aboutsummaryrefslogtreecommitdiff
path: root/src/qt/guiutil.cpp
blob: ee841ce626b82bd16326f70f8a21b6c932f962a4 (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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
// Copyright (c) 2011-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <config/bitcoin-config.h> // IWYU pragma: keep

#include <qt/guiutil.h>

#include <qt/bitcoinaddressvalidator.h>
#include <qt/bitcoinunits.h>
#include <qt/platformstyle.h>
#include <qt/qvalidatedlineedit.h>
#include <qt/sendcoinsrecipient.h>

#include <addresstype.h>
#include <base58.h>
#include <chainparams.h>
#include <common/args.h>
#include <interfaces/node.h>
#include <key_io.h>
#include <logging.h>
#include <policy/policy.h>
#include <primitives/transaction.h>
#include <protocol.h>
#include <script/script.h>
#include <util/chaintype.h>
#include <util/exception.h>
#include <util/fs.h>
#include <util/fs_helpers.h>
#include <util/time.h>

#ifdef WIN32
#include <shellapi.h>
#include <shlobj.h>
#include <shlwapi.h>
#endif

#include <QAbstractButton>
#include <QAbstractItemView>
#include <QApplication>
#include <QClipboard>
#include <QDateTime>
#include <QDesktopServices>
#include <QDialog>
#include <QDoubleValidator>
#include <QFileDialog>
#include <QFont>
#include <QFontDatabase>
#include <QFontMetrics>
#include <QGuiApplication>
#include <QJsonObject>
#include <QKeyEvent>
#include <QKeySequence>
#include <QLatin1String>
#include <QLineEdit>
#include <QList>
#include <QLocale>
#include <QMenu>
#include <QMouseEvent>
#include <QPluginLoader>
#include <QProgressDialog>
#include <QRegularExpression>
#include <QScreen>
#include <QSettings>
#include <QShortcut>
#include <QSize>
#include <QStandardPaths>
#include <QString>
#include <QTextDocument> // for Qt::mightBeRichText
#include <QThread>
#include <QUrlQuery>
#include <QtGlobal>

#include <cassert>
#include <chrono>
#include <exception>
#include <fstream>
#include <string>
#include <vector>

#if defined(Q_OS_MACOS)

#include <QProcess>

void ForceActivation();
#endif

using namespace std::chrono_literals;

namespace GUIUtil {

QString dateTimeStr(const QDateTime &date)
{
    return QLocale::system().toString(date.date(), QLocale::ShortFormat) + QString(" ") + date.toString("hh:mm");
}

QString dateTimeStr(qint64 nTime)
{
    return dateTimeStr(QDateTime::fromSecsSinceEpoch(nTime));
}

QFont fixedPitchFont(bool use_embedded_font)
{
    if (use_embedded_font) {
        return {"Roboto Mono"};
    }
    return QFontDatabase::systemFont(QFontDatabase::FixedFont);
}

// Return a pre-generated dummy bech32m address (P2TR) with invalid checksum.
static std::string DummyAddress(const CChainParams &params)
{
    std::string addr;
    switch (params.GetChainType()) {
    case ChainType::MAIN:
        addr = "bc1p35yvjel7srp783ztf8v6jdra7dhfzk5jaun8xz2qp6ws7z80n4tq2jku9f";
        break;
    case ChainType::SIGNET:
    case ChainType::TESTNET:
        addr = "tb1p35yvjel7srp783ztf8v6jdra7dhfzk5jaun8xz2qp6ws7z80n4tqa6qnlg";
        break;
    case ChainType::REGTEST:
        addr = "bcrt1p35yvjel7srp783ztf8v6jdra7dhfzk5jaun8xz2qp6ws7z80n4tqsr2427";
        break;
    } // no default case, so the compiler can warn about missing cases
    assert(!addr.empty());

    if (Assume(!IsValidDestinationString(addr))) return addr;
    return {};
}

void setupAddressWidget(QValidatedLineEdit *widget, QWidget *parent)
{
    parent->setFocusProxy(widget);

    widget->setFont(fixedPitchFont());
    // We don't want translators to use own addresses in translations
    // and this is the only place, where this address is supplied.
    widget->setPlaceholderText(QObject::tr("Enter a Bitcoin address (e.g. %1)").arg(
        QString::fromStdString(DummyAddress(Params()))));
    widget->setValidator(new BitcoinAddressEntryValidator(parent));
    widget->setCheckValidator(new BitcoinAddressCheckValidator(parent));
}

void AddButtonShortcut(QAbstractButton* button, const QKeySequence& shortcut)
{
    QObject::connect(new QShortcut(shortcut, button), &QShortcut::activated, [button]() { button->animateClick(); });
}

bool parseBitcoinURI(const QUrl &uri, SendCoinsRecipient *out)
{
    // return if URI is not valid or is no bitcoin: URI
    if(!uri.isValid() || uri.scheme() != QString("bitcoin"))
        return false;

    SendCoinsRecipient rv;
    rv.address = uri.path();
    // Trim any following forward slash which may have been added by the OS
    if (rv.address.endsWith("/")) {
        rv.address.truncate(rv.address.length() - 1);
    }
    rv.amount = 0;

    QUrlQuery uriQuery(uri);
    QList<QPair<QString, QString> > items = uriQuery.queryItems();
    for (QList<QPair<QString, QString> >::iterator i = items.begin(); i != items.end(); i++)
    {
        bool fShouldReturnFalse = false;
        if (i->first.startsWith("req-"))
        {
            i->first.remove(0, 4);
            fShouldReturnFalse = true;
        }

        if (i->first == "label")
        {
            rv.label = i->second;
            fShouldReturnFalse = false;
        }
        if (i->first == "message")
        {
            rv.message = i->second;
            fShouldReturnFalse = false;
        }
        else if (i->first == "amount")
        {
            if(!i->second.isEmpty())
            {
                if (!BitcoinUnits::parse(BitcoinUnit::BTC, i->second, &rv.amount)) {
                    return false;
                }
            }
            fShouldReturnFalse = false;
        }

        if (fShouldReturnFalse)
            return false;
    }
    if(out)
    {
        *out = rv;
    }
    return true;
}

bool parseBitcoinURI(QString uri, SendCoinsRecipient *out)
{
    QUrl uriInstance(uri);
    return parseBitcoinURI(uriInstance, out);
}

QString formatBitcoinURI(const SendCoinsRecipient &info)
{
    bool bech_32 = info.address.startsWith(QString::fromStdString(Params().Bech32HRP() + "1"));

    QString ret = QString("bitcoin:%1").arg(bech_32 ? info.address.toUpper() : info.address);
    int paramCount = 0;

    if (info.amount)
    {
        ret += QString("?amount=%1").arg(BitcoinUnits::format(BitcoinUnit::BTC, info.amount, false, BitcoinUnits::SeparatorStyle::NEVER));
        paramCount++;
    }

    if (!info.label.isEmpty())
    {
        QString lbl(QUrl::toPercentEncoding(info.label));
        ret += QString("%1label=%2").arg(paramCount == 0 ? "?" : "&").arg(lbl);
        paramCount++;
    }

    if (!info.message.isEmpty())
    {
        QString msg(QUrl::toPercentEncoding(info.message));
        ret += QString("%1message=%2").arg(paramCount == 0 ? "?" : "&").arg(msg);
        paramCount++;
    }

    return ret;
}

bool isDust(interfaces::Node& node, const QString& address, const CAmount& amount)
{
    CTxDestination dest = DecodeDestination(address.toStdString());
    CScript script = GetScriptForDestination(dest);
    CTxOut txOut(amount, script);
    return IsDust(txOut, node.getDustRelayFee());
}

QString HtmlEscape(const QString& str, bool fMultiLine)
{
    QString escaped = str.toHtmlEscaped();
    if(fMultiLine)
    {
        escaped = escaped.replace("\n", "<br>\n");
    }
    return escaped;
}

QString HtmlEscape(const std::string& str, bool fMultiLine)
{
    return HtmlEscape(QString::fromStdString(str), fMultiLine);
}

void copyEntryData(const QAbstractItemView *view, int column, int role)
{
    if(!view || !view->selectionModel())
        return;
    QModelIndexList selection = view->selectionModel()->selectedRows(column);

    if(!selection.isEmpty())
    {
        // Copy first item
        setClipboard(selection.at(0).data(role).toString());
    }
}

QList<QModelIndex> getEntryData(const QAbstractItemView *view, int column)
{
    if(!view || !view->selectionModel())
        return QList<QModelIndex>();
    return view->selectionModel()->selectedRows(column);
}

bool hasEntryData(const QAbstractItemView *view, int column, int role)
{
    QModelIndexList selection = getEntryData(view, column);
    if (selection.isEmpty()) return false;
    return !selection.at(0).data(role).toString().isEmpty();
}

void LoadFont(const QString& file_name)
{
    const int id = QFontDatabase::addApplicationFont(file_name);
    assert(id != -1);
}

QString getDefaultDataDirectory()
{
    return PathToQString(GetDefaultDataDir());
}

QString ExtractFirstSuffixFromFilter(const QString& filter)
{
    QRegularExpression filter_re(QStringLiteral(".* \\(\\*\\.(.*)[ \\)]"), QRegularExpression::InvertedGreedinessOption);
    QString suffix;
    QRegularExpressionMatch m = filter_re.match(filter);
    if (m.hasMatch()) {
        suffix = m.captured(1);
    }
    return suffix;
}

QString getSaveFileName(QWidget *parent, const QString &caption, const QString &dir,
    const QString &filter,
    QString *selectedSuffixOut)
{
    QString selectedFilter;
    QString myDir;
    if(dir.isEmpty()) // Default to user documents location
    {
        myDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
    }
    else
    {
        myDir = dir;
    }
    /* Directly convert path to native OS path separators */
    QString result = QDir::toNativeSeparators(QFileDialog::getSaveFileName(parent, caption, myDir, filter, &selectedFilter));

    QString selectedSuffix = ExtractFirstSuffixFromFilter(selectedFilter);

    /* Add suffix if needed */
    QFileInfo info(result);
    if(!result.isEmpty())
    {
        if(info.suffix().isEmpty() && !selectedSuffix.isEmpty())
        {
            /* No suffix specified, add selected suffix */
            if(!result.endsWith("."))
                result.append(".");
            result.append(selectedSuffix);
        }
    }

    /* Return selected suffix if asked to */
    if(selectedSuffixOut)
    {
        *selectedSuffixOut = selectedSuffix;
    }
    return result;
}

QString getOpenFileName(QWidget *parent, const QString &caption, const QString &dir,
    const QString &filter,
    QString *selectedSuffixOut)
{
    QString selectedFilter;
    QString myDir;
    if(dir.isEmpty()) // Default to user documents location
    {
        myDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
    }
    else
    {
        myDir = dir;
    }
    /* Directly convert path to native OS path separators */
    QString result = QDir::toNativeSeparators(QFileDialog::getOpenFileName(parent, caption, myDir, filter, &selectedFilter));

    if(selectedSuffixOut)
    {
        *selectedSuffixOut = ExtractFirstSuffixFromFilter(selectedFilter);
        ;
    }
    return result;
}

Qt::ConnectionType blockingGUIThreadConnection()
{
    if(QThread::currentThread() != qApp->thread())
    {
        return Qt::BlockingQueuedConnection;
    }
    else
    {
        return Qt::DirectConnection;
    }
}

bool checkPoint(const QPoint &p, const QWidget *w)
{
    QWidget *atW = QApplication::widgetAt(w->mapToGlobal(p));
    if (!atW) return false;
    return atW->window() == w;
}

bool isObscured(QWidget *w)
{
    return !(checkPoint(QPoint(0, 0), w)
        && checkPoint(QPoint(w->width() - 1, 0), w)
        && checkPoint(QPoint(0, w->height() - 1), w)
        && checkPoint(QPoint(w->width() - 1, w->height() - 1), w)
        && checkPoint(QPoint(w->width() / 2, w->height() / 2), w));
}

void bringToFront(QWidget* w)
{
#ifdef Q_OS_MACOS
    ForceActivation();
#endif

    if (w) {
        // activateWindow() (sometimes) helps with keyboard focus on Windows
        if (w->isMinimized()) {
            w->showNormal();
        } else {
            w->show();
        }
        w->activateWindow();
        w->raise();
    }
}

void handleCloseWindowShortcut(QWidget* w)
{
    QObject::connect(new QShortcut(QKeySequence(QObject::tr("Ctrl+W")), w), &QShortcut::activated, w, &QWidget::close);
}

void openDebugLogfile()
{
    fs::path pathDebug = gArgs.GetDataDirNet() / "debug.log";

    /* Open debug.log with the associated application */
    if (fs::exists(pathDebug))
        QDesktopServices::openUrl(QUrl::fromLocalFile(PathToQString(pathDebug)));
}

bool openBitcoinConf()
{
    fs::path pathConfig = gArgs.GetConfigFilePath();

    /* Create the file */
    std::ofstream configFile{pathConfig, std::ios_base::app};

    if (!configFile.good())
        return false;

    configFile.close();

    /* Open bitcoin.conf with the associated application */
    bool res = QDesktopServices::openUrl(QUrl::fromLocalFile(PathToQString(pathConfig)));
#ifdef Q_OS_MACOS
    // Workaround for macOS-specific behavior; see #15409.
    if (!res) {
        res = QProcess::startDetached("/usr/bin/open", QStringList{"-t", PathToQString(pathConfig)});
    }
#endif

    return res;
}

ToolTipToRichTextFilter::ToolTipToRichTextFilter(int _size_threshold, QObject *parent) :
    QObject(parent),
    size_threshold(_size_threshold)
{

}

bool ToolTipToRichTextFilter::eventFilter(QObject *obj, QEvent *evt)
{
    if(evt->type() == QEvent::ToolTipChange)
    {
        QWidget *widget = static_cast<QWidget*>(obj);
        QString tooltip = widget->toolTip();
        if(tooltip.size() > size_threshold && !tooltip.startsWith("<qt") && !Qt::mightBeRichText(tooltip))
        {
            // Envelop with <qt></qt> to make sure Qt detects this as rich text
            // Escape the current message as HTML and replace \n by <br>
            tooltip = "<qt>" + HtmlEscape(tooltip, true) + "</qt>";
            widget->setToolTip(tooltip);
            return true;
        }
    }
    return QObject::eventFilter(obj, evt);
}

LabelOutOfFocusEventFilter::LabelOutOfFocusEventFilter(QObject* parent)
    : QObject(parent)
{
}

bool LabelOutOfFocusEventFilter::eventFilter(QObject* watched, QEvent* event)
{
    if (event->type() == QEvent::FocusOut) {
        auto focus_out = static_cast<QFocusEvent*>(event);
        if (focus_out->reason() != Qt::PopupFocusReason) {
            auto label = qobject_cast<QLabel*>(watched);
            if (label) {
                auto flags = label->textInteractionFlags();
                label->setTextInteractionFlags(Qt::NoTextInteraction);
                label->setTextInteractionFlags(flags);
            }
        }
    }

    return QObject::eventFilter(watched, event);
}

#ifdef WIN32
fs::path static StartupShortcutPath()
{
    ChainType chain = gArgs.GetChainType();
    if (chain == ChainType::MAIN)
        return GetSpecialFolderPath(CSIDL_STARTUP) / "Bitcoin.lnk";
    if (chain == ChainType::TESTNET) // Remove this special case when testnet CBaseChainParams::DataDir() is incremented to "testnet4"
        return GetSpecialFolderPath(CSIDL_STARTUP) / "Bitcoin (testnet).lnk";
    return GetSpecialFolderPath(CSIDL_STARTUP) / fs::u8path(strprintf("Bitcoin (%s).lnk", ChainTypeToString(chain)));
}

bool GetStartOnSystemStartup()
{
    // check for Bitcoin*.lnk
    return fs::exists(StartupShortcutPath());
}

bool SetStartOnSystemStartup(bool fAutoStart)
{
    // If the shortcut exists already, remove it for updating
    fs::remove(StartupShortcutPath());

    if (fAutoStart)
    {
        CoInitialize(nullptr);

        // Get a pointer to the IShellLink interface.
        IShellLinkW* psl = nullptr;
        HRESULT hres = CoCreateInstance(CLSID_ShellLink, nullptr,
            CLSCTX_INPROC_SERVER, IID_IShellLinkW,
            reinterpret_cast<void**>(&psl));

        if (SUCCEEDED(hres))
        {
            // Get the current executable path
            WCHAR pszExePath[MAX_PATH];
            GetModuleFileNameW(nullptr, pszExePath, ARRAYSIZE(pszExePath));

            // Start client minimized
            QString strArgs = "-min";
            // Set -testnet /-regtest options
            strArgs += QString::fromStdString(strprintf(" -chain=%s", gArgs.GetChainTypeString()));

            // Set the path to the shortcut target
            psl->SetPath(pszExePath);
            PathRemoveFileSpecW(pszExePath);
            psl->SetWorkingDirectory(pszExePath);
            psl->SetShowCmd(SW_SHOWMINNOACTIVE);
            psl->SetArguments(strArgs.toStdWString().c_str());

            // Query IShellLink for the IPersistFile interface for
            // saving the shortcut in persistent storage.
            IPersistFile* ppf = nullptr;
            hres = psl->QueryInterface(IID_IPersistFile, reinterpret_cast<void**>(&ppf));
            if (SUCCEEDED(hres))
            {
                // Save the link by calling IPersistFile::Save.
                hres = ppf->Save(StartupShortcutPath().wstring().c_str(), TRUE);
                ppf->Release();
                psl->Release();
                CoUninitialize();
                return true;
            }
            psl->Release();
        }
        CoUninitialize();
        return false;
    }
    return true;
}
#elif defined(Q_OS_LINUX)

// Follow the Desktop Application Autostart Spec:
// https://specifications.freedesktop.org/autostart-spec/autostart-spec-latest.html

fs::path static GetAutostartDir()
{
    char* pszConfigHome = getenv("XDG_CONFIG_HOME");
    if (pszConfigHome) return fs::path(pszConfigHome) / "autostart";
    char* pszHome = getenv("HOME");
    if (pszHome) return fs::path(pszHome) / ".config" / "autostart";
    return fs::path();
}

fs::path static GetAutostartFilePath()
{
    ChainType chain = gArgs.GetChainType();
    if (chain == ChainType::MAIN)
        return GetAutostartDir() / "bitcoin.desktop";
    return GetAutostartDir() / fs::u8path(strprintf("bitcoin-%s.desktop", ChainTypeToString(chain)));
}

bool GetStartOnSystemStartup()
{
    std::ifstream optionFile{GetAutostartFilePath()};
    if (!optionFile.good())
        return false;
    // Scan through file for "Hidden=true":
    std::string line;
    while (!optionFile.eof())
    {
        getline(optionFile, line);
        if (line.find("Hidden") != std::string::npos &&
            line.find("true") != std::string::npos)
            return false;
    }
    optionFile.close();

    return true;
}

bool SetStartOnSystemStartup(bool fAutoStart)
{
    if (!fAutoStart)
        fs::remove(GetAutostartFilePath());
    else
    {
        char pszExePath[MAX_PATH+1];
        ssize_t r = readlink("/proc/self/exe", pszExePath, sizeof(pszExePath));
        if (r == -1 || r > MAX_PATH) {
            return false;
        }
        pszExePath[r] = '\0';

        fs::create_directories(GetAutostartDir());

        std::ofstream optionFile{GetAutostartFilePath(), std::ios_base::out | std::ios_base::trunc};
        if (!optionFile.good())
            return false;
        ChainType chain = gArgs.GetChainType();
        // Write a bitcoin.desktop file to the autostart directory:
        optionFile << "[Desktop Entry]\n";
        optionFile << "Type=Application\n";
        if (chain == ChainType::MAIN)
            optionFile << "Name=Bitcoin\n";
        else
            optionFile << strprintf("Name=Bitcoin (%s)\n", ChainTypeToString(chain));
        optionFile << "Exec=" << pszExePath << strprintf(" -min -chain=%s\n", ChainTypeToString(chain));
        optionFile << "Terminal=false\n";
        optionFile << "Hidden=false\n";
        optionFile.close();
    }
    return true;
}

#else

bool GetStartOnSystemStartup() { return false; }
bool SetStartOnSystemStartup(bool fAutoStart) { return false; }

#endif

void setClipboard(const QString& str)
{
    QClipboard* clipboard = QApplication::clipboard();
    clipboard->setText(str, QClipboard::Clipboard);
    if (clipboard->supportsSelection()) {
        clipboard->setText(str, QClipboard::Selection);
    }
}

fs::path QStringToPath(const QString &path)
{
    return fs::u8path(path.toStdString());
}

QString PathToQString(const fs::path &path)
{
    return QString::fromStdString(path.utf8string());
}

QString NetworkToQString(Network net)
{
    switch (net) {
    case NET_UNROUTABLE: return QObject::tr("Unroutable");
    //: Name of IPv4 network in peer info
    case NET_IPV4: return QObject::tr("IPv4", "network name");
    //: Name of IPv6 network in peer info
    case NET_IPV6: return QObject::tr("IPv6", "network name");
    //: Name of Tor network in peer info
    case NET_ONION: return QObject::tr("Onion", "network name");
    //: Name of I2P network in peer info
    case NET_I2P: return QObject::tr("I2P", "network name");
    //: Name of CJDNS network in peer info
    case NET_CJDNS: return QObject::tr("CJDNS", "network name");
    case NET_INTERNAL: return "Internal";  // should never actually happen
    case NET_MAX: assert(false);
    } // no default case, so the compiler can warn about missing cases
    assert(false);
}

QString ConnectionTypeToQString(ConnectionType conn_type, bool prepend_direction)
{
    QString prefix;
    if (prepend_direction) {
        prefix = (conn_type == ConnectionType::INBOUND) ?
                     /*: An inbound connection from a peer. An inbound connection
                         is a connection initiated by a peer. */
                     QObject::tr("Inbound") :
                     /*: An outbound connection to a peer. An outbound connection
                         is a connection initiated by us. */
                     QObject::tr("Outbound") + " ";
    }
    switch (conn_type) {
    case ConnectionType::INBOUND: return prefix;
    //: Peer connection type that relays all network information.
    case ConnectionType::OUTBOUND_FULL_RELAY: return prefix + QObject::tr("Full Relay");
    /*: Peer connection type that relays network information about
        blocks and not transactions or addresses. */
    case ConnectionType::BLOCK_RELAY: return prefix + QObject::tr("Block Relay");
    //: Peer connection type established manually through one of several methods.
    case ConnectionType::MANUAL: return prefix + QObject::tr("Manual");
    //: Short-lived peer connection type that tests the aliveness of known addresses.
    case ConnectionType::FEELER: return prefix + QObject::tr("Feeler");
    //: Short-lived peer connection type that solicits known addresses from a peer.
    case ConnectionType::ADDR_FETCH: return prefix + QObject::tr("Address Fetch");
    } // no default case, so the compiler can warn about missing cases
    assert(false);
}

QString formatDurationStr(std::chrono::seconds dur)
{
    const auto d{std::chrono::duration_cast<std::chrono::days>(dur)};
    const auto h{std::chrono::duration_cast<std::chrono::hours>(dur - d)};
    const auto m{std::chrono::duration_cast<std::chrono::minutes>(dur - d - h)};
    const auto s{std::chrono::duration_cast<std::chrono::seconds>(dur - d - h - m)};
    QStringList str_list;
    if (auto d2{d.count()}) str_list.append(QObject::tr("%1 d").arg(d2));
    if (auto h2{h.count()}) str_list.append(QObject::tr("%1 h").arg(h2));
    if (auto m2{m.count()}) str_list.append(QObject::tr("%1 m").arg(m2));
    const auto s2{s.count()};
    if (s2 || str_list.empty()) str_list.append(QObject::tr("%1 s").arg(s2));
    return str_list.join(" ");
}

QString FormatPeerAge(std::chrono::seconds time_connected)
{
    const auto time_now{GetTime<std::chrono::seconds>()};
    const auto age{time_now - time_connected};
    if (age >= 24h) return QObject::tr("%1 d").arg(age / 24h);
    if (age >= 1h) return QObject::tr("%1 h").arg(age / 1h);
    if (age >= 1min) return QObject::tr("%1 m").arg(age / 1min);
    return QObject::tr("%1 s").arg(age / 1s);
}

QString formatServicesStr(quint64 mask)
{
    QStringList strList;

    for (const auto& flag : serviceFlagsToStr(mask)) {
        strList.append(QString::fromStdString(flag));
    }

    if (strList.size())
        return strList.join(", ");
    else
        return QObject::tr("None");
}

QString formatPingTime(std::chrono::microseconds ping_time)
{
    return (ping_time == std::chrono::microseconds::max() || ping_time == 0us) ?
        QObject::tr("N/A") :
        QObject::tr("%1 ms").arg(QString::number((int)(count_microseconds(ping_time) / 1000), 10));
}

QString formatTimeOffset(int64_t time_offset)
{
  return QObject::tr("%1 s").arg(QString::number((int)time_offset, 10));
}

QString formatNiceTimeOffset(qint64 secs)
{
    // Represent time from last generated block in human readable text
    QString timeBehindText;
    const int HOUR_IN_SECONDS = 60*60;
    const int DAY_IN_SECONDS = 24*60*60;
    const int WEEK_IN_SECONDS = 7*24*60*60;
    const int YEAR_IN_SECONDS = 31556952; // Average length of year in Gregorian calendar
    if(secs < 60)
    {
        timeBehindText = QObject::tr("%n second(s)","",secs);
    }
    else if(secs < 2*HOUR_IN_SECONDS)
    {
        timeBehindText = QObject::tr("%n minute(s)","",secs/60);
    }
    else if(secs < 2*DAY_IN_SECONDS)
    {
        timeBehindText = QObject::tr("%n hour(s)","",secs/HOUR_IN_SECONDS);
    }
    else if(secs < 2*WEEK_IN_SECONDS)
    {
        timeBehindText = QObject::tr("%n day(s)","",secs/DAY_IN_SECONDS);
    }
    else if(secs < YEAR_IN_SECONDS)
    {
        timeBehindText = QObject::tr("%n week(s)","",secs/WEEK_IN_SECONDS);
    }
    else
    {
        qint64 years = secs / YEAR_IN_SECONDS;
        qint64 remainder = secs % YEAR_IN_SECONDS;
        timeBehindText = QObject::tr("%1 and %2").arg(QObject::tr("%n year(s)", "", years)).arg(QObject::tr("%n week(s)","", remainder/WEEK_IN_SECONDS));
    }
    return timeBehindText;
}

QString formatBytes(uint64_t bytes)
{
    if (bytes < 1'000)
        return QObject::tr("%1 B").arg(bytes);
    if (bytes < 1'000'000)
        return QObject::tr("%1 kB").arg(bytes / 1'000);
    if (bytes < 1'000'000'000)
        return QObject::tr("%1 MB").arg(bytes / 1'000'000);

    return QObject::tr("%1 GB").arg(bytes / 1'000'000'000);
}

qreal calculateIdealFontSize(int width, const QString& text, QFont font, qreal minPointSize, qreal font_size) {
    while(font_size >= minPointSize) {
        font.setPointSizeF(font_size);
        QFontMetrics fm(font);
        if (TextWidth(fm, text) < width) {
            break;
        }
        font_size -= 0.5;
    }
    return font_size;
}

ThemedLabel::ThemedLabel(const PlatformStyle* platform_style, QWidget* parent)
    : QLabel{parent}, m_platform_style{platform_style}
{
    assert(m_platform_style);
}

void ThemedLabel::setThemedPixmap(const QString& image_filename, int width, int height)
{
    m_image_filename = image_filename;
    m_pixmap_width = width;
    m_pixmap_height = height;
    updateThemedPixmap();
}

void ThemedLabel::changeEvent(QEvent* e)
{
    if (e->type() == QEvent::PaletteChange) {
        updateThemedPixmap();
    }

    QLabel::changeEvent(e);
}

void ThemedLabel::updateThemedPixmap()
{
    setPixmap(m_platform_style->SingleColorIcon(m_image_filename).pixmap(m_pixmap_width, m_pixmap_height));
}

ClickableLabel::ClickableLabel(const PlatformStyle* platform_style, QWidget* parent)
    : ThemedLabel{platform_style, parent}
{
}

void ClickableLabel::mouseReleaseEvent(QMouseEvent *event)
{
    Q_EMIT clicked(event->pos());
}

void ClickableProgressBar::mouseReleaseEvent(QMouseEvent *event)
{
    Q_EMIT clicked(event->pos());
}

bool ItemDelegate::eventFilter(QObject *object, QEvent *event)
{
    if (event->type() == QEvent::KeyPress) {
        if (static_cast<QKeyEvent*>(event)->key() == Qt::Key_Escape) {
            Q_EMIT keyEscapePressed();
        }
    }
    return QItemDelegate::eventFilter(object, event);
}

void PolishProgressDialog(QProgressDialog* dialog)
{
#ifdef Q_OS_MACOS
    // Workaround for macOS-only Qt bug; see: QTBUG-65750, QTBUG-70357.
    const int margin = TextWidth(dialog->fontMetrics(), ("X"));
    dialog->resize(dialog->width() + 2 * margin, dialog->height());
#endif
    // QProgressDialog estimates the time the operation will take (based on time
    // for steps), and only shows itself if that estimate is beyond minimumDuration.
    // The default minimumDuration value is 4 seconds, and it could make users
    // think that the GUI is frozen.
    dialog->setMinimumDuration(0);
}

int TextWidth(const QFontMetrics& fm, const QString& text)
{
    return fm.horizontalAdvance(text);
}

void LogQtInfo()
{
#ifdef QT_STATIC
    const std::string qt_link{"static"};
#else
    const std::string qt_link{"dynamic"};
#endif
#ifdef QT_STATICPLUGIN
    const std::string plugin_link{"static"};
#else
    const std::string plugin_link{"dynamic"};
#endif
    LogPrintf("Qt %s (%s), plugin=%s (%s)\n", qVersion(), qt_link, QGuiApplication::platformName().toStdString(), plugin_link);
    const auto static_plugins = QPluginLoader::staticPlugins();
    if (static_plugins.empty()) {
        LogPrintf("No static plugins.\n");
    } else {
        LogPrintf("Static plugins:\n");
        for (const QStaticPlugin& p : static_plugins) {
            QJsonObject meta_data = p.metaData();
            const std::string plugin_class = meta_data.take(QString("className")).toString().toStdString();
            const int plugin_version = meta_data.take(QString("version")).toInt();
            LogPrintf(" %s, version %d\n", plugin_class, plugin_version);
        }
    }

    LogPrintf("Style: %s / %s\n", QApplication::style()->objectName().toStdString(), QApplication::style()->metaObject()->className());
    LogPrintf("System: %s, %s\n", QSysInfo::prettyProductName().toStdString(), QSysInfo::buildAbi().toStdString());
    for (const QScreen* s : QGuiApplication::screens()) {
        LogPrintf("Screen: %s %dx%d, pixel ratio=%.1f\n", s->name().toStdString(), s->size().width(), s->size().height(), s->devicePixelRatio());
    }
}

void PopupMenu(QMenu* menu, const QPoint& point, QAction* at_action)
{
    // The qminimal plugin does not provide window system integration.
    if (QApplication::platformName() == "minimal") return;
    menu->popup(point, at_action);
}

QDateTime StartOfDay(const QDate& date)
{
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
    return date.startOfDay();
#else
    return QDateTime(date);
#endif
}

bool HasPixmap(const QLabel* label)
{
#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
    return !label->pixmap(Qt::ReturnByValue).isNull();
#else
    return label->pixmap() != nullptr;
#endif
}

QImage GetImage(const QLabel* label)
{
    if (!HasPixmap(label)) {
        return QImage();
    }

#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
    return label->pixmap(Qt::ReturnByValue).toImage();
#else
    return label->pixmap()->toImage();
#endif
}

QString MakeHtmlLink(const QString& source, const QString& link)
{
    return QString(source).replace(
        link,
        QLatin1String("<a href=\"") + link + QLatin1String("\">") + link + QLatin1String("</a>"));
}

void PrintSlotException(
    const std::exception* exception,
    const QObject* sender,
    const QObject* receiver)
{
    std::string description = sender->metaObject()->className();
    description += "->";
    description += receiver->metaObject()->className();
    PrintExceptionContinue(exception, description);
}

void ShowModalDialogAsynchronously(QDialog* dialog)
{
    dialog->setAttribute(Qt::WA_DeleteOnClose);
    dialog->setWindowModality(Qt::ApplicationModal);
    dialog->show();
}

} // namespace GUIUtil