src/qt/utilitydialog.cpp

   1 // Copyright (c) 2011-2017 The Bitcoin Core developers
   2 // Distributed under the MIT software license, see the accompanying
   3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   4
   5 #if defined(HAVE_CONFIG_H)
   6 #include <config/bitcoin-config.h>
   7 #endif
   8
   9 #include <qt/utilitydialog.h>
  10
  11 #include <qt/forms/ui_helpmessagedialog.h>
  12
  13 #include <qt/bitcoingui.h>
  14 #include <qt/clientmodel.h>
  15 #include <qt/guiconstants.h>
  16 #include <qt/intro.h>
  17 #include <qt/paymentrequestplus.h>
  18 #include <qt/guiutil.h>
  19
  20 #include <clientversion.h>
  21 #include <init.h>
  22 #include <util.h>
  23
  24 #include <stdio.h>
  25
  26 #include <QCloseEvent>
  27 #include <QLabel>
  28 #include <QRegExp>
  29 #include <QTextTable>
  30 #include <QTextCursor>
  31 #include <QVBoxLayout>
  32
  33 /** "Help message" or "About" dialog box */
  34 HelpMessageDialog::HelpMessageDialog(QWidget *parent, bool about) :
  35     QDialog(parent),
  36     ui(new Ui::HelpMessageDialog)
  37 {
  38     ui->setupUi(this);
  39
  40     QString version = tr(PACKAGE_NAME) + " " + tr("version") + " " + QString::fromStdString(FormatFullVersion());
  41     /* On x86 add a bit specifier to the version so that users can distinguish between
  42      * 32 and 64 bit builds. On other architectures, 32/64 bit may be more ambiguous.
  43      */
  44 #if defined(__x86_64__)
  45     version += " " + tr("(%1-bit)").arg(64);
  46 #elif defined(__i386__ )
  47     version += " " + tr("(%1-bit)").arg(32);
  48 #endif
  49
  50     if (about)
  51     {
  52         setWindowTitle(tr("About %1").arg(tr(PACKAGE_NAME)));
  53
  54         /// HTML-format the license message from the core
  55         QString licenseInfo = QString::fromStdString(LicenseInfo());
  56         QString licenseInfoHTML = licenseInfo;
  57         // Make URLs clickable
  58         QRegExp uri("<(.*)>", Qt::CaseSensitive, QRegExp::RegExp2);
  59         uri.setMinimal(true); // use non-greedy matching
  60         licenseInfoHTML.replace(uri, "<a href=\"\\1\">\\1</a>");
  61         // Replace newlines with HTML breaks
  62         licenseInfoHTML.replace("\n", "<br>");
  63
  64         ui->aboutMessage->setTextFormat(Qt::RichText);
  65         ui->scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
  66         text = version + "\n" + licenseInfo;
  67         ui->aboutMessage->setText(version + "<br><br>" + licenseInfoHTML);
  68         ui->aboutMessage->setWordWrap(true);
  69         ui->helpMessage->setVisible(false);
  70     } else {
  71         setWindowTitle(tr("Command-line options"));
  72         QString header = tr("Usage:") + "\n" +
  73             "  bitcoin-qt [" + tr("command-line options") + "]                     " + "\n";
  74         QTextCursor cursor(ui->helpMessage->document());
  75         cursor.insertText(version);
  76         cursor.insertBlock();
  77         cursor.insertText(header);
  78         cursor.insertBlock();
  79
  80         std::string strUsage = HelpMessage(HMM_BITCOIN_QT);
  81         const bool showDebug = gArgs.GetBoolArg("-help-debug", false);
  82         strUsage += HelpMessageGroup(tr("UI Options:").toStdString());
  83         if (showDebug) {
  84             strUsage += HelpMessageOpt("-allowselfsignedrootcertificates", strprintf("Allow self signed root certificates (default: %u)", DEFAULT_SELFSIGNED_ROOTCERTS));
  85         }
  86         strUsage += HelpMessageOpt("-choosedatadir", strprintf(tr("Choose data directory on startup (default: %u)").toStdString(), DEFAULT_CHOOSE_DATADIR));
  87         strUsage += HelpMessageOpt("-lang=<lang>", tr("Set language, for example \"de_DE\" (default: system locale)").toStdString());
  88         strUsage += HelpMessageOpt("-min", tr("Start minimized").toStdString());
  89         strUsage += HelpMessageOpt("-rootcertificates=<file>", tr("Set SSL root certificates for payment request (default: -system-)").toStdString());
  90         strUsage += HelpMessageOpt("-splash", strprintf(tr("Show splash screen on startup (default: %u)").toStdString(), DEFAULT_SPLASHSCREEN));
  91         strUsage += HelpMessageOpt("-resetguisettings", tr("Reset all settings changed in the GUI").toStdString());
  92         if (showDebug) {
  93             strUsage += HelpMessageOpt("-uiplatform", strprintf("Select platform to customize UI for (one of windows, macosx, other; default: %s)", BitcoinGUI::DEFAULT_UIPLATFORM));
  94         }
  95         QString coreOptions = QString::fromStdString(strUsage);
  96         text = version + "\n" + header + "\n" + coreOptions;
  97
  98         QTextTableFormat tf;
  99         tf.setBorderStyle(QTextFrameFormat::BorderStyle_None);
 100         tf.setCellPadding(2);
 101         QVector<QTextLength> widths;
 102         widths << QTextLength(QTextLength::PercentageLength, 35);
 103         widths << QTextLength(QTextLength::PercentageLength, 65);
 104         tf.setColumnWidthConstraints(widths);
 105
 106         QTextCharFormat bold;
 107         bold.setFontWeight(QFont::Bold);
 108
 109         for (const QString &line : coreOptions.split("\n")) {
 110             if (line.startsWith("  -"))
 111             {
 112                 cursor.currentTable()->appendRows(1);
 113                 cursor.movePosition(QTextCursor::PreviousCell);
 114                 cursor.movePosition(QTextCursor::NextRow);
 115                 cursor.insertText(line.trimmed());
 116                 cursor.movePosition(QTextCursor::NextCell);
 117             } else if (line.startsWith("   ")) {
 118                 cursor.insertText(line.trimmed()+' ');
 119             } else if (line.size() > 0) {
 120                 //Title of a group
 121                 if (cursor.currentTable())
 122                     cursor.currentTable()->appendRows(1);
 123                 cursor.movePosition(QTextCursor::Down);
 124                 cursor.insertText(line.trimmed(), bold);
 125                 cursor.insertTable(1, 2, tf);
 126             }
 127         }
 128
 129         ui->helpMessage->moveCursor(QTextCursor::Start);
 130         ui->scrollArea->setVisible(false);
 131         ui->aboutLogo->setVisible(false);
 132     }
 133 }
 134
 135 HelpMessageDialog::~HelpMessageDialog()
 136 {
 137     delete ui;
 138 }
 139
 140 void HelpMessageDialog::printToConsole()
 141 {
 142     // On other operating systems, the expected action is to print the message to the console.
 143     fprintf(stdout, "%s\n", qPrintable(text));
 144 }
 145
 146 void HelpMessageDialog::showOrPrint()
 147 {
 148 #if defined(WIN32)
 149     // On Windows, show a message box, as there is no stderr/stdout in windowed applications
 150     exec();
 151 #else
 152     // On other operating systems, print help text to console
 153     printToConsole();
 154 #endif
 155 }
 156
 157 void HelpMessageDialog::on_okButton_accepted()
 158 {
 159     close();
 160 }
 161
 162
 163 /** "Shutdown" window */
 164 ShutdownWindow::ShutdownWindow(QWidget *parent, Qt::WindowFlags f):
 165     QWidget(parent, f)
 166 {
 167     QVBoxLayout *layout = new QVBoxLayout();
 168     layout->addWidget(new QLabel(
 169         tr("%1 is shutting down...").arg(tr(PACKAGE_NAME)) + "<br /><br />" +
 170         tr("Do not shut down the computer until this window disappears.")));
 171     setLayout(layout);
 172 }
 173
 174 QWidget *ShutdownWindow::showShutdownWindow(BitcoinGUI *window)
 175 {
 176     if (!window)
 177         return nullptr;
 178
 179     // Show a simple window indicating shutdown status
 180     QWidget *shutdownWindow = new ShutdownWindow();
 181     shutdownWindow->setWindowTitle(window->windowTitle());
 182
 183     // Center shutdown window at where main window was
 184     const QPoint global = window->mapToGlobal(window->rect().center());
 185     shutdownWindow->move(global.x() - shutdownWindow->width() / 2, global.y() - shutdownWindow->height() / 2);
 186     shutdownWindow->show();
 187     return shutdownWindow;
 188 }
 189
 190 void ShutdownWindow::closeEvent(QCloseEvent *event)
 191 {
 192     event->ignore();
 193 }