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