/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
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 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sw.hxx"

// include ---------------------------------------------------------------


#include "prcntfld.hxx"

// STATIC DATA -----------------------------------------------------------

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

PercentField::PercentField( Window* pWin, const ResId& rResId ) :
		MetricField	( pWin, rResId ),

        nOldMax     (0),
		nOldMin		(0),
        nLastPercent(-1),
        nLastValue  (-1),
        eOldUnit    (FUNIT_NONE),
        bLockAutoCalculation(sal_False)
{

	nOldSpinSize = GetSpinSize();
	nRefValue = DenormalizePercent(MetricField::GetMax(FUNIT_TWIP));
	nOldDigits = GetDecimalDigits();
	SetCustomUnitText('%');
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

void PercentField::SetRefValue(sal_Int64 nValue)
{
    sal_Int64 nRealValue = GetRealValue(eOldUnit);

	nRefValue = nValue;

    if (!bLockAutoCalculation && (GetUnit() == FUNIT_CUSTOM))
        SetPrcntValue(nRealValue, eOldUnit);
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

void PercentField::ShowPercent(sal_Bool bPercent)
{
	if ((bPercent && GetUnit() == FUNIT_CUSTOM) ||
		(!bPercent && GetUnit() != FUNIT_CUSTOM))
		return;

    sal_Int64 nOldValue;

	if (bPercent)
	{
        sal_Int64 nAktWidth, nPercent;

		nOldValue = GetValue();

		eOldUnit = GetUnit();
		nOldDigits = GetDecimalDigits();
		nOldMin = GetMin();
		nOldMax = GetMax();
		nOldSpinSize = GetSpinSize();
		nOldBaseValue = GetBaseValue();
		SetUnit(FUNIT_CUSTOM);
		SetDecimalDigits( 0 );

		nAktWidth = ConvertValue(nOldMin, 0, nOldDigits, eOldUnit, FUNIT_TWIP);
		// Um 0.5 Prozent aufrunden
		nPercent = ((nAktWidth * 10) / nRefValue + 5) / 10;

        MetricField::SetMin(Max(static_cast< sal_Int64 >(1), nPercent));
		MetricField::SetMax(100);
		SetSpinSize(5);
		MetricField::SetBaseValue(0);
		if (nOldValue != nLastValue)
		{
			nAktWidth = ConvertValue(nOldValue, 0, nOldDigits, eOldUnit, FUNIT_TWIP);
			nPercent = ((nAktWidth * 10) / nRefValue + 5) / 10;
            MetricFormatter::SetValue(nPercent);
			nLastPercent = nPercent;
			nLastValue = nOldValue;
		}
		else
            MetricFormatter::SetValue(nLastPercent);
//		SetValue(100, FUNIT_CUSTOM);
	}
	else
	{
        sal_Int64 nOldPercent = GetValue(FUNIT_CUSTOM);

		nOldValue = Convert(GetValue(), GetUnit(), eOldUnit);

		SetUnit(eOldUnit);
		SetDecimalDigits(nOldDigits);
		MetricField::SetMin(nOldMin);
		MetricField::SetMax(nOldMax);
		SetSpinSize(nOldSpinSize);
		MetricField::SetBaseValue(nOldBaseValue);

		if (nOldPercent != nLastPercent)
		{
            SetPrcntValue(nOldValue, eOldUnit);
			nLastPercent = nOldPercent;
			nLastValue = nOldValue;
		}
		else
            SetPrcntValue(nLastValue, eOldUnit);
	}
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/
void PercentField::SetValue(sal_Int64 nNewValue, FieldUnit eInUnit)
{
   MetricFormatter::SetValue(nNewValue, eInUnit);
}
/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/
void PercentField::SetPrcntValue(sal_Int64 nNewValue, FieldUnit eInUnit)
{
	if (GetUnit() != FUNIT_CUSTOM || eInUnit == FUNIT_CUSTOM)
        MetricFormatter::SetValue(Convert(nNewValue, eInUnit, GetUnit()));

	else
	{
		// Ausgangswert ueberschreiben, nicht spaeter restaurieren
        sal_Int64 nPercent, nAktWidth;
		if(eInUnit == FUNIT_TWIP)
		{
			nAktWidth = ConvertValue(nNewValue, 0, nOldDigits, FUNIT_TWIP, FUNIT_TWIP);
		}
		else
		{
            sal_Int64 nValue = Convert(nNewValue, eInUnit, eOldUnit);
			nAktWidth = ConvertValue(nValue, 0, nOldDigits, eOldUnit, FUNIT_TWIP);
		}
		nPercent = ((nAktWidth * 10) / nRefValue + 5) / 10;
        MetricFormatter::SetValue(nPercent);
	}
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

void PercentField::SetUserValue( sal_Int64 nNewValue, FieldUnit eInUnit )
{
	if (GetUnit() != FUNIT_CUSTOM || eInUnit == FUNIT_CUSTOM)
		MetricField::SetUserValue(Convert(nNewValue, eInUnit, GetUnit()),FUNIT_NONE);

	else
	{
		// Ausgangswert ueberschreiben, nicht spaeter restaurieren
        sal_Int64 nPercent, nAktWidth;
		if(eInUnit == FUNIT_TWIP)
		{
			nAktWidth = ConvertValue(nNewValue, 0, nOldDigits, FUNIT_TWIP, FUNIT_TWIP);
		}
		else
		{
            sal_Int64 nValue = Convert(nNewValue, eInUnit, eOldUnit);
			nAktWidth = ConvertValue(nValue, 0, nOldDigits, eOldUnit, FUNIT_TWIP);
		}
		nPercent = ((nAktWidth * 10) / nRefValue + 5) / 10;
		MetricField::SetUserValue(nPercent,FUNIT_NONE);
	}

}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

void PercentField::SetBaseValue(sal_Int64 nNewValue, FieldUnit eInUnit)
{
	if (GetUnit() == FUNIT_CUSTOM)
		nOldBaseValue = ConvertValue(nNewValue, 0, nOldDigits, eInUnit, eOldUnit);
	else
		MetricField::SetBaseValue(nNewValue, eInUnit);
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

sal_Int64 PercentField::GetValue( FieldUnit eOutUnit )
{
	return Convert(MetricField::GetValue(), GetUnit(), eOutUnit);
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

void PercentField::SetMin(sal_Int64 nNewMin, FieldUnit eInUnit)
{
	if (GetUnit() != FUNIT_CUSTOM)
		MetricField::SetMin(nNewMin, eInUnit);
	else
	{
		if (eInUnit == FUNIT_NONE)
			eInUnit = eOldUnit;
		nOldMin = Convert(nNewMin, eInUnit, eOldUnit);

        sal_Int64 nPercent = Convert(nNewMin, eInUnit, FUNIT_CUSTOM);
        MetricField::SetMin(Max( static_cast< sal_Int64 >(1), nPercent));
	}
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

void PercentField::SetMax(sal_Int64 nNewMax, FieldUnit eInUnit)
{
	if (GetUnit() != FUNIT_CUSTOM)
		MetricField::SetMax(nNewMax, eInUnit);
	else
	{
		if (eInUnit == FUNIT_NONE)
			eInUnit = eOldUnit;
//		SetRefValue(Convert(nNewMax, eInUnit, FUNIT_TWIP));
	}
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

sal_Int64 PercentField::NormalizePercent(sal_Int64 nValue)
{
	if (GetUnit() != FUNIT_CUSTOM)
		nValue = MetricField::Normalize(nValue);
	else
		nValue = nValue * ImpPower10(nOldDigits);

	return nValue;
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

sal_Int64 PercentField::DenormalizePercent(sal_Int64 nValue)
{
	if (GetUnit() != FUNIT_CUSTOM)
		nValue = MetricField::Denormalize(nValue);
	else
	{
        sal_Int64 nFactor = ImpPower10(nOldDigits);
		nValue = ((nValue+(nFactor/2)) / nFactor);
	}

	return nValue;
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

sal_Bool PercentField::IsValueModified()
{
	if (GetUnit() == FUNIT_CUSTOM)
		return sal_True;
	else
		return MetricField::IsValueModified();
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

sal_Int64 PercentField::ImpPower10( sal_uInt16 n )
{
	sal_uInt16 i;
    sal_Int64   nValue = 1;

	for ( i=0; i < n; i++ )
		nValue *= 10;

	return nValue;
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

sal_Int64 PercentField::GetRealValue(FieldUnit eOutUnit)
{
	if (GetUnit() != FUNIT_CUSTOM)
		return GetValue(eOutUnit);
	else
		return Convert(GetValue(), GetUnit(), eOutUnit);
}

/*--------------------------------------------------------------------
	Beschreibung:
 --------------------------------------------------------------------*/

sal_Int64 PercentField::Convert(sal_Int64 nValue, FieldUnit eInUnit, FieldUnit eOutUnit)
{
	if (eInUnit == eOutUnit ||
		(eInUnit == FUNIT_NONE && eOutUnit == GetUnit()) ||
		(eOutUnit == FUNIT_NONE && eInUnit == GetUnit()))
		return nValue;

	if (eInUnit == FUNIT_CUSTOM)
	{
		// Umrechnen in Metrik
        sal_Int64 nTwipValue = (nRefValue * nValue + 50) / 100;

		if (eOutUnit == FUNIT_TWIP)	// Nur wandeln, wenn unbedingt notwendig
			return NormalizePercent(nTwipValue);
		else
			return ConvertValue(NormalizePercent(nTwipValue), 0, nOldDigits, FUNIT_TWIP, eOutUnit);
	}

	if (eOutUnit == FUNIT_CUSTOM)
	{
		// Umrechnen in Prozent
        sal_Int64 nAktWidth;
		nValue = DenormalizePercent(nValue);

		if (eInUnit == FUNIT_TWIP)	// Nur wandeln, wenn unbedingt notwendig
			nAktWidth = nValue;
		else
			nAktWidth = ConvertValue(nValue, 0, nOldDigits, eInUnit, FUNIT_TWIP);
		// Um 0.5 Prozent runden
		return ((nAktWidth * 1000) / nRefValue + 5) / 10;
	}

	return ConvertValue(nValue, 0, nOldDigits, eInUnit, eOutUnit);
}