src/client/selectionmodelsynchronizer.h

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   2  *   Copyright (C) 2005-08 by the Quassel Project                          *
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  20
  21 #ifndef _SELECTIONMODELSYNCHRONIZER_H_
  22 #define _SELECTIONMODELSYNCHRONIZER_H_
  23
  24 #include <QObject>
  25 #include <QItemSelectionModel>
  26
  27 class QAbstractItemModel;
  28
  29 class SelectionModelSynchronizer : public QObject {
  30   Q_OBJECT
  31
  32 public:
  33   SelectionModelSynchronizer(QAbstractItemModel *parent = 0);
  34
  35   void addSelectionModel(QItemSelectionModel *selectionModel);
  36   void removeSelectionModel(QItemSelectionModel *selectionModel);
  37
  38   inline QAbstractItemModel *model() { return _model; }
  39   inline QItemSelectionModel *selectionModel() const { return const_cast<QItemSelectionModel *>(&_selectionModel); }
  40   inline QModelIndex currentIndex() const { return _selectionModel.currentIndex(); }
  41   inline QItemSelection currentSelection() const { return _selectionModel.selection(); }
  42
  43 signals:
  44   void setCurrentIndex(const QModelIndex &current, QItemSelectionModel::SelectionFlags command);
  45   void select(const QItemSelection &selected, QItemSelectionModel::SelectionFlags command);
  46
  47 private slots:
  48   void mappedCurrentChanged(const QModelIndex &current, const QModelIndex &previous);
  49   void mappedSelectionChanged(const QItemSelection &selected, const QItemSelection &previous);
  50
  51   void setCurrentIndex(const QModelIndex &index);
  52   void setCurrentSelection(const QItemSelection &selection);
  53
  54   void currentChanged(const QModelIndex &current, const QModelIndex &previous);
  55   void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
  56
  57 private:
  58   QAbstractItemModel *_model;
  59   QItemSelectionModel _selectionModel;
  60
  61   bool checkBaseModel(QItemSelectionModel *model);
  62   QModelIndex mapToSource(const QModelIndex &index, QItemSelectionModel *selectionModel);
  63   QItemSelection mapSelectionToSource(const QItemSelection &selection, QItemSelectionModel *selectionModel);
  64
  65
  66 };
  67
  68 #endif