src/client/modelpropertymapper.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005-08 by the Quassel Project                          *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #ifndef _MODELPROPERTYMAPPER_H_
  22 #define _MODELPROPERTYMAPPER_H_
  23
  24 #include <QPointer>
  25 #include <QModelIndex>
  26 #include <QObject>
  27
  28 class QAbstractItemModel;
  29 class QItemSelectionModel;
  30
  31
  32 class ModelPropertyMapper : public QObject {
  33   Q_OBJECT
  34
  35 public:
  36   ModelPropertyMapper(QObject *parent = 0);
  37   virtual ~ModelPropertyMapper();
  38
  39   void setModel(QAbstractItemModel *model);
  40   QAbstractItemModel *model() const;
  41
  42   void setSelectionModel(QItemSelectionModel *selectionModel);
  43   QItemSelectionModel *selectionModel() const;
  44
  45   void addMapping(int column, int role, QObject *target, const QByteArray &property);
  46   void removeMapping(int column, int role, QObject *target, const QByteArray &property);
  47
  48 public slots:
  49   void setCurrentIndex(const QModelIndex &current, const QModelIndex &previous);
  50   void setCurrentRow(const QModelIndex &current, const QModelIndex &previous);
  51   void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
  52
  53 private slots:
  54   void targetDestroyed();
  55
  56 private:
  57   struct Mapping {
  58     int column;
  59     int role;
  60     QPointer<QObject> target;
  61     QByteArray property;
  62
  63     Mapping(int _column, int _role, QObject *_target, const QByteArray &_property)
  64       : column(_column), role(_role), target(_target), property(_property) {};
  65     inline bool operator==(const Mapping &other) {
  66       return (column == other.column && role == other.role && target == other.target && property == other.property); }
  67   };
  68
  69   QPointer<QAbstractItemModel> _model;
  70   QPointer<QItemSelectionModel> _selectionModel;
  71   QList<Mapping> _mappings;
  72
  73 };
  74
  75 #endif