File indexing completed on 2024-06-23 05:28:19 

0001 /*
0002 This file is part of LightDM-KDE.
0003 
0004 Copyright 2011, 2012 David Edmundson <kde@davidedmundson.co.uk>
0005 
0006 LightDM-KDE is free software: you can redistribute it and/or modify
0007 it under the terms of the GNU General Public License as published by
0008 the Free Software Foundation, either version 3 of the License, or
0009 (at your option) any later version.
0010 
0011 LightDM-KDE is distributed in the hope that it will be useful,
0012 but WITHOUT ANY WARRANTY; without even the implied warranty of
0013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0014 GNU General Public License for more details.
0015 
0016 You should have received a copy of the GNU General Public License
0017 along with LightDM-KDE.  If not, see <http://www.gnu.org/licenses/>.
0018 */
0019 #ifndef EXTRAROWPROXYMODEL_H
0020 #define EXTRAROWPROXYMODEL_H
0021 
0022 #include <QSortFilterProxyModel>
0023 #include <QHash>
0024 #include <QVector>
0025 #include <QWeakPointer>
0026 #include <QStandardItemModel>
0027 
0028 /**
0029  * A proxy model which makes it possible to append extra rows at the end
0030  */
0031 class ExtraRowProxyModel : public QAbstractListModel
0032 {
0033     Q_OBJECT
0034 public:
0035     ExtraRowProxyModel(QObject *parent = 0);
0036 
0037     int rowCount(const QModelIndex &parent = QModelIndex()) const; // reimp
0038     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const; // reimp
0039 
0040     void setSourceModel(QAbstractItemModel* model);
0041 
0042     /** Returns a pointer to the extra row model, which can be edited as appropriate*/
0043     QStandardItemModel* extraRowModel() const;
0044 
0045 private slots:
0046     void onSourceRowsInserted(const QModelIndex &parent,int start,int end);
0047     void onSourceRowsRemoved(const QModelIndex &parent,int start,int end);
0048     void onSourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
0049 
0050     void onExtraRowsInserted(const QModelIndex &parent,int start,int end);
0051     void onExtraRowsRemoved(const QModelIndex &parent,int start,int end);
0052     void onExtraDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
0053 
0054 
0055 private:
0056     int sourceRowCount() const;
0057 
0058     QWeakPointer<QAbstractItemModel> m_model;
0059     QStandardItemModel *m_extraRowModel;
0060 };
0061 
0062 #endif /* EXTRAROWPROXYMODEL_H */