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
   8 #include "checkpoints.h"
   9
  10 #include "bitcoingui.h"
  11 #include "transactiontablemodel.h"
  12 #include "addressbookpage.h"
  13 #include "sendcoinsdialog.h"
  14 #include "messagepage.h"
  15 #include "optionsdialog.h"
  16 #include "aboutdialog.h"
  17 #include "clientmodel.h"
  18 #include "walletmodel.h"
  19 #include "editaddressdialog.h"
  20 #include "optionsmodel.h"
  21 #include "transactiondescdialog.h"
  22 #include "addresstablemodel.h"
  23 #include "transactionview.h"
  24 #include "overviewpage.h"
  25 #include "bitcoinunits.h"
  26 #include "guiconstants.h"
  27 #include "askpassphrasedialog.h"
  28 #include "notificator.h"
  29
  30 #ifdef Q_WS_MAC
  31 #include "macdockiconhandler.h"
  32 #endif
  33
  34 #include <QApplication>
  35 #include <QMainWindow>
  36 #include <QMenuBar>
  37 #include <QMenu>
  38 #include <QIcon>
  39 #include <QTabWidget>
  40 #include <QVBoxLayout>
  41 #include <QToolBar>
  42 #include <QStatusBar>
  43 #include <QLabel>
  44 #include <QLineEdit>
  45 #include <QPushButton>
  46 #include <QLocale>
  47 #include <QMessageBox>
  48 #include <QProgressBar>
  49 #include <QStackedWidget>
  50 #include <QDateTime>
  51 #include <QMovie>
  52 #include <QFileDialog>
  53 #include <QDesktopServices>
  54 #include <QTimer>
  55
  56 #include <QDragEnterEvent>
  57 #include <QUrl>
  58
  59 #include <iostream>
  60
  61 BitcoinGUI::BitcoinGUI(QWidget *parent):
  62     QMainWindow(parent),
  63     clientModel(0),
  64     walletModel(0),
  65     encryptWalletAction(0),
  66     changePassphraseAction(0),
  67     aboutQtAction(0),
  68     trayIcon(0),
  69     notificator(0)
  70 {
  71     resize(850, 550);
  72     setWindowTitle(tr("Bitcoin Wallet"));
  73 #ifndef Q_WS_MAC
  74     setWindowIcon(QIcon(":icons/bitcoin"));
  75 #else
  76     setUnifiedTitleAndToolBarOnMac(true);
  77     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  78 #endif
  79     // Accept D&D of URIs
  80     setAcceptDrops(true);
  81
  82     // Create actions for the toolbar, menu bar and tray/dock icon
  83     createActions();
  84
  85     // Create application menu bar
  86     createMenuBar();
  87
  88     // Create the toolbars
  89     createToolBars();
  90
  91     // Create the tray icon (or setup the dock icon)
  92     createTrayIcon();
  93
  94     // Create tabs
  95     overviewPage = new OverviewPage();
  96
  97     transactionsPage = new QWidget(this);
  98     QVBoxLayout *vbox = new QVBoxLayout();
  99     transactionView = new TransactionView(this);
 100     vbox->addWidget(transactionView);
 101     transactionsPage->setLayout(vbox);
 102
 103     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 104
 105     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 106
 107     sendCoinsPage = new SendCoinsDialog(this);
 108
 109     messagePage = new MessagePage(this);
 110
 111     centralWidget = new QStackedWidget(this);
 112     centralWidget->addWidget(overviewPage);
 113     centralWidget->addWidget(transactionsPage);
 114     centralWidget->addWidget(addressBookPage);
 115     centralWidget->addWidget(receiveCoinsPage);
 116     centralWidget->addWidget(sendCoinsPage);
 117 #ifdef FIRST_CLASS_MESSAGING
 118     centralWidget->addWidget(messagePage);
 119 #endif
 120     setCentralWidget(centralWidget);
 121
 122     // Create status bar
 123     statusBar();
 124
 125     // Status bar notification icons
 126     QFrame *frameBlocks = new QFrame();
 127     frameBlocks->setContentsMargins(0,0,0,0);
 128     frameBlocks->setMinimumWidth(56);
 129     frameBlocks->setMaximumWidth(56);
 130     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 131     frameBlocksLayout->setContentsMargins(3,0,3,0);
 132     frameBlocksLayout->setSpacing(3);
 133     labelEncryptionIcon = new QLabel();
 134     labelConnectionsIcon = new QLabel();
 135     labelBlocksIcon = new QLabel();
 136     frameBlocksLayout->addStretch();
 137     frameBlocksLayout->addWidget(labelEncryptionIcon);
 138     frameBlocksLayout->addStretch();
 139     frameBlocksLayout->addWidget(labelConnectionsIcon);
 140     frameBlocksLayout->addStretch();
 141     frameBlocksLayout->addWidget(labelBlocksIcon);
 142     frameBlocksLayout->addStretch();
 143
 144     // Progress bar for blocks download
 145     progressBarLabel = new QLabel(tr("Synchronizing with network..."));
 146     progressBarLabel->setVisible(false);
 147     progressBar = new QProgressBar();
 148     progressBar->setToolTip(tr("Block chain synchronization in progress"));
 149     progressBar->setVisible(false);
 150
 151     statusBar()->addWidget(progressBarLabel);
 152     statusBar()->addWidget(progressBar);
 153     statusBar()->addPermanentWidget(frameBlocks);
 154
 155     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 156
 157     // Clicking on a transaction on the overview page simply sends you to transaction history page
 158     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 159
 160     // Doubleclicking on a transaction on the transaction history page shows details
 161     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 162
 163     gotoOverviewPage();
 164 }
 165
 166 BitcoinGUI::~BitcoinGUI()
 167 {
 168     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 169         trayIcon->hide();
 170 #ifdef Q_WS_MAC
 171     delete appMenuBar;
 172 #endif
 173 }
 174
 175 void BitcoinGUI::createActions()
 176 {
 177     QActionGroup *tabGroup = new QActionGroup(this);
 178
 179     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 180     overviewAction->setToolTip(tr("Show general overview of wallet"));
 181     overviewAction->setCheckable(true);
 182     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 183     tabGroup->addAction(overviewAction);
 184
 185     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 186     historyAction->setToolTip(tr("Browse transaction history"));
 187     historyAction->setCheckable(true);
 188     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 189     tabGroup->addAction(historyAction);
 190
 191     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 192     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 193     addressBookAction->setCheckable(true);
 194     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 195     tabGroup->addAction(addressBookAction);
 196
 197     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 198     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 199     receiveCoinsAction->setCheckable(true);
 200     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 201     tabGroup->addAction(receiveCoinsAction);
 202
 203     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 204     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 205     sendCoinsAction->setCheckable(true);
 206     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 207     tabGroup->addAction(sendCoinsAction);
 208
 209     messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
 210     messageAction->setToolTip(tr("Prove you control an address"));
 211 #ifdef FIRST_CLASS_MESSAGING
 212     messageAction->setCheckable(true);
 213 #endif
 214     tabGroup->addAction(messageAction);
 215
 216     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 217     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 218     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 219     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 220     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 221     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 222     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 223     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 224     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 225     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 226     connect(messageAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 227     connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));
 228
 229     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 230     quitAction->setToolTip(tr("Quit application"));
 231     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 232     quitAction->setMenuRole(QAction::QuitRole);
 233     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 234     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 235     aboutAction->setMenuRole(QAction::AboutRole);
 236     aboutQtAction = new QAction(tr("About &Qt"), this);
 237     aboutQtAction->setToolTip(tr("Show information about Qt"));
 238     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 239     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 240     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 241     optionsAction->setMenuRole(QAction::PreferencesRole);
 242     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 243     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 244     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 245     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 246     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 247     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 248     encryptWalletAction->setCheckable(true);
 249     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet"), this);
 250     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 251     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 252     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 253
 254     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 255     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 256     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 257     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 258     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 259     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 260     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 261     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 262 }
 263
 264 void BitcoinGUI::createMenuBar()
 265 {
 266 #ifdef Q_WS_MAC
 267     // Create a decoupled menu bar on Mac which stays even if the window is closed
 268     appMenuBar = new QMenuBar();
 269 #else
 270     // Get the main window's menu bar on other platforms
 271     appMenuBar = menuBar();
 272 #endif
 273
 274     // Configure the menus
 275     QMenu *file = appMenuBar->addMenu(tr("&File"));
 276     file->addAction(backupWalletAction);
 277     file->addAction(exportAction);
 278 #ifndef FIRST_CLASS_MESSAGING
 279     file->addAction(messageAction);
 280 #endif
 281     file->addSeparator();
 282     file->addAction(quitAction);
 283
 284     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 285     settings->addAction(encryptWalletAction);
 286     settings->addAction(changePassphraseAction);
 287     settings->addSeparator();
 288     settings->addAction(optionsAction);
 289
 290     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 291     help->addAction(aboutAction);
 292     help->addAction(aboutQtAction);
 293 }
 294
 295 void BitcoinGUI::createToolBars()
 296 {
 297     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 298     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 299     toolbar->addAction(overviewAction);
 300     toolbar->addAction(sendCoinsAction);
 301     toolbar->addAction(receiveCoinsAction);
 302     toolbar->addAction(historyAction);
 303     toolbar->addAction(addressBookAction);
 304 #ifdef FIRST_CLASS_MESSAGING
 305     toolbar->addAction(messageAction);
 306 #endif
 307
 308     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 309     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 310     toolbar2->addAction(exportAction);
 311 }
 312
 313 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 314 {
 315     this->clientModel = clientModel;
 316     if(clientModel)
 317     {
 318         if(clientModel->isTestNet())
 319         {
 320             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 321             setWindowTitle(title_testnet);
 322 #ifndef Q_WS_MAC
 323             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 324 #else
 325             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 326 #endif
 327             if(trayIcon)
 328             {
 329                 trayIcon->setToolTip(title_testnet);
 330                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 331             }
 332         }
 333
 334         // Keep up to date with client
 335         setNumConnections(clientModel->getNumConnections());
 336         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 337
 338         setNumBlocks(clientModel->getNumBlocks());
 339         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 340
 341         // Report errors from network/worker thread
 342         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 343     }
 344 }
 345
 346 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 347 {
 348     this->walletModel = walletModel;
 349     if(walletModel)
 350     {
 351         // Report errors from wallet thread
 352         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 353
 354         // Put transaction list in tabs
 355         transactionView->setModel(walletModel);
 356
 357         overviewPage->setModel(walletModel);
 358         addressBookPage->setModel(walletModel->getAddressTableModel());
 359         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 360         sendCoinsPage->setModel(walletModel);
 361         messagePage->setModel(walletModel);
 362
 363         setEncryptionStatus(walletModel->getEncryptionStatus());
 364         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 365
 366         // Balloon popup for new transaction
 367         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 368                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 369
 370         // Ask for passphrase if needed
 371         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 372     }
 373 }
 374
 375 void BitcoinGUI::createTrayIcon()
 376 {
 377     QMenu *trayIconMenu;
 378 #ifndef Q_WS_MAC
 379     trayIcon = new QSystemTrayIcon(this);
 380     trayIconMenu = new QMenu(this);
 381     trayIcon->setContextMenu(trayIconMenu);
 382     trayIcon->setToolTip("Bitcoin client");
 383     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 384     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 385             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 386     trayIcon->show();
 387 #else
 388     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 389     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 390     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 391     trayIconMenu = dockIconHandler->dockMenu();
 392 #endif
 393
 394     // Configuration of the tray icon (or dock icon) icon menu
 395     trayIconMenu->addAction(openBitcoinAction);
 396     trayIconMenu->addSeparator();
 397     trayIconMenu->addAction(messageAction);
 398 #ifndef FIRST_CLASS_MESSAGING
 399     trayIconMenu->addSeparator();
 400 #endif
 401     trayIconMenu->addAction(receiveCoinsAction);
 402     trayIconMenu->addAction(sendCoinsAction);
 403     trayIconMenu->addSeparator();
 404     trayIconMenu->addAction(optionsAction);
 405 #ifndef Q_WS_MAC // This is built-in on Mac
 406     trayIconMenu->addSeparator();
 407     trayIconMenu->addAction(quitAction);
 408 #endif
 409
 410     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 411 }
 412
 413 #ifndef Q_WS_MAC
 414 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 415 {
 416     if(reason == QSystemTrayIcon::Trigger)
 417     {
 418         // Click on system tray icon triggers "open bitcoin"
 419         openBitcoinAction->trigger();
 420     }
 421 }
 422 #endif
 423
 424 void BitcoinGUI::optionsClicked()
 425 {
 426     if(!clientModel || !clientModel->getOptionsModel())
 427         return;
 428     OptionsDialog dlg;
 429     dlg.setModel(clientModel->getOptionsModel());
 430     dlg.exec();
 431 }
 432
 433 void BitcoinGUI::aboutClicked()
 434 {
 435     AboutDialog dlg;
 436     dlg.setModel(clientModel);
 437     dlg.exec();
 438 }
 439
 440 void BitcoinGUI::setNumConnections(int count)
 441 {
 442     QString icon;
 443     switch(count)
 444     {
 445     case 0: icon = ":/icons/connect_0"; break;
 446     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 447     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 448     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 449     default: icon = ":/icons/connect_4"; break;
 450     }
 451     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 452     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 453 }
 454
 455 void BitcoinGUI::setNumBlocks(int count)
 456 {
 457     if(!clientModel)
 458         return;
 459     int total = clientModel->getNumBlocksOfPeers();
 460     QString tooltip;
 461
 462     if(count < total)
 463     {
 464         if (clientModel->getStatusBarWarnings() == "")
 465         {
 466             progressBarLabel->setVisible(true);
 467             progressBarLabel->setText(tr("Synchronizing with network..."));
 468             progressBar->setVisible(true);
 469             progressBar->setMaximum(total);
 470             progressBar->setValue(count);
 471         }
 472         else
 473         {
 474             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 475             progressBarLabel->setVisible(true);
 476             progressBar->setVisible(false);
 477         }
 478         tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
 479     }
 480     else
 481     {
 482         if (clientModel->getStatusBarWarnings() == "")
 483             progressBarLabel->setVisible(false);
 484         else
 485         {
 486             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 487             progressBarLabel->setVisible(true);
 488         }
 489         progressBar->setVisible(false);
 490         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 491     }
 492
 493     QDateTime now = QDateTime::currentDateTime();
 494     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 495     int secs = lastBlockDate.secsTo(now);
 496     QString text;
 497
 498     // Represent time from last generated block in human readable text
 499     if(secs <= 0)
 500     {
 501         // Fully up to date. Leave text empty.
 502     }
 503     else if(secs < 60)
 504     {
 505         text = tr("%n second(s) ago","",secs);
 506     }
 507     else if(secs < 60*60)
 508     {
 509         text = tr("%n minute(s) ago","",secs/60);
 510     }
 511     else if(secs < 24*60*60)
 512     {
 513         text = tr("%n hour(s) ago","",secs/(60*60));
 514     }
 515     else
 516     {
 517         text = tr("%n day(s) ago","",secs/(60*60*24));
 518     }
 519
 520     // Set icon state: spinning if catching up, tick otherwise
 521     if(secs < 90*60 && count >= Checkpoints::GetTotalBlocksEstimate())
 522     {
 523         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 524         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 525     }
 526     else
 527     {
 528         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 529         labelBlocksIcon->setMovie(syncIconMovie);
 530         syncIconMovie->start();
 531     }
 532
 533     if(!text.isEmpty())
 534     {
 535         tooltip += QString("\n");
 536         tooltip += tr("Last received block was generated %1.").arg(text);
 537     }
 538
 539     labelBlocksIcon->setToolTip(tooltip);
 540     progressBarLabel->setToolTip(tooltip);
 541     progressBar->setToolTip(tooltip);
 542 }
 543
 544 void BitcoinGUI::refreshStatusBar()
 545 {
 546     /* Might display multiple times in the case of multiple alerts
 547     static QString prevStatusBar;
 548     QString newStatusBar = clientModel->getStatusBarWarnings();
 549     if (prevStatusBar != newStatusBar)
 550     {
 551         prevStatusBar = newStatusBar;
 552         error(tr("Network Alert"), newStatusBar);
 553     }*/
 554     setNumBlocks(clientModel->getNumBlocks());
 555 }
 556
 557 bool HACK_SHUTDOWN = false;
 558
 559 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 560 {
 561     // Report errors from network/worker thread
 562     if (modal)
 563     {
 564         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 565         if (HACK_SHUTDOWN)
 566             QMetaObject::invokeMethod(QCoreApplication::instance(), "quit", Qt::QueuedConnection);
 567     } else {
 568         notificator->notify(Notificator::Critical, title, message);
 569     }
 570 }
 571
 572 void BitcoinGUI::changeEvent(QEvent *e)
 573 {
 574     QMainWindow::changeEvent(e);
 575 #ifndef Q_WS_MAC // Ignored on Mac
 576     if(e->type() == QEvent::WindowStateChange)
 577     {
 578         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 579         {
 580             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 581             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 582             {
 583                 QTimer::singleShot(0, this, SLOT(hide()));
 584                 e->ignore();
 585             }
 586         }
 587     }
 588 #endif
 589 }
 590
 591 void BitcoinGUI::closeEvent(QCloseEvent *event)
 592 {
 593     if(clientModel)
 594     {
 595 #ifndef Q_WS_MAC // Ignored on Mac
 596         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 597            !clientModel->getOptionsModel()->getMinimizeOnClose())
 598         {
 599             qApp->quit();
 600         }
 601 #endif
 602     }
 603     QMainWindow::closeEvent(event);
 604 }
 605
 606 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 607 {
 608     QString strMessage =
 609         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 610           "which goes to the nodes that process your transaction and helps to support the network.  "
 611           "Do you want to pay the fee?").arg(
 612                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 613     QMessageBox::StandardButton retval = QMessageBox::question(
 614           this, tr("Sending..."), strMessage,
 615           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 616     *payFee = (retval == QMessageBox::Yes);
 617 }
 618
 619 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 620 {
 621     if(!walletModel || !clientModel)
 622         return;
 623     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 624     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 625                     .data(Qt::EditRole).toULongLong();
 626     if(!clientModel->inInitialBlockDownload())
 627     {
 628         // On new transaction, make an info balloon
 629         // Unless the initial block download is in progress, to prevent balloon-spam
 630         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 631                         .data().toString();
 632         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 633                         .data().toString();
 634         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 635                         .data().toString();
 636         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 637                             TransactionTableModel::ToAddress, parent)
 638                         .data(Qt::DecorationRole));
 639
 640         notificator->notify(Notificator::Information,
 641                             (amount)<0 ? tr("Sent transaction") :
 642                                          tr("Incoming transaction"),
 643                               tr("Date: %1\n"
 644                                  "Amount: %2\n"
 645                                  "Type: %3\n"
 646                                  "Address: %4\n")
 647                               .arg(date)
 648                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 649                               .arg(type)
 650                               .arg(address), icon);
 651     }
 652 }
 653
 654 void BitcoinGUI::gotoOverviewPage()
 655 {
 656     overviewAction->setChecked(true);
 657     centralWidget->setCurrentWidget(overviewPage);
 658
 659     exportAction->setEnabled(false);
 660     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 661 }
 662
 663 void BitcoinGUI::gotoHistoryPage()
 664 {
 665     historyAction->setChecked(true);
 666     centralWidget->setCurrentWidget(transactionsPage);
 667
 668     exportAction->setEnabled(true);
 669     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 670     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 671 }
 672
 673 void BitcoinGUI::gotoAddressBookPage()
 674 {
 675     addressBookAction->setChecked(true);
 676     centralWidget->setCurrentWidget(addressBookPage);
 677
 678     exportAction->setEnabled(true);
 679     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 680     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 681 }
 682
 683 void BitcoinGUI::gotoReceiveCoinsPage()
 684 {
 685     receiveCoinsAction->setChecked(true);
 686     centralWidget->setCurrentWidget(receiveCoinsPage);
 687
 688     exportAction->setEnabled(true);
 689     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 690     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 691 }
 692
 693 void BitcoinGUI::gotoSendCoinsPage()
 694 {
 695     sendCoinsAction->setChecked(true);
 696     centralWidget->setCurrentWidget(sendCoinsPage);
 697
 698     exportAction->setEnabled(false);
 699     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 700 }
 701
 702 void BitcoinGUI::gotoMessagePage()
 703 {
 704 #ifdef FIRST_CLASS_MESSAGING
 705     messageAction->setChecked(true);
 706     centralWidget->setCurrentWidget(messagePage);
 707
 708     exportAction->setEnabled(false);
 709     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 710 #else
 711     messagePage->show();
 712     messagePage->setFocus();
 713 #endif
 714 }
 715
 716 void BitcoinGUI::gotoMessagePage(QString addr)
 717 {
 718     gotoMessagePage();
 719     messagePage->setAddress(addr);
 720 }
 721
 722 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 723 {
 724     // Accept only URIs
 725     if(event->mimeData()->hasUrls())
 726         event->acceptProposedAction();
 727 }
 728
 729 void BitcoinGUI::dropEvent(QDropEvent *event)
 730 {
 731     if(event->mimeData()->hasUrls())
 732     {
 733         gotoSendCoinsPage();
 734         QList<QUrl> uris = event->mimeData()->urls();
 735         foreach(const QUrl &uri, uris)
 736         {
 737             sendCoinsPage->handleURI(uri.toString());
 738         }
 739     }
 740
 741     event->acceptProposedAction();
 742 }
 743
 744 void BitcoinGUI::handleURI(QString strURI)
 745 {
 746     gotoSendCoinsPage();
 747     sendCoinsPage->handleURI(strURI);
 748
 749     if(!isActiveWindow())
 750         activateWindow();
 751
 752     showNormalIfMinimized();
 753 }
 754
 755 void BitcoinGUI::setEncryptionStatus(int status)
 756 {
 757     switch(status)
 758     {
 759     case WalletModel::Unencrypted:
 760         labelEncryptionIcon->hide();
 761         encryptWalletAction->setChecked(false);
 762         changePassphraseAction->setEnabled(false);
 763         encryptWalletAction->setEnabled(true);
 764         break;
 765     case WalletModel::Unlocked:
 766         labelEncryptionIcon->show();
 767         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 768         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 769         encryptWalletAction->setChecked(true);
 770         changePassphraseAction->setEnabled(true);
 771         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 772         break;
 773     case WalletModel::Locked:
 774         labelEncryptionIcon->show();
 775         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 776         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 777         encryptWalletAction->setChecked(true);
 778         changePassphraseAction->setEnabled(true);
 779         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 780         break;
 781     }
 782 }
 783
 784 void BitcoinGUI::encryptWallet(bool status)
 785 {
 786     if(!walletModel)
 787         return;
 788     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 789                                      AskPassphraseDialog::Decrypt, this);
 790     dlg.setModel(walletModel);
 791     dlg.exec();
 792
 793     setEncryptionStatus(walletModel->getEncryptionStatus());
 794 }
 795
 796 void BitcoinGUI::backupWallet()
 797 {
 798     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
 799     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
 800     if(!filename.isEmpty()) {
 801         if(!walletModel->backupWallet(filename)) {
 802             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
 803         }
 804     }
 805 }
 806
 807 void BitcoinGUI::changePassphrase()
 808 {
 809     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 810     dlg.setModel(walletModel);
 811     dlg.exec();
 812 }
 813
 814 void BitcoinGUI::unlockWallet()
 815 {
 816     if(!walletModel)
 817         return;
 818     // Unlock wallet when requested by wallet model
 819     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 820     {
 821         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 822         dlg.setModel(walletModel);
 823         dlg.exec();
 824     }
 825 }
 826
 827 void BitcoinGUI::showNormalIfMinimized()
 828 {
 829     if(!isVisible()) // Show, if hidden
 830         show();
 831     if(isMinimized()) // Unminimize, if minimized
 832         showNormal();
 833 }