guiEventProcessor.h

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/******************************************************************************
** Copyright (c) 2015 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrfGuiCore/vrfGuiCore.h>
#include <vrvCore/DtEventProcessorInterface.h>

#include <vrvCore/DtSelectionManager.h>
#include <vrvCore/DtElementEntry.h>
#include <vrvUtil/DtVirtualBaseClass.h>

#include <boost/signals2.hpp>

namespace makVrv
{
   class DtOutlinedPolygon;
   class DtDe;
   class DtChannel;
   class DtCachedIntersectorsContainer;
}

namespace makVrf
{
   class DT_DLL_VRFGUICORE DtMousePositionProvider
   {
   public:
      virtual void getCurrentMousePosition(int& x, int& y) = 0;
      virtual void setFreezeMousePosition(bool) = 0;
      virtual bool isShiftKeyDown() const = 0;
      virtual bool isControlKeyDown() const = 0;
      virtual bool isFunctionKeyDown() const = 0;
      virtual bool isAltKeyDown() const = 0;
      virtual double getDpi(std::string& dpiMessage) = 0;
      virtual bool isLeftMouseButtonDown() const = 0;
      virtual bool isRightMouseButtonDown() const = 0;
      virtual bool isMiddleMouseButtonDown() const = 0;
      virtual double devicePixelRatio() const = 0;
   };

   class DT_DLL_VRFGUICORE DtGuiEventProcessor : public makVrv::DtEventProcessorInterface, public makVrv::DtVirtualBaseClass
   {
   public:

      DtGuiEventProcessor(makVrv::DtDe& de);

      virtual ~DtGuiEventProcessor() override;

      virtual void setBlockKeyboardEvents(bool);
      virtual bool blockKeyboardEvents() const;

      virtual bool processMouseEvent(const makVrv::DtMouseEvent& ev, makVrv::DtChannel& channel) override;      
      
      virtual bool processKeyboardEvent(const makVrv::DtKeyEvent& ev, makVrv::DtChannel& channel) override;

      virtual const std::string& className() override; 

      virtual void setCurrentMousePosition(makVrv::DtDe&, int x, int y);
      virtual void setCurrentMousePosition(int x, int y);
      virtual void getCurrentMousePosition(int& x, int& y) const;

      virtual double getDpi(std::string& dpiMessage);

      virtual void setMousePositionProvider(DtMousePositionProvider*);
      virtual DtMousePositionProvider* mousePositionProvider();

      static DtGuiEventProcessor& instance(makVrv::DtDe& de);
      static void registerInstance(makVrv::DtDe&, DtGuiEventProcessor*);

      virtual bool setFreezeMousePosition(bool);
      virtual bool mousePositionFrozen() const;

      virtual bool isShiftKeyDown() const;
      virtual bool isControlKeyDown() const;
      virtual bool isFunctionKeyDown() const;
      virtual bool isAltKeyDown() const;
      virtual bool isLeftMouseButtonDown() const;
      virtual bool isRightMouseButtonDown() const;
      virtual bool isMiddleMouseButtonDown() const;
      virtual double devicePixelRatio() const;

      virtual makVrv::DtCachedIntersectorsContainer& cachedIntersectorManager() const;

      boost::signals2::signal<void ()> signal_escKeyPressed;

   protected:
      virtual void cleanupBox();

      virtual void createBox(makVrv::DtChannel& channel);

      virtual void setBoxFromExtents(makVrv::DtChannel& channel, int anchorX, int anchorY, int toX, int toY);

   protected:
      makVrv::DtDe&  myDe;
      makVrv::DtOutlinedPolygon*    myBox;
      makVrv::DtUniqueID                       myLineId;
      DtMousePositionProvider*               myMousePositionProvider;

      makVrv::DtSelectionManager::IdSet               myCurrentSelections;
      bool myFrozen;

      int                              myInitialMousePositionX;
      int                              myInitialMousePositionY;

      int                       myCurrentMousePositionX;
      int                       myCurrentMousePositionY;
      int                       myBlockKeyboardEvents;
      mutable makVrv::DtCachedIntersectorsContainer* myCachedIntersectorManager = nullptr;
   };
}