src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 2011
   5  * The Bitcoin Developers 2011
   6  */
   7 #include "bitcoingui.h"
   8 #include "transactiontablemodel.h"
   9 #include "addressbookpage.h"
  10 #include "sendcoinsdialog.h"
  11 #include "optionsdialog.h"
  12 #include "aboutdialog.h"
  13 #include "clientmodel.h"
  14 #include "walletmodel.h"
  15 #include "editaddressdialog.h"
  16 #include "optionsmodel.h"
  17 #include "transactiondescdialog.h"
  18 #include "addresstablemodel.h"
  19 #include "transactionview.h"
  20 #include "overviewpage.h"
  21 #include "bitcoinunits.h"
  22 #include "guiconstants.h"
  23 #include "askpassphrasedialog.h"
  24 #include "notificator.h"
  25
  26 #ifdef Q_WS_MAC
  27 #include "macdockiconhandler.h"
  28 #endif
  29
  30 #include <QApplication>
  31 #include <QMainWindow>
  32 #include <QMenuBar>
  33 #include <QMenu>
  34 #include <QIcon>
  35 #include <QTabWidget>
  36 #include <QVBoxLayout>
  37 #include <QToolBar>
  38 #include <QStatusBar>
  39 #include <QLabel>
  40 #include <QLineEdit>
  41 #include <QPushButton>
  42 #include <QLocale>
  43 #include <QMessageBox>
  44 #include <QProgressBar>
  45 #include <QStackedWidget>
  46 #include <QDateTime>
  47 #include <QMovie>
  48
  49 #include <QDragEnterEvent>
  50 #include <QUrl>
  51
  52 #include <iostream>
  53
  54 BitcoinGUI::BitcoinGUI(QWidget *parent):
  55     QMainWindow(parent),
  56     clientModel(0),
  57     walletModel(0),
  58     encryptWalletAction(0),
  59     changePassphraseAction(0),
  60     aboutQtAction(0),
  61     trayIcon(0),
  62     notificator(0)
  63 {
  64     resize(850, 550);
  65     setWindowTitle(tr("Bitcoin Wallet"));
  66 #ifndef Q_WS_MAC
  67     setWindowIcon(QIcon(":icons/bitcoin"));
  68 #else
  69     setUnifiedTitleAndToolBarOnMac(true);
  70     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  71 #endif
  72     // Accept D&D of URIs
  73     setAcceptDrops(true);
  74
  75     // Create actions for the toolbar, menu bar and tray/dock icon
  76     createActions();
  77
  78     // Create application menu bar
  79     createMenuBar();
  80
  81     // Create the toolbars
  82     createToolBars();
  83
  84     // Create the tray icon (or setup the dock icon)
  85     createTrayIcon();
  86
  87     // Create tabs
  88     overviewPage = new OverviewPage();
  89
  90     transactionsPage = new QWidget(this);
  91     QVBoxLayout *vbox = new QVBoxLayout();
  92     transactionView = new TransactionView(this);
  93     vbox->addWidget(transactionView);
  94     transactionsPage->setLayout(vbox);
  95
  96     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
  97
  98     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
  99
 100     sendCoinsPage = new SendCoinsDialog(this);
 101
 102     centralWidget = new QStackedWidget(this);
 103     centralWidget->addWidget(overviewPage);
 104     centralWidget->addWidget(transactionsPage);
 105     centralWidget->addWidget(addressBookPage);
 106     centralWidget->addWidget(receiveCoinsPage);
 107     centralWidget->addWidget(sendCoinsPage);
 108     setCentralWidget(centralWidget);
 109
 110     // Create status bar
 111     statusBar();
 112
 113     // Status bar notification icons
 114     QFrame *frameBlocks = new QFrame();
 115     frameBlocks->setContentsMargins(0,0,0,0);
 116     frameBlocks->setMinimumWidth(56);
 117     frameBlocks->setMaximumWidth(56);
 118     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 119     frameBlocksLayout->setContentsMargins(3,0,3,0);
 120     frameBlocksLayout->setSpacing(3);
 121     labelEncryptionIcon = new QLabel();
 122     labelConnectionsIcon = new QLabel();
 123     labelBlocksIcon = new QLabel();
 124     frameBlocksLayout->addStretch();
 125     frameBlocksLayout->addWidget(labelEncryptionIcon);
 126     frameBlocksLayout->addStretch();
 127     frameBlocksLayout->addWidget(labelConnectionsIcon);
 128     frameBlocksLayout->addStretch();
 129     frameBlocksLayout->addWidget(labelBlocksIcon);
 130     frameBlocksLayout->addStretch();
 131
 132     // Progress bar for blocks download
 133     progressBarLabel = new QLabel(tr("Synchronizing with network..."));
 134     progressBarLabel->setVisible(false);
 135     progressBar = new QProgressBar();
 136     progressBar->setToolTip(tr("Block chain synchronization in progress"));
 137     progressBar->setVisible(false);
 138
 139     statusBar()->addWidget(progressBarLabel);
 140     statusBar()->addWidget(progressBar);
 141     statusBar()->addPermanentWidget(frameBlocks);
 142
 143     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 144
 145     // Clicking on a transaction on the overview page simply sends you to transaction history page
 146     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 147
 148     // Doubleclicking on a transaction on the transaction history page shows details
 149     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 150
 151     gotoOverviewPage();
 152 }
 153
 154 BitcoinGUI::~BitcoinGUI()
 155 {
 156 #ifdef Q_WS_MAC
 157     delete appMenuBar;
 158 #endif
 159 }
 160
 161 void BitcoinGUI::createActions()
 162 {
 163     QActionGroup *tabGroup = new QActionGroup(this);
 164
 165     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 166     overviewAction->setToolTip(tr("Show general overview of wallet"));
 167     overviewAction->setCheckable(true);
 168     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 169     tabGroup->addAction(overviewAction);
 170
 171     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 172     historyAction->setToolTip(tr("Browse transaction history"));
 173     historyAction->setCheckable(true);
 174     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 175     tabGroup->addAction(historyAction);
 176
 177     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 178     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 179     addressBookAction->setCheckable(true);
 180     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 181     tabGroup->addAction(addressBookAction);
 182
 183     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 184     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 185     receiveCoinsAction->setCheckable(true);
 186     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 187     tabGroup->addAction(receiveCoinsAction);
 188
 189     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 190     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 191     sendCoinsAction->setCheckable(true);
 192     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 193     tabGroup->addAction(sendCoinsAction);
 194
 195     connect(overviewAction, SIGNAL(triggered()), this, SLOT(show()));
 196     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 197     connect(historyAction, SIGNAL(triggered()), this, SLOT(show()));
 198     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 199     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(show()));
 200     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 201     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(show()));
 202     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 203     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(show()));
 204     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 205
 206     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 207     quitAction->setToolTip(tr("Quit application"));
 208     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 209     quitAction->setMenuRole(QAction::QuitRole);
 210     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 211     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 212     aboutAction->setMenuRole(QAction::AboutRole);
 213     aboutQtAction = new QAction(tr("About &Qt"), this);
 214     aboutQtAction->setToolTip(tr("Show information about Qt"));
 215     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 216     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 217     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 218     optionsAction->setMenuRole(QAction::PreferencesRole);
 219     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 220     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 221     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 222     exportAction->setToolTip(tr("Export the current view to a file"));
 223     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 224     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 225     encryptWalletAction->setCheckable(true);
 226     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 227     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 228
 229     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 230     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 231     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 232     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 233     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 234     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 235     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 236 }
 237
 238 void BitcoinGUI::createMenuBar()
 239 {
 240 #ifdef Q_WS_MAC
 241     // Create a decoupled menu bar on Mac which stays even if the window is closed
 242     appMenuBar = new QMenuBar();
 243 #else
 244     // Get the main window's menu bar on other platforms
 245     appMenuBar = menuBar();
 246 #endif
 247
 248     // Configure the menus
 249     QMenu *file = appMenuBar->addMenu(tr("&File"));
 250     file->addAction(quitAction);
 251
 252     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 253     settings->addAction(encryptWalletAction);
 254     settings->addAction(changePassphraseAction);
 255     settings->addSeparator();
 256     settings->addAction(optionsAction);
 257
 258     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 259     help->addAction(aboutAction);
 260     help->addAction(aboutQtAction);
 261 }
 262
 263 void BitcoinGUI::createToolBars()
 264 {
 265     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 266     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 267     toolbar->addAction(overviewAction);
 268     toolbar->addAction(sendCoinsAction);
 269     toolbar->addAction(receiveCoinsAction);
 270     toolbar->addAction(historyAction);
 271     toolbar->addAction(addressBookAction);
 272
 273     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 274     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 275     toolbar2->addAction(exportAction);
 276 }
 277
 278 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 279 {
 280     this->clientModel = clientModel;
 281     if(clientModel)
 282     {
 283         if(clientModel->isTestNet())
 284         {
 285             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 286             setWindowTitle(title_testnet);
 287 #ifndef Q_WS_MAC
 288             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 289 #else
 290             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 291 #endif
 292             if(trayIcon)
 293             {
 294                 trayIcon->setToolTip(title_testnet);
 295                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 296             }
 297         }
 298
 299         // Keep up to date with client
 300         setNumConnections(clientModel->getNumConnections());
 301         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 302
 303         setNumBlocks(clientModel->getNumBlocks());
 304         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 305
 306         // Report errors from network/worker thread
 307         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 308     }
 309 }
 310
 311 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 312 {
 313     this->walletModel = walletModel;
 314     if(walletModel)
 315     {
 316         // Report errors from wallet thread
 317         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 318
 319         // Put transaction list in tabs
 320         transactionView->setModel(walletModel);
 321
 322         overviewPage->setModel(walletModel);
 323         addressBookPage->setModel(walletModel->getAddressTableModel());
 324         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 325         sendCoinsPage->setModel(walletModel);
 326
 327         setEncryptionStatus(walletModel->getEncryptionStatus());
 328         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 329
 330         // Balloon popup for new transaction
 331         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 332                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 333
 334         // Ask for passphrase if needed
 335         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 336     }
 337 }
 338
 339 void BitcoinGUI::createTrayIcon()
 340 {
 341     QMenu *trayIconMenu;
 342 #ifndef Q_WS_MAC
 343     trayIcon = new QSystemTrayIcon(this);
 344     trayIconMenu = new QMenu(this);
 345     trayIcon->setContextMenu(trayIconMenu);
 346     trayIcon->setToolTip("Bitcoin client");
 347     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 348     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 349             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 350     trayIcon->show();
 351 #else
 352     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 353     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 354     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 355     trayIconMenu = dockIconHandler->dockMenu();
 356 #endif
 357
 358     // Configuration of the tray icon (or dock icon) icon menu
 359     trayIconMenu->addAction(openBitcoinAction);
 360     trayIconMenu->addSeparator();
 361     trayIconMenu->addAction(receiveCoinsAction);
 362     trayIconMenu->addAction(sendCoinsAction);
 363     trayIconMenu->addSeparator();
 364     trayIconMenu->addAction(optionsAction);
 365 #ifndef Q_WS_MAC // This is built-in on Mac
 366     trayIconMenu->addSeparator();
 367     trayIconMenu->addAction(quitAction);
 368 #endif
 369
 370     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 371 }
 372
 373 #ifndef Q_WS_MAC
 374 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 375 {
 376     if(reason == QSystemTrayIcon::Trigger)
 377     {
 378         // Click on system tray icon triggers "open bitcoin"
 379         openBitcoinAction->trigger();
 380     }
 381
 382 }
 383 #endif
 384
 385 void BitcoinGUI::optionsClicked()
 386 {
 387     if(!clientModel || !clientModel->getOptionsModel())
 388         return;
 389     OptionsDialog dlg;
 390     dlg.setModel(clientModel->getOptionsModel());
 391     dlg.exec();
 392 }
 393
 394 void BitcoinGUI::aboutClicked()
 395 {
 396     AboutDialog dlg;
 397     dlg.setModel(clientModel);
 398     dlg.exec();
 399 }
 400
 401 void BitcoinGUI::setNumConnections(int count)
 402 {
 403     QString icon;
 404     switch(count)
 405     {
 406     case 0: icon = ":/icons/connect_0"; break;
 407     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 408     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 409     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 410     default: icon = ":/icons/connect_4"; break;
 411     }
 412     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 413     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 414 }
 415
 416 void BitcoinGUI::setNumBlocks(int count)
 417 {
 418     if(!clientModel)
 419         return;
 420     int total = clientModel->getNumBlocksOfPeers();
 421     QString tooltip;
 422
 423     if(count < total)
 424     {
 425         if (clientModel->getStatusBarWarnings() == "")
 426         {
 427             progressBarLabel->setVisible(true);
 428             progressBarLabel->setText(tr("Synchronizing with network..."));
 429             progressBar->setVisible(true);
 430             progressBar->setMaximum(total);
 431             progressBar->setValue(count);
 432         }
 433         else
 434         {
 435             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 436             progressBarLabel->setVisible(true);
 437             progressBar->setVisible(false);
 438         }
 439         tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
 440     }
 441     else
 442     {
 443         if (clientModel->getStatusBarWarnings() == "")
 444             progressBarLabel->setVisible(false);
 445         else
 446         {
 447             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 448             progressBarLabel->setVisible(true);
 449         }
 450         progressBar->setVisible(false);
 451         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 452     }
 453
 454     QDateTime now = QDateTime::currentDateTime();
 455     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 456     int secs = lastBlockDate.secsTo(now);
 457     QString text;
 458
 459     // Represent time from last generated block in human readable text
 460     if(secs < 60)
 461     {
 462         text = tr("%n second(s) ago","",secs);
 463     }
 464     else if(secs < 60*60)
 465     {
 466         text = tr("%n minute(s) ago","",secs/60);
 467     }
 468     else if(secs < 24*60*60)
 469     {
 470         text = tr("%n hour(s) ago","",secs/(60*60));
 471     }
 472     else
 473     {
 474         text = tr("%n day(s) ago","",secs/(60*60*24));
 475     }
 476
 477     // Set icon state: spinning if catching up, tick otherwise
 478     if(secs < 30*60)
 479     {
 480         tooltip = tr("Up to date") + QString("\n") + tooltip;
 481         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 482     }
 483     else
 484     {
 485         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 486         labelBlocksIcon->setMovie(syncIconMovie);
 487         syncIconMovie->start();
 488     }
 489
 490     tooltip += QString("\n");
 491     tooltip += tr("Last received block was generated %1.").arg(text);
 492
 493     labelBlocksIcon->setToolTip(tooltip);
 494     progressBarLabel->setToolTip(tooltip);
 495     progressBar->setToolTip(tooltip);
 496 }
 497
 498 void BitcoinGUI::refreshStatusBar()
 499 {
 500     /* Might display multiple times in the case of multiple alerts
 501     static QString prevStatusBar;
 502     QString newStatusBar = clientModel->getStatusBarWarnings();
 503     if (prevStatusBar != newStatusBar)
 504     {
 505         prevStatusBar = newStatusBar;
 506         error(tr("Network Alert"), newStatusBar);
 507     }*/
 508     setNumBlocks(clientModel->getNumBlocks());
 509 }
 510
 511 void BitcoinGUI::error(const QString &title, const QString &message)
 512 {
 513     // Report errors from network/worker thread
 514     notificator->notify(Notificator::Critical, title, message);
 515 }
 516
 517 void BitcoinGUI::changeEvent(QEvent *e)
 518 {
 519 #ifndef Q_WS_MAC // Ignored on Mac
 520     if(e->type() == QEvent::WindowStateChange)
 521     {
 522         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 523         {
 524             if(isMinimized())
 525             {
 526                 hide();
 527                 e->ignore();
 528             }
 529             else
 530             {
 531                 show();
 532                 e->accept();
 533             }
 534         }
 535     }
 536 #endif
 537     QMainWindow::changeEvent(e);
 538 }
 539
 540 void BitcoinGUI::closeEvent(QCloseEvent *event)
 541 {
 542     if(clientModel)
 543     {
 544 #ifndef Q_WS_MAC // Ignored on Mac
 545         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 546            !clientModel->getOptionsModel()->getMinimizeOnClose())
 547         {
 548             qApp->quit();
 549         }
 550 #endif
 551     }
 552     QMainWindow::closeEvent(event);
 553 }
 554
 555 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 556 {
 557     QString strMessage =
 558         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 559           "which goes to the nodes that process your transaction and helps to support the network.  "
 560           "Do you want to pay the fee?").arg(
 561                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 562     QMessageBox::StandardButton retval = QMessageBox::question(
 563           this, tr("Sending..."), strMessage,
 564           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 565     *payFee = (retval == QMessageBox::Yes);
 566 }
 567
 568 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 569 {
 570     if(!walletModel || !clientModel)
 571         return;
 572     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 573     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 574                     .data(Qt::EditRole).toULongLong();
 575     if(!clientModel->inInitialBlockDownload())
 576     {
 577         // On new transaction, make an info balloon
 578         // Unless the initial block download is in progress, to prevent balloon-spam
 579         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 580                         .data().toString();
 581         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 582                         .data().toString();
 583         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 584                         .data().toString();
 585         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 586                             TransactionTableModel::ToAddress, parent)
 587                         .data(Qt::DecorationRole));
 588
 589         notificator->notify(Notificator::Information,
 590                             (amount)<0 ? tr("Sent transaction") :
 591                                          tr("Incoming transaction"),
 592                               tr("Date: %1\n"
 593                                  "Amount: %2\n"
 594                                  "Type: %3\n"
 595                                  "Address: %4\n")
 596                               .arg(date)
 597                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 598                               .arg(type)
 599                               .arg(address), icon);
 600     }
 601 }
 602
 603 void BitcoinGUI::gotoOverviewPage()
 604 {
 605     overviewAction->setChecked(true);
 606     centralWidget->setCurrentWidget(overviewPage);
 607
 608     exportAction->setEnabled(false);
 609     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 610 }
 611
 612 void BitcoinGUI::gotoHistoryPage()
 613 {
 614     historyAction->setChecked(true);
 615     centralWidget->setCurrentWidget(transactionsPage);
 616
 617     exportAction->setEnabled(true);
 618     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 619     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 620 }
 621
 622 void BitcoinGUI::gotoAddressBookPage()
 623 {
 624     addressBookAction->setChecked(true);
 625     centralWidget->setCurrentWidget(addressBookPage);
 626
 627     exportAction->setEnabled(true);
 628     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 629     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 630 }
 631
 632 void BitcoinGUI::gotoReceiveCoinsPage()
 633 {
 634     receiveCoinsAction->setChecked(true);
 635     centralWidget->setCurrentWidget(receiveCoinsPage);
 636
 637     exportAction->setEnabled(true);
 638     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 639     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 640 }
 641
 642 void BitcoinGUI::gotoSendCoinsPage()
 643 {
 644     sendCoinsAction->setChecked(true);
 645     centralWidget->setCurrentWidget(sendCoinsPage);
 646
 647     exportAction->setEnabled(false);
 648     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 649 }
 650
 651 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 652 {
 653     // Accept only URLs
 654     if(event->mimeData()->hasUrls())
 655         event->acceptProposedAction();
 656 }
 657
 658 void BitcoinGUI::dropEvent(QDropEvent *event)
 659 {
 660     if(event->mimeData()->hasUrls())
 661     {
 662         gotoSendCoinsPage();
 663         QList<QUrl> urls = event->mimeData()->urls();
 664         foreach(const QUrl &url, urls)
 665         {
 666             sendCoinsPage->handleURL(&url);
 667         }
 668     }
 669
 670     event->acceptProposedAction();
 671 }
 672
 673 void BitcoinGUI::handleURL(QString strURL)
 674 {
 675     gotoSendCoinsPage();
 676     QUrl url = QUrl(strURL);
 677     sendCoinsPage->handleURL(&url);
 678 }
 679
 680 void BitcoinGUI::setEncryptionStatus(int status)
 681 {
 682     switch(status)
 683     {
 684     case WalletModel::Unencrypted:
 685         labelEncryptionIcon->hide();
 686         encryptWalletAction->setChecked(false);
 687         changePassphraseAction->setEnabled(false);
 688         encryptWalletAction->setEnabled(true);
 689         break;
 690     case WalletModel::Unlocked:
 691         labelEncryptionIcon->show();
 692         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 693         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 694         encryptWalletAction->setChecked(true);
 695         changePassphraseAction->setEnabled(true);
 696         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 697         break;
 698     case WalletModel::Locked:
 699         labelEncryptionIcon->show();
 700         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 701         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 702         encryptWalletAction->setChecked(true);
 703         changePassphraseAction->setEnabled(true);
 704         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 705         break;
 706     }
 707 }
 708
 709 void BitcoinGUI::encryptWallet(bool status)
 710 {
 711     if(!walletModel)
 712         return;
 713     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 714                                      AskPassphraseDialog::Decrypt, this);
 715     dlg.setModel(walletModel);
 716     dlg.exec();
 717
 718     setEncryptionStatus(walletModel->getEncryptionStatus());
 719 }
 720
 721 void BitcoinGUI::changePassphrase()
 722 {
 723     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 724     dlg.setModel(walletModel);
 725     dlg.exec();
 726 }
 727
 728 void BitcoinGUI::unlockWallet()
 729 {
 730     if(!walletModel)
 731         return;
 732     // Unlock wallet when requested by wallet model
 733     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 734     {
 735         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 736         dlg.setModel(walletModel);
 737         dlg.exec();
 738     }
 739 }