diff options
Diffstat (limited to 'kmrml/kmrml/mrml_elements.h')
| -rw-r--r-- | kmrml/kmrml/mrml_elements.h | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/kmrml/kmrml/mrml_elements.h b/kmrml/kmrml/mrml_elements.h new file mode 100644 index 00000000..09d2a4a8 --- /dev/null +++ b/kmrml/kmrml/mrml_elements.h @@ -0,0 +1,255 @@ +/* This file is part of the KDE project + Copyright (C) 2002 Carsten Pfeiffer <pfeiffer@kde.org> + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef MRML_ELEMENTS_H +#define MRML_ELEMENTS_H + +#include <qdom.h> +#include <qmap.h> +#include <qstringlist.h> +#include <qvaluelist.h> + +#include "mrml_shared.h" +#include "propertysheet.h" + +#include <assert.h> + +namespace KMrml +{ + class PropertySheet; + + class QueryParadigm + { + public: + QueryParadigm() {} + QueryParadigm( const QDomElement& elem ); + bool matches( const QueryParadigm& other ) const; + QString type() const { return m_type; } + +// bool operator== ( const QueryParadigm& p1, const QueryParadigm& p2 ) + + private: + QString m_type; + QMap<QString,QString> m_attributes; + + static bool equalMaps( const QMap<QString,QString>, + const QMap<QString,QString> ); + }; + + class QueryParadigmList : protected QValueList<QueryParadigm> + { + public: + typedef QValueListIterator<QueryParadigm> Iterator; + typedef QValueListConstIterator<QueryParadigm> ConstIterator; + + void initFromDOM( const QDomElement& elem ); + bool matches( const QueryParadigmList& other ) const; + }; + + class MrmlElement + { + public: + MrmlElement() {} + MrmlElement( const QDomElement& elem ); + virtual ~MrmlElement() {} + + QString id() const { return m_id; } + QString name() const { return m_name; } + QString attribute( const QString& name ) const { return m_attributes[ name ]; } + QueryParadigmList paradigms() const { return m_paradigms; } + + + QMapConstIterator<QString,QString> attributeIterator() const { + return m_attributes.begin(); + } + QMapConstIterator<QString,QString> end() const { return m_attributes.end(); } + + bool isValid() const { return !m_name.isNull() && !m_id.isNull(); } + + protected: + QString m_id; + QString m_name; + QueryParadigmList m_paradigms; + QMap<QString,QString> m_attributes; + + void setOtherAttributes( QDomElement& elem ) const; + }; + + class Algorithm : public MrmlElement + { + public: + Algorithm() { m_collectionId = "adefault"; } + Algorithm( const QDomElement& elem ); + QString type() const { return m_type; } + + QString collectionId() const + { + return m_collectionId; + } + void setCollectionId( const QString& id ) + { + m_collectionId = id; + } + + QDomElement toElement( QDomElement& parent ) const; + const PropertySheet& propertySheet() const; + + static Algorithm defaultAlgorithm(); + + private: + QString m_type; + PropertySheet m_propertySheet; + + QString m_collectionId; + }; + + class Collection : public MrmlElement + { + public: + Collection() {} + Collection( const QDomElement& elem ); + }; + + template <class t> class MrmlElementList : public QValueList<t> + { + public: + typedef QValueListIterator<t> Iterator; + typedef QValueListConstIterator<t> ConstIterator; + + /** + * Creates an invalid element. + */ + MrmlElementList( const QString& tagName ) : + QValueList<t>(), + m_tagName( tagName ) {} + MrmlElementList( const QDomElement& elem, const QString& tagName ) : + QValueList<t>(), + m_tagName( tagName ) + { + initFromDOM( elem ); + } + virtual ~MrmlElementList() {}; + + void initFromDOM( const QDomElement& elem ) + { + assert( !m_tagName.isEmpty() ); + + QValueList<t>::clear(); + + QDomNodeList list = elem.elementsByTagName( m_tagName ); + for ( uint i = 0; i < list.length(); i++ ) + { + QDomElement elem = list.item( i ).toElement(); + t item( elem ); + if ( item.isValid() ) + append( item ); + } + } + + t findByName( const QString& name ) const + { + QValueListConstIterator<t> it = QValueList<t>::begin(); + for ( ; it != QValueList<t>::end(); ++it ) + { + if ( (*it).name() == name ) + return *it; + } + + return t(); + } + + t findById( const QString& id ) const + { + QValueListConstIterator<t> it = QValueList<t>::begin(); + for ( ; it != QValueList<t>::end(); ++it ) + { + if ( (*it).id() == id ) + return *it; + } + + return MrmlElement(); + } + + QStringList itemNames() const { + QStringList list; + QValueListConstIterator<t> it = QValueList<t>::begin(); + for ( ; it != QValueList<t>::end(); ++it ) + list.append( (*it).name() ); + + return list; + } + + void setItemName( const QString& tagName ) { m_tagName = tagName; } + QString tagName() const { return m_tagName; } + + private: + QString m_tagName; + MrmlElementList(); + }; + + class AlgorithmList : public MrmlElementList<Algorithm> + { + public: + AlgorithmList() : + MrmlElementList<Algorithm>( MrmlShared::algorithm() ) + {} + + AlgorithmList algorithmsForCollection( const Collection& coll ) const; + }; + + class CollectionList : public MrmlElementList<Collection> + { + public: + CollectionList() : + MrmlElementList<Collection>( MrmlShared::collection() ) + {} + }; + + + QValueList<QDomElement> directChildElements( const QDomElement& parent, + const QString& tagName); + QDomElement firstChildElement( const QDomElement& parent, + const QString& tagName ); + + + QDataStream& operator<<( QDataStream& stream, const QueryParadigm& ); + QDataStream& operator>>( QDataStream& stream, QueryParadigm& ); + + QDataStream& operator<<( QDataStream& stream, const QueryParadigmList& ); + QDataStream& operator>>( QDataStream& stream, QueryParadigmList& ); + + QDataStream& operator<<( QDataStream& stream, const MrmlElement& ); + QDataStream& operator>>( QDataStream& stream, MrmlElement& ); + + QDataStream& operator<<( QDataStream& stream, const Algorithm& ); + QDataStream& operator>>( QDataStream& stream, Algorithm& ); + + QDataStream& operator<<( QDataStream& stream, const Collection& ); + QDataStream& operator>>( QDataStream& stream, Collection& ); + + template <class t> QDataStream& operator<<( QDataStream&, + const MrmlElementList<t>& ); + template <class t> QDataStream& operator>>( QDataStream&, + MrmlElementList<t>& ); + + QDataStream& operator<<( QDataStream&, const AlgorithmList& ); + QDataStream& operator>>( QDataStream&, AlgorithmList& ); + +} + +#endif // MRML_ELEMENTS_H |