src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 2011-2012
   5  * The Bitcoin Developers 2011-2012
   6  */
   7 #include "bitcoingui.h"
   8 #include "transactiontablemodel.h"
   9 #include "addressbookpage.h"
  10 #include "sendcoinsdialog.h"
  11 #include "signverifymessagedialog.h"
  12 #include "multisigdialog.h"
  13 #include "optionsdialog.h"
  14 #include "aboutdialog.h"
  15 #include "clientmodel.h"
  16 #include "walletmodel.h"
  17 #include "editaddressdialog.h"
  18 #include "optionsmodel.h"
  19 #include "transactiondescdialog.h"
  20 #include "addresstablemodel.h"
  21 #include "transactionview.h"
  22 #include "overviewpage.h"
  23 #include "bitcoinunits.h"
  24 #include "guiconstants.h"
  25 #include "askpassphrasedialog.h"
  26 #include "notificator.h"
  27 #include "guiutil.h"
  28 #include "ui_interface.h"
  29 #include "rpcconsole.h"
  30 #include "mintingview.h"
  31
  32 #ifdef Q_OS_MAC
  33 #include "macdockiconhandler.h"
  34 #endif
  35
  36 #include <QApplication>
  37 #if QT_VERSION < 0x050000
  38 #include <QMainWindow>
  39 #endif
  40 #include <QMenuBar>
  41 #include <QMenu>
  42 #include <QIcon>
  43 #include <QTabWidget>
  44 #include <QVBoxLayout>
  45 #include <QToolBar>
  46 #include <QStatusBar>
  47 #include <QLabel>
  48 #include <QLineEdit>
  49 #include <QPushButton>
  50 #include <QLocale>
  51 #include <QMessageBox>
  52 #include <QProgressBar>
  53 #include <QStackedWidget>
  54 #include <QDateTime>
  55 #include <QMovie>
  56 #include <QFileDialog>
  57 #if QT_VERSION < 0x050000
  58 #include <QDesktopServices>
  59 #else
  60 #include <QStandardPaths>
  61 #endif
  62 #include <QTimer>
  63 #include <QDragEnterEvent>
  64 #if QT_VERSION < 0x050000
  65 #include <QUrl>
  66 #endif
  67 #include <QStyle>
  68 #include <QMimeData>
  69
  70 #include <iostream>
  71
  72 extern bool fWalletUnlockMintOnly;
  73
  74 BitcoinGUI::BitcoinGUI(QWidget *parent):
  75     QMainWindow(parent),
  76     clientModel(0),
  77     walletModel(0),
  78     encryptWalletAction(0),
  79     lockWalletAction(0),
  80     unlockWalletAction(0),
  81     unlockWalletMiningAction(0),
  82     changePassphraseAction(0),
  83     aboutQtAction(0),
  84     trayIcon(0),
  85     notificator(0),
  86     rpcConsole(0)
  87 {
  88     resize(850, 550);
  89     setWindowTitle(tr("NovaCoin") + " - " + tr("Wallet"));
  90 #ifndef Q_OS_MAC
  91     qApp->setWindowIcon(QIcon(":icons/bitcoin"));
  92     setWindowIcon(QIcon(":icons/bitcoin"));
  93 #else
  94     setUnifiedTitleAndToolBarOnMac(true);
  95     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  96 #endif
  97     // Accept D&D of URIs
  98     setAcceptDrops(true);
  99
 100     // Create actions for the toolbar, menu bar and tray/dock icon
 101     createActions();
 102
 103     // Create application menu bar
 104     createMenuBar();
 105
 106     // Create the toolbars
 107     createToolBars();
 108
 109     // Create the tray icon (or setup the dock icon)
 110     createTrayIcon();
 111
 112     // Create tabs
 113     overviewPage = new OverviewPage();
 114
 115     transactionsPage = new QWidget(this);
 116     QVBoxLayout *vbox = new QVBoxLayout();
 117     transactionView = new TransactionView(this);
 118     vbox->addWidget(transactionView);
 119     transactionsPage->setLayout(vbox);
 120
 121     mintingPage = new QWidget(this);
 122     QVBoxLayout *vboxMinting = new QVBoxLayout();
 123     mintingView = new MintingView(this);
 124     vboxMinting->addWidget(mintingView);
 125     mintingPage->setLayout(vboxMinting);
 126
 127     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 128
 129     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 130
 131     sendCoinsPage = new SendCoinsDialog(this);
 132
 133     signVerifyMessageDialog = new SignVerifyMessageDialog(this);
 134
 135     multisigPage = new MultisigDialog(this);
 136
 137     centralWidget = new QStackedWidget(this);
 138     centralWidget->addWidget(overviewPage);
 139     centralWidget->addWidget(transactionsPage);
 140     centralWidget->addWidget(mintingPage);
 141     centralWidget->addWidget(addressBookPage);
 142     centralWidget->addWidget(receiveCoinsPage);
 143     centralWidget->addWidget(sendCoinsPage);
 144     setCentralWidget(centralWidget);
 145
 146     // Create status bar
 147     statusBar();
 148
 149     // Status bar notification icons
 150     QFrame *frameBlocks = new QFrame();
 151     frameBlocks->setContentsMargins(0,0,0,0);
 152     frameBlocks->setMinimumWidth(72);
 153     frameBlocks->setMaximumWidth(72);
 154     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 155     frameBlocksLayout->setContentsMargins(3,0,3,0);
 156     frameBlocksLayout->setSpacing(3);
 157     labelEncryptionIcon = new QLabel();
 158     labelMiningIcon = new QLabel();
 159     labelConnectionsIcon = new QLabel();
 160     labelBlocksIcon = new QLabel();
 161     frameBlocksLayout->addStretch();
 162     frameBlocksLayout->addWidget(labelEncryptionIcon);
 163     frameBlocksLayout->addStretch();
 164     frameBlocksLayout->addWidget(labelMiningIcon);
 165     frameBlocksLayout->addStretch();
 166     frameBlocksLayout->addWidget(labelConnectionsIcon);
 167     frameBlocksLayout->addStretch();
 168     frameBlocksLayout->addWidget(labelBlocksIcon);
 169     frameBlocksLayout->addStretch();
 170
 171     // Progress bar and label for blocks download
 172     progressBarLabel = new QLabel();
 173     progressBarLabel->setVisible(false);
 174     progressBar = new QProgressBar();
 175     progressBar->setAlignment(Qt::AlignCenter);
 176     progressBar->setVisible(false);
 177
 178     // Override style sheet for progress bar for styles that have a segmented progress bar,
 179     // as they make the text unreadable (workaround for issue #1071)
 180     // See https://qt-project.org/doc/qt-4.8/gallery.html
 181     QString curStyle = qApp->style()->metaObject()->className();
 182     if(curStyle == "QWindowsStyle" || curStyle == "QWindowsXPStyle")
 183     {
 184         progressBar->setStyleSheet("QProgressBar { background-color: #e8e8e8; border: 1px solid grey; border-radius: 7px; padding: 1px; text-align: center; } QProgressBar::chunk { background: QLinearGradient(x1: 0, y1: 0, x2: 1, y2: 0, stop: 0 #FF8000, stop: 1 orange); border-radius: 7px; margin: 0px; }");
 185     }
 186
 187     statusBar()->addWidget(progressBarLabel);
 188     statusBar()->addWidget(progressBar);
 189     statusBar()->addPermanentWidget(frameBlocks);
 190
 191     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 192
 193     // Clicking on a transaction on the overview page simply sends you to transaction history page
 194     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 195     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
 196
 197     // Double-clicking on a transaction on the transaction history page shows details
 198     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 199
 200     rpcConsole = new RPCConsole(0);
 201     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
 202
 203     // Clicking on "Verify Message" in the address book sends you to the verify message tab
 204     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
 205     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
 206     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 207
 208     gotoOverviewPage();
 209 }
 210
 211 BitcoinGUI::~BitcoinGUI()
 212 {
 213     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 214         trayIcon->hide();
 215 #ifdef Q_OS_MAC
 216     delete appMenuBar;
 217 #endif
 218
 219     delete rpcConsole;
 220 }
 221
 222 void BitcoinGUI::createActions()
 223 {
 224     QActionGroup *tabGroup = new QActionGroup(this);
 225
 226     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 227     overviewAction->setToolTip(tr("Show general overview of wallet"));
 228     overviewAction->setCheckable(true);
 229     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 230     tabGroup->addAction(overviewAction);
 231
 232     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 233     sendCoinsAction->setToolTip(tr("Send coins to a NovaCoin address"));
 234     sendCoinsAction->setCheckable(true);
 235     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 236     tabGroup->addAction(sendCoinsAction);
 237
 238     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 239     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 240     receiveCoinsAction->setCheckable(true);
 241     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 242     tabGroup->addAction(receiveCoinsAction);
 243
 244     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 245     historyAction->setToolTip(tr("Browse transaction history"));
 246     historyAction->setCheckable(true);
 247     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 248     tabGroup->addAction(historyAction);
 249
 250     mintingAction = new QAction(QIcon(":/icons/history"), tr("&Minting"), this);
 251     mintingAction->setToolTip(tr("Show your minting capacity"));
 252     mintingAction->setCheckable(true);
 253     mintingAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 254     tabGroup->addAction(mintingAction);
 255
 256     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 257     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 258     addressBookAction->setCheckable(true);
 259     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_6));
 260     tabGroup->addAction(addressBookAction);
 261
 262     multisigAction = new QAction(QIcon(":/icons/send"), tr("Multisig"), this);
 263     tabGroup->addAction(multisigAction);
 264
 265     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 266     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 267     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 268     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 269     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 270     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 271     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 272     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 273     connect(mintingAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 274     connect(mintingAction, SIGNAL(triggered()), this, SLOT(gotoMintingPage()));
 275     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 276     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 277     connect(multisigAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 278     connect(multisigAction, SIGNAL(triggered()), this, SLOT(gotoMultisigPage()));
 279
 280     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 281     quitAction->setToolTip(tr("Quit application"));
 282     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 283     quitAction->setMenuRole(QAction::QuitRole);
 284     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About NovaCoin"), this);
 285     aboutAction->setToolTip(tr("Show information about NovaCoin"));
 286     aboutAction->setMenuRole(QAction::AboutRole);
 287 #if QT_VERSION < 0x050000
 288     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 289 #else
 290     aboutQtAction = new QAction(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 291 #endif
 292     aboutQtAction->setToolTip(tr("Show information about Qt"));
 293     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 294     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 295     optionsAction->setToolTip(tr("Modify configuration options for NovaCoin"));
 296     optionsAction->setMenuRole(QAction::PreferencesRole);
 297     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
 298     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 299     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 300     encryptWalletAction->setCheckable(true);
 301     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 302     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 303     dumpWalletAction = new QAction(QIcon(":/icons/dump"), tr("&Dump Wallet..."), this);
 304     dumpWalletAction->setStatusTip(tr("Dump keys to a text file"));
 305     importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
 306     importWalletAction->setStatusTip(tr("Import keys into a wallet"));
 307     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 308     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 309     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
 310     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
 311
 312     lockWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Lock wallet"), this);
 313     lockWalletAction->setToolTip(tr("Lock wallet"));
 314     lockWalletAction->setCheckable(true);
 315
 316     unlockWalletAction = new QAction(QIcon(":/icons/lock_open"), tr("Unlo&ck wallet"), this);
 317     unlockWalletAction->setToolTip(tr("Unlock wallet"));
 318     unlockWalletAction->setCheckable(true);
 319
 320     unlockWalletMiningAction = new QAction(QIcon(":/icons/mining_active"), tr("Unlo&ck wallet for mining"), this);
 321     unlockWalletMiningAction->setToolTip(tr("Unlock wallet for mining"));
 322     unlockWalletMiningAction->setCheckable(true);
 323
 324     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 325     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 326     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 327     openRPCConsoleAction->setToolTip(tr("Open debugging and diagnostic console"));
 328
 329     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 330     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 331     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 332     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 333     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 334     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 335     connect(lockWalletAction, SIGNAL(triggered(bool)), this, SLOT(lockWallet()));
 336     connect(unlockWalletAction, SIGNAL(triggered(bool)), this, SLOT(unlockWallet()));
 337     connect(unlockWalletMiningAction, SIGNAL(triggered(bool)), this, SLOT(unlockWalletMining(bool)));
 338     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 339     connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
 340     connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 341     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 342     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 343     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 344 }
 345
 346 void BitcoinGUI::createMenuBar()
 347 {
 348 #ifdef Q_OS_MAC
 349     // Create a decoupled menu bar on Mac which stays even if the window is closed
 350     appMenuBar = new QMenuBar();
 351 #else
 352     // Get the main window's menu bar on other platforms
 353     appMenuBar = menuBar();
 354 #endif
 355
 356     // Configure the menus
 357     QMenu *file = appMenuBar->addMenu(tr("&File"));
 358     file->addAction(backupWalletAction);
 359     file->addSeparator();
 360     file->addAction(dumpWalletAction);
 361     file->addAction(importWalletAction);
 362     file->addAction(exportAction);
 363     file->addAction(signMessageAction);
 364     file->addAction(verifyMessageAction);
 365     file->addAction(multisigAction);
 366     file->addSeparator();
 367     file->addAction(quitAction);
 368
 369     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 370     QMenu *securityMenu = settings->addMenu(QIcon(":/icons/key"), tr("&Wallet security"));
 371     securityMenu->addAction(encryptWalletAction);
 372     securityMenu->addAction(changePassphraseAction);
 373     securityMenu->addAction(unlockWalletAction);
 374     securityMenu->addAction(unlockWalletMiningAction);
 375     securityMenu->addAction(lockWalletAction);
 376     settings->addAction(optionsAction);
 377
 378     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 379     help->addAction(openRPCConsoleAction);
 380     help->addSeparator();
 381     help->addAction(aboutAction);
 382     help->addAction(aboutQtAction);
 383 }
 384
 385 void BitcoinGUI::createToolBars()
 386 {
 387     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 388     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 389     toolbar->addAction(overviewAction);
 390     toolbar->addAction(sendCoinsAction);
 391     toolbar->addAction(receiveCoinsAction);
 392     toolbar->addAction(historyAction);
 393     toolbar->addAction(mintingAction);
 394     toolbar->addAction(addressBookAction);
 395
 396     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 397     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 398     toolbar2->addAction(exportAction);
 399     toolbar2->setVisible(false);
 400
 401 }
 402
 403 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 404 {
 405     this->clientModel = clientModel;
 406     if(clientModel)
 407     {
 408         // Replace some strings and icons, when using the testnet
 409         if(clientModel->isTestNet())
 410         {
 411             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 412 #ifndef Q_OS_MAC
 413             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 414             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 415 #else
 416             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 417 #endif
 418             if(trayIcon)
 419             {
 420                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 421                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 422                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 423             }
 424
 425             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 426         }
 427
 428         // Keep up to date with client
 429         setNumConnections(clientModel->getNumConnections());
 430         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 431
 432         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 433         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 434
 435         QTimer *timer = new QTimer(this);
 436         connect(timer, SIGNAL(timeout()), this, SLOT(updateMining()));
 437         timer->start(10*1000); //10 seconds
 438
 439         // Report errors from network/worker thread
 440         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 441
 442         rpcConsole->setClientModel(clientModel);
 443         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 444         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 445     }
 446 }
 447
 448 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 449 {
 450     this->walletModel = walletModel;
 451     if(walletModel)
 452     {
 453         // Report errors from wallet thread
 454         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 455
 456         // Put transaction list in tabs
 457         transactionView->setModel(walletModel);
 458         mintingView->setModel(walletModel);
 459
 460         overviewPage->setModel(walletModel);
 461         addressBookPage->setModel(walletModel->getAddressTableModel());
 462         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 463         sendCoinsPage->setModel(walletModel);
 464         signVerifyMessageDialog->setModel(walletModel);
 465         multisigPage->setModel(walletModel);
 466
 467         setEncryptionStatus(walletModel->getEncryptionStatus());
 468         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 469         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 470
 471         // Balloon pop-up for new transaction
 472         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 473                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 474
 475         // Ask for passphrase if needed
 476         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 477     }
 478 }
 479
 480 void BitcoinGUI::createTrayIcon()
 481 {
 482     QMenu *trayIconMenu;
 483 #ifndef Q_OS_MAC
 484     trayIcon = new QSystemTrayIcon(this);
 485     trayIconMenu = new QMenu(this);
 486     trayIcon->setContextMenu(trayIconMenu);
 487     trayIcon->setToolTip(tr("NovaCoin client"));
 488     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 489     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 490             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 491     trayIcon->show();
 492 #else
 493     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 494     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 495     dockIconHandler->setMainWindow((QMainWindow *)this);
 496     trayIconMenu = dockIconHandler->dockMenu();
 497 #endif
 498
 499     // Configuration of the tray icon (or dock icon) icon menu
 500     trayIconMenu->addAction(toggleHideAction);
 501     trayIconMenu->addSeparator();
 502     trayIconMenu->addAction(sendCoinsAction);
 503     trayIconMenu->addAction(multisigAction);
 504     trayIconMenu->addAction(receiveCoinsAction);
 505     trayIconMenu->addSeparator();
 506     trayIconMenu->addAction(signMessageAction);
 507     trayIconMenu->addAction(verifyMessageAction);
 508     trayIconMenu->addSeparator();
 509     trayIconMenu->addAction(optionsAction);
 510     trayIconMenu->addAction(openRPCConsoleAction);
 511 #ifndef Q_OS_MAC
 512     // This is built-in on Mac
 513     trayIconMenu->addSeparator();
 514     trayIconMenu->addAction(quitAction);
 515 #endif
 516     notificator = new Notificator(QApplication::applicationName(), trayIcon, this);
 517 }
 518
 519 #ifndef Q_OS_MAC
 520 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 521 {
 522     if(reason == QSystemTrayIcon::Trigger)
 523     {
 524         // Click on system tray icon triggers show/hide of the main window
 525         toggleHideAction->trigger();
 526     }
 527 }
 528 #endif
 529
 530 void BitcoinGUI::optionsClicked()
 531 {
 532     if(!clientModel || !clientModel->getOptionsModel())
 533         return;
 534     OptionsDialog dlg;
 535     dlg.setModel(clientModel->getOptionsModel());
 536     dlg.exec();
 537 }
 538
 539 void BitcoinGUI::aboutClicked()
 540 {
 541     AboutDialog dlg;
 542     dlg.setModel(clientModel);
 543     dlg.exec();
 544 }
 545
 546 void BitcoinGUI::setNumConnections(int count)
 547 {
 548     QString icon;
 549     switch(count)
 550     {
 551     case 0: icon = ":/icons/connect_0"; break;
 552     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 553     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 554     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 555     default: icon = ":/icons/connect_4"; break;
 556     }
 557     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 558     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 559 }
 560
 561 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 562 {
 563     // don't show / hide progress bar and its label if we have no connection to the network
 564     if (!clientModel || clientModel->getNumConnections() == 0)
 565     {
 566         progressBarLabel->setVisible(false);
 567         progressBar->setVisible(false);
 568
 569         return;
 570     }
 571
 572     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 573     QString tooltip;
 574
 575     if(count < nTotalBlocks)
 576     {
 577         int nRemainingBlocks = nTotalBlocks - count;
 578         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 579
 580         if (strStatusBarWarnings.isEmpty())
 581         {
 582             progressBarLabel->setText(tr("Synchronizing with network..."));
 583             progressBarLabel->setVisible(true);
 584             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 585             progressBar->setMaximum(nTotalBlocks);
 586             progressBar->setValue(count);
 587             progressBar->setVisible(true);
 588         }
 589
 590         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 591     }
 592     else
 593     {
 594         if (strStatusBarWarnings.isEmpty())
 595             progressBarLabel->setVisible(false);
 596
 597         progressBar->setVisible(false);
 598         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 599     }
 600
 601     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 602     if (!strStatusBarWarnings.isEmpty())
 603     {
 604         progressBarLabel->setText(strStatusBarWarnings);
 605         progressBarLabel->setVisible(true);
 606         progressBar->setVisible(false);
 607     }
 608
 609     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 610     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 611     QString text;
 612
 613     // Represent time from last generated block in human readable text
 614     if(secs <= 0)
 615     {
 616         // Fully up to date. Leave text empty.
 617     }
 618     else if(secs < 60)
 619     {
 620         text = tr("%n second(s) ago","",secs);
 621     }
 622     else if(secs < 60*60)
 623     {
 624         text = tr("%n minute(s) ago","",secs/60);
 625     }
 626     else if(secs < 24*60*60)
 627     {
 628         text = tr("%n hour(s) ago","",secs/(60*60));
 629     }
 630     else
 631     {
 632         text = tr("%n day(s) ago","",secs/(60*60*24));
 633     }
 634
 635     // Set icon state: spinning if catching up, tick otherwise
 636     if(secs < 90*60 && count >= nTotalBlocks)
 637     {
 638         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 639         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 640
 641         overviewPage->showOutOfSyncWarning(false);
 642     }
 643     else
 644     {
 645         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 646         labelBlocksIcon->setMovie(syncIconMovie);
 647         syncIconMovie->start();
 648
 649         overviewPage->showOutOfSyncWarning(true);
 650     }
 651
 652     if(!text.isEmpty())
 653     {
 654         tooltip += QString("<br>");
 655         tooltip += tr("Last received block was generated %1.").arg(text);
 656     }
 657
 658     // Don't word-wrap this (fixed-width) tooltip
 659     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 660
 661     labelBlocksIcon->setToolTip(tooltip);
 662     progressBarLabel->setToolTip(tooltip);
 663     progressBar->setToolTip(tooltip);
 664 }
 665
 666 void BitcoinGUI::updateMining()
 667 {
 668    if(!walletModel)
 669       return;
 670
 671     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 672
 673     if (!clientModel->getNumConnections())
 674     {
 675         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 676         return;
 677     }
 678
 679     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 680     {
 681         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 682         return;
 683     }
 684
 685     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 686     {
 687         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 688         return;
 689     }
 690
 691     float nKernelsRate = 0, nCoinDaysRate = 0;
 692     walletModel->getStakeStats(nKernelsRate, nCoinDaysRate);
 693
 694     if (nKernelsRate > 0)
 695     {
 696         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 697
 698         uint64_t nNetworkWeight = clientModel->getPoSKernelPS();
 699 /*
 700         double dDifficulty = clientModel->getDifficulty(true);
 701         QString msg;
 702
 703         int nApproxTime = 4294967297 * dDifficulty / nTotalWeight;
 704
 705         if (nApproxTime < 60)
 706             msg = tr("%n second(s)", "", nApproxTime);
 707         else if (nApproxTime < 60*60)
 708             msg = tr("%n minute(s)", "", nApproxTime / 60);
 709         else if (nApproxTime < 24*60*60)
 710             msg = tr("%n hour(s)", "", nApproxTime / 3600);
 711         else
 712             msg = tr("%n day(s)", "", nApproxTime / 86400);
 713
 714         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));
 715 */
 716
 717         labelMiningIcon->setToolTip(QString("<nobr>")+tr("Stake miner is active<br>Kernel rate is %1 k/s<br>CD rate is %2 CD/s<br>Network weight is %3").arg(nKernelsRate).arg(nCoinDaysRate).arg(nNetworkWeight)+QString("<\nobr>"));
 718     }
 719     else
 720         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 721 }
 722
 723 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 724 {
 725     // Report errors from network/worker thread
 726     if(modal)
 727     {
 728         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 729     } else {
 730         notificator->notify(Notificator::Critical, title, message);
 731     }
 732 }
 733
 734 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 735 {
 736     QString strTitle = tr("NovaCoin") + " - ";
 737     // Default to information icon
 738     int nMBoxIcon = QMessageBox::Information;
 739     int nNotifyIcon = Notificator::Information;
 740
 741
 742     // Check for usage of predefined title
 743     switch (style) {
 744     case CClientUIInterface::MSG_ERROR:
 745         strTitle += tr("Error");
 746         break;
 747     case CClientUIInterface::MSG_WARNING:
 748         strTitle += tr("Warning");
 749         break;
 750     case CClientUIInterface::MSG_INFORMATION:
 751         strTitle += tr("Information");
 752         break;
 753     default:
 754         strTitle += title; // Use supplied title
 755     }
 756
 757     // Check for error/warning icon
 758     if (style & CClientUIInterface::ICON_ERROR) {
 759         nMBoxIcon = QMessageBox::Critical;
 760         nNotifyIcon = Notificator::Critical;
 761     }
 762     else if (style & CClientUIInterface::ICON_WARNING) {
 763         nMBoxIcon = QMessageBox::Warning;
 764         nNotifyIcon = Notificator::Warning;
 765     }
 766
 767     // Display message
 768     if (style & CClientUIInterface::MODAL) {
 769         // Check for buttons, use OK as default, if none was supplied
 770         QMessageBox::StandardButton buttons;
 771         buttons = QMessageBox::Ok;
 772
 773         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 774
 775         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 776
 777         mBox.exec();
 778     }
 779     else
 780         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 781 }
 782
 783
 784 void BitcoinGUI::changeEvent(QEvent *e)
 785 {
 786     QMainWindow::changeEvent(e);
 787 #ifndef Q_OS_MAC // Ignored on Mac
 788     if(e->type() == QEvent::WindowStateChange)
 789     {
 790         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 791         {
 792             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 793             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 794             {
 795                 QTimer::singleShot(0, this, SLOT(hide()));
 796                 e->ignore();
 797             }
 798         }
 799     }
 800 #endif
 801 }
 802
 803 void BitcoinGUI::closeEvent(QCloseEvent *event)
 804 {
 805     if(clientModel)
 806     {
 807 #ifndef Q_OS_MAC // Ignored on Mac
 808         if(!clientModel->getOptionsModel()->getMinimizeOnClose())
 809         {
 810             qApp->quit();
 811         }
 812 #endif
 813     }
 814     // close rpcConsole in case it was open to make some space for the shutdown window
 815     rpcConsole->close();
 816
 817     QMainWindow::closeEvent(event);
 818 }
 819
 820 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 821 {
 822     QString strMessage =
 823         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 824           "which goes to the nodes that process your transaction and helps to support the network.  "
 825           "Do you want to pay the fee?").arg(
 826                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 827     QMessageBox::StandardButton retval = QMessageBox::question(
 828           this, tr("Confirm transaction fee"), strMessage,
 829           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 830     *payFee = (retval == QMessageBox::Yes);
 831 }
 832
 833 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 834 {
 835     if(!walletModel || !clientModel)
 836         return;
 837     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 838     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 839                     .data(Qt::EditRole).toULongLong();
 840     if(!clientModel->inInitialBlockDownload())
 841     {
 842         // On new transaction, make an info balloon
 843         // Unless the initial block download is in progress, to prevent balloon-spam
 844         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 845                         .data().toString();
 846         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 847                         .data().toString();
 848         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 849                         .data().toString();
 850         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 851                             TransactionTableModel::ToAddress, parent)
 852                         .data(Qt::DecorationRole));
 853
 854         notificator->notify(Notificator::Information,
 855                             (amount)<0 ? tr("Sent transaction") :
 856                                          tr("Incoming transaction"),
 857                               tr("Date: %1\n"
 858                                  "Amount: %2\n"
 859                                  "Type: %3\n"
 860                                  "Address: %4\n")
 861                               .arg(date)
 862                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 863                               .arg(type)
 864                               .arg(address), icon);
 865     }
 866 }
 867
 868 void BitcoinGUI::gotoOverviewPage()
 869 {
 870     overviewAction->setChecked(true);
 871     centralWidget->setCurrentWidget(overviewPage);
 872
 873     exportAction->setEnabled(false);
 874     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 875 }
 876
 877 void BitcoinGUI::gotoHistoryPage()
 878 {
 879     historyAction->setChecked(true);
 880     centralWidget->setCurrentWidget(transactionsPage);
 881
 882     exportAction->setEnabled(true);
 883     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 884     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 885 }
 886
 887 void BitcoinGUI::gotoMintingPage()
 888 {
 889     mintingAction->setChecked(true);
 890     centralWidget->setCurrentWidget(mintingPage);
 891
 892     exportAction->setEnabled(true);
 893     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 894     connect(exportAction, SIGNAL(triggered()), mintingView, SLOT(exportClicked()));
 895 }
 896
 897
 898 void BitcoinGUI::gotoAddressBookPage()
 899 {
 900     addressBookAction->setChecked(true);
 901     centralWidget->setCurrentWidget(addressBookPage);
 902
 903     exportAction->setEnabled(true);
 904     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 905     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 906 }
 907
 908 void BitcoinGUI::gotoReceiveCoinsPage()
 909 {
 910     receiveCoinsAction->setChecked(true);
 911     centralWidget->setCurrentWidget(receiveCoinsPage);
 912
 913     exportAction->setEnabled(true);
 914     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 915     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 916 }
 917
 918 void BitcoinGUI::gotoSendCoinsPage()
 919 {
 920     sendCoinsAction->setChecked(true);
 921     centralWidget->setCurrentWidget(sendCoinsPage);
 922
 923     exportAction->setEnabled(false);
 924     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 925 }
 926
 927 void BitcoinGUI::gotoSignMessageTab(QString addr)
 928 {
 929     // call show() in showTab_SM()
 930     signVerifyMessageDialog->showTab_SM(true);
 931
 932     if(!addr.isEmpty())
 933         signVerifyMessageDialog->setAddress_SM(addr);
 934 }
 935
 936 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 937 {
 938     // call show() in showTab_VM()
 939     signVerifyMessageDialog->showTab_VM(true);
 940
 941     if(!addr.isEmpty())
 942         signVerifyMessageDialog->setAddress_VM(addr);
 943 }
 944
 945 void BitcoinGUI::gotoMultisigPage()
 946 {
 947     multisigPage->show();
 948     multisigPage->setFocus();
 949 }
 950
 951 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 952 {
 953     // Accept only URIs
 954     if(event->mimeData()->hasUrls())
 955         event->acceptProposedAction();
 956 }
 957
 958 void BitcoinGUI::dropEvent(QDropEvent *event)
 959 {
 960     if(event->mimeData()->hasUrls())
 961     {
 962         int nValidUrisFound = 0;
 963         QList<QUrl> uris = event->mimeData()->urls();
 964         foreach(const QUrl &uri, uris)
 965         {
 966             if (sendCoinsPage->handleURI(uri.toString()))
 967                 nValidUrisFound++;
 968         }
 969
 970         // if valid URIs were found
 971         if (nValidUrisFound)
 972             gotoSendCoinsPage();
 973         else
 974             notificator->notify(Notificator::Warning, tr("URI handling"), tr("URI can not be parsed! This can be caused by an invalid NovaCoin address or malformed URI parameters."));
 975     }
 976
 977     event->acceptProposedAction();
 978 }
 979
 980 void BitcoinGUI::handleURI(QString strURI)
 981 {
 982     // URI has to be valid
 983     if (sendCoinsPage->handleURI(strURI))
 984     {
 985         showNormalIfMinimized();
 986         gotoSendCoinsPage();
 987     }
 988     else
 989         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."));
 990 }
 991
 992 void BitcoinGUI::setEncryptionStatus(int status)
 993 {
 994     switch(status)
 995     {
 996     case WalletModel::Unencrypted:
 997         labelEncryptionIcon->hide();
 998         encryptWalletAction->setChecked(false);
 999         changePassphraseAction->setEnabled(false);
1000         lockWalletAction->setEnabled(false);
1001         unlockWalletAction->setEnabled(false);
1002         unlockWalletMiningAction->setEnabled(false);
1003         encryptWalletAction->setEnabled(true);
1004         break;
1005     case WalletModel::Unlocked:
1006         labelEncryptionIcon->show();
1007         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1008         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
1009         encryptWalletAction->setChecked(true);
1010         changePassphraseAction->setEnabled(true);
1011         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1012
1013         lockWalletAction->setEnabled(true);
1014         lockWalletAction->setChecked(false);
1015         unlockWalletAction->setEnabled(false);
1016         unlockWalletMiningAction->setEnabled(false);
1017
1018         if (fWalletUnlockMintOnly)
1019             unlockWalletMiningAction->setChecked(true);
1020         else
1021             unlockWalletAction->setChecked(true);
1022
1023         break;
1024     case WalletModel::Locked:
1025         labelEncryptionIcon->show();
1026         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1027         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1028         encryptWalletAction->setChecked(true);
1029         changePassphraseAction->setEnabled(true);
1030         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1031
1032         lockWalletAction->setChecked(true);
1033         unlockWalletAction->setChecked(false);
1034         unlockWalletMiningAction->setChecked(false);
1035
1036         lockWalletAction->setEnabled(false);
1037         unlockWalletAction->setEnabled(true);
1038         unlockWalletMiningAction->setEnabled(true);
1039         break;
1040     }
1041 }
1042
1043 void BitcoinGUI::encryptWallet(bool status)
1044 {
1045     if(!walletModel)
1046         return;
1047     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
1048                                      AskPassphraseDialog::Decrypt, this);
1049     dlg.setModel(walletModel);
1050     dlg.exec();
1051
1052     setEncryptionStatus(walletModel->getEncryptionStatus());
1053 }
1054
1055 void BitcoinGUI::unlockWalletMining(bool status)
1056 {
1057     if(!walletModel)
1058         return;
1059
1060     // Unlock wallet when requested by wallet model
1061     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1062     {
1063         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1064         dlg.setModel(walletModel);
1065         dlg.exec();
1066     }
1067 }
1068
1069 void BitcoinGUI::backupWallet()
1070 {
1071 #if QT_VERSION < 0x050000
1072     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1073 #else
1074     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1075 #endif
1076     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1077     if(!filename.isEmpty()) {
1078         if(!walletModel->backupWallet(filename)) {
1079             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1080         }
1081     }
1082 }
1083
1084 void BitcoinGUI::dumpWallet()
1085 {
1086    if(!walletModel)
1087       return;
1088
1089    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1090    if(!ctx.isValid())
1091    {
1092        // Unlock wallet failed or was cancelled
1093        return;
1094    }
1095
1096 #if QT_VERSION < 0x050000
1097     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1098 #else
1099     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1100 #endif
1101     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1102     if(!filename.isEmpty()) {
1103         if(!walletModel->dumpWallet(filename)) {
1104             error(tr("Dump failed"),
1105                          tr("An error happened while trying to save the keys to your location.\n"
1106                             "Keys were not saved.")
1107                       ,CClientUIInterface::MSG_ERROR);
1108         }
1109         else
1110           message(tr("Dump successful"),
1111                        tr("Keys were saved to this file:\n%2")
1112                        .arg(filename)
1113                       ,CClientUIInterface::MSG_INFORMATION);
1114     }
1115 }
1116
1117 void BitcoinGUI::importWallet()
1118 {
1119    if(!walletModel)
1120       return;
1121
1122    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1123    if(!ctx.isValid())
1124    {
1125        // Unlock wallet failed or was cancelled
1126        return;
1127    }
1128
1129 #if QT_VERSION < 0x050000
1130     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1131 #else
1132     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1133 #endif
1134     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1135     if(!filename.isEmpty()) {
1136         if(!walletModel->importWallet(filename)) {
1137             error(tr("Import Failed"),
1138                          tr("An error happened while trying to import the keys.\n"
1139                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1140                          .arg(filename)
1141                       ,CClientUIInterface::MSG_ERROR);
1142         }
1143         else
1144           message(tr("Import Successful"),
1145                        tr("All keys from:\n %1,\n were imported into your wallet.")
1146                        .arg(filename)
1147                       ,CClientUIInterface::MSG_INFORMATION);
1148     }
1149 }
1150
1151
1152 void BitcoinGUI::changePassphrase()
1153 {
1154     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1155     dlg.setModel(walletModel);
1156     dlg.exec();
1157 }
1158
1159 void BitcoinGUI::unlockWallet()
1160 {
1161     if(!walletModel)
1162         return;
1163     // Unlock wallet when requested by wallet model
1164     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1165     {
1166         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1167         dlg.setModel(walletModel);
1168         dlg.exec();
1169     }
1170 }
1171
1172 void BitcoinGUI::lockWallet()
1173 {
1174     if(!walletModel)
1175         return;
1176
1177     walletModel->setWalletLocked(true);
1178 }
1179
1180 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1181 {
1182     // activateWindow() (sometimes) helps with keyboard focus on Windows
1183     if (isHidden())
1184     {
1185         // Make sure the window is not minimized
1186         setWindowState(windowState() & (~Qt::WindowMinimized | Qt::WindowActive));
1187         // Then show it
1188         show();
1189         raise();
1190         activateWindow();
1191     }
1192     else if (isMinimized())
1193     {
1194         showNormal();
1195         raise();
1196         activateWindow();
1197     }
1198     else if (GUIUtil::isObscured(this))
1199     {
1200         raise();
1201         activateWindow();
1202         if(fToggleHidden)
1203         {
1204             Sleep(1);
1205             if (GUIUtil::isObscured(this))
1206                 hide();
1207         }
1208     }
1209     else if(fToggleHidden)
1210         hide();
1211 }
1212
1213 void BitcoinGUI::toggleHidden()
1214 {
1215     showNormalIfMinimized(true);
1216 }