aboutsummaryrefslogtreecommitdiff
path: root/src/qt/utilitydialog.cpp
blob: d16feba1bb696231e38dedc4302f991cd07d231d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
// Copyright (c) 2011-2020 The Bitcoin 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 <config/bitcoin-config.h>
#endif

#include <qt/utilitydialog.h>

#include <qt/forms/ui_helpmessagedialog.h>

#include <clientversion.h>
#include <init.h>
#include <util/system.h>
#include <util/strencodings.h>

#include <stdio.h>

#include <QCloseEvent>
#include <QLabel>
#include <QMainWindow>
#include <QRegExp>
#include <QTextCursor>
#include <QTextTable>
#include <QVBoxLayout>

/** "Help message" or "About" dialog box */
HelpMessageDialog::HelpMessageDialog(interfaces::Node& node, QWidget *parent, bool about) :
    QDialog(parent),
    ui(new Ui::HelpMessageDialog)
{
    ui->setupUi(this);

    QString version = QString{PACKAGE_NAME} + " " + tr("version") + " " + QString::fromStdString(FormatFullVersion());

    if (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, "<a href=\"\\1\">\\1</a>");
        // Replace newlines with HTML breaks
        licenseInfoHTML.replace("\n", "<br>");

        ui->aboutMessage->setTextFormat(Qt::RichText);
        ui->scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
        text = version + "\n" + QString::fromStdString(FormatParagraph(licenseInfo));
        ui->aboutMessage->setText(version + "<br><br>" + licenseInfoHTML);
        ui->aboutMessage->setWordWrap(true);
        ui->helpMessage->setVisible(false);
    } else {
        setWindowTitle(tr("Command-line options"));
        QString header = "Usage:  bitcoin-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<QTextLength> 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);
        ui->aboutLogo->setVisible(false);
    }
}

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(QWidget *parent, Qt::WindowFlags f):
    QWidget(parent, f)
{
    QVBoxLayout *layout = new QVBoxLayout();
    layout->addWidget(new QLabel(
        tr("%1 is shutting down...").arg(PACKAGE_NAME) + "<br /><br />" +
        tr("Do not shut down the computer until this window disappears.")));
    setLayout(layout);
}

QWidget* ShutdownWindow::showShutdownWindow(QMainWindow* window)
{
    assert(window != nullptr);

    // Show a simple window indicating shutdown status
    QWidget *shutdownWindow = new ShutdownWindow();
    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();
}