src/client/modelpropertymapper.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005-07 by The Quassel Team                             *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
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   8  *   (at your option) any later version.                                   *
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  10  *   This program is distributed in the hope that it will be useful,       *
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  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
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  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 setCurrentRow(const QModelIndex &current, const QModelIndex &previous);
  50
  51 private slots:
  52   void targetDestroyed();
  53
  54 private:
  55   struct Mapping {
  56     int column;
  57     int role;
  58     QPointer<QObject> target;
  59     QByteArray property;
  60
  61     Mapping(int _column, int _role, QObject *_target, const QByteArray &_property)
  62       : column(_column), role(_role), target(_target), property(_property) {};
  63     inline bool operator==(const Mapping &other) {
  64       return (column == other.column && role == other.role && target == other.target && property == other.property); }
  65   };
  66
  67   QPointer<QAbstractItemModel> _model;
  68   QPointer<QItemSelectionModel> _selectionModel;
  69   QList<Mapping> _mappings;
  70
  71 };
  72
  73 #endif