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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef SC_REFRESHTIMER_HXX
#define SC_REFRESHTIMER_HXX
#include <vcl/timer.hxx>
#include <osl/mutex.hxx>
#include "scdllapi.h"
class ScRefreshTimerControl
{
private:
::osl::Mutex aMutex;
sal_uInt16 nBlockRefresh;
public:
ScRefreshTimerControl() : nBlockRefresh(0) {}
void SetAllowRefresh( sal_Bool b )
{
if ( b && nBlockRefresh )
--nBlockRefresh;
else if ( !b && nBlockRefresh < (sal_uInt16)(~0) )
++nBlockRefresh;
}
sal_Bool IsRefreshAllowed() const { return !nBlockRefresh; }
::osl::Mutex& GetMutex() { return aMutex; }
};
class ScRefreshTimerProtector
{
private:
ScRefreshTimerControl * const * ppControl;
public:
ScRefreshTimerProtector( ScRefreshTimerControl * const * pp );
~ScRefreshTimerProtector()
{
if ( ppControl && *ppControl )
(*ppControl)->SetAllowRefresh( true );
}
};
class ScRefreshTimer : public AutoTimer
{
private:
ScRefreshTimerControl * const * ppControl;
void AppendToControl() {}
void RemoveFromControl() {}
void Start()
{
if ( GetTimeout() )
AutoTimer::Start();
}
public:
ScRefreshTimer() : ppControl(0) { SetTimeout( 0 ); }
ScRefreshTimer( sal_uLong nSeconds ) : ppControl(0)
{
SetTimeout( nSeconds * 1000 );
Start();
}
ScRefreshTimer( const ScRefreshTimer& r ) : AutoTimer( r ), ppControl(0) {}
virtual ~ScRefreshTimer();
ScRefreshTimer& operator=( const ScRefreshTimer& r )
{
SetRefreshControl(0);
AutoTimer::operator=( r );
return *this;
}
sal_Bool operator==( const ScRefreshTimer& r ) const
{ return GetTimeout() == r.GetTimeout(); }
sal_Bool operator!=( const ScRefreshTimer& r ) const
{ return !ScRefreshTimer::operator==( r ); }
void StartRefreshTimer() { Start(); }
void SetRefreshControl( ScRefreshTimerControl * const * pp )
{
RemoveFromControl();
ppControl = pp;
AppendToControl();
}
void SetRefreshHandler( const Link& rLink ) { SetTimeoutHdl( rLink ); }
sal_uLong GetRefreshDelay() const { return GetTimeout() / 1000; }
void StopRefreshTimer() { Stop(); }
SC_DLLPUBLIC virtual void SetRefreshDelay( sal_uLong nSeconds );
SC_DLLPUBLIC virtual void Timeout();
};
#endif // SC_REFRESHTIMER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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