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Inside Bitcoin

The code behind the network, with room to understand it.

Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

19,930 bytes · SHA-256 4d8af7904c7363d3… · View upstream ↗

1// Copyright (c) 2011-present 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#include <bitcoin-build-config.h> // IWYU pragma: keep
6
7#include <qt/optionsdialog.h>
8#include <qt/forms/ui_optionsdialog.h>
9
10#include <qt/bitcoinunits.h>
11#include <qt/clientmodel.h>
12#include <qt/guiconstants.h>
13#include <qt/guiutil.h>
14#include <qt/optionsmodel.h>
15
16#include <common/system.h>
17#include <interfaces/node.h>
18#include <netbase.h>
19#include <node/caches.h>
20#include <node/chainstatemanager_args.h>
21#include <util/strencodings.h>
22
23#include <chrono>
24
25#include <QApplication>
26#include <QDataWidgetMapper>
27#include <QDir>
28#include <QFontDialog>
29#include <QIntValidator>
30#include <QLocale>
31#include <QMessageBox>
32#include <QSystemTrayIcon>
33#include <QTimer>
34
35int setFontChoice(QComboBox* cb, const OptionsModel::FontChoice& fc)
36{
37    int i;
38    for (i = cb->count(); --i >= 0; ) {
39        QVariant item_data = cb->itemData(i);
40        if (!item_data.canConvert<OptionsModel::FontChoice>()) continue;
41        if (item_data.value<OptionsModel::FontChoice>() == fc) {
42            break;
43        }
44    }
45    if (i == -1) {
46        // New item needed
47        QFont chosen_font = OptionsModel::getFontForChoice(fc);
48        QSignalBlocker block_currentindexchanged_signal(cb);  // avoid triggering QFontDialog
49        cb->insertItem(0, QFontInfo(chosen_font).family(), QVariant::fromValue(fc));
50        i = 0;
51    }
52
53    cb->setCurrentIndex(i);
54    return i;
55}
56
57void setupFontOptions(QComboBox* cb, QLabel* preview)
58{
59    QFont embedded_font{GUIUtil::fixedPitchFont(true)};
60    QFont system_font{GUIUtil::fixedPitchFont(false)};
61    cb->addItem(QObject::tr("Embedded \"%1\"").arg(QFontInfo(embedded_font).family()), QVariant::fromValue(OptionsModel::FontChoice{OptionsModel::FontChoiceAbstract::EmbeddedFont}));
62    cb->addItem(QObject::tr("Default system font \"%1\"").arg(QFontInfo(system_font).family()), QVariant::fromValue(OptionsModel::FontChoice{OptionsModel::FontChoiceAbstract::BestSystemFont}));
63    cb->addItem(QObject::tr("Custom…"));
64
65    const auto& on_font_choice_changed = [cb, preview](int index) {
66        static int previous_index = -1;
67        QVariant item_data = cb->itemData(index);
68        QFont f;
69        if (item_data.canConvert<OptionsModel::FontChoice>()) {
70            f = OptionsModel::getFontForChoice(item_data.value<OptionsModel::FontChoice>());
71        } else {
72            bool ok;
73            f = QFontDialog::getFont(&ok, GUIUtil::fixedPitchFont(false), cb->parentWidget());
74            if (!ok) {
75                cb->setCurrentIndex(previous_index);
76                return;
77            }
78            index = setFontChoice(cb, OptionsModel::FontChoice{f});
79        }
80        if (preview) {
81            preview->setFont(f);
82        }
83        previous_index = index;
84    };
85    QObject::connect(cb, QOverload<int>::of(&QComboBox::currentIndexChanged), on_font_choice_changed);
86    on_font_choice_changed(cb->currentIndex());
87}
88
89OptionsDialog::OptionsDialog(QWidget* parent, bool enableWallet)
90    : QDialog(parent, GUIUtil::dialog_flags | Qt::WindowMaximizeButtonHint),
91      ui(new Ui::OptionsDialog)
92{
93    ui->setupUi(this);
94
95    ui->verticalLayout->setStretchFactor(ui->tabWidget, 1);
96
97    /* Main elements init */
98    ui->databaseCache->setRange(MIN_DBCACHE_BYTES / 1_MiB, std::numeric_limits<int>::max());
99    ui->threadsScriptVerif->setMinimum(-GetNumCores());
100    ui->threadsScriptVerif->setMaximum(MAX_SCRIPTCHECK_THREADS);
101    ui->pruneWarning->setVisible(false);
102    ui->pruneWarning->setStyleSheet("QLabel { color: red; }");
103
104    ui->pruneSize->setEnabled(false);
105    connect(ui->prune, &QPushButton::toggled, ui->pruneSize, &QWidget::setEnabled);
106
107    /* Network elements init */
108    ui->proxyIp->setEnabled(false);
109    ui->proxyPort->setEnabled(false);
110    ui->proxyPort->setValidator(new QIntValidator(1, 65535, this));
111
112    ui->proxyIpTor->setEnabled(false);
113    ui->proxyPortTor->setEnabled(false);
114    ui->proxyPortTor->setValidator(new QIntValidator(1, 65535, this));
115
116    connect(ui->connectSocks, &QPushButton::toggled, ui->proxyIp, &QWidget::setEnabled);
117    connect(ui->connectSocks, &QPushButton::toggled, ui->proxyPort, &QWidget::setEnabled);
118    connect(ui->connectSocks, &QPushButton::toggled, this, &OptionsDialog::updateProxyValidationState);
119
120    connect(ui->connectSocksTor, &QPushButton::toggled, ui->proxyIpTor, &QWidget::setEnabled);
121    connect(ui->connectSocksTor, &QPushButton::toggled, ui->proxyPortTor, &QWidget::setEnabled);
122    connect(ui->connectSocksTor, &QPushButton::toggled, this, &OptionsDialog::updateProxyValidationState);
123
124    /* Window elements init */
125#ifdef Q_OS_MACOS
126    /* remove Window tab on Mac */
127    ui->tabWidget->removeTab(ui->tabWidget->indexOf(ui->tabWindow));
128    /* hide launch at startup option on macOS */
129    ui->bitcoinAtStartup->setVisible(false);
130    ui->verticalLayout_Main->removeWidget(ui->bitcoinAtStartup);
131    ui->verticalLayout_Main->removeItem(ui->horizontalSpacer_0_Main);
132#endif
133
134    /* remove Wallet tab and 3rd party-URL textbox in case of -disablewallet */
135    if (!enableWallet) {
136        ui->tabWidget->removeTab(ui->tabWidget->indexOf(ui->tabWallet));
137        ui->thirdPartyTxUrlsLabel->setVisible(false);
138        ui->thirdPartyTxUrls->setVisible(false);
139    }
140
141#ifdef ENABLE_EXTERNAL_SIGNER
142    ui->externalSignerPath->setToolTip(ui->externalSignerPath->toolTip().arg(CLIENT_NAME));
143#else
144    //: "External signing" means using devices such as hardware wallets.
145    ui->externalSignerPath->setToolTip(tr("Compiled without external signing support (required for external signing)"));
146    ui->externalSignerPath->setEnabled(false);
147#endif
148    /* Display elements init */
149    QDir translations(":translations");
150
151    ui->bitcoinAtStartup->setToolTip(ui->bitcoinAtStartup->toolTip().arg(CLIENT_NAME));
152    ui->bitcoinAtStartup->setText(ui->bitcoinAtStartup->text().arg(CLIENT_NAME));
153
154    ui->openBitcoinConfButton->setToolTip(ui->openBitcoinConfButton->toolTip().arg(CLIENT_NAME));
155
156    ui->lang->setToolTip(ui->lang->toolTip().arg(CLIENT_NAME));
157    ui->lang->addItem(QString("(") + tr("default") + QString(")"), QVariant(""));
158    for (const QString &langStr : translations.entryList())
159    {
160        QLocale locale(langStr);
161
162        /** check if the locale name consists of 2 parts (language_country) */
163        if(langStr.contains("_"))
164        {
165            /** display language strings as "native language - native country/territory (locale name)", e.g. "Deutsch - Deutschland (de)" */
166            ui->lang->addItem(locale.nativeLanguageName() + QString(" - ") +
167                              locale.nativeTerritoryName() +
168                              QString(" (") + langStr + QString(")"), QVariant(langStr));
169
170        }
171        else
172        {
173            /** display language strings as "native language (locale name)", e.g. "Deutsch (de)" */
174            ui->lang->addItem(locale.nativeLanguageName() + QString(" (") + langStr + QString(")"), QVariant(langStr));
175        }
176    }
177    ui->unit->setModel(new BitcoinUnits(this));
178
179    /* Widget-to-option mapper */
180    mapper = new QDataWidgetMapper(this);
181    mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);
182    mapper->setOrientation(Qt::Vertical);
183
184    GUIUtil::ItemDelegate* delegate = new GUIUtil::ItemDelegate(mapper);
185    connect(delegate, &GUIUtil::ItemDelegate::keyEscapePressed, this, &OptionsDialog::reject);
186    mapper->setItemDelegate(delegate);
187
188    /* setup/change UI elements when proxy IPs are invalid/valid */
189    ui->proxyIp->setCheckValidator(new ProxyAddressValidator(parent));
190    ui->proxyIpTor->setCheckValidator(new ProxyAddressValidator(parent));
191    connect(ui->proxyIp, &QValidatedLineEdit::validationDidChange, this, &OptionsDialog::updateProxyValidationState);
192    connect(ui->proxyIpTor, &QValidatedLineEdit::validationDidChange, this, &OptionsDialog::updateProxyValidationState);
193    connect(ui->proxyPort, &QLineEdit::textChanged, this, &OptionsDialog::updateProxyValidationState);
194    connect(ui->proxyPortTor, &QLineEdit::textChanged, this, &OptionsDialog::updateProxyValidationState);
195
196    if (!QSystemTrayIcon::isSystemTrayAvailable()) {
197        ui->showTrayIcon->setChecked(false);
198        ui->showTrayIcon->setEnabled(false);
199        ui->minimizeToTray->setChecked(false);
200        ui->minimizeToTray->setEnabled(false);
201    }
202
203    setupFontOptions(ui->moneyFont, ui->moneyFont_preview);
204
205    GUIUtil::handleCloseWindowShortcut(this);
206}
207
208OptionsDialog::~OptionsDialog()
209{
210    delete ui;
211}
212
213void OptionsDialog::setClientModel(ClientModel* client_model)
214{
215    m_client_model = client_model;
216}
217
218void OptionsDialog::setModel(OptionsModel *_model)
219{
220    this->model = _model;
221
222    if(_model)
223    {
224        /* check if client restart is needed and show persistent message */
225        if (_model->isRestartRequired())
226            showRestartWarning(true);
227
228        // Prune values are in GB to be consistent with intro.cpp
229        static constexpr uint64_t nMinDiskSpace = (MIN_DISK_SPACE_FOR_BLOCK_FILES / GB_BYTES) + (MIN_DISK_SPACE_FOR_BLOCK_FILES % GB_BYTES) ? 1 : 0;
230        ui->pruneSize->setRange(nMinDiskSpace, std::numeric_limits<int>::max());
231
232        QString strLabel = _model->getOverriddenByCommandLine();
233        if (strLabel.isEmpty())
234            strLabel = tr("none");
235        ui->overriddenByCommandLineLabel->setText(strLabel);
236
237        mapper->setModel(_model);
238        setMapper();
239        mapper->toFirst();
240
241        const auto& font_for_money = _model->data(_model->index(OptionsModel::FontForMoney, 0), Qt::EditRole).value<OptionsModel::FontChoice>();
242        setFontChoice(ui->moneyFont, font_for_money);
243
244        updateDefaultProxyNets();
245    }
246
247    /* warn when one of the following settings changes by user action (placed here so init via mapper doesn't trigger them) */
248
249    /* Main */
250    connect(ui->prune, &QCheckBox::clicked, this, &OptionsDialog::showRestartWarning);

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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