mapFocusHandlerManager.h

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/******************************************************************************
** Copyright (c) 2012 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/



#pragma once

#include <vrvUtil/signalslib.h>

#include <vrfGuiCoreQt/vrfGuiCoreQt.h>

#include <QtCore/QObject>
#include <vector>

namespace makVrv
{
   class DtDe;
}

namespace makVrf
{
   class DT_DLL_VRFGUICOREQT DtMapFocusHandler
   {
   public:
      DtMapFocusHandler()
      : myMapFocusSelectedByUser(false)
      {
      }

      virtual ~DtMapFocusHandler()
      {
      }

      virtual void setHasMapFocus(bool) = 0;
      virtual void setCanTakeMapFocus(bool) = 0;
      virtual bool canTakeMapFocus() const = 0;
      virtual bool hasMapFocus() const = 0;

      virtual void clearMapFocusSelectedByUser()
      {
         myMapFocusSelectedByUser = false;
      }

      virtual bool mapFocusSelectedByUser() const
      {
         return myMapFocusSelectedByUser;
      }

      boost::signal<void (DtMapFocusHandler*, bool)> signal_canTakeMapFocusChanged;
      boost::signal<void (DtMapFocusHandler*)> signal_selectionChangedByMapSelection;

   protected:
      bool myMapFocusSelectedByUser;
   };

   class DT_DLL_VRFGUICOREQT DtMapFocusHandlerManager : public QObject
   {
      Q_OBJECT

   public:
      //CTOR
      DtMapFocusHandlerManager(makVrv::DtDe&);

      //DTOR
      virtual ~DtMapFocusHandlerManager();

      virtual void addMapFocusHandler(DtMapFocusHandler*, int index = -1);

      virtual void removeMapFocusHandler(DtMapFocusHandler*);

      virtual void focusToNext();

      virtual void removeAndDisconnectAll();

      virtual void resetFocus();

      virtual void takeMapFocus(DtMapFocusHandler*);

      std::vector<DtMapFocusHandler*>& managedViews() { return myManagedViews; };
      const std::vector<DtMapFocusHandler*>& managedViews() const { return myManagedViews; };

   protected:
      virtual void onCanTakeMapFocusChanged(DtMapFocusHandler*, bool);
      virtual void onSelectionChangedByMapSelection(DtMapFocusHandler*);
      virtual bool eventFilter(QObject *obj, QEvent *ev);

   protected:
      std::vector<DtMapFocusHandler*> myManagedViews;
      makVrv::DtDe& myDe;
   };
}