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 #include "mintingview.h"
  30
  31 #ifdef Q_OS_MAC
  32 #include "macdockiconhandler.h"
  33 #endif
  34
  35 #include <QApplication>
  36 #if QT_VERSION < 0x050000
  37 #include <QMainWindow>
  38 #endif
  39 #include <QMenuBar>
  40 #include <QMenu>
  41 #include <QIcon>
  42 #include <QTabWidget>
  43 #include <QVBoxLayout>
  44 #include <QToolBar>
  45 #include <QStatusBar>
  46 #include <QLabel>
  47 #include <QLineEdit>
  48 #include <QPushButton>
  49 #include <QLocale>
  50 #include <QMessageBox>
  51 #include <QProgressBar>
  52 #include <QStackedWidget>
  53 #include <QDateTime>
  54 #include <QMovie>
  55 #include <QFileDialog>
  56 #if QT_VERSION < 0x050000
  57 #include <QDesktopServices>
  58 #else
  59 #include <QStandardPaths>
  60 #endif
  61 #include <QTimer>
  62 #include <QDragEnterEvent>
  63 #if QT_VERSION < 0x050000
  64 #include <QUrl>
  65 #endif
  66 #include <QStyle>
  67 #include <QMimeData>
  68
  69 #include <iostream>
  70
  71 extern bool fWalletUnlockMintOnly;
  72
  73 BitcoinGUI::BitcoinGUI(QWidget *parent):
  74     QMainWindow(parent),
  75     clientModel(0),
  76     walletModel(0),
  77     encryptWalletAction(0),
  78     lockWalletAction(0),
  79     unlockWalletAction(0),
  80     unlockWalletMiningAction(0),
  81     changePassphraseAction(0),
  82     aboutQtAction(0),
  83     trayIcon(0),
  84     notificator(0),
  85     rpcConsole(0)
  86 {
  87     resize(850, 550);
  88     setWindowTitle(tr("NovaCoin") + " - " + tr("Wallet"));
  89 #ifndef Q_OS_MAC
  90     qApp->setWindowIcon(QIcon(":icons/bitcoin"));
  91     setWindowIcon(QIcon(":icons/bitcoin"));
  92 #else
  93     setUnifiedTitleAndToolBarOnMac(true);
  94     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  95 #endif
  96     // Accept D&D of URIs
  97     setAcceptDrops(true);
  98
  99     // Create actions for the toolbar, menu bar and tray/dock icon
 100     createActions();
 101
 102     // Create application menu bar
 103     createMenuBar();
 104
 105     // Create the toolbars
 106     createToolBars();
 107
 108     // Create the tray icon (or setup the dock icon)
 109     createTrayIcon();
 110
 111     // Create tabs
 112     overviewPage = new OverviewPage();
 113
 114     transactionsPage = new QWidget(this);
 115     QVBoxLayout *vbox = new QVBoxLayout();
 116     transactionView = new TransactionView(this);
 117     vbox->addWidget(transactionView);
 118     transactionsPage->setLayout(vbox);
 119
 120     mintingPage = new QWidget(this);
 121     QVBoxLayout *vboxMinting = new QVBoxLayout();
 122     mintingView = new MintingView(this);
 123     vboxMinting->addWidget(mintingView);
 124     mintingPage->setLayout(vboxMinting);
 125
 126     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 127
 128     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 129
 130     sendCoinsPage = new SendCoinsDialog(this);
 131
 132     signVerifyMessageDialog = new SignVerifyMessageDialog(this);
 133
 134     centralWidget = new QStackedWidget(this);
 135     centralWidget->addWidget(overviewPage);
 136     centralWidget->addWidget(transactionsPage);
 137     centralWidget->addWidget(mintingPage);
 138     centralWidget->addWidget(addressBookPage);
 139     centralWidget->addWidget(receiveCoinsPage);
 140     centralWidget->addWidget(sendCoinsPage);
 141     setCentralWidget(centralWidget);
 142
 143     // Create status bar
 144     statusBar();
 145
 146     // Status bar notification icons
 147     QFrame *frameBlocks = new QFrame();
 148     frameBlocks->setContentsMargins(0,0,0,0);
 149     frameBlocks->setMinimumWidth(72);
 150     frameBlocks->setMaximumWidth(72);
 151     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 152     frameBlocksLayout->setContentsMargins(3,0,3,0);
 153     frameBlocksLayout->setSpacing(3);
 154     labelEncryptionIcon = new QLabel();
 155     labelMiningIcon = new QLabel();
 156     labelConnectionsIcon = new QLabel();
 157     labelBlocksIcon = new QLabel();
 158     frameBlocksLayout->addStretch();
 159     frameBlocksLayout->addWidget(labelEncryptionIcon);
 160     frameBlocksLayout->addStretch();
 161     frameBlocksLayout->addWidget(labelMiningIcon);
 162     frameBlocksLayout->addStretch();
 163     frameBlocksLayout->addWidget(labelConnectionsIcon);
 164     frameBlocksLayout->addStretch();
 165     frameBlocksLayout->addWidget(labelBlocksIcon);
 166     frameBlocksLayout->addStretch();
 167
 168     // Progress bar and label for blocks download
 169     progressBarLabel = new QLabel();
 170     progressBarLabel->setVisible(false);
 171     progressBar = new QProgressBar();
 172     progressBar->setAlignment(Qt::AlignCenter);
 173     progressBar->setVisible(false);
 174
 175     // Override style sheet for progress bar for styles that have a segmented progress bar,
 176     // as they make the text unreadable (workaround for issue #1071)
 177     // See https://qt-project.org/doc/qt-4.8/gallery.html
 178     QString curStyle = qApp->style()->metaObject()->className();
 179     if(curStyle == "QWindowsStyle" || curStyle == "QWindowsXPStyle")
 180     {
 181         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; }");
 182     }
 183
 184     statusBar()->addWidget(progressBarLabel);
 185     statusBar()->addWidget(progressBar);
 186     statusBar()->addPermanentWidget(frameBlocks);
 187
 188     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 189
 190     // Clicking on a transaction on the overview page simply sends you to transaction history page
 191     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 192     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
 193
 194     // Double-clicking on a transaction on the transaction history page shows details
 195     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 196
 197     rpcConsole = new RPCConsole(this);
 198     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
 199
 200     // Clicking on "Verify Message" in the address book sends you to the verify message tab
 201     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
 202     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
 203     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 204
 205     gotoOverviewPage();
 206 }
 207
 208 BitcoinGUI::~BitcoinGUI()
 209 {
 210     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 211         trayIcon->hide();
 212 #ifdef Q_OS_MAC
 213     delete appMenuBar;
 214 #endif
 215 }
 216
 217 void BitcoinGUI::createActions()
 218 {
 219     QActionGroup *tabGroup = new QActionGroup(this);
 220
 221     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 222     overviewAction->setToolTip(tr("Show general overview of wallet"));
 223     overviewAction->setCheckable(true);
 224     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 225     tabGroup->addAction(overviewAction);
 226
 227     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 228     sendCoinsAction->setToolTip(tr("Send coins to a NovaCoin address"));
 229     sendCoinsAction->setCheckable(true);
 230     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 231     tabGroup->addAction(sendCoinsAction);
 232
 233     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 234     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 235     receiveCoinsAction->setCheckable(true);
 236     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 237     tabGroup->addAction(receiveCoinsAction);
 238
 239     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 240     historyAction->setToolTip(tr("Browse transaction history"));
 241     historyAction->setCheckable(true);
 242     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 243     tabGroup->addAction(historyAction);
 244
 245     mintingAction = new QAction(QIcon(":/icons/history"), tr("&Minting"), this);
 246     mintingAction->setToolTip(tr("Show your minting capacity"));
 247     mintingAction->setCheckable(true);
 248     mintingAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 249     tabGroup->addAction(mintingAction);
 250
 251     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 252     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 253     addressBookAction->setCheckable(true);
 254     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_6));
 255     tabGroup->addAction(addressBookAction);
 256
 257     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 258     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 259     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 260     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 261     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 262     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 263     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 264     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 265     connect(mintingAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 266     connect(mintingAction, SIGNAL(triggered()), this, SLOT(gotoMintingPage()));
 267     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 268     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 269
 270     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 271     quitAction->setToolTip(tr("Quit application"));
 272     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 273     quitAction->setMenuRole(QAction::QuitRole);
 274     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About NovaCoin"), this);
 275     aboutAction->setToolTip(tr("Show information about NovaCoin"));
 276     aboutAction->setMenuRole(QAction::AboutRole);
 277 #if QT_VERSION < 0x050000
 278     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 279 #else
 280     aboutQtAction = new QAction(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 281 #endif
 282     aboutQtAction->setToolTip(tr("Show information about Qt"));
 283     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 284     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 285     optionsAction->setToolTip(tr("Modify configuration options for NovaCoin"));
 286     optionsAction->setMenuRole(QAction::PreferencesRole);
 287     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
 288     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 289     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 290     encryptWalletAction->setCheckable(true);
 291     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 292     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 293     dumpWalletAction = new QAction(QIcon(":/icons/dump"), tr("&Dump Wallet..."), this);
 294     dumpWalletAction->setStatusTip(tr("Dump keys to a text file"));
 295     importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
 296     importWalletAction->setStatusTip(tr("Import keys into a wallet"));
 297     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 298     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 299     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
 300     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
 301
 302     lockWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Lock wallet"), this);
 303     lockWalletAction->setToolTip(tr("Lock wallet"));
 304     lockWalletAction->setCheckable(true);
 305
 306     unlockWalletAction = new QAction(QIcon(":/icons/lock_open"), tr("Unlo&ck wallet"), this);
 307     unlockWalletAction->setToolTip(tr("Unlock wallet"));
 308     unlockWalletAction->setCheckable(true);
 309
 310     unlockWalletMiningAction = new QAction(QIcon(":/icons/mining_active"), tr("Unlo&ck wallet for mining"), this);
 311     unlockWalletMiningAction->setToolTip(tr("Unlock wallet for mining"));
 312     unlockWalletMiningAction->setCheckable(true);
 313
 314     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 315     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 316     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 317     openRPCConsoleAction->setToolTip(tr("Open debugging and diagnostic console"));
 318
 319     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 320     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 321     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 322     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 323     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 324     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 325     connect(lockWalletAction, SIGNAL(triggered(bool)), this, SLOT(lockWallet()));
 326     connect(unlockWalletAction, SIGNAL(triggered(bool)), this, SLOT(unlockWallet()));
 327     connect(unlockWalletMiningAction, SIGNAL(triggered(bool)), this, SLOT(unlockWalletMining(bool)));
 328     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 329     connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
 330     connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 331     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 332     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 333     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 334 }
 335
 336 void BitcoinGUI::createMenuBar()
 337 {
 338 #ifdef Q_OS_MAC
 339     // Create a decoupled menu bar on Mac which stays even if the window is closed
 340     appMenuBar = new QMenuBar();
 341 #else
 342     // Get the main window's menu bar on other platforms
 343     appMenuBar = menuBar();
 344 #endif
 345
 346     // Configure the menus
 347     QMenu *file = appMenuBar->addMenu(tr("&File"));
 348     file->addAction(backupWalletAction);
 349     file->addSeparator();
 350     file->addAction(dumpWalletAction);
 351     file->addAction(importWalletAction);
 352     file->addAction(exportAction);
 353     file->addAction(signMessageAction);
 354     file->addAction(verifyMessageAction);
 355     file->addSeparator();
 356     file->addAction(quitAction);
 357
 358     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 359     QMenu *securityMenu = settings->addMenu(QIcon(":/icons/key"), tr("&Wallet security"));
 360     securityMenu->addAction(encryptWalletAction);
 361     securityMenu->addAction(changePassphraseAction);
 362     securityMenu->addAction(unlockWalletAction);
 363     securityMenu->addAction(unlockWalletMiningAction);
 364     securityMenu->addAction(lockWalletAction);
 365     settings->addAction(optionsAction);
 366
 367     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 368     help->addAction(openRPCConsoleAction);
 369     help->addSeparator();
 370     help->addAction(aboutAction);
 371     help->addAction(aboutQtAction);
 372 }
 373
 374 void BitcoinGUI::createToolBars()
 375 {
 376     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 377     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 378     toolbar->addAction(overviewAction);
 379     toolbar->addAction(sendCoinsAction);
 380     toolbar->addAction(receiveCoinsAction);
 381     toolbar->addAction(historyAction);
 382     toolbar->addAction(mintingAction);
 383     toolbar->addAction(addressBookAction);
 384
 385     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 386     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 387     toolbar2->addAction(exportAction);
 388 }
 389
 390 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 391 {
 392     this->clientModel = clientModel;
 393     if(clientModel)
 394     {
 395         // Replace some strings and icons, when using the testnet
 396         if(clientModel->isTestNet())
 397         {
 398             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 399 #ifndef Q_OS_MAC
 400             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 401             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 402 #else
 403             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 404 #endif
 405             if(trayIcon)
 406             {
 407                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 408                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 409                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 410             }
 411
 412             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 413         }
 414
 415         // Keep up to date with client
 416         setNumConnections(clientModel->getNumConnections());
 417         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 418
 419         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 420         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 421         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(updateMining()));
 422
 423         // Report errors from network/worker thread
 424         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 425
 426         rpcConsole->setClientModel(clientModel);
 427         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 428         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 429     }
 430 }
 431
 432 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 433 {
 434     this->walletModel = walletModel;
 435     if(walletModel)
 436     {
 437         // Report errors from wallet thread
 438         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 439
 440         // Put transaction list in tabs
 441         transactionView->setModel(walletModel);
 442         mintingView->setModel(walletModel);
 443
 444         overviewPage->setModel(walletModel);
 445         addressBookPage->setModel(walletModel->getAddressTableModel());
 446         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 447         sendCoinsPage->setModel(walletModel);
 448         signVerifyMessageDialog->setModel(walletModel);
 449
 450         setEncryptionStatus(walletModel->getEncryptionStatus());
 451         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 452         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 453
 454         // Balloon pop-up for new transaction
 455         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 456                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 457
 458         // Ask for passphrase if needed
 459         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 460     }
 461 }
 462
 463 void BitcoinGUI::createTrayIcon()
 464 {
 465     QMenu *trayIconMenu;
 466 #ifndef Q_OS_MAC
 467     trayIcon = new QSystemTrayIcon(this);
 468     trayIconMenu = new QMenu(this);
 469     trayIcon->setContextMenu(trayIconMenu);
 470     trayIcon->setToolTip(tr("NovaCoin client"));
 471     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 472     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 473             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 474     trayIcon->show();
 475 #else
 476     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 477     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 478     trayIconMenu = dockIconHandler->dockMenu();
 479 #endif
 480
 481     // Configuration of the tray icon (or dock icon) icon menu
 482     trayIconMenu->addAction(toggleHideAction);
 483     trayIconMenu->addSeparator();
 484     trayIconMenu->addAction(sendCoinsAction);
 485     trayIconMenu->addAction(receiveCoinsAction);
 486     trayIconMenu->addSeparator();
 487     trayIconMenu->addAction(signMessageAction);
 488     trayIconMenu->addAction(verifyMessageAction);
 489     trayIconMenu->addSeparator();
 490     trayIconMenu->addAction(optionsAction);
 491     trayIconMenu->addAction(openRPCConsoleAction);
 492 #ifndef Q_OS_MAC // This is built-in on Mac
 493     trayIconMenu->addSeparator();
 494     trayIconMenu->addAction(quitAction);
 495 #endif
 496
 497     notificator = new Notificator(qApp->applicationName(), trayIcon);
 498 }
 499
 500 #ifndef Q_OS_MAC
 501 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 502 {
 503     if(reason == QSystemTrayIcon::Trigger)
 504     {
 505         // Click on system tray icon triggers show/hide of the main window
 506         toggleHideAction->trigger();
 507     }
 508 }
 509 #endif
 510
 511 void BitcoinGUI::optionsClicked()
 512 {
 513     if(!clientModel || !clientModel->getOptionsModel())
 514         return;
 515     OptionsDialog dlg;
 516     dlg.setModel(clientModel->getOptionsModel());
 517     dlg.exec();
 518 }
 519
 520 void BitcoinGUI::aboutClicked()
 521 {
 522     AboutDialog dlg;
 523     dlg.setModel(clientModel);
 524     dlg.exec();
 525 }
 526
 527 void BitcoinGUI::setNumConnections(int count)
 528 {
 529     QString icon;
 530     switch(count)
 531     {
 532     case 0: icon = ":/icons/connect_0"; break;
 533     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 534     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 535     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 536     default: icon = ":/icons/connect_4"; break;
 537     }
 538     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 539     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 540 }
 541
 542 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 543 {
 544     // don't show / hide progress bar and its label if we have no connection to the network
 545     if (!clientModel || clientModel->getNumConnections() == 0)
 546     {
 547         progressBarLabel->setVisible(false);
 548         progressBar->setVisible(false);
 549
 550         return;
 551     }
 552
 553     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 554     QString tooltip;
 555
 556     if(count < nTotalBlocks)
 557     {
 558         int nRemainingBlocks = nTotalBlocks - count;
 559         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 560
 561         if (strStatusBarWarnings.isEmpty())
 562         {
 563             progressBarLabel->setText(tr("Synchronizing with network..."));
 564             progressBarLabel->setVisible(true);
 565             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 566             progressBar->setMaximum(nTotalBlocks);
 567             progressBar->setValue(count);
 568             progressBar->setVisible(true);
 569         }
 570
 571         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 572     }
 573     else
 574     {
 575         if (strStatusBarWarnings.isEmpty())
 576             progressBarLabel->setVisible(false);
 577
 578         progressBar->setVisible(false);
 579         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 580     }
 581
 582     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 583     if (!strStatusBarWarnings.isEmpty())
 584     {
 585         progressBarLabel->setText(strStatusBarWarnings);
 586         progressBarLabel->setVisible(true);
 587         progressBar->setVisible(false);
 588     }
 589
 590     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 591     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 592     QString text;
 593
 594     // Represent time from last generated block in human readable text
 595     if(secs <= 0)
 596     {
 597         // Fully up to date. Leave text empty.
 598     }
 599     else if(secs < 60)
 600     {
 601         text = tr("%n second(s) ago","",secs);
 602     }
 603     else if(secs < 60*60)
 604     {
 605         text = tr("%n minute(s) ago","",secs/60);
 606     }
 607     else if(secs < 24*60*60)
 608     {
 609         text = tr("%n hour(s) ago","",secs/(60*60));
 610     }
 611     else
 612     {
 613         text = tr("%n day(s) ago","",secs/(60*60*24));
 614     }
 615
 616     // Set icon state: spinning if catching up, tick otherwise
 617     if(secs < 90*60 && count >= nTotalBlocks)
 618     {
 619         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 620         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 621
 622         overviewPage->showOutOfSyncWarning(false);
 623     }
 624     else
 625     {
 626         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 627         labelBlocksIcon->setMovie(syncIconMovie);
 628         syncIconMovie->start();
 629
 630         overviewPage->showOutOfSyncWarning(true);
 631     }
 632
 633     if(!text.isEmpty())
 634     {
 635         tooltip += QString("<br>");
 636         tooltip += tr("Last received block was generated %1.").arg(text);
 637     }
 638
 639     // Don't word-wrap this (fixed-width) tooltip
 640     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 641
 642     labelBlocksIcon->setToolTip(tooltip);
 643     progressBarLabel->setToolTip(tooltip);
 644     progressBar->setToolTip(tooltip);
 645 }
 646
 647 void BitcoinGUI::updateMining()
 648 {
 649    if(!walletModel)
 650       return;
 651
 652     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 653
 654     if (!clientModel->getNumConnections())
 655     {
 656         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 657         return;
 658     }
 659
 660     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 661     {
 662         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 663         return;
 664     }
 665
 666     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 667     {
 668         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 669         return;
 670     }
 671
 672     uint64 nMinWeight = 0, nMaxWeight = 0, nTotalWeight = 0;
 673     walletModel->getStakeWeight(nMinWeight, nMaxWeight, nTotalWeight);
 674
 675     if (nTotalWeight > 0)
 676     {
 677         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 678
 679         uint64 nNetworkWeight = clientModel->getPoSKernelPS();
 680 /*
 681         double dDifficulty = clientModel->getDifficulty(true);
 682         QString msg;
 683
 684         int nApproxTime = 4294967297 * dDifficulty / nTotalWeight;
 685
 686         if (nApproxTime < 60)
 687             msg = tr("%n second(s)", "", nApproxTime);
 688         else if (nApproxTime < 60*60)
 689             msg = tr("%n minute(s)", "", nApproxTime / 60);
 690         else if (nApproxTime < 24*60*60)
 691             msg = tr("%n hour(s)", "", nApproxTime / 3600);
 692         else
 693             msg = tr("%n day(s)", "", nApproxTime / 86400);
 694
 695         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));
 696 */
 697
 698         labelMiningIcon->setToolTip(tr("Stake miner is active\nYour current stake weight is %1\nNetwork weight is %2").arg(nTotalWeight).arg(nNetworkWeight));
 699     }
 700     else
 701         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 702 }
 703
 704 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 705 {
 706     // Report errors from network/worker thread
 707     if(modal)
 708     {
 709         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 710     } else {
 711         notificator->notify(Notificator::Critical, title, message);
 712     }
 713 }
 714
 715 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 716 {
 717     QString strTitle = tr("NovaCoin") + " - ";
 718     // Default to information icon
 719     int nMBoxIcon = QMessageBox::Information;
 720     int nNotifyIcon = Notificator::Information;
 721
 722
 723     // Check for usage of predefined title
 724     switch (style) {
 725     case CClientUIInterface::MSG_ERROR:
 726         strTitle += tr("Error");
 727         break;
 728     case CClientUIInterface::MSG_WARNING:
 729         strTitle += tr("Warning");
 730         break;
 731     case CClientUIInterface::MSG_INFORMATION:
 732         strTitle += tr("Information");
 733         break;
 734     default:
 735         strTitle += title; // Use supplied title
 736     }
 737
 738     // Check for error/warning icon
 739     if (style & CClientUIInterface::ICON_ERROR) {
 740         nMBoxIcon = QMessageBox::Critical;
 741         nNotifyIcon = Notificator::Critical;
 742     }
 743     else if (style & CClientUIInterface::ICON_WARNING) {
 744         nMBoxIcon = QMessageBox::Warning;
 745         nNotifyIcon = Notificator::Warning;
 746     }
 747
 748     // Display message
 749     if (style & CClientUIInterface::MODAL) {
 750         // Check for buttons, use OK as default, if none was supplied
 751         QMessageBox::StandardButton buttons;
 752         buttons = QMessageBox::Ok;
 753
 754         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 755
 756         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 757
 758         mBox.exec();
 759     }
 760     else
 761         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 762 }
 763
 764
 765 void BitcoinGUI::changeEvent(QEvent *e)
 766 {
 767     QMainWindow::changeEvent(e);
 768 #ifndef Q_OS_MAC // Ignored on Mac
 769     if(e->type() == QEvent::WindowStateChange)
 770     {
 771         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 772         {
 773             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 774             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 775             {
 776                 QTimer::singleShot(0, this, SLOT(hide()));
 777                 e->ignore();
 778             }
 779         }
 780     }
 781 #endif
 782 }
 783
 784 void BitcoinGUI::closeEvent(QCloseEvent *event)
 785 {
 786     if(clientModel)
 787     {
 788 #ifndef Q_OS_MAC // Ignored on Mac
 789         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 790            !clientModel->getOptionsModel()->getMinimizeOnClose())
 791         {
 792             qApp->quit();
 793         }
 794 #endif
 795     }
 796     QMainWindow::closeEvent(event);
 797 }
 798
 799 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 800 {
 801     QString strMessage =
 802         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 803           "which goes to the nodes that process your transaction and helps to support the network.  "
 804           "Do you want to pay the fee?").arg(
 805                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 806     QMessageBox::StandardButton retval = QMessageBox::question(
 807           this, tr("Confirm transaction fee"), strMessage,
 808           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 809     *payFee = (retval == QMessageBox::Yes);
 810 }
 811
 812 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 813 {
 814     if(!walletModel || !clientModel)
 815         return;
 816     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 817     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 818                     .data(Qt::EditRole).toULongLong();
 819     if(!clientModel->inInitialBlockDownload())
 820     {
 821         // On new transaction, make an info balloon
 822         // Unless the initial block download is in progress, to prevent balloon-spam
 823         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 824                         .data().toString();
 825         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 826                         .data().toString();
 827         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 828                         .data().toString();
 829         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 830                             TransactionTableModel::ToAddress, parent)
 831                         .data(Qt::DecorationRole));
 832
 833         notificator->notify(Notificator::Information,
 834                             (amount)<0 ? tr("Sent transaction") :
 835                                          tr("Incoming transaction"),
 836                               tr("Date: %1\n"
 837                                  "Amount: %2\n"
 838                                  "Type: %3\n"
 839                                  "Address: %4\n")
 840                               .arg(date)
 841                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 842                               .arg(type)
 843                               .arg(address), icon);
 844     }
 845 }
 846
 847 void BitcoinGUI::gotoOverviewPage()
 848 {
 849     overviewAction->setChecked(true);
 850     centralWidget->setCurrentWidget(overviewPage);
 851
 852     exportAction->setEnabled(false);
 853     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 854 }
 855
 856 void BitcoinGUI::gotoHistoryPage()
 857 {
 858     historyAction->setChecked(true);
 859     centralWidget->setCurrentWidget(transactionsPage);
 860
 861     exportAction->setEnabled(true);
 862     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 863     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 864 }
 865
 866 void BitcoinGUI::gotoMintingPage()
 867 {
 868     mintingAction->setChecked(true);
 869     centralWidget->setCurrentWidget(mintingPage);
 870
 871     exportAction->setEnabled(true);
 872     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 873     connect(exportAction, SIGNAL(triggered()), mintingView, SLOT(exportClicked()));
 874 }
 875
 876
 877 void BitcoinGUI::gotoAddressBookPage()
 878 {
 879     addressBookAction->setChecked(true);
 880     centralWidget->setCurrentWidget(addressBookPage);
 881
 882     exportAction->setEnabled(true);
 883     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 884     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 885 }
 886
 887 void BitcoinGUI::gotoReceiveCoinsPage()
 888 {
 889     receiveCoinsAction->setChecked(true);
 890     centralWidget->setCurrentWidget(receiveCoinsPage);
 891
 892     exportAction->setEnabled(true);
 893     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 894     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 895 }
 896
 897 void BitcoinGUI::gotoSendCoinsPage()
 898 {
 899     sendCoinsAction->setChecked(true);
 900     centralWidget->setCurrentWidget(sendCoinsPage);
 901
 902     exportAction->setEnabled(false);
 903     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 904 }
 905
 906 void BitcoinGUI::gotoSignMessageTab(QString addr)
 907 {
 908     // call show() in showTab_SM()
 909     signVerifyMessageDialog->showTab_SM(true);
 910
 911     if(!addr.isEmpty())
 912         signVerifyMessageDialog->setAddress_SM(addr);
 913 }
 914
 915 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 916 {
 917     // call show() in showTab_VM()
 918     signVerifyMessageDialog->showTab_VM(true);
 919
 920     if(!addr.isEmpty())
 921         signVerifyMessageDialog->setAddress_VM(addr);
 922 }
 923
 924 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 925 {
 926     // Accept only URIs
 927     if(event->mimeData()->hasUrls())
 928         event->acceptProposedAction();
 929 }
 930
 931 void BitcoinGUI::dropEvent(QDropEvent *event)
 932 {
 933     if(event->mimeData()->hasUrls())
 934     {
 935         int nValidUrisFound = 0;
 936         QList<QUrl> uris = event->mimeData()->urls();
 937         foreach(const QUrl &uri, uris)
 938         {
 939             if (sendCoinsPage->handleURI(uri.toString()))
 940                 nValidUrisFound++;
 941         }
 942
 943         // if valid URIs were found
 944         if (nValidUrisFound)
 945             gotoSendCoinsPage();
 946         else
 947             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."));
 948     }
 949
 950     event->acceptProposedAction();
 951 }
 952
 953 void BitcoinGUI::handleURI(QString strURI)
 954 {
 955     // URI has to be valid
 956     if (sendCoinsPage->handleURI(strURI))
 957     {
 958         showNormalIfMinimized();
 959         gotoSendCoinsPage();
 960     }
 961     else
 962         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."));
 963 }
 964
 965 void BitcoinGUI::setEncryptionStatus(int status)
 966 {
 967     switch(status)
 968     {
 969     case WalletModel::Unencrypted:
 970         labelEncryptionIcon->hide();
 971         encryptWalletAction->setChecked(false);
 972         changePassphraseAction->setEnabled(false);
 973         lockWalletAction->setEnabled(false);
 974         unlockWalletAction->setEnabled(false);
 975         unlockWalletMiningAction->setEnabled(false);
 976         encryptWalletAction->setEnabled(true);
 977         break;
 978     case WalletModel::Unlocked:
 979         labelEncryptionIcon->show();
 980         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 981         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 982         encryptWalletAction->setChecked(true);
 983         changePassphraseAction->setEnabled(true);
 984         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 985
 986         lockWalletAction->setEnabled(true);
 987         lockWalletAction->setChecked(false);
 988         unlockWalletAction->setEnabled(false);
 989         unlockWalletMiningAction->setEnabled(false);
 990
 991         if (fWalletUnlockMintOnly)
 992             unlockWalletMiningAction->setChecked(true);
 993         else
 994             unlockWalletAction->setChecked(true);
 995
 996         break;
 997     case WalletModel::Locked:
 998         labelEncryptionIcon->show();
 999         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1000         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1001         encryptWalletAction->setChecked(true);
1002         changePassphraseAction->setEnabled(true);
1003         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1004
1005         lockWalletAction->setChecked(true);
1006         unlockWalletAction->setChecked(false);
1007         unlockWalletMiningAction->setChecked(false);
1008
1009         lockWalletAction->setEnabled(false);
1010         unlockWalletAction->setEnabled(true);
1011         unlockWalletMiningAction->setEnabled(true);
1012         break;
1013     }
1014 }
1015
1016 void BitcoinGUI::encryptWallet(bool status)
1017 {
1018     if(!walletModel)
1019         return;
1020     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
1021                                      AskPassphraseDialog::Decrypt, this);
1022     dlg.setModel(walletModel);
1023     dlg.exec();
1024
1025     setEncryptionStatus(walletModel->getEncryptionStatus());
1026 }
1027
1028 void BitcoinGUI::unlockWalletMining(bool status)
1029 {
1030     if(!walletModel)
1031         return;
1032
1033     // Unlock wallet when requested by wallet model
1034     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1035     {
1036         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1037         dlg.setModel(walletModel);
1038         dlg.exec();
1039     }
1040 }
1041
1042 void BitcoinGUI::backupWallet()
1043 {
1044 #if QT_VERSION < 0x050000
1045     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1046 #else
1047     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1048 #endif
1049     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1050     if(!filename.isEmpty()) {
1051         if(!walletModel->backupWallet(filename)) {
1052             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1053         }
1054     }
1055 }
1056
1057 void BitcoinGUI::dumpWallet()
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 saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1071 #else
1072     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1073 #endif
1074     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1075     if(!filename.isEmpty()) {
1076         if(!walletModel->dumpWallet(filename)) {
1077             error(tr("Dump failed"),
1078                          tr("An error happened while trying to save the keys to your location.\n"
1079                             "Keys were not saved.")
1080                       ,CClientUIInterface::MSG_ERROR);
1081         }
1082         else
1083           message(tr("Dump successful"),
1084                        tr("Keys were saved to this file:\n%2")
1085                        .arg(filename)
1086                       ,CClientUIInterface::MSG_INFORMATION);
1087     }
1088 }
1089
1090 void BitcoinGUI::importWallet()
1091 {
1092    if(!walletModel)
1093       return;
1094
1095    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1096    if(!ctx.isValid())
1097    {
1098        // Unlock wallet failed or was cancelled
1099        return;
1100    }
1101
1102 #if QT_VERSION < 0x050000
1103     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1104 #else
1105     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1106 #endif
1107     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1108     if(!filename.isEmpty()) {
1109         if(!walletModel->importWallet(filename)) {
1110             error(tr("Import Failed"),
1111                          tr("An error happened while trying to import the keys.\n"
1112                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1113                          .arg(filename)
1114                       ,CClientUIInterface::MSG_ERROR);
1115         }
1116         else
1117           message(tr("Import Successful"),
1118                        tr("All keys from:\n %1,\n were imported into your wallet.")
1119                        .arg(filename)
1120                       ,CClientUIInterface::MSG_INFORMATION);
1121     }
1122 }
1123
1124
1125 void BitcoinGUI::changePassphrase()
1126 {
1127     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1128     dlg.setModel(walletModel);
1129     dlg.exec();
1130 }
1131
1132 void BitcoinGUI::unlockWallet()
1133 {
1134     if(!walletModel)
1135         return;
1136     // Unlock wallet when requested by wallet model
1137     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1138     {
1139         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1140         dlg.setModel(walletModel);
1141         dlg.exec();
1142     }
1143 }
1144
1145 void BitcoinGUI::lockWallet()
1146 {
1147     if(!walletModel)
1148         return;
1149
1150     walletModel->setWalletLocked(true);
1151 }
1152
1153 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1154 {
1155     // activateWindow() (sometimes) helps with keyboard focus on Windows
1156     if (isHidden())
1157     {
1158         show();
1159         activateWindow();
1160     }
1161     else if (isMinimized())
1162     {
1163         showNormal();
1164         activateWindow();
1165     }
1166     else if (GUIUtil::isObscured(this))
1167     {
1168         raise();
1169         activateWindow();
1170     }
1171     else if(fToggleHidden)
1172         hide();
1173 }
1174
1175 void BitcoinGUI::toggleHidden()
1176 {
1177     showNormalIfMinimized(true);
1178 }