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/ViewControl/ViewControl_TreeView.hxx

@@ -0,0 +1,51 @@
+// 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 ViewControl_TreeView_H
+#define ViewControl_TreeView_H
+
+#include <Standard.hxx>
+
+#include <Standard_WarningsDisable.hxx>
+#include <QSize>
+#include <QTreeView>
+#include <Standard_WarningsRestore.hxx>
+
+class QWidget;
+
+//! \class ViewControl_TreeView
+//! Extended tree view control with possibility to set predefined size.
+class ViewControl_TreeView : public QTreeView
+{
+public:
+  //! Constructor
+  ViewControl_TreeView (QWidget* theParent) : QTreeView (theParent) {}
+
+  //! Destructor
+  virtual ~ViewControl_TreeView() {}
+
+  //! Sets default size of control, that is used by the first control show
+  //! \param theDefaultWidth the width value
+  //! \param theDefaultHeight the height value
+  void SetPredefinedSize (const QSize& theSize) { myDefaultSize = theSize;}
+
+  //! Returns predefined size if both values are positive, otherwise parent size hint
+  virtual QSize sizeHint() const Standard_OVERRIDE { return myDefaultSize.isValid() ? myDefaultSize : QTreeView::sizeHint(); }
+
+private:
+  QSize myDefaultSize; //! default size, empty isze if it should not be used
+};
+
+#endif