wowlet/src/calcwidget.cpp

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// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) 2020, The Monero Project.
#include <QList>
#include "calcwidget.h"
#include "ui_calcwidget.h"
#include "utils/config.h"
#include "mainwindow.h"
CalcWidget::CalcWidget(QWidget *parent) :
QWidget(parent),
ui(new Ui::CalcWidget)
{
ui->setupUi(this);
ui->imageExchange->setBackgroundRole(QPalette::Base);
QPixmap pm(":/assets/images/exchange.png");
ui->imageExchange->setPixmap(pm);
ui->imageExchange->setScaledContents(true);
ui->imageExchange->setFixedSize(26, 26);
// validator/locale for input
QLocale lo(QLocale::C);
lo.setNumberOptions(QLocale::RejectGroupSeparator);
auto dv = new QDoubleValidator(0.0, 2147483647, 10, this); // [0, 32bit max], 10 decimals of precision
dv->setNotation(QDoubleValidator::StandardNotation);
dv->setLocale(lo);
ui->lineFrom->setValidator(dv);
ui->lineTo->setValidator(dv);
connect(AppContext::prices, &Prices::fiatPricesUpdated, this, &CalcWidget::initFiat);
connect(AppContext::prices, &Prices::cryptoPricesUpdated, this, &CalcWidget::initCrypto);
}
void CalcWidget::fromChanged(const QString &data) {
if(!this->m_comboBoxInit) return;
if(this->m_changing){
this->m_changing = false;
return;
}
QString symbolFrom = ui->comboCalcFrom->itemText(ui->comboCalcFrom->currentIndex());
QString symbolTo = ui->comboCalcTo->itemText(ui->comboCalcTo->currentIndex());
if(symbolFrom == symbolTo){
ui->lineTo->setText(data);
return;
}
QString amount_str = ui->lineFrom->text();
if(amount_str.startsWith('.')){
ui->lineFrom->setText(ui->lineTo->text());
return;
}
double amount = amount_str.toDouble();
double result = AppContext::prices->convert(symbolFrom, symbolTo, amount);
this->m_changing = true;
int precision = 10;
if(AppContext::prices->rates.contains(symbolTo))
precision = 2;
ui->lineTo->setText(QString::number(result, 'f', precision));
}
void CalcWidget::toChanged(const QString &data) {
if(!this->m_comboBoxInit) return;
if(this->m_changing){
this->m_changing = false;
return;
}
QString symbolFrom = ui->comboCalcFrom->itemText(
ui->comboCalcFrom->currentIndex());
QString symbolTo = ui->comboCalcTo->itemText(
ui->comboCalcTo->currentIndex());
if(symbolFrom == symbolTo){
ui->lineTo->setText(ui->lineFrom->text());
return;
}
QString amount_str = ui->lineTo->text();
if(amount_str.startsWith('.')){
ui->lineTo->setText("");
return;
}
double amount = amount_str.toDouble();
double result = AppContext::prices->convert(symbolTo, symbolFrom, amount);
this->m_changing = true;
int precision = 10;
if(AppContext::prices->rates.contains(symbolFrom))
precision = 2;
ui->lineFrom->setText(QString::number(result, 'f', precision));
}
void CalcWidget::toComboChanged(const QString &data) {
this->fromChanged(data);
}
void CalcWidget::initCrypto() {
if (this->m_ctx == nullptr)
this->m_ctx = MainWindow::getContext();
this->initComboBox();
}
void CalcWidget::initFiat() {
if(this->m_ctx == nullptr)
this->m_ctx = MainWindow::getContext();
this->initComboBox();
}
void CalcWidget::initComboBox() {
if(m_comboBoxInit || this->m_ctx == nullptr) return;
QList<QString> marketsKeys = AppContext::prices->markets.keys();
QList<QString> ratesKeys = AppContext::prices->rates.keys();
if(marketsKeys.count() <= 0 || ratesKeys.count() <= 0) return;
ui->comboCalcFrom->addItems(marketsKeys);
ui->comboCalcFrom->insertSeparator(marketsKeys.count());
ui->comboCalcFrom->addItems(ratesKeys);
ui->comboCalcFrom->setCurrentIndex(marketsKeys.indexOf("XMR"));
ui->comboCalcTo->addItems(marketsKeys);
ui->comboCalcTo->insertSeparator(marketsKeys.count());
ui->comboCalcTo->addItems(ratesKeys);
auto preferredFiat = config()->get(Config::preferredFiatCurrency).toString();
ui->comboCalcTo->setCurrentText(preferredFiat);
this->m_comboBoxInit = true;
}
CalcWidget::~CalcWidget() {
delete ui;
}