src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 2011-2012
   5  * The Bitcoin Developers 2011-2012
   6  */
   7 #include "bitcoingui.h"
   8 #include "transactiontablemodel.h"
   9 #include "addressbookpage.h"
  10 #include "sendcoinsdialog.h"
  11 #include "signverifymessagedialog.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 #include "ui_interface.h"
  28 #include "rpcconsole.h"
  29
  30 #ifdef Q_OS_MAC
  31 #include "macdockiconhandler.h"
  32 #endif
  33
  34 #include <QApplication>
  35 #if QT_VERSION < 0x050000
  36 #include <QMainWindow>
  37 #endif
  38 #include <QMenuBar>
  39 #include <QMenu>
  40 #include <QIcon>
  41 #include <QTabWidget>
  42 #include <QVBoxLayout>
  43 #include <QToolBar>
  44 #include <QStatusBar>
  45 #include <QLabel>
  46 #include <QLineEdit>
  47 #include <QPushButton>
  48 #include <QLocale>
  49 #include <QMessageBox>
  50 #include <QProgressBar>
  51 #include <QStackedWidget>
  52 #include <QDateTime>
  53 #include <QMovie>
  54 #include <QFileDialog>
  55 #if QT_VERSION < 0x050000
  56 #include <QDesktopServices>
  57 #else
  58 #include <QStandardPaths>
  59 #endif
  60 #include <QTimer>
  61 #include <QDragEnterEvent>
  62 #if QT_VERSION < 0x050000
  63 #include <QUrl>
  64 #endif
  65 #include <QStyle>
  66 #include <QMimeData>
  67
  68 #include <iostream>
  69
  70 extern bool fWalletUnlockMintOnly;
  71
  72 BitcoinGUI::BitcoinGUI(QWidget *parent):
  73     QMainWindow(parent),
  74     clientModel(0),
  75     walletModel(0),
  76     encryptWalletAction(0),
  77     lockWalletAction(0),
  78     unlockWalletAction(0),
  79     unlockWalletMiningAction(0),
  80     changePassphraseAction(0),
  81     aboutQtAction(0),
  82     trayIcon(0),
  83     notificator(0),
  84     rpcConsole(0)
  85 {
  86     resize(850, 550);
  87     setWindowTitle(tr("NovaCoin") + " - " + tr("Wallet"));
  88 #ifndef Q_OS_MAC
  89     qApp->setWindowIcon(QIcon(":icons/bitcoin"));
  90     setWindowIcon(QIcon(":icons/bitcoin"));
  91 #else
  92     setUnifiedTitleAndToolBarOnMac(true);
  93     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  94 #endif
  95     // Accept D&D of URIs
  96     setAcceptDrops(true);
  97
  98     // Create actions for the toolbar, menu bar and tray/dock icon
  99     createActions();
 100
 101     // Create application menu bar
 102     createMenuBar();
 103
 104     // Create the toolbars
 105     createToolBars();
 106
 107     // Create the tray icon (or setup the dock icon)
 108     createTrayIcon();
 109
 110     // Create tabs
 111     overviewPage = new OverviewPage();
 112
 113     transactionsPage = new QWidget(this);
 114     QVBoxLayout *vbox = new QVBoxLayout();
 115     transactionView = new TransactionView(this);
 116     vbox->addWidget(transactionView);
 117     transactionsPage->setLayout(vbox);
 118
 119     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 120
 121     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 122
 123     sendCoinsPage = new SendCoinsDialog(this);
 124
 125     signVerifyMessageDialog = new SignVerifyMessageDialog(this);
 126
 127     centralWidget = new QStackedWidget(this);
 128     centralWidget->addWidget(overviewPage);
 129     centralWidget->addWidget(transactionsPage);
 130     centralWidget->addWidget(addressBookPage);
 131     centralWidget->addWidget(receiveCoinsPage);
 132     centralWidget->addWidget(sendCoinsPage);
 133     setCentralWidget(centralWidget);
 134
 135     // Create status bar
 136     statusBar();
 137
 138     // Status bar notification icons
 139     QFrame *frameBlocks = new QFrame();
 140     frameBlocks->setContentsMargins(0,0,0,0);
 141     frameBlocks->setMinimumWidth(72);
 142     frameBlocks->setMaximumWidth(72);
 143     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 144     frameBlocksLayout->setContentsMargins(3,0,3,0);
 145     frameBlocksLayout->setSpacing(3);
 146     labelEncryptionIcon = new QLabel();
 147     labelMiningIcon = new QLabel();
 148     labelConnectionsIcon = new QLabel();
 149     labelBlocksIcon = new QLabel();
 150     frameBlocksLayout->addStretch();
 151     frameBlocksLayout->addWidget(labelEncryptionIcon);
 152     frameBlocksLayout->addStretch();
 153     frameBlocksLayout->addWidget(labelMiningIcon);
 154     frameBlocksLayout->addStretch();
 155     frameBlocksLayout->addWidget(labelConnectionsIcon);
 156     frameBlocksLayout->addStretch();
 157     frameBlocksLayout->addWidget(labelBlocksIcon);
 158     frameBlocksLayout->addStretch();
 159
 160     // Progress bar and label for blocks download
 161     progressBarLabel = new QLabel();
 162     progressBarLabel->setVisible(false);
 163     progressBar = new QProgressBar();
 164     progressBar->setAlignment(Qt::AlignCenter);
 165     progressBar->setVisible(false);
 166
 167     // Override style sheet for progress bar for styles that have a segmented progress bar,
 168     // as they make the text unreadable (workaround for issue #1071)
 169     // See https://qt-project.org/doc/qt-4.8/gallery.html
 170     QString curStyle = qApp->style()->metaObject()->className();
 171     if(curStyle == "QWindowsStyle" || curStyle == "QWindowsXPStyle")
 172     {
 173         progressBar->setStyleSheet("QProgressBar { background-color: #e8e8e8; border: 1px solid grey; border-radius: 7px; padding: 1px; text-align: center; } QProgressBar::chunk { background: QLinearGradient(x1: 0, y1: 0, x2: 1, y2: 0, stop: 0 #FF8000, stop: 1 orange); border-radius: 7px; margin: 0px; }");
 174     }
 175
 176     statusBar()->addWidget(progressBarLabel);
 177     statusBar()->addWidget(progressBar);
 178     statusBar()->addPermanentWidget(frameBlocks);
 179
 180     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 181
 182     // Clicking on a transaction on the overview page simply sends you to transaction history page
 183     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 184     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
 185
 186     // Double-clicking on a transaction on the transaction history page shows details
 187     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 188
 189     rpcConsole = new RPCConsole(this);
 190     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
 191
 192     // Clicking on "Verify Message" in the address book sends you to the verify message tab
 193     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
 194     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
 195     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 196
 197     gotoOverviewPage();
 198 }
 199
 200 BitcoinGUI::~BitcoinGUI()
 201 {
 202     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 203         trayIcon->hide();
 204 #ifdef Q_OS_MAC
 205     delete appMenuBar;
 206 #endif
 207 }
 208
 209 void BitcoinGUI::createActions()
 210 {
 211     QActionGroup *tabGroup = new QActionGroup(this);
 212
 213     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 214     overviewAction->setToolTip(tr("Show general overview of wallet"));
 215     overviewAction->setCheckable(true);
 216     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 217     tabGroup->addAction(overviewAction);
 218
 219     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 220     sendCoinsAction->setToolTip(tr("Send coins to a NovaCoin address"));
 221     sendCoinsAction->setCheckable(true);
 222     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 223     tabGroup->addAction(sendCoinsAction);
 224
 225     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 226     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 227     receiveCoinsAction->setCheckable(true);
 228     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 229     tabGroup->addAction(receiveCoinsAction);
 230
 231     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 232     historyAction->setToolTip(tr("Browse transaction history"));
 233     historyAction->setCheckable(true);
 234     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 235     tabGroup->addAction(historyAction);
 236
 237     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 238     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 239     addressBookAction->setCheckable(true);
 240     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 241     tabGroup->addAction(addressBookAction);
 242
 243     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 244     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 245     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 246     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 247     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 248     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 249     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 250     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 251     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 252     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 253
 254     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 255     quitAction->setToolTip(tr("Quit application"));
 256     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 257     quitAction->setMenuRole(QAction::QuitRole);
 258     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About NovaCoin"), this);
 259     aboutAction->setToolTip(tr("Show information about NovaCoin"));
 260     aboutAction->setMenuRole(QAction::AboutRole);
 261     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 262     aboutQtAction->setToolTip(tr("Show information about Qt"));
 263     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 264     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 265     optionsAction->setToolTip(tr("Modify configuration options for NovaCoin"));
 266     optionsAction->setMenuRole(QAction::PreferencesRole);
 267     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
 268     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 269     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 270     encryptWalletAction->setCheckable(true);
 271     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 272     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 273     dumpWalletAction = new QAction(QIcon(":/icons/dump"), tr("&Dump Wallet..."), this);
 274     dumpWalletAction->setStatusTip(tr("Dump keys to a text file"));
 275     importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
 276     importWalletAction->setStatusTip(tr("Import keys into a wallet"));
 277     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 278     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 279     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
 280     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
 281
 282     lockWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Lock wallet"), this);
 283     lockWalletAction->setToolTip(tr("Lock wallet"));
 284     lockWalletAction->setCheckable(true);
 285
 286     unlockWalletAction = new QAction(QIcon(":/icons/lock_open"), tr("Unlo&ck wallet"), this);
 287     unlockWalletAction->setToolTip(tr("Unlock wallet"));
 288     unlockWalletAction->setCheckable(true);
 289
 290     unlockWalletMiningAction = new QAction(QIcon(":/icons/mining_active"), tr("Unlo&ck wallet for mining"), this);
 291     unlockWalletMiningAction->setToolTip(tr("Unlock wallet for mining"));
 292     unlockWalletMiningAction->setCheckable(true);
 293
 294     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 295     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 296     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 297     openRPCConsoleAction->setToolTip(tr("Open debugging and diagnostic console"));
 298
 299     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 300     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 301     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 302     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 303     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 304     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 305     connect(lockWalletAction, SIGNAL(triggered(bool)), this, SLOT(lockWallet()));
 306     connect(unlockWalletAction, SIGNAL(triggered(bool)), this, SLOT(unlockWallet()));
 307     connect(unlockWalletMiningAction, SIGNAL(triggered(bool)), this, SLOT(unlockWalletMining(bool)));
 308     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 309     connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
 310     connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 311     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 312     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 313     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 314 }
 315
 316 void BitcoinGUI::createMenuBar()
 317 {
 318 #ifdef Q_OS_MAC
 319     // Create a decoupled menu bar on Mac which stays even if the window is closed
 320     appMenuBar = new QMenuBar();
 321 #else
 322     // Get the main window's menu bar on other platforms
 323     appMenuBar = menuBar();
 324 #endif
 325
 326     // Configure the menus
 327     QMenu *file = appMenuBar->addMenu(tr("&File"));
 328     file->addAction(backupWalletAction);
 329     file->addSeparator();
 330     file->addAction(dumpWalletAction);
 331     file->addAction(importWalletAction);
 332     file->addAction(exportAction);
 333     file->addAction(signMessageAction);
 334     file->addAction(verifyMessageAction);
 335     file->addSeparator();
 336     file->addAction(quitAction);
 337
 338     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 339     QMenu *securityMenu = settings->addMenu(QIcon(":/icons/key"), tr("&Wallet security"));
 340     securityMenu->addAction(encryptWalletAction);
 341     securityMenu->addAction(changePassphraseAction);
 342     securityMenu->addAction(unlockWalletAction);
 343     securityMenu->addAction(unlockWalletMiningAction);
 344     securityMenu->addAction(lockWalletAction);
 345     settings->addAction(optionsAction);
 346
 347     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 348     help->addAction(openRPCConsoleAction);
 349     help->addSeparator();
 350     help->addAction(aboutAction);
 351     help->addAction(aboutQtAction);
 352 }
 353
 354 void BitcoinGUI::createToolBars()
 355 {
 356     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 357     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 358     toolbar->addAction(overviewAction);
 359     toolbar->addAction(sendCoinsAction);
 360     toolbar->addAction(receiveCoinsAction);
 361     toolbar->addAction(historyAction);
 362     toolbar->addAction(addressBookAction);
 363
 364     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 365     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 366     toolbar2->addAction(exportAction);
 367 }
 368
 369 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 370 {
 371     this->clientModel = clientModel;
 372     if(clientModel)
 373     {
 374         // Replace some strings and icons, when using the testnet
 375         if(clientModel->isTestNet())
 376         {
 377             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 378 #ifndef Q_OS_MAC
 379             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 380             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 381 #else
 382             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 383 #endif
 384             if(trayIcon)
 385             {
 386                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 387                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 388                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 389             }
 390
 391             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 392         }
 393
 394         // Keep up to date with client
 395         setNumConnections(clientModel->getNumConnections());
 396         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 397
 398         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 399         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 400         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(updateMining()));
 401
 402         // Report errors from network/worker thread
 403         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 404
 405         rpcConsole->setClientModel(clientModel);
 406         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 407         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 408     }
 409 }
 410
 411 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 412 {
 413     this->walletModel = walletModel;
 414     if(walletModel)
 415     {
 416         // Report errors from wallet thread
 417         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 418
 419         // Put transaction list in tabs
 420         transactionView->setModel(walletModel);
 421
 422         overviewPage->setModel(walletModel);
 423         addressBookPage->setModel(walletModel->getAddressTableModel());
 424         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 425         sendCoinsPage->setModel(walletModel);
 426         signVerifyMessageDialog->setModel(walletModel);
 427
 428         setEncryptionStatus(walletModel->getEncryptionStatus());
 429         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 430         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 431
 432         // Balloon pop-up for new transaction
 433         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 434                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 435
 436         // Ask for passphrase if needed
 437         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 438     }
 439 }
 440
 441 void BitcoinGUI::createTrayIcon()
 442 {
 443     QMenu *trayIconMenu;
 444 #ifndef Q_OS_MAC
 445     trayIcon = new QSystemTrayIcon(this);
 446     trayIconMenu = new QMenu(this);
 447     trayIcon->setContextMenu(trayIconMenu);
 448     trayIcon->setToolTip(tr("NovaCoin client"));
 449     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 450     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 451             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 452     trayIcon->show();
 453 #else
 454     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 455     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 456     trayIconMenu = dockIconHandler->dockMenu();
 457 #endif
 458
 459     // Configuration of the tray icon (or dock icon) icon menu
 460     trayIconMenu->addAction(toggleHideAction);
 461     trayIconMenu->addSeparator();
 462     trayIconMenu->addAction(sendCoinsAction);
 463     trayIconMenu->addAction(receiveCoinsAction);
 464     trayIconMenu->addSeparator();
 465     trayIconMenu->addAction(signMessageAction);
 466     trayIconMenu->addAction(verifyMessageAction);
 467     trayIconMenu->addSeparator();
 468     trayIconMenu->addAction(optionsAction);
 469     trayIconMenu->addAction(openRPCConsoleAction);
 470 #ifndef Q_OS_MAC // This is built-in on Mac
 471     trayIconMenu->addSeparator();
 472     trayIconMenu->addAction(quitAction);
 473 #endif
 474
 475     notificator = new Notificator(qApp->applicationName(), trayIcon);
 476 }
 477
 478 #ifndef Q_OS_MAC
 479 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 480 {
 481     if(reason == QSystemTrayIcon::Trigger)
 482     {
 483         // Click on system tray icon triggers show/hide of the main window
 484         toggleHideAction->trigger();
 485     }
 486 }
 487 #endif
 488
 489 void BitcoinGUI::optionsClicked()
 490 {
 491     if(!clientModel || !clientModel->getOptionsModel())
 492         return;
 493     OptionsDialog dlg;
 494     dlg.setModel(clientModel->getOptionsModel());
 495     dlg.exec();
 496 }
 497
 498 void BitcoinGUI::aboutClicked()
 499 {
 500     AboutDialog dlg;
 501     dlg.setModel(clientModel);
 502     dlg.exec();
 503 }
 504
 505 void BitcoinGUI::setNumConnections(int count)
 506 {
 507     QString icon;
 508     switch(count)
 509     {
 510     case 0: icon = ":/icons/connect_0"; break;
 511     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 512     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 513     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 514     default: icon = ":/icons/connect_4"; break;
 515     }
 516     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 517     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 518 }
 519
 520 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 521 {
 522     // don't show / hide progress bar and its label if we have no connection to the network
 523     if (!clientModel || clientModel->getNumConnections() == 0)
 524     {
 525         progressBarLabel->setVisible(false);
 526         progressBar->setVisible(false);
 527
 528         return;
 529     }
 530
 531     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 532     QString tooltip;
 533
 534     if(count < nTotalBlocks)
 535     {
 536         int nRemainingBlocks = nTotalBlocks - count;
 537         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 538
 539         if (strStatusBarWarnings.isEmpty())
 540         {
 541             progressBarLabel->setText(tr("Synchronizing with network..."));
 542             progressBarLabel->setVisible(true);
 543             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 544             progressBar->setMaximum(nTotalBlocks);
 545             progressBar->setValue(count);
 546             progressBar->setVisible(true);
 547         }
 548
 549         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 550     }
 551     else
 552     {
 553         if (strStatusBarWarnings.isEmpty())
 554             progressBarLabel->setVisible(false);
 555
 556         progressBar->setVisible(false);
 557         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 558     }
 559
 560     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 561     if (!strStatusBarWarnings.isEmpty())
 562     {
 563         progressBarLabel->setText(strStatusBarWarnings);
 564         progressBarLabel->setVisible(true);
 565         progressBar->setVisible(false);
 566     }
 567
 568     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 569     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 570     QString text;
 571
 572     // Represent time from last generated block in human readable text
 573     if(secs <= 0)
 574     {
 575         // Fully up to date. Leave text empty.
 576     }
 577     else if(secs < 60)
 578     {
 579         text = tr("%n second(s) ago","",secs);
 580     }
 581     else if(secs < 60*60)
 582     {
 583         text = tr("%n minute(s) ago","",secs/60);
 584     }
 585     else if(secs < 24*60*60)
 586     {
 587         text = tr("%n hour(s) ago","",secs/(60*60));
 588     }
 589     else
 590     {
 591         text = tr("%n day(s) ago","",secs/(60*60*24));
 592     }
 593
 594     // Set icon state: spinning if catching up, tick otherwise
 595     if(secs < 90*60 && count >= nTotalBlocks)
 596     {
 597         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 598         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 599
 600         overviewPage->showOutOfSyncWarning(false);
 601     }
 602     else
 603     {
 604         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 605         labelBlocksIcon->setMovie(syncIconMovie);
 606         syncIconMovie->start();
 607
 608         overviewPage->showOutOfSyncWarning(true);
 609     }
 610
 611     if(!text.isEmpty())
 612     {
 613         tooltip += QString("<br>");
 614         tooltip += tr("Last received block was generated %1.").arg(text);
 615     }
 616
 617     // Don't word-wrap this (fixed-width) tooltip
 618     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 619
 620     labelBlocksIcon->setToolTip(tooltip);
 621     progressBarLabel->setToolTip(tooltip);
 622     progressBar->setToolTip(tooltip);
 623 }
 624
 625 void BitcoinGUI::updateMining()
 626 {
 627    if(!walletModel)
 628       return;
 629
 630     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 631
 632     if (!clientModel->getNumConnections())
 633     {
 634         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 635         return;
 636     }
 637
 638     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 639     {
 640         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 641         return;
 642     }
 643
 644     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 645     {
 646         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 647         return;
 648     }
 649
 650     uint64 nMinWeight = 0, nMaxWeight = 0, nTotalWeight = 0;
 651     walletModel->getStakeWeight(nMinWeight, nMaxWeight, nTotalWeight);
 652
 653     if (nTotalWeight > 0)
 654     {
 655         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 656
 657         uint64 nNetworkWeight = clientModel->getPoSKernelPS();
 658 /*
 659         double dDifficulty = clientModel->getDifficulty(true);
 660         QString msg;
 661
 662         int nApproxTime = 4294967297 * dDifficulty / nTotalWeight;
 663
 664         if (nApproxTime < 60)
 665             msg = tr("%n second(s)", "", nApproxTime);
 666         else if (nApproxTime < 60*60)
 667             msg = tr("%n minute(s)", "", nApproxTime / 60);
 668         else if (nApproxTime < 24*60*60)
 669             msg = tr("%n hour(s)", "", nApproxTime / 3600);
 670         else
 671             msg = tr("%n day(s)", "", nApproxTime / 86400);
 672
 673         labelMiningIcon->setToolTip(tr("Stake miner is active\nYour current stake weight is %1\nNetwork weight is %2\nAverage block generation time is %3").arg(nTotalWeight).arg(dNetworkWeight).arg(msg));
 674 */
 675
 676         labelMiningIcon->setToolTip(tr("Stake miner is active\nYour current stake weight is %1\nNetwork weight is %2").arg(nTotalWeight).arg(nNetworkWeight));
 677     }
 678     else
 679         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 680 }
 681
 682 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 683 {
 684     // Report errors from network/worker thread
 685     if(modal)
 686     {
 687         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 688     } else {
 689         notificator->notify(Notificator::Critical, title, message);
 690     }
 691 }
 692
 693 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 694 {
 695     QString strTitle = tr("NovaCoin") + " - ";
 696     // Default to information icon
 697     int nMBoxIcon = QMessageBox::Information;
 698     int nNotifyIcon = Notificator::Information;
 699
 700
 701     // Check for usage of predefined title
 702     switch (style) {
 703     case CClientUIInterface::MSG_ERROR:
 704         strTitle += tr("Error");
 705         break;
 706     case CClientUIInterface::MSG_WARNING:
 707         strTitle += tr("Warning");
 708         break;
 709     case CClientUIInterface::MSG_INFORMATION:
 710         strTitle += tr("Information");
 711         break;
 712     default:
 713         strTitle += title; // Use supplied title
 714     }
 715
 716     // Check for error/warning icon
 717     if (style & CClientUIInterface::ICON_ERROR) {
 718         nMBoxIcon = QMessageBox::Critical;
 719         nNotifyIcon = Notificator::Critical;
 720     }
 721     else if (style & CClientUIInterface::ICON_WARNING) {
 722         nMBoxIcon = QMessageBox::Warning;
 723         nNotifyIcon = Notificator::Warning;
 724     }
 725
 726     // Display message
 727     if (style & CClientUIInterface::MODAL) {
 728         // Check for buttons, use OK as default, if none was supplied
 729         QMessageBox::StandardButton buttons;
 730         buttons = QMessageBox::Ok;
 731
 732         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 733
 734         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 735
 736         mBox.exec();
 737     }
 738     else
 739         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 740 }
 741
 742
 743 void BitcoinGUI::changeEvent(QEvent *e)
 744 {
 745     QMainWindow::changeEvent(e);
 746 #ifndef Q_OS_MAC // Ignored on Mac
 747     if(e->type() == QEvent::WindowStateChange)
 748     {
 749         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 750         {
 751             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 752             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 753             {
 754                 QTimer::singleShot(0, this, SLOT(hide()));
 755                 e->ignore();
 756             }
 757         }
 758     }
 759 #endif
 760 }
 761
 762 void BitcoinGUI::closeEvent(QCloseEvent *event)
 763 {
 764     if(clientModel)
 765     {
 766 #ifndef Q_OS_MAC // Ignored on Mac
 767         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 768            !clientModel->getOptionsModel()->getMinimizeOnClose())
 769         {
 770             qApp->quit();
 771         }
 772 #endif
 773     }
 774     QMainWindow::closeEvent(event);
 775 }
 776
 777 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 778 {
 779     QString strMessage =
 780         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 781           "which goes to the nodes that process your transaction and helps to support the network.  "
 782           "Do you want to pay the fee?").arg(
 783                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 784     QMessageBox::StandardButton retval = QMessageBox::question(
 785           this, tr("Confirm transaction fee"), strMessage,
 786           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 787     *payFee = (retval == QMessageBox::Yes);
 788 }
 789
 790 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 791 {
 792     if(!walletModel || !clientModel)
 793         return;
 794     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 795     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 796                     .data(Qt::EditRole).toULongLong();
 797     if(!clientModel->inInitialBlockDownload())
 798     {
 799         // On new transaction, make an info balloon
 800         // Unless the initial block download is in progress, to prevent balloon-spam
 801         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 802                         .data().toString();
 803         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 804                         .data().toString();
 805         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 806                         .data().toString();
 807         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 808                             TransactionTableModel::ToAddress, parent)
 809                         .data(Qt::DecorationRole));
 810
 811         notificator->notify(Notificator::Information,
 812                             (amount)<0 ? tr("Sent transaction") :
 813                                          tr("Incoming transaction"),
 814                               tr("Date: %1\n"
 815                                  "Amount: %2\n"
 816                                  "Type: %3\n"
 817                                  "Address: %4\n")
 818                               .arg(date)
 819                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 820                               .arg(type)
 821                               .arg(address), icon);
 822     }
 823 }
 824
 825 void BitcoinGUI::gotoOverviewPage()
 826 {
 827     overviewAction->setChecked(true);
 828     centralWidget->setCurrentWidget(overviewPage);
 829
 830     exportAction->setEnabled(false);
 831     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 832 }
 833
 834 void BitcoinGUI::gotoHistoryPage()
 835 {
 836     historyAction->setChecked(true);
 837     centralWidget->setCurrentWidget(transactionsPage);
 838
 839     exportAction->setEnabled(true);
 840     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 841     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 842 }
 843
 844 void BitcoinGUI::gotoAddressBookPage()
 845 {
 846     addressBookAction->setChecked(true);
 847     centralWidget->setCurrentWidget(addressBookPage);
 848
 849     exportAction->setEnabled(true);
 850     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 851     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 852 }
 853
 854 void BitcoinGUI::gotoReceiveCoinsPage()
 855 {
 856     receiveCoinsAction->setChecked(true);
 857     centralWidget->setCurrentWidget(receiveCoinsPage);
 858
 859     exportAction->setEnabled(true);
 860     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 861     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 862 }
 863
 864 void BitcoinGUI::gotoSendCoinsPage()
 865 {
 866     sendCoinsAction->setChecked(true);
 867     centralWidget->setCurrentWidget(sendCoinsPage);
 868
 869     exportAction->setEnabled(false);
 870     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 871 }
 872
 873 void BitcoinGUI::gotoSignMessageTab(QString addr)
 874 {
 875     // call show() in showTab_SM()
 876     signVerifyMessageDialog->showTab_SM(true);
 877
 878     if(!addr.isEmpty())
 879         signVerifyMessageDialog->setAddress_SM(addr);
 880 }
 881
 882 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 883 {
 884     // call show() in showTab_VM()
 885     signVerifyMessageDialog->showTab_VM(true);
 886
 887     if(!addr.isEmpty())
 888         signVerifyMessageDialog->setAddress_VM(addr);
 889 }
 890
 891 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 892 {
 893     // Accept only URIs
 894     if(event->mimeData()->hasUrls())
 895         event->acceptProposedAction();
 896 }
 897
 898 void BitcoinGUI::dropEvent(QDropEvent *event)
 899 {
 900     if(event->mimeData()->hasUrls())
 901     {
 902         int nValidUrisFound = 0;
 903         QList<QUrl> uris = event->mimeData()->urls();
 904         foreach(const QUrl &uri, uris)
 905         {
 906             if (sendCoinsPage->handleURI(uri.toString()))
 907                 nValidUrisFound++;
 908         }
 909
 910         // if valid URIs were found
 911         if (nValidUrisFound)
 912             gotoSendCoinsPage();
 913         else
 914             notificator->notify(Notificator::Warning, tr("URI handling"), tr("URI can not be parsed! This can be caused by an invalid NovaCoin address or malformed URI parameters."));
 915     }
 916
 917     event->acceptProposedAction();
 918 }
 919
 920 void BitcoinGUI::handleURI(QString strURI)
 921 {
 922     // URI has to be valid
 923     if (sendCoinsPage->handleURI(strURI))
 924     {
 925         showNormalIfMinimized();
 926         gotoSendCoinsPage();
 927     }
 928     else
 929         notificator->notify(Notificator::Warning, tr("URI handling"), tr("URI can not be parsed! This can be caused by an invalid NovaCoin address or malformed URI parameters."));
 930 }
 931
 932 void BitcoinGUI::setEncryptionStatus(int status)
 933 {
 934     switch(status)
 935     {
 936     case WalletModel::Unencrypted:
 937         labelEncryptionIcon->hide();
 938         encryptWalletAction->setChecked(false);
 939         changePassphraseAction->setEnabled(false);
 940         lockWalletAction->setEnabled(false);
 941         unlockWalletAction->setEnabled(false);
 942         unlockWalletMiningAction->setEnabled(false);
 943         encryptWalletAction->setEnabled(true);
 944         break;
 945     case WalletModel::Unlocked:
 946         labelEncryptionIcon->show();
 947         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 948         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 949         encryptWalletAction->setChecked(true);
 950         changePassphraseAction->setEnabled(true);
 951         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 952
 953         lockWalletAction->setEnabled(true);
 954         lockWalletAction->setChecked(false);
 955         unlockWalletAction->setEnabled(false);
 956         unlockWalletMiningAction->setEnabled(false);
 957
 958         if (fWalletUnlockMintOnly)
 959             unlockWalletMiningAction->setChecked(true);
 960         else
 961             unlockWalletAction->setChecked(true);
 962
 963         break;
 964     case WalletModel::Locked:
 965         labelEncryptionIcon->show();
 966         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 967         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 968         encryptWalletAction->setChecked(true);
 969         changePassphraseAction->setEnabled(true);
 970         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 971
 972         lockWalletAction->setChecked(true);
 973         unlockWalletAction->setChecked(false);
 974         unlockWalletMiningAction->setChecked(false);
 975
 976         lockWalletAction->setEnabled(false);
 977         unlockWalletAction->setEnabled(true);
 978         unlockWalletMiningAction->setEnabled(true);
 979         break;
 980     }
 981 }
 982
 983 void BitcoinGUI::encryptWallet(bool status)
 984 {
 985     if(!walletModel)
 986         return;
 987     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 988                                      AskPassphraseDialog::Decrypt, this);
 989     dlg.setModel(walletModel);
 990     dlg.exec();
 991
 992     setEncryptionStatus(walletModel->getEncryptionStatus());
 993 }
 994
 995 void BitcoinGUI::unlockWalletMining(bool status)
 996 {
 997     if(!walletModel)
 998         return;
 999
1000     // Unlock wallet when requested by wallet model
1001     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1002     {
1003         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1004         dlg.setModel(walletModel);
1005         dlg.exec();
1006     }
1007 }
1008
1009 void BitcoinGUI::backupWallet()
1010 {
1011 #if QT_VERSION < 0x050000
1012     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1013 #else
1014     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1015 #endif
1016     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1017     if(!filename.isEmpty()) {
1018         if(!walletModel->backupWallet(filename)) {
1019             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1020         }
1021     }
1022 }
1023
1024 void BitcoinGUI::dumpWallet()
1025 {
1026    if(!walletModel)
1027       return;
1028
1029    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1030    if(!ctx.isValid())
1031    {
1032        // Unlock wallet failed or was cancelled
1033        return;
1034    }
1035
1036 #if QT_VERSION < 0x050000
1037     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1038 #else
1039     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1040 #endif
1041     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1042     if(!filename.isEmpty()) {
1043         if(!walletModel->dumpWallet(filename)) {
1044             error(tr("Dump failed"),
1045                          tr("An error happened while trying to save the keys to your location.\n"
1046                             "Keys were not saved.")
1047                       ,CClientUIInterface::MSG_ERROR);
1048         }
1049         else
1050           message(tr("Dump successful"),
1051                        tr("Keys were saved to this file:\n%2")
1052                        .arg(filename)
1053                       ,CClientUIInterface::MSG_INFORMATION);
1054     }
1055 }
1056
1057 void BitcoinGUI::importWallet()
1058 {
1059    if(!walletModel)
1060       return;
1061
1062    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1063    if(!ctx.isValid())
1064    {
1065        // Unlock wallet failed or was cancelled
1066        return;
1067    }
1068
1069 #if QT_VERSION < 0x050000
1070     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1071 #else
1072     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1073 #endif
1074     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1075     if(!filename.isEmpty()) {
1076         if(!walletModel->importWallet(filename)) {
1077             error(tr("Import Failed"),
1078                          tr("An error happened while trying to import the keys.\n"
1079                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1080                          .arg(filename)
1081                       ,CClientUIInterface::MSG_ERROR);
1082         }
1083         else
1084           message(tr("Import Successful"),
1085                        tr("All keys from:\n %1,\n were imported into your wallet.")
1086                        .arg(filename)
1087                       ,CClientUIInterface::MSG_INFORMATION);
1088     }
1089 }
1090
1091
1092 void BitcoinGUI::changePassphrase()
1093 {
1094     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1095     dlg.setModel(walletModel);
1096     dlg.exec();
1097 }
1098
1099 void BitcoinGUI::unlockWallet()
1100 {
1101     if(!walletModel)
1102         return;
1103     // Unlock wallet when requested by wallet model
1104     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1105     {
1106         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1107         dlg.setModel(walletModel);
1108         dlg.exec();
1109     }
1110 }
1111
1112 void BitcoinGUI::lockWallet()
1113 {
1114     if(!walletModel)
1115         return;
1116
1117     walletModel->setWalletLocked(true);
1118 }
1119
1120 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1121 {
1122     // activateWindow() (sometimes) helps with keyboard focus on Windows
1123     if (isHidden())
1124     {
1125         show();
1126         activateWindow();
1127     }
1128     else if (isMinimized())
1129     {
1130         showNormal();
1131         activateWindow();
1132     }
1133     else if (GUIUtil::isObscured(this))
1134     {
1135         raise();
1136         activateWindow();
1137     }
1138     else if(fToggleHidden)
1139         hide();
1140 }
1141
1142 void BitcoinGUI::toggleHidden()
1143 {
1144     showNormalIfMinimized(true);
1145 }