+class ModuleBase_IDocumentDataModel;
+class XGUI_DataModel;
+class Config_DataModelReader;
+class XGUI_Workshop;
+class ModuleBase_ITreeNode;
+
+//#define DEBUG_INDXES
+
+/**
+* \ingroup GUI
+* Implementation of root label in Object Browser
+*/
+class XGUI_ActiveDocLbl: public QLabel
+{
+Q_OBJECT
+ public:
+ /// Constructor
+ /// \param theText a text
+ /// \param theParent a parent widget
+ XGUI_ActiveDocLbl(const QString& theText, QWidget* theParent );
+
+ /// Sets tree view
+ /// \param theView a view
+ void setTreeView(QTreeView* theView);
+
+ /// Returns tree view
+ QTreeView* treePalette() const { return myTreeView;}
+
+#if (!defined HAVE_SALOME) && (defined WIN32)
+ virtual bool event(QEvent* theEvent);
+#endif
+
+public slots:
+ /// On unselect
+ void unselect();
+
+protected:
+ /// On mouse release
+ virtual void mouseReleaseEvent( QMouseEvent* e);
+
+ /// Filter event
+ bool eventFilter(QObject* theObj, QEvent* theEvent);
+
+private:
+ QString myPreSelectionStyle;
+ QString myNeutralStyle;
+ QString mySelectionStyle;
+
+ QTreeView* myTreeView;
+ bool myIsSelected;
+};
+
+
+/**
+* \ingroup GUI
+* Implementation of Data Tree object for Object Browser
+*/
+class XGUI_EXPORT XGUI_DataTree : public QTreeView
+{
+Q_OBJECT
+ public:
+ /// Constructor
+ /// \param theParent a parent widget
+ XGUI_DataTree(QWidget* theParent);
+
+ virtual ~XGUI_DataTree();
+
+ /// Returns current data model
+ XGUI_DataModel* dataModel() const;
+
+signals:
+ //! Emited on context menu request
+ void contextMenuRequested(QContextMenuEvent* theEvent);
+
+public slots:
+ /// Clear content of data tree
+ virtual void clear();
+
+ protected slots:
+ /// Commit modified data (used for renaming of objects)
+ virtual void commitData(QWidget* theEditor);
+
+ /// A slot which is called on mouse double click
+ void onDoubleClick(const QModelIndex&);
+
+ protected:
+ /// Redefinition of virtual method
+ virtual void contextMenuEvent(QContextMenuEvent* theEvent);
+
+ /// Redefinition of virtual method
+ virtual void resizeEvent(QResizeEvent* theEvent);
+
+ /// Redefinition of virtual method
+ virtual void mouseReleaseEvent(QMouseEvent* theEvent);
+
+#ifdef DEBUG_INDXES
+ virtual void mousePressEvent(QMouseEvent* theEvent);
+#endif
+
+private:
+ /// Process a history change request
+ /// \param theIndex a clicked data index
+ void processHistoryChange(const QModelIndex& theIndex);
+
+ /// Process a visibility change request
+ /// \param theIndex a clicked data index
+ void processEyeClick(const QModelIndex& theIndex);
+};