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Include/Exclude List Boxes

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25 Feb 2000CPOL 122.9K   2.2K   47  
How to package lots of standard functionality into a CListBox derived class.
#ifndef __JB_LIST_BUTTON_LIST__
#define __JB_LIST_BUTTON_LIST__
///////////////////////////////////////////////////////////////////////////////
//
// File           : $Workfile:   JBListButtonList.hpp  $
// Version        : $Revision:   1.0  $
// Function       : A list of buttons which can be enabled or disabled 
//                  together. Intended for use with list box, each button
//                  can be set to become enabled only if a single item is 
//                  selected, only if multiple items are select, if any number
//                  of items are selected, or if there are more than a certain
//                  number of items (selected or not) in the list box.
//
// Author         : $Author:   Len  $
// Date           : $Date:   Dec 29 1997 11:15:16  $
//
// Notes          : 
// 
// Modifications  :
//
// $Log:   D:/Documents/Len/Sources/Stuff/JBListBoxTest/PVCS/JBListButtonList.hpv  $
// 
//    Rev 1.0   Dec 29 1997 11:15:16   Len
// Initial revision.
// 
///////////////////////////////////////////////////////////////////////////////
//
// Copyright 1997 JetByte Limited.
//
// JetByte Limited grants you ("Licensee") a non-exclusive, royalty free, 
// licence to use, modify and redistribute this software in source and binary 
// code form, provided that i) this copyright notice and licence appear on all 
// copies of the software; and ii) Licensee does not utilize the software in a 
// manner which is disparaging to JetByte Limited.
//
// This software is provided "AS IS," without a warranty of any kind. ALL
// EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING 
// ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE 
// OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. JETBYTE LIMITED AND ITS LICENSORS 
// SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF 
// USING, MODIFYING OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO 
// EVENT WILL JETBYTE LIMITED BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, 
// OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE 
// DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING 
// OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN IF JETBYTE LIMITED 
// HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
//
// This software is not designed or intended for use in on-line control of
// aircraft, air traffic, aircraft navigation or aircraft communications; or in
// the design, construction, operation or maintenance of any nuclear
// facility. Licensee represents and warrants that it will not use or
// redistribute the Software for such purposes.
//
///////////////////////////////////////////////////////////////////////////////

#include <afxtempl.h>            // For CTypedPtrList
#include "JBListBox.hpp"

///////////////////////////////////////////////////////////////////////////////
// Namespace: JetByteTools
///////////////////////////////////////////////////////////////////////////////

namespace JetByteTools {

///////////////////////////////////////////////////////////////////////////////
// Classes defined in this file
///////////////////////////////////////////////////////////////////////////////

class CJBListBox::ButtonList;

///////////////////////////////////////////////////////////////////////////////
// CJBListBox::ButtonList
///////////////////////////////////////////////////////////////////////////////

class CJBListBox::ButtonList
{
	public :	

     // Construction and destruction

      ~ButtonList();

      // List maniplulation

		void AddButton(
			CWnd &parentWnd, 
			UINT nButtonID, 
			CJBListBox &theList,
         ItemProcessor *pProcessor = NULL,
         SelectionType_e selection = AnySelection,
			int nItems = 1);

		void AddButton(
			CButton &button, 	
         SelectionType_e selection = AnySelection,
			int nItems = 1);

      // Button manipulation

		void SetButtonState(
         int nItems, 
         int nSelected,
         bool bTopSelected,
         bool bBottomSelected);

      class ListButton;    // Our buttons (this should be private really, but
                           // that causes the message map macros in ListButton
                           // to blow up).
   private :

      class ListNode;      // Our list node class.

      // We're implemented in terms of a CPtrList...

		CTypedPtrList<CPtrList, ListNode *> m_ButtonList;
};

///////////////////////////////////////////////////////////////////////////////
// CJBListBox::ButtonList::ListNode
///////////////////////////////////////////////////////////////////////////////

class CJBListBox::ButtonList::ListNode
{
	public :
		
      // Construction and destruction

		ListNode(
			CButton &theButton, 	
         SelectionType_e selection = AnySelection,
			int nItems = 1);

		ListNode(
			CWnd &parentWnd, 
			UINT nButtonID,
			CJBListBox &theList,
         ItemProcessor *pProcess = NULL,
         SelectionType_e selection = AnySelection,
			int nItems = 1);

		~ListNode();

      // Button manipulation

		void SetButtonState(
         int nItems, 
         int nSelected,
         bool bTopSelected,
         bool bBottomSelected);

	private :

		int m_nItems;
      SelectionType_e m_selection;
      
		bool m_bOurButton;

		CButton *m_pButton;

      // Prevent copying
         
      ListNode(const ListNode &rhs);              // Do not implement
      ListNode &operator=(const ListNode &rhs);   // Do not implement
};

///////////////////////////////////////////////////////////////////////////////
// Namespace: JetByteTools
///////////////////////////////////////////////////////////////////////////////

} // End of namespace JetByteTools 

#endif // __JB_LIST_BUTTON_LIST__

///////////////////////////////////////////////////////////////////////////////
// End of file
///////////////////////////////////////////////////////////////////////////////

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


Written By
Software Developer (Senior) JetByte Limited
United Kingdom United Kingdom
Len has been programming for over 30 years, having first started with a Sinclair ZX-80. Now he runs his own consulting company, JetByte Limited and has a technical blog here.

JetByte provides contract programming and consultancy services. We can provide experience in COM, Corba, C++, Windows NT and UNIX. Our speciality is the design and implementation of systems but we are happy to work with you throughout the entire project life-cycle. We are happy to quote for fixed price work, or, if required, can work for an hourly rate.

We are based in London, England, but, thanks to the Internet, we can work 'virtually' anywhere...

Please note that many of the articles here may have updated code available on Len's blog and that the IOCP socket server framework is also available in a licensed, much improved and fully supported version, see here for details.

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