MFC - Multiple inheritance and serialization

#pragma once
#include "appdoc.h"

namespace GE_{ namespace App{

	class CAppView :
		public CScrollView,
		public Data::IViewAppQuery
	{
		DECLARE_DYNCREATE(CAppView);
	private:
		Data::QBase0 _pB0Hovered;	//the object the mouse is pointing
		Data::QBase0 _pB0Selected;	//the object selected (will receive commands)
		CRect _rcBounds;
		enum e_mode {
			md_normal,		//normal mode (mouse hovers the objects)
			md_drwdrag,		//mouse drag the selected object
			md_getcoord		//mouse moves in modal loop until the LBUTTON is pressed
		};
		e_mode _mode;			//current mode
		CPoint _pointClicked;	//the licked point
		struct XDrag	//dragging data structure
		{
			CPen pen;			//pen to draw the ghost
			CPoint pointBegin;	//where the drag began
			CRect rectDrag;		//the ghost rectangle
			Mfc::CAutoDC dc;	//DC to draw
			XDrag(CView* pView);
		};
		Safe::PtrStrong<XDrag> _pXDrag;	//normally null but _mode == md_drwdrag
		struct XGetCoord	//get coord data structure
		{
			CPoint pointGotten;
		};
		Safe::PtrStrong<XGetCoord> _pXGetCoord;	//non null when _mode == md_getcoord

		enum e_timers {
			tmr_null,		//no timers
			tmr_hover,		//reset everytime mouse move over an object. expires when the mose stop move
			tmr_longclick	//expires when LBUTTON remain pressed a long
		};
		void _SetHovered(Data::CBase0* pB0, CDC* pDC);		//changes the hovered object
		void _SetSelection(Data::CBase0* pB0, CDC* pDC);	//changes the selected object
		void _OnMouseMoveNormal(CPoint point);		//OnMouseMove in normal mode
		void _OnMouseMoveDrag(CPoint point);		//OnMouseMove in drag mode
		//Data::IViewAppQuery
		virtual CPoint DoClickCoord();		//loops in md_getcoord until a click, and returns the coord.
		virtual void InitCoord(Data::IAppViewable* pAV, CPoint point);	//re-initilize the layout for an object
	public:
		CAppView(void);
		~CAppView(void);
		CAppDoc* GetDocument() { return dynamic_cast<CAppDoc*>(CView::GetDocument()); }
	protected:
		virtual void OnDraw(CDC* pDC);
	public:
		DECLARE_MESSAGE_MAP()
		afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
		afx_msg void OnMouseMove(UINT nFlags, CPoint point);
		afx_msg void OnDestroy();
		afx_msg void OnTimer(UINT nIDEvent);
		afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
		afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
		//afx_msg void OnAddAssembled();
		//afx_msg void OnUpdateAddAssembled(CCmdUI *pCmdUI);
		//afx_msg void OnAddInterm1();
		//afx_msg void OnUpdateAddInterm1(CCmdUI *pCmdUI);
		//afx_msg void OnAddInterm2();
		//afx_msg void OnUpdateAddInterm2(CCmdUI *pCmdUI);
		//afx_msg void OnRemoveItem();
		//afx_msg void OnUpdateRemoveItem(CCmdUI *pCmdUI);
		afx_msg void OnBreakCmd();  //pressed ESC key
		virtual BOOL OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo);
	protected:
		virtual void OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint);
	public:
		virtual void OnPrepareDC(CDC* pDC, CPrintInfo* pInfo = NULL);
	};

}}