workspace/kcontrol/input/xcursor/sortproxymodel.h

   1 /*
   2  * Copyright © 2006-2007 Fredrik Höglund <fredrik@kde.org>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public
   6  * License version 2 or at your option version 3 as published
   7  * by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; see the file COPYING.  If not, write to
  16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifndef SORTPROXYMODEL_H
  21 #define SORTPROXYMODEL_H
  22
  23 #include <QSortFilterProxyModel>
  24 #include <thememodel.h>
  25
  26 /**
  27  * SortProxyModel is a sorting proxy model intended to be used in combination
  28  * with the ItemDelegate class.
  29  *
  30  * First it compares the Qt::DisplayRoles, and if they match it compares
  31  * the CursorTheme::DisplayDetailRoles.
  32  *
  33  * The model assumes both display roles are QStrings.
  34  */
  35 class SortProxyModel : public QSortFilterProxyModel
  36 {
  37     public:
  38         SortProxyModel(QObject *parent = 0) : QSortFilterProxyModel(parent) {}
  39         ~SortProxyModel() {}
  40         inline const CursorTheme *theme(const QModelIndex &index) const;
  41         inline QModelIndex findIndex(const QString &name) const;
  42         inline QModelIndex defaultIndex() const;
  43         inline void removeTheme(const QModelIndex &index);
  44
  45     private:
  46         int compare(const QModelIndex &left, const QModelIndex &right, int role) const;
  47
  48     protected:
  49         bool lessThan(const QModelIndex &left, const QModelIndex &right) const;
  50 };
  51
  52
  53 const CursorTheme *SortProxyModel::theme(const QModelIndex &index) const
  54 {
  55     CursorThemeModel *model = static_cast<CursorThemeModel*>(sourceModel());
  56     return model->theme(mapToSource(index));
  57 }
  58
  59 QModelIndex SortProxyModel::findIndex(const QString &name) const
  60 {
  61     CursorThemeModel *model = static_cast<CursorThemeModel*>(sourceModel());
  62     return mapFromSource(model->findIndex(name));
  63 }
  64
  65 QModelIndex SortProxyModel::defaultIndex() const
  66 {
  67     CursorThemeModel *model = static_cast<CursorThemeModel*>(sourceModel());
  68     return mapFromSource(model->defaultIndex());
  69 }
  70
  71 void SortProxyModel::removeTheme(const QModelIndex &index)
  72 {
  73     CursorThemeModel *model = static_cast<CursorThemeModel*>(sourceModel());
  74     model->removeTheme(mapToSource(index));
  75 }
  76
  77 #endif // SORTPROXYMODEL_H