diff options
Diffstat (limited to 'sw/source/uibase/utlui/prcntfld.cxx')
| -rw-r--r-- | sw/source/uibase/utlui/prcntfld.cxx | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/sw/source/uibase/utlui/prcntfld.cxx b/sw/source/uibase/utlui/prcntfld.cxx new file mode 100644 index 000000000..4c8eede66 --- /dev/null +++ b/sw/source/uibase/utlui/prcntfld.cxx @@ -0,0 +1,231 @@ +/* -*- 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)) + , m_nOldMax(0) + , m_nOldMin(0) + , m_nLastPercent(-1) + , m_nLastValue(-1) + , m_nOldDigits(m_pField->get_digits()) + , m_eOldUnit(FieldUnit::NONE) + , m_bLockAutoCalculation(false) +{ + sal_Int64 nMin, nMax; + m_pField->get_range(nMin, nMax, FieldUnit::TWIP); + m_nRefValue = DenormalizePercent(nMax); + m_pField->get_increments(m_nOldSpinSize, m_nOldPageSize, FieldUnit::NONE); +} + +void SwPercentField::SetRefValue(sal_Int64 nValue) +{ + sal_Int64 nRealValue = GetRealValue(m_eOldUnit); + + m_nRefValue = nValue; + + if (!m_bLockAutoCalculation && (m_pField->get_unit() == FieldUnit::PERCENT)) + set_value(nRealValue, m_eOldUnit); +} + +void SwPercentField::ShowPercent(bool bPercent) +{ + if ((bPercent && m_pField->get_unit() == FieldUnit::PERCENT) + || (!bPercent && m_pField->get_unit() != FieldUnit::PERCENT)) + return; + + sal_Int64 nOldValue; + + if (bPercent) + { + nOldValue = get_value(); + + m_eOldUnit = m_pField->get_unit(); + m_nOldDigits = m_pField->get_digits(); + m_pField->get_range(m_nOldMin, m_nOldMax, FieldUnit::NONE); + m_pField->get_increments(m_nOldSpinSize, m_nOldPageSize, FieldUnit::NONE); + m_pField->set_unit(FieldUnit::PERCENT); + m_pField->set_digits(0); + + sal_Int64 nCurrentWidth + = vcl::ConvertValue(m_nOldMin, 0, m_nOldDigits, m_eOldUnit, FieldUnit::TWIP); + // round to 0.5 percent + int nPercent = m_nRefValue ? (((nCurrentWidth * 10) / m_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 != m_nLastValue) + { + nCurrentWidth + = vcl::ConvertValue(nOldValue, 0, m_nOldDigits, m_eOldUnit, FieldUnit::TWIP); + nPercent = m_nRefValue ? (((nCurrentWidth * 10) / m_nRefValue + 5) / 10) : 0; + m_pField->set_value(nPercent, FieldUnit::NONE); + m_nLastPercent = nPercent; + m_nLastValue = nOldValue; + } + else + m_pField->set_value(m_nLastPercent, FieldUnit::NONE); + } + else + { + sal_Int64 nOldPercent = get_value(FieldUnit::PERCENT); + + nOldValue = Convert(get_value(), m_pField->get_unit(), m_eOldUnit); + + m_pField->set_unit(m_eOldUnit); + m_pField->set_digits(m_nOldDigits); + m_pField->set_range(m_nOldMin, m_nOldMax, FieldUnit::NONE); + m_pField->set_increments(m_nOldSpinSize, m_nOldPageSize, FieldUnit::NONE); + + if (nOldPercent != m_nLastPercent) + { + set_value(nOldValue, m_eOldUnit); + m_nLastPercent = nOldPercent; + m_nLastValue = nOldValue; + } + else + set_value(m_nLastValue, m_eOldUnit); + } +} + +void SwPercentField::set_value(sal_Int64 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 + sal_Int64 nPercent, nCurrentWidth; + if (eInUnit == FieldUnit::TWIP) + { + nCurrentWidth + = vcl::ConvertValue(nNewValue, 0, m_nOldDigits, FieldUnit::TWIP, FieldUnit::TWIP); + } + else + { + sal_Int64 nValue = Convert(nNewValue, eInUnit, m_eOldUnit); + nCurrentWidth = vcl::ConvertValue(nValue, 0, m_nOldDigits, m_eOldUnit, FieldUnit::TWIP); + } + nPercent = m_nRefValue ? (((nCurrentWidth * 10) / m_nRefValue + 5) / 10) : 0; + m_pField->set_value(nPercent, FieldUnit::NONE); + } +} + +sal_Int64 SwPercentField::get_value(FieldUnit eOutUnit) +{ + return Convert(m_pField->get_value(FieldUnit::NONE), m_pField->get_unit(), eOutUnit); +} + +void SwPercentField::set_min(sal_Int64 nNewMin, FieldUnit eInUnit) +{ + if (m_pField->get_unit() != FieldUnit::PERCENT) + m_pField->set_min(nNewMin, eInUnit); + else + { + if (eInUnit == FieldUnit::NONE) + eInUnit = m_eOldUnit; + m_nOldMin = Convert(nNewMin, eInUnit, m_eOldUnit); + + int nPercent = Convert(nNewMin, eInUnit, FieldUnit::PERCENT); + m_pField->set_min(std::max(1, nPercent), FieldUnit::NONE); + } +} + +void SwPercentField::set_max(sal_Int64 nNewMax, FieldUnit eInUnit) +{ + if (m_pField->get_unit() != FieldUnit::PERCENT) + m_pField->set_max(nNewMax, eInUnit); +} + +sal_Int64 SwPercentField::NormalizePercent(sal_Int64 nValue) +{ + if (m_pField->get_unit() != FieldUnit::PERCENT) + nValue = m_pField->normalize(nValue); + else + nValue = nValue * ImpPower10(m_nOldDigits); + return nValue; +} + +sal_Int64 SwPercentField::DenormalizePercent(sal_Int64 nValue) +{ + if (m_pField->get_unit() != FieldUnit::PERCENT) + nValue = m_pField->denormalize(nValue); + else + { + int nFactor = ImpPower10(m_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; +} + +sal_Int64 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); +} + +sal_Int64 SwPercentField::Convert(sal_Int64 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 + sal_Int64 nTwipValue = (m_nRefValue * nValue + 50) / 100; + + if (eOutUnit == FieldUnit::TWIP) // Only convert if necessary + return NormalizePercent(nTwipValue); + else + return vcl::ConvertValue(NormalizePercent(nTwipValue), 0, m_nOldDigits, FieldUnit::TWIP, + eOutUnit); + } + + if (eOutUnit == FieldUnit::PERCENT) + { + // Convert to percent + sal_Int64 nCurrentWidth; + nValue = DenormalizePercent(nValue); + + if (eInUnit == FieldUnit::TWIP) // Only convert if necessary + nCurrentWidth = nValue; + else + nCurrentWidth = vcl::ConvertValue(nValue, 0, m_nOldDigits, eInUnit, FieldUnit::TWIP); + // Round to 0.5 percent + return m_nRefValue ? (((nCurrentWidth * 1000) / m_nRefValue + 5) / 10) : 0; + } + + return vcl::ConvertValue(nValue, 0, m_nOldDigits, eInUnit, eOutUnit); +} +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |