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