ngcmdtargetlist.cpp

ResOrg 图形化管理Vc项目的资源ID的工具的源代码。 ResOrg - Manage and Renumber Resource Symbol IDs Introduction The

////////////////////////////////////////////////////////////////
// CCmdTargetList Copyright 1999 by Anna-Jayne Metcalfe ([e-mail])
//
// CmdTargetList.cpp : implementation file
//

#include "stdafx.h"
#include "NGCmdTargetList.h"


#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif


/////////////////////////////////////////////////////////////////////////////
// CNGCmdTargetList class

CNGCmdTargetList::CNGCmdTargetList(void)
{
}


CNGCmdTargetList::~CNGCmdTargetList(void)
{
}


/******************************************************************************
 *	Add a command target
 *
 ******************************************************************************/

BOOL CNGCmdTargetList::Add(CCmdTarget* pTarget)
{
	ASSERT_VALID(pTarget);
	BOOL bResult = FALSE;
	if (NULL != pTarget)
	{
		ASSERT_KINDOF(CCmdTarget, pTarget);
		if (pTarget->IsKindOf(RUNTIME_CLASS(CCmdTarget)))
		{
			POSITION pos = m_listCmdTargets.Find(pTarget);
			if (NULL == pos)
			{
				m_listCmdTargets.AddTail(pTarget);
				bResult = TRUE;
			}
		}
	}
	return bResult;
}


/******************************************************************************
 *	Remove a command target
 *
 ******************************************************************************/

BOOL CNGCmdTargetList::Remove(CCmdTarget* pTarget)
{
	ASSERT_VALID(pTarget);
	BOOL bResult = FALSE;
	if (NULL != pTarget)
	{
		ASSERT_KINDOF(CCmdTarget, pTarget);
		if (pTarget->IsKindOf(RUNTIME_CLASS(CCmdTarget)))
		{
			POSITION pos = m_listCmdTargets.Find(pTarget);
			if (NULL != pos)
			{
				m_listCmdTargets.RemoveAt(pos);
				bResult = TRUE;
			}
		}
	}
	return bResult;
}


/******************************************************************************
 *	Remove ALL command targets
 *
 ******************************************************************************/

BOOL CNGCmdTargetList::RemoveAll(void)
{
	BOOL bResult = !m_listCmdTargets.IsEmpty();
	m_listCmdTargets.RemoveAll();

	return bResult;
}


/******************************************************************************
 *	Handle all messages
 *
 ******************************************************************************/

BOOL CNGCmdTargetList::OnCmdMsg(UINT uID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo)
{
	// See if any of our registered targets wants to handle it
	POSITION pos = m_listCmdTargets.GetHeadPosition();
	while (NULL != pos)
	{
		CCmdTarget* pTarget = m_listCmdTargets.GetNext(pos);
		if ( (NULL != pTarget) && (pTarget->OnCmdMsg(uID, nCode, pExtra, pHandlerInfo)) )
		{
			return TRUE;						// Stop routing once message has been handled
		}
	}
	return FALSE;
}