1 /****************************************************************************** 2 ** libDXFrw - Library to read/write DXF files (ascii & binary) ** 3 ** ** 4 ** Copyright (C) 2011-2015 José F. Soriano, rallazz@gmail.com ** 5 ** ** 6 ** This library is free software, licensed under the terms of the GNU ** 7 ** General Public License as published by the Free Software Foundation, ** 8 ** either version 2 of the License, or (at your option) any later version. ** 9 ** You should have received a copy of the GNU General Public License ** 10 ** along with this program. If not, see <http://www.gnu.org/licenses/>. ** 11 ******************************************************************************/ 12 13 #ifndef DWGREADER18_H 14 #define DWGREADER18_H 15 16 #include <map> 17 #include <list> 18 #include "dwgreader.h" 19 //#include "../drw_textcodec.h" 20 #include "dwgbuffer.h" 21 22 static const int DRW_magicNum18[] = 23 { 24 0x29, 0x23, 0xbe, 0x84, 0xe1, 0x6c, 0xd6, 0xae, 25 0x52, 0x90, 0x49, 0xf1, 0xf1, 0xbb, 0xe9, 0xeb, 26 0xb3, 0xa6, 0xdb, 0x3c, 0x87, 0x0c, 0x3e, 0x99, 27 0x24, 0x5e, 0x0d, 0x1c, 0x06, 0xb7, 0x47, 0xde, 28 0xb3, 0x12, 0x4d, 0xc8, 0x43, 0xbb, 0x8b, 0xa6, 29 0x1f, 0x03, 0x5a, 0x7d, 0x09, 0x38, 0x25, 0x1f, 30 0x5d, 0xd4, 0xcb, 0xfc, 0x96, 0xf5, 0x45, 0x3b, 31 0x13, 0x0d, 0x89, 0x0a, 0x1c, 0xdb, 0xae, 0x32, 32 0x20, 0x9a, 0x50, 0xee, 0x40, 0x78, 0x36, 0xfd, 33 0x12, 0x49, 0x32, 0xf6, 0x9e, 0x7d, 0x49, 0xdc, 34 0xad, 0x4f, 0x14, 0xf2, 0x44, 0x40, 0x66, 0xd0, 35 0x6b, 0xc4, 0x30, 0xb7, 0x32, 0x3b, 0xa1, 0x22, 36 0xf6, 0x22, 0x91, 0x9d, 0xe1, 0x8b, 0x1f, 0xda, 37 0xb0, 0xca, 0x99, 0x02 38 }; 39 40 static const int DRW_magicNumEnd18[] = 41 { 42 0xf8, 0x46, 0x6a, 0x04, 0x96, 0x73, 0x0e, 0xd9, 43 0x16, 0x2f, 0x67, 0x68, 0xd4, 0xf7, 0x4a, 0x4a, 44 0xd0, 0x57, 0x68, 0x76 45 }; 46 47 class dwgReader18 : public dwgReader 48 { 49 public: dwgReader18(std::ifstream * stream,dwgR * p)50 dwgReader18( std::ifstream *stream, dwgR *p ) 51 : dwgReader( stream, p ) 52 , objData( nullptr ) 53 , uncompSize( 0 ) 54 { 55 } ~dwgReader18()56 virtual ~dwgReader18() 57 { 58 if ( objData ) 59 delete[] objData; 60 } 61 bool readMetaData(); 62 bool readFileHeader(); 63 bool readDwgHeader( DRW_Header &hdr ); 64 bool readDwgClasses(); 65 bool readDwgHandles(); 66 bool readDwgTables( DRW_Header &hdr ); readDwgBlocks(DRW_Interface & intfa)67 bool readDwgBlocks( DRW_Interface &intfa ) 68 { 69 dwgBuffer dataBuf( objData, uncompSize, &decoder ); 70 return dwgReader::readDwgBlocks( intfa, &dataBuf ); 71 } 72 readDwgEntities(DRW_Interface & intfa)73 virtual bool readDwgEntities( DRW_Interface &intfa ) 74 { 75 bool ret = true; 76 dwgBuffer dataBuf( objData, uncompSize, &decoder ); 77 ret = dwgReader::readDwgEntities( intfa, &dataBuf ); 78 return ret; 79 } readDwgObjects(DRW_Interface & intfa)80 virtual bool readDwgObjects( DRW_Interface &intfa ) 81 { 82 dwgBuffer dataBuf( objData, uncompSize, &decoder ); 83 return dwgReader::readDwgObjects( intfa, &dataBuf ); 84 } 85 86 #if 0 87 bool readDwgEntity( objHandle &obj, DRW_Interface &intfa ) 88 { 89 bool ret = true; 90 return ret; 91 } 92 #endif 93 94 protected: 95 duint8 *objData = nullptr; 96 duint64 uncompSize; 97 98 private: 99 void genMagicNumber(); 100 // dwgBuffer* bufObj; 101 void parseSysPage( duint8 *decompSec, duint32 decompSize ); //called: Section page map: 0x41630e3b 102 bool parseDataPage( dwgSectionInfo si/*, duint8 *dData*/ ); //called ???: Section map: 0x4163003b 103 duint32 checksum( duint32 seed, duint8 *data, duint32 sz ); 104 105 private: 106 duint32 securityFlags; 107 }; 108 109 #endif // DWGREADER18_H 110