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KDECore

ksortablevaluelist.h

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00001 /* This file is part of the KDE libraries
00002     Copyright (C) 2001 Carsten Pfeiffer <pfeiffer@kde.org>
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public License
00015     along with this library; see the file COPYING.LIB.  If not, write to
00016     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017     Boston, MA 02110-1301, USA.
00018 */
00019 
00020 #ifndef KSORTABLEVALUELIST_H
00021 #define KSORTABLEVALUELIST_H
00022 
00023 #include <qpair.h>
00024 #include <qvaluelist.h>
00025 #include "kdelibs_export.h"
00026 
00032 template<class T, class Key = int> class KSortableItem : public QPair<Key,T>
00033 {
00034 public:
00040     KSortableItem( Key i, const T& t ) : QPair<Key, T>( i, t ) {}
00045     KSortableItem( const KSortableItem<T, Key> &rhs )
00046         : QPair<Key,T>( rhs.first, rhs.second ) {}
00047 
00051     KSortableItem() {}
00052 
00056     KSortableItem<T, Key> &operator=( const KSortableItem<T, Key>& i ) {
00057         this->first  = i.first;
00058         this->second = i.second;
00059         return *this;
00060     }
00061 
00062     // operators for sorting
00067     bool operator> ( const KSortableItem<T, Key>& i2 ) const {
00068         return (i2.first < this->first);
00069     }
00074     bool operator< ( const KSortableItem<T, Key>& i2 ) const {
00075         return (this->first < i2.first);
00076     }
00081     bool operator>= ( const KSortableItem<T, Key>& i2 ) const {
00082         return (this->first >= i2.first);
00083     }
00088     bool operator<= ( const KSortableItem<T, Key>& i2 ) const {
00089         return !(i2.first < this->first);
00090     }
00095     bool operator== ( const KSortableItem<T, Key>& i2 ) const {
00096         return (this->first == i2.first);
00097     }
00102     bool operator!= ( const KSortableItem<T, Key>& i2 ) const {
00103         return (this->first != i2.first);
00104     }
00105 
00109     T& value() { return this->second; }
00110 
00114     const T& value() const { return this->second; }
00115 
00119     Key index() const { return this->first; }
00120 };
00121 
00122 
00129 template <class T, class Key = int>
00130 class KSortableValueList : public QValueList<KSortableItem<T, Key> >
00131 {
00132 public:
00138     void insert( Key i, const T& t ) {
00139         QValueList<KSortableItem<T, Key> >::append( KSortableItem<T, Key>( i, t ) );
00140     }
00141     // add more as you please...
00142 
00147     T& operator[]( Key i ) {
00148         return QValueList<KSortableItem<T, Key> >::operator[]( i ).value();
00149     }
00150 
00155     const T& operator[]( Key i ) const {
00156         return QValueList<KSortableItem<T, Key> >::operator[]( i ).value();
00157     }
00158 
00162     void sort() {
00163         qHeapSort( *this );
00164     }
00165 };
00166 
00167 // template <class T> class KSortableValueListIterator : public QValueListIterator<KSortableItem<T>  >
00168 // {
00169 // };
00170 
00171 #endif // KSORTABLEVALUELIST_H

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