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 "multisigdialog.h"
  13 #include "optionsdialog.h"
  14 #include "aboutdialog.h"
  15 #include "clientmodel.h"
  16 #include "walletmodel.h"
  17 #include "editaddressdialog.h"
  18 #include "optionsmodel.h"
  19 #include "transactiondescdialog.h"
  20 #include "addresstablemodel.h"
  21 #include "transactionview.h"
  22 #include "overviewpage.h"
  23 #include "bitcoinunits.h"
  24 #include "guiconstants.h"
  25 #include "askpassphrasedialog.h"
  26 #include "notificator.h"
  27 #include "guiutil.h"
  28 #include "ui_interface.h"
  29 #include "rpcconsole.h"
  30 #include "mintingview.h"
  31
  32 #ifdef Q_OS_MAC
  33 #include "macdockiconhandler.h"
  34 #endif
  35
  36 #include <QApplication>
  37 #if QT_VERSION < 0x050000
  38 #include <QMainWindow>
  39 #endif
  40 #include <QMenuBar>
  41 #include <QMenu>
  42 #include <QIcon>
  43 #include <QTabWidget>
  44 #include <QVBoxLayout>
  45 #include <QToolBar>
  46 #include <QStatusBar>
  47 #include <QLabel>
  48 #include <QLineEdit>
  49 #include <QPushButton>
  50 #include <QLocale>
  51 #include <QMessageBox>
  52 #include <QProgressBar>
  53 #include <QStackedWidget>
  54 #include <QDateTime>
  55 #include <QMovie>
  56 #include <QFileDialog>
  57 #if QT_VERSION < 0x050000
  58 #include <QDesktopServices>
  59 #else
  60 #include <QStandardPaths>
  61 #endif
  62 #include <QTimer>
  63 #include <QDragEnterEvent>
  64 #if QT_VERSION < 0x050000
  65 #include <QUrl>
  66 #endif
  67 #include <QStyle>
  68 #include <QMimeData>
  69
  70 #include <iostream>
  71
  72 extern bool fWalletUnlockMintOnly;
  73
  74 BitcoinGUI::BitcoinGUI(QWidget *parent):
  75     QMainWindow(parent),
  76     clientModel(0),
  77     walletModel(0),
  78     encryptWalletAction(0),
  79     lockWalletAction(0),
  80     unlockWalletAction(0),
  81     unlockWalletMiningAction(0),
  82     changePassphraseAction(0),
  83     aboutQtAction(0),
  84     trayIcon(0),
  85     notificator(0),
  86     rpcConsole(0)
  87 {
  88     resize(850, 550);
  89     setWindowTitle(tr("NovaCoin") + " - " + tr("Wallet"));
  90 #ifndef Q_OS_MAC
  91     qApp->setWindowIcon(QIcon(":icons/bitcoin"));
  92     setWindowIcon(QIcon(":icons/bitcoin"));
  93 #else
  94     setUnifiedTitleAndToolBarOnMac(true);
  95     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  96 #endif
  97     // Accept D&D of URIs
  98     setAcceptDrops(true);
  99
 100     // Create actions for the toolbar, menu bar and tray/dock icon
 101     createActions();
 102
 103     // Create application menu bar
 104     createMenuBar();
 105
 106     // Create the toolbars
 107     createToolBars();
 108
 109     // Create the tray icon (or setup the dock icon)
 110     createTrayIcon();
 111
 112     // Create tabs
 113     overviewPage = new OverviewPage();
 114
 115     transactionsPage = new QWidget(this);
 116     QVBoxLayout *vbox = new QVBoxLayout();
 117     transactionView = new TransactionView(this);
 118     vbox->addWidget(transactionView);
 119     transactionsPage->setLayout(vbox);
 120
 121     mintingPage = new QWidget(this);
 122     QVBoxLayout *vboxMinting = new QVBoxLayout();
 123     mintingView = new MintingView(this);
 124     vboxMinting->addWidget(mintingView);
 125     mintingPage->setLayout(vboxMinting);
 126
 127     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 128
 129     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 130
 131     sendCoinsPage = new SendCoinsDialog(this);
 132
 133     signVerifyMessageDialog = new SignVerifyMessageDialog(this);
 134
 135     multisigPage = new MultisigDialog(this);
 136
 137     centralWidget = new QStackedWidget(this);
 138     centralWidget->addWidget(overviewPage);
 139     centralWidget->addWidget(transactionsPage);
 140     centralWidget->addWidget(mintingPage);
 141     centralWidget->addWidget(addressBookPage);
 142     centralWidget->addWidget(receiveCoinsPage);
 143     centralWidget->addWidget(sendCoinsPage);
 144     setCentralWidget(centralWidget);
 145
 146     // Create status bar
 147     statusBar();
 148
 149     // Status bar notification icons
 150     QFrame *frameBlocks = new QFrame();
 151     frameBlocks->setContentsMargins(0,0,0,0);
 152     frameBlocks->setMinimumWidth(72);
 153     frameBlocks->setMaximumWidth(72);
 154     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 155     frameBlocksLayout->setContentsMargins(3,0,3,0);
 156     frameBlocksLayout->setSpacing(3);
 157     labelEncryptionIcon = new QLabel();
 158     labelMiningIcon = new QLabel();
 159     labelConnectionsIcon = new QLabel();
 160     labelBlocksIcon = new QLabel();
 161     frameBlocksLayout->addStretch();
 162     frameBlocksLayout->addWidget(labelEncryptionIcon);
 163     frameBlocksLayout->addStretch();
 164     frameBlocksLayout->addWidget(labelMiningIcon);
 165     frameBlocksLayout->addStretch();
 166     frameBlocksLayout->addWidget(labelConnectionsIcon);
 167     frameBlocksLayout->addStretch();
 168     frameBlocksLayout->addWidget(labelBlocksIcon);
 169     frameBlocksLayout->addStretch();
 170
 171     // Progress bar and label for blocks download
 172     progressBarLabel = new QLabel();
 173     progressBarLabel->setVisible(false);
 174     progressBar = new QProgressBar();
 175     progressBar->setAlignment(Qt::AlignCenter);
 176     progressBar->setVisible(false);
 177
 178     // Override style sheet for progress bar for styles that have a segmented progress bar,
 179     // as they make the text unreadable (workaround for issue #1071)
 180     // See https://qt-project.org/doc/qt-4.8/gallery.html
 181     QString curStyle = qApp->style()->metaObject()->className();
 182     if(curStyle == "QWindowsStyle" || curStyle == "QWindowsXPStyle")
 183     {
 184         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; }");
 185     }
 186
 187     statusBar()->addWidget(progressBarLabel);
 188     statusBar()->addWidget(progressBar);
 189     statusBar()->addPermanentWidget(frameBlocks);
 190
 191     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 192
 193     // Clicking on a transaction on the overview page simply sends you to transaction history page
 194     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 195     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
 196
 197     // Double-clicking on a transaction on the transaction history page shows details
 198     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 199
 200     rpcConsole = new RPCConsole(this);
 201     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
 202
 203     // Clicking on "Verify Message" in the address book sends you to the verify message tab
 204     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
 205     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
 206     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 207
 208     gotoOverviewPage();
 209 }
 210
 211 BitcoinGUI::~BitcoinGUI()
 212 {
 213     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 214         trayIcon->hide();
 215 #ifdef Q_OS_MAC
 216     delete appMenuBar;
 217 #endif
 218 }
 219
 220 void BitcoinGUI::createActions()
 221 {
 222     QActionGroup *tabGroup = new QActionGroup(this);
 223
 224     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 225     overviewAction->setToolTip(tr("Show general overview of wallet"));
 226     overviewAction->setCheckable(true);
 227     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 228     tabGroup->addAction(overviewAction);
 229
 230     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 231     sendCoinsAction->setToolTip(tr("Send coins to a NovaCoin address"));
 232     sendCoinsAction->setCheckable(true);
 233     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 234     tabGroup->addAction(sendCoinsAction);
 235
 236     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 237     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 238     receiveCoinsAction->setCheckable(true);
 239     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 240     tabGroup->addAction(receiveCoinsAction);
 241
 242     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 243     historyAction->setToolTip(tr("Browse transaction history"));
 244     historyAction->setCheckable(true);
 245     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 246     tabGroup->addAction(historyAction);
 247
 248     mintingAction = new QAction(QIcon(":/icons/history"), tr("&Minting"), this);
 249     mintingAction->setToolTip(tr("Show your minting capacity"));
 250     mintingAction->setCheckable(true);
 251     mintingAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 252     tabGroup->addAction(mintingAction);
 253
 254     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 255     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 256     addressBookAction->setCheckable(true);
 257     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_6));
 258     tabGroup->addAction(addressBookAction);
 259
 260     multisigAction = new QAction(QIcon(":/icons/send"), tr("Multisig"), this);
 261     tabGroup->addAction(multisigAction);
 262
 263     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 264     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 265     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 266     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 267     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 268     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 269     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 270     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 271     connect(mintingAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 272     connect(mintingAction, SIGNAL(triggered()), this, SLOT(gotoMintingPage()));
 273     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 274     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 275     connect(multisigAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 276     connect(multisigAction, SIGNAL(triggered()), this, SLOT(gotoMultisigPage()));
 277
 278     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 279     quitAction->setToolTip(tr("Quit application"));
 280     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 281     quitAction->setMenuRole(QAction::QuitRole);
 282     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About NovaCoin"), this);
 283     aboutAction->setToolTip(tr("Show information about NovaCoin"));
 284     aboutAction->setMenuRole(QAction::AboutRole);
 285 #if QT_VERSION < 0x050000
 286     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 287 #else
 288     aboutQtAction = new QAction(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 289 #endif
 290     aboutQtAction->setToolTip(tr("Show information about Qt"));
 291     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 292     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 293     optionsAction->setToolTip(tr("Modify configuration options for NovaCoin"));
 294     optionsAction->setMenuRole(QAction::PreferencesRole);
 295     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
 296     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 297     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 298     encryptWalletAction->setCheckable(true);
 299     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 300     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 301     dumpWalletAction = new QAction(QIcon(":/icons/dump"), tr("&Dump Wallet..."), this);
 302     dumpWalletAction->setStatusTip(tr("Dump keys to a text file"));
 303     importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
 304     importWalletAction->setStatusTip(tr("Import keys into a wallet"));
 305     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 306     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 307     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
 308     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
 309
 310     lockWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Lock wallet"), this);
 311     lockWalletAction->setToolTip(tr("Lock wallet"));
 312     lockWalletAction->setCheckable(true);
 313
 314     unlockWalletAction = new QAction(QIcon(":/icons/lock_open"), tr("Unlo&ck wallet"), this);
 315     unlockWalletAction->setToolTip(tr("Unlock wallet"));
 316     unlockWalletAction->setCheckable(true);
 317
 318     unlockWalletMiningAction = new QAction(QIcon(":/icons/mining_active"), tr("Unlo&ck wallet for mining"), this);
 319     unlockWalletMiningAction->setToolTip(tr("Unlock wallet for mining"));
 320     unlockWalletMiningAction->setCheckable(true);
 321
 322     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 323     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 324     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 325     openRPCConsoleAction->setToolTip(tr("Open debugging and diagnostic console"));
 326
 327     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 328     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 329     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 330     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 331     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 332     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 333     connect(lockWalletAction, SIGNAL(triggered(bool)), this, SLOT(lockWallet()));
 334     connect(unlockWalletAction, SIGNAL(triggered(bool)), this, SLOT(unlockWallet()));
 335     connect(unlockWalletMiningAction, SIGNAL(triggered(bool)), this, SLOT(unlockWalletMining(bool)));
 336     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 337     connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
 338     connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 339     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 340     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 341     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 342 }
 343
 344 void BitcoinGUI::createMenuBar()
 345 {
 346 #ifdef Q_OS_MAC
 347     // Create a decoupled menu bar on Mac which stays even if the window is closed
 348     appMenuBar = new QMenuBar();
 349 #else
 350     // Get the main window's menu bar on other platforms
 351     appMenuBar = menuBar();
 352 #endif
 353
 354     // Configure the menus
 355     QMenu *file = appMenuBar->addMenu(tr("&File"));
 356     file->addAction(backupWalletAction);
 357     file->addSeparator();
 358     file->addAction(dumpWalletAction);
 359     file->addAction(importWalletAction);
 360     file->addAction(exportAction);
 361     file->addAction(signMessageAction);
 362     file->addAction(verifyMessageAction);
 363     file->addAction(multisigAction);
 364     file->addSeparator();
 365     file->addAction(quitAction);
 366
 367     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 368     QMenu *securityMenu = settings->addMenu(QIcon(":/icons/key"), tr("&Wallet security"));
 369     securityMenu->addAction(encryptWalletAction);
 370     securityMenu->addAction(changePassphraseAction);
 371     securityMenu->addAction(unlockWalletAction);
 372     securityMenu->addAction(unlockWalletMiningAction);
 373     securityMenu->addAction(lockWalletAction);
 374     settings->addAction(optionsAction);
 375
 376     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 377     help->addAction(openRPCConsoleAction);
 378     help->addSeparator();
 379     help->addAction(aboutAction);
 380     help->addAction(aboutQtAction);
 381 }
 382
 383 void BitcoinGUI::createToolBars()
 384 {
 385     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 386     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 387     toolbar->addAction(overviewAction);
 388     toolbar->addAction(sendCoinsAction);
 389     toolbar->addAction(receiveCoinsAction);
 390     toolbar->addAction(historyAction);
 391     toolbar->addAction(mintingAction);
 392     toolbar->addAction(addressBookAction);
 393
 394     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 395     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 396     toolbar2->addAction(exportAction);
 397     toolbar2->setVisible(false);
 398
 399 }
 400
 401 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 402 {
 403     this->clientModel = clientModel;
 404     if(clientModel)
 405     {
 406         // Replace some strings and icons, when using the testnet
 407         if(clientModel->isTestNet())
 408         {
 409             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 410 #ifndef Q_OS_MAC
 411             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 412             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 413 #else
 414             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 415 #endif
 416             if(trayIcon)
 417             {
 418                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 419                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 420                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 421             }
 422
 423             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 424         }
 425
 426         // Keep up to date with client
 427         setNumConnections(clientModel->getNumConnections());
 428         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 429
 430         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 431         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 432
 433         QTimer *timer = new QTimer(this);
 434         connect(timer, SIGNAL(timeout()), this, SLOT(updateMining()));
 435         timer->start(10*1000); //10 seconds
 436
 437         // Report errors from network/worker thread
 438         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 439
 440         rpcConsole->setClientModel(clientModel);
 441         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 442         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 443     }
 444 }
 445
 446 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 447 {
 448     this->walletModel = walletModel;
 449     if(walletModel)
 450     {
 451         // Report errors from wallet thread
 452         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 453
 454         // Put transaction list in tabs
 455         transactionView->setModel(walletModel);
 456         mintingView->setModel(walletModel);
 457
 458         overviewPage->setModel(walletModel);
 459         addressBookPage->setModel(walletModel->getAddressTableModel());
 460         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 461         sendCoinsPage->setModel(walletModel);
 462         signVerifyMessageDialog->setModel(walletModel);
 463         multisigPage->setModel(walletModel);
 464
 465         setEncryptionStatus(walletModel->getEncryptionStatus());
 466         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 467         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 468
 469         // Balloon pop-up for new transaction
 470         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 471                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 472
 473         // Ask for passphrase if needed
 474         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 475     }
 476 }
 477
 478 void BitcoinGUI::createTrayIcon()
 479 {
 480     QMenu *trayIconMenu;
 481 #ifndef Q_OS_MAC
 482     trayIcon = new QSystemTrayIcon(this);
 483     trayIconMenu = new QMenu(this);
 484     trayIcon->setContextMenu(trayIconMenu);
 485     trayIcon->setToolTip(tr("NovaCoin client"));
 486     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 487     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 488             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 489     trayIcon->show();
 490 #else
 491     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 492     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 493     dockIconHandler->setMainWindow((QMainWindow *)this);
 494     trayIconMenu = dockIconHandler->dockMenu();
 495 #endif
 496
 497     // Configuration of the tray icon (or dock icon) icon menu
 498     trayIconMenu->addAction(toggleHideAction);
 499     trayIconMenu->addSeparator();
 500     trayIconMenu->addAction(sendCoinsAction);
 501     trayIconMenu->addAction(multisigAction);
 502     trayIconMenu->addAction(receiveCoinsAction);
 503     trayIconMenu->addSeparator();
 504     trayIconMenu->addAction(signMessageAction);
 505     trayIconMenu->addAction(verifyMessageAction);
 506     trayIconMenu->addSeparator();
 507     trayIconMenu->addAction(optionsAction);
 508     trayIconMenu->addAction(openRPCConsoleAction);
 509 #ifndef Q_OS_MAC
 510     // This is built-in on Mac
 511     trayIconMenu->addSeparator();
 512     trayIconMenu->addAction(quitAction);
 513
 514     notificator = new Notificator(qApp->applicationName(), trayIcon, 0);
 515 #endif
 516 }
 517
 518 #ifndef Q_OS_MAC
 519 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 520 {
 521     if(reason == QSystemTrayIcon::Trigger)
 522     {
 523         // Click on system tray icon triggers show/hide of the main window
 524         toggleHideAction->trigger();
 525     }
 526 }
 527 #endif
 528
 529 void BitcoinGUI::optionsClicked()
 530 {
 531     if(!clientModel || !clientModel->getOptionsModel())
 532         return;
 533     OptionsDialog dlg;
 534     dlg.setModel(clientModel->getOptionsModel());
 535     dlg.exec();
 536 }
 537
 538 void BitcoinGUI::aboutClicked()
 539 {
 540     AboutDialog dlg;
 541     dlg.setModel(clientModel);
 542     dlg.exec();
 543 }
 544
 545 void BitcoinGUI::setNumConnections(int count)
 546 {
 547     QString icon;
 548     switch(count)
 549     {
 550     case 0: icon = ":/icons/connect_0"; break;
 551     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 552     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 553     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 554     default: icon = ":/icons/connect_4"; break;
 555     }
 556     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 557     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 558 }
 559
 560 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 561 {
 562     // don't show / hide progress bar and its label if we have no connection to the network
 563     if (!clientModel || clientModel->getNumConnections() == 0)
 564     {
 565         progressBarLabel->setVisible(false);
 566         progressBar->setVisible(false);
 567
 568         return;
 569     }
 570
 571     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 572     QString tooltip;
 573
 574     if(count < nTotalBlocks)
 575     {
 576         int nRemainingBlocks = nTotalBlocks - count;
 577         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 578
 579         if (strStatusBarWarnings.isEmpty())
 580         {
 581             progressBarLabel->setText(tr("Synchronizing with network..."));
 582             progressBarLabel->setVisible(true);
 583             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 584             progressBar->setMaximum(nTotalBlocks);
 585             progressBar->setValue(count);
 586             progressBar->setVisible(true);
 587         }
 588
 589         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 590     }
 591     else
 592     {
 593         if (strStatusBarWarnings.isEmpty())
 594             progressBarLabel->setVisible(false);
 595
 596         progressBar->setVisible(false);
 597         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 598     }
 599
 600     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 601     if (!strStatusBarWarnings.isEmpty())
 602     {
 603         progressBarLabel->setText(strStatusBarWarnings);
 604         progressBarLabel->setVisible(true);
 605         progressBar->setVisible(false);
 606     }
 607
 608     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 609     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 610     QString text;
 611
 612     // Represent time from last generated block in human readable text
 613     if(secs <= 0)
 614     {
 615         // Fully up to date. Leave text empty.
 616     }
 617     else if(secs < 60)
 618     {
 619         text = tr("%n second(s) ago","",secs);
 620     }
 621     else if(secs < 60*60)
 622     {
 623         text = tr("%n minute(s) ago","",secs/60);
 624     }
 625     else if(secs < 24*60*60)
 626     {
 627         text = tr("%n hour(s) ago","",secs/(60*60));
 628     }
 629     else
 630     {
 631         text = tr("%n day(s) ago","",secs/(60*60*24));
 632     }
 633
 634     // Set icon state: spinning if catching up, tick otherwise
 635     if(secs < 90*60 && count >= nTotalBlocks)
 636     {
 637         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 638         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 639
 640         overviewPage->showOutOfSyncWarning(false);
 641     }
 642     else
 643     {
 644         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 645         labelBlocksIcon->setMovie(syncIconMovie);
 646         syncIconMovie->start();
 647
 648         overviewPage->showOutOfSyncWarning(true);
 649     }
 650
 651     if(!text.isEmpty())
 652     {
 653         tooltip += QString("<br>");
 654         tooltip += tr("Last received block was generated %1.").arg(text);
 655     }
 656
 657     // Don't word-wrap this (fixed-width) tooltip
 658     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 659
 660     labelBlocksIcon->setToolTip(tooltip);
 661     progressBarLabel->setToolTip(tooltip);
 662     progressBar->setToolTip(tooltip);
 663 }
 664
 665 void BitcoinGUI::updateMining()
 666 {
 667    if(!walletModel)
 668       return;
 669
 670     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 671
 672     if (!clientModel->getNumConnections())
 673     {
 674         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 675         return;
 676     }
 677
 678     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 679     {
 680         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 681         return;
 682     }
 683
 684     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 685     {
 686         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 687         return;
 688     }
 689
 690     float nKernelsRate = 0, nCoinDaysRate = 0;
 691     walletModel->getStakeStats(nKernelsRate, nCoinDaysRate);
 692
 693     if (nKernelsRate > 0)
 694     {
 695         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 696
 697         uint64 nNetworkWeight = clientModel->getPoSKernelPS();
 698 /*
 699         double dDifficulty = clientModel->getDifficulty(true);
 700         QString msg;
 701
 702         int nApproxTime = 4294967297 * dDifficulty / nTotalWeight;
 703
 704         if (nApproxTime < 60)
 705             msg = tr("%n second(s)", "", nApproxTime);
 706         else if (nApproxTime < 60*60)
 707             msg = tr("%n minute(s)", "", nApproxTime / 60);
 708         else if (nApproxTime < 24*60*60)
 709             msg = tr("%n hour(s)", "", nApproxTime / 3600);
 710         else
 711             msg = tr("%n day(s)", "", nApproxTime / 86400);
 712
 713         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));
 714 */
 715
 716         labelMiningIcon->setToolTip(tr("Stake miner is active\nKernel rate is %1 k/s\nCD rate is %2 CD/s\nNetwork weight is %3").arg(nKernelsRate).arg(nCoinDaysRate).arg(nNetworkWeight));
 717     }
 718     else
 719         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 720 }
 721
 722 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 723 {
 724     // Report errors from network/worker thread
 725     if(modal)
 726     {
 727         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 728     } else {
 729         notificator->notify(Notificator::Critical, title, message);
 730     }
 731 }
 732
 733 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 734 {
 735     QString strTitle = tr("NovaCoin") + " - ";
 736     // Default to information icon
 737     int nMBoxIcon = QMessageBox::Information;
 738     int nNotifyIcon = Notificator::Information;
 739
 740
 741     // Check for usage of predefined title
 742     switch (style) {
 743     case CClientUIInterface::MSG_ERROR:
 744         strTitle += tr("Error");
 745         break;
 746     case CClientUIInterface::MSG_WARNING:
 747         strTitle += tr("Warning");
 748         break;
 749     case CClientUIInterface::MSG_INFORMATION:
 750         strTitle += tr("Information");
 751         break;
 752     default:
 753         strTitle += title; // Use supplied title
 754     }
 755
 756     // Check for error/warning icon
 757     if (style & CClientUIInterface::ICON_ERROR) {
 758         nMBoxIcon = QMessageBox::Critical;
 759         nNotifyIcon = Notificator::Critical;
 760     }
 761     else if (style & CClientUIInterface::ICON_WARNING) {
 762         nMBoxIcon = QMessageBox::Warning;
 763         nNotifyIcon = Notificator::Warning;
 764     }
 765
 766     // Display message
 767     if (style & CClientUIInterface::MODAL) {
 768         // Check for buttons, use OK as default, if none was supplied
 769         QMessageBox::StandardButton buttons;
 770         buttons = QMessageBox::Ok;
 771
 772         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 773
 774         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 775
 776         mBox.exec();
 777     }
 778     else
 779         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 780 }
 781
 782
 783 void BitcoinGUI::changeEvent(QEvent *e)
 784 {
 785     QMainWindow::changeEvent(e);
 786 #ifndef Q_OS_MAC // Ignored on Mac
 787     if(e->type() == QEvent::WindowStateChange)
 788     {
 789         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 790         {
 791             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 792             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 793             {
 794                 QTimer::singleShot(0, this, SLOT(hide()));
 795                 e->ignore();
 796             }
 797         }
 798     }
 799 #endif
 800 }
 801
 802 void BitcoinGUI::closeEvent(QCloseEvent *event)
 803 {
 804     if(clientModel)
 805     {
 806 #ifndef Q_OS_MAC // Ignored on Mac
 807         if(!clientModel->getOptionsModel()->getMinimizeOnClose())
 808         {
 809             qApp->quit();
 810         }
 811 #endif
 812     }
 813     QMainWindow::closeEvent(event);
 814 }
 815
 816 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 817 {
 818     QString strMessage =
 819         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 820           "which goes to the nodes that process your transaction and helps to support the network.  "
 821           "Do you want to pay the fee?").arg(
 822                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 823     QMessageBox::StandardButton retval = QMessageBox::question(
 824           this, tr("Confirm transaction fee"), strMessage,
 825           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 826     *payFee = (retval == QMessageBox::Yes);
 827 }
 828
 829 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 830 {
 831     if(!walletModel || !clientModel)
 832         return;
 833     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 834     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 835                     .data(Qt::EditRole).toULongLong();
 836     if(!clientModel->inInitialBlockDownload())
 837     {
 838         // On new transaction, make an info balloon
 839         // Unless the initial block download is in progress, to prevent balloon-spam
 840         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 841                         .data().toString();
 842         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 843                         .data().toString();
 844         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 845                         .data().toString();
 846         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 847                             TransactionTableModel::ToAddress, parent)
 848                         .data(Qt::DecorationRole));
 849
 850         notificator->notify(Notificator::Information,
 851                             (amount)<0 ? tr("Sent transaction") :
 852                                          tr("Incoming transaction"),
 853                               tr("Date: %1\n"
 854                                  "Amount: %2\n"
 855                                  "Type: %3\n"
 856                                  "Address: %4\n")
 857                               .arg(date)
 858                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 859                               .arg(type)
 860                               .arg(address), icon);
 861     }
 862 }
 863
 864 void BitcoinGUI::gotoOverviewPage()
 865 {
 866     overviewAction->setChecked(true);
 867     centralWidget->setCurrentWidget(overviewPage);
 868
 869     exportAction->setEnabled(false);
 870     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 871 }
 872
 873 void BitcoinGUI::gotoHistoryPage()
 874 {
 875     historyAction->setChecked(true);
 876     centralWidget->setCurrentWidget(transactionsPage);
 877
 878     exportAction->setEnabled(true);
 879     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 880     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 881 }
 882
 883 void BitcoinGUI::gotoMintingPage()
 884 {
 885     mintingAction->setChecked(true);
 886     centralWidget->setCurrentWidget(mintingPage);
 887
 888     exportAction->setEnabled(true);
 889     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 890     connect(exportAction, SIGNAL(triggered()), mintingView, SLOT(exportClicked()));
 891 }
 892
 893
 894 void BitcoinGUI::gotoAddressBookPage()
 895 {
 896     addressBookAction->setChecked(true);
 897     centralWidget->setCurrentWidget(addressBookPage);
 898
 899     exportAction->setEnabled(true);
 900     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 901     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 902 }
 903
 904 void BitcoinGUI::gotoReceiveCoinsPage()
 905 {
 906     receiveCoinsAction->setChecked(true);
 907     centralWidget->setCurrentWidget(receiveCoinsPage);
 908
 909     exportAction->setEnabled(true);
 910     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 911     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 912 }
 913
 914 void BitcoinGUI::gotoSendCoinsPage()
 915 {
 916     sendCoinsAction->setChecked(true);
 917     centralWidget->setCurrentWidget(sendCoinsPage);
 918
 919     exportAction->setEnabled(false);
 920     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 921 }
 922
 923 void BitcoinGUI::gotoSignMessageTab(QString addr)
 924 {
 925     // call show() in showTab_SM()
 926     signVerifyMessageDialog->showTab_SM(true);
 927
 928     if(!addr.isEmpty())
 929         signVerifyMessageDialog->setAddress_SM(addr);
 930 }
 931
 932 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 933 {
 934     // call show() in showTab_VM()
 935     signVerifyMessageDialog->showTab_VM(true);
 936
 937     if(!addr.isEmpty())
 938         signVerifyMessageDialog->setAddress_VM(addr);
 939 }
 940
 941 void BitcoinGUI::gotoMultisigPage()
 942 {
 943     multisigPage->show();
 944     multisigPage->setFocus();
 945 }
 946
 947 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 948 {
 949     // Accept only URIs
 950     if(event->mimeData()->hasUrls())
 951         event->acceptProposedAction();
 952 }
 953
 954 void BitcoinGUI::dropEvent(QDropEvent *event)
 955 {
 956     if(event->mimeData()->hasUrls())
 957     {
 958         int nValidUrisFound = 0;
 959         QList<QUrl> uris = event->mimeData()->urls();
 960         foreach(const QUrl &uri, uris)
 961         {
 962             if (sendCoinsPage->handleURI(uri.toString()))
 963                 nValidUrisFound++;
 964         }
 965
 966         // if valid URIs were found
 967         if (nValidUrisFound)
 968             gotoSendCoinsPage();
 969         else
 970             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."));
 971     }
 972
 973     event->acceptProposedAction();
 974 }
 975
 976 void BitcoinGUI::handleURI(QString strURI)
 977 {
 978     // URI has to be valid
 979     if (sendCoinsPage->handleURI(strURI))
 980     {
 981         showNormalIfMinimized();
 982         gotoSendCoinsPage();
 983     }
 984     else
 985         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."));
 986 }
 987
 988 void BitcoinGUI::setEncryptionStatus(int status)
 989 {
 990     switch(status)
 991     {
 992     case WalletModel::Unencrypted:
 993         labelEncryptionIcon->hide();
 994         encryptWalletAction->setChecked(false);
 995         changePassphraseAction->setEnabled(false);
 996         lockWalletAction->setEnabled(false);
 997         unlockWalletAction->setEnabled(false);
 998         unlockWalletMiningAction->setEnabled(false);
 999         encryptWalletAction->setEnabled(true);
1000         break;
1001     case WalletModel::Unlocked:
1002         labelEncryptionIcon->show();
1003         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1004         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
1005         encryptWalletAction->setChecked(true);
1006         changePassphraseAction->setEnabled(true);
1007         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1008
1009         lockWalletAction->setEnabled(true);
1010         lockWalletAction->setChecked(false);
1011         unlockWalletAction->setEnabled(false);
1012         unlockWalletMiningAction->setEnabled(false);
1013
1014         if (fWalletUnlockMintOnly)
1015             unlockWalletMiningAction->setChecked(true);
1016         else
1017             unlockWalletAction->setChecked(true);
1018
1019         break;
1020     case WalletModel::Locked:
1021         labelEncryptionIcon->show();
1022         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1023         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1024         encryptWalletAction->setChecked(true);
1025         changePassphraseAction->setEnabled(true);
1026         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1027
1028         lockWalletAction->setChecked(true);
1029         unlockWalletAction->setChecked(false);
1030         unlockWalletMiningAction->setChecked(false);
1031
1032         lockWalletAction->setEnabled(false);
1033         unlockWalletAction->setEnabled(true);
1034         unlockWalletMiningAction->setEnabled(true);
1035         break;
1036     }
1037 }
1038
1039 void BitcoinGUI::encryptWallet(bool status)
1040 {
1041     if(!walletModel)
1042         return;
1043     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
1044                                      AskPassphraseDialog::Decrypt, this);
1045     dlg.setModel(walletModel);
1046     dlg.exec();
1047
1048     setEncryptionStatus(walletModel->getEncryptionStatus());
1049 }
1050
1051 void BitcoinGUI::unlockWalletMining(bool status)
1052 {
1053     if(!walletModel)
1054         return;
1055
1056     // Unlock wallet when requested by wallet model
1057     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1058     {
1059         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1060         dlg.setModel(walletModel);
1061         dlg.exec();
1062     }
1063 }
1064
1065 void BitcoinGUI::backupWallet()
1066 {
1067 #if QT_VERSION < 0x050000
1068     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1069 #else
1070     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1071 #endif
1072     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1073     if(!filename.isEmpty()) {
1074         if(!walletModel->backupWallet(filename)) {
1075             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1076         }
1077     }
1078 }
1079
1080 void BitcoinGUI::dumpWallet()
1081 {
1082    if(!walletModel)
1083       return;
1084
1085    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1086    if(!ctx.isValid())
1087    {
1088        // Unlock wallet failed or was cancelled
1089        return;
1090    }
1091
1092 #if QT_VERSION < 0x050000
1093     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1094 #else
1095     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1096 #endif
1097     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1098     if(!filename.isEmpty()) {
1099         if(!walletModel->dumpWallet(filename)) {
1100             error(tr("Dump failed"),
1101                          tr("An error happened while trying to save the keys to your location.\n"
1102                             "Keys were not saved.")
1103                       ,CClientUIInterface::MSG_ERROR);
1104         }
1105         else
1106           message(tr("Dump successful"),
1107                        tr("Keys were saved to this file:\n%2")
1108                        .arg(filename)
1109                       ,CClientUIInterface::MSG_INFORMATION);
1110     }
1111 }
1112
1113 void BitcoinGUI::importWallet()
1114 {
1115    if(!walletModel)
1116       return;
1117
1118    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1119    if(!ctx.isValid())
1120    {
1121        // Unlock wallet failed or was cancelled
1122        return;
1123    }
1124
1125 #if QT_VERSION < 0x050000
1126     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1127 #else
1128     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1129 #endif
1130     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1131     if(!filename.isEmpty()) {
1132         if(!walletModel->importWallet(filename)) {
1133             error(tr("Import Failed"),
1134                          tr("An error happened while trying to import the keys.\n"
1135                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1136                          .arg(filename)
1137                       ,CClientUIInterface::MSG_ERROR);
1138         }
1139         else
1140           message(tr("Import Successful"),
1141                        tr("All keys from:\n %1,\n were imported into your wallet.")
1142                        .arg(filename)
1143                       ,CClientUIInterface::MSG_INFORMATION);
1144     }
1145 }
1146
1147
1148 void BitcoinGUI::changePassphrase()
1149 {
1150     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1151     dlg.setModel(walletModel);
1152     dlg.exec();
1153 }
1154
1155 void BitcoinGUI::unlockWallet()
1156 {
1157     if(!walletModel)
1158         return;
1159     // Unlock wallet when requested by wallet model
1160     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1161     {
1162         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1163         dlg.setModel(walletModel);
1164         dlg.exec();
1165     }
1166 }
1167
1168 void BitcoinGUI::lockWallet()
1169 {
1170     if(!walletModel)
1171         return;
1172
1173     walletModel->setWalletLocked(true);
1174 }
1175
1176 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1177 {
1178     // activateWindow() (sometimes) helps with keyboard focus on Windows
1179     if (isHidden())
1180     {
1181         show();
1182         activateWindow();
1183     }
1184     else if (isMinimized())
1185     {
1186         showNormal();
1187         activateWindow();
1188     }
1189     else if (GUIUtil::isObscured(this))
1190     {
1191         raise();
1192         activateWindow();
1193     }
1194     else if(fToggleHidden)
1195         hide();
1196 }
1197
1198 void BitcoinGUI::toggleHidden()
1199 {
1200     showNormalIfMinimized(true);
1201 }