diff options
Diffstat (limited to 'depends/groupview/src/categorizedsortfilterproxymodel.cpp')
| -rw-r--r-- | depends/groupview/src/categorizedsortfilterproxymodel.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/depends/groupview/src/categorizedsortfilterproxymodel.cpp b/depends/groupview/src/categorizedsortfilterproxymodel.cpp new file mode 100644 index 00000000..09da9dd3 --- /dev/null +++ b/depends/groupview/src/categorizedsortfilterproxymodel.cpp @@ -0,0 +1,168 @@ +/** + * This file is part of the KDE project + * Copyright (C) 2007 Rafael Fernández López <ereslibre@kde.org> + * Copyright (C) 2007 John Tapsell <tapsell@kde.org> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#include "categorizedsortfilterproxymodel.h" +#include "categorizedsortfilterproxymodel_p.h" + +#include <limits.h> + +#include <QItemSelection> +#include <QStringList> +#include <QSize> + +KCategorizedSortFilterProxyModel::KCategorizedSortFilterProxyModel ( QObject *parent ) + : QSortFilterProxyModel ( parent ) + , d ( new Private() ) +{ +} + +KCategorizedSortFilterProxyModel::~KCategorizedSortFilterProxyModel() +{ + delete d; +} + +void KCategorizedSortFilterProxyModel::sort ( int column, Qt::SortOrder order ) +{ + d->sortColumn = column; + d->sortOrder = order; + + QSortFilterProxyModel::sort ( column, order ); +} + +bool KCategorizedSortFilterProxyModel::isCategorizedModel() const +{ + return d->categorizedModel; +} + +void KCategorizedSortFilterProxyModel::setCategorizedModel ( bool categorizedModel ) +{ + if ( categorizedModel == d->categorizedModel ) + { + return; + } + + d->categorizedModel = categorizedModel; + + invalidate(); +} + +int KCategorizedSortFilterProxyModel::sortColumn() const +{ + return d->sortColumn; +} + +Qt::SortOrder KCategorizedSortFilterProxyModel::sortOrder() const +{ + return d->sortOrder; +} + +void KCategorizedSortFilterProxyModel::setSortCategoriesByNaturalComparison ( bool sortCategoriesByNaturalComparison ) +{ + if ( sortCategoriesByNaturalComparison == d->sortCategoriesByNaturalComparison ) + { + return; + } + + d->sortCategoriesByNaturalComparison = sortCategoriesByNaturalComparison; + + invalidate(); +} + +bool KCategorizedSortFilterProxyModel::sortCategoriesByNaturalComparison() const +{ + return d->sortCategoriesByNaturalComparison; +} + +bool KCategorizedSortFilterProxyModel::lessThan ( const QModelIndex &left, const QModelIndex &right ) const +{ + if ( d->categorizedModel ) + { + int compare = compareCategories ( left, right ); + + if ( compare > 0 ) // left is greater than right + { + return false; + } + else if ( compare < 0 ) // left is less than right + { + return true; + } + } + + return subSortLessThan ( left, right ); +} + +bool KCategorizedSortFilterProxyModel::subSortLessThan ( const QModelIndex &left, const QModelIndex &right ) const +{ + return QSortFilterProxyModel::lessThan ( left, right ); +} + +int KCategorizedSortFilterProxyModel::compareCategories ( const QModelIndex &left, const QModelIndex &right ) const +{ + QVariant l = ( left.model() ? left.model()->data ( left, CategorySortRole ) : QVariant() ); + QVariant r = ( right.model() ? right.model()->data ( right, CategorySortRole ) : QVariant() ); + + Q_ASSERT ( l.isValid() ); + Q_ASSERT ( r.isValid() ); + Q_ASSERT ( l.type() == r.type() ); + + if ( l.type() == QVariant::String ) + { + QString lstr = l.toString(); + QString rstr = r.toString(); + + /* + if ( d->sortCategoriesByNaturalComparison ) + { + return KStringHandler::naturalCompare ( lstr, rstr ); + } + else + { + */ + if ( lstr < rstr ) + { + return -1; + } + + if ( lstr > rstr ) + { + return 1; + } + + return 0; + //} + } + + qlonglong lint = l.toLongLong(); + qlonglong rint = r.toLongLong(); + + if ( lint < rint ) + { + return -1; + } + + if ( lint > rint ) + { + return 1; + } + + return 0; +} |