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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 DBACCESS_PROGRESSMIXER_HXX
#define DBACCESS_PROGRESSMIXER_HXX
#include <sal/types.h>
#include <memory>
namespace dbmm
{
typedef sal_uInt32 PhaseID;
typedef sal_uInt32 PhaseWeight;
// IProgressConsumer
class SAL_NO_VTABLE IProgressConsumer
{
public:
virtual void start( sal_uInt32 _nRange ) = 0;
virtual void advance( sal_uInt32 _nValue ) = 0;
virtual void end() = 0;
protected:
~IProgressConsumer() {}
};
// ProgressMixer
struct ProgressMixer_Data;
/** a class which mixes (i.e. concatenates) progress values from different
sources/phases, with different weight
*/
class ProgressMixer
{
public:
ProgressMixer( IProgressConsumer& _rConsumer );
~ProgressMixer();
/** registers a phase of the process, which has the given weight
in the overall process
@precond
the progress is not runnig, yet
*/
void registerPhase( const PhaseID _nID, const PhaseWeight _nWeight );
/** enters the phase with the given ID, with the phase having
the given overall range
*/
void startPhase( const PhaseID _nID, const sal_uInt32 _nPhaseRange );
/** announces a new progress in the current phase.
The given phase progress must be between 0 and the overall phase range
as specified in ->startPhase.
*/
void advancePhase( const sal_uInt32 _nPhaseProgress );
/** leaves the current phase, which has been started with ->startPhase previously
*/
void endPhase();
private:
::std::auto_ptr< ProgressMixer_Data > m_pData;
};
} // namespace dbmm
#endif // DBACCESS_PROGRESSMIXER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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