44522c38ec
Change-Id: I4d29ac20dc56b32d394beada19f7f1d8f99d22ae Reviewed-on: https://gerrit.libreoffice.org/c/core/+/170985 Reviewed-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org> Tested-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>
100 lines
2.7 KiB
C++
100 lines
2.7 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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#pragma once
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#include <sal/config.h>
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#include <vcl/dllapi.h>
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#include "salwtype.hxx"
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/*
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* note: there will be only a single instance of SalTimer
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* SalTimer originally had only static methods, but
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* this needed to be virtualized for the sal plugin migration
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*/
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class VCL_PLUGIN_PUBLIC SalTimer
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{
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SALTIMERPROC m_pProc;
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public:
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SalTimer() : m_pProc( nullptr ) {}
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virtual ~SalTimer() COVERITY_NOEXCEPT_FALSE;
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// AutoRepeat and Restart
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virtual void Start( sal_uInt64 nMS ) = 0;
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virtual void Stop() = 0;
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// Callbacks (indepen in \sv\source\app\timer.cxx)
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void SetCallback( SALTIMERPROC pProc )
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{
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m_pProc = pProc;
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}
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void CallCallback()
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{
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if( m_pProc )
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m_pProc();
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}
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};
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class VersionedEvent
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{
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/**
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* The "additional event data" members on macOS are integers, so we can't
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* use an unsigned integer and rely on the defined unsigned overflow in
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* InvalidateEvent().
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*/
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sal_Int32 m_nEventVersion;
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bool m_bIsValidVersion;
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public:
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VersionedEvent() : m_nEventVersion( 0 ), m_bIsValidVersion( false ) {}
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sal_Int32 GetNextEventVersion()
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{
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InvalidateEvent();
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m_bIsValidVersion = true;
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return m_nEventVersion;
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}
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void InvalidateEvent()
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{
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if ( m_bIsValidVersion )
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{
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if ( m_nEventVersion == SAL_MAX_INT32 )
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m_nEventVersion = 0;
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else
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++m_nEventVersion;
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m_bIsValidVersion = false;
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}
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}
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bool ExistsValidEvent() const
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{
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return m_bIsValidVersion;
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}
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bool IsValidEventVersion( const sal_Int32 nEventVersion ) const
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{
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return m_bIsValidVersion && nEventVersion == m_nEventVersion;
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}
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};
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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