File indexing completed on 2024-04-28 07:39:49

 /*
     SPDX-FileCopyrightText: 2007 Vladimir Kuznetsov <ks.vladimir@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 /** \file types.h
  *  \brief Type to and from string conversion helpers
  */
 
 #ifndef STEPCORE_TYPES_H
 #define STEPCORE_TYPES_H
 
 #include "object.h"
 #include "vector.h"
 #define EIGEN_USE_NEW_STDVECTOR
 #include <Eigen/StdVector>
 #include <Eigen/Sparse>
 
 #include <QByteArray>
 
 namespace StepCore {
 
 typedef Eigen::SparseMatrix<double> SparseColMatrix;
 typedef Eigen::SparseMatrix<double,Eigen::RowMajor> SparseRowMatrix;
 // a sparse matrix with efficient write facilities
 typedef Eigen::SparseMatrix<double,Eigen::RowMajor> DynSparseRowMatrix;
 typedef Eigen::Map<Eigen::VectorXd> MappedVector;
 
 ///////////////// Color
 struct Color
 {
     Color() {}
     Color(unsigned int v): value(v) {}
     operator unsigned int() const { return value; }
     unsigned int value;
 };
 
 template<> inline QString typeToString(const Color& v)
 {
     return QStringLiteral("#%1").arg(v, 8, 16, QLatin1Char('0'));
 }
 
 template<> inline Color stringToType(const QString& s, bool *ok)
 {
     if(ok) *ok = false;
     QString s1 = s.trimmed();
     if(!s1.startsWith('#')) return Color(0);
     s1 = s1.mid(1);
     return Color(s1.toUInt(ok, 16));
 }
 
 ///////////////// QByteArray
 template<> inline QString typeToString(const QByteArray& v)
 {
     return QString::fromLatin1(v.toBase64());
 }
 
 template<> inline QByteArray stringToType(const QString& s, bool *ok)
 {
     if(ok) *ok = true;
     return QByteArray::fromBase64(s.toLatin1());
 }
 
 ///////////////// Vector2d
 template<> inline QString typeToString(const Vector2d& v)
 {
     return QStringLiteral("(%1,%2)").arg(v[0]).arg(v[1]);
 }
 
 template<> inline Vector2d stringToType(const QString& s, bool *ok)
 {
     // XXX: Write something better
     if(ok) *ok = false;
     QString s1 = s.trimmed();
     if(!s1.startsWith('(') || !s1.endsWith(')')) return Vector2d();
     s1 = s1.mid(1, s1.size()-2);    
     bool ok1, ok2;
     StepCore::Vector2d v(s1.section(',',0,0).toDouble(&ok1), s1.section(',',1,1).toDouble(&ok2));
     if(!ok1 || !ok2) return v;
     if(ok) *ok = true;
     return v;
 }
 
 ///////////////// Vector2i
 template<> inline QString typeToString(const Vector2i& v)
 {
     return QStringLiteral("(%1,%2)").arg(v[0]).arg(v[1]);
 }
 
 template<> inline Vector2i stringToType(const QString& s, bool *ok)
 {
     // XXX: Write something better
     if(ok) *ok = false;
     QString s1 = s.trimmed();
     if(!s1.startsWith('(') || !s1.endsWith(')')) return Vector2i();
     s1 = s1.mid(1, s1.size()-2);    
     bool ok1, ok2;
     StepCore::Vector2i v(s1.section(',',0,0).toInt(&ok1), s1.section(',',1,1).toInt(&ok2));
     if(!ok1 || !ok2) return v;
     if(ok) *ok = true;
     return v;
 }
 
 ///////////////// Vector2dList
 typedef std::vector<Vector2d, Eigen::aligned_allocator<Vector2d> > Vector2dList;
 
 template<> inline QString typeToString(const Vector2dList& v)
 {
     QString ret;
     for(Vector2dList::const_iterator it = v.begin(); it != v.end(); ++it) {
         if(!ret.isEmpty()) ret += QLatin1String(",");
         ret += QStringLiteral("(%1,%2)").arg((*it)[0]).arg((*it)[1]);
     }
     return ret;
 }
 
 template<> inline Vector2dList stringToType(const QString& s, bool *ok)
 {
     // XXX: Write something better
     Vector2dList ret;
     if(ok) *ok = false;
     QString s1 = s.trimmed();
     if (s1.isEmpty()) {
         if(ok) *ok = true;
         return ret;
     }
     //if(!s1.startsWith('(') || !s1.endsWith(')')) return ret;
     //s1 = s1.mid(1, s1.size()-2).trimmed();
     while(s1[0] == '(' && s1.contains(')')) {
         bool ok; double d1, d2;
         s1 = s1.mid(1);
         d1 = s1.section(',',0,0).toDouble(&ok);
         if(!ok) return Vector2dList();
         s1 = s1.section(',',1);
         d2 = s1.section(')',0,0).toDouble(&ok);
         if(!ok) return Vector2dList();
         s1 = s1.section(')',1).trimmed();
         ret.push_back(Vector2d(d1, d2));
         if(s1.isEmpty()) break;
         if(s1[0] != ',') return Vector2dList();
         s1 = s1.mid(1).trimmed();
     }
     if(!s1.isEmpty()) return Vector2dList();
     if(ok) *ok = true;
     return ret;
 }
 
 } // namespace StepCore
 
 #ifdef STEPCORE_WITH_QT
 Q_DECLARE_METATYPE(StepCore::Vector2dList)
 Q_DECLARE_METATYPE(StepCore::Object*)
 Q_DECLARE_METATYPE(StepCore::Color)
 #endif
 
 
 #endif