text: // Copyright (c) 2011-2020 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #if defined(HAVE_CONFIG_H)
  #include <config/bitcoin-config.h>
  #endif
  
  #include <qt/coincontroldialog.h>
  #include <qt/forms/ui_coincontroldialog.h>
  
  #include <qt/addresstablemodel.h>
  #include <qt/bitcoinunits.h>
  #include <qt/guiutil.h>
  #include <qt/optionsmodel.h>
  #include <qt/platformstyle.h>
  #include <qt/walletmodel.h>
  
  #include <wallet/coincontrol.h>
  #include <interfaces/node.h>
  #include <key_io.h>
  #include <policy/policy.h>
  #include <wallet/wallet.h>
  
  #include <QApplication>
  #include <QCheckBox>
  #include <QCursor>
  #include <QDialogButtonBox>
  #include <QFlags>
  #include <QIcon>
  #include <QSettings>
  #include <QTreeWidget>
  
  QList<CAmount> CoinControlDialog::payAmounts;
  bool CoinControlDialog::fSubtractFeeFromAmount = false;
  
  bool CCoinControlWidgetItem::operator<(const QTreeWidgetItem &other) const {
      int column = treeWidget()->sortColumn();
      if (column == CoinControlDialog::COLUMN_AMOUNT || column == CoinControlDialog::COLUMN_DATE || column == CoinControlDialog::COLUMN_CONFIRMATIONS)
          return data(column, Qt::UserRole).toLongLong() < other.data(column, Qt::UserRole).toLongLong();
      return QTreeWidgetItem::operator<(other);
  }
  
  CoinControlDialog::CoinControlDialog(CCoinControl& coin_control, WalletModel* _model, const PlatformStyle *_platformStyle, QWidget *parent) :
      QDialog(parent, GUIUtil::dialog_flags),
      ui(new Ui::CoinControlDialog),
      m_coin_control(coin_control),
      model(_model),
      platformStyle(_platformStyle)
  {
      ui->setupUi(this);
  
      // context menu
      contextMenu = new QMenu(this);
      contextMenu->addAction(tr("&Copy address"), this, &CoinControlDialog::copyAddress);
      contextMenu->addAction(tr("Copy &label"), this, &CoinControlDialog::copyLabel);
      contextMenu->addAction(tr("Copy &amount"), this, &CoinControlDialog::copyAmount);
      copyTransactionHashAction = contextMenu->addAction(tr("Copy transaction &ID"), this, &CoinControlDialog::copyTransactionHash);
      contextMenu->addSeparator();
      lockAction = contextMenu->addAction(tr("L&ock unspent"), this, &CoinControlDialog::lockCoin);
      unlockAction = contextMenu->addAction(tr("&Unlock unspent"), this, &CoinControlDialog::unlockCoin);
      connect(ui->treeWidget, &QWidget::customContextMenuRequested, this, &CoinControlDialog::showMenu);
  
      // clipboard actions
      QAction *clipboardQuantityAction = new QAction(tr("Copy quantity"), this);
      QAction *clipboardAmountAction = new QAction(tr("Copy amount"), this);
      QAction *clipboardFeeAction = new QAction(tr("Copy fee"), this);
      QAction *clipboardAfterFeeAction = new QAction(tr("Copy after fee"), this);
      QAction *clipboardBytesAction = new QAction(tr("Copy bytes"), this);
      QAction *clipboardLowOutputAction = new QAction(tr("Copy dust"), this);
      QAction *clipboardChangeAction = new QAction(tr("Copy change"), this);
  
      connect(clipboardQuantityAction, &QAction::triggered, this, &CoinControlDialog::clipboardQuantity);
      connect(clipboardAmountAction, &QAction::triggered, this, &CoinControlDialog::clipboardAmount);
      connect(clipboardFeeAction, &QAction::triggered, this, &CoinControlDialog::clipboardFee);
      connect(clipboardAfterFeeAction, &QAction::triggered, this, &CoinControlDialog::clipboardAfterFee);
      connect(clipboardBytesAction, &QAction::triggered, this, &CoinControlDialog::clipboardBytes);
      connect(clipboardLowOutputAction, &QAction::triggered, this, &CoinControlDialog::clipboardLowOutput);
      connect(clipboardChangeAction, &QAction::triggered, this, &CoinControlDialog::clipboardChange);
  
      ui->labelCoinControlQuantity->addAction(clipboardQuantityAction);
      ui->labelCoinControlAmount->addAction(clipboardAmountAction);
      ui->labelCoinControlFee->addAction(clipboardFeeAction);
      ui->labelCoinControlAfterFee->addAction(clipboardAfterFeeAction);
      ui->labelCoinControlBytes->addAction(clipboardBytesAction);
      ui->labelCoinControlLowOutput->addAction(clipboardLowOutputAction);
      ui->labelCoinControlChange->addAction(clipboardChangeAction);
  
      // toggle tree/list mode
      connect(ui->radioTreeMode, &QRadioButton::toggled, this, &CoinControlDialog::radioTreeMode);
      connect(ui->radioListMode, &QRadioButton::toggled, this, &CoinControlDialog::radioListMode);
  
      // click on checkbox
      connect(ui->treeWidget, &QTreeWidget::itemChanged, this, &CoinControlDialog::viewItemChanged);
  
      // click on header
      ui->treeWidget->header()->setSectionsClickable(true);
      connect(ui->treeWidget->header(), &QHeaderView::sectionClicked, this, &CoinControlDialog::headerSectionClicked);
  
      // ok button
      connect(ui->buttonBox, &QDialogButtonBox::clicked, this, &CoinControlDialog::buttonBoxClicked);
  
      // (un)select all
      connect(ui->pushButtonSelectAll, &QPushButton::clicked, this, &CoinControlDialog::buttonSelectAllClicked);
  
      ui->treeWidget->setColumnWidth(COLUMN_CHECKBOX, 84);
      ui->treeWidget->setColumnWidth(COLUMN_AMOUNT, 110);
      ui->treeWidget->setColumnWidth(COLUMN_LABEL, 190);
      ui->treeWidget->setColumnWidth(COLUMN_ADDRESS, 320);
      ui->treeWidget->setColumnWidth(COLUMN_DATE, 130);
      ui->treeWidget->setColumnWidth(COLUMN_CONFIRMATIONS, 110);
  
      // default view is sorted by amount desc
      sortView(COLUMN_AMOUNT, Qt::DescendingOrder);
  
      // restore list mode and sortorder as a convenience feature
      QSettings settings;
      if (settings.contains("nCoinControlMode") && !settings.value("nCoinControlMode").toBool())
          ui->radioTreeMode->click();
      if (settings.contains("nCoinControlSortColumn") && settings.contains("nCoinControlSortOrder"))
          sortView(settings.value("nCoinControlSortColumn").toInt(), (static_cast<Qt::SortOrder>(settings.value("nCoinControlSortOrder").toInt())));
  
      GUIUtil::handleCloseWindowShortcut(this);
  
      if(_model->getOptionsModel() && _model->getAddressTableModel())
      {
          updateView();
          updateLabelLocked();
          CoinControlDialog::updateLabels(m_coin_control, _model, this);
      }
  }
  
  CoinControlDialog::~CoinControlDialog()
  {
      QSettings settings;
      settings.setValue("nCoinControlMode", ui->radioListMode->isChecked());
      settings.setValue("nCoinControlSortColumn", sortColumn);
      settings.setValue("nCoinControlSortOrder", (int)sortOrder);
  
      delete ui;
  }
  
  // ok button
  void CoinControlDialog::buttonBoxClicked(QAbstractButton* button)
  {
      if (ui->buttonBox->buttonRole(button) == QDialogButtonBox::AcceptRole)
          done(QDialog::Accepted); // closes the dialog
  }
  
  // (un)select all
  void CoinControlDialog::buttonSelectAllClicked()
  {
      Qt::CheckState state = Qt::Checked;
      for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
      {
          if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) != Qt::Unchecked)
          {
              state = Qt::Unchecked;
              break;
          }
      }
      ui->treeWidget->setEnabled(false);
      for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
              if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) != state)
                  ui->treeWidget->topLevelItem(i)->setCheckState(COLUMN_CHECKBOX, state);
      ui->treeWidget->setEnabled(true);
      if (state == Qt::Unchecked)
          m_coin_control.UnSelectAll(); // just to be sure
      CoinControlDialog::updateLabels(m_coin_control, model, this);
  }
  
  // context menu
  void CoinControlDialog::showMenu(const QPoint &point)
  {
      QTreeWidgetItem *item = ui->treeWidget->itemAt(point);
      if(item)
      {
          contextMenuItem = item;
  
          // disable some items (like Copy Transaction ID, lock, unlock) for tree roots in context menu
          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)
          {
              copyTransactionHashAction->setEnabled(true);
              if (model->wallet().isLockedCoin(COutPoint(uint256S(item->data(COLUMN_ADDRESS, TxHashRole).toString().toStdString()), item->data(COLUMN_ADDRESS, VOutRole).toUInt())))
              {
                  lockAction->setEnabled(false);
                  unlockAction->setEnabled(true);
              }
              else
              {
                  lockAction->setEnabled(true);
                  unlockAction->setEnabled(false);
              }
          }
          else // this means click on parent node in tree mode -> disable all
          {
              copyTransactionHashAction->setEnabled(false);
              lockAction->setEnabled(false);
              unlockAction->setEnabled(false);
          }
  
          // show context menu
          contextMenu->exec(QCursor::pos());
      }
  }
  
  // context menu action: copy amount
  void CoinControlDialog::copyAmount()
  {
      GUIUtil::setClipboard(BitcoinUnits::removeSpaces(contextMenuItem->text(COLUMN_AMOUNT)));
  }
  
  // context menu action: copy label
  void CoinControlDialog::copyLabel()
  {
      if (ui->radioTreeMode->isChecked() && contextMenuItem->text(COLUMN_LABEL).length() == 0 && contextMenuItem->parent())
          GUIUtil::setClipboard(contextMenuItem->parent()->text(COLUMN_LABEL));
      else
          GUIUtil::setClipboard(contextMenuItem->text(COLUMN_LABEL));
  }
  
  // context menu action: copy address
  void CoinControlDialog::copyAddress()
  {
      if (ui->radioTreeMode->isChecked() && contextMenuItem->text(COLUMN_ADDRESS).length() == 0 && contextMenuItem->parent())
          GUIUtil::setClipboard(contextMenuItem->parent()->text(COLUMN_ADDRESS));
      else
          GUIUtil::setClipboard(contextMenuItem->text(COLUMN_ADDRESS));
  }
  
  // context menu action: copy transaction id
  void CoinControlDialog::copyTransactionHash()
  {
      GUIUtil::setClipboard(contextMenuItem->data(COLUMN_ADDRESS, TxHashRole).toString());
  }
  
  // context menu action: lock coin
  void CoinControlDialog::lockCoin()
  {
      if (contextMenuItem->checkState(COLUMN_CHECKBOX) == Qt::Checked)
          contextMenuItem->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
  
      COutPoint outpt(uint256S(contextMenuItem->data(COLUMN_ADDRESS, TxHashRole).toString().toStdString()), contextMenuItem->data(COLUMN_ADDRESS, VOutRole).toUInt());
      model->wallet().lockCoin(outpt);
      contextMenuItem->setDisabled(true);
      contextMenuItem->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
      updateLabelLocked();
  }
  
  // context menu action: unlock coin
  void CoinControlDialog::unlockCoin()
  {
      COutPoint outpt(uint256S(contextMenuItem->data(COLUMN_ADDRESS, TxHashRole).toString().toStdString()), contextMenuItem->data(COLUMN_ADDRESS, VOutRole).toUInt());
      model->wallet().unlockCoin(outpt);
      contextMenuItem->setDisabled(false);
      contextMenuItem->setIcon(COLUMN_CHECKBOX, QIcon());
      updateLabelLocked();
  }
  
  // copy label "Quantity" to clipboard
  void CoinControlDialog::clipboardQuantity()
  {
      GUIUtil::setClipboard(ui->labelCoinControlQuantity->text());
  }
  
  // copy label "Amount" to clipboard
  void CoinControlDialog::clipboardAmount()
  {
      GUIUtil::setClipboard(ui->labelCoinControlAmount->text().left(ui->labelCoinControlAmount->text().indexOf(" ")));
  }
  
  // copy label "Fee" to clipboard
  void CoinControlDialog::clipboardFee()
  {
      GUIUtil::setClipboard(ui->labelCoinControlFee->text().left(ui->labelCoinControlFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
  }
  
  // copy label "After fee" to clipboard
  void CoinControlDialog::clipboardAfterFee()
  {
      GUIUtil::setClipboard(ui->labelCoinControlAfterFee->text().left(ui->labelCoinControlAfterFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
  }
  
  // copy label "Bytes" to clipboard
  void CoinControlDialog::clipboardBytes()
  {
      GUIUtil::setClipboard(ui->labelCoinControlBytes->text().replace(ASYMP_UTF8, ""));
  }
  
  // copy label "Dust" to clipboard
  void CoinControlDialog::clipboardLowOutput()
  {
      GUIUtil::setClipboard(ui->labelCoinControlLowOutput->text());
  }
  
  // copy label "Change" to clipboard
  void CoinControlDialog::clipboardChange()
  {
      GUIUtil::setClipboard(ui->labelCoinControlChange->text().left(ui->labelCoinControlChange->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
  }
  
  // treeview: sort
  void CoinControlDialog::sortView(int column, Qt::SortOrder order)
  {
      sortColumn = column;
      sortOrder = order;
      ui->treeWidget->sortItems(column, order);
      ui->treeWidget->header()->setSortIndicator(sortColumn, sortOrder);
  }
  
  // treeview: clicked on header
  void CoinControlDialog::headerSectionClicked(int logicalIndex)
  {
      if (logicalIndex == COLUMN_CHECKBOX) // click on most left column -> do nothing
      {
          ui->treeWidget->header()->setSortIndicator(sortColumn, sortOrder);
      }
      else
      {
          if (sortColumn == logicalIndex)
              sortOrder = ((sortOrder == Qt::AscendingOrder) ? Qt::DescendingOrder : Qt::AscendingOrder);
          else
          {
              sortColumn = logicalIndex;
              sortOrder = ((sortColumn == COLUMN_LABEL || sortColumn == COLUMN_ADDRESS) ? Qt::AscendingOrder : Qt::DescendingOrder); // if label or address then default => asc, else default => desc
          }
  
          sortView(sortColumn, sortOrder);
      }
  }
  
  // toggle tree mode
  void CoinControlDialog::radioTreeMode(bool checked)
  {
      if (checked && model)
          updateView();
  }
  
  // toggle list mode
  void CoinControlDialog::radioListMode(bool checked)
  {
      if (checked && model)
          updateView();
  }
  
  // checkbox clicked by user
  void CoinControlDialog::viewItemChanged(QTreeWidgetItem* item, int column)
  {
      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)
      {
          COutPoint outpt(uint256S(item->data(COLUMN_ADDRESS, TxHashRole).toString().toStdString()), item->data(COLUMN_ADDRESS, VOutRole).toUInt());
  
          if (item->checkState(COLUMN_CHECKBOX) == Qt::Unchecked)
              m_coin_control.UnSelect(outpt);
          else if (item->isDisabled()) // locked (this happens if "check all" through parent node)
              item->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
          else
              m_coin_control.Select(outpt);
  
          // selection changed -> update labels
          if (ui->treeWidget->isEnabled()) // do not update on every click for (un)select all
              CoinControlDialog::updateLabels(m_coin_control, model, this);
      }
  }
  
  // shows count of locked unspent outputs
  void CoinControlDialog::updateLabelLocked()
  {
      std::vector<COutPoint> vOutpts;
      model->wallet().listLockedCoins(vOutpts);
      if (vOutpts.size() > 0)
      {
         ui->labelLocked->setText(tr("(%1 locked)").arg(vOutpts.size()));
         ui->labelLocked->setVisible(true);
      }
      else ui->labelLocked->setVisible(false);
  }
  
  void CoinControlDialog::updateLabels(CCoinControl& m_coin_control, WalletModel *model, QDialog* dialog)
  {
      if (!model)
          return;
  
      // nPayAmount
      CAmount nPayAmount = 0;
      bool fDust = false;
      for (const CAmount &amount : CoinControlDialog::payAmounts)
      {
          nPayAmount += amount;
  
          if (amount > 0)
          {
              // Assumes a p2pkh script size
              CTxOut txout(amount, CScript() << std::vector<unsigned char>(24, 0));
              fDust |= IsDust(txout, model->node().getDustRelayFee());
          }
      }
  
      CAmount nAmount             = 0;
      CAmount nPayFee             = 0;
      CAmount nAfterFee           = 0;
      CAmount nChange             = 0;
      unsigned int nBytes         = 0;
      unsigned int nBytesInputs   = 0;
      unsigned int nQuantity      = 0;
      bool fWitness               = false;
  
      std::vector<COutPoint> vCoinControl;
      m_coin_control.ListSelected(vCoinControl);
  
      size_t i = 0;
      for (const auto& out : model->wallet().getCoins(vCoinControl)) {
          if (out.depth_in_main_chain < 0) continue;
  
          // unselect already spent, very unlikely scenario, this could happen
          // when selected are spent elsewhere, like rpc or another computer
          const COutPoint& outpt = vCoinControl[i++];
          if (out.is_spent)
          {
              m_coin_control.UnSelect(outpt);
              continue;
          }
  
          // Quantity
          nQuantity++;
  
          // Amount
          nAmount += out.txout.nValue;
  
          // Bytes
          CTxDestination address;
          int witnessversion = 0;
          std::vector<unsigned char> witnessprogram;
          if (out.txout.scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram))
          {
              nBytesInputs += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4);
              fWitness = true;
          }
          else if(ExtractDestination(out.txout.scriptPubKey, address))
          {
              CPubKey pubkey;
              PKHash* pkhash = std::get_if<PKHash>(&address);
              if (pkhash && model->wallet().getPubKey(out.txout.scriptPubKey, ToKeyID(*pkhash), pubkey))
              {
                  nBytesInputs += (pubkey.IsCompressed() ? 148 : 180);
              }
              else
                  nBytesInputs += 148; // in all error cases, simply assume 148 here
          }
          else nBytesInputs += 148;
      }
  
      // calculation
      if (nQuantity > 0)
      {
          // Bytes
          nBytes = nBytesInputs + ((CoinControlDialog::payAmounts.size() > 0 ? CoinControlDialog::payAmounts.size() + 1 : 2) * 34) + 10; // always assume +1 output for change here
          if (fWitness)
          {
              // there is some fudging in these numbers related to the actual virtual transaction size calculation that will keep this estimate from being exact.
              // usually, the result will be an overestimate within a couple of satoshis so that the confirmation dialog ends up displaying a slightly smaller fee.
              // 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.
              nBytes += 2; // account for the serialized marker and flag bytes
              nBytes += nQuantity; // account for the witness byte that holds the number of stack items for each input.
          }
  
          // 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
          if (CoinControlDialog::fSubtractFeeFromAmount)
              if (nAmount - nPayAmount == 0)
                  nBytes -= 34;
  
          // Fee
          nPayFee = model->wallet().getMinimumFee(nBytes, m_coin_control, nullptr /* returned_target */, nullptr /* reason */);
  
          if (nPayAmount > 0)
          {
              nChange = nAmount - nPayAmount;
              if (!CoinControlDialog::fSubtractFeeFromAmount)
                  nChange -= nPayFee;
  
              // Never create dust outputs; if we would, just add the dust to the fee.
              if (nChange > 0 && nChange < MIN_CHANGE)
              {
                  // Assumes a p2pkh script size
                  CTxOut txout(nChange, CScript() << std::vector<unsigned char>(24, 0));
                  if (IsDust(txout, model->node().getDustRelayFee()))
                  {
                      nPayFee += nChange;
                      nChange = 0;
                      if (CoinControlDialog::fSubtractFeeFromAmount)
                          nBytes -= 34; // we didn't detect lack of change above
                  }
              }
  
              if (nChange == 0 && !CoinControlDialog::fSubtractFeeFromAmount)
                  nBytes -= 34;
          }
  
          // after fee
          nAfterFee = std::max<CAmount>(nAmount - nPayFee, 0);
      }
  
      // actually update labels
      int nDisplayUnit = BitcoinUnits::BTC;
      if (model && model->getOptionsModel())
          nDisplayUnit = model->getOptionsModel()->getDisplayUnit();
  
      QLabel *l1 = dialog->findChild<QLabel *>("labelCoinControlQuantity");
      QLabel *l2 = dialog->findChild<QLabel *>("labelCoinControlAmount");
      QLabel *l3 = dialog->findChild<QLabel *>("labelCoinControlFee");
      QLabel *l4 = dialog->findChild<QLabel *>("labelCoinControlAfterFee");
      QLabel *l5 = dialog->findChild<QLabel *>("labelCoinControlBytes");
      QLabel *l7 = dialog->findChild<QLabel *>("labelCoinControlLowOutput");
      QLabel *l8 = dialog->findChild<QLabel *>("labelCoinControlChange");
  
      // enable/disable "dust" and "change"
      dialog->findChild<QLabel *>("labelCoinControlLowOutputText")->setEnabled(nPayAmount > 0);
      dialog->findChild<QLabel *>("labelCoinControlLowOutput")    ->setEnabled(nPayAmount > 0);
      dialog->findChild<QLabel *>("labelCoinControlChangeText")   ->setEnabled(nPayAmount > 0);
      dialog->findChild<QLabel *>("labelCoinControlChange")       ->setEnabled(nPayAmount > 0);
  
      // stats
      l1->setText(QString::number(nQuantity));                                 // Quantity
      l2->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nAmount));        // Amount
      l3->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nPayFee));        // Fee
      l4->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nAfterFee));      // After Fee
      l5->setText(((nBytes > 0) ? ASYMP_UTF8 : "") + QString::number(nBytes));        // Bytes
      l7->setText(fDust ? tr("yes") : tr("no"));                               // Dust
      l8->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nChange));        // Change
      if (nPayFee > 0)
      {
          l3->setText(ASYMP_UTF8 + l3->text());
          l4->setText(ASYMP_UTF8 + l4->text());
          if (nChange > 0 && !CoinControlDialog::fSubtractFeeFromAmount)
              l8->setText(ASYMP_UTF8 + l8->text());
      }
  
      // turn label red when dust
      l7->setStyleSheet((fDust) ? "color:red;" : "");
  
      // tool tips
      QString toolTipDust = tr("This label turns red if any recipient receives an amount smaller than the current dust threshold.");
  
      // how many satoshis the estimated fee can vary per byte we guess wrong
      double dFeeVary = (nBytes != 0) ? (double)nPayFee / nBytes : 0;
  
      QString toolTip4 = tr("Can vary +/- %1 satoshi(s) per input.").arg(dFeeVary);
  
      l3->setToolTip(toolTip4);
      l4->setToolTip(toolTip4);
      l7->setToolTip(toolTipDust);
      l8->setToolTip(toolTip4);
      dialog->findChild<QLabel *>("labelCoinControlFeeText")      ->setToolTip(l3->toolTip());
      dialog->findChild<QLabel *>("labelCoinControlAfterFeeText") ->setToolTip(l4->toolTip());
      dialog->findChild<QLabel *>("labelCoinControlBytesText")    ->setToolTip(l5->toolTip());
      dialog->findChild<QLabel *>("labelCoinControlLowOutputText")->setToolTip(l7->toolTip());
      dialog->findChild<QLabel *>("labelCoinControlChangeText")   ->setToolTip(l8->toolTip());
  
      // Insufficient funds
      QLabel *label = dialog->findChild<QLabel *>("labelCoinControlInsuffFunds");
      if (label)
          label->setVisible(nChange < 0);
  }
  
  void CoinControlDialog::changeEvent(QEvent* e)
  {
      if (e->type() == QEvent::PaletteChange) {
          updateView();
      }
  
      QDialog::changeEvent(e);
  }
  
  void CoinControlDialog::updateView()
  {
      if (!model || !model->getOptionsModel() || !model->getAddressTableModel())
          return;
  
      bool treeMode = ui->radioTreeMode->isChecked();
  
      ui->treeWidget->clear();
      ui->treeWidget->setEnabled(false); // performance, otherwise updateLabels would be called for every checked checkbox
      ui->treeWidget->setAlternatingRowColors(!treeMode);
      QFlags<Qt::ItemFlag> flgCheckbox = Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable;
      QFlags<Qt::ItemFlag> flgTristate = Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable | Qt::ItemIsTristate;
  
      int nDisplayUnit = model->getOptionsModel()->getDisplayUnit();
  
      for (const auto& coins : model->wallet().listCoins()) {
          CCoinControlWidgetItem* itemWalletAddress{nullptr};
          QString sWalletAddress = QString::fromStdString(EncodeDestination(coins.first));
          QString sWalletLabel = model->getAddressTableModel()->labelForAddress(sWalletAddress);
          if (sWalletLabel.isEmpty())
              sWalletLabel = tr("(no label)");
  
          if (treeMode)
          {
              // wallet address
              itemWalletAddress = new CCoinControlWidgetItem(ui->treeWidget);
  
              itemWalletAddress->setFlags(flgTristate);
              itemWalletAddress->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
  
              // label
              itemWalletAddress->setText(COLUMN_LABEL, sWalletLabel);
  
              // address
              itemWalletAddress->setText(COLUMN_ADDRESS, sWalletAddress);
          }
  
          CAmount nSum = 0;
          int nChildren = 0;
          for (const auto& outpair : coins.second) {
              const COutPoint& output = std::get<0>(outpair);
              const interfaces::WalletTxOut& out = std::get<1>(outpair);
              nSum += out.txout.nValue;
              nChildren++;
  
              CCoinControlWidgetItem *itemOutput;
              if (treeMode)    itemOutput = new CCoinControlWidgetItem(itemWalletAddress);
              else             itemOutput = new CCoinControlWidgetItem(ui->treeWidget);
              itemOutput->setFlags(flgCheckbox);
              itemOutput->setCheckState(COLUMN_CHECKBOX,Qt::Unchecked);
  
              // address
              CTxDestination outputAddress;
              QString sAddress = "";
              if(ExtractDestination(out.txout.scriptPubKey, outputAddress))
              {
                  sAddress = QString::fromStdString(EncodeDestination(outputAddress));
  
                  // if listMode or change => show bitcoin address. In tree mode, address is not shown again for direct wallet address outputs
                  if (!treeMode || (!(sAddress == sWalletAddress)))
                      itemOutput->setText(COLUMN_ADDRESS, sAddress);
              }
  
              // label
              if (!(sAddress == sWalletAddress)) // change
              {
                  // tooltip from where the change comes from
                  itemOutput->setToolTip(COLUMN_LABEL, tr("change from %1 (%2)").arg(sWalletLabel).arg(sWalletAddress));
                  itemOutput->setText(COLUMN_LABEL, tr("(change)"));
              }
              else if (!treeMode)
              {
                  QString sLabel = model->getAddressTableModel()->labelForAddress(sAddress);
                  if (sLabel.isEmpty())
                      sLabel = tr("(no label)");
                  itemOutput->setText(COLUMN_LABEL, sLabel);
              }
  
              // amount
              itemOutput->setText(COLUMN_AMOUNT, BitcoinUnits::format(nDisplayUnit, out.txout.nValue));
              itemOutput->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)out.txout.nValue)); // padding so that sorting works correctly
  
              // date
              itemOutput->setText(COLUMN_DATE, GUIUtil::dateTimeStr(out.time));
              itemOutput->setData(COLUMN_DATE, Qt::UserRole, QVariant((qlonglong)out.time));
  
              // confirmations
              itemOutput->setText(COLUMN_CONFIRMATIONS, QString::number(out.depth_in_main_chain));
              itemOutput->setData(COLUMN_CONFIRMATIONS, Qt::UserRole, QVariant((qlonglong)out.depth_in_main_chain));
  
              // transaction hash
              itemOutput->setData(COLUMN_ADDRESS, TxHashRole, QString::fromStdString(output.hash.GetHex()));
  
              // vout index
              itemOutput->setData(COLUMN_ADDRESS, VOutRole, output.n);
  
               // disable locked coins
              if (model->wallet().isLockedCoin(output))
              {
                  m_coin_control.UnSelect(output); // just to be sure
                  itemOutput->setDisabled(true);
                  itemOutput->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
              }
  
              // set checkbox
              if (m_coin_control.IsSelected(output))
                  itemOutput->setCheckState(COLUMN_CHECKBOX, Qt::Checked);
          }
  
          // amount
          if (treeMode)
          {
              itemWalletAddress->setText(COLUMN_CHECKBOX, "(" + QString::number(nChildren) + ")");
              itemWalletAddress->setText(COLUMN_AMOUNT, BitcoinUnits::format(nDisplayUnit, nSum));
              itemWalletAddress->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)nSum));
          }
      }
  
      // expand all partially selected
      if (treeMode)
      {
          for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
              if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) == Qt::PartiallyChecked)
                  ui->treeWidget->topLevelItem(i)->setExpanded(true);
      }
  
      // sort view
      sortView(sortColumn, sortOrder);
      ui->treeWidget->setEnabled(true);
  }
  