src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 2011
   5  * The Bitcoin Developers 2011
   6  */
   7 #include "bitcoingui.h"
   8 #include "transactiontablemodel.h"
   9 #include "addressbookpage.h"
  10 #include "sendcoinsdialog.h"
  11 #include "optionsdialog.h"
  12 #include "aboutdialog.h"
  13 #include "clientmodel.h"
  14 #include "walletmodel.h"
  15 #include "editaddressdialog.h"
  16 #include "optionsmodel.h"
  17 #include "transactiondescdialog.h"
  18 #include "addresstablemodel.h"
  19 #include "transactionview.h"
  20 #include "overviewpage.h"
  21 #include "bitcoinunits.h"
  22 #include "guiconstants.h"
  23 #include "askpassphrasedialog.h"
  24 #include "notificator.h"
  25
  26 #ifdef Q_WS_MAC
  27 #include "macdockiconhandler.h"
  28 #endif
  29
  30 #include <QApplication>
  31 #include <QMainWindow>
  32 #include <QMenuBar>
  33 #include <QMenu>
  34 #include <QIcon>
  35 #include <QTabWidget>
  36 #include <QVBoxLayout>
  37 #include <QToolBar>
  38 #include <QStatusBar>
  39 #include <QLabel>
  40 #include <QLineEdit>
  41 #include <QPushButton>
  42 #include <QLocale>
  43 #include <QMessageBox>
  44 #include <QProgressBar>
  45 #include <QStackedWidget>
  46 #include <QDateTime>
  47 #include <QMovie>
  48
  49 #include <QDragEnterEvent>
  50 #include <QUrl>
  51
  52 #include <iostream>
  53
  54 BitcoinGUI::BitcoinGUI(QWidget *parent):
  55     QMainWindow(parent),
  56     clientModel(0),
  57     walletModel(0),
  58     dummyWidget(0),
  59     encryptWalletAction(0),
  60     changePassphraseAction(0),
  61     aboutQtAction(0),
  62     trayIcon(0),
  63     notificator(0)
  64 {
  65     resize(850, 550);
  66     setWindowTitle(tr("Bitcoin Wallet"));
  67 #ifndef Q_WS_MAC
  68     setWindowIcon(QIcon(":icons/bitcoin"));
  69 #else
  70     setUnifiedTitleAndToolBarOnMac(true);
  71     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  72 #endif
  73     // Accept D&D of URIs
  74     setAcceptDrops(true);
  75
  76     // Create actions for the toolbar, menu bar and tray/dock icon
  77     createActions();
  78
  79     // Create application menu bar
  80     createMenuBar();
  81
  82     // Create the toolbars
  83     createToolBars();
  84
  85     // Create the tray icon (or setup the dock icon)
  86     createTrayIcon();
  87
  88     // Dummy widget used when restoring window state after minimization
  89     dummyWidget = new QWidget();
  90
  91     // Create tabs
  92     overviewPage = new OverviewPage();
  93
  94     transactionsPage = new QWidget(this);
  95     QVBoxLayout *vbox = new QVBoxLayout();
  96     transactionView = new TransactionView(this);
  97     vbox->addWidget(transactionView);
  98     transactionsPage->setLayout(vbox);
  99
 100     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 101
 102     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 103
 104     sendCoinsPage = new SendCoinsDialog(this);
 105
 106     centralWidget = new QStackedWidget(this);
 107     centralWidget->addWidget(overviewPage);
 108     centralWidget->addWidget(transactionsPage);
 109     centralWidget->addWidget(addressBookPage);
 110     centralWidget->addWidget(receiveCoinsPage);
 111     centralWidget->addWidget(sendCoinsPage);
 112     setCentralWidget(centralWidget);
 113
 114     // Create status bar
 115     statusBar();
 116
 117     // Status bar notification icons
 118     QFrame *frameBlocks = new QFrame();
 119     //frameBlocks->setFrameStyle(QFrame::Panel | QFrame::Sunken);
 120     frameBlocks->setContentsMargins(0,0,0,0);
 121     frameBlocks->setMinimumWidth(56);
 122     frameBlocks->setMaximumWidth(56);
 123     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 124     frameBlocksLayout->setContentsMargins(3,0,3,0);
 125     frameBlocksLayout->setSpacing(3);
 126     labelEncryptionIcon = new QLabel();
 127     labelConnectionsIcon = new QLabel();
 128     labelBlocksIcon = new QLabel();
 129     frameBlocksLayout->addStretch();
 130     frameBlocksLayout->addWidget(labelEncryptionIcon);
 131     frameBlocksLayout->addStretch();
 132     frameBlocksLayout->addWidget(labelConnectionsIcon);
 133     frameBlocksLayout->addStretch();
 134     frameBlocksLayout->addWidget(labelBlocksIcon);
 135     frameBlocksLayout->addStretch();
 136
 137     // Progress bar for blocks download
 138     progressBarLabel = new QLabel(tr("Synchronizing with network..."));
 139     progressBarLabel->setVisible(false);
 140     progressBar = new QProgressBar();
 141     progressBar->setToolTip(tr("Block chain synchronization in progress"));
 142     progressBar->setVisible(false);
 143
 144     statusBar()->addWidget(progressBarLabel);
 145     statusBar()->addWidget(progressBar);
 146     statusBar()->addPermanentWidget(frameBlocks);
 147
 148     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 149
 150     // Clicking on a transaction on the overview page simply sends you to transaction history page
 151     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 152
 153     // Doubleclicking on a transaction on the transaction history page shows details
 154     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 155
 156     gotoOverviewPage();
 157 }
 158
 159 BitcoinGUI::~BitcoinGUI()
 160 {
 161 #ifdef Q_WS_MAC
 162     delete appMenuBar;
 163 #endif
 164     delete dummyWidget;
 165 }
 166
 167 void BitcoinGUI::createActions()
 168 {
 169     QActionGroup *tabGroup = new QActionGroup(this);
 170
 171     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 172     overviewAction->setToolTip(tr("Show general overview of wallet"));
 173     overviewAction->setCheckable(true);
 174     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 175     tabGroup->addAction(overviewAction);
 176
 177     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 178     historyAction->setToolTip(tr("Browse transaction history"));
 179     historyAction->setCheckable(true);
 180     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 181     tabGroup->addAction(historyAction);
 182
 183     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 184     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 185     addressBookAction->setCheckable(true);
 186     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 187     tabGroup->addAction(addressBookAction);
 188
 189     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 190     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 191     receiveCoinsAction->setCheckable(true);
 192     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 193     tabGroup->addAction(receiveCoinsAction);
 194
 195     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 196     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 197     sendCoinsAction->setCheckable(true);
 198     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 199     tabGroup->addAction(sendCoinsAction);
 200
 201     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 202     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 203     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 204     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 205     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 206     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 207     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 208     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 209     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 210     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 211
 212     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 213     quitAction->setToolTip(tr("Quit application"));
 214     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 215     quitAction->setMenuRole(QAction::QuitRole);
 216     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 217     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 218     aboutAction->setMenuRole(QAction::AboutRole);
 219     aboutQtAction = new QAction(tr("About &Qt"), this);
 220     aboutQtAction->setToolTip(tr("Show information about Qt"));
 221     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 222     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 223     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 224     optionsAction->setMenuRole(QAction::PreferencesRole);
 225     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 226     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 227     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 228     exportAction->setToolTip(tr("Export the current view to a file"));
 229     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 230     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 231     encryptWalletAction->setCheckable(true);
 232     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 233     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 234
 235     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 236     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 237     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 238     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 239     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 240     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 241     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 242 }
 243
 244 void BitcoinGUI::createMenuBar()
 245 {
 246 #ifdef Q_WS_MAC
 247     // Create a decoupled menu bar on Mac which stays even if the window is closed
 248     appMenuBar = new QMenuBar();
 249 #else
 250     // Get the main window's menu bar on other platforms
 251     appMenuBar = menuBar();
 252 #endif
 253
 254     // Configure the menus
 255     QMenu *file = appMenuBar->addMenu(tr("&File"));
 256     file->addAction(quitAction);
 257
 258     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 259     settings->addAction(encryptWalletAction);
 260     settings->addAction(changePassphraseAction);
 261     settings->addSeparator();
 262     settings->addAction(optionsAction);
 263
 264     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 265     help->addAction(aboutAction);
 266     help->addAction(aboutQtAction);
 267 }
 268
 269 void BitcoinGUI::createToolBars()
 270 {
 271     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 272     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 273     toolbar->addAction(overviewAction);
 274     toolbar->addAction(sendCoinsAction);
 275     toolbar->addAction(receiveCoinsAction);
 276     toolbar->addAction(historyAction);
 277     toolbar->addAction(addressBookAction);
 278
 279     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 280     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 281     toolbar2->addAction(exportAction);
 282 }
 283
 284 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 285 {
 286     this->clientModel = clientModel;
 287     if(clientModel)
 288     {
 289         if(clientModel->isTestNet())
 290         {
 291             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 292             setWindowTitle(title_testnet);
 293 #ifndef Q_WS_MAC
 294             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 295 #else
 296             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 297 #endif
 298             if(trayIcon)
 299             {
 300                 trayIcon->setToolTip(title_testnet);
 301                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 302             }
 303         }
 304
 305         // Keep up to date with client
 306         setNumConnections(clientModel->getNumConnections());
 307         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 308
 309         setNumBlocks(clientModel->getNumBlocks());
 310         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 311
 312         // Report errors from network/worker thread
 313         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 314     }
 315 }
 316
 317 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 318 {
 319     this->walletModel = walletModel;
 320     if(walletModel)
 321     {
 322         // Report errors from wallet thread
 323         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 324
 325         // Put transaction list in tabs
 326         transactionView->setModel(walletModel);
 327
 328         overviewPage->setModel(walletModel);
 329         addressBookPage->setModel(walletModel->getAddressTableModel());
 330         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 331         sendCoinsPage->setModel(walletModel);
 332
 333         setEncryptionStatus(walletModel->getEncryptionStatus());
 334         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 335
 336         // Balloon popup for new transaction
 337         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 338                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 339
 340         // Ask for passphrase if needed
 341         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 342     }
 343 }
 344
 345 void BitcoinGUI::createTrayIcon()
 346 {
 347     QMenu *trayIconMenu;
 348 #ifndef Q_WS_MAC
 349     trayIcon = new QSystemTrayIcon(this);
 350     trayIconMenu = new QMenu(this);
 351     trayIcon->setContextMenu(trayIconMenu);
 352     trayIcon->setToolTip("Bitcoin client");
 353     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 354     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 355             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 356     trayIcon->show();
 357 #else
 358     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 359     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 360     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 361     trayIconMenu = dockIconHandler->dockMenu();
 362 #endif
 363
 364     // Configuration of the tray icon (or dock icon) icon menu
 365     trayIconMenu->addAction(openBitcoinAction);
 366     trayIconMenu->addSeparator();
 367     trayIconMenu->addAction(receiveCoinsAction);
 368     trayIconMenu->addAction(sendCoinsAction);
 369     trayIconMenu->addSeparator();
 370     trayIconMenu->addAction(optionsAction);
 371 #ifndef Q_WS_MAC // This is built-in on Mac
 372     trayIconMenu->addSeparator();
 373     trayIconMenu->addAction(quitAction);
 374 #endif
 375
 376     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 377 }
 378
 379 #ifndef Q_WS_MAC
 380 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 381 {
 382     if(reason == QSystemTrayIcon::Trigger)
 383     {
 384         // Click on system tray icon triggers "open bitcoin"
 385         openBitcoinAction->trigger();
 386     }
 387 }
 388 #endif
 389
 390 void BitcoinGUI::showNormal()
 391 {
 392     // Reparent window to the desktop (in case it was hidden on minimize)
 393     if(parent() != NULL)
 394         setParent(NULL, Qt::Window);
 395     QMainWindow::showNormal();
 396 }
 397
 398 void BitcoinGUI::optionsClicked()
 399 {
 400     if(!clientModel || !clientModel->getOptionsModel())
 401         return;
 402     OptionsDialog dlg;
 403     dlg.setModel(clientModel->getOptionsModel());
 404     dlg.exec();
 405 }
 406
 407 void BitcoinGUI::aboutClicked()
 408 {
 409     AboutDialog dlg;
 410     dlg.setModel(clientModel);
 411     dlg.exec();
 412 }
 413
 414 void BitcoinGUI::setNumConnections(int count)
 415 {
 416     QString icon;
 417     switch(count)
 418     {
 419     case 0: icon = ":/icons/connect_0"; break;
 420     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 421     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 422     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 423     default: icon = ":/icons/connect_4"; break;
 424     }
 425     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 426     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 427 }
 428
 429 void BitcoinGUI::setNumBlocks(int count)
 430 {
 431     if(!clientModel)
 432         return;
 433     int total = clientModel->getNumBlocksOfPeers();
 434     QString tooltip;
 435
 436     if(count < total)
 437     {
 438         if (clientModel->getStatusBarWarnings() == "")
 439         {
 440             progressBarLabel->setVisible(true);
 441             progressBarLabel->setText(tr("Synchronizing with network..."));
 442             progressBar->setVisible(true);
 443             progressBar->setMaximum(total);
 444             progressBar->setValue(count);
 445         }
 446         else
 447         {
 448             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 449             progressBarLabel->setVisible(true);
 450             progressBar->setVisible(false);
 451         }
 452         tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
 453     }
 454     else
 455     {
 456         if (clientModel->getStatusBarWarnings() == "")
 457             progressBarLabel->setVisible(false);
 458         else
 459         {
 460             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 461             progressBarLabel->setVisible(true);
 462         }
 463         progressBar->setVisible(false);
 464         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 465     }
 466
 467     QDateTime now = QDateTime::currentDateTime();
 468     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 469     int secs = lastBlockDate.secsTo(now);
 470     QString text;
 471
 472     // Represent time from last generated block in human readable text
 473     if(secs < 60)
 474     {
 475         text = tr("%n second(s) ago","",secs);
 476     }
 477     else if(secs < 60*60)
 478     {
 479         text = tr("%n minute(s) ago","",secs/60);
 480     }
 481     else if(secs < 24*60*60)
 482     {
 483         text = tr("%n hour(s) ago","",secs/(60*60));
 484     }
 485     else
 486     {
 487         text = tr("%n day(s) ago","",secs/(60*60*24));
 488     }
 489
 490     // Set icon state: spinning if catching up, tick otherwise
 491     if(secs < 30*60)
 492     {
 493         tooltip = tr("Up to date") + QString("\n") + tooltip;
 494         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 495     }
 496     else
 497     {
 498         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 499         labelBlocksIcon->setMovie(syncIconMovie);
 500         syncIconMovie->start();
 501     }
 502
 503     tooltip += QString("\n");
 504     tooltip += tr("Last received block was generated %1.").arg(text);
 505
 506     labelBlocksIcon->setToolTip(tooltip);
 507     progressBarLabel->setToolTip(tooltip);
 508     progressBar->setToolTip(tooltip);
 509 }
 510
 511 void BitcoinGUI::refreshStatusBar()
 512 {
 513     /* Might display multiple times in the case of multiple alerts
 514     static QString prevStatusBar;
 515     QString newStatusBar = clientModel->getStatusBarWarnings();
 516     if (prevStatusBar != newStatusBar)
 517     {
 518         prevStatusBar = newStatusBar;
 519         error(tr("Network Alert"), newStatusBar);
 520     }*/
 521     setNumBlocks(clientModel->getNumBlocks());
 522 }
 523
 524 void BitcoinGUI::error(const QString &title, const QString &message)
 525 {
 526     // Report errors from network/worker thread
 527     notificator->notify(Notificator::Critical, title, message);
 528 }
 529
 530 void BitcoinGUI::changeEvent(QEvent *e)
 531 {
 532 #ifndef Q_WS_MAC // Ignored on Mac
 533     if(e->type() == QEvent::WindowStateChange)
 534     {
 535         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 536         {
 537             if(isMinimized())
 538             {
 539                 // Hiding the window from taskbar
 540                 setParent(dummyWidget, Qt::SubWindow);
 541                 return;
 542             }
 543             else
 544             {
 545                 showNormal();
 546             }
 547         }
 548     }
 549 #endif
 550     QMainWindow::changeEvent(e);
 551 }
 552
 553 void BitcoinGUI::closeEvent(QCloseEvent *event)
 554 {
 555     if(clientModel)
 556     {
 557 #ifndef Q_WS_MAC // Ignored on Mac
 558         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 559            !clientModel->getOptionsModel()->getMinimizeOnClose())
 560         {
 561             qApp->quit();
 562         }
 563 #endif
 564     }
 565     QMainWindow::closeEvent(event);
 566 }
 567
 568 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 569 {
 570     QString strMessage =
 571         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 572           "which goes to the nodes that process your transaction and helps to support the network.  "
 573           "Do you want to pay the fee?").arg(
 574                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 575     QMessageBox::StandardButton retval = QMessageBox::question(
 576           this, tr("Sending..."), strMessage,
 577           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 578     *payFee = (retval == QMessageBox::Yes);
 579 }
 580
 581 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 582 {
 583     if(!walletModel || !clientModel)
 584         return;
 585     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 586     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 587                     .data(Qt::EditRole).toULongLong();
 588     if(!clientModel->inInitialBlockDownload())
 589     {
 590         // On new transaction, make an info balloon
 591         // Unless the initial block download is in progress, to prevent balloon-spam
 592         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 593                         .data().toString();
 594         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 595                         .data().toString();
 596         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 597                         .data().toString();
 598         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 599                             TransactionTableModel::ToAddress, parent)
 600                         .data(Qt::DecorationRole));
 601
 602         notificator->notify(Notificator::Information,
 603                             (amount)<0 ? tr("Sent transaction") :
 604                                          tr("Incoming transaction"),
 605                               tr("Date: %1\n"
 606                                  "Amount: %2\n"
 607                                  "Type: %3\n"
 608                                  "Address: %4\n")
 609                               .arg(date)
 610                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 611                               .arg(type)
 612                               .arg(address), icon);
 613     }
 614 }
 615
 616 void BitcoinGUI::gotoOverviewPage()
 617 {
 618     overviewAction->setChecked(true);
 619     centralWidget->setCurrentWidget(overviewPage);
 620
 621     exportAction->setEnabled(false);
 622     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 623 }
 624
 625 void BitcoinGUI::gotoHistoryPage()
 626 {
 627     historyAction->setChecked(true);
 628     centralWidget->setCurrentWidget(transactionsPage);
 629
 630     exportAction->setEnabled(true);
 631     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 632     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 633 }
 634
 635 void BitcoinGUI::gotoAddressBookPage()
 636 {
 637     addressBookAction->setChecked(true);
 638     centralWidget->setCurrentWidget(addressBookPage);
 639
 640     exportAction->setEnabled(true);
 641     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 642     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 643 }
 644
 645 void BitcoinGUI::gotoReceiveCoinsPage()
 646 {
 647     receiveCoinsAction->setChecked(true);
 648     centralWidget->setCurrentWidget(receiveCoinsPage);
 649
 650     exportAction->setEnabled(true);
 651     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 652     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 653 }
 654
 655 void BitcoinGUI::gotoSendCoinsPage()
 656 {
 657     sendCoinsAction->setChecked(true);
 658     centralWidget->setCurrentWidget(sendCoinsPage);
 659
 660     exportAction->setEnabled(false);
 661     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 662 }
 663
 664 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 665 {
 666     // Accept only URLs
 667     if(event->mimeData()->hasUrls())
 668         event->acceptProposedAction();
 669 }
 670
 671 void BitcoinGUI::dropEvent(QDropEvent *event)
 672 {
 673     if(event->mimeData()->hasUrls())
 674     {
 675         gotoSendCoinsPage();
 676         QList<QUrl> urls = event->mimeData()->urls();
 677         foreach(const QUrl &url, urls)
 678         {
 679             sendCoinsPage->handleURL(&url);
 680         }
 681     }
 682
 683     event->acceptProposedAction();
 684 }
 685
 686 void BitcoinGUI::setEncryptionStatus(int status)
 687 {
 688     switch(status)
 689     {
 690     case WalletModel::Unencrypted:
 691         labelEncryptionIcon->hide();
 692         encryptWalletAction->setChecked(false);
 693         changePassphraseAction->setEnabled(false);
 694         encryptWalletAction->setEnabled(true);
 695         break;
 696     case WalletModel::Unlocked:
 697         labelEncryptionIcon->show();
 698         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 699         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 700         encryptWalletAction->setChecked(true);
 701         changePassphraseAction->setEnabled(true);
 702         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 703         break;
 704     case WalletModel::Locked:
 705         labelEncryptionIcon->show();
 706         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 707         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 708         encryptWalletAction->setChecked(true);
 709         changePassphraseAction->setEnabled(true);
 710         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 711         break;
 712     }
 713 }
 714
 715 void BitcoinGUI::encryptWallet(bool status)
 716 {
 717     if(!walletModel)
 718         return;
 719     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 720                                      AskPassphraseDialog::Decrypt, this);
 721     dlg.setModel(walletModel);
 722     dlg.exec();
 723
 724     setEncryptionStatus(walletModel->getEncryptionStatus());
 725 }
 726
 727 void BitcoinGUI::changePassphrase()
 728 {
 729     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 730     dlg.setModel(walletModel);
 731     dlg.exec();
 732 }
 733
 734 void BitcoinGUI::unlockWallet()
 735 {
 736     if(!walletModel)
 737         return;
 738     // Unlock wallet when requested by wallet model
 739     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 740     {
 741         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 742         dlg.setModel(walletModel);
 743         dlg.exec();
 744     }
 745 }