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/TInspector/TInspector_Shortcut.cxx

@@ -0,0 +1,55 @@
+// 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. 
+
+#include <inspector/TInspector_Shortcut.hxx>
+
+#include <inspector/TInspector_Window.hxx>
+
+#include <Standard_WarningsDisable.hxx>
+#include <QApplication>
+#include <QKeyEvent>
+#include <Standard_WarningsRestore.hxx>
+
+// =======================================================================
+// function : Constructor
+// purpose :
+// =======================================================================
+TInspector_Shortcut::TInspector_Shortcut (QObject* theParent, TInspector_Window* theWindow)
+: QObject (theParent), myWindow (theWindow)
+{
+  qApp->installEventFilter (this);
+}
+
+// =======================================================================
+// function : eventFilter
+// purpose :
+// =======================================================================
+bool TInspector_Shortcut::eventFilter (QObject* theObject, QEvent* theEvent)
+{
+  if (!myWindow || theEvent->type() != QEvent::KeyRelease)
+    return QObject::eventFilter (theObject, theEvent);
+
+  QKeyEvent* aKeyEvent = dynamic_cast<QKeyEvent*> (theEvent);
+  switch (aKeyEvent->key())
+  {
+    case Qt::Key_F5:
+    {
+      myWindow->UpdateContent();
+      return true;
+    }
+    default: break;
+  }
+  return QObject::eventFilter (theObject, theEvent);
+}