src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 2011-2012
   5  * The Bitcoin Developers 2011-2012
   6  */
   7 #include "bitcoingui.h"
   8 #include "transactiontablemodel.h"
   9 #include "addressbookpage.h"
  10 #include "sendcoinsdialog.h"
  11 #include "signverifymessagedialog.h"
  12 #include "optionsdialog.h"
  13 #include "aboutdialog.h"
  14 #include "clientmodel.h"
  15 #include "walletmodel.h"
  16 #include "editaddressdialog.h"
  17 #include "optionsmodel.h"
  18 #include "transactiondescdialog.h"
  19 #include "addresstablemodel.h"
  20 #include "transactionview.h"
  21 #include "overviewpage.h"
  22 #include "bitcoinunits.h"
  23 #include "guiconstants.h"
  24 #include "askpassphrasedialog.h"
  25 #include "notificator.h"
  26 #include "guiutil.h"
  27 #include "ui_interface.h"
  28 #include "rpcconsole.h"
  29 #include "mintingview.h"
  30
  31 #ifdef Q_OS_MAC
  32 #include "macdockiconhandler.h"
  33 #endif
  34
  35 #include <QApplication>
  36 #if QT_VERSION < 0x050000
  37 #include <QMainWindow>
  38 #endif
  39 #include <QMenuBar>
  40 #include <QMenu>
  41 #include <QIcon>
  42 #include <QTabWidget>
  43 #include <QVBoxLayout>
  44 #include <QToolBar>
  45 #include <QStatusBar>
  46 #include <QLabel>
  47 #include <QLineEdit>
  48 #include <QPushButton>
  49 #include <QLocale>
  50 #include <QMessageBox>
  51 #include <QProgressBar>
  52 #include <QStackedWidget>
  53 #include <QDateTime>
  54 #include <QMovie>
  55 #include <QFileDialog>
  56 #if QT_VERSION < 0x050000
  57 #include <QDesktopServices>
  58 #else
  59 #include <QStandardPaths>
  60 #endif
  61 #include <QTimer>
  62 #include <QDragEnterEvent>
  63 #if QT_VERSION < 0x050000
  64 #include <QUrl>
  65 #endif
  66 #include <QStyle>
  67 #include <QMimeData>
  68
  69 #include <iostream>
  70
  71 extern bool fWalletUnlockMintOnly;
  72
  73 BitcoinGUI::BitcoinGUI(QWidget *parent):
  74     QMainWindow(parent),
  75     clientModel(0),
  76     walletModel(0),
  77     encryptWalletAction(0),
  78     lockWalletAction(0),
  79     unlockWalletAction(0),
  80     unlockWalletMiningAction(0),
  81     changePassphraseAction(0),
  82     aboutQtAction(0),
  83     trayIcon(0),
  84     notificator(0),
  85     rpcConsole(0)
  86 {
  87     resize(850, 550);
  88     setWindowTitle(tr("NovaCoin") + " - " + tr("Wallet"));
  89 #ifndef Q_OS_MAC
  90     qApp->setWindowIcon(QIcon(":icons/bitcoin"));
  91     setWindowIcon(QIcon(":icons/bitcoin"));
  92 #else
  93     setUnifiedTitleAndToolBarOnMac(true);
  94     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  95 #endif
  96     // Accept D&D of URIs
  97     setAcceptDrops(true);
  98
  99     // Create actions for the toolbar, menu bar and tray/dock icon
 100     createActions();
 101
 102     // Create application menu bar
 103     createMenuBar();
 104
 105     // Create the toolbars
 106     createToolBars();
 107
 108     // Create the tray icon (or setup the dock icon)
 109     createTrayIcon();
 110
 111     // Create tabs
 112     overviewPage = new OverviewPage();
 113
 114     transactionsPage = new QWidget(this);
 115     QVBoxLayout *vbox = new QVBoxLayout();
 116     transactionView = new TransactionView(this);
 117     vbox->addWidget(transactionView);
 118     transactionsPage->setLayout(vbox);
 119
 120     mintingPage = new QWidget(this);
 121     QVBoxLayout *vboxMinting = new QVBoxLayout();
 122     mintingView = new MintingView(this);
 123     vboxMinting->addWidget(mintingView);
 124     mintingPage->setLayout(vboxMinting);
 125
 126     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 127
 128     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 129
 130     sendCoinsPage = new SendCoinsDialog(this);
 131
 132     signVerifyMessageDialog = new SignVerifyMessageDialog(this);
 133
 134     centralWidget = new QStackedWidget(this);
 135     centralWidget->addWidget(overviewPage);
 136     centralWidget->addWidget(transactionsPage);
 137     centralWidget->addWidget(mintingPage);
 138     centralWidget->addWidget(addressBookPage);
 139     centralWidget->addWidget(receiveCoinsPage);
 140     centralWidget->addWidget(sendCoinsPage);
 141     setCentralWidget(centralWidget);
 142
 143     // Create status bar
 144     statusBar();
 145
 146     // Status bar notification icons
 147     QFrame *frameBlocks = new QFrame();
 148     frameBlocks->setContentsMargins(0,0,0,0);
 149     frameBlocks->setMinimumWidth(72);
 150     frameBlocks->setMaximumWidth(72);
 151     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 152     frameBlocksLayout->setContentsMargins(3,0,3,0);
 153     frameBlocksLayout->setSpacing(3);
 154     labelEncryptionIcon = new QLabel();
 155     labelMiningIcon = new QLabel();
 156     labelConnectionsIcon = new QLabel();
 157     labelBlocksIcon = new QLabel();
 158     frameBlocksLayout->addStretch();
 159     frameBlocksLayout->addWidget(labelEncryptionIcon);
 160     frameBlocksLayout->addStretch();
 161     frameBlocksLayout->addWidget(labelMiningIcon);
 162     frameBlocksLayout->addStretch();
 163     frameBlocksLayout->addWidget(labelConnectionsIcon);
 164     frameBlocksLayout->addStretch();
 165     frameBlocksLayout->addWidget(labelBlocksIcon);
 166     frameBlocksLayout->addStretch();
 167
 168     // Progress bar and label for blocks download
 169     progressBarLabel = new QLabel();
 170     progressBarLabel->setVisible(false);
 171     progressBar = new QProgressBar();
 172     progressBar->setAlignment(Qt::AlignCenter);
 173     progressBar->setVisible(false);
 174
 175     // Override style sheet for progress bar for styles that have a segmented progress bar,
 176     // as they make the text unreadable (workaround for issue #1071)
 177     // See https://qt-project.org/doc/qt-4.8/gallery.html
 178     QString curStyle = qApp->style()->metaObject()->className();
 179     if(curStyle == "QWindowsStyle" || curStyle == "QWindowsXPStyle")
 180     {
 181         progressBar->setStyleSheet("QProgressBar { background-color: #e8e8e8; border: 1px solid grey; border-radius: 7px; padding: 1px; text-align: center; } QProgressBar::chunk { background: QLinearGradient(x1: 0, y1: 0, x2: 1, y2: 0, stop: 0 #FF8000, stop: 1 orange); border-radius: 7px; margin: 0px; }");
 182     }
 183
 184     statusBar()->addWidget(progressBarLabel);
 185     statusBar()->addWidget(progressBar);
 186     statusBar()->addPermanentWidget(frameBlocks);
 187
 188     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 189
 190     // Clicking on a transaction on the overview page simply sends you to transaction history page
 191     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 192     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
 193
 194     // Double-clicking on a transaction on the transaction history page shows details
 195     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 196
 197     rpcConsole = new RPCConsole(this);
 198     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
 199
 200     // Clicking on "Verify Message" in the address book sends you to the verify message tab
 201     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
 202     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
 203     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 204
 205     gotoOverviewPage();
 206 }
 207
 208 BitcoinGUI::~BitcoinGUI()
 209 {
 210     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 211         trayIcon->hide();
 212 #ifdef Q_OS_MAC
 213     delete appMenuBar;
 214 #endif
 215 }
 216
 217 void BitcoinGUI::createActions()
 218 {
 219     QActionGroup *tabGroup = new QActionGroup(this);
 220
 221     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 222     overviewAction->setToolTip(tr("Show general overview of wallet"));
 223     overviewAction->setCheckable(true);
 224     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 225     tabGroup->addAction(overviewAction);
 226
 227     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 228     sendCoinsAction->setToolTip(tr("Send coins to a NovaCoin address"));
 229     sendCoinsAction->setCheckable(true);
 230     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 231     tabGroup->addAction(sendCoinsAction);
 232
 233     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 234     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 235     receiveCoinsAction->setCheckable(true);
 236     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 237     tabGroup->addAction(receiveCoinsAction);
 238
 239     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 240     historyAction->setToolTip(tr("Browse transaction history"));
 241     historyAction->setCheckable(true);
 242     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 243     tabGroup->addAction(historyAction);
 244
 245     mintingAction = new QAction(QIcon(":/icons/history"), tr("&Minting"), this);
 246     mintingAction->setToolTip(tr("Show your minting capacity"));
 247     mintingAction->setCheckable(true);
 248     mintingAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 249     tabGroup->addAction(mintingAction);
 250
 251     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 252     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 253     addressBookAction->setCheckable(true);
 254     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_6));
 255     tabGroup->addAction(addressBookAction);
 256
 257     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 258     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 259     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 260     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 261     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 262     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 263     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 264     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 265     connect(mintingAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 266     connect(mintingAction, SIGNAL(triggered()), this, SLOT(gotoMintingPage()));
 267     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 268     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 269
 270     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 271     quitAction->setToolTip(tr("Quit application"));
 272     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 273     quitAction->setMenuRole(QAction::QuitRole);
 274     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About NovaCoin"), this);
 275     aboutAction->setToolTip(tr("Show information about NovaCoin"));
 276     aboutAction->setMenuRole(QAction::AboutRole);
 277 #if QT_VERSION < 0x050000
 278     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 279 #else
 280     aboutQtAction = new QAction(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 281 #endif
 282     aboutQtAction->setToolTip(tr("Show information about Qt"));
 283     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 284     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 285     optionsAction->setToolTip(tr("Modify configuration options for NovaCoin"));
 286     optionsAction->setMenuRole(QAction::PreferencesRole);
 287     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
 288     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 289     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 290     encryptWalletAction->setCheckable(true);
 291     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 292     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 293     dumpWalletAction = new QAction(QIcon(":/icons/dump"), tr("&Dump Wallet..."), this);
 294     dumpWalletAction->setStatusTip(tr("Dump keys to a text file"));
 295     importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
 296     importWalletAction->setStatusTip(tr("Import keys into a wallet"));
 297     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 298     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 299     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
 300     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
 301
 302     lockWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Lock wallet"), this);
 303     lockWalletAction->setToolTip(tr("Lock wallet"));
 304     lockWalletAction->setCheckable(true);
 305
 306     unlockWalletAction = new QAction(QIcon(":/icons/lock_open"), tr("Unlo&ck wallet"), this);
 307     unlockWalletAction->setToolTip(tr("Unlock wallet"));
 308     unlockWalletAction->setCheckable(true);
 309
 310     unlockWalletMiningAction = new QAction(QIcon(":/icons/mining_active"), tr("Unlo&ck wallet for mining"), this);
 311     unlockWalletMiningAction->setToolTip(tr("Unlock wallet for mining"));
 312     unlockWalletMiningAction->setCheckable(true);
 313
 314     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 315     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 316     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 317     openRPCConsoleAction->setToolTip(tr("Open debugging and diagnostic console"));
 318
 319     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 320     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 321     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 322     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 323     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 324     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 325     connect(lockWalletAction, SIGNAL(triggered(bool)), this, SLOT(lockWallet()));
 326     connect(unlockWalletAction, SIGNAL(triggered(bool)), this, SLOT(unlockWallet()));
 327     connect(unlockWalletMiningAction, SIGNAL(triggered(bool)), this, SLOT(unlockWalletMining(bool)));
 328     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 329     connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
 330     connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 331     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 332     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 333     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 334 }
 335
 336 void BitcoinGUI::createMenuBar()
 337 {
 338 #ifdef Q_OS_MAC
 339     // Create a decoupled menu bar on Mac which stays even if the window is closed
 340     appMenuBar = new QMenuBar();
 341 #else
 342     // Get the main window's menu bar on other platforms
 343     appMenuBar = menuBar();
 344 #endif
 345
 346     // Configure the menus
 347     QMenu *file = appMenuBar->addMenu(tr("&File"));
 348     file->addAction(backupWalletAction);
 349     file->addSeparator();
 350     file->addAction(dumpWalletAction);
 351     file->addAction(importWalletAction);
 352     file->addAction(exportAction);
 353     file->addAction(signMessageAction);
 354     file->addAction(verifyMessageAction);
 355     file->addSeparator();
 356     file->addAction(quitAction);
 357
 358     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 359     QMenu *securityMenu = settings->addMenu(QIcon(":/icons/key"), tr("&Wallet security"));
 360     securityMenu->addAction(encryptWalletAction);
 361     securityMenu->addAction(changePassphraseAction);
 362     securityMenu->addAction(unlockWalletAction);
 363     securityMenu->addAction(unlockWalletMiningAction);
 364     securityMenu->addAction(lockWalletAction);
 365     settings->addAction(optionsAction);
 366
 367     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 368     help->addAction(openRPCConsoleAction);
 369     help->addSeparator();
 370     help->addAction(aboutAction);
 371     help->addAction(aboutQtAction);
 372 }
 373
 374 void BitcoinGUI::createToolBars()
 375 {
 376     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 377     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 378     toolbar->addAction(overviewAction);
 379     toolbar->addAction(sendCoinsAction);
 380     toolbar->addAction(receiveCoinsAction);
 381     toolbar->addAction(historyAction);
 382     toolbar->addAction(mintingAction);
 383     toolbar->addAction(addressBookAction);
 384
 385     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 386     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 387     toolbar2->addAction(exportAction);
 388 }
 389
 390 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 391 {
 392     this->clientModel = clientModel;
 393     if(clientModel)
 394     {
 395         // Replace some strings and icons, when using the testnet
 396         if(clientModel->isTestNet())
 397         {
 398             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 399 #ifndef Q_OS_MAC
 400             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 401             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 402 #else
 403             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 404 #endif
 405             if(trayIcon)
 406             {
 407                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 408                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 409                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 410             }
 411
 412             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 413         }
 414
 415         // Keep up to date with client
 416         setNumConnections(clientModel->getNumConnections());
 417         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 418
 419         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 420         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 421         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(updateMining()));
 422
 423         // Report errors from network/worker thread
 424         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 425
 426         rpcConsole->setClientModel(clientModel);
 427         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 428         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 429     }
 430 }
 431
 432 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 433 {
 434     this->walletModel = walletModel;
 435     if(walletModel)
 436     {
 437         // Report errors from wallet thread
 438         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 439
 440         // Put transaction list in tabs
 441         transactionView->setModel(walletModel);
 442         mintingView->setModel(walletModel);
 443
 444         overviewPage->setModel(walletModel);
 445         addressBookPage->setModel(walletModel->getAddressTableModel());
 446         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 447         sendCoinsPage->setModel(walletModel);
 448         signVerifyMessageDialog->setModel(walletModel);
 449
 450         setEncryptionStatus(walletModel->getEncryptionStatus());
 451         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 452         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 453
 454         // Balloon pop-up for new transaction
 455         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 456                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 457
 458         // Ask for passphrase if needed
 459         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 460     }
 461 }
 462
 463 void BitcoinGUI::createTrayIcon()
 464 {
 465     QMenu *trayIconMenu;
 466 #ifndef Q_OS_MAC
 467     trayIcon = new QSystemTrayIcon(this);
 468     trayIconMenu = new QMenu(this);
 469     trayIcon->setContextMenu(trayIconMenu);
 470     trayIcon->setToolTip(tr("NovaCoin client"));
 471     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 472     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 473             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 474     trayIcon->show();
 475 #else
 476     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 477     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 478     dockIconHandler->setMainWindow((QMainWindow *)this);
 479     trayIconMenu = dockIconHandler->dockMenu();
 480 #endif
 481
 482     // Configuration of the tray icon (or dock icon) icon menu
 483     trayIconMenu->addAction(toggleHideAction);
 484     trayIconMenu->addSeparator();
 485     trayIconMenu->addAction(sendCoinsAction);
 486     trayIconMenu->addAction(receiveCoinsAction);
 487     trayIconMenu->addSeparator();
 488     trayIconMenu->addAction(signMessageAction);
 489     trayIconMenu->addAction(verifyMessageAction);
 490     trayIconMenu->addSeparator();
 491     trayIconMenu->addAction(optionsAction);
 492     trayIconMenu->addAction(openRPCConsoleAction);
 493 #ifndef Q_OS_MAC // This is built-in on Mac
 494     trayIconMenu->addSeparator();
 495     trayIconMenu->addAction(quitAction);
 496 #endif
 497 }
 498
 499 #ifndef Q_OS_MAC
 500 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 501 {
 502     if(reason == QSystemTrayIcon::Trigger)
 503     {
 504         // Click on system tray icon triggers show/hide of the main window
 505         toggleHideAction->trigger();
 506     }
 507 }
 508 #endif
 509
 510 void BitcoinGUI::optionsClicked()
 511 {
 512     if(!clientModel || !clientModel->getOptionsModel())
 513         return;
 514     OptionsDialog dlg;
 515     dlg.setModel(clientModel->getOptionsModel());
 516     dlg.exec();
 517 }
 518
 519 void BitcoinGUI::aboutClicked()
 520 {
 521     AboutDialog dlg;
 522     dlg.setModel(clientModel);
 523     dlg.exec();
 524 }
 525
 526 void BitcoinGUI::setNumConnections(int count)
 527 {
 528     QString icon;
 529     switch(count)
 530     {
 531     case 0: icon = ":/icons/connect_0"; break;
 532     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 533     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 534     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 535     default: icon = ":/icons/connect_4"; break;
 536     }
 537     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 538     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 539 }
 540
 541 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 542 {
 543     // don't show / hide progress bar and its label if we have no connection to the network
 544     if (!clientModel || clientModel->getNumConnections() == 0)
 545     {
 546         progressBarLabel->setVisible(false);
 547         progressBar->setVisible(false);
 548
 549         return;
 550     }
 551
 552     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 553     QString tooltip;
 554
 555     if(count < nTotalBlocks)
 556     {
 557         int nRemainingBlocks = nTotalBlocks - count;
 558         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 559
 560         if (strStatusBarWarnings.isEmpty())
 561         {
 562             progressBarLabel->setText(tr("Synchronizing with network..."));
 563             progressBarLabel->setVisible(true);
 564             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 565             progressBar->setMaximum(nTotalBlocks);
 566             progressBar->setValue(count);
 567             progressBar->setVisible(true);
 568         }
 569
 570         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 571     }
 572     else
 573     {
 574         if (strStatusBarWarnings.isEmpty())
 575             progressBarLabel->setVisible(false);
 576
 577         progressBar->setVisible(false);
 578         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 579     }
 580
 581     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 582     if (!strStatusBarWarnings.isEmpty())
 583     {
 584         progressBarLabel->setText(strStatusBarWarnings);
 585         progressBarLabel->setVisible(true);
 586         progressBar->setVisible(false);
 587     }
 588
 589     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 590     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 591     QString text;
 592
 593     // Represent time from last generated block in human readable text
 594     if(secs <= 0)
 595     {
 596         // Fully up to date. Leave text empty.
 597     }
 598     else if(secs < 60)
 599     {
 600         text = tr("%n second(s) ago","",secs);
 601     }
 602     else if(secs < 60*60)
 603     {
 604         text = tr("%n minute(s) ago","",secs/60);
 605     }
 606     else if(secs < 24*60*60)
 607     {
 608         text = tr("%n hour(s) ago","",secs/(60*60));
 609     }
 610     else
 611     {
 612         text = tr("%n day(s) ago","",secs/(60*60*24));
 613     }
 614
 615     // Set icon state: spinning if catching up, tick otherwise
 616     if(secs < 90*60 && count >= nTotalBlocks)
 617     {
 618         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 619         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 620
 621         overviewPage->showOutOfSyncWarning(false);
 622     }
 623     else
 624     {
 625         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 626         labelBlocksIcon->setMovie(syncIconMovie);
 627         syncIconMovie->start();
 628
 629         overviewPage->showOutOfSyncWarning(true);
 630     }
 631
 632     if(!text.isEmpty())
 633     {
 634         tooltip += QString("<br>");
 635         tooltip += tr("Last received block was generated %1.").arg(text);
 636     }
 637
 638     // Don't word-wrap this (fixed-width) tooltip
 639     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 640
 641     labelBlocksIcon->setToolTip(tooltip);
 642     progressBarLabel->setToolTip(tooltip);
 643     progressBar->setToolTip(tooltip);
 644 }
 645
 646 void BitcoinGUI::updateMining()
 647 {
 648    if(!walletModel)
 649       return;
 650
 651     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 652
 653     if (!clientModel->getNumConnections())
 654     {
 655         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 656         return;
 657     }
 658
 659     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 660     {
 661         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 662         return;
 663     }
 664
 665     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 666     {
 667         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 668         return;
 669     }
 670
 671     uint64 nMinWeight = 0, nMaxWeight = 0, nTotalWeight = 0;
 672     walletModel->getStakeWeight(nMinWeight, nMaxWeight, nTotalWeight);
 673
 674     if (nTotalWeight > 0)
 675     {
 676         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 677
 678         uint64 nNetworkWeight = clientModel->getPoSKernelPS();
 679 /*
 680         double dDifficulty = clientModel->getDifficulty(true);
 681         QString msg;
 682
 683         int nApproxTime = 4294967297 * dDifficulty / nTotalWeight;
 684
 685         if (nApproxTime < 60)
 686             msg = tr("%n second(s)", "", nApproxTime);
 687         else if (nApproxTime < 60*60)
 688             msg = tr("%n minute(s)", "", nApproxTime / 60);
 689         else if (nApproxTime < 24*60*60)
 690             msg = tr("%n hour(s)", "", nApproxTime / 3600);
 691         else
 692             msg = tr("%n day(s)", "", nApproxTime / 86400);
 693
 694         labelMiningIcon->setToolTip(tr("Stake miner is active\nYour current stake weight is %1\nNetwork weight is %2\nAverage block generation time is %3").arg(nTotalWeight).arg(dNetworkWeight).arg(msg));
 695 */
 696
 697         labelMiningIcon->setToolTip(tr("Stake miner is active\nYour current stake weight is %1\nNetwork weight is %2").arg(nTotalWeight).arg(nNetworkWeight));
 698     }
 699     else
 700         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 701 }
 702
 703 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 704 {
 705     // Report errors from network/worker thread
 706     if(modal)
 707     {
 708         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 709     } else {
 710         notificator->notify(Notificator::Critical, title, message);
 711     }
 712 }
 713
 714 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 715 {
 716     QString strTitle = tr("NovaCoin") + " - ";
 717     // Default to information icon
 718     int nMBoxIcon = QMessageBox::Information;
 719     int nNotifyIcon = Notificator::Information;
 720
 721
 722     // Check for usage of predefined title
 723     switch (style) {
 724     case CClientUIInterface::MSG_ERROR:
 725         strTitle += tr("Error");
 726         break;
 727     case CClientUIInterface::MSG_WARNING:
 728         strTitle += tr("Warning");
 729         break;
 730     case CClientUIInterface::MSG_INFORMATION:
 731         strTitle += tr("Information");
 732         break;
 733     default:
 734         strTitle += title; // Use supplied title
 735     }
 736
 737     // Check for error/warning icon
 738     if (style & CClientUIInterface::ICON_ERROR) {
 739         nMBoxIcon = QMessageBox::Critical;
 740         nNotifyIcon = Notificator::Critical;
 741     }
 742     else if (style & CClientUIInterface::ICON_WARNING) {
 743         nMBoxIcon = QMessageBox::Warning;
 744         nNotifyIcon = Notificator::Warning;
 745     }
 746
 747     // Display message
 748     if (style & CClientUIInterface::MODAL) {
 749         // Check for buttons, use OK as default, if none was supplied
 750         QMessageBox::StandardButton buttons;
 751         buttons = QMessageBox::Ok;
 752
 753         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 754
 755         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 756
 757         mBox.exec();
 758     }
 759     else
 760         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 761 }
 762
 763
 764 void BitcoinGUI::changeEvent(QEvent *e)
 765 {
 766     QMainWindow::changeEvent(e);
 767 #ifndef Q_OS_MAC // Ignored on Mac
 768     if(e->type() == QEvent::WindowStateChange)
 769     {
 770         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 771         {
 772             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 773             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 774             {
 775                 QTimer::singleShot(0, this, SLOT(hide()));
 776                 e->ignore();
 777             }
 778         }
 779     }
 780 #endif
 781 }
 782
 783 void BitcoinGUI::closeEvent(QCloseEvent *event)
 784 {
 785     if(clientModel)
 786     {
 787 #ifndef Q_OS_MAC // Ignored on Mac
 788         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 789            !clientModel->getOptionsModel()->getMinimizeOnClose())
 790         {
 791             qApp->quit();
 792         }
 793 #endif
 794     }
 795     QMainWindow::closeEvent(event);
 796 }
 797
 798 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 799 {
 800     QString strMessage =
 801         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 802           "which goes to the nodes that process your transaction and helps to support the network.  "
 803           "Do you want to pay the fee?").arg(
 804                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 805     QMessageBox::StandardButton retval = QMessageBox::question(
 806           this, tr("Confirm transaction fee"), strMessage,
 807           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 808     *payFee = (retval == QMessageBox::Yes);
 809 }
 810
 811 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 812 {
 813     if(!walletModel || !clientModel)
 814         return;
 815     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 816     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 817                     .data(Qt::EditRole).toULongLong();
 818     if(!clientModel->inInitialBlockDownload())
 819     {
 820         // On new transaction, make an info balloon
 821         // Unless the initial block download is in progress, to prevent balloon-spam
 822         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 823                         .data().toString();
 824         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 825                         .data().toString();
 826         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 827                         .data().toString();
 828         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 829                             TransactionTableModel::ToAddress, parent)
 830                         .data(Qt::DecorationRole));
 831
 832         notificator->notify(Notificator::Information,
 833                             (amount)<0 ? tr("Sent transaction") :
 834                                          tr("Incoming transaction"),
 835                               tr("Date: %1\n"
 836                                  "Amount: %2\n"
 837                                  "Type: %3\n"
 838                                  "Address: %4\n")
 839                               .arg(date)
 840                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 841                               .arg(type)
 842                               .arg(address), icon);
 843     }
 844 }
 845
 846 void BitcoinGUI::gotoOverviewPage()
 847 {
 848     overviewAction->setChecked(true);
 849     centralWidget->setCurrentWidget(overviewPage);
 850
 851     exportAction->setEnabled(false);
 852     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 853 }
 854
 855 void BitcoinGUI::gotoHistoryPage()
 856 {
 857     historyAction->setChecked(true);
 858     centralWidget->setCurrentWidget(transactionsPage);
 859
 860     exportAction->setEnabled(true);
 861     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 862     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 863 }
 864
 865 void BitcoinGUI::gotoMintingPage()
 866 {
 867     mintingAction->setChecked(true);
 868     centralWidget->setCurrentWidget(mintingPage);
 869
 870     exportAction->setEnabled(true);
 871     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 872     connect(exportAction, SIGNAL(triggered()), mintingView, SLOT(exportClicked()));
 873 }
 874
 875
 876 void BitcoinGUI::gotoAddressBookPage()
 877 {
 878     addressBookAction->setChecked(true);
 879     centralWidget->setCurrentWidget(addressBookPage);
 880
 881     exportAction->setEnabled(true);
 882     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 883     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 884 }
 885
 886 void BitcoinGUI::gotoReceiveCoinsPage()
 887 {
 888     receiveCoinsAction->setChecked(true);
 889     centralWidget->setCurrentWidget(receiveCoinsPage);
 890
 891     exportAction->setEnabled(true);
 892     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 893     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 894 }
 895
 896 void BitcoinGUI::gotoSendCoinsPage()
 897 {
 898     sendCoinsAction->setChecked(true);
 899     centralWidget->setCurrentWidget(sendCoinsPage);
 900
 901     exportAction->setEnabled(false);
 902     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 903 }
 904
 905 void BitcoinGUI::gotoSignMessageTab(QString addr)
 906 {
 907     // call show() in showTab_SM()
 908     signVerifyMessageDialog->showTab_SM(true);
 909
 910     if(!addr.isEmpty())
 911         signVerifyMessageDialog->setAddress_SM(addr);
 912 }
 913
 914 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 915 {
 916     // call show() in showTab_VM()
 917     signVerifyMessageDialog->showTab_VM(true);
 918
 919     if(!addr.isEmpty())
 920         signVerifyMessageDialog->setAddress_VM(addr);
 921 }
 922
 923 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 924 {
 925     // Accept only URIs
 926     if(event->mimeData()->hasUrls())
 927         event->acceptProposedAction();
 928 }
 929
 930 void BitcoinGUI::dropEvent(QDropEvent *event)
 931 {
 932     if(event->mimeData()->hasUrls())
 933     {
 934         int nValidUrisFound = 0;
 935         QList<QUrl> uris = event->mimeData()->urls();
 936         foreach(const QUrl &uri, uris)
 937         {
 938             if (sendCoinsPage->handleURI(uri.toString()))
 939                 nValidUrisFound++;
 940         }
 941
 942         // if valid URIs were found
 943         if (nValidUrisFound)
 944             gotoSendCoinsPage();
 945         else
 946             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."));
 947     }
 948
 949     event->acceptProposedAction();
 950 }
 951
 952 void BitcoinGUI::handleURI(QString strURI)
 953 {
 954     // URI has to be valid
 955     if (sendCoinsPage->handleURI(strURI))
 956     {
 957         showNormalIfMinimized();
 958         gotoSendCoinsPage();
 959     }
 960     else
 961         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."));
 962 }
 963
 964 void BitcoinGUI::setEncryptionStatus(int status)
 965 {
 966     switch(status)
 967     {
 968     case WalletModel::Unencrypted:
 969         labelEncryptionIcon->hide();
 970         encryptWalletAction->setChecked(false);
 971         changePassphraseAction->setEnabled(false);
 972         lockWalletAction->setEnabled(false);
 973         unlockWalletAction->setEnabled(false);
 974         unlockWalletMiningAction->setEnabled(false);
 975         encryptWalletAction->setEnabled(true);
 976         break;
 977     case WalletModel::Unlocked:
 978         labelEncryptionIcon->show();
 979         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 980         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 981         encryptWalletAction->setChecked(true);
 982         changePassphraseAction->setEnabled(true);
 983         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 984
 985         lockWalletAction->setEnabled(true);
 986         lockWalletAction->setChecked(false);
 987         unlockWalletAction->setEnabled(false);
 988         unlockWalletMiningAction->setEnabled(false);
 989
 990         if (fWalletUnlockMintOnly)
 991             unlockWalletMiningAction->setChecked(true);
 992         else
 993             unlockWalletAction->setChecked(true);
 994
 995         break;
 996     case WalletModel::Locked:
 997         labelEncryptionIcon->show();
 998         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 999         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1000         encryptWalletAction->setChecked(true);
1001         changePassphraseAction->setEnabled(true);
1002         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1003
1004         lockWalletAction->setChecked(true);
1005         unlockWalletAction->setChecked(false);
1006         unlockWalletMiningAction->setChecked(false);
1007
1008         lockWalletAction->setEnabled(false);
1009         unlockWalletAction->setEnabled(true);
1010         unlockWalletMiningAction->setEnabled(true);
1011         break;
1012     }
1013 }
1014
1015 void BitcoinGUI::encryptWallet(bool status)
1016 {
1017     if(!walletModel)
1018         return;
1019     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
1020                                      AskPassphraseDialog::Decrypt, this);
1021     dlg.setModel(walletModel);
1022     dlg.exec();
1023
1024     setEncryptionStatus(walletModel->getEncryptionStatus());
1025 }
1026
1027 void BitcoinGUI::unlockWalletMining(bool status)
1028 {
1029     if(!walletModel)
1030         return;
1031
1032     // Unlock wallet when requested by wallet model
1033     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1034     {
1035         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1036         dlg.setModel(walletModel);
1037         dlg.exec();
1038     }
1039 }
1040
1041 void BitcoinGUI::backupWallet()
1042 {
1043 #if QT_VERSION < 0x050000
1044     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1045 #else
1046     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1047 #endif
1048     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1049     if(!filename.isEmpty()) {
1050         if(!walletModel->backupWallet(filename)) {
1051             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1052         }
1053     }
1054 }
1055
1056 void BitcoinGUI::dumpWallet()
1057 {
1058    if(!walletModel)
1059       return;
1060
1061    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1062    if(!ctx.isValid())
1063    {
1064        // Unlock wallet failed or was cancelled
1065        return;
1066    }
1067
1068 #if QT_VERSION < 0x050000
1069     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1070 #else
1071     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1072 #endif
1073     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1074     if(!filename.isEmpty()) {
1075         if(!walletModel->dumpWallet(filename)) {
1076             error(tr("Dump failed"),
1077                          tr("An error happened while trying to save the keys to your location.\n"
1078                             "Keys were not saved.")
1079                       ,CClientUIInterface::MSG_ERROR);
1080         }
1081         else
1082           message(tr("Dump successful"),
1083                        tr("Keys were saved to this file:\n%2")
1084                        .arg(filename)
1085                       ,CClientUIInterface::MSG_INFORMATION);
1086     }
1087 }
1088
1089 void BitcoinGUI::importWallet()
1090 {
1091    if(!walletModel)
1092       return;
1093
1094    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1095    if(!ctx.isValid())
1096    {
1097        // Unlock wallet failed or was cancelled
1098        return;
1099    }
1100
1101 #if QT_VERSION < 0x050000
1102     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1103 #else
1104     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1105 #endif
1106     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1107     if(!filename.isEmpty()) {
1108         if(!walletModel->importWallet(filename)) {
1109             error(tr("Import Failed"),
1110                          tr("An error happened while trying to import the keys.\n"
1111                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1112                          .arg(filename)
1113                       ,CClientUIInterface::MSG_ERROR);
1114         }
1115         else
1116           message(tr("Import Successful"),
1117                        tr("All keys from:\n %1,\n were imported into your wallet.")
1118                        .arg(filename)
1119                       ,CClientUIInterface::MSG_INFORMATION);
1120     }
1121 }
1122
1123
1124 void BitcoinGUI::changePassphrase()
1125 {
1126     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1127     dlg.setModel(walletModel);
1128     dlg.exec();
1129 }
1130
1131 void BitcoinGUI::unlockWallet()
1132 {
1133     if(!walletModel)
1134         return;
1135     // Unlock wallet when requested by wallet model
1136     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1137     {
1138         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1139         dlg.setModel(walletModel);
1140         dlg.exec();
1141     }
1142 }
1143
1144 void BitcoinGUI::lockWallet()
1145 {
1146     if(!walletModel)
1147         return;
1148
1149     walletModel->setWalletLocked(true);
1150 }
1151
1152 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1153 {
1154     // activateWindow() (sometimes) helps with keyboard focus on Windows
1155     if (isHidden())
1156     {
1157         show();
1158         activateWindow();
1159     }
1160     else if (isMinimized())
1161     {
1162         showNormal();
1163         activateWindow();
1164     }
1165     else if (GUIUtil::isObscured(this))
1166     {
1167         raise();
1168         activateWindow();
1169     }
1170     else if(fToggleHidden)
1171         hide();
1172 }
1173
1174 void BitcoinGUI::toggleHidden()
1175 {
1176     showNormalIfMinimized(true);
1177 }