136 lines
3.6 KiB
C++
136 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef SC_REFRESHTIMER_HXX
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#define SC_REFRESHTIMER_HXX
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#include <vcl/timer.hxx>
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#include <osl/mutex.hxx>
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#include "scdllapi.h"
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class ScRefreshTimerControl
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{
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private:
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::osl::Mutex aMutex;
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sal_uInt16 nBlockRefresh;
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public:
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ScRefreshTimerControl() : nBlockRefresh(0) {}
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void SetAllowRefresh( sal_Bool b )
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{
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if ( b && nBlockRefresh )
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--nBlockRefresh;
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else if ( !b && nBlockRefresh < (sal_uInt16)(~0) )
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++nBlockRefresh;
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}
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sal_Bool IsRefreshAllowed() const { return !nBlockRefresh; }
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::osl::Mutex& GetMutex() { return aMutex; }
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};
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class ScRefreshTimerProtector
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{
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private:
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ScRefreshTimerControl * const * ppControl;
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public:
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ScRefreshTimerProtector( ScRefreshTimerControl * const * pp );
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~ScRefreshTimerProtector()
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{
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if ( ppControl && *ppControl )
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(*ppControl)->SetAllowRefresh( true );
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}
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};
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class ScRefreshTimer : public AutoTimer
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{
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private:
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ScRefreshTimerControl * const * ppControl;
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void AppendToControl() {}
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void RemoveFromControl() {}
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void Start()
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{
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if ( GetTimeout() )
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AutoTimer::Start();
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}
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public:
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ScRefreshTimer() : ppControl(0) { SetTimeout( 0 ); }
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ScRefreshTimer( sal_uLong nSeconds ) : ppControl(0)
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{
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SetTimeout( nSeconds * 1000 );
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Start();
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}
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ScRefreshTimer( const ScRefreshTimer& r ) : AutoTimer( r ), ppControl(0) {}
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virtual ~ScRefreshTimer();
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ScRefreshTimer& operator=( const ScRefreshTimer& r )
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{
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SetRefreshControl(0);
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AutoTimer::operator=( r );
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return *this;
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}
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sal_Bool operator==( const ScRefreshTimer& r ) const
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{ return GetTimeout() == r.GetTimeout(); }
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sal_Bool operator!=( const ScRefreshTimer& r ) const
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{ return !ScRefreshTimer::operator==( r ); }
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void StartRefreshTimer() { Start(); }
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void SetRefreshControl( ScRefreshTimerControl * const * pp )
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{
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RemoveFromControl();
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ppControl = pp;
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AppendToControl();
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}
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void SetRefreshHandler( const Link& rLink ) { SetTimeoutHdl( rLink ); }
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sal_uLong GetRefreshDelay() const { return GetTimeout() / 1000; }
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void StopRefreshTimer() { Stop(); }
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SC_DLLPUBLIC virtual void SetRefreshDelay( sal_uLong nSeconds );
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SC_DLLPUBLIC virtual void Timeout();
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};
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#endif // SC_REFRESHTIMER_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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