t kOnedEAN8StartPattern[3] = {1, 1, 1}; |
| const int8_t kOnedEAN8MiddlePattern[5] = {1, 1, 1, 1, 1}; |
| const int8_t kOnedEAN8LPattern[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}}; |
| |
| } // namespace |
| |
| CBC_OnedEAN8Writer::CBC_OnedEAN8Writer() { |
| m_iDataLenth = 8; |
| } |
| |
| CBC_OnedEAN8Writer::~CBC_OnedEAN8Writer() = default; |
| |
| void CBC_OnedEAN8Writer::SetDataLength(int32_t length) { |
| m_iDataLenth = 8; |
| } |
| |
| bool CBC_OnedEAN8Writer::SetTextLocation(BC_TEXT_LOC location) { |
| if (location == BC_TEXT_LOC_BELOWEMBED) { |
| m_locTextLoc = location; |
| return true; |
| } |
| return false; |
| } |
| |
| bool CBC_OnedEAN8Writer::CheckContentValidity(WideStringView contents) { |
| return HasValidContentSize(contents) && |
| std::all_of(contents.begin(), contents.end(), |
| [](wchar_t c) { return FXSYS_IsDecimalDigit(c); }); |
| } |
| |
| WideString CBC_OnedEAN8Writer::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_OnedEAN8Writer::CalcChecksum(const ByteString& contents) { |
| return EANCalcChecksum(contents); |
| } |
| |
| uint8_t* CBC_OnedEAN8Writer::EncodeWithHint(const ByteString& contents, |
| BCFORMAT format, |
| int32_t& outWidth, |
| int32_t& outHeight, |
| int32_t hints) { |
| if (format != BCFORMAT_EAN_8) |
| return nullptr; |
| return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight, |
| hints); |
| } |
| |
| uint8_t* CBC_OnedEAN8Writer::EncodeImpl(const ByteString& contents, |
| int32_t& outLength) { |
| if (contents.GetLength() != 8) |
| return nullptr; |
| |
| outLength = m_codeWidth; |
| std::unique_ptr<uint8_t, FxFreeDeleter> result( |
| FX_Alloc(uint8_t, m_codeWidth)); |
| int32_t pos = 0; |
| pos += AppendPattern(result.get(), pos, kOnedEAN8StartPattern, 3, true); |
| |
| int32_t i = 0; |
| for (i = 0; i <= 3; i++) { |
| int32_t digit = FXSYS_DecimalCharToInt(contents[i]); |
| pos += AppendPattern(result.get(), pos, kOnedEAN8LPattern[digit], 4, false); |
| } |
| pos += AppendPattern(result.get(), pos, kOnedEAN8MiddlePattern, 5, false); |
| |
| for (i = 4; i <= 7; i++) { |
| int32_t digit = FXSYS_DecimalCharToInt(contents[i]); |
| pos += AppendPattern(result.get(), pos, kOnedEAN8LPattern[digit], 4, true); |
| } |
| pos += AppendPattern(result.get(), pos, kOnedEAN8StartPattern, 3, true); |
| return result.release(); |
| } |
| |
| bool CBC_OnedEAN8Writer::ShowChars(WideStringView contents, |
| CFX_RenderDevice* device, |
| const CFX_Matrix& matrix, |
| int32_t barWidth, |
| int32_t multiple) { |
| if (!device) |
| return false; |
| |
| int32_t leftPosition = 3 * multiple; |
| ByteString str = FX_UTF8Encode(contents); |
| size_t iLength = str.GetLength(); |
| std::vector<TextCharPos> charpos(iLength); |
| ByteString tempStr = str.First(4); |
| size_t iLen = tempStr.GetLength(); |
| int32_t strWidth = 7 * multiple * 4; |
| float blank = 0.0; |
| |
| int32_t iFontSize = static_cast<int32_t>(fabs(m_fFontSize)); |
| int32_t iTextHeight = iFontSize + 1; |
| |
| CFX_Matrix matr(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0); |
| CFX_FloatRect rect((float)leftPosition, (float)(m_Height - iTextHeight), |
| (float)(leftPosition + strWidth - 0.5), (float)m_Height); |
| matr.Concat(matrix); |
| FX_RECT re = matr.TransformRect(rect).GetOuterRect(); |
| device->FillRect(re, kBackgroundColor); |
| CFX_Matrix matr1(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0); |
| CFX_FloatRect rect1( |
| (float)(leftPosition + 33 * multiple), (float)(m_Height - iTextHeight), |
| (float)(leftPosition + 33 * multiple + strWidth - 0.5), (float)m_Height); |
| matr1.Concat(matrix); |
| re = matr1.TransformRect(rect1).GetOuterRect(); |
| device->FillRect(re, kBackgroundColor); |
| strWidth = static_cast<int32_t>(strWidth * m_outputHScale); |
| |
| CalcTextInfo(tempStr, charpos.data(), m_pFont.Get(), (float)strWidth, |
| iFontSize, blank); |
| { |
| CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0, |
| (float)leftPosition * m_outputHScale, |
| (float)(m_Height - iTextHeight + iFontSize)); |
| affine_matrix1.Concat(matrix); |
| device->DrawNormalText(iLen, charpos.data(), m_pFont.Get(), |
| static_cast<float>(iFontSize), affine_matrix1, |
| m_fontColor, GetTextRenderOptions()); |
| } |
| tempStr = str.Substr(4, 4); |
| iLen = tempStr.GetLength(); |
| CalcTextInfo(tempStr, &charpos[4], m_pFont.Get(), (float)strWidth, iFontSize, |
| blank); |
| { |
| CFX_Matrix affine_matrix1( |
| 1.0, 0.0, 0.0, -1.0, |
| (float)(leftPosition + 33 * multiple) * m_outputHScale, |
| (float)(m_Height - iTextHeight + iFontSize)); |
| affine_matrix1.Concat(matrix); |
| device->DrawNormalText(iLen, &charpos[4], m_pFont.Get(), |
| static_cast<float>(iFontSize), affine_matrix1, |
| m_fontColor, GetTextRenderOptions()); |
| } |
| return true; |
| } |