/* -*- 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 .

 */

#include <oox/helper/progressbar.hxx>

#include <com/sun/star/task/XStatusIndicator.hpp>

#include <oox/helper/helper.hxx>

#include <sal/log.hxx>

namespace oox {

using namespace ::com::sun::star::task;

using namespace ::com::sun::star::uno;

namespace {

const sal_Int32 PROGRESS_RANGE      = 1000000;

} // namespace

IProgressBar::~IProgressBar()

{

}

ISegmentProgressBar::~ISegmentProgressBar()

{

}

ProgressBar::ProgressBar( const Reference< XStatusIndicator >& rxIndicator, const OUString& rText ) :

    mxIndicator( rxIndicator ),

    mfPosition( 0 )

{

    if( mxIndicator.is() )

        mxIndicator->start( rText, PROGRESS_RANGE );

}

ProgressBar::~ProgressBar()

{

    if( mxIndicator.is() )

        mxIndicator->end();

}

double ProgressBar::getPosition() const

{

    return mfPosition;

}

void ProgressBar::setPosition( double fPosition )

{

    SAL_WARN_IF( (mfPosition > fPosition) || (fPosition > 1.0), "oox", "ProgressBar::setPosition - invalid position" );

    mfPosition = getLimitedValue< double >( fPosition, mfPosition, 1.0 );

    if( mxIndicator.is() )

        mxIndicator->setValue( static_cast< sal_Int32 >( mfPosition * PROGRESS_RANGE ) );

}

namespace prv {

namespace {

class SubSegment : public ISegmentProgressBar

{

public:

    explicit            SubSegment( IProgressBar& rParentProgress, double fStartPos, double fLength );

    virtual double      getPosition() const override;

    virtual void        setPosition( double fPosition ) override;

    virtual double      getFreeLength() const override;

    virtual ISegmentProgressBarRef createSegment( double fLength ) override;

private:

    IProgressBar&       mrParentProgress;

    double              mfStartPos;

    double              mfLength;

    double              mfPosition;

    double              mfFreeStart;

};

}

SubSegment::SubSegment( IProgressBar& rParentProgress, double fStartPos, double fLength ) :

    mrParentProgress( rParentProgress ),

    mfStartPos( fStartPos ),

    mfLength( fLength ),

    mfPosition( 0.0 ),

    mfFreeStart( 0.0 )

{

}

double SubSegment::getPosition() const

{

    return mfPosition;

}

void SubSegment::setPosition( double fPosition )

{

    SAL_WARN_IF( (mfPosition > fPosition) || (fPosition > 1.0), "oox", "SubSegment::setPosition - invalid position" );

    mfPosition = getLimitedValue< double >( fPosition, mfPosition, 1.0 );

    mrParentProgress.setPosition( mfStartPos + mfPosition * mfLength );

}

double SubSegment::getFreeLength() const

{

    return 1.0 - mfFreeStart;

}

ISegmentProgressBarRef SubSegment::createSegment( double fLength )

{

    SAL_WARN_IF( (0.0 >= fLength) || (fLength > getFreeLength()), "oox", "SubSegment::createSegment - invalid length" );

    fLength = getLimitedValue< double >( fLength, 0.0, getFreeLength() );

    ISegmentProgressBarRef xSegment = std::make_shared<prv::SubSegment>( *this, mfFreeStart, fLength );

    mfFreeStart += fLength;

    return xSegment;

}

} // namespace oox::prv

SegmentProgressBar::SegmentProgressBar( const Reference< XStatusIndicator >& rxIndicator, const OUString& rText ) :

    maProgress( rxIndicator, rText ),

    mfFreeStart( 0.0 )

{

}

double SegmentProgressBar::getPosition() const

{

    return maProgress.getPosition();

}

void SegmentProgressBar::setPosition( double fPosition )

{

    maProgress.setPosition( fPosition );

}

double SegmentProgressBar::getFreeLength() const

{

    return 1.0 - mfFreeStart;

}

ISegmentProgressBarRef SegmentProgressBar::createSegment( double fLength )

{

    SAL_WARN_IF( (0.0 >= fLength) || (fLength > getFreeLength()), "oox", "SegmentProgressBar::createSegment - invalid length" );

    fLength = getLimitedValue< double >( fLength, 0.0, getFreeLength() );

    ISegmentProgressBarRef xSegment = std::make_shared<prv::SubSegment>( maProgress, mfFreeStart, fLength );

    mfFreeStart += fLength;

    return xSegment;

}

} // namespace oox

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