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Diffstat (limited to 'kmymoney2/dialogs/kcurrencycalculator.cpp')
| -rw-r--r-- | kmymoney2/dialogs/kcurrencycalculator.cpp | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/kmymoney2/dialogs/kcurrencycalculator.cpp b/kmymoney2/dialogs/kcurrencycalculator.cpp new file mode 100644 index 0000000..6e674dc --- /dev/null +++ b/kmymoney2/dialogs/kcurrencycalculator.cpp @@ -0,0 +1,315 @@ +/*************************************************************************** + kcurrencycalculator.cpp - description + ------------------- + begin : Thu Apr 8 2004 + copyright : (C) 2000-2004 by Michael Edwardes + email : mte@users.sourceforge.net + Javier Campos Morales <javi_c@users.sourceforge.net> + Felix Rodriguez <frodriguez@users.sourceforge.net> + John C <thetacoturtle@users.sourceforge.net> + Thomas Baumgart <ipwizard@users.sourceforge.net> + Kevin Tambascio <ktambascio@users.sourceforge.net> + ***************************************************************************/ + +/*************************************************************************** + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ + +// ---------------------------------------------------------------------------- +// QT Includes + +#include <qlabel.h> +#include <qradiobutton.h> +#include <qcheckbox.h> +#include <qwidgetstack.h> +#include <qgroupbox.h> + +// ---------------------------------------------------------------------------- +// KDE Includes + +#include <klocale.h> +#include <kpushbutton.h> +#include <kcombobox.h> +#include <kstdguiitem.h> + +// ---------------------------------------------------------------------------- +// Project Includes + +#include "kcurrencycalculator.h" + +#include <kmymoney/kmymoneyedit.h> +#include <kmymoney/kmymoneydateinput.h> +#include <kmymoney/kmymoneycurrencyselector.h> +#include <kmymoney/mymoneyprice.h> +#include <kmymoney/mymoneytransaction.h> +#include <kmymoney/kmymoneyglobalsettings.h> + +#include "../kmymoneyutils.h" + +bool KCurrencyCalculator::setupSplitPrice(MyMoneyMoney& shares, const MyMoneyTransaction& t, const MyMoneySplit& s, const QMap<QString, MyMoneyMoney>& priceInfo, QWidget* parentWidget) +{ + bool rc = true; + MyMoneyFile* file = MyMoneyFile::instance(); + + if(!s.value().isZero()) { + MyMoneyAccount cat = file->account(s.accountId()); + MyMoneySecurity toCurrency; + toCurrency = file->security(cat.currencyId()); + // determine the fraction required for this category/account + int fract = cat.fraction(toCurrency); + + if(cat.currencyId() != t.commodity()) { + + MyMoneySecurity fromCurrency; + MyMoneyMoney fromValue, toValue; + fromCurrency = file->security(t.commodity()); + // display only positive values to the user + fromValue = s.value().abs(); + + // if we had a price info in the beginning, we use it here + if(priceInfo.find(cat.currencyId()) != priceInfo.end()) { + toValue = (fromValue * priceInfo[cat.currencyId()]).convert(fract); + } + + // if the shares are still 0, we need to change that + if(toValue.isZero()) { + MyMoneyPrice price = file->price(fromCurrency.id(), toCurrency.id()); + // if the price is valid calculate the shares. If it is invalid + // assume a conversion rate of 1.0 + if(price.isValid()) { + toValue = (price.rate(toCurrency.id()) * fromValue).convert(fract); + } else { + toValue = fromValue; + } + } + + // now present all that to the user + KCurrencyCalculator calc(fromCurrency, + toCurrency, + fromValue, + toValue, + t.postDate(), + fract, + parentWidget, "currencyCalculator"); + + if(calc.exec() == QDialog::Rejected) { + rc = false; + } else + shares = (s.value() * calc.price()).convert(fract); + + } else { + shares = s.value().convert(fract); + } + } else + shares = s.value(); + + return rc; +} + +KCurrencyCalculator::KCurrencyCalculator(const MyMoneySecurity& from, const MyMoneySecurity& to, const MyMoneyMoney& value, const MyMoneyMoney& shares, const QDate& date, const signed64 resultFraction, QWidget *parent, const char *name ) : + KCurrencyCalculatorDecl(parent, name), + m_fromCurrency(from), + m_toCurrency(to), + m_result(shares.abs()), + m_value(value.abs()), + m_resultFraction(resultFraction) +{ + MyMoneyFile* file = MyMoneyFile::instance(); + + m_dateFrame->hide(); + if(date.isValid()) + m_dateEdit->setDate(date); + else + m_dateEdit->setDate(QDate::currentDate()); + + m_fromCurrencyText->setText(m_fromCurrency.isCurrency() ? m_fromCurrency.id() : m_fromCurrency.tradingSymbol()); + m_toCurrencyText->setText(m_toCurrency.isCurrency() ? m_toCurrency.id() : m_toCurrency.tradingSymbol()); + + m_fromAmount->setText(m_value.formatMoney("", MyMoneyMoney::denomToPrec(m_fromCurrency.smallestAccountFraction()))); + + m_dateText->setText(KGlobal::locale()->formatDate(date, true)); + + m_fromType->setText(KMyMoneyUtils::securityTypeToString(m_fromCurrency.securityType())); + m_toType->setText(KMyMoneyUtils::securityTypeToString(m_toCurrency.securityType())); + + // load button icons + m_cancelButton->setGuiItem(KStdGuiItem::cancel()); + m_okButton->setGuiItem(KStdGuiItem::ok()); + + m_updateButton->setChecked(KMyMoneyGlobalSettings::priceHistoryUpdate()); + + // setup initial result + if(m_result == MyMoneyMoney() && !m_value.isZero()) { + MyMoneyPrice pr = file->price(m_fromCurrency.id(), m_toCurrency.id(), date); + if(pr.isValid()) { + m_result = m_value * pr.rate(m_fromCurrency.id()); + } + } + + // fill in initial values + m_toAmount->loadText(m_result.formatMoney("", MyMoneyMoney::denomToPrec(m_resultFraction))); + m_toAmount->setPrecision(MyMoneyMoney::denomToPrec(m_resultFraction)); + + m_conversionRate->setPrecision(KMyMoneyGlobalSettings::pricePrecision()); + + connect(m_amountButton, SIGNAL(clicked()), this, SLOT(slotSetToAmount())); + connect(m_rateButton, SIGNAL(clicked()), this, SLOT(slotSetExchangeRate())); + + connect(m_toAmount, SIGNAL(valueChanged(const QString&)), this, SLOT(slotUpdateResult(const QString&))); + connect(m_conversionRate, SIGNAL(valueChanged(const QString&)), this, SLOT(slotUpdateRate(const QString&))); + connect(m_cancelButton, SIGNAL(clicked()), this, SLOT(reject())); + connect(m_okButton, SIGNAL(clicked()), this, SLOT(accept())); + + // use this as the default + m_amountButton->animateClick(); + slotUpdateResult(m_toAmount->text()); + + // If the from security is not a currency, we only allow entering a price + if(!m_fromCurrency.isCurrency()) { + m_rateButton->animateClick(); + m_amountButton->hide(); + m_toAmount->hide(); + } + m_okButton->setFocus(); +} + +KCurrencyCalculator::~KCurrencyCalculator() +{ +} + +void KCurrencyCalculator::setupPriceEditor(void) +{ + m_dateFrame->show(); + m_amountDateFrame->hide(); + m_updateButton->setChecked(true); + m_updateButton->hide(); +} + +void KCurrencyCalculator::slotSetToAmount(void) +{ + m_rateButton->setChecked(false); + m_toAmount->setEnabled(true); + m_conversionRate->setEnabled(false); +} + +void KCurrencyCalculator::slotSetExchangeRate(void) +{ + m_amountButton->setChecked(false); + m_toAmount->setEnabled(false); + m_conversionRate->setEnabled(true); +} + +void KCurrencyCalculator::slotUpdateResult(const QString& /*txt*/) +{ + MyMoneyMoney result = m_toAmount->value(); + MyMoneyMoney price(0, 1); + + if(result.isNegative()) { + m_toAmount->setValue(-result); + slotUpdateResult(QString()); + return; + } + + if(!result.isZero()) { + price = result / m_value; + + m_conversionRate->loadText(price.formatMoney("", KMyMoneyGlobalSettings::pricePrecision())); + m_result = (m_value * price).convert(m_resultFraction); + m_toAmount->loadText(m_result.formatMoney("", MyMoneyMoney::denomToPrec(m_resultFraction))); + } + updateExample(price); +} + +void KCurrencyCalculator::slotUpdateRate(const QString& /*txt*/) +{ + MyMoneyMoney price = m_conversionRate->value(); + + if(price.isNegative()) { + m_conversionRate->setValue(-price); + slotUpdateRate(QString()); + return; + } + + if(!price.isZero()) { + m_conversionRate->loadText(price.formatMoney("", KMyMoneyGlobalSettings::pricePrecision())); + m_result = (m_value * price).convert(m_resultFraction); + m_toAmount->loadText(m_result.formatMoney("", MyMoneyMoney::denomToPrec(m_resultFraction))); + } + updateExample(price); +} + +void KCurrencyCalculator::updateExample(const MyMoneyMoney& price) +{ + QString msg; + if(price.isZero()) { + msg = QString("1 %1 = ? %2").arg(m_fromCurrency.tradingSymbol()) + .arg(m_toCurrency.tradingSymbol()); + if(m_fromCurrency.isCurrency()) { + msg += QString("\n"); + msg += QString("1 %1 = ? %2").arg(m_toCurrency.tradingSymbol()) + .arg(m_fromCurrency.tradingSymbol()); + } + } else { + msg = QString("1 %1 = %2 %3").arg(m_fromCurrency.tradingSymbol()) + .arg(price.formatMoney("", KMyMoneyGlobalSettings::pricePrecision())) + .arg(m_toCurrency.tradingSymbol()); + if(m_fromCurrency.isCurrency()) { + msg += QString("\n"); + msg += QString("1 %1 = %2 %3").arg(m_toCurrency.tradingSymbol()) + .arg((MyMoneyMoney(1,1)/price).formatMoney("", KMyMoneyGlobalSettings::pricePrecision())) + .arg(m_fromCurrency.tradingSymbol()); + } + } + m_conversionExample->setText(msg); + m_okButton->setEnabled(!price.isZero()); +} + +void KCurrencyCalculator::accept(void) +{ + if(m_conversionRate->isEnabled()) + slotUpdateRate(QString()); + else + slotUpdateResult(QString()); + + if(m_updateButton->isChecked()) { + MyMoneyPrice pr = MyMoneyFile::instance()->price(m_fromCurrency.id(), m_toCurrency.id(), m_dateEdit->date()); + if(!pr.isValid() + || pr.date() != m_dateEdit->date() + || (pr.date() == m_dateEdit->date() && pr.rate(m_fromCurrency.id()) != price())) { + pr = MyMoneyPrice(m_fromCurrency.id(), m_toCurrency.id(), m_dateEdit->date(), price(), i18n("User")); + MyMoneyFileTransaction ft; + try { + MyMoneyFile::instance()->addPrice(pr); + ft.commit(); + } catch(MyMoneyException *e) { + qDebug("Cannot add price"); + delete e; + } + } + } + + // remember setting for next round + KMyMoneyGlobalSettings::setPriceHistoryUpdate(m_updateButton->isChecked()); + + KCurrencyCalculatorDecl::accept(); +} + +const MyMoneyMoney KCurrencyCalculator::price(void) const +{ + // This should fix https://bugs.kde.org/show_bug.cgi?id=205254 but + // I am not sure about any side effects when dealing with multi- + // currency transactions. + // + // The following line is the original version of this code + // which causes some rounding issues (see the above bug entry) + // return m_result / m_value; + return m_conversionRate->value(); +} + + +#include "kcurrencycalculator.moc" |