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 extern uint64_t nStakeInputsMapSize;
  74
  75 BitcoinGUI::BitcoinGUI(QWidget *parent):
  76     QMainWindow(parent),
  77     clientModel(0),
  78     walletModel(0),
  79     signVerifyMessageDialog(0),
  80     multisigPage(0),
  81     encryptWalletAction(0),
  82     lockWalletAction(0),
  83     unlockWalletAction(0),
  84     unlockWalletMiningAction(0),
  85     changePassphraseAction(0),
  86     aboutQtAction(0),
  87     trayIcon(0),
  88     notificator(0),
  89     rpcConsole(0),
  90     aboutDialog(0),
  91     optionsDialog(0)
  92 {
  93     resize(850, 550);
  94     setWindowTitle(tr("NovaCoin") + " - " + tr("Wallet"));
  95 #ifndef Q_OS_MAC
  96     qApp->setWindowIcon(QIcon(":icons/bitcoin"));
  97     setWindowIcon(QIcon(":icons/bitcoin"));
  98 #else
  99     setUnifiedTitleAndToolBarOnMac(true);
 100     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
 101 #endif
 102     // Accept D&D of URIs
 103     setAcceptDrops(true);
 104
 105     // Create actions for the toolbar, menu bar and tray/dock icon
 106     createActions();
 107
 108     // Create application menu bar
 109     createMenuBar();
 110
 111     // Create the toolbars
 112     createToolBars();
 113
 114     // Create the tray icon (or setup the dock icon)
 115     createTrayIcon();
 116
 117     // Create tabs
 118     overviewPage = new OverviewPage();
 119
 120     transactionsPage = new QWidget(this);
 121     QVBoxLayout *vbox = new QVBoxLayout();
 122     transactionView = new TransactionView(this);
 123     vbox->addWidget(transactionView);
 124     transactionsPage->setLayout(vbox);
 125
 126     mintingPage = new QWidget(this);
 127     QVBoxLayout *vboxMinting = new QVBoxLayout();
 128     mintingView = new MintingView(this);
 129     vboxMinting->addWidget(mintingView);
 130     mintingPage->setLayout(vboxMinting);
 131
 132     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 133
 134     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 135
 136     sendCoinsPage = new SendCoinsDialog(this);
 137
 138     signVerifyMessageDialog = new SignVerifyMessageDialog(0);
 139
 140     multisigPage = new MultisigDialog(0);
 141
 142     centralWidget = new QStackedWidget(this);
 143     centralWidget->addWidget(overviewPage);
 144     centralWidget->addWidget(transactionsPage);
 145     centralWidget->addWidget(mintingPage);
 146     centralWidget->addWidget(addressBookPage);
 147     centralWidget->addWidget(receiveCoinsPage);
 148     centralWidget->addWidget(sendCoinsPage);
 149     setCentralWidget(centralWidget);
 150
 151     // Create status bar
 152     statusBar();
 153
 154     // Status bar notification icons
 155     QFrame *frameBlocks = new QFrame();
 156     frameBlocks->setContentsMargins(0,0,0,0);
 157     frameBlocks->setMinimumWidth(72);
 158     frameBlocks->setMaximumWidth(72);
 159     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 160     frameBlocksLayout->setContentsMargins(3,0,3,0);
 161     frameBlocksLayout->setSpacing(3);
 162     labelEncryptionIcon = new QLabel();
 163     labelMiningIcon = new QLabel();
 164     labelConnectionsIcon = new QLabel();
 165     labelBlocksIcon = new QLabel();
 166     frameBlocksLayout->addStretch();
 167     frameBlocksLayout->addWidget(labelEncryptionIcon);
 168     frameBlocksLayout->addStretch();
 169     frameBlocksLayout->addWidget(labelMiningIcon);
 170     frameBlocksLayout->addStretch();
 171     frameBlocksLayout->addWidget(labelConnectionsIcon);
 172     frameBlocksLayout->addStretch();
 173     frameBlocksLayout->addWidget(labelBlocksIcon);
 174     frameBlocksLayout->addStretch();
 175
 176     // Progress bar and label for blocks download
 177     progressBarLabel = new QLabel();
 178     progressBarLabel->setVisible(false);
 179     progressBar = new QProgressBar();
 180     progressBar->setAlignment(Qt::AlignCenter);
 181     progressBar->setVisible(false);
 182
 183     // Override style sheet for progress bar for styles that have a segmented progress bar,
 184     // as they make the text unreadable (workaround for issue #1071)
 185     // See https://qt-project.org/doc/qt-4.8/gallery.html
 186     QString curStyle = qApp->style()->metaObject()->className();
 187     if(curStyle == "QWindowsStyle" || curStyle == "QWindowsXPStyle")
 188     {
 189         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; }");
 190     }
 191
 192     statusBar()->addWidget(progressBarLabel);
 193     statusBar()->addWidget(progressBar);
 194     statusBar()->addPermanentWidget(frameBlocks);
 195
 196     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 197
 198     // Clicking on a transaction on the overview page simply sends you to transaction history page
 199     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 200     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
 201
 202     // Double-clicking on a transaction on the transaction history page shows details
 203     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 204
 205     rpcConsole = new RPCConsole(0);
 206     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
 207
 208     aboutDialog = new AboutDialog(0);
 209     optionsDialog = new OptionsDialog(0);
 210
 211     // Clicking on "Verify Message" in the address book sends you to the verify message tab
 212     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
 213     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
 214     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 215
 216     gotoOverviewPage();
 217 }
 218
 219 BitcoinGUI::~BitcoinGUI()
 220 {
 221     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 222         trayIcon->hide();
 223 #ifdef Q_OS_MAC
 224     delete appMenuBar;
 225 #endif
 226
 227     delete rpcConsole;
 228     delete aboutDialog;
 229     delete optionsDialog;
 230     delete multisigPage;
 231     delete signVerifyMessageDialog;
 232 }
 233
 234 void BitcoinGUI::createActions()
 235 {
 236     QActionGroup *tabGroup = new QActionGroup(this);
 237
 238     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 239     overviewAction->setToolTip(tr("Show general overview of wallet"));
 240     overviewAction->setCheckable(true);
 241     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 242     tabGroup->addAction(overviewAction);
 243
 244     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 245     sendCoinsAction->setToolTip(tr("Send coins to a NovaCoin address"));
 246     sendCoinsAction->setCheckable(true);
 247     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 248     tabGroup->addAction(sendCoinsAction);
 249
 250     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 251     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 252     receiveCoinsAction->setCheckable(true);
 253     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 254     tabGroup->addAction(receiveCoinsAction);
 255
 256     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 257     historyAction->setToolTip(tr("Browse transaction history"));
 258     historyAction->setCheckable(true);
 259     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 260     tabGroup->addAction(historyAction);
 261
 262     mintingAction = new QAction(QIcon(":/icons/history"), tr("&Minting"), this);
 263     mintingAction->setToolTip(tr("Show your minting capacity"));
 264     mintingAction->setCheckable(true);
 265     mintingAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 266     tabGroup->addAction(mintingAction);
 267
 268     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 269     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 270     addressBookAction->setCheckable(true);
 271     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_6));
 272     tabGroup->addAction(addressBookAction);
 273
 274     multisigAction = new QAction(QIcon(":/icons/send"), tr("Multisig"), this);
 275     multisigAction->setStatusTip(tr("Open window for working with multisig addresses"));
 276     tabGroup->addAction(multisigAction);
 277
 278     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 279     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 280     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 281     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 282     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 283     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 284     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 285     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 286     connect(mintingAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 287     connect(mintingAction, SIGNAL(triggered()), this, SLOT(gotoMintingPage()));
 288     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 289     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 290     connect(multisigAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 291     connect(multisigAction, SIGNAL(triggered()), this, SLOT(gotoMultisigPage()));
 292
 293     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 294     quitAction->setStatusTip(tr("Quit application"));
 295     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 296     quitAction->setMenuRole(QAction::QuitRole);
 297     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About NovaCoin"), this);
 298     aboutAction->setStatusTip(tr("Show information about NovaCoin"));
 299     aboutAction->setMenuRole(QAction::AboutRole);
 300 #if QT_VERSION < 0x050000
 301     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 302 #else
 303     aboutQtAction = new QAction(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 304 #endif
 305     aboutQtAction->setStatusTip(tr("Show information about Qt"));
 306     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 307     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 308     optionsAction->setStatusTip(tr("Modify configuration options for NovaCoin"));
 309     optionsAction->setMenuRole(QAction::PreferencesRole);
 310     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
 311     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 312     encryptWalletAction->setStatusTip(tr("Encrypt or decrypt wallet"));
 313     encryptWalletAction->setCheckable(true);
 314     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 315     backupWalletAction->setStatusTip(tr("Backup wallet to another location"));
 316     dumpWalletAction = new QAction(QIcon(":/icons/dump"), tr("&Dump Wallet..."), this);
 317     dumpWalletAction->setStatusTip(tr("Dump keys to a text file"));
 318     importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
 319     importWalletAction->setStatusTip(tr("Import keys into a wallet"));
 320     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 321     changePassphraseAction->setStatusTip(tr("Change the passphrase used for wallet encryption"));
 322     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
 323     signMessageAction->setStatusTip(tr("Sign messages with your Novacoin addresses to prove you own them"));
 324     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
 325     verifyMessageAction->setStatusTip(tr("Verify messages to ensure they were signed with specified Novacoin addresses"));
 326
 327     lockWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Lock wallet"), this);
 328     lockWalletAction->setStatusTip(tr("Lock wallet"));
 329     lockWalletAction->setCheckable(true);
 330
 331     unlockWalletAction = new QAction(QIcon(":/icons/lock_open"), tr("Unlo&ck wallet"), this);
 332     unlockWalletAction->setStatusTip(tr("Unlock wallet"));
 333     unlockWalletAction->setCheckable(true);
 334
 335     unlockWalletMiningAction = new QAction(QIcon(":/icons/mining_active"), tr("Unlo&ck wallet for mining"), this);
 336     unlockWalletMiningAction->setStatusTip(tr("Unlock wallet for mining"));
 337     unlockWalletMiningAction->setCheckable(true);
 338
 339     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 340     exportAction->setStatusTip(tr("Export the data in the current tab to a file"));
 341     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 342     openRPCConsoleAction->setStatusTip(tr("Open debugging and diagnostic console"));
 343
 344     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 345     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 346     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 347     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 348     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 349     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 350     connect(lockWalletAction, SIGNAL(triggered(bool)), this, SLOT(lockWallet()));
 351     connect(unlockWalletAction, SIGNAL(triggered(bool)), this, SLOT(unlockWallet()));
 352     connect(unlockWalletMiningAction, SIGNAL(triggered(bool)), this, SLOT(unlockWalletMining(bool)));
 353     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 354     connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
 355     connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 356     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 357     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 358     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 359 }
 360
 361 void BitcoinGUI::createMenuBar()
 362 {
 363 #ifdef Q_OS_MAC
 364     // Create a decoupled menu bar on Mac which stays even if the window is closed
 365     appMenuBar = new QMenuBar();
 366 #else
 367     // Get the main window's menu bar on other platforms
 368     appMenuBar = menuBar();
 369 #endif
 370
 371     // Configure the menus
 372     QMenu *file = appMenuBar->addMenu(tr("&File"));
 373     file->addAction(backupWalletAction);
 374     file->addSeparator();
 375     file->addAction(dumpWalletAction);
 376     file->addAction(importWalletAction);
 377     file->addAction(exportAction);
 378     file->addAction(signMessageAction);
 379     file->addAction(verifyMessageAction);
 380     file->addAction(multisigAction);
 381     file->addSeparator();
 382     file->addAction(quitAction);
 383
 384     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 385     QMenu *securityMenu = settings->addMenu(QIcon(":/icons/key"), tr("&Wallet security"));
 386     securityMenu->addAction(encryptWalletAction);
 387     securityMenu->addAction(changePassphraseAction);
 388     securityMenu->addAction(unlockWalletAction);
 389     securityMenu->addAction(unlockWalletMiningAction);
 390     securityMenu->addAction(lockWalletAction);
 391     settings->addAction(optionsAction);
 392
 393     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 394     help->addAction(openRPCConsoleAction);
 395     help->addSeparator();
 396     help->addAction(aboutAction);
 397     help->addAction(aboutQtAction);
 398 }
 399
 400 void BitcoinGUI::createToolBars()
 401 {
 402     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 403     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 404     toolbar->addAction(overviewAction);
 405     toolbar->addAction(sendCoinsAction);
 406     toolbar->addAction(receiveCoinsAction);
 407     toolbar->addAction(historyAction);
 408     toolbar->addAction(mintingAction);
 409     toolbar->addAction(addressBookAction);
 410
 411     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 412     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 413     toolbar2->addAction(exportAction);
 414     toolbar2->setVisible(false);
 415
 416 }
 417
 418 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 419 {
 420     this->clientModel = clientModel;
 421     if(clientModel)
 422     {
 423         // Replace some strings and icons, when using the testnet
 424         if(clientModel->isTestNet())
 425         {
 426             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 427 #ifndef Q_OS_MAC
 428             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 429             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 430 #else
 431             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 432 #endif
 433             if(trayIcon)
 434             {
 435                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 436                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 437                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 438             }
 439
 440             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 441         }
 442
 443         // Keep up to date with client
 444         setNumConnections(clientModel->getNumConnections());
 445         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 446
 447         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 448         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 449
 450         QTimer *timer = new QTimer(this);
 451         connect(timer, SIGNAL(timeout()), this, SLOT(updateMining()));
 452         timer->start(10*1000); //10 seconds
 453
 454         // Report errors from network/worker thread
 455         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 456
 457         rpcConsole->setClientModel(clientModel);
 458         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 459         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 460     }
 461 }
 462
 463 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 464 {
 465     this->walletModel = walletModel;
 466     if(walletModel)
 467     {
 468         // Report errors from wallet thread
 469         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 470
 471         // Put transaction list in tabs
 472         transactionView->setModel(walletModel);
 473         mintingView->setModel(walletModel);
 474
 475         overviewPage->setModel(walletModel);
 476         addressBookPage->setModel(walletModel->getAddressTableModel());
 477         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 478         sendCoinsPage->setModel(walletModel);
 479         signVerifyMessageDialog->setModel(walletModel);
 480         multisigPage->setModel(walletModel);
 481
 482         setEncryptionStatus(walletModel->getEncryptionStatus());
 483         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 484         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 485
 486         // Balloon pop-up for new transaction
 487         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 488                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 489
 490         // Ask for passphrase if needed
 491         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 492     }
 493 }
 494
 495 void BitcoinGUI::createTrayIcon()
 496 {
 497     QMenu *trayIconMenu;
 498 #ifndef Q_OS_MAC
 499     trayIcon = new QSystemTrayIcon(this);
 500     trayIconMenu = new QMenu(this);
 501     trayIcon->setContextMenu(trayIconMenu);
 502     trayIcon->setToolTip(tr("NovaCoin client"));
 503     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 504     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 505             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 506     trayIcon->show();
 507 #else
 508     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 509     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 510     dockIconHandler->setMainWindow((QMainWindow *)this);
 511     trayIconMenu = dockIconHandler->dockMenu();
 512 #endif
 513
 514     // Configuration of the tray icon (or dock icon) icon menu
 515     trayIconMenu->addAction(toggleHideAction);
 516     trayIconMenu->addSeparator();
 517     trayIconMenu->addAction(sendCoinsAction);
 518     trayIconMenu->addAction(multisigAction);
 519     trayIconMenu->addAction(receiveCoinsAction);
 520     trayIconMenu->addSeparator();
 521     trayIconMenu->addAction(signMessageAction);
 522     trayIconMenu->addAction(verifyMessageAction);
 523     trayIconMenu->addSeparator();
 524     trayIconMenu->addAction(optionsAction);
 525     trayIconMenu->addAction(openRPCConsoleAction);
 526 #ifndef Q_OS_MAC
 527     // This is built-in on Mac
 528     trayIconMenu->addSeparator();
 529     trayIconMenu->addAction(quitAction);
 530 #endif
 531     notificator = new Notificator(QApplication::applicationName(), trayIcon, this);
 532 }
 533
 534 #ifndef Q_OS_MAC
 535 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 536 {
 537     if(reason == QSystemTrayIcon::Trigger)
 538     {
 539         // Click on system tray icon triggers show/hide of the main window
 540         toggleHideAction->trigger();
 541     }
 542 }
 543 #endif
 544
 545 void BitcoinGUI::optionsClicked()
 546 {
 547     if(!clientModel || !clientModel->getOptionsModel())
 548         return;
 549
 550     optionsDialog->setModel(clientModel->getOptionsModel());
 551     optionsDialog->setWindowModality(Qt::ApplicationModal);
 552     optionsDialog->show();
 553 }
 554
 555 void BitcoinGUI::aboutClicked()
 556 {
 557     aboutDialog->setModel(clientModel);
 558     aboutDialog->setWindowModality(Qt::ApplicationModal);
 559     aboutDialog->show();
 560 }
 561
 562 void BitcoinGUI::setNumConnections(int count)
 563 {
 564     QString icon;
 565     switch(count)
 566     {
 567     case 0: icon = ":/icons/connect_0"; break;
 568     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 569     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 570     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 571     default: icon = ":/icons/connect_4"; break;
 572     }
 573     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 574     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 575 }
 576
 577 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 578 {
 579     // don't show / hide progress bar and its label if we have no connection to the network
 580     if (!clientModel || clientModel->getNumConnections() == 0)
 581     {
 582         progressBarLabel->setVisible(false);
 583         progressBar->setVisible(false);
 584
 585         return;
 586     }
 587
 588     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 589     QString tooltip;
 590
 591     if(count < nTotalBlocks)
 592     {
 593         int nRemainingBlocks = nTotalBlocks - count;
 594         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 595
 596         if (strStatusBarWarnings.isEmpty())
 597         {
 598             progressBarLabel->setText(tr("Synchronizing with network..."));
 599             progressBarLabel->setVisible(true);
 600             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 601             progressBar->setMaximum(nTotalBlocks);
 602             progressBar->setValue(count);
 603             progressBar->setVisible(true);
 604         }
 605
 606         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 607     }
 608     else
 609     {
 610         if (strStatusBarWarnings.isEmpty())
 611             progressBarLabel->setVisible(false);
 612
 613         progressBar->setVisible(false);
 614         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 615     }
 616
 617     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 618     if (!strStatusBarWarnings.isEmpty())
 619     {
 620         progressBarLabel->setText(strStatusBarWarnings);
 621         progressBarLabel->setVisible(true);
 622         progressBar->setVisible(false);
 623     }
 624
 625     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 626     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 627     QString text;
 628
 629     // Represent time from last generated block in human readable text
 630     if(secs <= 0)
 631     {
 632         // Fully up to date. Leave text empty.
 633     }
 634     else if(secs < 60)
 635     {
 636         text = tr("%n second(s) ago","",secs);
 637     }
 638     else if(secs < 60*60)
 639     {
 640         text = tr("%n minute(s) ago","",secs/60);
 641     }
 642     else if(secs < 24*60*60)
 643     {
 644         text = tr("%n hour(s) ago","",secs/(60*60));
 645     }
 646     else
 647     {
 648         text = tr("%n day(s) ago","",secs/(60*60*24));
 649     }
 650
 651     // Set icon state: spinning if catching up, tick otherwise
 652     if(secs < 90*60 && count >= nTotalBlocks)
 653     {
 654         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 655         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 656
 657         overviewPage->showOutOfSyncWarning(false);
 658     }
 659     else
 660     {
 661         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 662         labelBlocksIcon->setMovie(syncIconMovie);
 663         syncIconMovie->start();
 664
 665         overviewPage->showOutOfSyncWarning(true);
 666     }
 667
 668     if(!text.isEmpty())
 669     {
 670         tooltip += QString("<br>");
 671         tooltip += tr("Last received block was generated %1.").arg(text);
 672     }
 673
 674     // Don't word-wrap this (fixed-width) tooltip
 675     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 676
 677     labelBlocksIcon->setToolTip(tooltip);
 678     progressBarLabel->setToolTip(tooltip);
 679     progressBar->setToolTip(tooltip);
 680 }
 681
 682 void BitcoinGUI::updateMining()
 683 {
 684    if(!walletModel)
 685       return;
 686
 687     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 688
 689     if (!clientModel->getNumConnections())
 690     {
 691         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 692         return;
 693     }
 694
 695     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 696     {
 697         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 698         return;
 699     }
 700
 701     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 702     {
 703         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 704         return;
 705     }
 706
 707     if (nStakeInputsMapSize > 0)
 708     {
 709         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 710
 711         uint64_t nNetworkWeight = clientModel->getPoSKernelPS();
 712
 713         labelMiningIcon->setToolTip(QString("<nobr>")+tr("Stake miner is active<br>%1 inputs being used for mining<br>Network weight is %3").arg(nStakeInputsMapSize).arg(nNetworkWeight)+QString("<\nobr>"));
 714     }
 715     else
 716         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 717 }
 718
 719 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 720 {
 721     QString strTitle = tr("NovaCoin") + " - ";
 722     // Default to information icon
 723     int nMBoxIcon = QMessageBox::Information;
 724     int nNotifyIcon = Notificator::Information;
 725
 726
 727     // Check for usage of predefined title
 728     switch (style) {
 729     case CClientUIInterface::MSG_ERROR:
 730         strTitle += tr("Error");
 731         break;
 732     case CClientUIInterface::MSG_WARNING:
 733         strTitle += tr("Warning");
 734         break;
 735     case CClientUIInterface::MSG_INFORMATION:
 736         strTitle += tr("Information");
 737         break;
 738     default:
 739         strTitle += title; // Use supplied title
 740     }
 741
 742     // Check for error/warning icon
 743     if (style & CClientUIInterface::ICON_ERROR) {
 744         nMBoxIcon = QMessageBox::Critical;
 745         nNotifyIcon = Notificator::Critical;
 746     }
 747     else if (style & CClientUIInterface::ICON_WARNING) {
 748         nMBoxIcon = QMessageBox::Warning;
 749         nNotifyIcon = Notificator::Warning;
 750     }
 751
 752     // Display message
 753     if (style & CClientUIInterface::MODAL) {
 754         // Check for buttons, use OK as default, if none was supplied
 755         QMessageBox::StandardButton buttons;
 756         buttons = QMessageBox::Ok;
 757
 758         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 759
 760         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 761
 762         mBox.exec();
 763     }
 764     else
 765         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 766 }
 767
 768
 769 void BitcoinGUI::changeEvent(QEvent *e)
 770 {
 771     QMainWindow::changeEvent(e);
 772 #ifndef Q_OS_MAC // Ignored on Mac
 773     if(e->type() == QEvent::WindowStateChange)
 774     {
 775         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 776         {
 777             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 778             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 779             {
 780                 QTimer::singleShot(0, this, SLOT(hide()));
 781                 e->ignore();
 782             }
 783         }
 784     }
 785 #endif
 786 }
 787
 788 void BitcoinGUI::closeEvent(QCloseEvent *event)
 789 {
 790     if(clientModel)
 791     {
 792 #ifndef Q_OS_MAC // Ignored on Mac
 793         if(!clientModel->getOptionsModel()->getMinimizeOnClose())
 794         {
 795             qApp->quit();
 796         }
 797 #endif
 798     }
 799     // close rpcConsole in case it was open to make some space for the shutdown window
 800     rpcConsole->close();
 801
 802     QMainWindow::closeEvent(event);
 803 }
 804
 805 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 806 {
 807     QString strMessage =
 808         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 809           "which goes to the nodes that process your transaction and helps to support the network.  "
 810           "Do you want to pay the fee?").arg(
 811                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 812     QMessageBox::StandardButton retval = QMessageBox::question(
 813           this, tr("Confirm transaction fee"), strMessage,
 814           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 815     *payFee = (retval == QMessageBox::Yes);
 816 }
 817
 818 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 819 {
 820     if(!walletModel || !clientModel)
 821         return;
 822     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 823     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 824                     .data(Qt::EditRole).toULongLong();
 825     if(!clientModel->inInitialBlockDownload())
 826     {
 827         // On new transaction, make an info balloon
 828         // Unless the initial block download is in progress, to prevent balloon-spam
 829         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 830                         .data().toString();
 831         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 832                         .data().toString();
 833         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 834                         .data().toString();
 835         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 836                             TransactionTableModel::ToAddress, parent)
 837                         .data(Qt::DecorationRole));
 838
 839         notificator->notify(Notificator::Information,
 840                             (amount)<0 ? tr("Sent transaction") :
 841                                          tr("Incoming transaction"),
 842                               tr("Date: %1\n"
 843                                  "Amount: %2\n"
 844                                  "Type: %3\n"
 845                                  "Address: %4\n")
 846                               .arg(date)
 847                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 848                               .arg(type)
 849                               .arg(address), icon);
 850     }
 851 }
 852
 853 void BitcoinGUI::gotoOverviewPage()
 854 {
 855     overviewAction->setChecked(true);
 856     centralWidget->setCurrentWidget(overviewPage);
 857
 858     exportAction->setEnabled(false);
 859     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 860 }
 861
 862 void BitcoinGUI::gotoHistoryPage()
 863 {
 864     historyAction->setChecked(true);
 865     centralWidget->setCurrentWidget(transactionsPage);
 866
 867     exportAction->setEnabled(true);
 868     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 869     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 870 }
 871
 872 void BitcoinGUI::gotoMintingPage()
 873 {
 874     mintingAction->setChecked(true);
 875     centralWidget->setCurrentWidget(mintingPage);
 876
 877     exportAction->setEnabled(true);
 878     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 879     connect(exportAction, SIGNAL(triggered()), mintingView, SLOT(exportClicked()));
 880 }
 881
 882
 883 void BitcoinGUI::gotoAddressBookPage()
 884 {
 885     addressBookAction->setChecked(true);
 886     centralWidget->setCurrentWidget(addressBookPage);
 887
 888     exportAction->setEnabled(true);
 889     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 890     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 891 }
 892
 893 void BitcoinGUI::gotoReceiveCoinsPage()
 894 {
 895     receiveCoinsAction->setChecked(true);
 896     centralWidget->setCurrentWidget(receiveCoinsPage);
 897
 898     exportAction->setEnabled(true);
 899     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 900     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 901 }
 902
 903 void BitcoinGUI::gotoSendCoinsPage()
 904 {
 905     sendCoinsAction->setChecked(true);
 906     centralWidget->setCurrentWidget(sendCoinsPage);
 907
 908     exportAction->setEnabled(false);
 909     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 910 }
 911
 912 void BitcoinGUI::gotoSignMessageTab(QString addr)
 913 {
 914     // call show() in showTab_SM()
 915     signVerifyMessageDialog->showTab_SM(true);
 916
 917     if(!addr.isEmpty())
 918         signVerifyMessageDialog->setAddress_SM(addr);
 919 }
 920
 921 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 922 {
 923     // call show() in showTab_VM()
 924     signVerifyMessageDialog->showTab_VM(true);
 925
 926     if(!addr.isEmpty())
 927         signVerifyMessageDialog->setAddress_VM(addr);
 928 }
 929
 930 void BitcoinGUI::gotoMultisigPage()
 931 {
 932     multisigPage->show();
 933     multisigPage->setFocus();
 934 }
 935
 936 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 937 {
 938     // Accept only URIs
 939     if(event->mimeData()->hasUrls())
 940         event->acceptProposedAction();
 941 }
 942
 943 void BitcoinGUI::dropEvent(QDropEvent *event)
 944 {
 945     if(event->mimeData()->hasUrls())
 946     {
 947         int nValidUrisFound = 0;
 948         QList<QUrl> uris = event->mimeData()->urls();
 949         foreach(const QUrl &uri, uris)
 950         {
 951             if (sendCoinsPage->handleURI(uri.toString()))
 952                 nValidUrisFound++;
 953         }
 954
 955         // if valid URIs were found
 956         if (nValidUrisFound)
 957             gotoSendCoinsPage();
 958         else
 959             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."));
 960     }
 961
 962     event->acceptProposedAction();
 963 }
 964
 965 void BitcoinGUI::handleURI(QString strURI)
 966 {
 967     // URI has to be valid
 968     if (sendCoinsPage->handleURI(strURI))
 969     {
 970         showNormalIfMinimized();
 971         gotoSendCoinsPage();
 972     }
 973     else
 974         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."));
 975 }
 976
 977 void BitcoinGUI::setEncryptionStatus(int status)
 978 {
 979     switch(status)
 980     {
 981     case WalletModel::Unencrypted:
 982         labelEncryptionIcon->hide();
 983         encryptWalletAction->setChecked(false);
 984         changePassphraseAction->setEnabled(false);
 985         lockWalletAction->setEnabled(false);
 986         unlockWalletAction->setEnabled(false);
 987         unlockWalletMiningAction->setEnabled(false);
 988         encryptWalletAction->setEnabled(true);
 989         break;
 990     case WalletModel::Unlocked:
 991         labelEncryptionIcon->show();
 992         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 993         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 994         encryptWalletAction->setChecked(true);
 995         changePassphraseAction->setEnabled(true);
 996         encryptWalletAction->setEnabled(true);
 997
 998         lockWalletAction->setEnabled(true);
 999         lockWalletAction->setChecked(false);
1000         unlockWalletAction->setEnabled(false);
1001         unlockWalletMiningAction->setEnabled(false);
1002
1003         if (fWalletUnlockMintOnly)
1004             unlockWalletMiningAction->setChecked(true);
1005         else
1006             unlockWalletAction->setChecked(true);
1007
1008         break;
1009     case WalletModel::Locked:
1010         labelEncryptionIcon->show();
1011         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1012         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1013         encryptWalletAction->setChecked(true);
1014         changePassphraseAction->setEnabled(true);
1015         encryptWalletAction->setEnabled(true);
1016
1017         lockWalletAction->setChecked(true);
1018         unlockWalletAction->setChecked(false);
1019         unlockWalletMiningAction->setChecked(false);
1020
1021         lockWalletAction->setEnabled(false);
1022         unlockWalletAction->setEnabled(true);
1023         unlockWalletMiningAction->setEnabled(true);
1024         break;
1025     }
1026 }
1027
1028 void BitcoinGUI::encryptWallet(bool status)
1029 {
1030     if(!walletModel)
1031         return;
1032     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
1033                                      AskPassphraseDialog::Decrypt, this);
1034     dlg.setModel(walletModel);
1035     dlg.exec();
1036
1037     setEncryptionStatus(walletModel->getEncryptionStatus());
1038 }
1039
1040 void BitcoinGUI::unlockWalletMining(bool status)
1041 {
1042     if(!walletModel)
1043         return;
1044
1045     // Unlock wallet when requested by wallet model
1046     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1047     {
1048         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1049         dlg.setModel(walletModel);
1050         dlg.exec();
1051     }
1052 }
1053
1054 void BitcoinGUI::backupWallet()
1055 {
1056 #if QT_VERSION < 0x050000
1057     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1058 #else
1059     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1060 #endif
1061     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1062     if(!filename.isEmpty()) {
1063         if(!walletModel->backupWallet(filename)) {
1064             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1065         }
1066     }
1067 }
1068
1069 void BitcoinGUI::dumpWallet()
1070 {
1071    if(!walletModel)
1072       return;
1073
1074    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1075    if(!ctx.isValid())
1076    {
1077        // Unlock wallet failed or was cancelled
1078        return;
1079    }
1080
1081 #if QT_VERSION < 0x050000
1082     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1083 #else
1084     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1085 #endif
1086     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1087     if(!filename.isEmpty()) {
1088         if(!walletModel->dumpWallet(filename)) {
1089             message(tr("Dump failed"),
1090                          tr("An error happened while trying to save the keys to your location.\n"
1091                             "Keys were not saved.")
1092                       ,CClientUIInterface::MSG_ERROR);
1093         }
1094         else
1095           message(tr("Dump successful"),
1096                        tr("Keys were saved to this file:\n%2")
1097                        .arg(filename)
1098                       ,CClientUIInterface::MSG_INFORMATION);
1099     }
1100 }
1101
1102 void BitcoinGUI::importWallet()
1103 {
1104    if(!walletModel)
1105       return;
1106
1107    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1108    if(!ctx.isValid())
1109    {
1110        // Unlock wallet failed or was cancelled
1111        return;
1112    }
1113
1114 #if QT_VERSION < 0x050000
1115     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1116 #else
1117     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1118 #endif
1119     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1120     if(!filename.isEmpty()) {
1121         if(!walletModel->importWallet(filename)) {
1122             message(tr("Import Failed"),
1123                          tr("An error happened while trying to import the keys.\n"
1124                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1125                          .arg(filename)
1126                       ,CClientUIInterface::MSG_ERROR);
1127         }
1128         else
1129           message(tr("Import Successful"),
1130                        tr("All keys from:\n %1,\n were imported into your wallet.")
1131                        .arg(filename)
1132                       ,CClientUIInterface::MSG_INFORMATION);
1133     }
1134 }
1135
1136
1137 void BitcoinGUI::changePassphrase()
1138 {
1139     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1140     dlg.setModel(walletModel);
1141     dlg.exec();
1142 }
1143
1144 void BitcoinGUI::unlockWallet()
1145 {
1146     if(!walletModel)
1147         return;
1148     // Unlock wallet when requested by wallet model
1149     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1150     {
1151         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1152         dlg.setModel(walletModel);
1153         dlg.exec();
1154     }
1155 }
1156
1157 void BitcoinGUI::lockWallet()
1158 {
1159     if(!walletModel)
1160         return;
1161
1162     walletModel->setWalletLocked(true);
1163 }
1164
1165 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1166 {
1167     // activateWindow() (sometimes) helps with keyboard focus on Windows
1168     if (isHidden())
1169     {
1170         // Make sure the window is not minimized
1171         setWindowState(windowState() & (~Qt::WindowMinimized | Qt::WindowActive));
1172         // Then show it
1173         show();
1174         raise();
1175         activateWindow();
1176     }
1177     else if (isMinimized())
1178     {
1179         showNormal();
1180         raise();
1181         activateWindow();
1182     }
1183     else if (GUIUtil::isObscured(this))
1184     {
1185         raise();
1186         activateWindow();
1187         if(fToggleHidden)
1188         {
1189             Sleep(1);
1190             if (GUIUtil::isObscured(this))
1191                 hide();
1192         }
1193     }
1194     else if(fToggleHidden)
1195         hide();
1196 }
1197
1198 void BitcoinGUI::toggleHidden()
1199 {
1200     showNormalIfMinimized(true);
1201 }
1202
1203 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
1204 {
1205     // Report errors from network/worker thread
1206     if(modal)
1207     {
1208         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
1209     } else {
1210         notificator->notify(Notificator::Critical, title, message);
1211     }
1212 }