/* -*- 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 "DragMethod_PieSegment.hxx"

#include <DrawViewWrapper.hxx>

#include <ChartModel.hxx>

#include <strings.hrc>

#include <ResId.hxx>

#include <ObjectIdentifier.hxx>

#include <com/sun/star/beans/XPropertySet.hpp>

#include <com/sun/star/awt/Point.hpp>

#include <basegfx/matrix/b2dhommatrix.hxx>

#include <comphelper/diagnose_ex.hxx>

namespace chart

{

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

using ::com::sun::star::uno::Reference;

using ::basegfx::B2DVector;

DragMethod_PieSegment::DragMethod_PieSegment( DrawViewWrapper& rDrawViewWrapper

                                             , const OUString& rObjectCID

                                             , const rtl::Reference<::chart::ChartModel>& xChartModel )

    : DragMethod_Base( rDrawViewWrapper, rObjectCID, xChartModel )

    , m_aStartVector(100.0,100.0)

    , m_fInitialOffset(0.0)

    , m_fAdditionalOffset(0.0)

    , m_aDragDirection(1000.0,1000.0)

    , m_fDragRange( 1.0 )

{

    std::u16string_view aParameter( ObjectIdentifier::getDragParameterString( m_aObjectCID ) );

    sal_Int32 nOffsetPercent(0);

    awt::Point aMinimumPosition(0,0);

    awt::Point aMaximumPosition(0,0);

    ObjectIdentifier::parsePieSegmentDragParameterString(

          aParameter, nOffsetPercent, aMinimumPosition, aMaximumPosition );

    m_fInitialOffset = nOffsetPercent / 100.0;

    if( m_fInitialOffset < 0.0 )

        m_fInitialOffset = 0.0;

    if( m_fInitialOffset > 1.0 )

        m_fInitialOffset = 1.0;

    B2DVector aMinVector( aMinimumPosition.X, aMinimumPosition.Y );

    B2DVector aMaxVector( aMaximumPosition.X, aMaximumPosition.Y );

    m_aDragDirection = aMaxVector - aMinVector;

    m_fDragRange = m_aDragDirection.scalar( m_aDragDirection );

    if( m_fDragRange == 0.0 )

        m_fDragRange = 1.0;

}

DragMethod_PieSegment::~DragMethod_PieSegment()

{

}

OUString DragMethod_PieSegment::GetSdrDragComment() const

{

    OUString aStr = SchResId(STR_STATUS_PIE_SEGMENT_EXPLODED);

    aStr = aStr.replaceFirst( "%PERCENTVALUE", OUString::number( static_cast<sal_Int32>((m_fAdditionalOffset+m_fInitialOffset)*100.0) ));

    return aStr;

}

bool DragMethod_PieSegment::BeginSdrDrag()

{

    Point aStart( DragStat().GetStart() );

    m_aStartVector = B2DVector( aStart.X(), aStart.Y() );

    Show();

    return true;

}

void DragMethod_PieSegment::MoveSdrDrag(const Point& rPnt)

{

    if( !DragStat().CheckMinMoved(rPnt) )

        return;

    //calculate new offset

    B2DVector aShiftVector( B2DVector( rPnt.X(), rPnt.Y() ) - m_aStartVector );

    m_fAdditionalOffset = m_aDragDirection.scalar( aShiftVector )/m_fDragRange; // projection

    if( m_fAdditionalOffset < -m_fInitialOffset )

        m_fAdditionalOffset = -m_fInitialOffset;

    else if( m_fAdditionalOffset > (1.0-m_fInitialOffset) )

        m_fAdditionalOffset = 1.0 - m_fInitialOffset;

    B2DVector aNewPosVector = m_aStartVector + (m_aDragDirection * m_fAdditionalOffset);

    Point aNewPos( static_cast<tools::Long>(aNewPosVector.getX()), static_cast<tools::Long>(aNewPosVector.getY()) );

    if( aNewPos != DragStat().GetNow() )

    {

        Hide();

        DragStat().NextMove( aNewPos );

        Show();

    }

}

bool DragMethod_PieSegment::EndSdrDrag(bool /*bCopy*/)

{

    Hide();

    try

    {

        rtl::Reference<::chart::ChartModel> xChartModel( getChartModel() );

        if( xChartModel.is() )

        {

            Reference< beans::XPropertySet > xPointProperties(

                ObjectIdentifier::getObjectPropertySet( m_aObjectCID, xChartModel ) );

            if( xPointProperties.is() )

                xPointProperties->setPropertyValue( u"Offset"_ustr, uno::Any( m_fAdditionalOffset+m_fInitialOffset ));

        }

    }

    catch( const uno::Exception & )

    {

        DBG_UNHANDLED_EXCEPTION("chart2");

    }

    return true;

}

basegfx::B2DHomMatrix DragMethod_PieSegment::getCurrentTransformation() const

{

    basegfx::B2DHomMatrix aRetval;

    aRetval.translate(DragStat().GetDX(), DragStat().GetDY());

    return aRetval;

}

void DragMethod_PieSegment::createSdrDragEntries()

{

    SdrObject* pObj = m_rDrawViewWrapper.getSelectedObject();

    SdrPageView* pPV = m_rDrawViewWrapper.GetPageView();

    if( pObj && pPV )

    {

        basegfx::B2DPolyPolygon aNewPolyPolygon(pObj->TakeXorPoly());

        addSdrDragEntry(std::unique_ptr<SdrDragEntry>(new SdrDragEntryPolyPolygon(std::move(aNewPolyPolygon))));

    }

}

} //namespace chart

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