TreeModel.hh

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#ifndef TREEMODEL_H
#define TREEMODEL_H

#include <QAbstractItemModel>
#include <QModelIndex>
#include <QVariant>

#include "TreeItem.hh"

class TreeModel : public QAbstractItemModel
{
    Q_OBJECT

signals:
   // the connected TreeView changed data
   void dataChangedInside(int _id, int _column,const QVariant& _value);
   // an object was moved via dragNdrop
   void moveBaseObject(int _id, int _newParentId);

public:

    explicit TreeModel(QObject *_parent = 0);

    ~TreeModel();

//===========================================================================
//===========================================================================

public:

    QVariant data(const QModelIndex &_index,int _role) const;

    Qt::ItemFlags flags(const QModelIndex &_index) const;

    QVariant headerData(int _section,
                        Qt::Orientation _orientation,
                        int _role = Qt::DisplayRole) const;

    QModelIndex index(int _row, int _column,
                      const QModelIndex &_parent = QModelIndex()) const;

    QModelIndex parent(const QModelIndex &_index) const;

    int rowCount(const QModelIndex &_parent = QModelIndex()) const;

    int columnCount(const QModelIndex &_parent = QModelIndex()) const;

    bool setData(const QModelIndex &_index, const QVariant &_value , int _role);

//===========================================================================
//===========================================================================

public:

    QModelIndex getModelIndex(TreeItem* _object, int _column );

    bool isRoot(TreeItem* _item);

    bool getObjectName(TreeItem* _object , QString& _name);

    TreeItem *getItem(const QModelIndex &_index) const;

    TreeItem *getItem(const int _id) const;

    QString itemName(const QModelIndex &_index) const;

    int itemId(const QModelIndex &_index) const;


    void objectChanged(int _id);

    void objectAdded(BaseObject* _object);

    void objectDeleted(int _id);

    void moveItem(TreeItem* _item, TreeItem* _parent );

private:

    TreeItem* rootItem_;

//===========================================================================
//===========================================================================

public:

    Qt::DropActions supportedDropActions() const;

    QStringList mimeTypes() const;

    QMimeData* mimeData(const QModelIndexList& indexes) const;

    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent);

};

#endif