--- /dev/null
+// Created on: 2017-06-16
+// Created by: Natalia ERMOLAEVA
+// Copyright (c) 2017 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef DFBrowser_ItemBase_H
+#define DFBrowser_ItemBase_H
+
+#include <Standard.hxx>
+#include <TreeModel_ItemBase.hxx>
+#include <TDF_Label.hxx>
+
+class DFBrowser_ItemBase;
+class DFBrowser_Module;
+typedef QExplicitlySharedDataPointer<DFBrowser_ItemBase> DFBrowser_ItemBasePtr;
+
+//! \class DFBrowser_ItemBase
+//! \brief Declaration of the tree model base item.
+//! This item provide method to process a TDF label.
+class DFBrowser_ItemBase : public TreeModel_ItemBase
+{
+public:
+
+ //! Sets the module to have an access to attribute information
+ //! \param theModule a current loaded application module
+ void SetModule (DFBrowser_Module* theModule) { myModule = theModule; }
+
+ //! Resets the cached item values
+ Standard_EXPORT virtual void Reset() Standard_OVERRIDE;
+
+ //! \return true if the current label is not null
+ bool HasLabel() const { return !GetLabel().IsNull(); }
+
+ //! \return the current label
+ Standard_EXPORT virtual TDF_Label GetLabel() const;
+
+ //! \return the current module
+ DFBrowser_Module* GetModule() const { return myModule; }
+
+ //! Change using of additional information in item. It it does not use additional info,
+ //! it will not return extended text in initValue().
+ //! \param theValue a new value
+ //! \return the previous value
+ Standard_EXPORT bool SetUseAdditionalInfo (const bool theValue);
+
+ //! Returns the data stored under the given role for the current item
+ //! \param theIndex the item model index
+ //! \param theRole the item model role
+ Standard_EXPORT virtual QVariant data (const QModelIndex& theIndex, int theRole) const Standard_OVERRIDE;
+
+protected:
+
+ //! Sets the item label
+ //! \param theLabel an object where the child items structure is found
+ void setLabel(TDF_Label theLabel) { myLabel = theLabel; }
+
+ //! Returns if additional information is shown in item for Display and ToolTip values
+ //! \return boolean value
+ bool useAdditionalInfo() const { return myIsUseAdditionalInfo; }
+
+ //! Returns sum of label children and attributes
+ //! \return rows count
+ virtual int initRowCount() const Standard_OVERRIDE;
+
+ //! Returns label information like text, icon or background(if it contains TDataStd_Name attribute)
+ //! \param theItemRole a value role
+ //! \return the value
+ virtual QVariant initValue (const int theItemRole) const Standard_OVERRIDE;
+
+ //! Creates a child item in the given position.
+ //! \param theRow the child row position
+ //! \param theColumn the child column position
+ //! \return the created item
+ virtual TreeModel_ItemBasePtr createChild (int theRow, int theColumn) Standard_OVERRIDE;
+
+ //! Initialize the current item. It creates a backup of the specific item information
+ virtual void initItem() const {};
+
+protected:
+
+ //! Constructor
+ //! param theParent a parent item
+ //! \param theRow the item row positition in the parent item
+ //! \param theColumn the item column positition in the parent item
+ DFBrowser_ItemBase (TreeModel_ItemBasePtr theParent, const int theRow, const int theColumn);
+
+private:
+
+ TDF_Label myLabel; //!< a label of the document, which contains child labels and attributes
+ DFBrowser_Module* myModule; //!< the current module
+ bool myIsUseAdditionalInfo; //!< if true, additional item info is shown in square brackets
+};
+
+#endif
\ No newline at end of file