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 and label for blocks download
 142     progressBarLabel = new QLabel();
 143     progressBarLabel->setVisible(false);
 144     progressBar = new QProgressBar();
 145     progressBar->setVisible(false);
 146
 147     statusBar()->addWidget(progressBarLabel);
 148     statusBar()->addWidget(progressBar);
 149     statusBar()->addPermanentWidget(frameBlocks);
 150
 151     // define OS independent progress bar style (has to be after addWidget(), otherwise we crash)
 152     progressBar->setStyleSheet("QProgressBar { background-color: transparent; border: 1px solid grey; border-radius: 2px; padding: 1px; text-align: center; } QProgressBar::chunk { background: QLinearGradient(x1: 0, y1: 0, x2: 1, y2: 0, stop: 0 #FF8000, stop: 1 orange); margin: 0px; }");
 153
 154     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 155
 156     // Clicking on a transaction on the overview page simply sends you to transaction history page
 157     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 158
 159     // Doubleclicking on a transaction on the transaction history page shows details
 160     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 161
 162     gotoOverviewPage();
 163 }
 164
 165 BitcoinGUI::~BitcoinGUI()
 166 {
 167     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 168         trayIcon->hide();
 169 #ifdef Q_WS_MAC
 170     delete appMenuBar;
 171 #endif
 172 }
 173
 174 void BitcoinGUI::createActions()
 175 {
 176     QActionGroup *tabGroup = new QActionGroup(this);
 177
 178     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 179     overviewAction->setToolTip(tr("Show general overview of wallet"));
 180     overviewAction->setCheckable(true);
 181     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 182     tabGroup->addAction(overviewAction);
 183
 184     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 185     historyAction->setToolTip(tr("Browse transaction history"));
 186     historyAction->setCheckable(true);
 187     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 188     tabGroup->addAction(historyAction);
 189
 190     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 191     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 192     addressBookAction->setCheckable(true);
 193     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 194     tabGroup->addAction(addressBookAction);
 195
 196     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 197     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 198     receiveCoinsAction->setCheckable(true);
 199     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 200     tabGroup->addAction(receiveCoinsAction);
 201
 202     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 203     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 204     sendCoinsAction->setCheckable(true);
 205     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 206     tabGroup->addAction(sendCoinsAction);
 207
 208     messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
 209     messageAction->setToolTip(tr("Prove you control an address"));
 210 #ifdef FIRST_CLASS_MESSAGING
 211     messageAction->setCheckable(true);
 212 #endif
 213     tabGroup->addAction(messageAction);
 214
 215     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 216     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 217     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 218     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 219     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 220     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 221     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 222     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 223     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 224     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 225     connect(messageAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 226     connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));
 227
 228     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 229     quitAction->setToolTip(tr("Quit application"));
 230     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 231     quitAction->setMenuRole(QAction::QuitRole);
 232     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 233     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 234     aboutAction->setMenuRole(QAction::AboutRole);
 235     aboutQtAction = new QAction(tr("About &Qt"), this);
 236     aboutQtAction->setToolTip(tr("Show information about Qt"));
 237     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 238     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 239     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 240     optionsAction->setMenuRole(QAction::PreferencesRole);
 241     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 242     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 243     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 244     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 245     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 246     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 247     encryptWalletAction->setCheckable(true);
 248     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet"), this);
 249     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 250     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 251     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 252
 253     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 254     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 255     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 256     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 257     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 258     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 259     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 260     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 261 }
 262
 263 void BitcoinGUI::createMenuBar()
 264 {
 265 #ifdef Q_WS_MAC
 266     // Create a decoupled menu bar on Mac which stays even if the window is closed
 267     appMenuBar = new QMenuBar();
 268 #else
 269     // Get the main window's menu bar on other platforms
 270     appMenuBar = menuBar();
 271 #endif
 272
 273     // Configure the menus
 274     QMenu *file = appMenuBar->addMenu(tr("&File"));
 275     file->addAction(backupWalletAction);
 276     file->addAction(exportAction);
 277 #ifndef FIRST_CLASS_MESSAGING
 278     file->addAction(messageAction);
 279 #endif
 280     file->addSeparator();
 281     file->addAction(quitAction);
 282
 283     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 284     settings->addAction(encryptWalletAction);
 285     settings->addAction(changePassphraseAction);
 286     settings->addSeparator();
 287     settings->addAction(optionsAction);
 288
 289     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 290     help->addAction(aboutAction);
 291     help->addAction(aboutQtAction);
 292 }
 293
 294 void BitcoinGUI::createToolBars()
 295 {
 296     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 297     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 298     toolbar->addAction(overviewAction);
 299     toolbar->addAction(sendCoinsAction);
 300     toolbar->addAction(receiveCoinsAction);
 301     toolbar->addAction(historyAction);
 302     toolbar->addAction(addressBookAction);
 303 #ifdef FIRST_CLASS_MESSAGING
 304     toolbar->addAction(messageAction);
 305 #endif
 306
 307     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 308     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 309     toolbar2->addAction(exportAction);
 310 }
 311
 312 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 313 {
 314     this->clientModel = clientModel;
 315     if(clientModel)
 316     {
 317         if(clientModel->isTestNet())
 318         {
 319             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 320             setWindowTitle(title_testnet);
 321 #ifndef Q_WS_MAC
 322             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 323 #else
 324             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 325 #endif
 326             if(trayIcon)
 327             {
 328                 trayIcon->setToolTip(title_testnet);
 329                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 330             }
 331         }
 332
 333         // Keep up to date with client
 334         setNumConnections(clientModel->getNumConnections());
 335         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 336
 337         setNumBlocks(clientModel->getNumBlocks());
 338         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 339
 340         // Report errors from network/worker thread
 341         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 342     }
 343 }
 344
 345 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 346 {
 347     this->walletModel = walletModel;
 348     if(walletModel)
 349     {
 350         // Report errors from wallet thread
 351         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 352
 353         // Put transaction list in tabs
 354         transactionView->setModel(walletModel);
 355
 356         overviewPage->setModel(walletModel);
 357         addressBookPage->setModel(walletModel->getAddressTableModel());
 358         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 359         sendCoinsPage->setModel(walletModel);
 360         messagePage->setModel(walletModel);
 361
 362         setEncryptionStatus(walletModel->getEncryptionStatus());
 363         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 364
 365         // Balloon popup for new transaction
 366         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 367                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 368
 369         // Ask for passphrase if needed
 370         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 371     }
 372 }
 373
 374 void BitcoinGUI::createTrayIcon()
 375 {
 376     QMenu *trayIconMenu;
 377 #ifndef Q_WS_MAC
 378     trayIcon = new QSystemTrayIcon(this);
 379     trayIconMenu = new QMenu(this);
 380     trayIcon->setContextMenu(trayIconMenu);
 381     trayIcon->setToolTip(tr("Bitcoin client"));
 382     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 383     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 384             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 385     trayIcon->show();
 386 #else
 387     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 388     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 389     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 390     trayIconMenu = dockIconHandler->dockMenu();
 391 #endif
 392
 393     // Configuration of the tray icon (or dock icon) icon menu
 394     trayIconMenu->addAction(openBitcoinAction);
 395     trayIconMenu->addSeparator();
 396     trayIconMenu->addAction(messageAction);
 397 #ifndef FIRST_CLASS_MESSAGING
 398     trayIconMenu->addSeparator();
 399 #endif
 400     trayIconMenu->addAction(receiveCoinsAction);
 401     trayIconMenu->addAction(sendCoinsAction);
 402     trayIconMenu->addSeparator();
 403     trayIconMenu->addAction(optionsAction);
 404 #ifndef Q_WS_MAC // This is built-in on Mac
 405     trayIconMenu->addSeparator();
 406     trayIconMenu->addAction(quitAction);
 407 #endif
 408
 409     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 410 }
 411
 412 #ifndef Q_WS_MAC
 413 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 414 {
 415     if(reason == QSystemTrayIcon::Trigger)
 416     {
 417         // Click on system tray icon triggers "open bitcoin"
 418         openBitcoinAction->trigger();
 419     }
 420 }
 421 #endif
 422
 423 void BitcoinGUI::optionsClicked()
 424 {
 425     if(!clientModel || !clientModel->getOptionsModel())
 426         return;
 427     OptionsDialog dlg;
 428     dlg.setModel(clientModel->getOptionsModel());
 429     dlg.exec();
 430 }
 431
 432 void BitcoinGUI::aboutClicked()
 433 {
 434     AboutDialog dlg;
 435     dlg.setModel(clientModel);
 436     dlg.exec();
 437 }
 438
 439 void BitcoinGUI::setNumConnections(int count)
 440 {
 441     QString icon;
 442     switch(count)
 443     {
 444     case 0: icon = ":/icons/connect_0"; break;
 445     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 446     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 447     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 448     default: icon = ":/icons/connect_4"; break;
 449     }
 450     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 451     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 452 }
 453
 454 void BitcoinGUI::setNumBlocks(int count)
 455 {
 456     // don't show / hide progressBar and it's label if we have no connection(s) to the network
 457     if (!clientModel || clientModel->getNumConnections() == 0)
 458     {
 459         progressBarLabel->setVisible(false);
 460         progressBar->setVisible(false);
 461
 462         return;
 463     }
 464
 465     int nTotalBlocks = clientModel->getNumBlocksOfPeers();
 466     QString tooltip;
 467
 468     if(count < nTotalBlocks)
 469     {
 470         int nRemainingBlocks = nTotalBlocks - count;
 471         int nPercentageDone = (count / ((nTotalBlocks / 100) + 0.5f));
 472
 473         if (clientModel->getStatusBarWarnings() == "")
 474         {
 475             progressBarLabel->setText(tr("Synchronizing with network..."));
 476             progressBarLabel->setVisible(true);
 477             progressBar->setFormat("~" + QString::number(nRemainingBlocks)+ tr(" blocks remaining"));
 478             progressBar->setMaximum(nTotalBlocks);
 479             progressBar->setValue(count);
 480             progressBar->setVisible(true);
 481         }
 482         else
 483         {
 484             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 485             progressBarLabel->setVisible(true);
 486             progressBar->setVisible(false);
 487         }
 488         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone);
 489     }
 490     else
 491     {
 492         if (clientModel->getStatusBarWarnings() == "")
 493             progressBarLabel->setVisible(false);
 494         else
 495         {
 496             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 497             progressBarLabel->setVisible(true);
 498         }
 499         progressBar->setVisible(false);
 500         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 501     }
 502
 503     QDateTime now = QDateTime::currentDateTime();
 504     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 505     int secs = lastBlockDate.secsTo(now);
 506     QString text;
 507
 508     // Represent time from last generated block in human readable text
 509     if(secs <= 0)
 510     {
 511         // Fully up to date. Leave text empty.
 512     }
 513     else if(secs < 60)
 514     {
 515         text = tr("%n second(s) ago","",secs);
 516     }
 517     else if(secs < 60*60)
 518     {
 519         text = tr("%n minute(s) ago","",secs/60);
 520     }
 521     else if(secs < 24*60*60)
 522     {
 523         text = tr("%n hour(s) ago","",secs/(60*60));
 524     }
 525     else
 526     {
 527         text = tr("%n day(s) ago","",secs/(60*60*24));
 528     }
 529
 530     // Set icon state: spinning if catching up, tick otherwise
 531     if(secs < 30*60)
 532     {
 533         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 534         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 535     }
 536     else
 537     {
 538         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 539         labelBlocksIcon->setMovie(syncIconMovie);
 540         syncIconMovie->start();
 541     }
 542
 543     if(!text.isEmpty())
 544     {
 545         tooltip += QString("\n");
 546         tooltip += tr("Last received block was generated %1.").arg(text);
 547     }
 548
 549     labelBlocksIcon->setToolTip(tooltip);
 550     progressBarLabel->setToolTip(tooltip);
 551     progressBar->setToolTip(tooltip);
 552 }
 553
 554 void BitcoinGUI::refreshStatusBar()
 555 {
 556     /* Might display multiple times in the case of multiple alerts
 557     static QString prevStatusBar;
 558     QString newStatusBar = clientModel->getStatusBarWarnings();
 559     if (prevStatusBar != newStatusBar)
 560     {
 561         prevStatusBar = newStatusBar;
 562         error(tr("Network Alert"), newStatusBar);
 563     }*/
 564     setNumBlocks(clientModel->getNumBlocks());
 565 }
 566
 567 void BitcoinGUI::error(const QString &title, const QString &message)
 568 {
 569     // Report errors from network/worker thread
 570     notificator->notify(Notificator::Critical, title, message);
 571 }
 572
 573 void BitcoinGUI::changeEvent(QEvent *e)
 574 {
 575     QMainWindow::changeEvent(e);
 576 #ifndef Q_WS_MAC // Ignored on Mac
 577     if(e->type() == QEvent::WindowStateChange)
 578     {
 579         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 580         {
 581             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 582             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 583             {
 584                 QTimer::singleShot(0, this, SLOT(hide()));
 585                 e->ignore();
 586             }
 587         }
 588     }
 589 #endif
 590 }
 591
 592 void BitcoinGUI::closeEvent(QCloseEvent *event)
 593 {
 594     if(clientModel)
 595     {
 596 #ifndef Q_WS_MAC // Ignored on Mac
 597         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 598            !clientModel->getOptionsModel()->getMinimizeOnClose())
 599         {
 600             qApp->quit();
 601         }
 602 #endif
 603     }
 604     QMainWindow::closeEvent(event);
 605 }
 606
 607 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 608 {
 609     QString strMessage =
 610         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 611           "which goes to the nodes that process your transaction and helps to support the network.  "
 612           "Do you want to pay the fee?").arg(
 613                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 614     QMessageBox::StandardButton retval = QMessageBox::question(
 615           this, tr("Sending..."), strMessage,
 616           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 617     *payFee = (retval == QMessageBox::Yes);
 618 }
 619
 620 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 621 {
 622     if(!walletModel || !clientModel)
 623         return;
 624     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 625     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 626                     .data(Qt::EditRole).toULongLong();
 627     if(!clientModel->inInitialBlockDownload())
 628     {
 629         // On new transaction, make an info balloon
 630         // Unless the initial block download is in progress, to prevent balloon-spam
 631         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 632                         .data().toString();
 633         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 634                         .data().toString();
 635         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 636                         .data().toString();
 637         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 638                             TransactionTableModel::ToAddress, parent)
 639                         .data(Qt::DecorationRole));
 640
 641         notificator->notify(Notificator::Information,
 642                             (amount)<0 ? tr("Sent transaction") :
 643                                          tr("Incoming transaction"),
 644                               tr("Date: %1\n"
 645                                  "Amount: %2\n"
 646                                  "Type: %3\n"
 647                                  "Address: %4\n")
 648                               .arg(date)
 649                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 650                               .arg(type)
 651                               .arg(address), icon);
 652     }
 653 }
 654
 655 void BitcoinGUI::gotoOverviewPage()
 656 {
 657     overviewAction->setChecked(true);
 658     centralWidget->setCurrentWidget(overviewPage);
 659
 660     exportAction->setEnabled(false);
 661     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 662 }
 663
 664 void BitcoinGUI::gotoHistoryPage()
 665 {
 666     historyAction->setChecked(true);
 667     centralWidget->setCurrentWidget(transactionsPage);
 668
 669     exportAction->setEnabled(true);
 670     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 671     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 672 }
 673
 674 void BitcoinGUI::gotoAddressBookPage()
 675 {
 676     addressBookAction->setChecked(true);
 677     centralWidget->setCurrentWidget(addressBookPage);
 678
 679     exportAction->setEnabled(true);
 680     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 681     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 682 }
 683
 684 void BitcoinGUI::gotoReceiveCoinsPage()
 685 {
 686     receiveCoinsAction->setChecked(true);
 687     centralWidget->setCurrentWidget(receiveCoinsPage);
 688
 689     exportAction->setEnabled(true);
 690     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 691     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 692 }
 693
 694 void BitcoinGUI::gotoSendCoinsPage()
 695 {
 696     sendCoinsAction->setChecked(true);
 697     centralWidget->setCurrentWidget(sendCoinsPage);
 698
 699     exportAction->setEnabled(false);
 700     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 701 }
 702
 703 void BitcoinGUI::gotoMessagePage()
 704 {
 705 #ifdef FIRST_CLASS_MESSAGING
 706     messageAction->setChecked(true);
 707     centralWidget->setCurrentWidget(messagePage);
 708
 709     exportAction->setEnabled(false);
 710     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 711 #else
 712     messagePage->show();
 713     messagePage->setFocus();
 714 #endif
 715 }
 716
 717 void BitcoinGUI::gotoMessagePage(QString addr)
 718 {
 719     gotoMessagePage();
 720     messagePage->setAddress(addr);
 721 }
 722
 723 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 724 {
 725     // Accept only URLs
 726     if(event->mimeData()->hasUrls())
 727         event->acceptProposedAction();
 728 }
 729
 730 void BitcoinGUI::dropEvent(QDropEvent *event)
 731 {
 732     if(event->mimeData()->hasUrls())
 733     {
 734         gotoSendCoinsPage();
 735         QList<QUrl> urls = event->mimeData()->urls();
 736         foreach(const QUrl &url, urls)
 737         {
 738             sendCoinsPage->handleURL(url.toString());
 739         }
 740     }
 741
 742     event->acceptProposedAction();
 743 }
 744
 745 void BitcoinGUI::handleURL(QString strURL)
 746 {
 747     gotoSendCoinsPage();
 748     sendCoinsPage->handleURL(strURL);
 749
 750     if(!isActiveWindow())
 751         activateWindow();
 752
 753     showNormalIfMinimized();
 754 }
 755
 756 void BitcoinGUI::setEncryptionStatus(int status)
 757 {
 758     switch(status)
 759     {
 760     case WalletModel::Unencrypted:
 761         labelEncryptionIcon->hide();
 762         encryptWalletAction->setChecked(false);
 763         changePassphraseAction->setEnabled(false);
 764         encryptWalletAction->setEnabled(true);
 765         break;
 766     case WalletModel::Unlocked:
 767         labelEncryptionIcon->show();
 768         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 769         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 770         encryptWalletAction->setChecked(true);
 771         changePassphraseAction->setEnabled(true);
 772         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 773         break;
 774     case WalletModel::Locked:
 775         labelEncryptionIcon->show();
 776         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 777         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 778         encryptWalletAction->setChecked(true);
 779         changePassphraseAction->setEnabled(true);
 780         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 781         break;
 782     }
 783 }
 784
 785 void BitcoinGUI::encryptWallet(bool status)
 786 {
 787     if(!walletModel)
 788         return;
 789     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 790                                      AskPassphraseDialog::Decrypt, this);
 791     dlg.setModel(walletModel);
 792     dlg.exec();
 793
 794     setEncryptionStatus(walletModel->getEncryptionStatus());
 795 }
 796
 797 void BitcoinGUI::backupWallet()
 798 {
 799     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
 800     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
 801     if(!filename.isEmpty()) {
 802         if(!walletModel->backupWallet(filename)) {
 803             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
 804         }
 805     }
 806 }
 807
 808 void BitcoinGUI::changePassphrase()
 809 {
 810     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 811     dlg.setModel(walletModel);
 812     dlg.exec();
 813 }
 814
 815 void BitcoinGUI::unlockWallet()
 816 {
 817     if(!walletModel)
 818         return;
 819     // Unlock wallet when requested by wallet model
 820     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 821     {
 822         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 823         dlg.setModel(walletModel);
 824         dlg.exec();
 825     }
 826 }
 827
 828 void BitcoinGUI::showNormalIfMinimized()
 829 {
 830     if(!isVisible()) // Show, if hidden
 831         show();
 832     if(isMinimized()) // Unminimize, if minimized
 833         showNormal();
 834 }