src/qt/coincontroldialog.cpp

   1 // Copyright (c) 2011-2016 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 "coincontroldialog.h"
   6 #include "ui_coincontroldialog.h"
   7
   8 #include "addresstablemodel.h"
   9 #include "bitcoinunits.h"
  10 #include "guiutil.h"
  11 #include "optionsmodel.h"
  12 #include "platformstyle.h"
  13 #include "txmempool.h"
  14 #include "walletmodel.h"
  15
  16 #include "wallet/coincontrol.h"
  17 #include "init.h"
  18 #include "policy/fees.h"
  19 #include "policy/policy.h"
  20 #include "validation.h" // For mempool
  21 #include "wallet/wallet.h"
  22
  23 #include <QApplication>
  24 #include <QCheckBox>
  25 #include <QCursor>
  26 #include <QDialogButtonBox>
  27 #include <QFlags>
  28 #include <QIcon>
  29 #include <QSettings>
  30 #include <QString>
  31 #include <QTreeWidget>
  32 #include <QTreeWidgetItem>
  33
  34 QList<CAmount> CoinControlDialog::payAmounts;
  35 CCoinControl* CoinControlDialog::coinControl = new CCoinControl();
  36 bool CoinControlDialog::fSubtractFeeFromAmount = false;
  37
  38 bool CCoinControlWidgetItem::operator<(const QTreeWidgetItem &other) const {
  39     int column = treeWidget()->sortColumn();
  40     if (column == CoinControlDialog::COLUMN_AMOUNT || column == CoinControlDialog::COLUMN_DATE || column == CoinControlDialog::COLUMN_CONFIRMATIONS)
  41         return data(column, Qt::UserRole).toLongLong() < other.data(column, Qt::UserRole).toLongLong();
  42     return QTreeWidgetItem::operator<(other);
  43 }
  44
  45 CoinControlDialog::CoinControlDialog(const PlatformStyle *_platformStyle, QWidget *parent) :
  46     QDialog(parent),
  47     ui(new Ui::CoinControlDialog),
  48     model(0),
  49     platformStyle(_platformStyle)
  50 {
  51     ui->setupUi(this);
  52
  53     // context menu actions
  54     QAction *copyAddressAction = new QAction(tr("Copy address"), this);
  55     QAction *copyLabelAction = new QAction(tr("Copy label"), this);
  56     QAction *copyAmountAction = new QAction(tr("Copy amount"), this);
  57              copyTransactionHashAction = new QAction(tr("Copy transaction ID"), this);  // we need to enable/disable this
  58              lockAction = new QAction(tr("Lock unspent"), this);                        // we need to enable/disable this
  59              unlockAction = new QAction(tr("Unlock unspent"), this);                    // we need to enable/disable this
  60
  61     // context menu
  62     contextMenu = new QMenu(this);
  63     contextMenu->addAction(copyAddressAction);
  64     contextMenu->addAction(copyLabelAction);
  65     contextMenu->addAction(copyAmountAction);
  66     contextMenu->addAction(copyTransactionHashAction);
  67     contextMenu->addSeparator();
  68     contextMenu->addAction(lockAction);
  69     contextMenu->addAction(unlockAction);
  70
  71     // context menu signals
  72     connect(ui->treeWidget, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showMenu(QPoint)));
  73     connect(copyAddressAction, SIGNAL(triggered()), this, SLOT(copyAddress()));
  74     connect(copyLabelAction, SIGNAL(triggered()), this, SLOT(copyLabel()));
  75     connect(copyAmountAction, SIGNAL(triggered()), this, SLOT(copyAmount()));
  76     connect(copyTransactionHashAction, SIGNAL(triggered()), this, SLOT(copyTransactionHash()));
  77     connect(lockAction, SIGNAL(triggered()), this, SLOT(lockCoin()));
  78     connect(unlockAction, SIGNAL(triggered()), this, SLOT(unlockCoin()));
  79
  80     // clipboard actions
  81     QAction *clipboardQuantityAction = new QAction(tr("Copy quantity"), this);
  82     QAction *clipboardAmountAction = new QAction(tr("Copy amount"), this);
  83     QAction *clipboardFeeAction = new QAction(tr("Copy fee"), this);
  84     QAction *clipboardAfterFeeAction = new QAction(tr("Copy after fee"), this);
  85     QAction *clipboardBytesAction = new QAction(tr("Copy bytes"), this);
  86     QAction *clipboardLowOutputAction = new QAction(tr("Copy dust"), this);
  87     QAction *clipboardChangeAction = new QAction(tr("Copy change"), this);
  88
  89     connect(clipboardQuantityAction, SIGNAL(triggered()), this, SLOT(clipboardQuantity()));
  90     connect(clipboardAmountAction, SIGNAL(triggered()), this, SLOT(clipboardAmount()));
  91     connect(clipboardFeeAction, SIGNAL(triggered()), this, SLOT(clipboardFee()));
  92     connect(clipboardAfterFeeAction, SIGNAL(triggered()), this, SLOT(clipboardAfterFee()));
  93     connect(clipboardBytesAction, SIGNAL(triggered()), this, SLOT(clipboardBytes()));
  94     connect(clipboardLowOutputAction, SIGNAL(triggered()), this, SLOT(clipboardLowOutput()));
  95     connect(clipboardChangeAction, SIGNAL(triggered()), this, SLOT(clipboardChange()));
  96
  97     ui->labelCoinControlQuantity->addAction(clipboardQuantityAction);
  98     ui->labelCoinControlAmount->addAction(clipboardAmountAction);
  99     ui->labelCoinControlFee->addAction(clipboardFeeAction);
 100     ui->labelCoinControlAfterFee->addAction(clipboardAfterFeeAction);
 101     ui->labelCoinControlBytes->addAction(clipboardBytesAction);
 102     ui->labelCoinControlLowOutput->addAction(clipboardLowOutputAction);
 103     ui->labelCoinControlChange->addAction(clipboardChangeAction);
 104
 105     // toggle tree/list mode
 106     connect(ui->radioTreeMode, SIGNAL(toggled(bool)), this, SLOT(radioTreeMode(bool)));
 107     connect(ui->radioListMode, SIGNAL(toggled(bool)), this, SLOT(radioListMode(bool)));
 108
 109     // click on checkbox
 110     connect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*, int)), this, SLOT(viewItemChanged(QTreeWidgetItem*, int)));
 111
 112     // click on header
 113 #if QT_VERSION < 0x050000
 114     ui->treeWidget->header()->setClickable(true);
 115 #else
 116     ui->treeWidget->header()->setSectionsClickable(true);
 117 #endif
 118     connect(ui->treeWidget->header(), SIGNAL(sectionClicked(int)), this, SLOT(headerSectionClicked(int)));
 119
 120     // ok button
 121     connect(ui->buttonBox, SIGNAL(clicked( QAbstractButton*)), this, SLOT(buttonBoxClicked(QAbstractButton*)));
 122
 123     // (un)select all
 124     connect(ui->pushButtonSelectAll, SIGNAL(clicked()), this, SLOT(buttonSelectAllClicked()));
 125
 126     // change coin control first column label due Qt4 bug.
 127     // see https://github.com/bitcoin/bitcoin/issues/5716
 128     ui->treeWidget->headerItem()->setText(COLUMN_CHECKBOX, QString());
 129
 130     ui->treeWidget->setColumnWidth(COLUMN_CHECKBOX, 84);
 131     ui->treeWidget->setColumnWidth(COLUMN_AMOUNT, 110);
 132     ui->treeWidget->setColumnWidth(COLUMN_LABEL, 190);
 133     ui->treeWidget->setColumnWidth(COLUMN_ADDRESS, 320);
 134     ui->treeWidget->setColumnWidth(COLUMN_DATE, 130);
 135     ui->treeWidget->setColumnWidth(COLUMN_CONFIRMATIONS, 110);
 136     ui->treeWidget->setColumnHidden(COLUMN_TXHASH, true);         // store transaction hash in this column, but don't show it
 137     ui->treeWidget->setColumnHidden(COLUMN_VOUT_INDEX, true);     // store vout index in this column, but don't show it
 138
 139     // default view is sorted by amount desc
 140     sortView(COLUMN_AMOUNT, Qt::DescendingOrder);
 141
 142     // restore list mode and sortorder as a convenience feature
 143     QSettings settings;
 144     if (settings.contains("nCoinControlMode") && !settings.value("nCoinControlMode").toBool())
 145         ui->radioTreeMode->click();
 146     if (settings.contains("nCoinControlSortColumn") && settings.contains("nCoinControlSortOrder"))
 147         sortView(settings.value("nCoinControlSortColumn").toInt(), ((Qt::SortOrder)settings.value("nCoinControlSortOrder").toInt()));
 148 }
 149
 150 CoinControlDialog::~CoinControlDialog()
 151 {
 152     QSettings settings;
 153     settings.setValue("nCoinControlMode", ui->radioListMode->isChecked());
 154     settings.setValue("nCoinControlSortColumn", sortColumn);
 155     settings.setValue("nCoinControlSortOrder", (int)sortOrder);
 156
 157     delete ui;
 158 }
 159
 160 void CoinControlDialog::setModel(WalletModel *_model)
 161 {
 162     this->model = _model;
 163
 164     if(_model && _model->getOptionsModel() && _model->getAddressTableModel())
 165     {
 166         updateView();
 167         updateLabelLocked();
 168         CoinControlDialog::updateLabels(_model, this);
 169     }
 170 }
 171
 172 // ok button
 173 void CoinControlDialog::buttonBoxClicked(QAbstractButton* button)
 174 {
 175     if (ui->buttonBox->buttonRole(button) == QDialogButtonBox::AcceptRole)
 176         done(QDialog::Accepted); // closes the dialog
 177 }
 178
 179 // (un)select all
 180 void CoinControlDialog::buttonSelectAllClicked()
 181 {
 182     Qt::CheckState state = Qt::Checked;
 183     for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
 184     {
 185         if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) != Qt::Unchecked)
 186         {
 187             state = Qt::Unchecked;
 188             break;
 189         }
 190     }
 191     ui->treeWidget->setEnabled(false);
 192     for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
 193             if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) != state)
 194                 ui->treeWidget->topLevelItem(i)->setCheckState(COLUMN_CHECKBOX, state);
 195     ui->treeWidget->setEnabled(true);
 196     if (state == Qt::Unchecked)
 197         coinControl->UnSelectAll(); // just to be sure
 198     CoinControlDialog::updateLabels(model, this);
 199 }
 200
 201 // context menu
 202 void CoinControlDialog::showMenu(const QPoint &point)
 203 {
 204     QTreeWidgetItem *item = ui->treeWidget->itemAt(point);
 205     if(item)
 206     {
 207         contextMenuItem = item;
 208
 209         // disable some items (like Copy Transaction ID, lock, unlock) for tree roots in context menu
 210         if (item->text(COLUMN_TXHASH).length() == 64) // transaction hash is 64 characters (this means its a child node, so its not a parent node in tree mode)
 211         {
 212             copyTransactionHashAction->setEnabled(true);
 213             if (model->isLockedCoin(uint256S(item->text(COLUMN_TXHASH).toStdString()), item->text(COLUMN_VOUT_INDEX).toUInt()))
 214             {
 215                 lockAction->setEnabled(false);
 216                 unlockAction->setEnabled(true);
 217             }
 218             else
 219             {
 220                 lockAction->setEnabled(true);
 221                 unlockAction->setEnabled(false);
 222             }
 223         }
 224         else // this means click on parent node in tree mode -> disable all
 225         {
 226             copyTransactionHashAction->setEnabled(false);
 227             lockAction->setEnabled(false);
 228             unlockAction->setEnabled(false);
 229         }
 230
 231         // show context menu
 232         contextMenu->exec(QCursor::pos());
 233     }
 234 }
 235
 236 // context menu action: copy amount
 237 void CoinControlDialog::copyAmount()
 238 {
 239     GUIUtil::setClipboard(BitcoinUnits::removeSpaces(contextMenuItem->text(COLUMN_AMOUNT)));
 240 }
 241
 242 // context menu action: copy label
 243 void CoinControlDialog::copyLabel()
 244 {
 245     if (ui->radioTreeMode->isChecked() && contextMenuItem->text(COLUMN_LABEL).length() == 0 && contextMenuItem->parent())
 246         GUIUtil::setClipboard(contextMenuItem->parent()->text(COLUMN_LABEL));
 247     else
 248         GUIUtil::setClipboard(contextMenuItem->text(COLUMN_LABEL));
 249 }
 250
 251 // context menu action: copy address
 252 void CoinControlDialog::copyAddress()
 253 {
 254     if (ui->radioTreeMode->isChecked() && contextMenuItem->text(COLUMN_ADDRESS).length() == 0 && contextMenuItem->parent())
 255         GUIUtil::setClipboard(contextMenuItem->parent()->text(COLUMN_ADDRESS));
 256     else
 257         GUIUtil::setClipboard(contextMenuItem->text(COLUMN_ADDRESS));
 258 }
 259
 260 // context menu action: copy transaction id
 261 void CoinControlDialog::copyTransactionHash()
 262 {
 263     GUIUtil::setClipboard(contextMenuItem->text(COLUMN_TXHASH));
 264 }
 265
 266 // context menu action: lock coin
 267 void CoinControlDialog::lockCoin()
 268 {
 269     if (contextMenuItem->checkState(COLUMN_CHECKBOX) == Qt::Checked)
 270         contextMenuItem->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
 271
 272     COutPoint outpt(uint256S(contextMenuItem->text(COLUMN_TXHASH).toStdString()), contextMenuItem->text(COLUMN_VOUT_INDEX).toUInt());
 273     model->lockCoin(outpt);
 274     contextMenuItem->setDisabled(true);
 275     contextMenuItem->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
 276     updateLabelLocked();
 277 }
 278
 279 // context menu action: unlock coin
 280 void CoinControlDialog::unlockCoin()
 281 {
 282     COutPoint outpt(uint256S(contextMenuItem->text(COLUMN_TXHASH).toStdString()), contextMenuItem->text(COLUMN_VOUT_INDEX).toUInt());
 283     model->unlockCoin(outpt);
 284     contextMenuItem->setDisabled(false);
 285     contextMenuItem->setIcon(COLUMN_CHECKBOX, QIcon());
 286     updateLabelLocked();
 287 }
 288
 289 // copy label "Quantity" to clipboard
 290 void CoinControlDialog::clipboardQuantity()
 291 {
 292     GUIUtil::setClipboard(ui->labelCoinControlQuantity->text());
 293 }
 294
 295 // copy label "Amount" to clipboard
 296 void CoinControlDialog::clipboardAmount()
 297 {
 298     GUIUtil::setClipboard(ui->labelCoinControlAmount->text().left(ui->labelCoinControlAmount->text().indexOf(" ")));
 299 }
 300
 301 // copy label "Fee" to clipboard
 302 void CoinControlDialog::clipboardFee()
 303 {
 304     GUIUtil::setClipboard(ui->labelCoinControlFee->text().left(ui->labelCoinControlFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 305 }
 306
 307 // copy label "After fee" to clipboard
 308 void CoinControlDialog::clipboardAfterFee()
 309 {
 310     GUIUtil::setClipboard(ui->labelCoinControlAfterFee->text().left(ui->labelCoinControlAfterFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 311 }
 312
 313 // copy label "Bytes" to clipboard
 314 void CoinControlDialog::clipboardBytes()
 315 {
 316     GUIUtil::setClipboard(ui->labelCoinControlBytes->text().replace(ASYMP_UTF8, ""));
 317 }
 318
 319 // copy label "Dust" to clipboard
 320 void CoinControlDialog::clipboardLowOutput()
 321 {
 322     GUIUtil::setClipboard(ui->labelCoinControlLowOutput->text());
 323 }
 324
 325 // copy label "Change" to clipboard
 326 void CoinControlDialog::clipboardChange()
 327 {
 328     GUIUtil::setClipboard(ui->labelCoinControlChange->text().left(ui->labelCoinControlChange->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 329 }
 330
 331 // treeview: sort
 332 void CoinControlDialog::sortView(int column, Qt::SortOrder order)
 333 {
 334     sortColumn = column;
 335     sortOrder = order;
 336     ui->treeWidget->sortItems(column, order);
 337     ui->treeWidget->header()->setSortIndicator(sortColumn, sortOrder);
 338 }
 339
 340 // treeview: clicked on header
 341 void CoinControlDialog::headerSectionClicked(int logicalIndex)
 342 {
 343     if (logicalIndex == COLUMN_CHECKBOX) // click on most left column -> do nothing
 344     {
 345         ui->treeWidget->header()->setSortIndicator(sortColumn, sortOrder);
 346     }
 347     else
 348     {
 349         if (sortColumn == logicalIndex)
 350             sortOrder = ((sortOrder == Qt::AscendingOrder) ? Qt::DescendingOrder : Qt::AscendingOrder);
 351         else
 352         {
 353             sortColumn = logicalIndex;
 354             sortOrder = ((sortColumn == COLUMN_LABEL || sortColumn == COLUMN_ADDRESS) ? Qt::AscendingOrder : Qt::DescendingOrder); // if label or address then default => asc, else default => desc
 355         }
 356
 357         sortView(sortColumn, sortOrder);
 358     }
 359 }
 360
 361 // toggle tree mode
 362 void CoinControlDialog::radioTreeMode(bool checked)
 363 {
 364     if (checked && model)
 365         updateView();
 366 }
 367
 368 // toggle list mode
 369 void CoinControlDialog::radioListMode(bool checked)
 370 {
 371     if (checked && model)
 372         updateView();
 373 }
 374
 375 // checkbox clicked by user
 376 void CoinControlDialog::viewItemChanged(QTreeWidgetItem* item, int column)
 377 {
 378     if (column == COLUMN_CHECKBOX && item->text(COLUMN_TXHASH).length() == 64) // transaction hash is 64 characters (this means its a child node, so its not a parent node in tree mode)
 379     {
 380         COutPoint outpt(uint256S(item->text(COLUMN_TXHASH).toStdString()), item->text(COLUMN_VOUT_INDEX).toUInt());
 381
 382         if (item->checkState(COLUMN_CHECKBOX) == Qt::Unchecked)
 383             coinControl->UnSelect(outpt);
 384         else if (item->isDisabled()) // locked (this happens if "check all" through parent node)
 385             item->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
 386         else
 387             coinControl->Select(outpt);
 388
 389         // selection changed -> update labels
 390         if (ui->treeWidget->isEnabled()) // do not update on every click for (un)select all
 391             CoinControlDialog::updateLabels(model, this);
 392     }
 393
 394     // TODO: Remove this temporary qt5 fix after Qt5.3 and Qt5.4 are no longer used.
 395     //       Fixed in Qt5.5 and above: https://bugreports.qt.io/browse/QTBUG-43473
 396 #if QT_VERSION >= 0x050000
 397     else if (column == COLUMN_CHECKBOX && item->childCount() > 0)
 398     {
 399         if (item->checkState(COLUMN_CHECKBOX) == Qt::PartiallyChecked && item->child(0)->checkState(COLUMN_CHECKBOX) == Qt::PartiallyChecked)
 400             item->setCheckState(COLUMN_CHECKBOX, Qt::Checked);
 401     }
 402 #endif
 403 }
 404
 405 // shows count of locked unspent outputs
 406 void CoinControlDialog::updateLabelLocked()
 407 {
 408     std::vector<COutPoint> vOutpts;
 409     model->listLockedCoins(vOutpts);
 410     if (vOutpts.size() > 0)
 411     {
 412        ui->labelLocked->setText(tr("(%1 locked)").arg(vOutpts.size()));
 413        ui->labelLocked->setVisible(true);
 414     }
 415     else ui->labelLocked->setVisible(false);
 416 }
 417
 418 void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
 419 {
 420     if (!model)
 421         return;
 422
 423     // nPayAmount
 424     CAmount nPayAmount = 0;
 425     bool fDust = false;
 426     CMutableTransaction txDummy;
 427     for (const CAmount &amount : CoinControlDialog::payAmounts)
 428     {
 429         nPayAmount += amount;
 430
 431         if (amount > 0)
 432         {
 433             CTxOut txout(amount, (CScript)std::vector<unsigned char>(24, 0));
 434             txDummy.vout.push_back(txout);
 435             fDust |= IsDust(txout, ::dustRelayFee);
 436         }
 437     }
 438
 439     CAmount nAmount             = 0;
 440     CAmount nPayFee             = 0;
 441     CAmount nAfterFee           = 0;
 442     CAmount nChange             = 0;
 443     unsigned int nBytes         = 0;
 444     unsigned int nBytesInputs   = 0;
 445     unsigned int nQuantity      = 0;
 446     bool fWitness               = false;
 447
 448     std::vector<COutPoint> vCoinControl;
 449     std::vector<COutput>   vOutputs;
 450     coinControl->ListSelected(vCoinControl);
 451     model->getOutputs(vCoinControl, vOutputs);
 452
 453     for (const COutput& out : vOutputs) {
 454         // unselect already spent, very unlikely scenario, this could happen
 455         // when selected are spent elsewhere, like rpc or another computer
 456         uint256 txhash = out.tx->GetHash();
 457         COutPoint outpt(txhash, out.i);
 458         if (model->isSpent(outpt))
 459         {
 460             coinControl->UnSelect(outpt);
 461             continue;
 462         }
 463
 464         // Quantity
 465         nQuantity++;
 466
 467         // Amount
 468         nAmount += out.tx->tx->vout[out.i].nValue;
 469
 470         // Bytes
 471         CTxDestination address;
 472         int witnessversion = 0;
 473         std::vector<unsigned char> witnessprogram;
 474         if (out.tx->tx->vout[out.i].scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram))
 475         {
 476             nBytesInputs += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4);
 477             fWitness = true;
 478         }
 479         else if(ExtractDestination(out.tx->tx->vout[out.i].scriptPubKey, address))
 480         {
 481             CPubKey pubkey;
 482             CKeyID *keyid = boost::get<CKeyID>(&address);
 483             if (keyid && model->getPubKey(*keyid, pubkey))
 484             {
 485                 nBytesInputs += (pubkey.IsCompressed() ? 148 : 180);
 486             }
 487             else
 488                 nBytesInputs += 148; // in all error cases, simply assume 148 here
 489         }
 490         else nBytesInputs += 148;
 491     }
 492
 493     // calculation
 494     if (nQuantity > 0)
 495     {
 496         // Bytes
 497         nBytes = nBytesInputs + ((CoinControlDialog::payAmounts.size() > 0 ? CoinControlDialog::payAmounts.size() + 1 : 2) * 34) + 10; // always assume +1 output for change here
 498         if (fWitness)
 499         {
 500             // there is some fudging in these numbers related to the actual virtual transaction size calculation that will keep this estimate from being exact.
 501             // usually, the result will be an overestimate within a couple of satoshis so that the confirmation dialog ends up displaying a slightly smaller fee.
 502             // also, the witness stack size value value is a variable sized integer. usually, the number of stack items will be well under the single byte var int limit.
 503             nBytes += 2; // account for the serialized marker and flag bytes
 504             nBytes += nQuantity; // account for the witness byte that holds the number of stack items for each input.
 505         }
 506
 507         // 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
 508         if (CoinControlDialog::fSubtractFeeFromAmount)
 509             if (nAmount - nPayAmount == 0)
 510                 nBytes -= 34;
 511
 512         // Fee
 513         nPayFee = CWallet::GetMinimumFee(nBytes, nTxConfirmTarget, ::mempool, ::feeEstimator);
 514
 515         if (nPayAmount > 0)
 516         {
 517             nChange = nAmount - nPayAmount;
 518             if (!CoinControlDialog::fSubtractFeeFromAmount)
 519                 nChange -= nPayFee;
 520
 521             // Never create dust outputs; if we would, just add the dust to the fee.
 522             if (nChange > 0 && nChange < MIN_CHANGE)
 523             {
 524                 CTxOut txout(nChange, (CScript)std::vector<unsigned char>(24, 0));
 525                 if (IsDust(txout, ::dustRelayFee))
 526                 {
 527                     if (CoinControlDialog::fSubtractFeeFromAmount) // dust-change will be raised until no dust
 528                         nChange = GetDustThreshold(txout, ::dustRelayFee);
 529                     else
 530                     {
 531                         nPayFee += nChange;
 532                         nChange = 0;
 533                     }
 534                 }
 535             }
 536
 537             if (nChange == 0 && !CoinControlDialog::fSubtractFeeFromAmount)
 538                 nBytes -= 34;
 539         }
 540
 541         // after fee
 542         nAfterFee = std::max<CAmount>(nAmount - nPayFee, 0);
 543     }
 544
 545     // actually update labels
 546     int nDisplayUnit = BitcoinUnits::BTC;
 547     if (model && model->getOptionsModel())
 548         nDisplayUnit = model->getOptionsModel()->getDisplayUnit();
 549
 550     QLabel *l1 = dialog->findChild<QLabel *>("labelCoinControlQuantity");
 551     QLabel *l2 = dialog->findChild<QLabel *>("labelCoinControlAmount");
 552     QLabel *l3 = dialog->findChild<QLabel *>("labelCoinControlFee");
 553     QLabel *l4 = dialog->findChild<QLabel *>("labelCoinControlAfterFee");
 554     QLabel *l5 = dialog->findChild<QLabel *>("labelCoinControlBytes");
 555     QLabel *l7 = dialog->findChild<QLabel *>("labelCoinControlLowOutput");
 556     QLabel *l8 = dialog->findChild<QLabel *>("labelCoinControlChange");
 557
 558     // enable/disable "dust" and "change"
 559     dialog->findChild<QLabel *>("labelCoinControlLowOutputText")->setEnabled(nPayAmount > 0);
 560     dialog->findChild<QLabel *>("labelCoinControlLowOutput")    ->setEnabled(nPayAmount > 0);
 561     dialog->findChild<QLabel *>("labelCoinControlChangeText")   ->setEnabled(nPayAmount > 0);
 562     dialog->findChild<QLabel *>("labelCoinControlChange")       ->setEnabled(nPayAmount > 0);
 563
 564     // stats
 565     l1->setText(QString::number(nQuantity));                                 // Quantity
 566     l2->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nAmount));        // Amount
 567     l3->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nPayFee));        // Fee
 568     l4->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nAfterFee));      // After Fee
 569     l5->setText(((nBytes > 0) ? ASYMP_UTF8 : "") + QString::number(nBytes));        // Bytes
 570     l7->setText(fDust ? tr("yes") : tr("no"));                               // Dust
 571     l8->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nChange));        // Change
 572     if (nPayFee > 0)
 573     {
 574         l3->setText(ASYMP_UTF8 + l3->text());
 575         l4->setText(ASYMP_UTF8 + l4->text());
 576         if (nChange > 0 && !CoinControlDialog::fSubtractFeeFromAmount)
 577             l8->setText(ASYMP_UTF8 + l8->text());
 578     }
 579
 580     // turn label red when dust
 581     l7->setStyleSheet((fDust) ? "color:red;" : "");
 582
 583     // tool tips
 584     QString toolTipDust = tr("This label turns red if any recipient receives an amount smaller than the current dust threshold.");
 585
 586     // how many satoshis the estimated fee can vary per byte we guess wrong
 587     double dFeeVary;
 588     if (payTxFee.GetFeePerK() > 0)
 589         dFeeVary = (double)std::max(CWallet::GetRequiredFee(1000), payTxFee.GetFeePerK()) / 1000;
 590     else {
 591         dFeeVary = (double)std::max(CWallet::GetRequiredFee(1000), ::feeEstimator.estimateSmartFee(nTxConfirmTarget, NULL, ::mempool).GetFeePerK()) / 1000;
 592     }
 593     QString toolTip4 = tr("Can vary +/- %1 satoshi(s) per input.").arg(dFeeVary);
 594
 595     l3->setToolTip(toolTip4);
 596     l4->setToolTip(toolTip4);
 597     l7->setToolTip(toolTipDust);
 598     l8->setToolTip(toolTip4);
 599     dialog->findChild<QLabel *>("labelCoinControlFeeText")      ->setToolTip(l3->toolTip());
 600     dialog->findChild<QLabel *>("labelCoinControlAfterFeeText") ->setToolTip(l4->toolTip());
 601     dialog->findChild<QLabel *>("labelCoinControlBytesText")    ->setToolTip(l5->toolTip());
 602     dialog->findChild<QLabel *>("labelCoinControlLowOutputText")->setToolTip(l7->toolTip());
 603     dialog->findChild<QLabel *>("labelCoinControlChangeText")   ->setToolTip(l8->toolTip());
 604
 605     // Insufficient funds
 606     QLabel *label = dialog->findChild<QLabel *>("labelCoinControlInsuffFunds");
 607     if (label)
 608         label->setVisible(nChange < 0);
 609 }
 610
 611 void CoinControlDialog::updateView()
 612 {
 613     if (!model || !model->getOptionsModel() || !model->getAddressTableModel())
 614         return;
 615
 616     bool treeMode = ui->radioTreeMode->isChecked();
 617
 618     ui->treeWidget->clear();
 619     ui->treeWidget->setEnabled(false); // performance, otherwise updateLabels would be called for every checked checkbox
 620     ui->treeWidget->setAlternatingRowColors(!treeMode);
 621     QFlags<Qt::ItemFlag> flgCheckbox = Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable;
 622     QFlags<Qt::ItemFlag> flgTristate = Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable | Qt::ItemIsTristate;
 623
 624     int nDisplayUnit = model->getOptionsModel()->getDisplayUnit();
 625
 626     std::map<QString, std::vector<COutput> > mapCoins;
 627     model->listCoins(mapCoins);
 628
 629     for (const std::pair<QString, std::vector<COutput>>& coins : mapCoins) {
 630         CCoinControlWidgetItem *itemWalletAddress = new CCoinControlWidgetItem();
 631         itemWalletAddress->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
 632         QString sWalletAddress = coins.first;
 633         QString sWalletLabel = model->getAddressTableModel()->labelForAddress(sWalletAddress);
 634         if (sWalletLabel.isEmpty())
 635             sWalletLabel = tr("(no label)");
 636
 637         if (treeMode)
 638         {
 639             // wallet address
 640             ui->treeWidget->addTopLevelItem(itemWalletAddress);
 641
 642             itemWalletAddress->setFlags(flgTristate);
 643             itemWalletAddress->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
 644
 645             // label
 646             itemWalletAddress->setText(COLUMN_LABEL, sWalletLabel);
 647
 648             // address
 649             itemWalletAddress->setText(COLUMN_ADDRESS, sWalletAddress);
 650         }
 651
 652         CAmount nSum = 0;
 653         int nChildren = 0;
 654         for (const COutput& out : coins.second) {
 655             nSum += out.tx->tx->vout[out.i].nValue;
 656             nChildren++;
 657
 658             CCoinControlWidgetItem *itemOutput;
 659             if (treeMode)    itemOutput = new CCoinControlWidgetItem(itemWalletAddress);
 660             else             itemOutput = new CCoinControlWidgetItem(ui->treeWidget);
 661             itemOutput->setFlags(flgCheckbox);
 662             itemOutput->setCheckState(COLUMN_CHECKBOX,Qt::Unchecked);
 663
 664             // address
 665             CTxDestination outputAddress;
 666             QString sAddress = "";
 667             if(ExtractDestination(out.tx->tx->vout[out.i].scriptPubKey, outputAddress))
 668             {
 669                 sAddress = QString::fromStdString(CBitcoinAddress(outputAddress).ToString());
 670
 671                 // if listMode or change => show bitcoin address. In tree mode, address is not shown again for direct wallet address outputs
 672                 if (!treeMode || (!(sAddress == sWalletAddress)))
 673                     itemOutput->setText(COLUMN_ADDRESS, sAddress);
 674             }
 675
 676             // label
 677             if (!(sAddress == sWalletAddress)) // change
 678             {
 679                 // tooltip from where the change comes from
 680                 itemOutput->setToolTip(COLUMN_LABEL, tr("change from %1 (%2)").arg(sWalletLabel).arg(sWalletAddress));
 681                 itemOutput->setText(COLUMN_LABEL, tr("(change)"));
 682             }
 683             else if (!treeMode)
 684             {
 685                 QString sLabel = model->getAddressTableModel()->labelForAddress(sAddress);
 686                 if (sLabel.isEmpty())
 687                     sLabel = tr("(no label)");
 688                 itemOutput->setText(COLUMN_LABEL, sLabel);
 689             }
 690
 691             // amount
 692             itemOutput->setText(COLUMN_AMOUNT, BitcoinUnits::format(nDisplayUnit, out.tx->tx->vout[out.i].nValue));
 693             itemOutput->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)out.tx->tx->vout[out.i].nValue)); // padding so that sorting works correctly
 694
 695             // date
 696             itemOutput->setText(COLUMN_DATE, GUIUtil::dateTimeStr(out.tx->GetTxTime()));
 697             itemOutput->setData(COLUMN_DATE, Qt::UserRole, QVariant((qlonglong)out.tx->GetTxTime()));
 698
 699             // confirmations
 700             itemOutput->setText(COLUMN_CONFIRMATIONS, QString::number(out.nDepth));
 701             itemOutput->setData(COLUMN_CONFIRMATIONS, Qt::UserRole, QVariant((qlonglong)out.nDepth));
 702
 703             // transaction hash
 704             uint256 txhash = out.tx->GetHash();
 705             itemOutput->setText(COLUMN_TXHASH, QString::fromStdString(txhash.GetHex()));
 706
 707             // vout index
 708             itemOutput->setText(COLUMN_VOUT_INDEX, QString::number(out.i));
 709
 710              // disable locked coins
 711             if (model->isLockedCoin(txhash, out.i))
 712             {
 713                 COutPoint outpt(txhash, out.i);
 714                 coinControl->UnSelect(outpt); // just to be sure
 715                 itemOutput->setDisabled(true);
 716                 itemOutput->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
 717             }
 718
 719             // set checkbox
 720             if (coinControl->IsSelected(COutPoint(txhash, out.i)))
 721                 itemOutput->setCheckState(COLUMN_CHECKBOX, Qt::Checked);
 722         }
 723
 724         // amount
 725         if (treeMode)
 726         {
 727             itemWalletAddress->setText(COLUMN_CHECKBOX, "(" + QString::number(nChildren) + ")");
 728             itemWalletAddress->setText(COLUMN_AMOUNT, BitcoinUnits::format(nDisplayUnit, nSum));
 729             itemWalletAddress->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)nSum));
 730         }
 731     }
 732
 733     // expand all partially selected
 734     if (treeMode)
 735     {
 736         for (int i = 0; i < ui->treeWidget->topLevelItemCount(); i++)
 737             if (ui->treeWidget->topLevelItem(i)->checkState(COLUMN_CHECKBOX) == Qt::PartiallyChecked)
 738                 ui->treeWidget->topLevelItem(i)->setExpanded(true);
 739     }
 740
 741     // sort view
 742     sortView(sortColumn, sortOrder);
 743     ui->treeWidget->setEnabled(true);
 744 }