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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.

9,408 bytes · SHA-256 ff92fc38c2e5ad60… · 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 <qt/bitcoinamountfield.h>
6
7#include <qt/bitcoinunits.h>
8#include <qt/guiconstants.h>
9#include <qt/guiutil.h>
10#include <qt/qvaluecombobox.h>
11
12#include <QApplication>
13#include <QAbstractSpinBox>
14#include <QHBoxLayout>
15#include <QKeyEvent>
16#include <QLineEdit>
17#include <QVariant>
18
19#include <cassert>
20
21/** QSpinBox that uses fixed-point numbers internally and uses our own
22 * formatting/parsing functions.
23 */
24class AmountSpinBox: public QAbstractSpinBox
25{
26    Q_OBJECT
27
28public:
29    explicit AmountSpinBox(QWidget *parent):
30        QAbstractSpinBox(parent)
31    {
32        setAlignment(Qt::AlignRight);
33
34        connect(lineEdit(), &QLineEdit::textEdited, this, &AmountSpinBox::valueChanged);
35    }
36
37    QValidator::State validate(QString &text, int &pos) const override
38    {
39        if(text.isEmpty())
40            return QValidator::Intermediate;
41        bool valid = false;
42        parse(text, &valid);
43        /* Make sure we return Intermediate so that fixup() is called on defocus */
44        return valid ? QValidator::Intermediate : QValidator::Invalid;
45    }
46
47    void fixup(QString &input) const override
48    {
49        bool valid;
50        CAmount val;
51
52        if (input.isEmpty() && !m_allow_empty) {
53            valid = true;
54            val = m_min_amount;
55        } else {
56            valid = false;
57            val = parse(input, &valid);
58        }
59
60        if (valid) {
61            val = qBound(m_min_amount, val, m_max_amount);
62            input = BitcoinUnits::format(currentUnit, val, false, BitcoinUnits::SeparatorStyle::ALWAYS);
63            lineEdit()->setText(input);
64        }
65    }
66
67    CAmount value(bool *valid_out=nullptr) const
68    {
69        return parse(text(), valid_out);
70    }
71
72    void setValue(const CAmount& value)
73    {
74        lineEdit()->setText(BitcoinUnits::format(currentUnit, value, false, BitcoinUnits::SeparatorStyle::ALWAYS));
75        Q_EMIT valueChanged();
76    }
77
78    void SetAllowEmpty(bool allow)
79    {
80        m_allow_empty = allow;
81    }
82
83    void SetMinValue(const CAmount& value)
84    {
85        m_min_amount = value;
86    }
87
88    void SetMaxValue(const CAmount& value)
89    {
90        m_max_amount = value;
91    }
92
93    void stepBy(int steps) override
94    {
95        bool valid = false;
96        CAmount val = value(&valid);
97        val = val + steps * singleStep;
98        val = qBound(m_min_amount, val, m_max_amount);
99        setValue(val);
100    }
101
102    void setDisplayUnit(BitcoinUnit unit)
103    {
104        bool valid = false;
105        CAmount val = value(&valid);
106
107        currentUnit = unit;
108        lineEdit()->setPlaceholderText(BitcoinUnits::format(currentUnit, m_min_amount, false, BitcoinUnits::SeparatorStyle::ALWAYS));
109        if(valid)
110            setValue(val);
111        else
112            clear();
113    }
114
115    void setSingleStep(const CAmount& step)
116    {
117        singleStep = step;
118    }
119
120    QSize minimumSizeHint() const override
121    {
122        if(cachedMinimumSizeHint.isEmpty())
123        {
124            ensurePolished();
125
126            const QFontMetrics fm(fontMetrics());
127            int h = lineEdit()->minimumSizeHint().height();
128            int w = GUIUtil::TextWidth(fm, BitcoinUnits::format(BitcoinUnit::BTC, BitcoinUnits::maxMoney(), false, BitcoinUnits::SeparatorStyle::ALWAYS));
129            w += 2; // cursor blinking space
130
131            QStyleOptionSpinBox opt;
132            initStyleOption(&opt);
133            QSize hint(w, h);
134            QSize extra(35, 6);
135            opt.rect.setSize(hint + extra);
136            extra += hint - style()->subControlRect(QStyle::CC_SpinBox, &opt,
137                                                    QStyle::SC_SpinBoxEditField, this).size();
138            // get closer to final result by repeating the calculation
139            opt.rect.setSize(hint + extra);
140            extra += hint - style()->subControlRect(QStyle::CC_SpinBox, &opt,
141                                                    QStyle::SC_SpinBoxEditField, this).size();
142            hint += extra;
143            hint.setHeight(h);
144
145            opt.rect = rect();
146
147            cachedMinimumSizeHint = style()->sizeFromContents(QStyle::CT_SpinBox, &opt, hint, this);
148        }
149        return cachedMinimumSizeHint;
150    }
151
152private:
153    BitcoinUnit currentUnit{BitcoinUnit::BTC};
154    CAmount singleStep{CAmount(100000)}; // satoshis
155    mutable QSize cachedMinimumSizeHint;
156    bool m_allow_empty{true};
157    CAmount m_min_amount{CAmount(0)};
158    CAmount m_max_amount{BitcoinUnits::maxMoney()};
159
160    /**
161     * Parse a string into a number of base monetary units and
162     * return validity.
163     * @note Must return 0 if !valid.
164     */
165    CAmount parse(const QString &text, bool *valid_out=nullptr) const
166    {
167        CAmount val = 0;
168        bool valid = BitcoinUnits::parse(currentUnit, text, &val);
169        if(valid)
170        {
171            if(val < 0 || val > BitcoinUnits::maxMoney())
172                valid = false;
173        }
174        if(valid_out)
175            *valid_out = valid;
176        return valid ? val : 0;
177    }
178
179protected:
180    bool event(QEvent *event) override
181    {
182        if (event->type() == QEvent::KeyPress || event->type() == QEvent::KeyRelease)
183        {
184            QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
185            if (keyEvent->key() == Qt::Key_Comma)
186            {
187                // Translate a comma into a period
188                QKeyEvent periodKeyEvent(event->type(), Qt::Key_Period, keyEvent->modifiers(), ".", keyEvent->isAutoRepeat(), keyEvent->count());
189                return QAbstractSpinBox::event(&periodKeyEvent);
190            }
191        }
192        return QAbstractSpinBox::event(event);
193    }
194
195    StepEnabled stepEnabled() const override
196    {
197        if (isReadOnly()) // Disable steps when AmountSpinBox is read-only
198            return StepNone;
199        if (text().isEmpty()) // Allow step-up with empty field
200            return StepUpEnabled;
201
202        StepEnabled rv = StepNone;
203        bool valid = false;
204        CAmount val = value(&valid);
205        if (valid) {
206            if (val > m_min_amount)
207                rv |= StepDownEnabled;
208            if (val < m_max_amount)
209                rv |= StepUpEnabled;
210        }
211        return rv;
212    }
213
214Q_SIGNALS:
215    void valueChanged();
216};
217
218#include <qt/bitcoinamountfield.moc>
219
220BitcoinAmountField::BitcoinAmountField(QWidget* parent)
221    : QWidget(parent)
222{
223    amount = new AmountSpinBox(this);
224    amount->setLocale(QLocale::c());
225    amount->installEventFilter(this);
226    amount->setMaximumWidth(240);
227
228    QHBoxLayout *layout = new QHBoxLayout(this);
229    layout->addWidget(amount);
230    unit = new QValueComboBox(this);
231    unit->setModel(new BitcoinUnits(this));
232    layout->addWidget(unit);
233    layout->addStretch(1);
234    layout->setContentsMargins(0,0,0,0);
235
236    setLayout(layout);
237
238    setFocusPolicy(Qt::TabFocus);
239    setFocusProxy(amount);
240
241    // If one if the widgets changes, the combined content changes as well
242    connect(amount, &AmountSpinBox::valueChanged, this, &BitcoinAmountField::valueChanged);
243    connect(unit, qOverload<int>(&QComboBox::currentIndexChanged), this, &BitcoinAmountField::unitChanged);
244
245    // Set default based on configuration
246    unitChanged(unit->currentIndex());
247}
248
249void BitcoinAmountField::clear()
250{

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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