/* -*- 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 "MinimumAndMaximumSupplier.hxx"

#include <com/sun/star/chart/TimeUnit.hpp>

#include <rtl/math.hxx>
#include <com/sun/star/awt/Size.hpp>

namespace chart
{
using namespace ::com::sun::star;

MergedMinimumAndMaximumSupplier::MergedMinimumAndMaximumSupplier()
{
}

MergedMinimumAndMaximumSupplier::~MergedMinimumAndMaximumSupplier()
{
}

void MergedMinimumAndMaximumSupplier::addMinimumAndMaximumSupplier( MinimumAndMaximumSupplier* pMinimumAndMaximumSupplier )
{
    m_aMinimumAndMaximumSupplierList.insert( pMinimumAndMaximumSupplier );
}

bool MergedMinimumAndMaximumSupplier::hasMinimumAndMaximumSupplier( MinimumAndMaximumSupplier* pMinimumAndMaximumSupplier )
{
    return m_aMinimumAndMaximumSupplierList.count( pMinimumAndMaximumSupplier ) != 0;
}

double MergedMinimumAndMaximumSupplier::getMinimumX()
{
    double fGlobalExtremum;
    ::rtl::math::setInf(&fGlobalExtremum, false);
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
    {
        double fLocalExtremum = (*aIt)->getMinimumX();
        if(fLocalExtremum<fGlobalExtremum)
            fGlobalExtremum=fLocalExtremum;
    }
    if(::rtl::math::isInf(fGlobalExtremum))
        ::rtl::math::setNan(&fGlobalExtremum);
    return fGlobalExtremum;
}

double MergedMinimumAndMaximumSupplier::getMaximumX()
{
    double fGlobalExtremum;
    ::rtl::math::setInf(&fGlobalExtremum, true);
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
    {
        double fLocalExtremum = (*aIt)->getMaximumX();
        if(fLocalExtremum>fGlobalExtremum)
            fGlobalExtremum=fLocalExtremum;
    }
    if(::rtl::math::isInf(fGlobalExtremum))
        ::rtl::math::setNan(&fGlobalExtremum);
    return fGlobalExtremum;
}

double MergedMinimumAndMaximumSupplier::getMinimumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex )
{
    double fGlobalExtremum;
    ::rtl::math::setInf(&fGlobalExtremum, false);
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
    {
        double fLocalExtremum = (*aIt)->getMinimumYInRange( fMinimumX, fMaximumX, nAxisIndex );
        if(fLocalExtremum<fGlobalExtremum)
            fGlobalExtremum=fLocalExtremum;
    }
    if(::rtl::math::isInf(fGlobalExtremum))
        ::rtl::math::setNan(&fGlobalExtremum);
    return fGlobalExtremum;
}

double MergedMinimumAndMaximumSupplier::getMaximumYInRange( double fMinimumX, double fMaximumX, sal_Int32 nAxisIndex )
{
    double fGlobalExtremum;
    ::rtl::math::setInf(&fGlobalExtremum, true);
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
    {
        double fLocalExtremum = (*aIt)->getMaximumYInRange( fMinimumX, fMaximumX, nAxisIndex );
        if(fLocalExtremum>fGlobalExtremum)
            fGlobalExtremum=fLocalExtremum;
    }
    if(::rtl::math::isInf(fGlobalExtremum))
        ::rtl::math::setNan(&fGlobalExtremum);
    return fGlobalExtremum;
}

double MergedMinimumAndMaximumSupplier::getMinimumZ()
{
    double fGlobalExtremum;
    ::rtl::math::setInf(&fGlobalExtremum, false);
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
    {
        double fLocalExtremum = (*aIt)->getMinimumZ();
        if(fLocalExtremum<fGlobalExtremum)
            fGlobalExtremum=fLocalExtremum;
    }
    if(::rtl::math::isInf(fGlobalExtremum))
        ::rtl::math::setNan(&fGlobalExtremum);
    return fGlobalExtremum;
}

double MergedMinimumAndMaximumSupplier::getMaximumZ()
{
    double fGlobalExtremum;
    ::rtl::math::setInf(&fGlobalExtremum, true);
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
    {
        double fLocalExtremum = (*aIt)->getMaximumZ();
        if(fLocalExtremum>fGlobalExtremum)
            fGlobalExtremum=fLocalExtremum;
    }
    if(::rtl::math::isInf(fGlobalExtremum))
        ::rtl::math::setNan(&fGlobalExtremum);
    return fGlobalExtremum;
}

bool MergedMinimumAndMaximumSupplier::isExpandBorderToIncrementRhythm( sal_Int32 nDimensionIndex )
{
    // only return true, if *all* suppliers want to scale to the main tick marks
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
        if( !(*aIt)->isExpandBorderToIncrementRhythm( nDimensionIndex ) )
            return false;
    return true;
}

bool MergedMinimumAndMaximumSupplier::isExpandIfValuesCloseToBorder( sal_Int32 nDimensionIndex )
{
    // only return true, if *all* suppliers want to expand the range
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
        if( !(*aIt)->isExpandIfValuesCloseToBorder( nDimensionIndex ) )
            return false;
    return true;
}

bool MergedMinimumAndMaximumSupplier::isExpandWideValuesToZero( sal_Int32 nDimensionIndex )
{
    // already return true, if at least one supplier wants to expand the range
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
        if( (*aIt)->isExpandWideValuesToZero( nDimensionIndex ) )
            return true;
    return false;
}

bool MergedMinimumAndMaximumSupplier::isExpandNarrowValuesTowardZero( sal_Int32 nDimensionIndex )
{
    // already return true, if at least one supplier wants to expand the range
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
        if( (*aIt)->isExpandNarrowValuesTowardZero( nDimensionIndex ) )
            return true;
    return false;
}

bool MergedMinimumAndMaximumSupplier::isSeparateStackingForDifferentSigns( sal_Int32 nDimensionIndex )
{
    // should not be called
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
        if( (*aIt)->isSeparateStackingForDifferentSigns( nDimensionIndex ) )
            return true;
    return false;
}

void MergedMinimumAndMaximumSupplier::clearMinimumAndMaximumSupplierList()
{
    m_aMinimumAndMaximumSupplierList.clear();
}

long MergedMinimumAndMaximumSupplier::calculateTimeResolutionOnXAxis()
{
    long nRet = ::com::sun::star::chart::TimeUnit::YEAR;
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
    {
        long nCurrent = (*aIt)->calculateTimeResolutionOnXAxis();
        if(nRet>nCurrent)
            nRet=nCurrent;
    }
    return nRet;
}

void MergedMinimumAndMaximumSupplier::setTimeResolutionOnXAxis( long nTimeResolution, const Date& rNullDate )
{
    for( MinimumAndMaximumSupplierSet::iterator aIt = begin(), aEnd = end(); aIt != aEnd; ++aIt )
        (*aIt)->setTimeResolutionOnXAxis( nTimeResolution, rNullDate );
}

} //namespace chart

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