src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 20011-2012
   5  * The Bitcoin Developers 20011-2012
   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 #include <QFileDialog>
  50 #include <QDesktopServices>
  51 #include <QTimer>
  52
  53 #include <QDragEnterEvent>
  54 #include <QUrl>
  55
  56 #include <iostream>
  57
  58 BitcoinGUI::BitcoinGUI(QWidget *parent):
  59     QMainWindow(parent),
  60     clientModel(0),
  61     walletModel(0),
  62     encryptWalletAction(0),
  63     changePassphraseAction(0),
  64     aboutQtAction(0),
  65     trayIcon(0),
  66     notificator(0)
  67 {
  68     resize(850, 550);
  69     setWindowTitle(tr("Bitcoin Wallet"));
  70 #ifndef Q_WS_MAC
  71     setWindowIcon(QIcon(":icons/bitcoin"));
  72 #else
  73     setUnifiedTitleAndToolBarOnMac(true);
  74     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  75 #endif
  76     // Accept D&D of URIs
  77     setAcceptDrops(true);
  78
  79     // Create actions for the toolbar, menu bar and tray/dock icon
  80     createActions();
  81
  82     // Create application menu bar
  83     createMenuBar();
  84
  85     // Create the toolbars
  86     createToolBars();
  87
  88     // Create the tray icon (or setup the dock icon)
  89     createTrayIcon();
  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     messagePage = new MessagePage(this);
 107
 108     centralWidget = new QStackedWidget(this);
 109     centralWidget->addWidget(overviewPage);
 110     centralWidget->addWidget(transactionsPage);
 111     centralWidget->addWidget(addressBookPage);
 112     centralWidget->addWidget(receiveCoinsPage);
 113     centralWidget->addWidget(sendCoinsPage);
 114 #ifdef FIRST_CLASS_MESSAGING
 115     centralWidget->addWidget(messagePage);
 116 #endif
 117     setCentralWidget(centralWidget);
 118
 119     // Create status bar
 120     statusBar();
 121
 122     // Status bar notification icons
 123     QFrame *frameBlocks = new QFrame();
 124     frameBlocks->setContentsMargins(0,0,0,0);
 125     frameBlocks->setMinimumWidth(56);
 126     frameBlocks->setMaximumWidth(56);
 127     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 128     frameBlocksLayout->setContentsMargins(3,0,3,0);
 129     frameBlocksLayout->setSpacing(3);
 130     labelEncryptionIcon = new QLabel();
 131     labelConnectionsIcon = new QLabel();
 132     labelBlocksIcon = new QLabel();
 133     frameBlocksLayout->addStretch();
 134     frameBlocksLayout->addWidget(labelEncryptionIcon);
 135     frameBlocksLayout->addStretch();
 136     frameBlocksLayout->addWidget(labelConnectionsIcon);
 137     frameBlocksLayout->addStretch();
 138     frameBlocksLayout->addWidget(labelBlocksIcon);
 139     frameBlocksLayout->addStretch();
 140
 141     // Progress bar for blocks download
 142     progressBarLabel = new QLabel(tr("Synchronizing with network..."));
 143     progressBarLabel->setVisible(false);
 144     progressBar = new QProgressBar();
 145     progressBar->setToolTip(tr("Block chain synchronization in progress"));
 146     progressBar->setVisible(false);
 147
 148     statusBar()->addWidget(progressBarLabel);
 149     statusBar()->addWidget(progressBar);
 150     statusBar()->addPermanentWidget(frameBlocks);
 151
 152     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 153
 154     // Clicking on a transaction on the overview page simply sends you to transaction history page
 155     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 156
 157     // Doubleclicking on a transaction on the transaction history page shows details
 158     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 159
 160     gotoOverviewPage();
 161 }
 162
 163 BitcoinGUI::~BitcoinGUI()
 164 {
 165     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 166         trayIcon->hide();
 167 #ifdef Q_WS_MAC
 168     delete appMenuBar;
 169 #endif
 170 }
 171
 172 void BitcoinGUI::createActions()
 173 {
 174     QActionGroup *tabGroup = new QActionGroup(this);
 175
 176     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 177     overviewAction->setToolTip(tr("Show general overview of wallet"));
 178     overviewAction->setCheckable(true);
 179     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 180     tabGroup->addAction(overviewAction);
 181
 182     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 183     historyAction->setToolTip(tr("Browse transaction history"));
 184     historyAction->setCheckable(true);
 185     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 186     tabGroup->addAction(historyAction);
 187
 188     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 189     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 190     addressBookAction->setCheckable(true);
 191     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 192     tabGroup->addAction(addressBookAction);
 193
 194     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 195     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 196     receiveCoinsAction->setCheckable(true);
 197     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 198     tabGroup->addAction(receiveCoinsAction);
 199
 200     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 201     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 202     sendCoinsAction->setCheckable(true);
 203     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 204     tabGroup->addAction(sendCoinsAction);
 205
 206     messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
 207     messageAction->setToolTip(tr("Prove you control an address"));
 208 #ifdef FIRST_CLASS_MESSAGING
 209     messageAction->setCheckable(true);
 210 #endif
 211     tabGroup->addAction(messageAction);
 212
 213     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 214     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 215     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 216     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 217     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 218     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 219     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 220     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 221     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 222     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 223     connect(messageAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 224     connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));
 225
 226     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 227     quitAction->setToolTip(tr("Quit application"));
 228     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 229     quitAction->setMenuRole(QAction::QuitRole);
 230     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 231     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 232     aboutAction->setMenuRole(QAction::AboutRole);
 233     aboutQtAction = new QAction(tr("About &Qt"), this);
 234     aboutQtAction->setToolTip(tr("Show information about Qt"));
 235     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 236     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 237     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 238     optionsAction->setMenuRole(QAction::PreferencesRole);
 239     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 240     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 241     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 242     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 243     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 244     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 245     encryptWalletAction->setCheckable(true);
 246     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet"), this);
 247     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 248     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 249     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 250
 251     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 252     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 253     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 254     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 255     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 256     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 257     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 258     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 259 }
 260
 261 void BitcoinGUI::createMenuBar()
 262 {
 263 #ifdef Q_WS_MAC
 264     // Create a decoupled menu bar on Mac which stays even if the window is closed
 265     appMenuBar = new QMenuBar();
 266 #else
 267     // Get the main window's menu bar on other platforms
 268     appMenuBar = menuBar();
 269 #endif
 270
 271     // Configure the menus
 272     QMenu *file = appMenuBar->addMenu(tr("&File"));
 273     file->addAction(backupWalletAction);
 274     file->addAction(exportAction);
 275 #ifndef FIRST_CLASS_MESSAGING
 276     file->addAction(messageAction);
 277 #endif
 278     file->addSeparator();
 279     file->addAction(quitAction);
 280
 281     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 282     settings->addAction(encryptWalletAction);
 283     settings->addAction(changePassphraseAction);
 284     settings->addSeparator();
 285     settings->addAction(optionsAction);
 286
 287     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 288     help->addAction(aboutAction);
 289     help->addAction(aboutQtAction);
 290 }
 291
 292 void BitcoinGUI::createToolBars()
 293 {
 294     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 295     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 296     toolbar->addAction(overviewAction);
 297     toolbar->addAction(sendCoinsAction);
 298     toolbar->addAction(receiveCoinsAction);
 299     toolbar->addAction(historyAction);
 300     toolbar->addAction(addressBookAction);
 301 #ifdef FIRST_CLASS_MESSAGING
 302     toolbar->addAction(messageAction);
 303 #endif
 304
 305     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 306     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 307     toolbar2->addAction(exportAction);
 308 }
 309
 310 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 311 {
 312     this->clientModel = clientModel;
 313     if(clientModel)
 314     {
 315         if(clientModel->isTestNet())
 316         {
 317             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 318             setWindowTitle(title_testnet);
 319 #ifndef Q_WS_MAC
 320             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 321 #else
 322             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 323 #endif
 324             if(trayIcon)
 325             {
 326                 trayIcon->setToolTip(title_testnet);
 327                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 328             }
 329         }
 330
 331         // Keep up to date with client
 332         setNumConnections(clientModel->getNumConnections());
 333         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 334
 335         // don't display the sync. message, if we are not connected to the network
 336         if (clientModel->getNumConnections() > 0)
 337         {
 338             setNumBlocks(clientModel->getNumBlocks());
 339             connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 340         }
 341
 342         // Report errors from network/worker thread
 343         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 344     }
 345 }
 346
 347 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 348 {
 349     this->walletModel = walletModel;
 350     if(walletModel)
 351     {
 352         // Report errors from wallet thread
 353         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 354
 355         // Put transaction list in tabs
 356         transactionView->setModel(walletModel);
 357
 358         overviewPage->setModel(walletModel);
 359         addressBookPage->setModel(walletModel->getAddressTableModel());
 360         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 361         sendCoinsPage->setModel(walletModel);
 362         messagePage->setModel(walletModel);
 363
 364         setEncryptionStatus(walletModel->getEncryptionStatus());
 365         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 366
 367         // Balloon popup for new transaction
 368         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 369                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 370
 371         // Ask for passphrase if needed
 372         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 373     }
 374 }
 375
 376 void BitcoinGUI::createTrayIcon()
 377 {
 378     QMenu *trayIconMenu;
 379 #ifndef Q_WS_MAC
 380     trayIcon = new QSystemTrayIcon(this);
 381     trayIconMenu = new QMenu(this);
 382     trayIcon->setContextMenu(trayIconMenu);
 383     trayIcon->setToolTip(tr("Bitcoin client"));
 384     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 385     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 386             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 387     trayIcon->show();
 388 #else
 389     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 390     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 391     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 392     trayIconMenu = dockIconHandler->dockMenu();
 393 #endif
 394
 395     // Configuration of the tray icon (or dock icon) icon menu
 396     trayIconMenu->addAction(openBitcoinAction);
 397     trayIconMenu->addSeparator();
 398     trayIconMenu->addAction(messageAction);
 399 #ifndef FIRST_CLASS_MESSAGING
 400     trayIconMenu->addSeparator();
 401 #endif
 402     trayIconMenu->addAction(receiveCoinsAction);
 403     trayIconMenu->addAction(sendCoinsAction);
 404     trayIconMenu->addSeparator();
 405     trayIconMenu->addAction(optionsAction);
 406 #ifndef Q_WS_MAC // This is built-in on Mac
 407     trayIconMenu->addSeparator();
 408     trayIconMenu->addAction(quitAction);
 409 #endif
 410
 411     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 412 }
 413
 414 #ifndef Q_WS_MAC
 415 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 416 {
 417     if(reason == QSystemTrayIcon::Trigger)
 418     {
 419         // Click on system tray icon triggers "open bitcoin"
 420         openBitcoinAction->trigger();
 421     }
 422 }
 423 #endif
 424
 425 void BitcoinGUI::optionsClicked()
 426 {
 427     if(!clientModel || !clientModel->getOptionsModel())
 428         return;
 429     OptionsDialog dlg;
 430     dlg.setModel(clientModel->getOptionsModel());
 431     dlg.exec();
 432 }
 433
 434 void BitcoinGUI::aboutClicked()
 435 {
 436     AboutDialog dlg;
 437     dlg.setModel(clientModel);
 438     dlg.exec();
 439 }
 440
 441 void BitcoinGUI::setNumConnections(int count)
 442 {
 443     QString icon;
 444     switch(count)
 445     {
 446     case 0: icon = ":/icons/connect_0"; break;
 447     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 448     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 449     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 450     default: icon = ":/icons/connect_4"; break;
 451     }
 452     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 453     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 454 }
 455
 456 void BitcoinGUI::setNumBlocks(int count)
 457 {
 458     if(!clientModel)
 459         return;
 460     int nTotal = clientModel->getNumBlocksOfPeers();
 461     int nInitTotal = clientModel->getNumBlocksAtStartup();
 462     int nPercentageLeft = 100 - (count / (nTotal / 100));
 463     QString tooltip;
 464
 465     if(count < nTotal)
 466     {
 467         if (clientModel->getStatusBarWarnings() == "")
 468         {
 469             progressBarLabel->setVisible(true);
 470             progressBar->setVisible(true);
 471             progressBar->setFormat(tr("%v of %m blocks (%p%)"));
 472             progressBar->setAlignment(Qt::AlignCenter);
 473             // display absolute bar if the difference between count and nTotal is > 10%
 474             if (nPercentageLeft > 10)
 475             {
 476                 progressBarLabel->setText(tr("Synchronizing with network... (abs. display)"));
 477                 progressBar->setMaximum(nTotal);
 478                 progressBar->setValue(count);
 479             }
 480             else
 481             {
 482                 progressBarLabel->setText(tr("Synchronizing with network... (rel. display)"));
 483                 progressBar->setMaximum(nTotal - nInitTotal);
 484                 progressBar->setValue(count - nInitTotal);
 485             }
 486
 487         }
 488         else
 489         {
 490             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 491             progressBarLabel->setVisible(true);
 492             progressBar->setVisible(false);
 493         }
 494         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% left).").arg(count).arg(nTotal).arg(nPercentageLeft);
 495     }
 496     else
 497     {
 498         if (clientModel->getStatusBarWarnings() == "")
 499             progressBarLabel->setVisible(false);
 500         else
 501         {
 502             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 503             progressBarLabel->setVisible(true);
 504         }
 505         progressBar->setVisible(false);
 506         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 507     }
 508
 509     QDateTime now = QDateTime::currentDateTime();
 510     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 511     int secs = lastBlockDate.secsTo(now);
 512     QString text;
 513
 514     // Represent time from last generated block in human readable text
 515     if(secs <= 0)
 516     {
 517         // Fully up to date. Leave text empty.
 518     }
 519     else if(secs < 60)
 520     {
 521         text = tr("%n second(s) ago","",secs);
 522     }
 523     else if(secs < 60*60)
 524     {
 525         text = tr("%n minute(s) ago","",secs/60);
 526     }
 527     else if(secs < 24*60*60)
 528     {
 529         text = tr("%n hour(s) ago","",secs/(60*60));
 530     }
 531     else
 532     {
 533         text = tr("%n day(s) ago","",secs/(60*60*24));
 534     }
 535
 536     // Set icon state: spinning if catching up, tick otherwise
 537     if(secs < 30*60)
 538     {
 539         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 540         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 541     }
 542     else
 543     {
 544         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 545         labelBlocksIcon->setMovie(syncIconMovie);
 546         syncIconMovie->start();
 547     }
 548
 549     if(!text.isEmpty())
 550     {
 551         tooltip += QString("\n");
 552         tooltip += tr("Last received block was generated %1.").arg(text);
 553     }
 554
 555     labelBlocksIcon->setToolTip(tooltip);
 556     progressBarLabel->setToolTip(tooltip);
 557     progressBar->setToolTip(tooltip);
 558 }
 559
 560 void BitcoinGUI::refreshStatusBar()
 561 {
 562     /* Might display multiple times in the case of multiple alerts
 563     static QString prevStatusBar;
 564     QString newStatusBar = clientModel->getStatusBarWarnings();
 565     if (prevStatusBar != newStatusBar)
 566     {
 567         prevStatusBar = newStatusBar;
 568         error(tr("Network Alert"), newStatusBar);
 569     }*/
 570     setNumBlocks(clientModel->getNumBlocks());
 571 }
 572
 573 void BitcoinGUI::error(const QString &title, const QString &message)
 574 {
 575     // Report errors from network/worker thread
 576     notificator->notify(Notificator::Critical, title, message);
 577 }
 578
 579 void BitcoinGUI::changeEvent(QEvent *e)
 580 {
 581     QMainWindow::changeEvent(e);
 582 #ifndef Q_WS_MAC // Ignored on Mac
 583     if(e->type() == QEvent::WindowStateChange)
 584     {
 585         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 586         {
 587             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 588             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 589             {
 590                 QTimer::singleShot(0, this, SLOT(hide()));
 591                 e->ignore();
 592             }
 593         }
 594     }
 595 #endif
 596 }
 597
 598 void BitcoinGUI::closeEvent(QCloseEvent *event)
 599 {
 600     if(clientModel)
 601     {
 602 #ifndef Q_WS_MAC // Ignored on Mac
 603         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 604            !clientModel->getOptionsModel()->getMinimizeOnClose())
 605         {
 606             qApp->quit();
 607         }
 608 #endif
 609     }
 610     QMainWindow::closeEvent(event);
 611 }
 612
 613 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 614 {
 615     QString strMessage =
 616         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 617           "which goes to the nodes that process your transaction and helps to support the network.  "
 618           "Do you want to pay the fee?").arg(
 619                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 620     QMessageBox::StandardButton retval = QMessageBox::question(
 621           this, tr("Sending..."), strMessage,
 622           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 623     *payFee = (retval == QMessageBox::Yes);
 624 }
 625
 626 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 627 {
 628     if(!walletModel || !clientModel)
 629         return;
 630     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 631     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 632                     .data(Qt::EditRole).toULongLong();
 633     if(!clientModel->inInitialBlockDownload())
 634     {
 635         // On new transaction, make an info balloon
 636         // Unless the initial block download is in progress, to prevent balloon-spam
 637         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 638                         .data().toString();
 639         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 640                         .data().toString();
 641         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 642                         .data().toString();
 643         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 644                             TransactionTableModel::ToAddress, parent)
 645                         .data(Qt::DecorationRole));
 646
 647         notificator->notify(Notificator::Information,
 648                             (amount)<0 ? tr("Sent transaction") :
 649                                          tr("Incoming transaction"),
 650                               tr("Date: %1\n"
 651                                  "Amount: %2\n"
 652                                  "Type: %3\n"
 653                                  "Address: %4\n")
 654                               .arg(date)
 655                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 656                               .arg(type)
 657                               .arg(address), icon);
 658     }
 659 }
 660
 661 void BitcoinGUI::gotoOverviewPage()
 662 {
 663     overviewAction->setChecked(true);
 664     centralWidget->setCurrentWidget(overviewPage);
 665
 666     exportAction->setEnabled(false);
 667     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 668 }
 669
 670 void BitcoinGUI::gotoHistoryPage()
 671 {
 672     historyAction->setChecked(true);
 673     centralWidget->setCurrentWidget(transactionsPage);
 674
 675     exportAction->setEnabled(true);
 676     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 677     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 678 }
 679
 680 void BitcoinGUI::gotoAddressBookPage()
 681 {
 682     addressBookAction->setChecked(true);
 683     centralWidget->setCurrentWidget(addressBookPage);
 684
 685     exportAction->setEnabled(true);
 686     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 687     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 688 }
 689
 690 void BitcoinGUI::gotoReceiveCoinsPage()
 691 {
 692     receiveCoinsAction->setChecked(true);
 693     centralWidget->setCurrentWidget(receiveCoinsPage);
 694
 695     exportAction->setEnabled(true);
 696     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 697     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 698 }
 699
 700 void BitcoinGUI::gotoSendCoinsPage()
 701 {
 702     sendCoinsAction->setChecked(true);
 703     centralWidget->setCurrentWidget(sendCoinsPage);
 704
 705     exportAction->setEnabled(false);
 706     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 707 }
 708
 709 void BitcoinGUI::gotoMessagePage()
 710 {
 711 #ifdef FIRST_CLASS_MESSAGING
 712     messageAction->setChecked(true);
 713     centralWidget->setCurrentWidget(messagePage);
 714
 715     exportAction->setEnabled(false);
 716     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 717 #else
 718     messagePage->show();
 719     messagePage->setFocus();
 720 #endif
 721 }
 722
 723 void BitcoinGUI::gotoMessagePage(QString addr)
 724 {
 725     gotoMessagePage();
 726     messagePage->setAddress(addr);
 727 }
 728
 729 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 730 {
 731     // Accept only URLs
 732     if(event->mimeData()->hasUrls())
 733         event->acceptProposedAction();
 734 }
 735
 736 void BitcoinGUI::dropEvent(QDropEvent *event)
 737 {
 738     if(event->mimeData()->hasUrls())
 739     {
 740         gotoSendCoinsPage();
 741         QList<QUrl> urls = event->mimeData()->urls();
 742         foreach(const QUrl &url, urls)
 743         {
 744             sendCoinsPage->handleURL(url.toString());
 745         }
 746     }
 747
 748     event->acceptProposedAction();
 749 }
 750
 751 void BitcoinGUI::handleURL(QString strURL)
 752 {
 753     gotoSendCoinsPage();
 754     sendCoinsPage->handleURL(strURL);
 755
 756     if(!isActiveWindow())
 757         activateWindow();
 758
 759     showNormalIfMinimized();
 760 }
 761
 762 void BitcoinGUI::setEncryptionStatus(int status)
 763 {
 764     switch(status)
 765     {
 766     case WalletModel::Unencrypted:
 767         labelEncryptionIcon->hide();
 768         encryptWalletAction->setChecked(false);
 769         changePassphraseAction->setEnabled(false);
 770         encryptWalletAction->setEnabled(true);
 771         break;
 772     case WalletModel::Unlocked:
 773         labelEncryptionIcon->show();
 774         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 775         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 776         encryptWalletAction->setChecked(true);
 777         changePassphraseAction->setEnabled(true);
 778         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 779         break;
 780     case WalletModel::Locked:
 781         labelEncryptionIcon->show();
 782         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 783         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 784         encryptWalletAction->setChecked(true);
 785         changePassphraseAction->setEnabled(true);
 786         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 787         break;
 788     }
 789 }
 790
 791 void BitcoinGUI::encryptWallet(bool status)
 792 {
 793     if(!walletModel)
 794         return;
 795     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 796                                      AskPassphraseDialog::Decrypt, this);
 797     dlg.setModel(walletModel);
 798     dlg.exec();
 799
 800     setEncryptionStatus(walletModel->getEncryptionStatus());
 801 }
 802
 803 void BitcoinGUI::backupWallet()
 804 {
 805     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
 806     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
 807     if(!filename.isEmpty()) {
 808         if(!walletModel->backupWallet(filename)) {
 809             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
 810         }
 811     }
 812 }
 813
 814 void BitcoinGUI::changePassphrase()
 815 {
 816     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 817     dlg.setModel(walletModel);
 818     dlg.exec();
 819 }
 820
 821 void BitcoinGUI::unlockWallet()
 822 {
 823     if(!walletModel)
 824         return;
 825     // Unlock wallet when requested by wallet model
 826     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 827     {
 828         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 829         dlg.setModel(walletModel);
 830         dlg.exec();
 831     }
 832 }
 833
 834 void BitcoinGUI::showNormalIfMinimized()
 835 {
 836     if(!isVisible()) // Show, if hidden
 837         show();
 838     if(isMinimized()) // Unminimize, if minimized
 839         showNormal();
 840 }