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/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
#ifndef SC_REFRESHTIMER_HXX
#define SC_REFRESHTIMER_HXX
#include <tools/list.hxx>
#include <vcl/timer.hxx>
#include <vos/mutex.hxx>
#include <scdllapi.h>
#define SC_REFRESHTIMER_CONTROL_LIST 0
#if SC_REFRESHTIMER_CONTROL_LIST
class ScRefreshTimer;
DECLARE_LIST( ScRefreshTimerList, ScRefreshTimer* )
#endif
class ScRefreshTimerControl
{
private:
::vos::OMutex aMutex;
sal_uInt16 nBlockRefresh;
public:
#if SC_REFRESHTIMER_CONTROL_LIST
ScRefreshTimerList aList;
#endif
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; }
::vos::OMutex& GetMutex() { return aMutex; }
};
class ScRefreshTimerProtector
{
private:
ScRefreshTimerControl * const * ppControl;
public:
ScRefreshTimerProtector( ScRefreshTimerControl * const * pp );
~ScRefreshTimerProtector()
{
if ( ppControl && *ppControl )
(*ppControl)->SetAllowRefresh( sal_True );
}
};
class ScRefreshTimer : public AutoTimer
{
private:
ScRefreshTimerControl * const * ppControl;
void AppendToControl()
{
#if SC_REFRESHTIMER_CONTROL_LIST
if ( ppControl && *ppControl )
(*ppControl)->aList.Insert( this, LIST_APPEND );
#endif
}
void RemoveFromControl()
{
#if SC_REFRESHTIMER_CONTROL_LIST
if ( ppControl && *ppControl )
(*ppControl)->aList.Remove( this );
#endif
}
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
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