138 lines
3.5 KiB
C++
138 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "refreshtimer.hxx"
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#include "refreshtimerprotector.hxx"
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void ScRefreshTimerControl::SetAllowRefresh( 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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ScRefreshTimerProtector::ScRefreshTimerProtector( ScRefreshTimerControl * const & rp )
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:
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m_rpControl( rp )
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{
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if ( m_rpControl )
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{
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m_rpControl->SetAllowRefresh( false );
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// wait for any running refresh in another thread to finnish
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::osl::MutexGuard aGuard( m_rpControl->GetMutex() );
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}
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}
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ScRefreshTimerProtector::~ScRefreshTimerProtector()
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{
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if ( m_rpControl )
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m_rpControl->SetAllowRefresh( true );
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}
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ScRefreshTimer::ScRefreshTimer() : ppControl(nullptr)
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{
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SetTimeout( 0 );
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}
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ScRefreshTimer::ScRefreshTimer( sal_uLong nSeconds ) : ppControl(nullptr)
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{
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SetTimeout( nSeconds * 1000 );
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Launch();
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}
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ScRefreshTimer::ScRefreshTimer( const ScRefreshTimer& r ) : AutoTimer( r ), ppControl(nullptr)
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{
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}
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ScRefreshTimer::~ScRefreshTimer()
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{
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if ( IsActive() )
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Stop();
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}
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ScRefreshTimer& ScRefreshTimer::operator=( const ScRefreshTimer& r )
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{
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SetRefreshControl(nullptr);
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AutoTimer::operator=( r );
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return *this;
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}
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bool ScRefreshTimer::operator==( const ScRefreshTimer& r ) const
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{
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return GetTimeout() == r.GetTimeout();
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}
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bool ScRefreshTimer::operator!=( const ScRefreshTimer& r ) const
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{
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return !ScRefreshTimer::operator==( r );
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}
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void ScRefreshTimer::SetRefreshControl( ScRefreshTimerControl * const * pp )
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{
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ppControl = pp;
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}
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void ScRefreshTimer::SetRefreshHandler( const Link<Timer *, void>& rLink )
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{
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SetTimeoutHdl( rLink );
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}
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sal_uLong ScRefreshTimer::GetRefreshDelay() const
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{
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return GetTimeout() / 1000;
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}
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void ScRefreshTimer::StopRefreshTimer()
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{
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Stop();
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}
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void ScRefreshTimer::SetRefreshDelay( sal_uLong nSeconds )
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{
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bool bActive = IsActive();
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if ( bActive && !nSeconds )
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Stop();
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SetTimeout( nSeconds * 1000 );
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if ( !bActive && nSeconds )
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Launch();
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}
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void ScRefreshTimer::Invoke()
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{
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if ( ppControl && *ppControl && (*ppControl)->IsRefreshAllowed() )
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{
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// now we COULD make the call in another thread ...
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::osl::MutexGuard aGuard( (*ppControl)->GetMutex() );
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maTimeoutHdl.Call( this );
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// restart from now on, don't execute immediately again if timed out
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// a second time during refresh
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if ( IsActive() )
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Launch();
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}
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}
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void ScRefreshTimer::Launch()
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{
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if ( GetTimeout() )
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AutoTimer::Start();
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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