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 0x29, 0x23, 0xbe, 0x84, 0xe1, 0x6c, 0xd6, 0xae, 24 0x52, 0x90, 0x49, 0xf1, 0xf1, 0xbb, 0xe9, 0xeb, 25 0xb3, 0xa6, 0xdb, 0x3c, 0x87, 0x0c, 0x3e, 0x99, 26 0x24, 0x5e, 0x0d, 0x1c, 0x06, 0xb7, 0x47, 0xde, 27 0xb3, 0x12, 0x4d, 0xc8, 0x43, 0xbb, 0x8b, 0xa6, 28 0x1f, 0x03, 0x5a, 0x7d, 0x09, 0x38, 0x25, 0x1f, 29 0x5d, 0xd4, 0xcb, 0xfc, 0x96, 0xf5, 0x45, 0x3b, 30 0x13, 0x0d, 0x89, 0x0a, 0x1c, 0xdb, 0xae, 0x32, 31 0x20, 0x9a, 0x50, 0xee, 0x40, 0x78, 0x36, 0xfd, 32 0x12, 0x49, 0x32, 0xf6, 0x9e, 0x7d, 0x49, 0xdc, 33 0xad, 0x4f, 0x14, 0xf2, 0x44, 0x40, 0x66, 0xd0, 34 0x6b, 0xc4, 0x30, 0xb7, 0x32, 0x3b, 0xa1, 0x22, 35 0xf6, 0x22, 0x91, 0x9d, 0xe1, 0x8b, 0x1f, 0xda, 36 0xb0, 0xca, 0x99, 0x02 37 }; 38 39 static const int DRW_magicNumEnd18[] = { 40 0xf8, 0x46, 0x6a, 0x04, 0x96, 0x73, 0x0e, 0xd9, 41 0x16, 0x2f, 0x67, 0x68, 0xd4, 0xf7, 0x4a, 0x4a, 42 0xd0, 0x57, 0x68, 0x76}; 43 44 class dwgReader18 : public dwgReader { 45 public: dwgReader18(std::istream * stream,dwgR * p)46 dwgReader18(std::istream *stream, dwgR *p):dwgReader(stream, p){ 47 objData = NULL; 48 } ~dwgReader18()49 virtual ~dwgReader18(){ 50 if (objData != NULL) 51 delete[] objData; 52 } 53 bool readMetaData(); 54 bool readFileHeader(); 55 bool readDwgHeader(DRW_Header& hdr); 56 bool readDwgClasses(); 57 bool readDwgHandles(); 58 bool readDwgTables(DRW_Header& hdr); readDwgBlocks(DRW_Interface & intfa)59 bool readDwgBlocks(DRW_Interface& intfa){ 60 bool ret = true; 61 dwgBuffer dataBuf(objData, uncompSize, &decoder); 62 ret = dwgReader::readDwgBlocks(intfa, &dataBuf); 63 return ret; 64 } 65 readDwgEntities(DRW_Interface & intfa)66 virtual bool readDwgEntities(DRW_Interface& intfa){ 67 bool ret = true; 68 dwgBuffer dataBuf(objData, uncompSize, &decoder); 69 ret = dwgReader::readDwgEntities(intfa, &dataBuf); 70 return ret; 71 } readDwgObjects(DRW_Interface & intfa)72 virtual bool readDwgObjects(DRW_Interface& intfa){ 73 bool ret = true; 74 dwgBuffer dataBuf(objData, uncompSize, &decoder); 75 ret = dwgReader::readDwgObjects(intfa, &dataBuf); 76 return ret; 77 } 78 79 // bool readDwgEntity(objHandle& obj, DRW_Interface& intfa){ 80 // bool ret = true; 81 // return ret; 82 // } 83 84 protected: 85 duint8 *objData; 86 duint64 uncompSize; 87 88 private: 89 void genMagicNumber(); 90 // dwgBuffer* bufObj; 91 void parseSysPage(duint8 *decompSec, duint32 decompSize); //called: Section page map: 0x41630e3b 92 bool parseDataPage(dwgSectionInfo si/*, duint8 *dData*/); //called ???: Section map: 0x4163003b 93 duint32 checksum(duint32 seed, duint8* data, duint32 sz); 94 95 private: 96 duint32 securityFlags; 97 }; 98 99 #endif // DWGREADER18_H 100