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 #include "guiutil.h"
  27
  28 #ifdef Q_WS_MAC
  29 #include "macdockiconhandler.h"
  30 #endif
  31
  32 #include <QApplication>
  33 #include <QMainWindow>
  34 #include <QMenuBar>
  35 #include <QMenu>
  36 #include <QIcon>
  37 #include <QTabWidget>
  38 #include <QVBoxLayout>
  39 #include <QToolBar>
  40 #include <QStatusBar>
  41 #include <QLabel>
  42 #include <QLineEdit>
  43 #include <QPushButton>
  44 #include <QLocale>
  45 #include <QMessageBox>
  46 #include <QProgressBar>
  47 #include <QStackedWidget>
  48 #include <QDateTime>
  49 #include <QMovie>
  50 #include <QFileDialog>
  51 #include <QDesktopServices>
  52 #include <QTimer>
  53
  54 #include <QDragEnterEvent>
  55 #include <QUrl>
  56
  57 #include <iostream>
  58
  59 BitcoinGUI::BitcoinGUI(QWidget *parent):
  60     QMainWindow(parent),
  61     clientModel(0),
  62     walletModel(0),
  63     encryptWalletAction(0),
  64     changePassphraseAction(0),
  65     aboutQtAction(0),
  66     trayIcon(0),
  67     notificator(0)
  68 {
  69     resize(850, 550);
  70     setWindowTitle(tr("Bitcoin Wallet"));
  71 #ifndef Q_WS_MAC
  72     setWindowIcon(QIcon(":icons/bitcoin"));
  73 #else
  74     setUnifiedTitleAndToolBarOnMac(true);
  75     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  76 #endif
  77     // Accept D&D of URIs
  78     setAcceptDrops(true);
  79
  80     // Create actions for the toolbar, menu bar and tray/dock icon
  81     createActions();
  82
  83     // Create application menu bar
  84     createMenuBar();
  85
  86     // Create the toolbars
  87     createToolBars();
  88
  89     // Create the tray icon (or setup the dock icon)
  90     createTrayIcon();
  91
  92     // Create tabs
  93     overviewPage = new OverviewPage();
  94
  95     transactionsPage = new QWidget(this);
  96     QVBoxLayout *vbox = new QVBoxLayout();
  97     transactionView = new TransactionView(this);
  98     vbox->addWidget(transactionView);
  99     transactionsPage->setLayout(vbox);
 100
 101     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 102
 103     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 104
 105     sendCoinsPage = new SendCoinsDialog(this);
 106
 107     messagePage = new MessagePage(this);
 108
 109     centralWidget = new QStackedWidget(this);
 110     centralWidget->addWidget(overviewPage);
 111     centralWidget->addWidget(transactionsPage);
 112     centralWidget->addWidget(addressBookPage);
 113     centralWidget->addWidget(receiveCoinsPage);
 114     centralWidget->addWidget(sendCoinsPage);
 115 #ifdef FIRST_CLASS_MESSAGING
 116     centralWidget->addWidget(messagePage);
 117 #endif
 118     setCentralWidget(centralWidget);
 119
 120     // Create status bar
 121     statusBar();
 122
 123     // Status bar notification icons
 124     QFrame *frameBlocks = new QFrame();
 125     frameBlocks->setContentsMargins(0,0,0,0);
 126     frameBlocks->setMinimumWidth(56);
 127     frameBlocks->setMaximumWidth(56);
 128     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 129     frameBlocksLayout->setContentsMargins(3,0,3,0);
 130     frameBlocksLayout->setSpacing(3);
 131     labelEncryptionIcon = new QLabel();
 132     labelConnectionsIcon = new QLabel();
 133     labelBlocksIcon = new QLabel();
 134     frameBlocksLayout->addStretch();
 135     frameBlocksLayout->addWidget(labelEncryptionIcon);
 136     frameBlocksLayout->addStretch();
 137     frameBlocksLayout->addWidget(labelConnectionsIcon);
 138     frameBlocksLayout->addStretch();
 139     frameBlocksLayout->addWidget(labelBlocksIcon);
 140     frameBlocksLayout->addStretch();
 141
 142     // Progress bar and label for blocks download
 143     progressBarLabel = new QLabel();
 144     progressBarLabel->setVisible(false);
 145     progressBar = new QProgressBar();
 146     progressBar->setVisible(false);
 147
 148     statusBar()->addWidget(progressBarLabel);
 149     statusBar()->addWidget(progressBar);
 150     statusBar()->addPermanentWidget(frameBlocks);
 151
 152     // define OS independent progress bar style (has to be placed after addWidget(), otherwise we crash)
 153     // we did this, because with some OSes default style, text on the progress bar is unreadable
 154     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; }");
 155
 156     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 157
 158     // Clicking on a transaction on the overview page simply sends you to transaction history page
 159     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 160
 161     // Doubleclicking on a transaction on the transaction history page shows details
 162     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 163
 164     gotoOverviewPage();
 165 }
 166
 167 BitcoinGUI::~BitcoinGUI()
 168 {
 169     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 170         trayIcon->hide();
 171 #ifdef Q_WS_MAC
 172     delete appMenuBar;
 173 #endif
 174 }
 175
 176 void BitcoinGUI::createActions()
 177 {
 178     QActionGroup *tabGroup = new QActionGroup(this);
 179
 180     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 181     overviewAction->setToolTip(tr("Show general overview of wallet"));
 182     overviewAction->setCheckable(true);
 183     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 184     tabGroup->addAction(overviewAction);
 185
 186     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 187     historyAction->setToolTip(tr("Browse transaction history"));
 188     historyAction->setCheckable(true);
 189     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 190     tabGroup->addAction(historyAction);
 191
 192     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 193     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 194     addressBookAction->setCheckable(true);
 195     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 196     tabGroup->addAction(addressBookAction);
 197
 198     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 199     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 200     receiveCoinsAction->setCheckable(true);
 201     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 202     tabGroup->addAction(receiveCoinsAction);
 203
 204     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 205     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 206     sendCoinsAction->setCheckable(true);
 207     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 208     tabGroup->addAction(sendCoinsAction);
 209
 210     messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
 211     messageAction->setToolTip(tr("Prove you control an address"));
 212 #ifdef FIRST_CLASS_MESSAGING
 213     messageAction->setCheckable(true);
 214 #endif
 215     tabGroup->addAction(messageAction);
 216
 217     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 218     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 219     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 220     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 221     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 222     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 223     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 224     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 225     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 226     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 227     connect(messageAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 228     connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));
 229
 230     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 231     quitAction->setToolTip(tr("Quit application"));
 232     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 233     quitAction->setMenuRole(QAction::QuitRole);
 234     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 235     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 236     aboutAction->setMenuRole(QAction::AboutRole);
 237     aboutQtAction = new QAction(tr("About &Qt"), this);
 238     aboutQtAction->setToolTip(tr("Show information about Qt"));
 239     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 240     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 241     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 242     optionsAction->setMenuRole(QAction::PreferencesRole);
 243     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("Show/Hide &Bitcoin"), this);
 244     toggleHideAction->setToolTip(tr("Show or hide the Bitcoin window"));
 245     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 246     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 247     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 248     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 249     encryptWalletAction->setCheckable(true);
 250     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet"), this);
 251     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 252     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 253     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 254
 255     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 256     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 257     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 258     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 259     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 260     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 261     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 262     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 263 }
 264
 265 void BitcoinGUI::createMenuBar()
 266 {
 267 #ifdef Q_WS_MAC
 268     // Create a decoupled menu bar on Mac which stays even if the window is closed
 269     appMenuBar = new QMenuBar();
 270 #else
 271     // Get the main window's menu bar on other platforms
 272     appMenuBar = menuBar();
 273 #endif
 274
 275     // Configure the menus
 276     QMenu *file = appMenuBar->addMenu(tr("&File"));
 277     file->addAction(backupWalletAction);
 278     file->addAction(exportAction);
 279 #ifndef FIRST_CLASS_MESSAGING
 280     file->addAction(messageAction);
 281 #endif
 282     file->addSeparator();
 283     file->addAction(quitAction);
 284
 285     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 286     settings->addAction(encryptWalletAction);
 287     settings->addAction(changePassphraseAction);
 288     settings->addSeparator();
 289     settings->addAction(optionsAction);
 290
 291     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 292     help->addAction(aboutAction);
 293     help->addAction(aboutQtAction);
 294 }
 295
 296 void BitcoinGUI::createToolBars()
 297 {
 298     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 299     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 300     toolbar->addAction(overviewAction);
 301     toolbar->addAction(sendCoinsAction);
 302     toolbar->addAction(receiveCoinsAction);
 303     toolbar->addAction(historyAction);
 304     toolbar->addAction(addressBookAction);
 305 #ifdef FIRST_CLASS_MESSAGING
 306     toolbar->addAction(messageAction);
 307 #endif
 308
 309     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 310     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 311     toolbar2->addAction(exportAction);
 312 }
 313
 314 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 315 {
 316     this->clientModel = clientModel;
 317     if(clientModel)
 318     {
 319         if(clientModel->isTestNet())
 320         {
 321             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 322             setWindowTitle(title_testnet);
 323 #ifndef Q_WS_MAC
 324             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 325 #else
 326             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 327 #endif
 328             if(trayIcon)
 329             {
 330                 trayIcon->setToolTip(title_testnet);
 331                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 332             }
 333         }
 334
 335         // Keep up to date with client
 336         setNumConnections(clientModel->getNumConnections());
 337         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 338
 339         setNumBlocks(clientModel->getNumBlocks());
 340         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 341
 342         // Report errors from network/worker thread
 343         connect(clientModel, SIGNAL(error(QString,QString, bool)), this, SLOT(error(QString,QString,bool)));
 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,bool)), this, SLOT(error(QString,QString,bool)));
 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()), toggleHideAction, SLOT(trigger()));
 392     trayIconMenu = dockIconHandler->dockMenu();
 393 #endif
 394
 395     // Configuration of the tray icon (or dock icon) icon menu
 396     trayIconMenu->addAction(toggleHideAction);
 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         toggleHideAction->trigger();
 421     }
 422 }
 423 #endif
 424
 425 void BitcoinGUI::toggleHidden()
 426 {
 427     // activateWindow() (sometimes) helps with keyboard focus on Windows
 428     if(isHidden())
 429     {
 430         show();
 431         activateWindow();
 432     }
 433     else if(isMinimized())
 434     {
 435         showNormal();
 436         activateWindow();
 437     }
 438     else if(GUIUtil::isObscured(this))
 439     {
 440         raise();
 441         activateWindow();
 442     }
 443     else
 444         hide();
 445 }
 446
 447 void BitcoinGUI::optionsClicked()
 448 {
 449     if(!clientModel || !clientModel->getOptionsModel())
 450         return;
 451     OptionsDialog dlg;
 452     dlg.setModel(clientModel->getOptionsModel());
 453     dlg.exec();
 454 }
 455
 456 void BitcoinGUI::aboutClicked()
 457 {
 458     AboutDialog dlg;
 459     dlg.setModel(clientModel);
 460     dlg.exec();
 461 }
 462
 463 void BitcoinGUI::setNumConnections(int count)
 464 {
 465     QString icon;
 466     switch(count)
 467     {
 468     case 0: icon = ":/icons/connect_0"; break;
 469     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 470     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 471     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 472     default: icon = ":/icons/connect_4"; break;
 473     }
 474     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 475     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 476 }
 477
 478 void BitcoinGUI::setNumBlocks(int count)
 479 {
 480     // don't show / hide progressBar and it's label if we have no connection(s) to the network
 481     if (!clientModel || clientModel->getNumConnections() == 0)
 482     {
 483         progressBarLabel->setVisible(false);
 484         progressBar->setVisible(false);
 485
 486         return;
 487     }
 488
 489     int nTotalBlocks = clientModel->getNumBlocksOfPeers();
 490     QString tooltip;
 491
 492     if(count < nTotalBlocks)
 493     {
 494         int nRemainingBlocks = nTotalBlocks - count;
 495         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 496
 497         if (clientModel->getStatusBarWarnings() == "")
 498         {
 499             progressBarLabel->setText(tr("Synchronizing with network..."));
 500             progressBarLabel->setVisible(true);
 501             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 502             progressBar->setMaximum(nTotalBlocks);
 503             progressBar->setValue(count);
 504             progressBar->setVisible(true);
 505         }
 506         else
 507         {
 508             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 509             progressBarLabel->setVisible(true);
 510             progressBar->setVisible(false);
 511         }
 512         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 513     }
 514     else
 515     {
 516         if (clientModel->getStatusBarWarnings() == "")
 517             progressBarLabel->setVisible(false);
 518         else
 519         {
 520             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 521             progressBarLabel->setVisible(true);
 522         }
 523         progressBar->setVisible(false);
 524         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 525     }
 526
 527     QDateTime now = QDateTime::currentDateTime();
 528     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 529     int secs = lastBlockDate.secsTo(now);
 530     QString text;
 531
 532     // Represent time from last generated block in human readable text
 533     if(secs <= 0)
 534     {
 535         // Fully up to date. Leave text empty.
 536     }
 537     else if(secs < 60)
 538     {
 539         text = tr("%n second(s) ago","",secs);
 540     }
 541     else if(secs < 60*60)
 542     {
 543         text = tr("%n minute(s) ago","",secs/60);
 544     }
 545     else if(secs < 24*60*60)
 546     {
 547         text = tr("%n hour(s) ago","",secs/(60*60));
 548     }
 549     else
 550     {
 551         text = tr("%n day(s) ago","",secs/(60*60*24));
 552     }
 553
 554     // Set icon state: spinning if catching up, tick otherwise
 555     if(secs < 90*60 && count >= nTotalBlocks)
 556     {
 557         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 558         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 559     }
 560     else
 561     {
 562         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 563         labelBlocksIcon->setMovie(syncIconMovie);
 564         syncIconMovie->start();
 565     }
 566
 567     if(!text.isEmpty())
 568     {
 569         tooltip += QString("\n");
 570         tooltip += tr("Last received block was generated %1.").arg(text);
 571     }
 572
 573     labelBlocksIcon->setToolTip(tooltip);
 574     progressBarLabel->setToolTip(tooltip);
 575     progressBar->setToolTip(tooltip);
 576 }
 577
 578 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 579 {
 580     // Report errors from network/worker thread
 581     if(modal)
 582     {
 583         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 584     } else {
 585         notificator->notify(Notificator::Critical, title, message);
 586     }
 587 }
 588
 589 void BitcoinGUI::changeEvent(QEvent *e)
 590 {
 591     QMainWindow::changeEvent(e);
 592 #ifndef Q_WS_MAC // Ignored on Mac
 593     if(e->type() == QEvent::WindowStateChange)
 594     {
 595         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 596         {
 597             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 598             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 599             {
 600                 QTimer::singleShot(0, this, SLOT(hide()));
 601                 e->ignore();
 602             }
 603         }
 604     }
 605 #endif
 606 }
 607
 608 void BitcoinGUI::closeEvent(QCloseEvent *event)
 609 {
 610     if(clientModel)
 611     {
 612 #ifndef Q_WS_MAC // Ignored on Mac
 613         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 614            !clientModel->getOptionsModel()->getMinimizeOnClose())
 615         {
 616             qApp->quit();
 617         }
 618 #endif
 619     }
 620     QMainWindow::closeEvent(event);
 621 }
 622
 623 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 624 {
 625     QString strMessage =
 626         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 627           "which goes to the nodes that process your transaction and helps to support the network.  "
 628           "Do you want to pay the fee?").arg(
 629                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 630     QMessageBox::StandardButton retval = QMessageBox::question(
 631           this, tr("Sending..."), strMessage,
 632           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 633     *payFee = (retval == QMessageBox::Yes);
 634 }
 635
 636 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 637 {
 638     if(!walletModel || !clientModel)
 639         return;
 640     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 641     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 642                     .data(Qt::EditRole).toULongLong();
 643     if(!clientModel->inInitialBlockDownload())
 644     {
 645         // On new transaction, make an info balloon
 646         // Unless the initial block download is in progress, to prevent balloon-spam
 647         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 648                         .data().toString();
 649         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 650                         .data().toString();
 651         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 652                         .data().toString();
 653         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 654                             TransactionTableModel::ToAddress, parent)
 655                         .data(Qt::DecorationRole));
 656
 657         notificator->notify(Notificator::Information,
 658                             (amount)<0 ? tr("Sent transaction") :
 659                                          tr("Incoming transaction"),
 660                               tr("Date: %1\n"
 661                                  "Amount: %2\n"
 662                                  "Type: %3\n"
 663                                  "Address: %4\n")
 664                               .arg(date)
 665                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 666                               .arg(type)
 667                               .arg(address), icon);
 668     }
 669 }
 670
 671 void BitcoinGUI::gotoOverviewPage()
 672 {
 673     overviewAction->setChecked(true);
 674     centralWidget->setCurrentWidget(overviewPage);
 675
 676     exportAction->setEnabled(false);
 677     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 678 }
 679
 680 void BitcoinGUI::gotoHistoryPage()
 681 {
 682     historyAction->setChecked(true);
 683     centralWidget->setCurrentWidget(transactionsPage);
 684
 685     exportAction->setEnabled(true);
 686     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 687     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 688 }
 689
 690 void BitcoinGUI::gotoAddressBookPage()
 691 {
 692     addressBookAction->setChecked(true);
 693     centralWidget->setCurrentWidget(addressBookPage);
 694
 695     exportAction->setEnabled(true);
 696     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 697     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 698 }
 699
 700 void BitcoinGUI::gotoReceiveCoinsPage()
 701 {
 702     receiveCoinsAction->setChecked(true);
 703     centralWidget->setCurrentWidget(receiveCoinsPage);
 704
 705     exportAction->setEnabled(true);
 706     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 707     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 708 }
 709
 710 void BitcoinGUI::gotoSendCoinsPage()
 711 {
 712     sendCoinsAction->setChecked(true);
 713     centralWidget->setCurrentWidget(sendCoinsPage);
 714
 715     exportAction->setEnabled(false);
 716     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 717 }
 718
 719 void BitcoinGUI::gotoMessagePage()
 720 {
 721 #ifdef FIRST_CLASS_MESSAGING
 722     messageAction->setChecked(true);
 723     centralWidget->setCurrentWidget(messagePage);
 724
 725     exportAction->setEnabled(false);
 726     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 727 #else
 728     messagePage->show();
 729     messagePage->setFocus();
 730 #endif
 731 }
 732
 733 void BitcoinGUI::gotoMessagePage(QString addr)
 734 {
 735     gotoMessagePage();
 736     messagePage->setAddress(addr);
 737 }
 738
 739 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 740 {
 741     // Accept only URIs
 742     if(event->mimeData()->hasUrls())
 743         event->acceptProposedAction();
 744 }
 745
 746 void BitcoinGUI::dropEvent(QDropEvent *event)
 747 {
 748     if(event->mimeData()->hasUrls())
 749     {
 750         gotoSendCoinsPage();
 751         QList<QUrl> uris = event->mimeData()->urls();
 752         foreach(const QUrl &uri, uris)
 753         {
 754             sendCoinsPage->handleURI(uri.toString());
 755         }
 756     }
 757
 758     event->acceptProposedAction();
 759 }
 760
 761 void BitcoinGUI::handleURI(QString strURI)
 762 {
 763     gotoSendCoinsPage();
 764     sendCoinsPage->handleURI(strURI);
 765
 766     if(!isActiveWindow())
 767         activateWindow();
 768
 769     showNormalIfMinimized();
 770 }
 771
 772 void BitcoinGUI::setEncryptionStatus(int status)
 773 {
 774     switch(status)
 775     {
 776     case WalletModel::Unencrypted:
 777         labelEncryptionIcon->hide();
 778         encryptWalletAction->setChecked(false);
 779         changePassphraseAction->setEnabled(false);
 780         encryptWalletAction->setEnabled(true);
 781         break;
 782     case WalletModel::Unlocked:
 783         labelEncryptionIcon->show();
 784         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 785         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 786         encryptWalletAction->setChecked(true);
 787         changePassphraseAction->setEnabled(true);
 788         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 789         break;
 790     case WalletModel::Locked:
 791         labelEncryptionIcon->show();
 792         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 793         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 794         encryptWalletAction->setChecked(true);
 795         changePassphraseAction->setEnabled(true);
 796         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 797         break;
 798     }
 799 }
 800
 801 void BitcoinGUI::encryptWallet(bool status)
 802 {
 803     if(!walletModel)
 804         return;
 805     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 806                                      AskPassphraseDialog::Decrypt, this);
 807     dlg.setModel(walletModel);
 808     dlg.exec();
 809
 810     setEncryptionStatus(walletModel->getEncryptionStatus());
 811 }
 812
 813 void BitcoinGUI::backupWallet()
 814 {
 815     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
 816     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
 817     if(!filename.isEmpty()) {
 818         if(!walletModel->backupWallet(filename)) {
 819             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
 820         }
 821     }
 822 }
 823
 824 void BitcoinGUI::changePassphrase()
 825 {
 826     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 827     dlg.setModel(walletModel);
 828     dlg.exec();
 829 }
 830
 831 void BitcoinGUI::unlockWallet()
 832 {
 833     if(!walletModel)
 834         return;
 835     // Unlock wallet when requested by wallet model
 836     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 837     {
 838         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 839         dlg.setModel(walletModel);
 840         dlg.exec();
 841     }
 842 }
 843
 844 void BitcoinGUI::showNormalIfMinimized()
 845 {
 846     if(!isVisible()) // Show, if hidden
 847         show();
 848     if(isMinimized()) // Unminimize, if minimized
 849         showNormal();
 850 }