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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 .
*/
#include <prcntfld.hxx>
#include <vcl/fieldvalues.hxx>
SwPercentField::SwPercentField(std::unique_ptr<weld::MetricSpinButton> pControl)
: m_pField(std::move(pControl))
, nOldMax(0)
, nOldMin(0)
, nLastPercent(-1)
, nLastValue(-1)
, nOldDigits(m_pField->get_digits())
, eOldUnit(FieldUnit::NONE)
, bLockAutoCalculation(false)
{
int nMin, nMax;
m_pField->get_range(nMin, nMax, FieldUnit::TWIP);
nRefValue = DenormalizePercent(nMax);
m_pField->get_increments(nOldSpinSize, nOldPageSize, FieldUnit::NONE);
}
void SwPercentField::SetRefValue(int nValue)
{
int nRealValue = GetRealValue(eOldUnit);
nRefValue = nValue;
if (!bLockAutoCalculation && (m_pField->get_unit() == FieldUnit::PERCENT))
set_value(nRealValue, eOldUnit);
}
void SwPercentField::ShowPercent(bool bPercent)
{
if ((bPercent && m_pField->get_unit() == FieldUnit::PERCENT) ||
(!bPercent && m_pField->get_unit() != FieldUnit::PERCENT))
return;
int nOldValue;
if (bPercent)
{
nOldValue = get_value();
eOldUnit = m_pField->get_unit();
nOldDigits = m_pField->get_digits();
m_pField->get_range(nOldMin, nOldMax, FieldUnit::NONE);
m_pField->get_increments(nOldSpinSize, nOldPageSize, FieldUnit::NONE);
m_pField->set_unit(FieldUnit::PERCENT);
m_pField->set_digits(0);
int nCurrentWidth = vcl::ConvertValue(nOldMin, 0, nOldDigits, eOldUnit, FieldUnit::TWIP);
// round to 0.5 percent
int nPercent = nRefValue ? (((nCurrentWidth * 10) / nRefValue + 5) / 10) : 0;
m_pField->set_range(std::max(1, nPercent), 100, FieldUnit::NONE);
m_pField->set_increments(5, 10, FieldUnit::NONE);
if (nOldValue != nLastValue)
{
nCurrentWidth = vcl::ConvertValue(nOldValue, 0, nOldDigits, eOldUnit, FieldUnit::TWIP);
nPercent = nRefValue ? (((nCurrentWidth * 10) / nRefValue + 5) / 10) : 0;
m_pField->set_value(nPercent, FieldUnit::NONE);
nLastPercent = nPercent;
nLastValue = nOldValue;
}
else
m_pField->set_value(nLastPercent, FieldUnit::NONE);
}
else
{
int nOldPercent = get_value(FieldUnit::PERCENT);
nOldValue = Convert(get_value(), m_pField->get_unit(), eOldUnit);
m_pField->set_unit(eOldUnit);
m_pField->set_digits(nOldDigits);
m_pField->set_range(nOldMin, nOldMax, FieldUnit::NONE);
m_pField->set_increments(nOldSpinSize, nOldPageSize, FieldUnit::NONE);
if (nOldPercent != nLastPercent)
{
set_value(nOldValue, eOldUnit);
nLastPercent = nOldPercent;
nLastValue = nOldValue;
}
else
set_value(nLastValue, eOldUnit);
}
}
void SwPercentField::set_value(int nNewValue, FieldUnit eInUnit)
{
if (m_pField->get_unit() != FieldUnit::PERCENT || eInUnit == FieldUnit::PERCENT)
m_pField->set_value(Convert(nNewValue, eInUnit, m_pField->get_unit()), FieldUnit::NONE);
else
{
// Overwrite output value, do not restore later
int nPercent, nCurrentWidth;
if(eInUnit == FieldUnit::TWIP)
{
nCurrentWidth = vcl::ConvertValue(nNewValue, 0, nOldDigits, FieldUnit::TWIP, FieldUnit::TWIP);
}
else
{
int nValue = Convert(nNewValue, eInUnit, eOldUnit);
nCurrentWidth = vcl::ConvertValue(nValue, 0, nOldDigits, eOldUnit, FieldUnit::TWIP);
}
nPercent = nRefValue ? (((nCurrentWidth * 10) / nRefValue + 5) / 10) : 0;
m_pField->set_value(nPercent, FieldUnit::NONE);
}
}
int SwPercentField::get_value(FieldUnit eOutUnit)
{
return Convert(m_pField->get_value(FieldUnit::NONE), m_pField->get_unit(), eOutUnit);
}
void SwPercentField::set_min(int nNewMin, FieldUnit eInUnit)
{
if (m_pField->get_unit() != FieldUnit::PERCENT)
m_pField->set_min(nNewMin, eInUnit);
else
{
if (eInUnit == FieldUnit::NONE)
eInUnit = eOldUnit;
nOldMin = Convert(nNewMin, eInUnit, eOldUnit);
int nPercent = Convert(nNewMin, eInUnit, FieldUnit::PERCENT);
m_pField->set_min(std::max(1, nPercent), FieldUnit::NONE);
}
}
void SwPercentField::set_max(int nNewMax, FieldUnit eInUnit)
{
if (m_pField->get_unit() != FieldUnit::PERCENT)
m_pField->set_max(nNewMax, eInUnit);
}
int SwPercentField::NormalizePercent(int nValue)
{
if (m_pField->get_unit() != FieldUnit::PERCENT)
nValue = m_pField->normalize(nValue);
else
nValue = nValue * ImpPower10(nOldDigits);
return nValue;
}
int SwPercentField::DenormalizePercent(int nValue)
{
if (m_pField->get_unit() != FieldUnit::PERCENT)
nValue = m_pField->denormalize(nValue);
else
{
int nFactor = ImpPower10(nOldDigits);
nValue = ((nValue+(nFactor/2)) / nFactor);
}
return nValue;
}
int SwPercentField::ImpPower10(sal_uInt16 n)
{
int nValue = 1;
for (sal_uInt16 i=0; i < n; ++i)
nValue *= 10;
return nValue;
}
int SwPercentField::GetRealValue(FieldUnit eOutUnit)
{
if (m_pField->get_unit() != FieldUnit::PERCENT)
return get_value(eOutUnit);
else
return Convert(get_value(), m_pField->get_unit(), eOutUnit);
}
int SwPercentField::Convert(int nValue, FieldUnit eInUnit, FieldUnit eOutUnit)
{
if (eInUnit == eOutUnit ||
(eInUnit == FieldUnit::NONE && eOutUnit == m_pField->get_unit()) ||
(eOutUnit == FieldUnit::NONE && eInUnit == m_pField->get_unit()))
return nValue;
if (eInUnit == FieldUnit::PERCENT)
{
// Convert to metric
int nTwipValue = (nRefValue * nValue + 50) / 100;
if (eOutUnit == FieldUnit::TWIP) // Only convert if necessary
return NormalizePercent(nTwipValue);
else
return vcl::ConvertValue(NormalizePercent(nTwipValue), 0, nOldDigits, FieldUnit::TWIP, eOutUnit);
}
if (eOutUnit == FieldUnit::PERCENT)
{
// Convert to percent
int nCurrentWidth;
nValue = DenormalizePercent(nValue);
if (eInUnit == FieldUnit::TWIP) // Only convert if necessary
nCurrentWidth = nValue;
else
nCurrentWidth = vcl::ConvertValue(nValue, 0, nOldDigits, eInUnit, FieldUnit::TWIP);
// Round to 0.5 percent
return nRefValue ? (((nCurrentWidth * 1000) / nRefValue + 5) / 10) : 0;
}
return vcl::ConvertValue(nValue, 0, nOldDigits, eInUnit, eOutUnit);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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