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