2 #ifndef XGUI_DocumentDataModel_H
3 #define XGUI_DocumentDataModel_H
6 #include "XGUI_Constants.h"
8 #include <QAbstractItemModel>
9 #include <Event_Listener.h>
13 class ModelAPI_Document;
15 class XGUI_TopDataModel;
17 /**\class XGUI_DocumentDataModel
19 * \brief This is a proxy data model for Object Browser (QTreeView).
20 * It contains several sub-models for generation of each sub-part of data tree.
22 class XGUI_EXPORT XGUI_DocumentDataModel : public QAbstractItemModel, public Event_Listener
28 XGUI_DocumentDataModel(QObject* theParent);
29 virtual ~XGUI_DocumentDataModel();
31 // Event Listener method
32 virtual void processEvent(const Event_Message* theMessage);
35 virtual QVariant data(const QModelIndex& theIndex, int theRole) const;
36 virtual QVariant headerData(int theSection, Qt::Orientation theOrient,
37 int theRole = Qt::DisplayRole) const;
39 virtual int rowCount(const QModelIndex& theParent = QModelIndex()) const;
40 virtual int columnCount(const QModelIndex& theParent = QModelIndex()) const;
42 virtual QModelIndex index(int theRow, int theColumn,
43 const QModelIndex &parent = QModelIndex()) const;
45 virtual QModelIndex parent(const QModelIndex& theIndex) const;
47 virtual bool hasChildren(const QModelIndex& theParent = QModelIndex()) const;
49 //! Returns Feature object by the given Model index.
50 //! Returns 0 if the given index is not index of a feature
51 FeaturePtr feature(const QModelIndex& theIndex) const;
55 //! Converts QModelIndex of this model to QModelIndex of a one of sub-models.
56 QModelIndex toSourceModelIndex(const QModelIndex& theProxy) const;
58 //! Finds a pointer on QModelIndex which is equal to the given one
59 QModelIndex* findModelIndex(const QModelIndex& theIndex) const;
61 //! Returns pointer on QModelIndex which is equal to the given one.
62 QModelIndex* getModelIndex(const QModelIndex& theIndex) const;
64 //! Deletes all saved pointers on QModelIndex objects.
65 void clearModelIndexes();
67 //! Causes inserting of new nodes for given parent and indexes
68 void insertRows(const QModelIndex& theParent, int theStart, int theEnd);
70 //! Removes sub-model on removing a part object. Also it removes QModelIndex-es which refer to this model
71 void removeSubModel(int theModelId);
74 bool hasSubModel(const QAbstractItemModel* theModel) const;
77 boost::shared_ptr<ModelAPI_Document> myDocument;
79 //! Data model of top part of data tree (not parts object)
80 XGUI_TopDataModel* myModel;
82 //! Data models for Parts data tree representation (one data model per a one part)
83 QList<XGUI_PartModel*> myPartModels;
85 //! List of saved QModelIndexes created by sub-models
86 QList<QModelIndex*> myIndexes;