src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 2011
   5  * The Bitcoin Developers 2011
   6  */
   7
   8 #include "checkpoints.h"
   9
  10 #include "bitcoingui.h"
  11 #include "transactiontablemodel.h"
  12 #include "addressbookpage.h"
  13 #include "sendcoinsdialog.h"
  14 #include "optionsdialog.h"
  15 #include "aboutdialog.h"
  16 #include "clientmodel.h"
  17 #include "walletmodel.h"
  18 #include "editaddressdialog.h"
  19 #include "optionsmodel.h"
  20 #include "transactiondescdialog.h"
  21 #include "addresstablemodel.h"
  22 #include "transactionview.h"
  23 #include "overviewpage.h"
  24 #include "bitcoinunits.h"
  25 #include "guiconstants.h"
  26 #include "askpassphrasedialog.h"
  27 #include "notificator.h"
  28
  29 #ifdef Q_WS_MAC
  30 #include "macdockiconhandler.h"
  31 #endif
  32
  33 #include <QApplication>
  34 #include <QMainWindow>
  35 #include <QMenuBar>
  36 #include <QMenu>
  37 #include <QIcon>
  38 #include <QTabWidget>
  39 #include <QVBoxLayout>
  40 #include <QToolBar>
  41 #include <QStatusBar>
  42 #include <QLabel>
  43 #include <QLineEdit>
  44 #include <QPushButton>
  45 #include <QLocale>
  46 #include <QMessageBox>
  47 #include <QProgressBar>
  48 #include <QStackedWidget>
  49 #include <QDateTime>
  50 #include <QMovie>
  51 #include <QTimer>
  52
  53 #include <QDragEnterEvent>
  54 #include <QUrl>
  55
  56 #include <iostream>
  57
  58 BitcoinGUI::BitcoinGUI(QWidget *parent):
  59     QMainWindow(parent),
  60     clientModel(0),
  61     walletModel(0),
  62     encryptWalletAction(0),
  63     changePassphraseAction(0),
  64     aboutQtAction(0),
  65     trayIcon(0),
  66     notificator(0)
  67 {
  68     resize(850, 550);
  69     setWindowTitle(tr("Bitcoin Wallet"));
  70 #ifndef Q_WS_MAC
  71     setWindowIcon(QIcon(":icons/bitcoin"));
  72 #else
  73     setUnifiedTitleAndToolBarOnMac(true);
  74     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  75 #endif
  76     // Accept D&D of URIs
  77     setAcceptDrops(true);
  78
  79     // Create actions for the toolbar, menu bar and tray/dock icon
  80     createActions();
  81
  82     // Create application menu bar
  83     createMenuBar();
  84
  85     // Create the toolbars
  86     createToolBars();
  87
  88     // Create the tray icon (or setup the dock icon)
  89     createTrayIcon();
  90
  91     // Create tabs
  92     overviewPage = new OverviewPage();
  93
  94     transactionsPage = new QWidget(this);
  95     QVBoxLayout *vbox = new QVBoxLayout();
  96     transactionView = new TransactionView(this);
  97     vbox->addWidget(transactionView);
  98     transactionsPage->setLayout(vbox);
  99
 100     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 101
 102     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 103
 104     sendCoinsPage = new SendCoinsDialog(this);
 105
 106     centralWidget = new QStackedWidget(this);
 107     centralWidget->addWidget(overviewPage);
 108     centralWidget->addWidget(transactionsPage);
 109     centralWidget->addWidget(addressBookPage);
 110     centralWidget->addWidget(receiveCoinsPage);
 111     centralWidget->addWidget(sendCoinsPage);
 112     setCentralWidget(centralWidget);
 113
 114     // Create status bar
 115     statusBar();
 116
 117     // Status bar notification icons
 118     QFrame *frameBlocks = new QFrame();
 119     //frameBlocks->setFrameStyle(QFrame::Panel | QFrame::Sunken);
 120     frameBlocks->setContentsMargins(0,0,0,0);
 121     frameBlocks->setMinimumWidth(56);
 122     frameBlocks->setMaximumWidth(56);
 123     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 124     frameBlocksLayout->setContentsMargins(3,0,3,0);
 125     frameBlocksLayout->setSpacing(3);
 126     labelEncryptionIcon = new QLabel();
 127     labelConnectionsIcon = new QLabel();
 128     labelBlocksIcon = new QLabel();
 129     frameBlocksLayout->addStretch();
 130     frameBlocksLayout->addWidget(labelEncryptionIcon);
 131     frameBlocksLayout->addStretch();
 132     frameBlocksLayout->addWidget(labelConnectionsIcon);
 133     frameBlocksLayout->addStretch();
 134     frameBlocksLayout->addWidget(labelBlocksIcon);
 135     frameBlocksLayout->addStretch();
 136
 137     // Progress bar for blocks download
 138     progressBarLabel = new QLabel(tr("Synchronizing with network..."));
 139     progressBarLabel->setVisible(false);
 140     progressBar = new QProgressBar();
 141     progressBar->setToolTip(tr("Block chain synchronization in progress"));
 142     progressBar->setVisible(false);
 143
 144     statusBar()->addWidget(progressBarLabel);
 145     statusBar()->addWidget(progressBar);
 146     statusBar()->addPermanentWidget(frameBlocks);
 147
 148     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 149
 150     // Clicking on a transaction on the overview page simply sends you to transaction history page
 151     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 152
 153     // Doubleclicking on a transaction on the transaction history page shows details
 154     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 155
 156     gotoOverviewPage();
 157 }
 158
 159 BitcoinGUI::~BitcoinGUI()
 160 {
 161 #ifdef Q_WS_MAC
 162     delete appMenuBar;
 163 #endif
 164 }
 165
 166 void BitcoinGUI::createActions()
 167 {
 168     QActionGroup *tabGroup = new QActionGroup(this);
 169
 170     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 171     overviewAction->setToolTip(tr("Show general overview of wallet"));
 172     overviewAction->setCheckable(true);
 173     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 174     tabGroup->addAction(overviewAction);
 175
 176     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 177     historyAction->setToolTip(tr("Browse transaction history"));
 178     historyAction->setCheckable(true);
 179     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 180     tabGroup->addAction(historyAction);
 181
 182     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 183     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 184     addressBookAction->setCheckable(true);
 185     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 186     tabGroup->addAction(addressBookAction);
 187
 188     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 189     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 190     receiveCoinsAction->setCheckable(true);
 191     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 192     tabGroup->addAction(receiveCoinsAction);
 193
 194     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 195     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 196     sendCoinsAction->setCheckable(true);
 197     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 198     tabGroup->addAction(sendCoinsAction);
 199
 200     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 201     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 202     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 203     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 204     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 205     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 206     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 207     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 208     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 209     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 210
 211     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 212     quitAction->setToolTip(tr("Quit application"));
 213     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 214     quitAction->setMenuRole(QAction::QuitRole);
 215     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 216     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 217     aboutAction->setMenuRole(QAction::AboutRole);
 218     aboutQtAction = new QAction(tr("About &Qt"), this);
 219     aboutQtAction->setToolTip(tr("Show information about Qt"));
 220     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 221     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 222     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 223     optionsAction->setMenuRole(QAction::PreferencesRole);
 224     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 225     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 226     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 227     exportAction->setToolTip(tr("Export the current view to a file"));
 228     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 229     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 230     encryptWalletAction->setCheckable(true);
 231     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 232     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 233
 234     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 235     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 236     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 237     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 238     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 239     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 240     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 241 }
 242
 243 void BitcoinGUI::createMenuBar()
 244 {
 245 #ifdef Q_WS_MAC
 246     // Create a decoupled menu bar on Mac which stays even if the window is closed
 247     appMenuBar = new QMenuBar();
 248 #else
 249     // Get the main window's menu bar on other platforms
 250     appMenuBar = menuBar();
 251 #endif
 252
 253     // Configure the menus
 254     QMenu *file = appMenuBar->addMenu(tr("&File"));
 255     file->addAction(quitAction);
 256
 257     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 258     settings->addAction(encryptWalletAction);
 259     settings->addAction(changePassphraseAction);
 260     settings->addSeparator();
 261     settings->addAction(optionsAction);
 262
 263     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 264     help->addAction(aboutAction);
 265     help->addAction(aboutQtAction);
 266 }
 267
 268 void BitcoinGUI::createToolBars()
 269 {
 270     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 271     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 272     toolbar->addAction(overviewAction);
 273     toolbar->addAction(sendCoinsAction);
 274     toolbar->addAction(receiveCoinsAction);
 275     toolbar->addAction(historyAction);
 276     toolbar->addAction(addressBookAction);
 277
 278     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 279     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 280     toolbar2->addAction(exportAction);
 281 }
 282
 283 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 284 {
 285     this->clientModel = clientModel;
 286     if(clientModel)
 287     {
 288         if(clientModel->isTestNet())
 289         {
 290             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 291             setWindowTitle(title_testnet);
 292 #ifndef Q_WS_MAC
 293             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 294 #else
 295             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 296 #endif
 297             if(trayIcon)
 298             {
 299                 trayIcon->setToolTip(title_testnet);
 300                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 301             }
 302         }
 303
 304         // Keep up to date with client
 305         setNumConnections(clientModel->getNumConnections());
 306         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 307
 308         setNumBlocks(clientModel->getNumBlocks());
 309         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 310
 311         // Report errors from network/worker thread
 312         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 313     }
 314 }
 315
 316 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 317 {
 318     this->walletModel = walletModel;
 319     if(walletModel)
 320     {
 321         // Report errors from wallet thread
 322         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 323
 324         // Put transaction list in tabs
 325         transactionView->setModel(walletModel);
 326
 327         overviewPage->setModel(walletModel);
 328         addressBookPage->setModel(walletModel->getAddressTableModel());
 329         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 330         sendCoinsPage->setModel(walletModel);
 331
 332         setEncryptionStatus(walletModel->getEncryptionStatus());
 333         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 334
 335         // Balloon popup for new transaction
 336         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 337                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 338
 339         // Ask for passphrase if needed
 340         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 341     }
 342 }
 343
 344 void BitcoinGUI::createTrayIcon()
 345 {
 346     QMenu *trayIconMenu;
 347 #ifndef Q_WS_MAC
 348     trayIcon = new QSystemTrayIcon(this);
 349     trayIconMenu = new QMenu(this);
 350     trayIcon->setContextMenu(trayIconMenu);
 351     trayIcon->setToolTip("Bitcoin client");
 352     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 353     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 354             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 355     trayIcon->show();
 356 #else
 357     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 358     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 359     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 360     trayIconMenu = dockIconHandler->dockMenu();
 361 #endif
 362
 363     // Configuration of the tray icon (or dock icon) icon menu
 364     trayIconMenu->addAction(openBitcoinAction);
 365     trayIconMenu->addSeparator();
 366     trayIconMenu->addAction(receiveCoinsAction);
 367     trayIconMenu->addAction(sendCoinsAction);
 368     trayIconMenu->addSeparator();
 369     trayIconMenu->addAction(optionsAction);
 370 #ifndef Q_WS_MAC // This is built-in on Mac
 371     trayIconMenu->addSeparator();
 372     trayIconMenu->addAction(quitAction);
 373 #endif
 374
 375     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 376 }
 377
 378 #ifndef Q_WS_MAC
 379 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 380 {
 381     if(reason == QSystemTrayIcon::Trigger)
 382     {
 383         // Click on system tray icon triggers "open bitcoin"
 384         openBitcoinAction->trigger();
 385     }
 386 }
 387 #endif
 388
 389 void BitcoinGUI::optionsClicked()
 390 {
 391     if(!clientModel || !clientModel->getOptionsModel())
 392         return;
 393     OptionsDialog dlg;
 394     dlg.setModel(clientModel->getOptionsModel());
 395     dlg.exec();
 396 }
 397
 398 void BitcoinGUI::aboutClicked()
 399 {
 400     AboutDialog dlg;
 401     dlg.setModel(clientModel);
 402     dlg.exec();
 403 }
 404
 405 void BitcoinGUI::setNumConnections(int count)
 406 {
 407     QString icon;
 408     switch(count)
 409     {
 410     case 0: icon = ":/icons/connect_0"; break;
 411     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 412     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 413     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 414     default: icon = ":/icons/connect_4"; break;
 415     }
 416     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 417     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 418 }
 419
 420 void BitcoinGUI::setNumBlocks(int count)
 421 {
 422     if(!clientModel)
 423         return;
 424     int total = clientModel->getNumBlocksOfPeers();
 425     QString tooltip;
 426
 427     if(count < total)
 428     {
 429         if (clientModel->getStatusBarWarnings() == "")
 430         {
 431             progressBarLabel->setVisible(true);
 432             progressBarLabel->setText(tr("Synchronizing with network..."));
 433             progressBar->setVisible(true);
 434             progressBar->setMaximum(total);
 435             progressBar->setValue(count);
 436         }
 437         else
 438         {
 439             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 440             progressBarLabel->setVisible(true);
 441             progressBar->setVisible(false);
 442         }
 443         tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
 444     }
 445     else
 446     {
 447         if (clientModel->getStatusBarWarnings() == "")
 448             progressBarLabel->setVisible(false);
 449         else
 450         {
 451             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 452             progressBarLabel->setVisible(true);
 453         }
 454         progressBar->setVisible(false);
 455         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 456     }
 457
 458     QDateTime now = QDateTime::currentDateTime();
 459     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 460     int secs = lastBlockDate.secsTo(now);
 461     QString text;
 462
 463     // Represent time from last generated block in human readable text
 464     if(secs <= 0)
 465     {
 466         // Fully up to date. Leave text empty.
 467     }
 468     else if(secs < 60)
 469     {
 470         text = tr("%n second(s) ago","",secs);
 471     }
 472     else if(secs < 60*60)
 473     {
 474         text = tr("%n minute(s) ago","",secs/60);
 475     }
 476     else if(secs < 24*60*60)
 477     {
 478         text = tr("%n hour(s) ago","",secs/(60*60));
 479     }
 480     else
 481     {
 482         text = tr("%n day(s) ago","",secs/(60*60*24));
 483     }
 484
 485     // Set icon state: spinning if catching up, tick otherwise
 486     if(secs < 90*60 && count >= Checkpoints::GetTotalBlocksEstimate())
 487     {
 488         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 489         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 490     }
 491     else
 492     {
 493         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 494         labelBlocksIcon->setMovie(syncIconMovie);
 495         syncIconMovie->start();
 496     }
 497
 498     if(!text.isEmpty())
 499     {
 500         tooltip += QString("\n");
 501         tooltip += tr("Last received block was generated %1.").arg(text);
 502     }
 503
 504     labelBlocksIcon->setToolTip(tooltip);
 505     progressBarLabel->setToolTip(tooltip);
 506     progressBar->setToolTip(tooltip);
 507 }
 508
 509 void BitcoinGUI::refreshStatusBar()
 510 {
 511     /* Might display multiple times in the case of multiple alerts
 512     static QString prevStatusBar;
 513     QString newStatusBar = clientModel->getStatusBarWarnings();
 514     if (prevStatusBar != newStatusBar)
 515     {
 516         prevStatusBar = newStatusBar;
 517         error(tr("Network Alert"), newStatusBar);
 518     }*/
 519     setNumBlocks(clientModel->getNumBlocks());
 520 }
 521
 522 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 523 {
 524     // Report errors from network/worker thread
 525     if (modal)
 526     {
 527         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 528     } else {
 529         notificator->notify(Notificator::Critical, title, message);
 530     }
 531 }
 532
 533 void BitcoinGUI::changeEvent(QEvent *e)
 534 {
 535     QMainWindow::changeEvent(e);
 536 #ifndef Q_WS_MAC // Ignored on Mac
 537     if(e->type() == QEvent::WindowStateChange)
 538     {
 539         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 540         {
 541             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 542             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 543             {
 544                 QTimer::singleShot(0, this, SLOT(hide()));
 545                 e->ignore();
 546             }
 547         }
 548     }
 549 #endif
 550 }
 551
 552 void BitcoinGUI::closeEvent(QCloseEvent *event)
 553 {
 554     if(clientModel)
 555     {
 556 #ifndef Q_WS_MAC // Ignored on Mac
 557         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 558            !clientModel->getOptionsModel()->getMinimizeOnClose())
 559         {
 560             qApp->quit();
 561         }
 562 #endif
 563     }
 564     QMainWindow::closeEvent(event);
 565 }
 566
 567 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 568 {
 569     QString strMessage =
 570         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 571           "which goes to the nodes that process your transaction and helps to support the network.  "
 572           "Do you want to pay the fee?").arg(
 573                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 574     QMessageBox::StandardButton retval = QMessageBox::question(
 575           this, tr("Sending..."), strMessage,
 576           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 577     *payFee = (retval == QMessageBox::Yes);
 578 }
 579
 580 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 581 {
 582     if(!walletModel || !clientModel)
 583         return;
 584     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 585     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 586                     .data(Qt::EditRole).toULongLong();
 587     if(!clientModel->inInitialBlockDownload())
 588     {
 589         // On new transaction, make an info balloon
 590         // Unless the initial block download is in progress, to prevent balloon-spam
 591         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 592                         .data().toString();
 593         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 594                         .data().toString();
 595         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 596                         .data().toString();
 597         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 598                             TransactionTableModel::ToAddress, parent)
 599                         .data(Qt::DecorationRole));
 600
 601         notificator->notify(Notificator::Information,
 602                             (amount)<0 ? tr("Sent transaction") :
 603                                          tr("Incoming transaction"),
 604                               tr("Date: %1\n"
 605                                  "Amount: %2\n"
 606                                  "Type: %3\n"
 607                                  "Address: %4\n")
 608                               .arg(date)
 609                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 610                               .arg(type)
 611                               .arg(address), icon);
 612     }
 613 }
 614
 615 void BitcoinGUI::gotoOverviewPage()
 616 {
 617     overviewAction->setChecked(true);
 618     centralWidget->setCurrentWidget(overviewPage);
 619
 620     exportAction->setEnabled(false);
 621     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 622 }
 623
 624 void BitcoinGUI::gotoHistoryPage()
 625 {
 626     historyAction->setChecked(true);
 627     centralWidget->setCurrentWidget(transactionsPage);
 628
 629     exportAction->setEnabled(true);
 630     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 631     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 632 }
 633
 634 void BitcoinGUI::gotoAddressBookPage()
 635 {
 636     addressBookAction->setChecked(true);
 637     centralWidget->setCurrentWidget(addressBookPage);
 638
 639     exportAction->setEnabled(true);
 640     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 641     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 642 }
 643
 644 void BitcoinGUI::gotoReceiveCoinsPage()
 645 {
 646     receiveCoinsAction->setChecked(true);
 647     centralWidget->setCurrentWidget(receiveCoinsPage);
 648
 649     exportAction->setEnabled(true);
 650     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 651     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 652 }
 653
 654 void BitcoinGUI::gotoSendCoinsPage()
 655 {
 656     sendCoinsAction->setChecked(true);
 657     centralWidget->setCurrentWidget(sendCoinsPage);
 658
 659     exportAction->setEnabled(false);
 660     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 661 }
 662
 663 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 664 {
 665     // Accept only URIs
 666     if(event->mimeData()->hasUrls())
 667         event->acceptProposedAction();
 668 }
 669
 670 void BitcoinGUI::dropEvent(QDropEvent *event)
 671 {
 672     if(event->mimeData()->hasUrls())
 673     {
 674         gotoSendCoinsPage();
 675         QList<QUrl> uris = event->mimeData()->urls();
 676         foreach(const QUrl &uri, uris)
 677         {
 678             sendCoinsPage->handleURI(&uri);
 679         }
 680     }
 681
 682     event->acceptProposedAction();
 683 }
 684
 685 void BitcoinGUI::setEncryptionStatus(int status)
 686 {
 687     switch(status)
 688     {
 689     case WalletModel::Unencrypted:
 690         labelEncryptionIcon->hide();
 691         encryptWalletAction->setChecked(false);
 692         changePassphraseAction->setEnabled(false);
 693         encryptWalletAction->setEnabled(true);
 694         break;
 695     case WalletModel::Unlocked:
 696         labelEncryptionIcon->show();
 697         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 698         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 699         encryptWalletAction->setChecked(true);
 700         changePassphraseAction->setEnabled(true);
 701         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 702         break;
 703     case WalletModel::Locked:
 704         labelEncryptionIcon->show();
 705         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 706         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 707         encryptWalletAction->setChecked(true);
 708         changePassphraseAction->setEnabled(true);
 709         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 710         break;
 711     }
 712 }
 713
 714 void BitcoinGUI::encryptWallet(bool status)
 715 {
 716     if(!walletModel)
 717         return;
 718     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 719                                      AskPassphraseDialog::Decrypt, this);
 720     dlg.setModel(walletModel);
 721     dlg.exec();
 722
 723     setEncryptionStatus(walletModel->getEncryptionStatus());
 724 }
 725
 726 void BitcoinGUI::changePassphrase()
 727 {
 728     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 729     dlg.setModel(walletModel);
 730     dlg.exec();
 731 }
 732
 733 void BitcoinGUI::unlockWallet()
 734 {
 735     if(!walletModel)
 736         return;
 737     // Unlock wallet when requested by wallet model
 738     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 739     {
 740         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 741         dlg.setModel(walletModel);
 742         dlg.exec();
 743     }
 744 }