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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.

8,214 bytes · SHA-256 e7b939a13c1a215e… · 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/splashscreen.h>
8
9#include <clientversion.h>
10#include <common/license_info.h>
11#include <common/system.h>
12#include <interfaces/handler.h>
13#include <interfaces/node.h>
14#include <interfaces/wallet.h>
15#include <qt/guiutil.h>
16#include <qt/networkstyle.h>
17#include <qt/walletmodel.h>
18#include <util/translation.h>
19
20#include <functional>
21
22#include <QApplication>
23#include <QCloseEvent>
24#include <QPainter>
25#include <QRadialGradient>
26#include <QScreen>
27
28
29SplashScreen::SplashScreen(const NetworkStyle* networkStyle)
30    : QWidget()
31{
32    // set reference point, paddings
33    int paddingRight            = 50;
34    int paddingTop              = 50;
35    int titleVersionVSpace      = 17;
36    int titleCopyrightVSpace    = 40;
37
38    float fontFactor            = 1.0;
39    float devicePixelRatio      = 1.0;
40    devicePixelRatio = static_cast<QGuiApplication*>(QCoreApplication::instance())->devicePixelRatio();
41
42    // define text to place
43    QString titleText       = CLIENT_NAME;
44    QString versionText     = QString("Version %1").arg(QString::fromStdString(FormatFullVersion()));
45    QString copyrightText   = QString::fromUtf8(CopyrightHolders(strprintf("\xc2\xA9 %u-%u ", 2009, COPYRIGHT_YEAR)).c_str());
46    const QString& titleAddText    = networkStyle->getTitleAddText();
47
48    QString font            = QApplication::font().toString();
49
50    // create a bitmap according to device pixelratio
51    QSize splashSize(480*devicePixelRatio,320*devicePixelRatio);
52    pixmap = QPixmap(splashSize);
53
54    // change to HiDPI if it makes sense
55    pixmap.setDevicePixelRatio(devicePixelRatio);
56
57    QPainter pixPaint(&pixmap);
58    pixPaint.setPen(QColor(100,100,100));
59
60    // draw a slightly radial gradient
61    QRadialGradient gradient(QPoint(0,0), splashSize.width()/devicePixelRatio);
62    gradient.setColorAt(0, Qt::white);
63    gradient.setColorAt(1, QColor(247,247,247));
64    QRect rGradient(QPoint(0,0), splashSize);
65    pixPaint.fillRect(rGradient, gradient);
66
67    // draw the bitcoin icon, expected size of PNG: 1024x1024
68    QRect rectIcon(QPoint(-150,-122), QSize(430,430));
69
70    const QSize requiredSize(1024,1024);
71    QPixmap icon(networkStyle->getAppIcon().pixmap(requiredSize));
72
73    pixPaint.drawPixmap(rectIcon, icon);
74
75    // check font size and drawing with
76    pixPaint.setFont(QFont(font, 33*fontFactor));
77    QFontMetrics fm = pixPaint.fontMetrics();
78    int titleTextWidth = GUIUtil::TextWidth(fm, titleText);
79    if (titleTextWidth > 176) {
80        fontFactor = fontFactor * 176 / titleTextWidth;
81    }
82
83    pixPaint.setFont(QFont(font, 33*fontFactor));
84    fm = pixPaint.fontMetrics();
85    titleTextWidth  = GUIUtil::TextWidth(fm, titleText);
86    pixPaint.drawText(pixmap.width()/devicePixelRatio-titleTextWidth-paddingRight,paddingTop,titleText);
87
88    pixPaint.setFont(QFont(font, 15*fontFactor));
89
90    // if the version string is too long, reduce size
91    fm = pixPaint.fontMetrics();
92    int versionTextWidth  = GUIUtil::TextWidth(fm, versionText);
93    if(versionTextWidth > titleTextWidth+paddingRight-10) {
94        pixPaint.setFont(QFont(font, 10*fontFactor));
95        titleVersionVSpace -= 5;
96    }
97    pixPaint.drawText(pixmap.width()/devicePixelRatio-titleTextWidth-paddingRight+2,paddingTop+titleVersionVSpace,versionText);
98
99    // draw copyright stuff
100    {
101        pixPaint.setFont(QFont(font, 10*fontFactor));
102        const int x = pixmap.width()/devicePixelRatio-titleTextWidth-paddingRight;
103        const int y = paddingTop+titleCopyrightVSpace;
104        QRect copyrightRect(x, y, pixmap.width() - x - paddingRight, pixmap.height() - y);
105        pixPaint.drawText(copyrightRect, Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap, copyrightText);
106    }
107
108    // draw additional text if special network
109    if(!titleAddText.isEmpty()) {
110        QFont boldFont = QFont(font, 10*fontFactor);
111        boldFont.setWeight(QFont::Bold);
112        pixPaint.setFont(boldFont);
113        fm = pixPaint.fontMetrics();
114        int titleAddTextWidth  = GUIUtil::TextWidth(fm, titleAddText);
115        pixPaint.drawText(pixmap.width()/devicePixelRatio-titleAddTextWidth-10,15,titleAddText);
116    }
117
118    pixPaint.end();
119
120    // Set window title
121    setWindowTitle(titleText + " " + titleAddText);
122
123    // Resize window and move to center of desktop, disallow resizing
124    QRect r(QPoint(), QSize(pixmap.size().width()/devicePixelRatio,pixmap.size().height()/devicePixelRatio));
125    resize(r.size());
126    setFixedSize(r.size());
127    move(QGuiApplication::primaryScreen()->geometry().center() - r.center());
128
129    installEventFilter(this);
130
131    GUIUtil::handleCloseWindowShortcut(this);
132}
133
134SplashScreen::~SplashScreen()
135{
136    if (m_node) unsubscribeFromCoreSignals();
137}
138
139void SplashScreen::setNode(interfaces::Node& node)
140{
141    assert(!m_node);
142    m_node = &node;
143    subscribeToCoreSignals();
144    if (m_shutdown) m_node->startShutdown();
145}
146
147void SplashScreen::shutdown()
148{
149    m_shutdown = true;
150    if (m_node) m_node->startShutdown();
151}
152
153bool SplashScreen::eventFilter(QObject * obj, QEvent * ev) {
154    if (ev->type() == QEvent::KeyPress) {
155        QKeyEvent *keyEvent = static_cast<QKeyEvent *>(ev);
156        if (keyEvent->key() == Qt::Key_Q) {
157            shutdown();
158        }
159    }
160    return QObject::eventFilter(obj, ev);
161}
162
163static void InitMessage(SplashScreen *splash, const std::string &message)
164{
165    bool invoked = QMetaObject::invokeMethod(splash, "showMessage",
166        Qt::QueuedConnection,
167        Q_ARG(QString, QString::fromStdString(message)),
168        Q_ARG(int, Qt::AlignBottom|Qt::AlignHCenter),
169        Q_ARG(QColor, QColor(55,55,55)));
170    assert(invoked);
171}
172
173static void ShowProgress(SplashScreen *splash, const std::string &title, int nProgress, bool resume_possible)
174{
175    InitMessage(splash, title + std::string("\n") +
176            (resume_possible ? SplashScreen::tr("(press q to shutdown and continue later)").toStdString()
177                                : SplashScreen::tr("press q to shutdown").toStdString()) +
178            strprintf("\n%d", nProgress) + "%");
179}
180
181void SplashScreen::subscribeToCoreSignals()
182{
183    // Connect signals to client
184    m_handler_init_message = m_node->handleInitMessage([this](const std::string& message) {
185        InitMessage(this, message);
186    });
187    m_handler_show_progress = m_node->handleShowProgress([this](const std::string& title, int nProgress, bool resume_possible) {
188        ShowProgress(this, title, nProgress, resume_possible);
189    });
190    m_handler_init_wallet = m_node->handleInitWallet([this]() { handleLoadWallet(); });
191}
192
193void SplashScreen::handleLoadWallet()
194{
195#ifdef ENABLE_WALLET
196    if (!WalletModel::isWalletEnabled()) return;
197    m_handler_load_wallet = m_node->walletLoader().handleLoadWallet([this](std::unique_ptr<interfaces::Wallet> wallet) {
198        m_connected_wallet_handlers.emplace_back(wallet->handleShowProgress([this](const std::string& title, int nProgress) {
199            ShowProgress(this, title, nProgress, /*resume_possible=*/false);
200        }));
201        m_connected_wallets.emplace_back(std::move(wallet));
202    });
203#endif
204}
205
206void SplashScreen::unsubscribeFromCoreSignals()
207{
208    // Disconnect signals from client
209    m_handler_init_message->disconnect();
210    m_handler_show_progress->disconnect();
211    for (const auto& handler : m_connected_wallet_handlers) {
212        handler->disconnect();
213    }
214    m_connected_wallet_handlers.clear();
215    m_connected_wallets.clear();
216}
217
218void SplashScreen::showMessage(const QString &message, int alignment, const QColor &color)
219{
220    curMessage = message;
221    curAlignment = alignment;
222    curColor = color;
223    update();
224}
225
226void SplashScreen::paintEvent(QPaintEvent *event)
227{
228    QPainter painter(this);
229    painter.drawPixmap(0, 0, pixmap);
230    QRect r = rect().adjusted(5, 5, -5, -5);
231    painter.setPen(curColor);
232    painter.drawText(r, curAlignment, curMessage);
233}
234
235void SplashScreen::closeEvent(QCloseEvent *event)
236{
237    shutdown(); // allows an "emergency" shutdown during startup
238    event->ignore();
239}
240

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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