src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 2011
   5  */
   6 #include "bitcoingui.h"
   7 #include "transactiontablemodel.h"
   8 #include "addressbookpage.h"
   9 #include "sendcoinsdialog.h"
  10 #include "optionsdialog.h"
  11 #include "aboutdialog.h"
  12 #include "clientmodel.h"
  13 #include "walletmodel.h"
  14 #include "editaddressdialog.h"
  15 #include "optionsmodel.h"
  16 #include "transactiondescdialog.h"
  17 #include "addresstablemodel.h"
  18 #include "transactionview.h"
  19 #include "overviewpage.h"
  20 #include "bitcoinunits.h"
  21 #include "guiconstants.h"
  22 #include "askpassphrasedialog.h"
  23 #include "notificator.h"
  24
  25 #ifdef Q_WS_MAC
  26 #include "macdockiconhandler.h"
  27 #endif
  28
  29 #include <QApplication>
  30 #include <QMainWindow>
  31 #include <QMenuBar>
  32 #include <QMenu>
  33 #include <QIcon>
  34 #include <QTabWidget>
  35 #include <QVBoxLayout>
  36 #include <QToolBar>
  37 #include <QStatusBar>
  38 #include <QLabel>
  39 #include <QLineEdit>
  40 #include <QPushButton>
  41 #include <QLocale>
  42 #include <QMessageBox>
  43 #include <QProgressBar>
  44 #include <QStackedWidget>
  45 #include <QDateTime>
  46 #include <QMovie>
  47
  48 #include <QDragEnterEvent>
  49 #include <QUrl>
  50
  51 #include <iostream>
  52
  53 BitcoinGUI::BitcoinGUI(QWidget *parent):
  54     QMainWindow(parent),
  55     clientModel(0),
  56     walletModel(0),
  57     encryptWalletAction(0),
  58     changePassphraseAction(0),
  59     aboutQtAction(0),
  60     trayIcon(0),
  61     notificator(0)
  62 {
  63     resize(850, 550);
  64     setWindowTitle(tr("Bitcoin Wallet"));
  65 #ifndef Q_WS_MAC
  66     setWindowIcon(QIcon(":icons/bitcoin"));
  67 #else
  68     setUnifiedTitleAndToolBarOnMac(true);
  69     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  70 #endif
  71     // Accept D&D of URIs
  72     setAcceptDrops(true);
  73
  74     // Create actions for the toolbar, menu bar and tray/dock icon
  75     createActions();
  76
  77     // Create application menu bar
  78     createMenuBar();
  79
  80     // Create the toolbars
  81     createToolBars();
  82
  83     // Create the tray icon (or setup the dock icon)
  84     createTrayIcon();
  85
  86     // Create tabs
  87     overviewPage = new OverviewPage();
  88
  89     transactionsPage = new QWidget(this);
  90     QVBoxLayout *vbox = new QVBoxLayout();
  91     transactionView = new TransactionView(this);
  92     vbox->addWidget(transactionView);
  93     transactionsPage->setLayout(vbox);
  94
  95     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
  96
  97     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
  98
  99     sendCoinsPage = new SendCoinsDialog(this);
 100
 101     centralWidget = new QStackedWidget(this);
 102     centralWidget->addWidget(overviewPage);
 103     centralWidget->addWidget(transactionsPage);
 104     centralWidget->addWidget(addressBookPage);
 105     centralWidget->addWidget(receiveCoinsPage);
 106     centralWidget->addWidget(sendCoinsPage);
 107     setCentralWidget(centralWidget);
 108
 109     // Create status bar
 110     statusBar();
 111
 112     // Status bar notification icons
 113     QFrame *frameBlocks = new QFrame();
 114     //frameBlocks->setFrameStyle(QFrame::Panel | QFrame::Sunken);
 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 initTotal = clientModel->getNumBlocksAtStartup();
 421     int total = clientModel->getNumBlocksOfPeers();
 422     QString tooltip;
 423
 424     if(count < total)
 425     {
 426         progressBarLabel->setVisible(true);
 427         progressBar->setVisible(true);
 428         progressBar->setMaximum(total - initTotal);
 429         progressBar->setValue(count - initTotal);
 430         tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
 431     }
 432     else
 433     {
 434         progressBarLabel->setVisible(false);
 435         progressBar->setVisible(false);
 436         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 437     }
 438
 439     QDateTime now = QDateTime::currentDateTime();
 440     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 441     int secs = lastBlockDate.secsTo(now);
 442     QString text;
 443
 444     // Represent time from last generated block in human readable text
 445     if(secs < 60)
 446     {
 447         text = tr("%n second(s) ago","",secs);
 448     }
 449     else if(secs < 60*60)
 450     {
 451         text = tr("%n minute(s) ago","",secs/60);
 452     }
 453     else if(secs < 24*60*60)
 454     {
 455         text = tr("%n hour(s) ago","",secs/(60*60));
 456     }
 457     else
 458     {
 459         text = tr("%n day(s) ago","",secs/(60*60*24));
 460     }
 461
 462     // Set icon state: spinning if catching up, tick otherwise
 463     if(secs < 30*60)
 464     {
 465         tooltip = tr("Up to date") + QString("\n") + tooltip;
 466         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 467     }
 468     else
 469     {
 470         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 471         labelBlocksIcon->setMovie(syncIconMovie);
 472         syncIconMovie->start();
 473     }
 474
 475     tooltip += QString("\n");
 476     tooltip += tr("Last received block was generated %1.").arg(text);
 477
 478     labelBlocksIcon->setToolTip(tooltip);
 479     progressBarLabel->setToolTip(tooltip);
 480     progressBar->setToolTip(tooltip);
 481 }
 482
 483 void BitcoinGUI::error(const QString &title, const QString &message)
 484 {
 485     // Report errors from network/worker thread
 486     notificator->notify(Notificator::Critical, title, message);
 487 }
 488
 489 void BitcoinGUI::changeEvent(QEvent *e)
 490 {
 491 #ifndef Q_WS_MAC // Ignored on Mac
 492     if(e->type() == QEvent::WindowStateChange)
 493     {
 494         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 495         {
 496             if(isMinimized())
 497             {
 498                 hide();
 499                 e->ignore();
 500             }
 501             else
 502             {
 503                 show();
 504                 e->accept();
 505             }
 506         }
 507     }
 508 #endif
 509     QMainWindow::changeEvent(e);
 510 }
 511
 512 void BitcoinGUI::closeEvent(QCloseEvent *event)
 513 {
 514     if(clientModel)
 515     {
 516 #ifndef Q_WS_MAC // Ignored on Mac
 517         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 518            !clientModel->getOptionsModel()->getMinimizeOnClose())
 519         {
 520             qApp->quit();
 521         }
 522 #endif
 523     }
 524     QMainWindow::closeEvent(event);
 525 }
 526
 527 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 528 {
 529     QString strMessage =
 530         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 531           "which goes to the nodes that process your transaction and helps to support the network.  "
 532           "Do you want to pay the fee?").arg(
 533                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 534     QMessageBox::StandardButton retval = QMessageBox::question(
 535           this, tr("Sending..."), strMessage,
 536           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 537     *payFee = (retval == QMessageBox::Yes);
 538 }
 539
 540 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 541 {
 542     if(!walletModel || !clientModel)
 543         return;
 544     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 545     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 546                     .data(Qt::EditRole).toULongLong();
 547     if(!clientModel->inInitialBlockDownload())
 548     {
 549         // On new transaction, make an info balloon
 550         // Unless the initial block download is in progress, to prevent balloon-spam
 551         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 552                         .data().toString();
 553         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 554                         .data().toString();
 555         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 556                         .data().toString();
 557         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 558                             TransactionTableModel::ToAddress, parent)
 559                         .data(Qt::DecorationRole));
 560
 561         notificator->notify(Notificator::Information,
 562                             (amount)<0 ? tr("Sent transaction") :
 563                                          tr("Incoming transaction"),
 564                               tr("Date: %1\n"
 565                                  "Amount: %2\n"
 566                                  "Type: %3\n"
 567                                  "Address: %4\n")
 568                               .arg(date)
 569                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 570                               .arg(type)
 571                               .arg(address), icon);
 572     }
 573 }
 574
 575 void BitcoinGUI::gotoOverviewPage()
 576 {
 577     overviewAction->setChecked(true);
 578     centralWidget->setCurrentWidget(overviewPage);
 579
 580     exportAction->setEnabled(false);
 581     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 582 }
 583
 584 void BitcoinGUI::gotoHistoryPage()
 585 {
 586     historyAction->setChecked(true);
 587     centralWidget->setCurrentWidget(transactionsPage);
 588
 589     exportAction->setEnabled(true);
 590     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 591     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 592 }
 593
 594 void BitcoinGUI::gotoAddressBookPage()
 595 {
 596     addressBookAction->setChecked(true);
 597     centralWidget->setCurrentWidget(addressBookPage);
 598
 599     exportAction->setEnabled(true);
 600     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 601     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 602 }
 603
 604 void BitcoinGUI::gotoReceiveCoinsPage()
 605 {
 606     receiveCoinsAction->setChecked(true);
 607     centralWidget->setCurrentWidget(receiveCoinsPage);
 608
 609     exportAction->setEnabled(true);
 610     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 611     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 612 }
 613
 614 void BitcoinGUI::gotoSendCoinsPage()
 615 {
 616     sendCoinsAction->setChecked(true);
 617     centralWidget->setCurrentWidget(sendCoinsPage);
 618
 619     exportAction->setEnabled(false);
 620     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 621 }
 622
 623 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 624 {
 625     // Accept only URLs
 626     if(event->mimeData()->hasUrls())
 627         event->acceptProposedAction();
 628 }
 629
 630 void BitcoinGUI::dropEvent(QDropEvent *event)
 631 {
 632     if(event->mimeData()->hasUrls())
 633     {
 634         gotoSendCoinsPage();
 635         QList<QUrl> urls = event->mimeData()->urls();
 636         foreach(const QUrl &url, urls)
 637         {
 638             sendCoinsPage->handleURL(&url);
 639         }
 640     }
 641
 642     event->acceptProposedAction();
 643 }
 644
 645 void BitcoinGUI::setEncryptionStatus(int status)
 646 {
 647     switch(status)
 648     {
 649     case WalletModel::Unencrypted:
 650         labelEncryptionIcon->hide();
 651         encryptWalletAction->setChecked(false);
 652         changePassphraseAction->setEnabled(false);
 653         encryptWalletAction->setEnabled(true);
 654         break;
 655     case WalletModel::Unlocked:
 656         labelEncryptionIcon->show();
 657         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 658         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 659         encryptWalletAction->setChecked(true);
 660         changePassphraseAction->setEnabled(true);
 661         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 662         break;
 663     case WalletModel::Locked:
 664         labelEncryptionIcon->show();
 665         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 666         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 667         encryptWalletAction->setChecked(true);
 668         changePassphraseAction->setEnabled(true);
 669         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 670         break;
 671     }
 672 }
 673
 674 void BitcoinGUI::encryptWallet(bool status)
 675 {
 676     if(!walletModel)
 677         return;
 678     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 679                                      AskPassphraseDialog::Decrypt, this);
 680     dlg.setModel(walletModel);
 681     dlg.exec();
 682
 683     setEncryptionStatus(walletModel->getEncryptionStatus());
 684 }
 685
 686 void BitcoinGUI::changePassphrase()
 687 {
 688     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 689     dlg.setModel(walletModel);
 690     dlg.exec();
 691 }
 692
 693 void BitcoinGUI::unlockWallet()
 694 {
 695     if(!walletModel)
 696         return;
 697     // Unlock wallet when requested by wallet model
 698     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 699     {
 700         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 701         dlg.setModel(walletModel);
 702         dlg.exec();
 703     }
 704 }