mirror of https://github.com/JakubMelka/PDF4QT.git
75 lines
3.0 KiB
C++
75 lines
3.0 KiB
C++
// Copyright (C) 2018-2021 Jakub Melka
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//
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// This file is part of PDF4QT.
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//
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// PDF4QT is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// with the written consent of the copyright owner, any later version.
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//
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// PDF4QT is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
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#ifndef PDFCONSTANTS_H
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#define PDFCONSTANTS_H
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namespace pdf
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{
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// Name of the library, together with version
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static constexpr const char* PDF_LIBRARY_NAME = "PDF4QT 1.0.0";
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static constexpr const char* PDF_LIBRARY_VERSION = "1.0.0";
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// Structure file constants
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static constexpr const char* PDF_END_OF_FILE_MARK = "%%EOF";
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static constexpr const char* PDF_START_OF_XREF_MARK = "startxref";
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static constexpr const char* PDF_FILE_HEADER_V1 = "%PDF-?.?";
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static constexpr const char* PDF_FILE_HEADER_V2 = "%!PS-Adobe-?.? PDF-?.?";
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static constexpr const char* PDF_FILE_HEADER_REGEXP = "%PDF-([[:digit:]]\\.[[:digit:]])|%!PS-Adobe-[[:digit:]]\\.[[:digit:]] PDF-([[:digit:]]\\.[[:digit:]])";
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static constexpr const int PDF_HEADER_SCAN_LIMIT = 1024;
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static constexpr const int PDF_FOOTER_SCAN_LIMIT = 1024;
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// Stream dictionary constants - entries common to all stream dictionaries
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static constexpr const char* PDF_STREAM_DICT_LENGTH = "Length";
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static constexpr const char* PDF_STREAM_DICT_FILTER = "Filter";
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static constexpr const char* PDF_STREAM_DICT_DECODE_PARMS = "DecodeParms";
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static constexpr const char* PDF_STREAM_DICT_FILE_SPECIFICATION = "F";
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static constexpr const char* PDF_STREAM_DICT_FILE_FILTER = "FFilter";
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static constexpr const char* PDF_STREAM_DICT_FDECODE_PARMS = "FDecodeParms";
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static constexpr const char* PDF_STREAM_DICT_DECODED_LENGTH = "DL";
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// xref table constants
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static constexpr const char* PDF_XREF_HEADER = "xref";
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static constexpr const char* PDF_XREF_TRAILER = "trailer";
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static constexpr const char* PDF_XREF_TRAILER_PREVIOUS = "Prev";
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static constexpr const char* PDF_XREF_TRAILER_XREFSTM = "XRefStm";
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static constexpr const char* PDF_XREF_FREE = "f";
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static constexpr const char* PDF_XREF_OCCUPIED = "n";
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// objects
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static constexpr const char* PDF_OBJECT_START_MARK = "obj";
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static constexpr const char* PDF_OBJECT_END_MARK = "endobj";
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// maximum generation limit
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static constexpr const int PDF_MAX_OBJECT_GENERATION = 65535;
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// Colors
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static constexpr const int PDF_MAX_COLOR_COMPONENTS = 32;
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// Cache limits
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static constexpr size_t DEFAULT_FONT_CACHE_LIMIT = 32;
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static constexpr size_t DEFAULT_REALIZED_FONT_CACHE_LIMIT = 128;
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} // namespace pdf
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#endif // PDFCONSTANTS_H
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