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 "messagepage.h"
  12 #include "optionsdialog.h"
  13 #include "aboutdialog.h"
  14 #include "clientmodel.h"
  15 #include "walletmodel.h"
  16 #include "editaddressdialog.h"
  17 #include "optionsmodel.h"
  18 #include "transactiondescdialog.h"
  19 #include "addresstablemodel.h"
  20 #include "transactionview.h"
  21 #include "overviewpage.h"
  22 #include "bitcoinunits.h"
  23 #include "guiconstants.h"
  24 #include "askpassphrasedialog.h"
  25 #include "notificator.h"
  26
  27 #ifdef Q_WS_MAC
  28 #include "macdockiconhandler.h"
  29 #endif
  30
  31 #include <QApplication>
  32 #include <QMainWindow>
  33 #include <QMenuBar>
  34 #include <QMenu>
  35 #include <QIcon>
  36 #include <QTabWidget>
  37 #include <QVBoxLayout>
  38 #include <QToolBar>
  39 #include <QStatusBar>
  40 #include <QLabel>
  41 #include <QLineEdit>
  42 #include <QPushButton>
  43 #include <QLocale>
  44 #include <QMessageBox>
  45 #include <QProgressBar>
  46 #include <QStackedWidget>
  47 #include <QDateTime>
  48 #include <QMovie>
  49
  50 #include <QDragEnterEvent>
  51 #include <QUrl>
  52
  53 #include <iostream>
  54
  55 BitcoinGUI::BitcoinGUI(QWidget *parent):
  56     QMainWindow(parent),
  57     clientModel(0),
  58     walletModel(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     // Create tabs
  89     overviewPage = new OverviewPage();
  90
  91     transactionsPage = new QWidget(this);
  92     QVBoxLayout *vbox = new QVBoxLayout();
  93     transactionView = new TransactionView(this);
  94     vbox->addWidget(transactionView);
  95     transactionsPage->setLayout(vbox);
  96
  97     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
  98
  99     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 100
 101     sendCoinsPage = new SendCoinsDialog(this);
 102
 103     messagePage = new MessagePage(this);
 104
 105     centralWidget = new QStackedWidget(this);
 106     centralWidget->addWidget(overviewPage);
 107     centralWidget->addWidget(transactionsPage);
 108     centralWidget->addWidget(addressBookPage);
 109     centralWidget->addWidget(receiveCoinsPage);
 110     centralWidget->addWidget(sendCoinsPage);
 111 #ifdef FIRST_CLASS_MESSAGING
 112     centralWidget->addWidget(messagePage);
 113 #endif
 114     setCentralWidget(centralWidget);
 115
 116     // Create status bar
 117     statusBar();
 118
 119     // Status bar notification icons
 120     QFrame *frameBlocks = new QFrame();
 121     frameBlocks->setContentsMargins(0,0,0,0);
 122     frameBlocks->setMinimumWidth(56);
 123     frameBlocks->setMaximumWidth(56);
 124     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 125     frameBlocksLayout->setContentsMargins(3,0,3,0);
 126     frameBlocksLayout->setSpacing(3);
 127     labelEncryptionIcon = new QLabel();
 128     labelConnectionsIcon = new QLabel();
 129     labelBlocksIcon = new QLabel();
 130     frameBlocksLayout->addStretch();
 131     frameBlocksLayout->addWidget(labelEncryptionIcon);
 132     frameBlocksLayout->addStretch();
 133     frameBlocksLayout->addWidget(labelConnectionsIcon);
 134     frameBlocksLayout->addStretch();
 135     frameBlocksLayout->addWidget(labelBlocksIcon);
 136     frameBlocksLayout->addStretch();
 137
 138     // Progress bar for blocks download
 139     progressBarLabel = new QLabel(tr("Synchronizing with network..."));
 140     progressBarLabel->setVisible(false);
 141     progressBar = new QProgressBar();
 142     progressBar->setToolTip(tr("Block chain synchronization in progress"));
 143     progressBar->setVisible(false);
 144
 145     statusBar()->addWidget(progressBarLabel);
 146     statusBar()->addWidget(progressBar);
 147     statusBar()->addPermanentWidget(frameBlocks);
 148
 149     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 150
 151     // Clicking on a transaction on the overview page simply sends you to transaction history page
 152     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 153
 154     // Doubleclicking on a transaction on the transaction history page shows details
 155     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 156
 157     gotoOverviewPage();
 158 }
 159
 160 BitcoinGUI::~BitcoinGUI()
 161 {
 162 #ifdef Q_WS_MAC
 163     delete appMenuBar;
 164 #endif
 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     messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
 202     messageAction->setToolTip(tr("Prove you control an address"));
 203 #ifdef FIRST_CLASS_MESSAGING
 204     messageAction->setCheckable(true);
 205 #endif
 206     tabGroup->addAction(messageAction);
 207
 208     connect(overviewAction, SIGNAL(triggered()), this, SLOT(show()));
 209     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 210     connect(historyAction, SIGNAL(triggered()), this, SLOT(show()));
 211     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 212     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(show()));
 213     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 214     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(show()));
 215     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 216     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(show()));
 217     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 218     connect(messageAction, SIGNAL(triggered()), this, SLOT(show()));
 219     connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));
 220
 221     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 222     quitAction->setToolTip(tr("Quit application"));
 223     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 224     quitAction->setMenuRole(QAction::QuitRole);
 225     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 226     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 227     aboutAction->setMenuRole(QAction::AboutRole);
 228     aboutQtAction = new QAction(tr("About &Qt"), this);
 229     aboutQtAction->setToolTip(tr("Show information about Qt"));
 230     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 231     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 232     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 233     optionsAction->setMenuRole(QAction::PreferencesRole);
 234     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 235     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 236     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 237     exportAction->setToolTip(tr("Export the current view to a file"));
 238     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 239     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 240     encryptWalletAction->setCheckable(true);
 241     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 242     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 243
 244     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 245     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 246     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 247     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 248     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormal()));
 249     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 250     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 251 }
 252
 253 void BitcoinGUI::createMenuBar()
 254 {
 255 #ifdef Q_WS_MAC
 256     // Create a decoupled menu bar on Mac which stays even if the window is closed
 257     appMenuBar = new QMenuBar();
 258 #else
 259     // Get the main window's menu bar on other platforms
 260     appMenuBar = menuBar();
 261 #endif
 262
 263     // Configure the menus
 264     QMenu *file = appMenuBar->addMenu(tr("&File"));
 265 #ifndef FIRST_CLASS_MESSAGING
 266     file->addAction(messageAction);
 267     file->addSeparator();
 268 #endif
 269     file->addAction(quitAction);
 270
 271     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 272     settings->addAction(encryptWalletAction);
 273     settings->addAction(changePassphraseAction);
 274     settings->addSeparator();
 275     settings->addAction(optionsAction);
 276
 277     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 278     help->addAction(aboutAction);
 279     help->addAction(aboutQtAction);
 280 }
 281
 282 void BitcoinGUI::createToolBars()
 283 {
 284     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 285     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 286     toolbar->addAction(overviewAction);
 287     toolbar->addAction(sendCoinsAction);
 288     toolbar->addAction(receiveCoinsAction);
 289     toolbar->addAction(historyAction);
 290     toolbar->addAction(addressBookAction);
 291 #ifdef FIRST_CLASS_MESSAGING
 292     toolbar->addAction(messageAction);
 293 #endif
 294
 295     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 296     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 297     toolbar2->addAction(exportAction);
 298 }
 299
 300 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 301 {
 302     this->clientModel = clientModel;
 303     if(clientModel)
 304     {
 305         if(clientModel->isTestNet())
 306         {
 307             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 308             setWindowTitle(title_testnet);
 309 #ifndef Q_WS_MAC
 310             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 311 #else
 312             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 313 #endif
 314             if(trayIcon)
 315             {
 316                 trayIcon->setToolTip(title_testnet);
 317                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 318             }
 319         }
 320
 321         // Keep up to date with client
 322         setNumConnections(clientModel->getNumConnections());
 323         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 324
 325         setNumBlocks(clientModel->getNumBlocks());
 326         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 327
 328         // Report errors from network/worker thread
 329         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 330     }
 331 }
 332
 333 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 334 {
 335     this->walletModel = walletModel;
 336     if(walletModel)
 337     {
 338         // Report errors from wallet thread
 339         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 340
 341         // Put transaction list in tabs
 342         transactionView->setModel(walletModel);
 343
 344         overviewPage->setModel(walletModel);
 345         addressBookPage->setModel(walletModel->getAddressTableModel());
 346         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 347         sendCoinsPage->setModel(walletModel);
 348         messagePage->setModel(walletModel);
 349
 350         setEncryptionStatus(walletModel->getEncryptionStatus());
 351         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 352
 353         // Balloon popup for new transaction
 354         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 355                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 356
 357         // Ask for passphrase if needed
 358         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 359     }
 360 }
 361
 362 void BitcoinGUI::createTrayIcon()
 363 {
 364     QMenu *trayIconMenu;
 365 #ifndef Q_WS_MAC
 366     trayIcon = new QSystemTrayIcon(this);
 367     trayIconMenu = new QMenu(this);
 368     trayIcon->setContextMenu(trayIconMenu);
 369     trayIcon->setToolTip("Bitcoin client");
 370     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 371     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 372             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 373     trayIcon->show();
 374 #else
 375     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 376     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 377     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 378     trayIconMenu = dockIconHandler->dockMenu();
 379 #endif
 380
 381     // Configuration of the tray icon (or dock icon) icon menu
 382     trayIconMenu->addAction(openBitcoinAction);
 383     trayIconMenu->addSeparator();
 384     trayIconMenu->addAction(messageAction);
 385 #ifndef FIRST_CLASS_MESSAGING
 386     trayIconMenu->addSeparator();
 387 #endif
 388     trayIconMenu->addAction(receiveCoinsAction);
 389     trayIconMenu->addAction(sendCoinsAction);
 390     trayIconMenu->addSeparator();
 391     trayIconMenu->addAction(optionsAction);
 392 #ifndef Q_WS_MAC // This is built-in on Mac
 393     trayIconMenu->addSeparator();
 394     trayIconMenu->addAction(quitAction);
 395 #endif
 396
 397     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 398 }
 399
 400 #ifndef Q_WS_MAC
 401 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 402 {
 403     if(reason == QSystemTrayIcon::Trigger)
 404     {
 405         // Click on system tray icon triggers "open bitcoin"
 406         openBitcoinAction->trigger();
 407     }
 408
 409 }
 410 #endif
 411
 412 void BitcoinGUI::optionsClicked()
 413 {
 414     if(!clientModel || !clientModel->getOptionsModel())
 415         return;
 416     OptionsDialog dlg;
 417     dlg.setModel(clientModel->getOptionsModel());
 418     dlg.exec();
 419 }
 420
 421 void BitcoinGUI::aboutClicked()
 422 {
 423     AboutDialog dlg;
 424     dlg.setModel(clientModel);
 425     dlg.exec();
 426 }
 427
 428 void BitcoinGUI::setNumConnections(int count)
 429 {
 430     QString icon;
 431     switch(count)
 432     {
 433     case 0: icon = ":/icons/connect_0"; break;
 434     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 435     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 436     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 437     default: icon = ":/icons/connect_4"; break;
 438     }
 439     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 440     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 441 }
 442
 443 void BitcoinGUI::setNumBlocks(int count)
 444 {
 445     if(!clientModel)
 446         return;
 447     int total = clientModel->getNumBlocksOfPeers();
 448     QString tooltip;
 449
 450     if(count < total)
 451     {
 452         if (clientModel->getStatusBarWarnings() == "")
 453         {
 454             progressBarLabel->setVisible(true);
 455             progressBarLabel->setText(tr("Synchronizing with network..."));
 456             progressBar->setVisible(true);
 457             progressBar->setMaximum(total);
 458             progressBar->setValue(count);
 459         }
 460         else
 461         {
 462             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 463             progressBarLabel->setVisible(true);
 464             progressBar->setVisible(false);
 465         }
 466         tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
 467     }
 468     else
 469     {
 470         if (clientModel->getStatusBarWarnings() == "")
 471             progressBarLabel->setVisible(false);
 472         else
 473         {
 474             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 475             progressBarLabel->setVisible(true);
 476         }
 477         progressBar->setVisible(false);
 478         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 479     }
 480
 481     QDateTime now = QDateTime::currentDateTime();
 482     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 483     int secs = lastBlockDate.secsTo(now);
 484     QString text;
 485
 486     // Represent time from last generated block in human readable text
 487     if(secs < 60)
 488     {
 489         text = tr("%n second(s) ago","",secs);
 490     }
 491     else if(secs < 60*60)
 492     {
 493         text = tr("%n minute(s) ago","",secs/60);
 494     }
 495     else if(secs < 24*60*60)
 496     {
 497         text = tr("%n hour(s) ago","",secs/(60*60));
 498     }
 499     else
 500     {
 501         text = tr("%n day(s) ago","",secs/(60*60*24));
 502     }
 503
 504     // Set icon state: spinning if catching up, tick otherwise
 505     if(secs < 30*60)
 506     {
 507         tooltip = tr("Up to date") + QString("\n") + tooltip;
 508         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 509     }
 510     else
 511     {
 512         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 513         labelBlocksIcon->setMovie(syncIconMovie);
 514         syncIconMovie->start();
 515     }
 516
 517     tooltip += QString("\n");
 518     tooltip += tr("Last received block was generated %1.").arg(text);
 519
 520     labelBlocksIcon->setToolTip(tooltip);
 521     progressBarLabel->setToolTip(tooltip);
 522     progressBar->setToolTip(tooltip);
 523 }
 524
 525 void BitcoinGUI::refreshStatusBar()
 526 {
 527     /* Might display multiple times in the case of multiple alerts
 528     static QString prevStatusBar;
 529     QString newStatusBar = clientModel->getStatusBarWarnings();
 530     if (prevStatusBar != newStatusBar)
 531     {
 532         prevStatusBar = newStatusBar;
 533         error(tr("Network Alert"), newStatusBar);
 534     }*/
 535     setNumBlocks(clientModel->getNumBlocks());
 536 }
 537
 538 void BitcoinGUI::error(const QString &title, const QString &message)
 539 {
 540     // Report errors from network/worker thread
 541     notificator->notify(Notificator::Critical, title, message);
 542 }
 543
 544 void BitcoinGUI::changeEvent(QEvent *e)
 545 {
 546 #ifndef Q_WS_MAC // Ignored on Mac
 547     if(e->type() == QEvent::WindowStateChange)
 548     {
 549         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 550         {
 551             if(isMinimized())
 552             {
 553                 hide();
 554                 e->ignore();
 555             }
 556             else
 557             {
 558                 show();
 559                 e->accept();
 560             }
 561         }
 562     }
 563 #endif
 564     QMainWindow::changeEvent(e);
 565 }
 566
 567 void BitcoinGUI::closeEvent(QCloseEvent *event)
 568 {
 569     if(clientModel)
 570     {
 571 #ifndef Q_WS_MAC // Ignored on Mac
 572         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 573            !clientModel->getOptionsModel()->getMinimizeOnClose())
 574         {
 575             qApp->quit();
 576         }
 577 #endif
 578     }
 579     QMainWindow::closeEvent(event);
 580 }
 581
 582 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 583 {
 584     QString strMessage =
 585         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 586           "which goes to the nodes that process your transaction and helps to support the network.  "
 587           "Do you want to pay the fee?").arg(
 588                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 589     QMessageBox::StandardButton retval = QMessageBox::question(
 590           this, tr("Sending..."), strMessage,
 591           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 592     *payFee = (retval == QMessageBox::Yes);
 593 }
 594
 595 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 596 {
 597     if(!walletModel || !clientModel)
 598         return;
 599     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 600     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 601                     .data(Qt::EditRole).toULongLong();
 602     if(!clientModel->inInitialBlockDownload())
 603     {
 604         // On new transaction, make an info balloon
 605         // Unless the initial block download is in progress, to prevent balloon-spam
 606         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 607                         .data().toString();
 608         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 609                         .data().toString();
 610         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 611                         .data().toString();
 612         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 613                             TransactionTableModel::ToAddress, parent)
 614                         .data(Qt::DecorationRole));
 615
 616         notificator->notify(Notificator::Information,
 617                             (amount)<0 ? tr("Sent transaction") :
 618                                          tr("Incoming transaction"),
 619                               tr("Date: %1\n"
 620                                  "Amount: %2\n"
 621                                  "Type: %3\n"
 622                                  "Address: %4\n")
 623                               .arg(date)
 624                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 625                               .arg(type)
 626                               .arg(address), icon);
 627     }
 628 }
 629
 630 void BitcoinGUI::gotoOverviewPage()
 631 {
 632     overviewAction->setChecked(true);
 633     centralWidget->setCurrentWidget(overviewPage);
 634
 635     exportAction->setEnabled(false);
 636     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 637 }
 638
 639 void BitcoinGUI::gotoHistoryPage()
 640 {
 641     historyAction->setChecked(true);
 642     centralWidget->setCurrentWidget(transactionsPage);
 643
 644     exportAction->setEnabled(true);
 645     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 646     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 647 }
 648
 649 void BitcoinGUI::gotoAddressBookPage()
 650 {
 651     addressBookAction->setChecked(true);
 652     centralWidget->setCurrentWidget(addressBookPage);
 653
 654     exportAction->setEnabled(true);
 655     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 656     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 657 }
 658
 659 void BitcoinGUI::gotoReceiveCoinsPage()
 660 {
 661     receiveCoinsAction->setChecked(true);
 662     centralWidget->setCurrentWidget(receiveCoinsPage);
 663
 664     exportAction->setEnabled(true);
 665     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 666     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 667 }
 668
 669 void BitcoinGUI::gotoSendCoinsPage()
 670 {
 671     sendCoinsAction->setChecked(true);
 672     centralWidget->setCurrentWidget(sendCoinsPage);
 673
 674     exportAction->setEnabled(false);
 675     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 676 }
 677
 678 void BitcoinGUI::gotoMessagePage()
 679 {
 680 #ifdef FIRST_CLASS_MESSAGING
 681     messageAction->setChecked(true);
 682     centralWidget->setCurrentWidget(messagePage);
 683
 684     exportAction->setEnabled(false);
 685     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 686 #else
 687     messagePage->show();
 688     messagePage->setFocus();
 689 #endif
 690 }
 691
 692 void BitcoinGUI::gotoMessagePage(QString addr)
 693 {
 694     gotoMessagePage();
 695     messagePage->setAddress(addr);
 696 }
 697
 698 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 699 {
 700     // Accept only URLs
 701     if(event->mimeData()->hasUrls())
 702         event->acceptProposedAction();
 703 }
 704
 705 void BitcoinGUI::dropEvent(QDropEvent *event)
 706 {
 707     if(event->mimeData()->hasUrls())
 708     {
 709         gotoSendCoinsPage();
 710         QList<QUrl> urls = event->mimeData()->urls();
 711         foreach(const QUrl &url, urls)
 712         {
 713             sendCoinsPage->handleURL(&url);
 714         }
 715     }
 716
 717     event->acceptProposedAction();
 718 }
 719
 720 void BitcoinGUI::handleURL(QString strURL)
 721 {
 722     gotoSendCoinsPage();
 723     QUrl url = QUrl(strURL);
 724     sendCoinsPage->handleURL(&url);
 725 }
 726
 727 void BitcoinGUI::setEncryptionStatus(int status)
 728 {
 729     switch(status)
 730     {
 731     case WalletModel::Unencrypted:
 732         labelEncryptionIcon->hide();
 733         encryptWalletAction->setChecked(false);
 734         changePassphraseAction->setEnabled(false);
 735         encryptWalletAction->setEnabled(true);
 736         break;
 737     case WalletModel::Unlocked:
 738         labelEncryptionIcon->show();
 739         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 740         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 741         encryptWalletAction->setChecked(true);
 742         changePassphraseAction->setEnabled(true);
 743         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 744         break;
 745     case WalletModel::Locked:
 746         labelEncryptionIcon->show();
 747         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 748         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 749         encryptWalletAction->setChecked(true);
 750         changePassphraseAction->setEnabled(true);
 751         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 752         break;
 753     }
 754 }
 755
 756 void BitcoinGUI::encryptWallet(bool status)
 757 {
 758     if(!walletModel)
 759         return;
 760     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 761                                      AskPassphraseDialog::Decrypt, this);
 762     dlg.setModel(walletModel);
 763     dlg.exec();
 764
 765     setEncryptionStatus(walletModel->getEncryptionStatus());
 766 }
 767
 768 void BitcoinGUI::changePassphrase()
 769 {
 770     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 771     dlg.setModel(walletModel);
 772     dlg.exec();
 773 }
 774
 775 void BitcoinGUI::unlockWallet()
 776 {
 777     if(!walletModel)
 778         return;
 779     // Unlock wallet when requested by wallet model
 780     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 781     {
 782         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 783         dlg.setModel(walletModel);
 784         dlg.exec();
 785     }
 786 }