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The SBJ MVC Framework - The Design View, Responding to Model Change

, 19 Mar 2009 CPOL
A Model-View-Controller Framework that integrates with the MFC Doc/View architecture.
SbjDevBin202.zip
XmlMvc2090.dll
Shapes.exe
SbjCore2090.dll
SbjDevSrc202.zip
SbjCore
res
bigcat.ico
main.bmp
properties.bmp
properties_hc.bmp
properties_wnd_hc.ico
Shapes
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buttons.bmp
filelarge.bmp
filesmall.bmp
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main.bmp
Shapes.ico
ShapesDoc.ico
Toolbar.bmp
Toolbar256.bmp
treeimages.bmp
Write - Copy.png
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writelarge.bmp
writesmall - Copy.bmp
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XmlMvc
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CommonSettings.vsprops
CommonAppReleaseSettings.vsprops
CommonAppDebugSettings.vsprops
CommonDLLDebugSettings.vsprops
CommonDLLReleaseSettings.vsprops
//------------------------------------------------------------------------------
// $Workfile: CmdMsgHandler.h $
// $Header:  $
//
//	Copyright � 2008 SbjCat
// All rights reserved.
//
//
// *** Authors ***
//	 Steve Johnson
//
// $Revision: $
//
//-----------------------------------------------------------------------------

#pragma once

#include "MessageHandler.h"
#include "CmdTargetController.h"

namespace SbjCore
{
	namespace Mvc
	{
		class CmdTargetController;

		/**
		CmdMsgHandler is an abstract class derived from MessageHandler 
		for handling WM_COMMAND messages in the Mvc Framework.  For 
		information on how message handling differs in the Mvc framework 
		from that in the MFC framework, see the Mvc overview. 

		CmdMsgHandler objects are added to the handler map maintained 
		by CmdTargetController and derivative classes.  They are keyed by 
		the message ID(s) they handle. 

		The CmdTargetController calls the CmdMsgHandler's public methods 
		for handling not only the Cmd, but also the CmdUI messages. 

		CmdMsgHandler public methods in turn call virtual private methods 
		that are overridden in derived classes.  These private methods are 
		where the messages are actually handled; whether by default 
		implementation in the CmdMsgHandler class itself or the implementation 
		in the derived class. 

		The private OnHandleCmd method is a pure virtual and must be 
		implemented in the derived class.  The OnHandleCmdUI method has a 
		default implementation that returns true for the Enable method of 
		the CCmdUI object it handles.  

		To support the functionality derived from its base MessageHandler
		class for the chaining of handlers, derived OnHandleCmd and 
		OnHandleCmdUI methods should call the public methods HandleCmdPrev
		and HandleCmdUIPrev as appropriate.

		*/
		class AFX_EXT_CLASS CmdMsgHandler : public MessageHandler
		{
		public:
			virtual ~CmdMsgHandler();
			
			CmdTargetController* GetController() const;
		public:
			bool HandleCmd(UINT nID);
			bool HandleCmdUI(CCmdUI* pCmdUI);
			bool HandleCmdPrev(UINT nID);
			bool HandleCmdUIPrev(CCmdUI* pCmdUI);
		private:
			virtual bool OnHandleCmd(UINT nID) = 0;								
			virtual bool OnHandleCmdUI(CCmdUI* pCmdUI);
		};
	}		
}

//*** Modification History ***
// $Log:  $

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

SBJ

United States United States
Real name is Steve Johnson. Programming since 1979. Started on a Heathkit Micro with a DEC LSI-11 and UCSD Pascal. Moved to PCs & DOS as soon as Turbo Pascal became available. Did some Assembly, ISR, TSR etc. All this while working for a Manufacturing Co. for 8 years. Had my own solo Co. doing barcode labeling software for 4 years (terrible business man, all I wanted to do was code). Since then working for various software companies. Moved to Windows around the time of 3.1 with Borland C then C++. Then on to VC++ and MFC, and just about anything I could get my hands on or had to learn for my job, and been at it ever since. Of course recently I've been playing with .NET, ASP, C#, WPF etc.

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