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www.mxdraw.com
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McDbLinetypeTable 类
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www.mxdraw.com
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数据库中的线型表，所有的线型定义都存放在这里
class McDbLinetypeTable : public McDbSymbolTable;
McDbSymbolTable.h
例如:得到所有的线型
void GetAllLineTypeName() { // 读方式打开线型表 McDbLinetypeTablePointer spLinetypeTable(acdbCurDwg(),McDb::kForRead); if(spLinetypeTable.openStatus() != Mcad::eOk) return; // 创建一个遍历器，准备遍历块表 McDbLinetypeTableIterator* pIterator = NULL; spLinetypeTable->newIterator(pIterator); if(pIterator == NULL) return; // 把遍历器的指针交给智能指针管理 std::auto_ptr<McDbLinetypeTableIterator> spIterator(pIterator); // 遍历所有记录 for(;!pIterator->done();pIterator->step()) { McDbObjectId id; pIterator->getRecordId(id); // 读方式打开记录 McDbObjectPointer<McDbLinetypeTableRecord> spLinetypeRec(id,McDb::kForRead); if(spLinetypeRec.openStatus() != Mcad::eOk) continue; LPCTSTR pszName = NULL; spLinetypeRec->getName(pszName); CString sT; sT.Format(_T("发现线型名:%s"),pszName); AfxMessageBox(sT); } };
例如:向控件增加一个简单线型
AcDbObjectId AddLinetype(MxDraw::MXDRAWOCXHANDLE m_hDrawOcx, LPCTSTR pszName, LPCTSTR pszLineDefine) { CString sName(pszName); if(sName.IsEmpty() ) return AcDbObjectId::kNull; { AcDbLinetypeTableRecordPointer spLinTypeTabRec(sName, MxDraw::GetDatabase(m_hDrawOcx),McDb::kForRead); if(spLinTypeTabRec.openStatus() == Mcad::eOk) { // 控件内已经有该名称的线型了。 return AcDbObjectId::kNull; } } AcDbLinetypeTablePointer spLineTypeTable(MxDraw::GetDatabase(m_hDrawOcx),AcDb::kForWrite); if(spLineTypeTable.openStatus() != Acad::eOk) { return AcDbObjectId::kNull; } // 读取线数据定义。 std::vector<double> vecLineData; MxStrList list(pszLineDefine); int iCount = list.GetCount(); for(int i = 0; i < iCount;i++) { double d = list.GetDoubleAt(i); vecLineData.push_back(d); } if(vecLineData.size() < 1) { return AcDbObjectId::kNull; } // 创建线形数据。 AcDbLinetypeTableRecord* pNewRec = new AcDbLinetypeTableRecord; CString strT; strT.Format(_T("custom line type: %s"),sName); pNewRec->setName(sName); pNewRec->setAsciiDescription(strT); pNewRec->setPatternLength(1.0); pNewRec->setNumDashes((int)(vecLineData.size() ) ); for(unsigned int k = 0; k < vecLineData.size();k++) { pNewRec->setDashLengthAt(k,vecLineData[k]); } AcDbObjectId linetypeId; spLineTypeTable->add(linetypeId,pNewRec); pNewRec->close(); return linetypeId; } // 调用代码 AddLinetype(MxDraw::GetCurOcxHandle(), _T("MyLineType"), _T("6,-10"));
例如:向控件增加一个带文字的线型
McDbObjectId AddLinetypeEx(MxDraw::MXDRAWOCXHANDLE m_hDrawOcx, LPCTSTR pszName, LPCTSTR pszLineDefine, LPCTSTR pszTextStyle) { CString sName(pszName); if(sName.IsEmpty() ) return McDbObjectId::kNull; CString sTextStyle(pszTextStyle); if(sTextStyle.IsEmpty() ) return McDbObjectId::kNull; { AcDbLinetypeTableRecordPointer spLinTypeTabRec(sName, MxDraw::GetDatabase(m_hDrawOcx),McDb::kForRead); if(spLinTypeTabRec.openStatus() == Mcad::eOk) { // 控件内已经有该名称的线型了。 return McDbObjectId::kNull; } } McDbObjectId lineTypeId; { McDbTextStyleTableRecordPointer spTextStyleTabRec(sTextStyle, MxDraw::GetDatabase(m_hDrawOcx),McDb::kForRead); if(spTextStyleTabRec.openStatus() != Mcad::eOk) { return McDbObjectId::kNull; } lineTypeId = spTextStyleTabRec->objectId(); } AcDbLinetypeTablePointer spLineTypeTable(MxDraw::GetDatabase(m_hDrawOcx),AcDb::kForWrite); if(spLineTypeTable.openStatus() != Acad::eOk) { return McDbObjectId::kNull; } enum UnitType { kInvalid= 0, // 无效的类型，用于dwgOutFields,dwgInFields kNormal = 1, // 正常的Dashe数据 kText = 2, // 复合的文字的数据,因为线型中可以有文字 kShap = 3 // 复合的形数据 }; enum RotationType { kA, // 旋转角度是相对于坐标系统的X轴 kR // 旋转角度是相对曲线该点处的切线方向 }; // 临时的线型数据。 struct stuLineUnit { UnitType type; // 数据类型 double d; // Dashe的长度 CString sTxt; // 文字内容 McDbHardPointerId textStyleId; // 文字风格ID。 double dScale; // 缩放比例 RotationType rotationType; // 旋转角度的类型 double dRotation; // 旋转角度 double dXoffset; // 文字在线型上位置的X偏移 double dYoffset; // 文字在线型上位置的Y偏移 int iShapeNumber; // 形在形文件中的编号. stuLineUnit() { d = 0.0; type = kNormal; dScale = 1.0; rotationType = kR; dRotation = 0.0; dXoffset = 0.0; dYoffset = 0.0; iShapeNumber = 0; } }; // 读取线数据定义。 std::vector<stuLineUnit> vecLineData; CStrList list(pszLineDefine); int iCount = list.GetCount(); for(int i = 0; i < iCount;i++) { stuLineUnit tmp; tmp.textStyleId = lineTypeId; CString sShpDef = list.GetStrAt(i); if(Mx::IsNumerical(sShpDef) ) { tmp.d = _tstof(sShpDef); tmp.type = kNormal; vecLineData.push_back(tmp); } else { // 可能是个复杂的形文字。 if(sShpDef.IsEmpty() || sShpDef[0] != _T('(') || sShpDef[sShpDef.GetLength() - 1] != _T(')') ) continue; bool isGetTxt = false; bool iShapeNumber = false; CStrList lstShpDef(sShpDef); int iShpDefCount = lstShpDef.GetCount(); for(int j = 0; j < iShpDefCount;j++) { CString sTmpV = lstShpDef.GetStrAt(j); if(sTmpV.IsEmpty() || sTmpV.GetLength() < 3) continue; CString sFlag = sTmpV.Left(2); CString sDefV = sTmpV.Mid(2); sFlag.MakeUpper(); if(sFlag == _T("T=") ) { isGetTxt = true; tmp.sTxt = sDefV; tmp.iShapeNumber = 0; tmp.type = kText; } else if(sFlag == _T("I=") ) { if(Mx::IsNumerical(sDefV) ) { tmp.iShapeNumber = _tstoi(sDefV); if(tmp.iShapeNumber > 0) { tmp.sTxt = _T(""); iShapeNumber = true; tmp.type = kShap; } } } else if(sFlag == _T("X=") ) { if(Mx::IsNumerical(sDefV) ) { tmp.dXoffset = _tstof(sDefV); } } else if(sFlag == _T("Y=") ) { if(Mx::IsNumerical(sDefV) ) { tmp.dYoffset = _tstof(sDefV); } } else if(sFlag == _T("S=") ) { if(Mx::IsNumerical(sDefV) ) { tmp.dScale = _tstof(sDefV); } } else if(sFlag == _T("R=") ) { if(Mx::IsNumerical(sDefV) ) { tmp.dRotation = _tstof(sDefV); tmp.dRotation *= 3.14159265 / 180.0; tmp.rotationType = kR; } } else if(sFlag == _T("A=") ) { if(Mx::IsNumerical(sDefV) ) { tmp.dRotation = _tstof(sDefV); tmp.dRotation *= 3.14159265 / 180.0; tmp.rotationType = kA; } } else if(sFlag == _T("L=") ) { if(Mx::IsNumerical(sDefV) ) { tmp.d = _tstof(sDefV); } } } if(isGetTxt || iShapeNumber) { vecLineData.push_back(tmp); } } } if(vecLineData.size() < 1) { return 0; } // 创建线形数据。 AcDbLinetypeTableRecord* pNewRec = new AcDbLinetypeTableRecord; CString strT; strT.Format(_T("custom line type: %s"),sName); pNewRec->setName(sName); pNewRec->setAsciiDescription(strT); pNewRec->setPatternLength(1.0); pNewRec->setNumDashes((int)(vecLineData.size() ) ); for(unsigned int k = 0; k < vecLineData.size();k++) { stuLineUnit tmp = vecLineData[k]; pNewRec->setDashLengthAt(k,tmp.d); if(tmp.type == kText || tmp.type == kShap) { pNewRec->setShapeStyleAt(k,tmp.textStyleId); pNewRec->setShapeNumberAt(k,tmp.iShapeNumber); McGeVector2d vec(tmp.dXoffset,tmp.dYoffset); pNewRec->setShapeOffsetAt(k,vec); pNewRec->setShapeScaleAt(k,tmp.dScale ); pNewRec->setShapeRotationAt(k,tmp.dRotation); pNewRec->setShapeIsUcsOrientedAt(k,tmp.rotationType == kA); pNewRec->setTextAt(k,tmp.sTxt); } } AcDbObjectId linetypeId; spLineTypeTable->add(linetypeId,pNewRec); pNewRec->close(); return (LONG)(linetypeId.asOldId() ); } // 调用代码 AddLinetypeEx(_T("MyLineType3"), _T("(12.7,("T=MxDraw","S=2.54","L=-5.08","R=0.0","X=-2.54","Y=-1.27"),-10.08)"), _T("MyLineTypeTextStyle") );
