0029674: Improvements in Inspector tool

- preferences for dock windows geometry, tree view columns and current view projection;
- ViewControl package for common functionality between plugins;
- processing Location and Orientation for external TopoDS_Shape object
- 'F5' key to update content of each plugin
- visibility column in tree view (used now only in ShapeView)
- properties child item for context (presents tree of current Filters of context)

tools/ShapeView/ShapeView_VisibilityState.hxx

@@ -0,0 +1,76 @@
+// 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 ShapeView_VisibilityState_H
+#define ShapeView_VisibilityState_H
+
+#include <inspector/TreeModel_VisibilityState.hxx>
+
+#include <inspector/View_Displayer.hxx>
+
+#include <Standard.hxx>
+#include <Standard_Macro.hxx>
+#include <TopoDS_Shape.hxx>
+
+class TreeModel_ModelBase;
+
+//! \class ShapeView_VisibilityState
+//! \brief Class provides connection between model and visualization control
+class ShapeView_VisibilityState : public TreeModel_VisibilityState
+{
+public:
+  //! Constructor
+  ShapeView_VisibilityState (TreeModel_ModelBase* theModel) : TreeModel_VisibilityState (theModel),
+  myPresentationType (View_PresentationType_Main) {}
+
+  //! Destructor
+  ~ShapeView_VisibilityState() {}
+
+  //! Sets current displayer
+  //! \theDisplayer class that provides connection to visualized objects
+  void SetDisplayer (View_Displayer* theDisplayer) { myDisplayer = theDisplayer; }
+
+  //! Sets presentation type for displayer
+  //! \param theType type value
+  void SetPresentationType (const View_PresentationType theType) { myPresentationType = theType; }
+
+  //! Returns true if visibility of the item can be changed
+  //! \param theIndex tree model index
+  //! \return boolean value
+  virtual bool CanBeVisible (const QModelIndex& theIndex) const Standard_OVERRIDE { return !GetShape (theIndex).IsNull(); }
+
+  //! Sets visibility state
+  //! \theIndex tree model index
+  //! \param theState visibility state
+  //! \param toEmitDataChanged boolean flag whether emit of the model should be done immediatelly
+  //! \return true if state is changed
+  Standard_EXPORT virtual bool SetVisible (const QModelIndex& theIndex, const bool theState, const bool toEmitDataChanged) Standard_OVERRIDE;
+
+  //! Returns visibility state value
+  virtual bool IsVisible (const QModelIndex& theIndex) const Standard_OVERRIDE
+  { return myDisplayer->IsVisible (GetShape (theIndex), myPresentationType); }
+
+protected:
+  //! Gets shape of the view model by the parameter index if it has a shape
+  //! \param theIndex tree model index
+  //! \return shape instance
+  TopoDS_Shape GetShape (const QModelIndex& theIndex) const;
+
+private:
+  View_Displayer* myDisplayer; //! view displayer
+  View_PresentationType myPresentationType; //! presentation type
+};
+
+#endif