1 /******************************************************************************* 2 * Project: libopencad 3 * Purpose: OpenSource CAD formats support library 4 * Author: Alexandr Borzykh, mush3d at gmail.com 5 * Author: Dmitry Baryshnikov, bishop.dev@gmail.com 6 * Language: C++ 7 ******************************************************************************* 8 * The MIT License (MIT) 9 * 10 * Copyright (c) 2016 Alexandr Borzykh 11 * Copyright (c) 2016-2018 NextGIS, <info@nextgis.com> 12 * 13 * Permission is hereby granted, free of charge, to any person obtaining a copy 14 * of this software and associated documentation files (the "Software"), to deal 15 * in the Software without restriction, including without limitation the rights 16 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 17 * copies of the Software, and to permit persons to whom the Software is 18 * furnished to do so, subject to the following conditions: 19 * 20 * The above copyright notice and this permission notice shall be included in all 21 * copies or substantial portions of the Software. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 24 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 26 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 27 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 28 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 29 * SOFTWARE. 30 *******************************************************************************/ 31 #ifndef DWG_R2000_H_H 32 #define DWG_R2000_H_H 33 34 #include "cadfile.h" 35 #include "io.h" 36 37 struct SectionLocatorRecord 38 { 39 char byRecordNumber = 0; 40 int dSeeker = 0; 41 int dSize = 0; 42 }; 43 44 struct DWG2000Ced 45 { 46 long dLength; 47 short dType; 48 int dObjSizeInBits; 49 CADHandle hHandle; 50 CADEedArray eEED; 51 bool bGraphicPresentFlag; 52 53 char dEntMode; 54 int dNumReactors; 55 56 bool bNoLinks; 57 short dCMColorIndex; 58 double dfLtypeScale; 59 60 char ltype_flags; 61 char plotstyle_flags; 62 63 short dInvisibility; 64 char cLineWeight; 65 }; 66 67 struct DWG2000Cehd 68 { 69 CADHandle hOwner; 70 CADHandle hReactors; 71 CADHandle hxdibobjhandle; 72 CADHandle hprev_entity, hnext_entity; 73 CADHandle hlayer; 74 CADHandle hltype; 75 CADHandle hplotstyle; 76 }; 77 78 class DWGFileR2000 : public CADFile 79 { 80 public: 81 explicit DWGFileR2000( CADFileIO * poFileIO ); 82 virtual ~DWGFileR2000() = default; 83 84 protected: 85 virtual int ReadSectionLocators() override; 86 virtual int ReadHeader( enum OpenOptions eOptions ) override; 87 virtual int ReadClasses( enum OpenOptions eOptions ) override; 88 virtual int CreateFileMap() override; 89 90 CADObject * GetObject( long dHandle, bool bHandlesOnly = false ) override; 91 CADGeometry * GetGeometry( size_t iLayerIndex, long dHandle, 92 long dBlockRefHandle = 0 ) override; 93 94 CADDictionary GetNOD() override; 95 protected: 96 CADBlockObject * getBlock(unsigned int dObjectSize, 97 const CADCommonED& stCommonEntityData, 98 CADBuffer& buffer); 99 CADEllipseObject * getEllipse(unsigned int dObjectSize, 100 const CADCommonED& stCommonEntityData, 101 CADBuffer &buffer); 102 CADSolidObject * getSolid( unsigned int dObjectSize, 103 const CADCommonED& stCommonEntityData, 104 CADBuffer& buffer); 105 CADPointObject * getPoint(unsigned int dObjectSize, 106 const CADCommonED& stCommonEntityData, 107 CADBuffer &buffer); 108 CADPolyline3DObject * getPolyLine3D(unsigned int dObjectSize, 109 const CADCommonED& stCommonEntityData, 110 CADBuffer &buffer); 111 CADRayObject * getRay( unsigned int dObjectSize, 112 const CADCommonED& stCommonEntityData, 113 CADBuffer &buffer); 114 CADXLineObject * getXLine( unsigned int dObjectSize, 115 const CADCommonED& stCommonEntityData, 116 CADBuffer &buffer ); 117 CADLineObject * getLine( unsigned int dObjectSize, 118 const CADCommonED& stCommonEntityData, 119 CADBuffer &buffer ); 120 CADTextObject * getText( unsigned int dObjectSize, 121 const CADCommonED& stCommonEntityData, 122 CADBuffer &buffer ); 123 CADVertex3DObject * getVertex3D( unsigned int dObjectSize, 124 const CADCommonED& stCommonEntityData, 125 CADBuffer &buffer ); 126 CADCircleObject * getCircle( unsigned int dObjectSize, 127 const CADCommonED& stCommonEntityData, 128 CADBuffer &buffer ); 129 CADEndblkObject * getEndBlock( unsigned int dObjectSize, 130 const CADCommonED& stCommonEntityData, 131 CADBuffer &buffer ); 132 CADPolyline2DObject * getPolyline2D( unsigned int dObjectSize, 133 const CADCommonED& stCommonEntityData, 134 CADBuffer &buffer ); 135 CADAttribObject * getAttributes( unsigned int dObjectSize, 136 const CADCommonED& stCommonEntityData, 137 CADBuffer &buffer ); 138 CADAttdefObject * getAttributesDefn( unsigned int dObjectSize, 139 const CADCommonED& stCommonEntityData, 140 CADBuffer &buffer ); 141 CADLWPolylineObject * getLWPolyLine( unsigned int dObjectSize, 142 const CADCommonED& stCommonEntityData, 143 CADBuffer &buffer ); 144 CADArcObject * getArc( unsigned int dObjectSize, 145 const CADCommonED& stCommonEntityData, 146 CADBuffer &buffer ); 147 CADSplineObject * getSpline( unsigned int dObjectSize, 148 const CADCommonED& stCommonEntityData, 149 CADBuffer &buffer ); 150 CADEntityObject * getEntity( int dObjectType, unsigned int dObjectSize, 151 const CADCommonED& stCommonEntityData, 152 CADBuffer &buffer ); 153 CADInsertObject * getInsert( int dObjectType, unsigned int dObjectSize, 154 const CADCommonED& stCommonEntityData, 155 CADBuffer &buffer ); 156 CADDictionaryObject * getDictionary( unsigned int dObjectSize, 157 CADBuffer &buffer ); 158 CADXRecordObject * getXRecord( unsigned int dObjectSize, 159 CADBuffer &buffer ); 160 CADLayerObject * getLayerObject( unsigned int dObjectSize, 161 CADBuffer &buffer ); 162 CADLayerControlObject * getLayerControl( unsigned int dObjectSize, 163 CADBuffer &buffer ); 164 CADBlockControlObject * getBlockControl( unsigned int dObjectSize, 165 CADBuffer &buffer ); 166 CADBlockHeaderObject * getBlockHeader( unsigned int dObjectSize, 167 CADBuffer &buffer ); 168 CADLineTypeControlObject * getLineTypeControl( unsigned int dObjectSize, 169 CADBuffer &buffer ); 170 CADLineTypeObject * getLineType1( unsigned int dObjectSize, 171 CADBuffer &buffer ); 172 CADMLineObject * getMLine( unsigned int dObjectSize, 173 const CADCommonED& stCommonEntityData, 174 CADBuffer &buffer ); 175 CADPolylinePFaceObject * getPolylinePFace( unsigned int dObjectSize, 176 const CADCommonED& stCommonEntityData, 177 CADBuffer &buffer ); 178 CADImageObject * getImage( unsigned int dObjectSize, 179 const CADCommonED& stCommonEntityData, 180 CADBuffer &buffer ); 181 CAD3DFaceObject * get3DFace( unsigned int dObjectSize, 182 const CADCommonED& stCommonEntityData, 183 CADBuffer &buffer ); 184 CADVertexMeshObject * getVertexMesh( unsigned int dObjectSize, 185 const CADCommonED& stCommonEntityData, 186 CADBuffer &buffer ); 187 CADVertexPFaceObject * getVertexPFace( unsigned int dObjectSize, 188 const CADCommonED& stCommonEntityData, 189 CADBuffer &buffer ); 190 CADDimensionObject * getDimension( short dObjectType, unsigned int dObjectSize, 191 const CADCommonED& stCommonEntityData, 192 CADBuffer &buffer ); 193 CADMTextObject * getMText( unsigned int dObjectSize, 194 const CADCommonED& stCommonEntityData, 195 CADBuffer &buffer ); 196 CADImageDefObject * getImageDef( unsigned int dObjectSize, 197 CADBuffer &buffer ); 198 CADImageDefReactorObject * getImageDefReactor( unsigned int dObjectSize, 199 CADBuffer &buffer ); 200 void fillCommonEntityHandleData(CADEntityObject * pEnt, CADBuffer &buffer); 201 unsigned short validateEntityCRC(CADBuffer& buffer, unsigned int dObjectSize, 202 const char * entityName = "ENTITY", 203 bool bSwapEndianness = false ); 204 bool readBasicData(CADBaseControlObject * pBaseControlObject, 205 unsigned int dObjectSize, 206 CADBuffer &buffer); 207 protected: 208 int imageSeeker; 209 std::vector<SectionLocatorRecord> sectionLocatorRecords; 210 }; 211 212 #endif // DWG_R2000_H_H 213