// Copyright (c) 2011-2020 The Bitcoin Core developers // Copyright (c) 2014-2022 The Dash Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #if defined(HAVE_CONFIG_H) #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /** "Help message" or "About" dialog box */ HelpMessageDialog::HelpMessageDialog(interfaces::Node& node, QWidget *parent, HelpMode helpMode) : QDialog(parent), ui(new Ui::HelpMessageDialog) { ui->setupUi(this); GUIUtil::updateFonts(); QString version = QString{PACKAGE_NAME} + " " + tr("version") + " " + QString::fromStdString(FormatFullVersion()); if (helpMode == about) { setWindowTitle(tr("About %1").arg(PACKAGE_NAME)); std::string licenseInfo = LicenseInfo(); /// HTML-format the license message from the core QString licenseInfoHTML = QString::fromStdString(licenseInfo); // Make URLs clickable QRegExp uri("<(.*)>", Qt::CaseSensitive, QRegExp::RegExp2); uri.setMinimal(true); // use non-greedy matching licenseInfoHTML.replace(uri, QString("\\1").arg(GUIUtil::getThemedStyleQString(GUIUtil::ThemedStyle::TS_COMMAND))); // Replace newlines with HTML breaks licenseInfoHTML.replace("\n", "
"); ui->aboutMessage->setTextFormat(Qt::RichText); ui->scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded); text = version + "\n" + QString::fromStdString(FormatParagraph(licenseInfo)); ui->aboutMessage->setText(version + "

" + licenseInfoHTML); ui->aboutMessage->setWordWrap(true); ui->helpMessage->setVisible(false); } else if (helpMode == cmdline) { setWindowTitle(tr("Command-line options")); QString header = "Usage: dash-qt [command-line options] \n"; QTextCursor cursor(ui->helpMessage->document()); cursor.insertText(version); cursor.insertBlock(); cursor.insertText(header); cursor.insertBlock(); std::string strUsage = gArgs.GetHelpMessage(); QString coreOptions = QString::fromStdString(strUsage); text = version + "\n\n" + header + "\n" + coreOptions; QTextTableFormat tf; tf.setBorderStyle(QTextFrameFormat::BorderStyle_None); tf.setCellPadding(2); QVector widths; widths << QTextLength(QTextLength::PercentageLength, 35); widths << QTextLength(QTextLength::PercentageLength, 65); tf.setColumnWidthConstraints(widths); QTextCharFormat bold; bold.setFontWeight(QFont::Bold); for (const QString &line : coreOptions.split("\n")) { if (line.startsWith(" -")) { cursor.currentTable()->appendRows(1); cursor.movePosition(QTextCursor::PreviousCell); cursor.movePosition(QTextCursor::NextRow); cursor.insertText(line.trimmed()); cursor.movePosition(QTextCursor::NextCell); } else if (line.startsWith(" ")) { cursor.insertText(line.trimmed()+' '); } else if (line.size() > 0) { //Title of a group if (cursor.currentTable()) cursor.currentTable()->appendRows(1); cursor.movePosition(QTextCursor::Down); cursor.insertText(line.trimmed(), bold); cursor.insertTable(1, 2, tf); } } ui->helpMessage->moveCursor(QTextCursor::Start); ui->scrollArea->setVisible(false); } else if (helpMode == pshelp) { QString strCoinJoinName = QString::fromStdString(gCoinJoinName); setWindowTitle(tr("%1 information").arg(strCoinJoinName)); ui->aboutMessage->setTextFormat(Qt::RichText); ui->scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded); ui->aboutMessage->setText(tr("\

%1 Basics

\ %1 gives you true financial privacy by obscuring the origins of your funds. \ All the Dash in your wallet is comprised of different \"inputs\" which you can think of as separate, discrete coins.
\ %1 uses an innovative process to mix your inputs with the inputs of two or more other people, without having your coins ever leave your wallet. \ You retain control of your money at all times.
\ The %1 process works like this:\
    \
  1. %1 begins by breaking your transaction inputs down into standard denominations. \ These denominations are 0.001 DASH, 0.01 DASH, 0.1 DASH, 1 DASH and 10 DASH -- sort of like the paper money you use every day.
    2. \
  2. Your wallet then sends requests to specially configured software nodes on the network, called \"masternodes.\" \ These masternodes are informed then that you are interested in mixing a certain denomination. \ No identifiable information is sent to the masternodes, so they never know \"who\" you are.
    3. \
  3. When two or more other people send similar messages, indicating that they wish to mix the same denomination, a mixing session begins. \ The masternode mixes up the inputs and instructs all three users' wallets to pay the now-transformed input back to themselves. \ Your wallet pays that denomination directly to itself, but in a different address (called a change address).
    4. \
  4. In order to fully obscure your funds, your wallet must repeat this process a number of times with each denomination. \ Each time the process is completed, it's called a \"round.\" Each round of %1 makes it exponentially more difficult to determine where your funds originated.
    5. \
  5. This mixing process happens in the background without any intervention on your part. When you wish to make a transaction, \ your funds will already be mixed. No additional waiting is required.
    6. \
\ IMPORTANT: Your wallet only contains 1000 of these \"change addresses.\" Every time a mixing event happens, up to 9 of your addresses are used up. \ This means those 1000 addresses last for about 100 mixing events. When 900 of them are used, your wallet must create more addresses. \ It can only do this, however, if you have automatic backups enabled.
\ Consequently, users who have backups disabled will also have %1 disabled.
\ For more information, see the %1 documentation." ) .arg(strCoinJoinName) .arg(GUIUtil::getThemedStyleQString(GUIUtil::ThemedStyle::TS_COMMAND)) .arg("https://docs.dash.org/en/stable/wallets/dashcore/coinjoin-instantsend.html") ); ui->aboutMessage->setWordWrap(true); ui->helpMessage->setVisible(false); } GUIUtil::handleCloseWindowShortcut(this); } HelpMessageDialog::~HelpMessageDialog() { delete ui; } void HelpMessageDialog::printToConsole() { // On other operating systems, the expected action is to print the message to the console. tfm::format(std::cout, "%s\n", qPrintable(text)); } void HelpMessageDialog::showOrPrint() { #if defined(WIN32) // On Windows, show a message box, as there is no stderr/stdout in windowed applications exec(); #else // On other operating systems, print help text to console printToConsole(); #endif } void HelpMessageDialog::on_okButton_accepted() { close(); } /** "Shutdown" window */ ShutdownWindow::ShutdownWindow(interfaces::Node& node, QWidget *parent, Qt::WindowFlags f): QWidget(parent, f) { setObjectName("ShutdownWindow"); QVBoxLayout *layout = new QVBoxLayout(); layout->addWidget(new QLabel( tr("%1 is shutting down...").arg(PACKAGE_NAME) + "

" + tr("Do not shut down the computer until this window disappears."))); setLayout(layout); GUIUtil::updateFonts(); GUIUtil::handleCloseWindowShortcut(this); } QWidget* ShutdownWindow::showShutdownWindow(interfaces::Node& node, QMainWindow* window) { assert(window != nullptr); // Show a simple window indicating shutdown status QWidget *shutdownWindow = new ShutdownWindow(node); shutdownWindow->setWindowTitle(window->windowTitle()); // Center shutdown window at where main window was const QPoint global = window->mapToGlobal(window->rect().center()); shutdownWindow->move(global.x() - shutdownWindow->width() / 2, global.y() - shutdownWindow->height() / 2); shutdownWindow->show(); return shutdownWindow; } void ShutdownWindow::closeEvent(QCloseEvent *event) { event->ignore(); }