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     toolbar2->setVisible(false);
 389
 390 }
 391
 392 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 393 {
 394     this->clientModel = clientModel;
 395     if(clientModel)
 396     {
 397         // Replace some strings and icons, when using the testnet
 398         if(clientModel->isTestNet())
 399         {
 400             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 401 #ifndef Q_OS_MAC
 402             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 403             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 404 #else
 405             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 406 #endif
 407             if(trayIcon)
 408             {
 409                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 410                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 411                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 412             }
 413
 414             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 415         }
 416
 417         // Keep up to date with client
 418         setNumConnections(clientModel->getNumConnections());
 419         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 420
 421         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 422         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 423         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(updateMining()));
 424
 425         // Report errors from network/worker thread
 426         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 427
 428         rpcConsole->setClientModel(clientModel);
 429         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 430         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 431     }
 432 }
 433
 434 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 435 {
 436     this->walletModel = walletModel;
 437     if(walletModel)
 438     {
 439         // Report errors from wallet thread
 440         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 441
 442         // Put transaction list in tabs
 443         transactionView->setModel(walletModel);
 444         mintingView->setModel(walletModel);
 445
 446         overviewPage->setModel(walletModel);
 447         addressBookPage->setModel(walletModel->getAddressTableModel());
 448         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 449         sendCoinsPage->setModel(walletModel);
 450         signVerifyMessageDialog->setModel(walletModel);
 451
 452         setEncryptionStatus(walletModel->getEncryptionStatus());
 453         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 454         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 455
 456         // Balloon pop-up for new transaction
 457         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 458                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 459
 460         // Ask for passphrase if needed
 461         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 462     }
 463 }
 464
 465 void BitcoinGUI::createTrayIcon()
 466 {
 467     QMenu *trayIconMenu;
 468 #ifndef Q_OS_MAC
 469     trayIcon = new QSystemTrayIcon(this);
 470     trayIconMenu = new QMenu(this);
 471     trayIcon->setContextMenu(trayIconMenu);
 472     trayIcon->setToolTip(tr("NovaCoin client"));
 473     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 474     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 475             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 476     trayIcon->show();
 477 #else
 478     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 479     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 480     trayIconMenu = dockIconHandler->dockMenu();
 481 #endif
 482
 483     // Configuration of the tray icon (or dock icon) icon menu
 484     trayIconMenu->addAction(toggleHideAction);
 485     trayIconMenu->addSeparator();
 486     trayIconMenu->addAction(sendCoinsAction);
 487     trayIconMenu->addAction(receiveCoinsAction);
 488     trayIconMenu->addSeparator();
 489     trayIconMenu->addAction(signMessageAction);
 490     trayIconMenu->addAction(verifyMessageAction);
 491     trayIconMenu->addSeparator();
 492     trayIconMenu->addAction(optionsAction);
 493     trayIconMenu->addAction(openRPCConsoleAction);
 494 #ifndef Q_OS_MAC // This is built-in on Mac
 495     trayIconMenu->addSeparator();
 496     trayIconMenu->addAction(quitAction);
 497 #endif
 498
 499     notificator = new Notificator(qApp->applicationName(), trayIcon);
 500 }
 501
 502 #ifndef Q_OS_MAC
 503 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 504 {
 505     if(reason == QSystemTrayIcon::Trigger)
 506     {
 507         // Click on system tray icon triggers show/hide of the main window
 508         toggleHideAction->trigger();
 509     }
 510 }
 511 #endif
 512
 513 void BitcoinGUI::optionsClicked()
 514 {
 515     if(!clientModel || !clientModel->getOptionsModel())
 516         return;
 517     OptionsDialog dlg;
 518     dlg.setModel(clientModel->getOptionsModel());
 519     dlg.exec();
 520 }
 521
 522 void BitcoinGUI::aboutClicked()
 523 {
 524     AboutDialog dlg;
 525     dlg.setModel(clientModel);
 526     dlg.exec();
 527 }
 528
 529 void BitcoinGUI::setNumConnections(int count)
 530 {
 531     QString icon;
 532     switch(count)
 533     {
 534     case 0: icon = ":/icons/connect_0"; break;
 535     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 536     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 537     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 538     default: icon = ":/icons/connect_4"; break;
 539     }
 540     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 541     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 542 }
 543
 544 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 545 {
 546     // don't show / hide progress bar and its label if we have no connection to the network
 547     if (!clientModel || clientModel->getNumConnections() == 0)
 548     {
 549         progressBarLabel->setVisible(false);
 550         progressBar->setVisible(false);
 551
 552         return;
 553     }
 554
 555     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 556     QString tooltip;
 557
 558     if(count < nTotalBlocks)
 559     {
 560         int nRemainingBlocks = nTotalBlocks - count;
 561         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 562
 563         if (strStatusBarWarnings.isEmpty())
 564         {
 565             progressBarLabel->setText(tr("Synchronizing with network..."));
 566             progressBarLabel->setVisible(true);
 567             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 568             progressBar->setMaximum(nTotalBlocks);
 569             progressBar->setValue(count);
 570             progressBar->setVisible(true);
 571         }
 572
 573         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 574     }
 575     else
 576     {
 577         if (strStatusBarWarnings.isEmpty())
 578             progressBarLabel->setVisible(false);
 579
 580         progressBar->setVisible(false);
 581         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 582     }
 583
 584     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 585     if (!strStatusBarWarnings.isEmpty())
 586     {
 587         progressBarLabel->setText(strStatusBarWarnings);
 588         progressBarLabel->setVisible(true);
 589         progressBar->setVisible(false);
 590     }
 591
 592     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 593     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 594     QString text;
 595
 596     // Represent time from last generated block in human readable text
 597     if(secs <= 0)
 598     {
 599         // Fully up to date. Leave text empty.
 600     }
 601     else if(secs < 60)
 602     {
 603         text = tr("%n second(s) ago","",secs);
 604     }
 605     else if(secs < 60*60)
 606     {
 607         text = tr("%n minute(s) ago","",secs/60);
 608     }
 609     else if(secs < 24*60*60)
 610     {
 611         text = tr("%n hour(s) ago","",secs/(60*60));
 612     }
 613     else
 614     {
 615         text = tr("%n day(s) ago","",secs/(60*60*24));
 616     }
 617
 618     // Set icon state: spinning if catching up, tick otherwise
 619     if(secs < 90*60 && count >= nTotalBlocks)
 620     {
 621         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 622         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 623
 624         overviewPage->showOutOfSyncWarning(false);
 625     }
 626     else
 627     {
 628         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 629         labelBlocksIcon->setMovie(syncIconMovie);
 630         syncIconMovie->start();
 631
 632         overviewPage->showOutOfSyncWarning(true);
 633     }
 634
 635     if(!text.isEmpty())
 636     {
 637         tooltip += QString("<br>");
 638         tooltip += tr("Last received block was generated %1.").arg(text);
 639     }
 640
 641     // Don't word-wrap this (fixed-width) tooltip
 642     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 643
 644     labelBlocksIcon->setToolTip(tooltip);
 645     progressBarLabel->setToolTip(tooltip);
 646     progressBar->setToolTip(tooltip);
 647 }
 648
 649 void BitcoinGUI::updateMining()
 650 {
 651    if(!walletModel)
 652       return;
 653
 654     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 655
 656     if (!clientModel->getNumConnections())
 657     {
 658         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 659         return;
 660     }
 661
 662     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 663     {
 664         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 665         return;
 666     }
 667
 668     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 669     {
 670         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 671         return;
 672     }
 673
 674     uint64 nMinWeight = 0, nMaxWeight = 0, nTotalWeight = 0;
 675     walletModel->getStakeWeight(nMinWeight, nMaxWeight, nTotalWeight);
 676
 677     if (nTotalWeight > 0)
 678     {
 679         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 680
 681         uint64 nNetworkWeight = clientModel->getPoSKernelPS();
 682 /*
 683         double dDifficulty = clientModel->getDifficulty(true);
 684         QString msg;
 685
 686         int nApproxTime = 4294967297 * dDifficulty / nTotalWeight;
 687
 688         if (nApproxTime < 60)
 689             msg = tr("%n second(s)", "", nApproxTime);
 690         else if (nApproxTime < 60*60)
 691             msg = tr("%n minute(s)", "", nApproxTime / 60);
 692         else if (nApproxTime < 24*60*60)
 693             msg = tr("%n hour(s)", "", nApproxTime / 3600);
 694         else
 695             msg = tr("%n day(s)", "", nApproxTime / 86400);
 696
 697         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));
 698 */
 699
 700         labelMiningIcon->setToolTip(tr("Stake miner is active\nYour current stake weight is %1\nNetwork weight is %2").arg(nTotalWeight).arg(nNetworkWeight));
 701     }
 702     else
 703         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 704 }
 705
 706 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 707 {
 708     // Report errors from network/worker thread
 709     if(modal)
 710     {
 711         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 712     } else {
 713         notificator->notify(Notificator::Critical, title, message);
 714     }
 715 }
 716
 717 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 718 {
 719     QString strTitle = tr("NovaCoin") + " - ";
 720     // Default to information icon
 721     int nMBoxIcon = QMessageBox::Information;
 722     int nNotifyIcon = Notificator::Information;
 723
 724
 725     // Check for usage of predefined title
 726     switch (style) {
 727     case CClientUIInterface::MSG_ERROR:
 728         strTitle += tr("Error");
 729         break;
 730     case CClientUIInterface::MSG_WARNING:
 731         strTitle += tr("Warning");
 732         break;
 733     case CClientUIInterface::MSG_INFORMATION:
 734         strTitle += tr("Information");
 735         break;
 736     default:
 737         strTitle += title; // Use supplied title
 738     }
 739
 740     // Check for error/warning icon
 741     if (style & CClientUIInterface::ICON_ERROR) {
 742         nMBoxIcon = QMessageBox::Critical;
 743         nNotifyIcon = Notificator::Critical;
 744     }
 745     else if (style & CClientUIInterface::ICON_WARNING) {
 746         nMBoxIcon = QMessageBox::Warning;
 747         nNotifyIcon = Notificator::Warning;
 748     }
 749
 750     // Display message
 751     if (style & CClientUIInterface::MODAL) {
 752         // Check for buttons, use OK as default, if none was supplied
 753         QMessageBox::StandardButton buttons;
 754         buttons = QMessageBox::Ok;
 755
 756         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 757
 758         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 759
 760         mBox.exec();
 761     }
 762     else
 763         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 764 }
 765
 766
 767 void BitcoinGUI::changeEvent(QEvent *e)
 768 {
 769     QMainWindow::changeEvent(e);
 770 #ifndef Q_OS_MAC // Ignored on Mac
 771     if(e->type() == QEvent::WindowStateChange)
 772     {
 773         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 774         {
 775             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 776             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 777             {
 778                 QTimer::singleShot(0, this, SLOT(hide()));
 779                 e->ignore();
 780             }
 781         }
 782     }
 783 #endif
 784 }
 785
 786 void BitcoinGUI::closeEvent(QCloseEvent *event)
 787 {
 788     if(clientModel)
 789     {
 790 #ifndef Q_OS_MAC // Ignored on Mac
 791         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 792            !clientModel->getOptionsModel()->getMinimizeOnClose())
 793         {
 794             qApp->quit();
 795         }
 796 #endif
 797     }
 798     QMainWindow::closeEvent(event);
 799 }
 800
 801 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 802 {
 803     QString strMessage =
 804         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 805           "which goes to the nodes that process your transaction and helps to support the network.  "
 806           "Do you want to pay the fee?").arg(
 807                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 808     QMessageBox::StandardButton retval = QMessageBox::question(
 809           this, tr("Confirm transaction fee"), strMessage,
 810           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 811     *payFee = (retval == QMessageBox::Yes);
 812 }
 813
 814 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 815 {
 816     if(!walletModel || !clientModel)
 817         return;
 818     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 819     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 820                     .data(Qt::EditRole).toULongLong();
 821     if(!clientModel->inInitialBlockDownload())
 822     {
 823         // On new transaction, make an info balloon
 824         // Unless the initial block download is in progress, to prevent balloon-spam
 825         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 826                         .data().toString();
 827         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 828                         .data().toString();
 829         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 830                         .data().toString();
 831         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 832                             TransactionTableModel::ToAddress, parent)
 833                         .data(Qt::DecorationRole));
 834
 835         notificator->notify(Notificator::Information,
 836                             (amount)<0 ? tr("Sent transaction") :
 837                                          tr("Incoming transaction"),
 838                               tr("Date: %1\n"
 839                                  "Amount: %2\n"
 840                                  "Type: %3\n"
 841                                  "Address: %4\n")
 842                               .arg(date)
 843                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 844                               .arg(type)
 845                               .arg(address), icon);
 846     }
 847 }
 848
 849 void BitcoinGUI::gotoOverviewPage()
 850 {
 851     overviewAction->setChecked(true);
 852     centralWidget->setCurrentWidget(overviewPage);
 853
 854     exportAction->setEnabled(false);
 855     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 856 }
 857
 858 void BitcoinGUI::gotoHistoryPage()
 859 {
 860     historyAction->setChecked(true);
 861     centralWidget->setCurrentWidget(transactionsPage);
 862
 863     exportAction->setEnabled(true);
 864     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 865     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 866 }
 867
 868 void BitcoinGUI::gotoMintingPage()
 869 {
 870     mintingAction->setChecked(true);
 871     centralWidget->setCurrentWidget(mintingPage);
 872
 873     exportAction->setEnabled(true);
 874     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 875     connect(exportAction, SIGNAL(triggered()), mintingView, SLOT(exportClicked()));
 876 }
 877
 878
 879 void BitcoinGUI::gotoAddressBookPage()
 880 {
 881     addressBookAction->setChecked(true);
 882     centralWidget->setCurrentWidget(addressBookPage);
 883
 884     exportAction->setEnabled(true);
 885     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 886     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 887 }
 888
 889 void BitcoinGUI::gotoReceiveCoinsPage()
 890 {
 891     receiveCoinsAction->setChecked(true);
 892     centralWidget->setCurrentWidget(receiveCoinsPage);
 893
 894     exportAction->setEnabled(true);
 895     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 896     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 897 }
 898
 899 void BitcoinGUI::gotoSendCoinsPage()
 900 {
 901     sendCoinsAction->setChecked(true);
 902     centralWidget->setCurrentWidget(sendCoinsPage);
 903
 904     exportAction->setEnabled(false);
 905     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 906 }
 907
 908 void BitcoinGUI::gotoSignMessageTab(QString addr)
 909 {
 910     // call show() in showTab_SM()
 911     signVerifyMessageDialog->showTab_SM(true);
 912
 913     if(!addr.isEmpty())
 914         signVerifyMessageDialog->setAddress_SM(addr);
 915 }
 916
 917 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 918 {
 919     // call show() in showTab_VM()
 920     signVerifyMessageDialog->showTab_VM(true);
 921
 922     if(!addr.isEmpty())
 923         signVerifyMessageDialog->setAddress_VM(addr);
 924 }
 925
 926 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 927 {
 928     // Accept only URIs
 929     if(event->mimeData()->hasUrls())
 930         event->acceptProposedAction();
 931 }
 932
 933 void BitcoinGUI::dropEvent(QDropEvent *event)
 934 {
 935     if(event->mimeData()->hasUrls())
 936     {
 937         int nValidUrisFound = 0;
 938         QList<QUrl> uris = event->mimeData()->urls();
 939         foreach(const QUrl &uri, uris)
 940         {
 941             if (sendCoinsPage->handleURI(uri.toString()))
 942                 nValidUrisFound++;
 943         }
 944
 945         // if valid URIs were found
 946         if (nValidUrisFound)
 947             gotoSendCoinsPage();
 948         else
 949             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."));
 950     }
 951
 952     event->acceptProposedAction();
 953 }
 954
 955 void BitcoinGUI::handleURI(QString strURI)
 956 {
 957     // URI has to be valid
 958     if (sendCoinsPage->handleURI(strURI))
 959     {
 960         showNormalIfMinimized();
 961         gotoSendCoinsPage();
 962     }
 963     else
 964         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."));
 965 }
 966
 967 void BitcoinGUI::setEncryptionStatus(int status)
 968 {
 969     switch(status)
 970     {
 971     case WalletModel::Unencrypted:
 972         labelEncryptionIcon->hide();
 973         encryptWalletAction->setChecked(false);
 974         changePassphraseAction->setEnabled(false);
 975         lockWalletAction->setEnabled(false);
 976         unlockWalletAction->setEnabled(false);
 977         unlockWalletMiningAction->setEnabled(false);
 978         encryptWalletAction->setEnabled(true);
 979         break;
 980     case WalletModel::Unlocked:
 981         labelEncryptionIcon->show();
 982         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 983         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 984         encryptWalletAction->setChecked(true);
 985         changePassphraseAction->setEnabled(true);
 986         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 987
 988         lockWalletAction->setEnabled(true);
 989         lockWalletAction->setChecked(false);
 990         unlockWalletAction->setEnabled(false);
 991         unlockWalletMiningAction->setEnabled(false);
 992
 993         if (fWalletUnlockMintOnly)
 994             unlockWalletMiningAction->setChecked(true);
 995         else
 996             unlockWalletAction->setChecked(true);
 997
 998         break;
 999     case WalletModel::Locked:
1000         labelEncryptionIcon->show();
1001         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1002         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1003         encryptWalletAction->setChecked(true);
1004         changePassphraseAction->setEnabled(true);
1005         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1006
1007         lockWalletAction->setChecked(true);
1008         unlockWalletAction->setChecked(false);
1009         unlockWalletMiningAction->setChecked(false);
1010
1011         lockWalletAction->setEnabled(false);
1012         unlockWalletAction->setEnabled(true);
1013         unlockWalletMiningAction->setEnabled(true);
1014         break;
1015     }
1016 }
1017
1018 void BitcoinGUI::encryptWallet(bool status)
1019 {
1020     if(!walletModel)
1021         return;
1022     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
1023                                      AskPassphraseDialog::Decrypt, this);
1024     dlg.setModel(walletModel);
1025     dlg.exec();
1026
1027     setEncryptionStatus(walletModel->getEncryptionStatus());
1028 }
1029
1030 void BitcoinGUI::unlockWalletMining(bool status)
1031 {
1032     if(!walletModel)
1033         return;
1034
1035     // Unlock wallet when requested by wallet model
1036     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1037     {
1038         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1039         dlg.setModel(walletModel);
1040         dlg.exec();
1041     }
1042 }
1043
1044 void BitcoinGUI::backupWallet()
1045 {
1046 #if QT_VERSION < 0x050000
1047     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1048 #else
1049     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1050 #endif
1051     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1052     if(!filename.isEmpty()) {
1053         if(!walletModel->backupWallet(filename)) {
1054             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1055         }
1056     }
1057 }
1058
1059 void BitcoinGUI::dumpWallet()
1060 {
1061    if(!walletModel)
1062       return;
1063
1064    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1065    if(!ctx.isValid())
1066    {
1067        // Unlock wallet failed or was cancelled
1068        return;
1069    }
1070
1071 #if QT_VERSION < 0x050000
1072     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1073 #else
1074     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1075 #endif
1076     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1077     if(!filename.isEmpty()) {
1078         if(!walletModel->dumpWallet(filename)) {
1079             error(tr("Dump failed"),
1080                          tr("An error happened while trying to save the keys to your location.\n"
1081                             "Keys were not saved.")
1082                       ,CClientUIInterface::MSG_ERROR);
1083         }
1084         else
1085           message(tr("Dump successful"),
1086                        tr("Keys were saved to this file:\n%2")
1087                        .arg(filename)
1088                       ,CClientUIInterface::MSG_INFORMATION);
1089     }
1090 }
1091
1092 void BitcoinGUI::importWallet()
1093 {
1094    if(!walletModel)
1095       return;
1096
1097    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1098    if(!ctx.isValid())
1099    {
1100        // Unlock wallet failed or was cancelled
1101        return;
1102    }
1103
1104 #if QT_VERSION < 0x050000
1105     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1106 #else
1107     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1108 #endif
1109     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1110     if(!filename.isEmpty()) {
1111         if(!walletModel->importWallet(filename)) {
1112             error(tr("Import Failed"),
1113                          tr("An error happened while trying to import the keys.\n"
1114                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1115                          .arg(filename)
1116                       ,CClientUIInterface::MSG_ERROR);
1117         }
1118         else
1119           message(tr("Import Successful"),
1120                        tr("All keys from:\n %1,\n were imported into your wallet.")
1121                        .arg(filename)
1122                       ,CClientUIInterface::MSG_INFORMATION);
1123     }
1124 }
1125
1126
1127 void BitcoinGUI::changePassphrase()
1128 {
1129     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1130     dlg.setModel(walletModel);
1131     dlg.exec();
1132 }
1133
1134 void BitcoinGUI::unlockWallet()
1135 {
1136     if(!walletModel)
1137         return;
1138     // Unlock wallet when requested by wallet model
1139     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1140     {
1141         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1142         dlg.setModel(walletModel);
1143         dlg.exec();
1144     }
1145 }
1146
1147 void BitcoinGUI::lockWallet()
1148 {
1149     if(!walletModel)
1150         return;
1151
1152     walletModel->setWalletLocked(true);
1153 }
1154
1155 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1156 {
1157     // activateWindow() (sometimes) helps with keyboard focus on Windows
1158     if (isHidden())
1159     {
1160         show();
1161         activateWindow();
1162     }
1163     else if (isMinimized())
1164     {
1165         showNormal();
1166         activateWindow();
1167     }
1168     else if (GUIUtil::isObscured(this))
1169     {
1170         raise();
1171         activateWindow();
1172     }
1173     else if(fToggleHidden)
1174         hide();
1175 }
1176
1177 void BitcoinGUI::toggleHidden()
1178 {
1179     showNormalIfMinimized(true);
1180 }