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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _SFXCANCEL_HXX
#define _SFXCANCEL_HXX
#include "svl/svldllapi.h"
#include <tools/string.hxx>
#include <tools/ref.hxx>
#include <svl/brdcst.hxx>
#include <svl/smplhint.hxx>
class SfxCancellable;
#ifdef _SFX_CANCEL_CXX
#include <svl/svarray.hxx>
SV_DECL_PTRARR( SfxCancellables_Impl, SfxCancellable*, 0, 4 )
#else
typedef SvPtrarr SfxCancellables_Impl;
#endif
//-------------------------------------------------------------------------
class SVL_DLLPUBLIC SfxCancelManager: public SfxBroadcaster
, public SvWeakBase
/* [Beschreibung]
An Instanzen dieser Klasse k"onnen nebenl"aufige Prozesse angemeldet
werden, um vom Benutzer abbrechbar zu sein. Werden abbrechbare
Prozesse (Instanzen von <SfxCancellable>) an- oder abgemeldet, wird
dies durch einen <SfxSimpleHint> mit dem Flag SFX_HINT_CANCELLABLE
gebroadcastet.
SfxCancelManager k"onnen hierarchisch angeordnet werden, so k"onnen
z.B. Dokument-lokale Prozesse getrennt gecancelt werden.
[Beispiel]
SfxCancelManager *pMgr = new SfxCancelManager;
StartListening( pMgr );
pMailSystem->SetCancelManager( pMgr )
*/
{
SfxCancelManager* _pParent;
SfxCancellables_Impl _aJobs;
public:
SfxCancelManager( SfxCancelManager *pParent = 0 );
~SfxCancelManager();
BOOL CanCancel() const;
void Cancel( BOOL bDeep );
SfxCancelManager* GetParent() const { return _pParent; }
void InsertCancellable( SfxCancellable *pJob );
void RemoveCancellable( SfxCancellable *pJob );
USHORT GetCancellableCount() const
{ return _aJobs.Count(); }
SfxCancellable* GetCancellable( USHORT nPos ) const
{ return (SfxCancellable*) _aJobs[nPos]; }
};
SV_DECL_WEAK( SfxCancelManager )
//-------------------------------------------------------------------------
class SVL_DLLPUBLIC SfxCancellable
/* [Beschreibung]
Instanzen dieser Klasse werden immer an einem Cancel-Manager angemeldet,
der dadurch dem Benutzer signalisieren kann, ob abbrechbare Prozesse
vorhanden sind und der die SfxCancellable-Instanzen auf 'abgebrochen'
setzen kann.
Die im Ctor "ubergebene <SfxCancelManger>-Instanz mu\s die Instanz
dieser Klasse "uberleben!
[Beispiel]
{
SfxCancellable aCancel( pCancelMgr );
while ( !aCancel && GetData() )
Reschedule();
}
*/
{
SfxCancelManager* _pMgr;
BOOL _bCancelled;
String _aTitle;
public:
SfxCancellable( SfxCancelManager *pMgr,
const String &rTitle )
: _pMgr( pMgr ),
_bCancelled( FALSE ),
_aTitle( rTitle )
{ pMgr->InsertCancellable( this ); }
virtual ~SfxCancellable();
void SetManager( SfxCancelManager *pMgr );
SfxCancelManager* GetManager() const { return _pMgr; }
virtual void Cancel();
BOOL IsCancelled() const { return _bCancelled; }
operator BOOL() const { return _bCancelled; }
const String& GetTitle() const { return _aTitle; }
};
#endif
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