153 lines
3.6 KiB
C++
153 lines
3.6 KiB
C++
/*
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* NOTMGR.C
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*
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* Purpose:
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* Notification Manager implemenation
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*
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* Author:
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* AlexGo 6/5/95
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*
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* Copyright (c) 1995-1997, Microsoft Corporation. All rights reserved.
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*/
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#include "_common.h"
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#include "_notmgr.h"
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ASSERTDATA
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/*
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* CNotifyMgr::CNotifyMgr ()
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*/
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CNotifyMgr::CNotifyMgr()
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{
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TRACEBEGIN(TRCSUBSYSNOTM, TRCSCOPEINTERN, "CNotifyMgr::CNotifyMgr");
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_pitnlist = NULL;
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}
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/*
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* CNotifyMgr::~CNotifyMgr ()
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*
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*/
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CNotifyMgr::~CNotifyMgr()
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{
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TRACEBEGIN(TRCSUBSYSNOTM, TRCSCOPEINTERN, "CNotifyMgr::~CNotifyMgr");
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ITxNotify *plist;
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for( plist = _pitnlist; plist != NULL; plist = plist->_pnext )
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{
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plist->Zombie();
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}
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TRACEERRSZSC("CNotifyMgr::~CNotifyMgr(): zombie(s) exist", _pitnlist != 0);
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}
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/*
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* CNotifyMgr::Add (pITN)
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*
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* @mfunc
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* Adds a notification sink to the list
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*
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* Algorithm:
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* puts the entry at the *front* of the notification list, so
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* that high frequency entries (like ranges and text pointers
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* existing on the stack) can be added and removed efficiently
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*/
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void CNotifyMgr::Add(
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ITxNotify *pITN )
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{
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TRACEBEGIN(TRCSUBSYSNOTM, TRCSCOPEINTERN, "CNotifyMgr::Add");
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pITN->_pnext = _pitnlist;
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_pitnlist = pITN;
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}
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/*
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* CNotifyMgr::Remove (pITN)
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*
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* @mfunc
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* removes a notification sink from the list
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*/
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void CNotifyMgr::Remove(
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ITxNotify *pITN )
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{
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TRACEBEGIN(TRCSUBSYSNOTM, TRCSCOPEINTERN, "CNotifyMgr::Remove");
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ITxNotify *plist = _pitnlist;
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ITxNotify **ppprev = &_pitnlist;
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while(plist)
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{
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if( plist == pITN )
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{
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*ppprev = plist->_pnext;
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break;
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}
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ppprev = &(plist->_pnext);
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plist = plist->_pnext;
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}
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}
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/*
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* CNotifyMgr::NotifyPreReplaceRange (pITNignore, cp, cchDel, cchNew, cpFormatMin, cpFormatMax, dwFlags)
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*
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* @mfunc
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* send an OnReplaceRange notification to all sinks (except pITNignore)
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*/
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void CNotifyMgr::NotifyPreReplaceRange(
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ITxNotify * pITNignore, //@parm Notification sink to ignore
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LONG cp, //@parm cp where ReplaceRange starts ("cpMin")
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LONG cchDel, //@parm Count of chars after cp that are deleted
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LONG cchNew, //@parm Count of chars inserted after cp
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LONG cpFormatMin, //@parm cpMin for a formatting change
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LONG cpFormatMax, //@parm cpMost for a formatting change
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NOTIFY_DATA *pNotifyData) //@parm special data to indicate changes
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{
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TRACEBEGIN(TRCSUBSYSNOTM, TRCSCOPEINTERN, "CNotifyMgr::NotifyPreReplaceRange");
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ITxNotify *plist;
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for( plist = _pitnlist; plist != NULL; plist = plist->_pnext )
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{
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if( plist != pITNignore )
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{
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plist->OnPreReplaceRange( cp, cchDel, cchNew, cpFormatMin,
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cpFormatMax, pNotifyData );
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}
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}
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}
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/*
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* CNotifyMgr::NotifyPostReplaceRange (pITNignore, cp, cchDel, cchNew, cpFormatMin, cpFormatMax, dwFlags)
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*
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* @mfunc
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* send an OnReplaceRange notification to all sinks (except pITNignore)
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*
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* @comm
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* pITNignore typically is the TxtPtr/etc that is actually making the
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* ReplaceRange modification
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*/
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void CNotifyMgr::NotifyPostReplaceRange(
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ITxNotify * pITNignore, //@parm Notification sink to ignore
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LONG cp, //@parm cp where ReplaceRange starts ("cpMin")
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LONG cchDel, //@parm Count of chars after cp that are deleted
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LONG cchNew, //@parm Count of chars inserted after cp
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LONG cpFormatMin, //@parm cpMin for a formatting change
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LONG cpFormatMax, //@parm cpMost for a formatting change
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NOTIFY_DATA *pNotifyData) //@parm special data to indicate changes
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{
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TRACEBEGIN(TRCSUBSYSNOTM, TRCSCOPEINTERN, "CNotifyMgr::NotifyPostReplaceRange");
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ITxNotify *plist;
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for( plist = _pitnlist; plist != NULL; plist = plist->_pnext )
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{
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if( plist != pITNignore )
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{
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plist->OnPostReplaceRange( cp, cchDel, cchNew, cpFormatMin,
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cpFormatMax, pNotifyData );
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}
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}
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}
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