/ src / qt / coincontroldialog.cpp
coincontroldialog.cpp
  1  // Copyright (c) 2011-2022 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/coincontroldialog.h>
  6  #include <qt/forms/ui_coincontroldialog.h>
  7  
  8  #include <qt/addresstablemodel.h>
  9  #include <qt/bitcoinunits.h>
 10  #include <qt/guiutil.h>
 11  #include <qt/optionsmodel.h>
 12  #include <qt/platformstyle.h>
 13  #include <qt/walletmodel.h>
 14  
 15  #include <interfaces/node.h>
 16  #include <key_io.h>
 17  #include <policy/policy.h>
 18  #include <wallet/coincontrol.h>
 19  #include <wallet/coinselection.h>
 20  #include <wallet/wallet.h>
 21  
 22  #include <QApplication>
 23  #include <QCheckBox>
 24  #include <QCursor>
 25  #include <QDialogButtonBox>
 26  #include <QFlags>
 27  #include <QIcon>
 28  #include <QSettings>
 29  #include <QTreeWidget>
 30  
 31  using wallet::CCoinControl;
 32  
 33  QList<CAmount> CoinControlDialog::payAmounts;
 34  bool CoinControlDialog::fSubtractFeeFromAmount = false;
 35  
 36  bool CCoinControlWidgetItem::operator<(const QTreeWidgetItem &other) const {
 37      int column = treeWidget()->sortColumn();
 38      if (column == CoinControlDialog::COLUMN_AMOUNT || column == CoinControlDialog::COLUMN_DATE || column == CoinControlDialog::COLUMN_CONFIRMATIONS)
 39          return data(column, Qt::UserRole).toLongLong() < other.data(column, Qt::UserRole).toLongLong();
 40      return QTreeWidgetItem::operator<(other);
 41  }
 42  
 43  CoinControlDialog::CoinControlDialog(CCoinControl& coin_control, WalletModel* _model, const PlatformStyle *_platformStyle, QWidget *parent) :
 44      QDialog(parent, GUIUtil::dialog_flags),
 45      ui(new Ui::CoinControlDialog),
 46      m_coin_control(coin_control),
 47      model(_model),
 48      platformStyle(_platformStyle)
 49  {
 50      ui->setupUi(this);
 51  
 52      // context menu
 53      contextMenu = new QMenu(this);
 54      contextMenu->addAction(tr("&Copy address"), this, &CoinControlDialog::copyAddress);
 55      contextMenu->addAction(tr("Copy &label"), this, &CoinControlDialog::copyLabel);
 56      contextMenu->addAction(tr("Copy &amount"), this, &CoinControlDialog::copyAmount);
 57      m_copy_transaction_outpoint_action = contextMenu->addAction(tr("Copy transaction &ID and output index"), this, &CoinControlDialog::copyTransactionOutpoint);
 58      contextMenu->addSeparator();
 59      lockAction = contextMenu->addAction(tr("L&ock unspent"), this, &CoinControlDialog::lockCoin);
 60      unlockAction = contextMenu->addAction(tr("&Unlock unspent"), this, &CoinControlDialog::unlockCoin);
 61      connect(ui->treeWidget, &QWidget::customContextMenuRequested, this, &CoinControlDialog::showMenu);
 62  
 63      // clipboard actions
 64      QAction *clipboardQuantityAction = new QAction(tr("Copy quantity"), this);
 65      QAction *clipboardAmountAction = new QAction(tr("Copy amount"), this);
 66      QAction *clipboardFeeAction = new QAction(tr("Copy fee"), this);
 67      QAction *clipboardAfterFeeAction = new QAction(tr("Copy after fee"), this);
 68      QAction *clipboardBytesAction = new QAction(tr("Copy bytes"), this);
 69      QAction *clipboardChangeAction = new QAction(tr("Copy change"), this);
 70  
 71      connect(clipboardQuantityAction, &QAction::triggered, this, &CoinControlDialog::clipboardQuantity);
 72      connect(clipboardAmountAction, &QAction::triggered, this, &CoinControlDialog::clipboardAmount);
 73      connect(clipboardFeeAction, &QAction::triggered, this, &CoinControlDialog::clipboardFee);
 74      connect(clipboardAfterFeeAction, &QAction::triggered, this, &CoinControlDialog::clipboardAfterFee);
 75      connect(clipboardBytesAction, &QAction::triggered, this, &CoinControlDialog::clipboardBytes);
 76      connect(clipboardChangeAction, &QAction::triggered, this, &CoinControlDialog::clipboardChange);
 77  
 78      ui->labelCoinControlQuantity->addAction(clipboardQuantityAction);
 79      ui->labelCoinControlAmount->addAction(clipboardAmountAction);
 80      ui->labelCoinControlFee->addAction(clipboardFeeAction);
 81      ui->labelCoinControlAfterFee->addAction(clipboardAfterFeeAction);
 82      ui->labelCoinControlBytes->addAction(clipboardBytesAction);
 83      ui->labelCoinControlChange->addAction(clipboardChangeAction);
 84  
 85      // toggle tree/list mode
 86      connect(ui->radioTreeMode, &QRadioButton::toggled, this, &CoinControlDialog::radioTreeMode);
 87      connect(ui->radioListMode, &QRadioButton::toggled, this, &CoinControlDialog::radioListMode);
 88  
 89      // click on checkbox
 90      connect(ui->treeWidget, &QTreeWidget::itemChanged, this, &CoinControlDialog::viewItemChanged);
 91  
 92      // click on header
 93      ui->treeWidget->header()->setSectionsClickable(true);
 94      connect(ui->treeWidget->header(), &QHeaderView::sectionClicked, this, &CoinControlDialog::headerSectionClicked);
 95  
 96      // ok button
 97      connect(ui->buttonBox, &QDialogButtonBox::clicked, this, &CoinControlDialog::buttonBoxClicked);
 98  
 99      // (un)select all
100      connect(ui->pushButtonSelectAll, &QPushButton::clicked, this, &CoinControlDialog::buttonSelectAllClicked);
101  
102      ui->treeWidget->setColumnWidth(COLUMN_CHECKBOX, 84);
103      ui->treeWidget->setColumnWidth(COLUMN_AMOUNT, 110);
104      ui->treeWidget->setColumnWidth(COLUMN_LABEL, 190);
105      ui->treeWidget->setColumnWidth(COLUMN_ADDRESS, 320);
106      ui->treeWidget->setColumnWidth(COLUMN_DATE, 130);
107      ui->treeWidget->setColumnWidth(COLUMN_CONFIRMATIONS, 110);
108  
109      // default view is sorted by amount desc
110      sortView(COLUMN_AMOUNT, Qt::DescendingOrder);
111  
112      // restore list mode and sortorder as a convenience feature
113      QSettings settings;
114      if (settings.contains("nCoinControlMode") && !settings.value("nCoinControlMode").toBool())
115          ui->radioTreeMode->click();
116      if (settings.contains("nCoinControlSortColumn") && settings.contains("nCoinControlSortOrder"))
117          sortView(settings.value("nCoinControlSortColumn").toInt(), (static_cast<Qt::SortOrder>(settings.value("nCoinControlSortOrder").toInt())));
118  
119      GUIUtil::handleCloseWindowShortcut(this);
120  
121      if(_model->getOptionsModel() && _model->getAddressTableModel())
122      {
123          updateView();
124          updateLabelLocked();
125          CoinControlDialog::updateLabels(m_coin_control, _model, this);
126      }
127  }
128  
129  CoinControlDialog::~CoinControlDialog()
130  {
131      QSettings settings;
132      settings.setValue("nCoinControlMode", ui->radioListMode->isChecked());
133      settings.setValue("nCoinControlSortColumn", sortColumn);
134      settings.setValue("nCoinControlSortOrder", (int)sortOrder);
135  
136      delete ui;
137  }
138  
139  // ok button
140  void CoinControlDialog::buttonBoxClicked(QAbstractButton* button)
141  {
142      if (ui->buttonBox->buttonRole(button) == QDialogButtonBox::AcceptRole)
143          done(QDialog::Accepted); // closes the dialog
144  }
145  
146  // (un)select all
147  void CoinControlDialog::buttonSelectAllClicked()
148  {
149      Qt::CheckState state = Qt::Checked;
150      for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
151      {
152          if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) != Qt::Unchecked)
153          {
154              state = Qt::Unchecked;
155              break;
156          }
157      }
158      ui->treeWidget->setEnabled(false);
159      for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
160              if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) != state)
161                  ui->treeWidget->topLevelItem(i)->setCheckState(COLUMN_CHECKBOX, state);
162      ui->treeWidget->setEnabled(true);
163      if (state == Qt::Unchecked)
164          m_coin_control.UnSelectAll(); // just to be sure
165      CoinControlDialog::updateLabels(m_coin_control, model, this);
166  }
167  
168  // context menu
169  void CoinControlDialog::showMenu(const QPoint &point)
170  {
171      QTreeWidgetItem *item = ui->treeWidget->itemAt(point);
172      if(item)
173      {
174          contextMenuItem = item;
175  
176          // disable some items (like Copy Transaction ID, lock, unlock) for tree roots in context menu
177          if (item->data(COLUMN_ADDRESS, TxHashRole).toString().length() == 64) // transaction hash is 64 characters (this means it is a child node, so it is not a parent node in tree mode)
178          {
179              m_copy_transaction_outpoint_action->setEnabled(true);
180              if (model->wallet().isLockedCoin(COutPoint(TxidFromString(item->data(COLUMN_ADDRESS, TxHashRole).toString().toStdString()), item->data(COLUMN_ADDRESS, VOutRole).toUInt())))
181              {
182                  lockAction->setEnabled(false);
183                  unlockAction->setEnabled(true);
184              }
185              else
186              {
187                  lockAction->setEnabled(true);
188                  unlockAction->setEnabled(false);
189              }
190          }
191          else // this means click on parent node in tree mode -> disable all
192          {
193              m_copy_transaction_outpoint_action->setEnabled(false);
194              lockAction->setEnabled(false);
195              unlockAction->setEnabled(false);
196          }
197  
198          // show context menu
199          contextMenu->exec(QCursor::pos());
200      }
201  }
202  
203  // context menu action: copy amount
204  void CoinControlDialog::copyAmount()
205  {
206      GUIUtil::setClipboard(BitcoinUnits::removeSpaces(contextMenuItem->text(COLUMN_AMOUNT)));
207  }
208  
209  // context menu action: copy label
210  void CoinControlDialog::copyLabel()
211  {
212      if (ui->radioTreeMode->isChecked() && contextMenuItem->text(COLUMN_LABEL).length() == 0 && contextMenuItem->parent())
213          GUIUtil::setClipboard(contextMenuItem->parent()->text(COLUMN_LABEL));
214      else
215          GUIUtil::setClipboard(contextMenuItem->text(COLUMN_LABEL));
216  }
217  
218  // context menu action: copy address
219  void CoinControlDialog::copyAddress()
220  {
221      if (ui->radioTreeMode->isChecked() && contextMenuItem->text(COLUMN_ADDRESS).length() == 0 && contextMenuItem->parent())
222          GUIUtil::setClipboard(contextMenuItem->parent()->text(COLUMN_ADDRESS));
223      else
224          GUIUtil::setClipboard(contextMenuItem->text(COLUMN_ADDRESS));
225  }
226  
227  // context menu action: copy transaction id and vout index
228  void CoinControlDialog::copyTransactionOutpoint()
229  {
230      const QString address = contextMenuItem->data(COLUMN_ADDRESS, TxHashRole).toString();
231      const QString vout = contextMenuItem->data(COLUMN_ADDRESS, VOutRole).toString();
232      const QString outpoint = QString("%1:%2").arg(address).arg(vout);
233  
234      GUIUtil::setClipboard(outpoint);
235  }
236  
237  // context menu action: lock coin
238  void CoinControlDialog::lockCoin()
239  {
240      if (contextMenuItem->checkState(COLUMN_CHECKBOX) == Qt::Checked)
241          contextMenuItem->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
242  
243      COutPoint outpt(TxidFromString(contextMenuItem->data(COLUMN_ADDRESS, TxHashRole).toString().toStdString()), contextMenuItem->data(COLUMN_ADDRESS, VOutRole).toUInt());
244      model->wallet().lockCoin(outpt, /* write_to_db = */ true);
245      contextMenuItem->setDisabled(true);
246      contextMenuItem->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
247      updateLabelLocked();
248  }
249  
250  // context menu action: unlock coin
251  void CoinControlDialog::unlockCoin()
252  {
253      COutPoint outpt(TxidFromString(contextMenuItem->data(COLUMN_ADDRESS, TxHashRole).toString().toStdString()), contextMenuItem->data(COLUMN_ADDRESS, VOutRole).toUInt());
254      model->wallet().unlockCoin(outpt);
255      contextMenuItem->setDisabled(false);
256      contextMenuItem->setIcon(COLUMN_CHECKBOX, QIcon());
257      updateLabelLocked();
258  }
259  
260  // copy label "Quantity" to clipboard
261  void CoinControlDialog::clipboardQuantity()
262  {
263      GUIUtil::setClipboard(ui->labelCoinControlQuantity->text());
264  }
265  
266  // copy label "Amount" to clipboard
267  void CoinControlDialog::clipboardAmount()
268  {
269      GUIUtil::setClipboard(ui->labelCoinControlAmount->text().left(ui->labelCoinControlAmount->text().indexOf(" ")));
270  }
271  
272  // copy label "Fee" to clipboard
273  void CoinControlDialog::clipboardFee()
274  {
275      GUIUtil::setClipboard(ui->labelCoinControlFee->text().left(ui->labelCoinControlFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
276  }
277  
278  // copy label "After fee" to clipboard
279  void CoinControlDialog::clipboardAfterFee()
280  {
281      GUIUtil::setClipboard(ui->labelCoinControlAfterFee->text().left(ui->labelCoinControlAfterFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
282  }
283  
284  // copy label "Bytes" to clipboard
285  void CoinControlDialog::clipboardBytes()
286  {
287      GUIUtil::setClipboard(ui->labelCoinControlBytes->text().replace(ASYMP_UTF8, ""));
288  }
289  
290  // copy label "Change" to clipboard
291  void CoinControlDialog::clipboardChange()
292  {
293      GUIUtil::setClipboard(ui->labelCoinControlChange->text().left(ui->labelCoinControlChange->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
294  }
295  
296  // treeview: sort
297  void CoinControlDialog::sortView(int column, Qt::SortOrder order)
298  {
299      sortColumn = column;
300      sortOrder = order;
301      ui->treeWidget->sortItems(column, order);
302      ui->treeWidget->header()->setSortIndicator(sortColumn, sortOrder);
303  }
304  
305  // treeview: clicked on header
306  void CoinControlDialog::headerSectionClicked(int logicalIndex)
307  {
308      if (logicalIndex == COLUMN_CHECKBOX) // click on most left column -> do nothing
309      {
310          ui->treeWidget->header()->setSortIndicator(sortColumn, sortOrder);
311      }
312      else
313      {
314          if (sortColumn == logicalIndex)
315              sortOrder = ((sortOrder == Qt::AscendingOrder) ? Qt::DescendingOrder : Qt::AscendingOrder);
316          else
317          {
318              sortColumn = logicalIndex;
319              sortOrder = ((sortColumn == COLUMN_LABEL || sortColumn == COLUMN_ADDRESS) ? Qt::AscendingOrder : Qt::DescendingOrder); // if label or address then default => asc, else default => desc
320          }
321  
322          sortView(sortColumn, sortOrder);
323      }
324  }
325  
326  // toggle tree mode
327  void CoinControlDialog::radioTreeMode(bool checked)
328  {
329      if (checked && model)
330          updateView();
331  }
332  
333  // toggle list mode
334  void CoinControlDialog::radioListMode(bool checked)
335  {
336      if (checked && model)
337          updateView();
338  }
339  
340  // checkbox clicked by user
341  void CoinControlDialog::viewItemChanged(QTreeWidgetItem* item, int column)
342  {
343      if (column == COLUMN_CHECKBOX && item->data(COLUMN_ADDRESS, TxHashRole).toString().length() == 64) // transaction hash is 64 characters (this means it is a child node, so it is not a parent node in tree mode)
344      {
345          COutPoint outpt(TxidFromString(item->data(COLUMN_ADDRESS, TxHashRole).toString().toStdString()), item->data(COLUMN_ADDRESS, VOutRole).toUInt());
346  
347          if (item->checkState(COLUMN_CHECKBOX) == Qt::Unchecked)
348              m_coin_control.UnSelect(outpt);
349          else if (item->isDisabled()) // locked (this happens if "check all" through parent node)
350              item->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
351          else
352              m_coin_control.Select(outpt);
353  
354          // selection changed -> update labels
355          if (ui->treeWidget->isEnabled()) // do not update on every click for (un)select all
356              CoinControlDialog::updateLabels(m_coin_control, model, this);
357      }
358  }
359  
360  // shows count of locked unspent outputs
361  void CoinControlDialog::updateLabelLocked()
362  {
363      std::vector<COutPoint> vOutpts;
364      model->wallet().listLockedCoins(vOutpts);
365      if (vOutpts.size() > 0)
366      {
367         ui->labelLocked->setText(tr("(%1 locked)").arg(vOutpts.size()));
368         ui->labelLocked->setVisible(true);
369      }
370      else ui->labelLocked->setVisible(false);
371  }
372  
373  void CoinControlDialog::updateLabels(CCoinControl& m_coin_control, WalletModel *model, QDialog* dialog)
374  {
375      if (!model)
376          return;
377  
378      // nPayAmount
379      CAmount nPayAmount = 0;
380      for (const CAmount &amount : CoinControlDialog::payAmounts) {
381          nPayAmount += amount;
382      }
383  
384      CAmount nAmount             = 0;
385      CAmount nPayFee             = 0;
386      CAmount nAfterFee           = 0;
387      CAmount nChange             = 0;
388      unsigned int nBytes         = 0;
389      unsigned int nBytesInputs   = 0;
390      unsigned int nQuantity      = 0;
391      bool fWitness               = false;
392  
393      auto vCoinControl{m_coin_control.ListSelected()};
394  
395      size_t i = 0;
396      for (const auto& out : model->wallet().getCoins(vCoinControl)) {
397          if (out.depth_in_main_chain < 0) continue;
398  
399          // unselect already spent, very unlikely scenario, this could happen
400          // when selected are spent elsewhere, like rpc or another computer
401          const COutPoint& outpt = vCoinControl[i++];
402          if (out.is_spent)
403          {
404              m_coin_control.UnSelect(outpt);
405              continue;
406          }
407  
408          // Quantity
409          nQuantity++;
410  
411          // Amount
412          nAmount += out.txout.nValue;
413  
414          // Bytes
415          CTxDestination address;
416          int witnessversion = 0;
417          std::vector<unsigned char> witnessprogram;
418          if (out.txout.scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram))
419          {
420              // add input skeleton bytes (outpoint, scriptSig size, nSequence)
421              nBytesInputs += (32 + 4 + 1 + 4);
422  
423              if (witnessversion == 0) { // P2WPKH
424                  // 1 WU (witness item count) + 72 WU (ECDSA signature with len byte) + 34 WU (pubkey with len byte)
425                  nBytesInputs += 107 / WITNESS_SCALE_FACTOR;
426              } else if (witnessversion == 1) { // P2TR key-path spend
427                  // 1 WU (witness item count) + 65 WU (Schnorr signature with len byte)
428                  nBytesInputs += 66 / WITNESS_SCALE_FACTOR;
429              } else {
430                  // not supported, should be unreachable
431                  throw std::runtime_error("Trying to spend future segwit version script");
432              }
433              fWitness = true;
434          }
435          else if(ExtractDestination(out.txout.scriptPubKey, address))
436          {
437              CPubKey pubkey;
438              PKHash* pkhash = std::get_if<PKHash>(&address);
439              if (pkhash && model->wallet().getPubKey(out.txout.scriptPubKey, ToKeyID(*pkhash), pubkey))
440              {
441                  nBytesInputs += (pubkey.IsCompressed() ? 148 : 180);
442              }
443              else
444                  nBytesInputs += 148; // in all error cases, simply assume 148 here
445          }
446          else nBytesInputs += 148;
447      }
448  
449      // calculation
450      if (nQuantity > 0)
451      {
452          // Bytes
453          nBytes = nBytesInputs + ((CoinControlDialog::payAmounts.size() > 0 ? CoinControlDialog::payAmounts.size() + 1 : 2) * 34) + 10; // always assume +1 output for change here
454          if (fWitness)
455          {
456              // there is some fudging in these numbers related to the actual virtual transaction size calculation that will keep this estimate from being exact.
457              // usually, the result will be an overestimate within a couple of satoshis so that the confirmation dialog ends up displaying a slightly smaller fee.
458              // also, the witness stack size value is a variable sized integer. usually, the number of stack items will be well under the single byte var int limit.
459              nBytes += 2; // account for the serialized marker and flag bytes
460              nBytes += nQuantity; // account for the witness byte that holds the number of stack items for each input.
461          }
462  
463          // in the subtract fee from amount case, we can tell if zero change already and subtract the bytes, so that fee calculation afterwards is accurate
464          if (CoinControlDialog::fSubtractFeeFromAmount)
465              if (nAmount - nPayAmount == 0)
466                  nBytes -= 34;
467  
468          // Fee
469          nPayFee = model->wallet().getMinimumFee(nBytes, m_coin_control, /*returned_target=*/nullptr, /*reason=*/nullptr);
470  
471          if (nPayAmount > 0)
472          {
473              nChange = nAmount - nPayAmount;
474              if (!CoinControlDialog::fSubtractFeeFromAmount)
475                  nChange -= nPayFee;
476  
477              if (nChange > 0) {
478                  // Assumes a p2pkh script size
479                  CTxOut txout(nChange, CScript() << std::vector<unsigned char>(24, 0));
480                  // Never create dust outputs; if we would, just add the dust to the fee.
481                  if (IsDust(txout, model->node().getDustRelayFee()))
482                  {
483                      nPayFee += nChange;
484                      nChange = 0;
485                      if (CoinControlDialog::fSubtractFeeFromAmount)
486                          nBytes -= 34; // we didn't detect lack of change above
487                  }
488              }
489  
490              if (nChange == 0 && !CoinControlDialog::fSubtractFeeFromAmount)
491                  nBytes -= 34;
492          }
493  
494          // after fee
495          nAfterFee = std::max<CAmount>(nAmount - nPayFee, 0);
496      }
497  
498      // actually update labels
499      BitcoinUnit nDisplayUnit = BitcoinUnit::BTC;
500      if (model && model->getOptionsModel())
501          nDisplayUnit = model->getOptionsModel()->getDisplayUnit();
502  
503      QLabel *l1 = dialog->findChild<QLabel *>("labelCoinControlQuantity");
504      QLabel *l2 = dialog->findChild<QLabel *>("labelCoinControlAmount");
505      QLabel *l3 = dialog->findChild<QLabel *>("labelCoinControlFee");
506      QLabel *l4 = dialog->findChild<QLabel *>("labelCoinControlAfterFee");
507      QLabel *l5 = dialog->findChild<QLabel *>("labelCoinControlBytes");
508      QLabel *l8 = dialog->findChild<QLabel *>("labelCoinControlChange");
509  
510      // enable/disable "change"
511      dialog->findChild<QLabel *>("labelCoinControlChangeText")   ->setEnabled(nPayAmount > 0);
512      dialog->findChild<QLabel *>("labelCoinControlChange")       ->setEnabled(nPayAmount > 0);
513  
514      // stats
515      l1->setText(QString::number(nQuantity));                                 // Quantity
516      l2->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nAmount));        // Amount
517      l3->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nPayFee));        // Fee
518      l4->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nAfterFee));      // After Fee
519      l5->setText(((nBytes > 0) ? ASYMP_UTF8 : "") + QString::number(nBytes));        // Bytes
520      l8->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nChange));        // Change
521      if (nPayFee > 0)
522      {
523          l3->setText(ASYMP_UTF8 + l3->text());
524          l4->setText(ASYMP_UTF8 + l4->text());
525          if (nChange > 0 && !CoinControlDialog::fSubtractFeeFromAmount)
526              l8->setText(ASYMP_UTF8 + l8->text());
527      }
528  
529      // how many satoshis the estimated fee can vary per byte we guess wrong
530      double dFeeVary = (nBytes != 0) ? (double)nPayFee / nBytes : 0;
531  
532      QString toolTip4 = tr("Can vary +/- %1 satoshi(s) per input.").arg(dFeeVary);
533  
534      l3->setToolTip(toolTip4);
535      l4->setToolTip(toolTip4);
536      l8->setToolTip(toolTip4);
537      dialog->findChild<QLabel *>("labelCoinControlFeeText")      ->setToolTip(l3->toolTip());
538      dialog->findChild<QLabel *>("labelCoinControlAfterFeeText") ->setToolTip(l4->toolTip());
539      dialog->findChild<QLabel *>("labelCoinControlBytesText")    ->setToolTip(l5->toolTip());
540      dialog->findChild<QLabel *>("labelCoinControlChangeText")   ->setToolTip(l8->toolTip());
541  
542      // Insufficient funds
543      QLabel *label = dialog->findChild<QLabel *>("labelCoinControlInsuffFunds");
544      if (label)
545          label->setVisible(nChange < 0);
546  }
547  
548  void CoinControlDialog::changeEvent(QEvent* e)
549  {
550      if (e->type() == QEvent::PaletteChange) {
551          updateView();
552      }
553  
554      QDialog::changeEvent(e);
555  }
556  
557  void CoinControlDialog::updateView()
558  {
559      if (!model || !model->getOptionsModel() || !model->getAddressTableModel())
560          return;
561  
562      bool treeMode = ui->radioTreeMode->isChecked();
563  
564      ui->treeWidget->clear();
565      ui->treeWidget->setEnabled(false); // performance, otherwise updateLabels would be called for every checked checkbox
566      ui->treeWidget->setAlternatingRowColors(!treeMode);
567      QFlags<Qt::ItemFlag> flgCheckbox = Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable;
568      QFlags<Qt::ItemFlag> flgTristate = Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable | Qt::ItemIsAutoTristate;
569  
570      BitcoinUnit nDisplayUnit = model->getOptionsModel()->getDisplayUnit();
571  
572      for (const auto& coins : model->wallet().listCoins()) {
573          CCoinControlWidgetItem* itemWalletAddress{nullptr};
574          QString sWalletAddress = QString::fromStdString(EncodeDestination(coins.first));
575          QString sWalletLabel = model->getAddressTableModel()->labelForAddress(sWalletAddress);
576          if (sWalletLabel.isEmpty())
577              sWalletLabel = tr("(no label)");
578  
579          if (treeMode)
580          {
581              // wallet address
582              itemWalletAddress = new CCoinControlWidgetItem(ui->treeWidget);
583  
584              itemWalletAddress->setFlags(flgTristate);
585              itemWalletAddress->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
586  
587              // label
588              itemWalletAddress->setText(COLUMN_LABEL, sWalletLabel);
589  
590              // address
591              itemWalletAddress->setText(COLUMN_ADDRESS, sWalletAddress);
592          }
593  
594          CAmount nSum = 0;
595          int nChildren = 0;
596          for (const auto& outpair : coins.second) {
597              const COutPoint& output = std::get<0>(outpair);
598              const interfaces::WalletTxOut& out = std::get<1>(outpair);
599              nSum += out.txout.nValue;
600              nChildren++;
601  
602              CCoinControlWidgetItem *itemOutput;
603              if (treeMode)    itemOutput = new CCoinControlWidgetItem(itemWalletAddress);
604              else             itemOutput = new CCoinControlWidgetItem(ui->treeWidget);
605              itemOutput->setFlags(flgCheckbox);
606              itemOutput->setCheckState(COLUMN_CHECKBOX,Qt::Unchecked);
607  
608              // address
609              CTxDestination outputAddress;
610              QString sAddress = "";
611              if(ExtractDestination(out.txout.scriptPubKey, outputAddress))
612              {
613                  sAddress = QString::fromStdString(EncodeDestination(outputAddress));
614  
615                  // if listMode or change => show bitcoin address. In tree mode, address is not shown again for direct wallet address outputs
616                  if (!treeMode || (!(sAddress == sWalletAddress)))
617                      itemOutput->setText(COLUMN_ADDRESS, sAddress);
618              }
619  
620              // label
621              if (!(sAddress == sWalletAddress)) // change
622              {
623                  // tooltip from where the change comes from
624                  itemOutput->setToolTip(COLUMN_LABEL, tr("change from %1 (%2)").arg(sWalletLabel).arg(sWalletAddress));
625                  itemOutput->setText(COLUMN_LABEL, tr("(change)"));
626              }
627              else if (!treeMode)
628              {
629                  QString sLabel = model->getAddressTableModel()->labelForAddress(sAddress);
630                  if (sLabel.isEmpty())
631                      sLabel = tr("(no label)");
632                  itemOutput->setText(COLUMN_LABEL, sLabel);
633              }
634  
635              // amount
636              itemOutput->setText(COLUMN_AMOUNT, BitcoinUnits::format(nDisplayUnit, out.txout.nValue));
637              itemOutput->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)out.txout.nValue)); // padding so that sorting works correctly
638  
639              // date
640              itemOutput->setText(COLUMN_DATE, GUIUtil::dateTimeStr(out.time));
641              itemOutput->setData(COLUMN_DATE, Qt::UserRole, QVariant((qlonglong)out.time));
642  
643              // confirmations
644              itemOutput->setText(COLUMN_CONFIRMATIONS, QString::number(out.depth_in_main_chain));
645              itemOutput->setData(COLUMN_CONFIRMATIONS, Qt::UserRole, QVariant((qlonglong)out.depth_in_main_chain));
646  
647              // transaction hash
648              itemOutput->setData(COLUMN_ADDRESS, TxHashRole, QString::fromStdString(output.hash.GetHex()));
649  
650              // vout index
651              itemOutput->setData(COLUMN_ADDRESS, VOutRole, output.n);
652  
653               // disable locked coins
654              if (model->wallet().isLockedCoin(output))
655              {
656                  m_coin_control.UnSelect(output); // just to be sure
657                  itemOutput->setDisabled(true);
658                  itemOutput->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
659              }
660  
661              // set checkbox
662              if (m_coin_control.IsSelected(output))
663                  itemOutput->setCheckState(COLUMN_CHECKBOX, Qt::Checked);
664          }
665  
666          // amount
667          if (treeMode)
668          {
669              itemWalletAddress->setText(COLUMN_CHECKBOX, "(" + QString::number(nChildren) + ")");
670              itemWalletAddress->setText(COLUMN_AMOUNT, BitcoinUnits::format(nDisplayUnit, nSum));
671              itemWalletAddress->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)nSum));
672          }
673      }
674  
675      // expand all partially selected
676      if (treeMode)
677      {
678          for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
679              if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) == Qt::PartiallyChecked)
680                  ui->treeWidget->topLevelItem(i)->setExpanded(true);
681      }
682  
683      // sort view
684      sortView(sortColumn, sortOrder);
685      ui->treeWidget->setEnabled(true);
686  }