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     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(raise()));
 208
 209     aboutDialog = new AboutDialog(0);
 210     optionsDialog = new OptionsDialog(0);
 211
 212     // Clicking on "Verify Message" in the address book sends you to the verify message tab
 213     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
 214     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
 215     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 216
 217     gotoOverviewPage();
 218 }
 219
 220 BitcoinGUI::~BitcoinGUI()
 221 {
 222     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 223         trayIcon->hide();
 224 #ifdef Q_OS_MAC
 225     delete appMenuBar;
 226 #endif
 227
 228     delete rpcConsole;
 229     delete aboutDialog;
 230     delete optionsDialog;
 231     delete multisigPage;
 232     delete signVerifyMessageDialog;
 233 }
 234
 235 void BitcoinGUI::createActions()
 236 {
 237     QActionGroup *tabGroup = new QActionGroup(this);
 238
 239     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 240     overviewAction->setToolTip(tr("Show general overview of wallet"));
 241     overviewAction->setCheckable(true);
 242     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 243     tabGroup->addAction(overviewAction);
 244
 245     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 246     sendCoinsAction->setToolTip(tr("Send coins to a NovaCoin address"));
 247     sendCoinsAction->setCheckable(true);
 248     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 249     tabGroup->addAction(sendCoinsAction);
 250
 251     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 252     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 253     receiveCoinsAction->setCheckable(true);
 254     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 255     tabGroup->addAction(receiveCoinsAction);
 256
 257     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 258     historyAction->setToolTip(tr("Browse transaction history"));
 259     historyAction->setCheckable(true);
 260     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 261     tabGroup->addAction(historyAction);
 262
 263     mintingAction = new QAction(QIcon(":/icons/history"), tr("&Minting"), this);
 264     mintingAction->setToolTip(tr("Show your minting capacity"));
 265     mintingAction->setCheckable(true);
 266     mintingAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 267     tabGroup->addAction(mintingAction);
 268
 269     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 270     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 271     addressBookAction->setCheckable(true);
 272     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_6));
 273     tabGroup->addAction(addressBookAction);
 274
 275     multisigAction = new QAction(QIcon(":/icons/send"), tr("Multisig"), this);
 276     multisigAction->setStatusTip(tr("Open window for working with multisig addresses"));
 277     tabGroup->addAction(multisigAction);
 278
 279     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 280     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 281     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 282     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 283     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 284     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 285     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 286     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 287     connect(mintingAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 288     connect(mintingAction, SIGNAL(triggered()), this, SLOT(gotoMintingPage()));
 289     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 290     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 291     connect(multisigAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 292     connect(multisigAction, SIGNAL(triggered()), this, SLOT(gotoMultisigPage()));
 293
 294     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 295     quitAction->setStatusTip(tr("Quit application"));
 296     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 297     quitAction->setMenuRole(QAction::QuitRole);
 298     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About NovaCoin"), this);
 299     aboutAction->setStatusTip(tr("Show information about NovaCoin"));
 300     aboutAction->setMenuRole(QAction::AboutRole);
 301 #if QT_VERSION < 0x050000
 302     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 303 #else
 304     aboutQtAction = new QAction(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 305 #endif
 306     aboutQtAction->setStatusTip(tr("Show information about Qt"));
 307     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 308     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 309     optionsAction->setStatusTip(tr("Modify configuration options for NovaCoin"));
 310     optionsAction->setMenuRole(QAction::PreferencesRole);
 311     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
 312     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 313     encryptWalletAction->setStatusTip(tr("Encrypt or decrypt wallet"));
 314     encryptWalletAction->setCheckable(true);
 315     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 316     backupWalletAction->setStatusTip(tr("Backup wallet to another location"));
 317     dumpWalletAction = new QAction(QIcon(":/icons/dump"), tr("&Dump Wallet..."), this);
 318     dumpWalletAction->setStatusTip(tr("Dump keys to a text file"));
 319     importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
 320     importWalletAction->setStatusTip(tr("Import keys into a wallet"));
 321     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 322     changePassphraseAction->setStatusTip(tr("Change the passphrase used for wallet encryption"));
 323     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
 324     signMessageAction->setStatusTip(tr("Sign messages with your Novacoin addresses to prove you own them"));
 325     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
 326     verifyMessageAction->setStatusTip(tr("Verify messages to ensure they were signed with specified Novacoin addresses"));
 327
 328     lockWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Lock wallet"), this);
 329     lockWalletAction->setStatusTip(tr("Lock wallet"));
 330     lockWalletAction->setCheckable(true);
 331
 332     unlockWalletAction = new QAction(QIcon(":/icons/lock_open"), tr("Unlo&ck wallet"), this);
 333     unlockWalletAction->setStatusTip(tr("Unlock wallet"));
 334     unlockWalletAction->setCheckable(true);
 335
 336     unlockWalletMiningAction = new QAction(QIcon(":/icons/mining_active"), tr("Unlo&ck wallet for mining"), this);
 337     unlockWalletMiningAction->setStatusTip(tr("Unlock wallet for mining"));
 338     unlockWalletMiningAction->setCheckable(true);
 339
 340     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 341     exportAction->setStatusTip(tr("Export the data in the current tab to a file"));
 342     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 343     openRPCConsoleAction->setStatusTip(tr("Open debugging and diagnostic console"));
 344
 345     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 346     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 347     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 348     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 349     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 350     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 351     connect(lockWalletAction, SIGNAL(triggered(bool)), this, SLOT(lockWallet()));
 352     connect(unlockWalletAction, SIGNAL(triggered(bool)), this, SLOT(unlockWallet()));
 353     connect(unlockWalletMiningAction, SIGNAL(triggered(bool)), this, SLOT(unlockWalletMining(bool)));
 354     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 355     connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
 356     connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 357     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 358     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 359     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 360 }
 361
 362 void BitcoinGUI::createMenuBar()
 363 {
 364 #ifdef Q_OS_MAC
 365     // Create a decoupled menu bar on Mac which stays even if the window is closed
 366     appMenuBar = new QMenuBar();
 367 #else
 368     // Get the main window's menu bar on other platforms
 369     appMenuBar = menuBar();
 370 #endif
 371
 372     // Configure the menus
 373     QMenu *file = appMenuBar->addMenu(tr("&File"));
 374     file->addAction(backupWalletAction);
 375     file->addSeparator();
 376     file->addAction(dumpWalletAction);
 377     file->addAction(importWalletAction);
 378     file->addAction(exportAction);
 379     file->addAction(signMessageAction);
 380     file->addAction(verifyMessageAction);
 381     file->addAction(multisigAction);
 382     file->addSeparator();
 383     file->addAction(quitAction);
 384
 385     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 386     QMenu *securityMenu = settings->addMenu(QIcon(":/icons/key"), tr("&Wallet security"));
 387     securityMenu->addAction(encryptWalletAction);
 388     securityMenu->addAction(changePassphraseAction);
 389     securityMenu->addAction(unlockWalletAction);
 390     securityMenu->addAction(unlockWalletMiningAction);
 391     securityMenu->addAction(lockWalletAction);
 392     settings->addAction(optionsAction);
 393
 394     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 395     help->addAction(openRPCConsoleAction);
 396     help->addSeparator();
 397     help->addAction(aboutAction);
 398     help->addAction(aboutQtAction);
 399 }
 400
 401 void BitcoinGUI::createToolBars()
 402 {
 403     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 404     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 405     toolbar->addAction(overviewAction);
 406     toolbar->addAction(sendCoinsAction);
 407     toolbar->addAction(receiveCoinsAction);
 408     toolbar->addAction(historyAction);
 409     toolbar->addAction(mintingAction);
 410     toolbar->addAction(addressBookAction);
 411
 412     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 413     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 414     toolbar2->addAction(exportAction);
 415     toolbar2->setVisible(false);
 416
 417 }
 418
 419 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 420 {
 421     this->clientModel = clientModel;
 422     if(clientModel)
 423     {
 424         // Replace some strings and icons, when using the testnet
 425         if(clientModel->isTestNet())
 426         {
 427             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 428 #ifndef Q_OS_MAC
 429             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 430             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 431 #else
 432             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 433 #endif
 434             if(trayIcon)
 435             {
 436                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 437                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 438                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 439             }
 440
 441             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 442         }
 443
 444         // Keep up to date with client
 445         setNumConnections(clientModel->getNumConnections());
 446         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 447
 448         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 449         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 450
 451         QTimer *timer = new QTimer(this);
 452         connect(timer, SIGNAL(timeout()), this, SLOT(updateMining()));
 453         timer->start(10*1000); //10 seconds
 454
 455         // Report errors from network/worker thread
 456         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 457
 458         rpcConsole->setClientModel(clientModel);
 459         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 460         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 461     }
 462 }
 463
 464 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 465 {
 466     this->walletModel = walletModel;
 467     if(walletModel)
 468     {
 469         // Report errors from wallet thread
 470         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 471
 472         // Put transaction list in tabs
 473         transactionView->setModel(walletModel);
 474         mintingView->setModel(walletModel);
 475
 476         overviewPage->setModel(walletModel);
 477         addressBookPage->setModel(walletModel->getAddressTableModel());
 478         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 479         sendCoinsPage->setModel(walletModel);
 480         signVerifyMessageDialog->setModel(walletModel);
 481         multisigPage->setModel(walletModel);
 482
 483         setEncryptionStatus(walletModel->getEncryptionStatus());
 484         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 485         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 486
 487         // Balloon pop-up for new transaction
 488         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 489                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 490
 491         // Ask for passphrase if needed
 492         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 493     }
 494 }
 495
 496 void BitcoinGUI::createTrayIcon()
 497 {
 498     QMenu *trayIconMenu;
 499 #ifndef Q_OS_MAC
 500     trayIcon = new QSystemTrayIcon(this);
 501     trayIconMenu = new QMenu(this);
 502     trayIcon->setContextMenu(trayIconMenu);
 503     trayIcon->setToolTip(tr("NovaCoin client"));
 504     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 505     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 506             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 507     trayIcon->show();
 508 #else
 509     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 510     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 511     dockIconHandler->setMainWindow((QMainWindow *)this);
 512     trayIconMenu = dockIconHandler->dockMenu();
 513 #endif
 514
 515     // Configuration of the tray icon (or dock icon) icon menu
 516     trayIconMenu->addAction(toggleHideAction);
 517     trayIconMenu->addSeparator();
 518     trayIconMenu->addAction(sendCoinsAction);
 519     trayIconMenu->addAction(multisigAction);
 520     trayIconMenu->addAction(receiveCoinsAction);
 521     trayIconMenu->addSeparator();
 522     trayIconMenu->addAction(signMessageAction);
 523     trayIconMenu->addAction(verifyMessageAction);
 524     trayIconMenu->addSeparator();
 525     trayIconMenu->addAction(optionsAction);
 526     trayIconMenu->addAction(openRPCConsoleAction);
 527 #ifndef Q_OS_MAC
 528     // This is built-in on Mac
 529     trayIconMenu->addSeparator();
 530     trayIconMenu->addAction(quitAction);
 531 #endif
 532     notificator = new Notificator(QApplication::applicationName(), trayIcon, this);
 533 }
 534
 535 #ifndef Q_OS_MAC
 536 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 537 {
 538     if(reason == QSystemTrayIcon::Trigger)
 539     {
 540         // Click on system tray icon triggers show/hide of the main window
 541         toggleHideAction->trigger();
 542     }
 543 }
 544 #endif
 545
 546 void BitcoinGUI::optionsClicked()
 547 {
 548     if(!clientModel || !clientModel->getOptionsModel())
 549         return;
 550
 551     optionsDialog->setModel(clientModel->getOptionsModel());
 552     optionsDialog->setWindowModality(Qt::ApplicationModal);
 553     optionsDialog->show();
 554 }
 555
 556 void BitcoinGUI::aboutClicked()
 557 {
 558     aboutDialog->setModel(clientModel);
 559     aboutDialog->setWindowModality(Qt::ApplicationModal);
 560     aboutDialog->show();
 561 }
 562
 563 void BitcoinGUI::setNumConnections(int count)
 564 {
 565     QString icon;
 566     switch(count)
 567     {
 568     case 0: icon = ":/icons/connect_0"; break;
 569     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 570     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 571     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 572     default: icon = ":/icons/connect_4"; break;
 573     }
 574     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 575     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 576 }
 577
 578 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 579 {
 580     // don't show / hide progress bar and its label if we have no connection to the network
 581     if (!clientModel || clientModel->getNumConnections() == 0)
 582     {
 583         progressBarLabel->setVisible(false);
 584         progressBar->setVisible(false);
 585
 586         return;
 587     }
 588
 589     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 590     QString tooltip;
 591
 592     if(count < nTotalBlocks)
 593     {
 594         int nRemainingBlocks = nTotalBlocks - count;
 595         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 596
 597         if (strStatusBarWarnings.isEmpty())
 598         {
 599             progressBarLabel->setText(tr("Synchronizing with network..."));
 600             progressBarLabel->setVisible(true);
 601             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 602             progressBar->setMaximum(nTotalBlocks);
 603             progressBar->setValue(count);
 604             progressBar->setVisible(true);
 605         }
 606
 607         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 608     }
 609     else
 610     {
 611         if (strStatusBarWarnings.isEmpty())
 612             progressBarLabel->setVisible(false);
 613
 614         progressBar->setVisible(false);
 615         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 616     }
 617
 618     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 619     if (!strStatusBarWarnings.isEmpty())
 620     {
 621         progressBarLabel->setText(strStatusBarWarnings);
 622         progressBarLabel->setVisible(true);
 623         progressBar->setVisible(false);
 624     }
 625
 626     tooltip = tr("Current PoW difficulty is %1.").arg(clientModel->getDifficulty(false)) + QString("<br>") + tooltip;
 627     tooltip = tr("Current PoS difficulty is %1.").arg(clientModel->getDifficulty(true)) + QString("<br>") + tooltip;
 628
 629     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 630     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 631     QString text;
 632
 633     // Represent time from last generated block in human readable text
 634     if(secs <= 0)
 635     {
 636         // Fully up to date. Leave text empty.
 637     }
 638     else if(secs < 60)
 639     {
 640         text = tr("%n second(s) ago","",secs);
 641     }
 642     else if(secs < 60*60)
 643     {
 644         text = tr("%n minute(s) ago","",secs/60);
 645     }
 646     else if(secs < 24*60*60)
 647     {
 648         text = tr("%n hour(s) ago","",secs/(60*60));
 649     }
 650     else
 651     {
 652         text = tr("%n day(s) ago","",secs/(60*60*24));
 653     }
 654
 655     // Set icon state: spinning if catching up, tick otherwise
 656     if(secs < 90*60 && count >= nTotalBlocks)
 657     {
 658         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 659         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 660
 661         overviewPage->showOutOfSyncWarning(false);
 662     }
 663     else
 664     {
 665         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 666         labelBlocksIcon->setMovie(syncIconMovie);
 667         syncIconMovie->start();
 668
 669         overviewPage->showOutOfSyncWarning(true);
 670     }
 671
 672     if(!text.isEmpty())
 673     {
 674         tooltip += QString("<br>");
 675         tooltip += tr("Last received block was generated %1.").arg(text);
 676     }
 677
 678     // Don't word-wrap this (fixed-width) tooltip
 679     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 680
 681     labelBlocksIcon->setToolTip(tooltip);
 682     progressBarLabel->setToolTip(tooltip);
 683     progressBar->setToolTip(tooltip);
 684 }
 685
 686 void BitcoinGUI::updateMining()
 687 {
 688    if(!walletModel)
 689       return;
 690
 691     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 692
 693     if (!clientModel->getNumConnections())
 694     {
 695         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 696         return;
 697     }
 698
 699     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 700     {
 701         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 702         return;
 703     }
 704
 705     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 706     {
 707         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 708         return;
 709     }
 710
 711     if (nStakeInputsMapSize > 0)
 712     {
 713         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 714
 715         uint64_t nNetworkWeight = clientModel->getPoSKernelPS();
 716
 717         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>"));
 718     }
 719     else
 720         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 721 }
 722
 723 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 724 {
 725     QString strTitle = tr("NovaCoin") + " - ";
 726     // Default to information icon
 727     int nMBoxIcon = QMessageBox::Information;
 728     int nNotifyIcon = Notificator::Information;
 729
 730
 731     // Check for usage of predefined title
 732     switch (style) {
 733     case CClientUIInterface::MSG_ERROR:
 734         strTitle += tr("Error");
 735         break;
 736     case CClientUIInterface::MSG_WARNING:
 737         strTitle += tr("Warning");
 738         break;
 739     case CClientUIInterface::MSG_INFORMATION:
 740         strTitle += tr("Information");
 741         break;
 742     default:
 743         strTitle += title; // Use supplied title
 744     }
 745
 746     // Check for error/warning icon
 747     if (style & CClientUIInterface::ICON_ERROR) {
 748         nMBoxIcon = QMessageBox::Critical;
 749         nNotifyIcon = Notificator::Critical;
 750     }
 751     else if (style & CClientUIInterface::ICON_WARNING) {
 752         nMBoxIcon = QMessageBox::Warning;
 753         nNotifyIcon = Notificator::Warning;
 754     }
 755
 756     // Display message
 757     if (style & CClientUIInterface::MODAL) {
 758         // Check for buttons, use OK as default, if none was supplied
 759         QMessageBox::StandardButton buttons;
 760         buttons = QMessageBox::Ok;
 761
 762         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 763
 764         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 765
 766         mBox.exec();
 767     }
 768     else
 769         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 770 }
 771
 772
 773 void BitcoinGUI::changeEvent(QEvent *e)
 774 {
 775     QMainWindow::changeEvent(e);
 776 #ifndef Q_OS_MAC // Ignored on Mac
 777     if(e->type() == QEvent::WindowStateChange)
 778     {
 779         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 780         {
 781             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 782             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 783             {
 784                 QTimer::singleShot(0, this, SLOT(hide()));
 785                 e->ignore();
 786             }
 787         }
 788     }
 789 #endif
 790 }
 791
 792 void BitcoinGUI::closeEvent(QCloseEvent *event)
 793 {
 794     if(clientModel)
 795     {
 796 #ifndef Q_OS_MAC // Ignored on Mac
 797         if(!clientModel->getOptionsModel()->getMinimizeOnClose())
 798         {
 799             qApp->quit();
 800         }
 801 #endif
 802     }
 803     // close rpcConsole in case it was open to make some space for the shutdown window
 804     rpcConsole->close();
 805
 806     QMainWindow::closeEvent(event);
 807 }
 808
 809 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 810 {
 811     QString strMessage =
 812         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 813           "which goes to the nodes that process your transaction and helps to support the network.  "
 814           "Do you want to pay the fee?").arg(
 815                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 816     QMessageBox::StandardButton retval = QMessageBox::question(
 817           this, tr("Confirm transaction fee"), strMessage,
 818           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 819     *payFee = (retval == QMessageBox::Yes);
 820 }
 821
 822 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 823 {
 824     if(!walletModel || !clientModel)
 825         return;
 826     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 827     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 828                     .data(Qt::EditRole).toULongLong();
 829     if(!clientModel->inInitialBlockDownload())
 830     {
 831         // On new transaction, make an info balloon
 832         // Unless the initial block download is in progress, to prevent balloon-spam
 833         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 834                         .data().toString();
 835         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 836                         .data().toString();
 837         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 838                         .data().toString();
 839         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 840                             TransactionTableModel::ToAddress, parent)
 841                         .data(Qt::DecorationRole));
 842
 843         notificator->notify(Notificator::Information,
 844                             (amount)<0 ? tr("Sent transaction") :
 845                                          tr("Incoming transaction"),
 846                               tr("Date: %1\n"
 847                                  "Amount: %2\n"
 848                                  "Type: %3\n"
 849                                  "Address: %4\n")
 850                               .arg(date)
 851                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 852                               .arg(type)
 853                               .arg(address), icon);
 854     }
 855 }
 856
 857 void BitcoinGUI::gotoOverviewPage()
 858 {
 859     overviewAction->setChecked(true);
 860     centralWidget->setCurrentWidget(overviewPage);
 861
 862     exportAction->setEnabled(false);
 863     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 864 }
 865
 866 void BitcoinGUI::gotoHistoryPage()
 867 {
 868     historyAction->setChecked(true);
 869     centralWidget->setCurrentWidget(transactionsPage);
 870
 871     exportAction->setEnabled(true);
 872     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 873     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 874 }
 875
 876 void BitcoinGUI::gotoMintingPage()
 877 {
 878     mintingAction->setChecked(true);
 879     centralWidget->setCurrentWidget(mintingPage);
 880
 881     exportAction->setEnabled(true);
 882     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 883     connect(exportAction, SIGNAL(triggered()), mintingView, SLOT(exportClicked()));
 884 }
 885
 886
 887 void BitcoinGUI::gotoAddressBookPage()
 888 {
 889     addressBookAction->setChecked(true);
 890     centralWidget->setCurrentWidget(addressBookPage);
 891
 892     exportAction->setEnabled(true);
 893     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 894     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 895 }
 896
 897 void BitcoinGUI::gotoReceiveCoinsPage()
 898 {
 899     receiveCoinsAction->setChecked(true);
 900     centralWidget->setCurrentWidget(receiveCoinsPage);
 901
 902     exportAction->setEnabled(true);
 903     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 904     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 905 }
 906
 907 void BitcoinGUI::gotoSendCoinsPage()
 908 {
 909     sendCoinsAction->setChecked(true);
 910     centralWidget->setCurrentWidget(sendCoinsPage);
 911
 912     exportAction->setEnabled(false);
 913     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 914 }
 915
 916 void BitcoinGUI::gotoSignMessageTab(QString addr)
 917 {
 918     // call show() in showTab_SM()
 919     signVerifyMessageDialog->showTab_SM(true);
 920
 921     if(!addr.isEmpty())
 922         signVerifyMessageDialog->setAddress_SM(addr);
 923 }
 924
 925 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 926 {
 927     // call show() in showTab_VM()
 928     signVerifyMessageDialog->showTab_VM(true);
 929
 930     if(!addr.isEmpty())
 931         signVerifyMessageDialog->setAddress_VM(addr);
 932 }
 933
 934 void BitcoinGUI::gotoMultisigPage()
 935 {
 936     multisigPage->show();
 937     multisigPage->raise();
 938     multisigPage->activateWindow();
 939 }
 940
 941 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 942 {
 943     // Accept only URIs
 944     if(event->mimeData()->hasUrls())
 945         event->acceptProposedAction();
 946 }
 947
 948 void BitcoinGUI::dropEvent(QDropEvent *event)
 949 {
 950     if(event->mimeData()->hasUrls())
 951     {
 952         int nValidUrisFound = 0;
 953         QList<QUrl> uris = event->mimeData()->urls();
 954         foreach(const QUrl &uri, uris)
 955         {
 956             if (sendCoinsPage->handleURI(uri.toString()))
 957                 nValidUrisFound++;
 958         }
 959
 960         // if valid URIs were found
 961         if (nValidUrisFound)
 962             gotoSendCoinsPage();
 963         else
 964             notificator->notify(Notificator::Warning, tr("URI handling"), tr("URI can not be parsed! This can be caused by an invalid NovaCoin address or malformed URI parameters."));
 965     }
 966
 967     event->acceptProposedAction();
 968 }
 969
 970 void BitcoinGUI::handleURI(QString strURI)
 971 {
 972     // URI has to be valid
 973     if (sendCoinsPage->handleURI(strURI))
 974     {
 975         showNormalIfMinimized();
 976         gotoSendCoinsPage();
 977     }
 978     else
 979         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."));
 980 }
 981
 982 void BitcoinGUI::setEncryptionStatus(int status)
 983 {
 984     switch(status)
 985     {
 986     case WalletModel::Unencrypted:
 987         labelEncryptionIcon->hide();
 988         encryptWalletAction->setChecked(false);
 989         changePassphraseAction->setEnabled(false);
 990         lockWalletAction->setEnabled(false);
 991         unlockWalletAction->setEnabled(false);
 992         unlockWalletMiningAction->setEnabled(false);
 993         encryptWalletAction->setEnabled(true);
 994         break;
 995     case WalletModel::Unlocked:
 996         labelEncryptionIcon->show();
 997         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 998         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 999         encryptWalletAction->setChecked(true);
1000         changePassphraseAction->setEnabled(true);
1001         encryptWalletAction->setEnabled(true);
1002
1003         lockWalletAction->setEnabled(true);
1004         lockWalletAction->setChecked(false);
1005         unlockWalletAction->setEnabled(false);
1006         unlockWalletMiningAction->setEnabled(false);
1007
1008         if (fWalletUnlockMintOnly)
1009             unlockWalletMiningAction->setChecked(true);
1010         else
1011             unlockWalletAction->setChecked(true);
1012
1013         break;
1014     case WalletModel::Locked:
1015         labelEncryptionIcon->show();
1016         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1017         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1018         encryptWalletAction->setChecked(true);
1019         changePassphraseAction->setEnabled(true);
1020         encryptWalletAction->setEnabled(true);
1021
1022         lockWalletAction->setChecked(true);
1023         unlockWalletAction->setChecked(false);
1024         unlockWalletMiningAction->setChecked(false);
1025
1026         lockWalletAction->setEnabled(false);
1027         unlockWalletAction->setEnabled(true);
1028         unlockWalletMiningAction->setEnabled(true);
1029         break;
1030     }
1031 }
1032
1033 void BitcoinGUI::encryptWallet(bool status)
1034 {
1035     if(!walletModel)
1036         return;
1037     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
1038                                      AskPassphraseDialog::Decrypt, this);
1039     dlg.setModel(walletModel);
1040     dlg.exec();
1041
1042     setEncryptionStatus(walletModel->getEncryptionStatus());
1043 }
1044
1045 void BitcoinGUI::unlockWalletMining(bool status)
1046 {
1047     if(!walletModel)
1048         return;
1049
1050     // Unlock wallet when requested by wallet model
1051     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1052     {
1053         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1054         dlg.setModel(walletModel);
1055         dlg.exec();
1056     }
1057 }
1058
1059 void BitcoinGUI::backupWallet()
1060 {
1061 #if QT_VERSION < 0x050000
1062     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1063 #else
1064     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1065 #endif
1066     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1067     if(!filename.isEmpty()) {
1068         if(!walletModel->backupWallet(filename)) {
1069             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1070         }
1071     }
1072 }
1073
1074 void BitcoinGUI::dumpWallet()
1075 {
1076    if(!walletModel)
1077       return;
1078
1079    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1080    if(!ctx.isValid())
1081    {
1082        // Unlock wallet failed or was cancelled
1083        return;
1084    }
1085
1086 #if QT_VERSION < 0x050000
1087     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1088 #else
1089     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1090 #endif
1091     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1092     if(!filename.isEmpty()) {
1093         if(!walletModel->dumpWallet(filename)) {
1094             message(tr("Dump failed"),
1095                          tr("An error happened while trying to save the keys to your location.\n"
1096                             "Keys were not saved.")
1097                       ,CClientUIInterface::MSG_ERROR);
1098         }
1099         else
1100           message(tr("Dump successful"),
1101                        tr("Keys were saved to this file:\n%2")
1102                        .arg(filename)
1103                       ,CClientUIInterface::MSG_INFORMATION);
1104     }
1105 }
1106
1107 void BitcoinGUI::importWallet()
1108 {
1109    if(!walletModel)
1110       return;
1111
1112    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1113    if(!ctx.isValid())
1114    {
1115        // Unlock wallet failed or was cancelled
1116        return;
1117    }
1118
1119 #if QT_VERSION < 0x050000
1120     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1121 #else
1122     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1123 #endif
1124     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1125     if(!filename.isEmpty()) {
1126         if(!walletModel->importWallet(filename)) {
1127             message(tr("Import Failed"),
1128                          tr("An error happened while trying to import the keys.\n"
1129                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1130                          .arg(filename)
1131                       ,CClientUIInterface::MSG_ERROR);
1132         }
1133         else
1134           message(tr("Import Successful"),
1135                        tr("All keys from:\n %1,\n were imported into your wallet.")
1136                        .arg(filename)
1137                       ,CClientUIInterface::MSG_INFORMATION);
1138     }
1139 }
1140
1141
1142 void BitcoinGUI::changePassphrase()
1143 {
1144     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1145     dlg.setModel(walletModel);
1146     dlg.exec();
1147 }
1148
1149 void BitcoinGUI::unlockWallet()
1150 {
1151     if(!walletModel)
1152         return;
1153     // Unlock wallet when requested by wallet model
1154     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1155     {
1156         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1157         dlg.setModel(walletModel);
1158         dlg.exec();
1159     }
1160 }
1161
1162 void BitcoinGUI::lockWallet()
1163 {
1164     if(!walletModel)
1165         return;
1166
1167     walletModel->setWalletLocked(true);
1168 }
1169
1170 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1171 {
1172     // activateWindow() (sometimes) helps with keyboard focus on Windows
1173     if (isHidden())
1174     {
1175         // Make sure the window is not minimized
1176         setWindowState(windowState() & (~Qt::WindowMinimized | Qt::WindowActive));
1177         // Then show it
1178         show();
1179         raise();
1180         activateWindow();
1181     }
1182     else if (isMinimized())
1183     {
1184         showNormal();
1185         raise();
1186         activateWindow();
1187     }
1188     else if (GUIUtil::isObscured(this))
1189     {
1190         raise();
1191         activateWindow();
1192         if(fToggleHidden)
1193         {
1194             Sleep(1);
1195             if (GUIUtil::isObscured(this))
1196                 hide();
1197         }
1198     }
1199     else if(fToggleHidden)
1200         hide();
1201 }
1202
1203 void BitcoinGUI::toggleHidden()
1204 {
1205     showNormalIfMinimized(true);
1206 }
1207
1208 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
1209 {
1210     // Report errors from network/worker thread
1211     if(modal)
1212     {
1213         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
1214     } else {
1215         notificator->notify(Notificator::Critical, title, message);
1216     }
1217 }