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     aboutDialog(0)
  88 {
  89     resize(850, 550);
  90     setWindowTitle(tr("NovaCoin") + " - " + tr("Wallet"));
  91 #ifndef Q_OS_MAC
  92     qApp->setWindowIcon(QIcon(":icons/bitcoin"));
  93     setWindowIcon(QIcon(":icons/bitcoin"));
  94 #else
  95     setUnifiedTitleAndToolBarOnMac(true);
  96     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  97 #endif
  98     // Accept D&D of URIs
  99     setAcceptDrops(true);
 100
 101     // Create actions for the toolbar, menu bar and tray/dock icon
 102     createActions();
 103
 104     // Create application menu bar
 105     createMenuBar();
 106
 107     // Create the toolbars
 108     createToolBars();
 109
 110     // Create the tray icon (or setup the dock icon)
 111     createTrayIcon();
 112
 113     // Create tabs
 114     overviewPage = new OverviewPage();
 115
 116     transactionsPage = new QWidget(this);
 117     QVBoxLayout *vbox = new QVBoxLayout();
 118     transactionView = new TransactionView(this);
 119     vbox->addWidget(transactionView);
 120     transactionsPage->setLayout(vbox);
 121
 122     mintingPage = new QWidget(this);
 123     QVBoxLayout *vboxMinting = new QVBoxLayout();
 124     mintingView = new MintingView(this);
 125     vboxMinting->addWidget(mintingView);
 126     mintingPage->setLayout(vboxMinting);
 127
 128     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 129
 130     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 131
 132     sendCoinsPage = new SendCoinsDialog(this);
 133
 134     signVerifyMessageDialog = new SignVerifyMessageDialog(this);
 135
 136     multisigPage = new MultisigDialog(this);
 137
 138     centralWidget = new QStackedWidget(this);
 139     centralWidget->addWidget(overviewPage);
 140     centralWidget->addWidget(transactionsPage);
 141     centralWidget->addWidget(mintingPage);
 142     centralWidget->addWidget(addressBookPage);
 143     centralWidget->addWidget(receiveCoinsPage);
 144     centralWidget->addWidget(sendCoinsPage);
 145     setCentralWidget(centralWidget);
 146
 147     // Create status bar
 148     statusBar();
 149
 150     // Status bar notification icons
 151     QFrame *frameBlocks = new QFrame();
 152     frameBlocks->setContentsMargins(0,0,0,0);
 153     frameBlocks->setMinimumWidth(72);
 154     frameBlocks->setMaximumWidth(72);
 155     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 156     frameBlocksLayout->setContentsMargins(3,0,3,0);
 157     frameBlocksLayout->setSpacing(3);
 158     labelEncryptionIcon = new QLabel();
 159     labelMiningIcon = new QLabel();
 160     labelConnectionsIcon = new QLabel();
 161     labelBlocksIcon = new QLabel();
 162     frameBlocksLayout->addStretch();
 163     frameBlocksLayout->addWidget(labelEncryptionIcon);
 164     frameBlocksLayout->addStretch();
 165     frameBlocksLayout->addWidget(labelMiningIcon);
 166     frameBlocksLayout->addStretch();
 167     frameBlocksLayout->addWidget(labelConnectionsIcon);
 168     frameBlocksLayout->addStretch();
 169     frameBlocksLayout->addWidget(labelBlocksIcon);
 170     frameBlocksLayout->addStretch();
 171
 172     // Progress bar and label for blocks download
 173     progressBarLabel = new QLabel();
 174     progressBarLabel->setVisible(false);
 175     progressBar = new QProgressBar();
 176     progressBar->setAlignment(Qt::AlignCenter);
 177     progressBar->setVisible(false);
 178
 179     // Override style sheet for progress bar for styles that have a segmented progress bar,
 180     // as they make the text unreadable (workaround for issue #1071)
 181     // See https://qt-project.org/doc/qt-4.8/gallery.html
 182     QString curStyle = qApp->style()->metaObject()->className();
 183     if(curStyle == "QWindowsStyle" || curStyle == "QWindowsXPStyle")
 184     {
 185         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; }");
 186     }
 187
 188     statusBar()->addWidget(progressBarLabel);
 189     statusBar()->addWidget(progressBar);
 190     statusBar()->addPermanentWidget(frameBlocks);
 191
 192     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 193
 194     // Clicking on a transaction on the overview page simply sends you to transaction history page
 195     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 196     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
 197
 198     // Double-clicking on a transaction on the transaction history page shows details
 199     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 200
 201     rpcConsole = new RPCConsole(0);
 202     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
 203
 204     aboutDialog = new AboutDialog(0);
 205
 206     // Clicking on "Verify Message" in the address book sends you to the verify message tab
 207     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
 208     // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
 209     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 210
 211     gotoOverviewPage();
 212 }
 213
 214 BitcoinGUI::~BitcoinGUI()
 215 {
 216     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 217         trayIcon->hide();
 218 #ifdef Q_OS_MAC
 219     delete appMenuBar;
 220 #endif
 221
 222     delete rpcConsole;
 223     delete aboutDialog;
 224 }
 225
 226 void BitcoinGUI::createActions()
 227 {
 228     QActionGroup *tabGroup = new QActionGroup(this);
 229
 230     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 231     overviewAction->setToolTip(tr("Show general overview of wallet"));
 232     overviewAction->setCheckable(true);
 233     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 234     tabGroup->addAction(overviewAction);
 235
 236     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 237     sendCoinsAction->setToolTip(tr("Send coins to a NovaCoin address"));
 238     sendCoinsAction->setCheckable(true);
 239     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 240     tabGroup->addAction(sendCoinsAction);
 241
 242     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 243     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 244     receiveCoinsAction->setCheckable(true);
 245     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 246     tabGroup->addAction(receiveCoinsAction);
 247
 248     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 249     historyAction->setToolTip(tr("Browse transaction history"));
 250     historyAction->setCheckable(true);
 251     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 252     tabGroup->addAction(historyAction);
 253
 254     mintingAction = new QAction(QIcon(":/icons/history"), tr("&Minting"), this);
 255     mintingAction->setToolTip(tr("Show your minting capacity"));
 256     mintingAction->setCheckable(true);
 257     mintingAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 258     tabGroup->addAction(mintingAction);
 259
 260     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 261     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 262     addressBookAction->setCheckable(true);
 263     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_6));
 264     tabGroup->addAction(addressBookAction);
 265
 266     multisigAction = new QAction(QIcon(":/icons/send"), tr("Multisig"), this);
 267     tabGroup->addAction(multisigAction);
 268
 269     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 270     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 271     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 272     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 273     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 274     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 275     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 276     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 277     connect(mintingAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 278     connect(mintingAction, SIGNAL(triggered()), this, SLOT(gotoMintingPage()));
 279     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 280     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 281     connect(multisigAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 282     connect(multisigAction, SIGNAL(triggered()), this, SLOT(gotoMultisigPage()));
 283
 284     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 285     quitAction->setToolTip(tr("Quit application"));
 286     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 287     quitAction->setMenuRole(QAction::QuitRole);
 288     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About NovaCoin"), this);
 289     aboutAction->setToolTip(tr("Show information about NovaCoin"));
 290     aboutAction->setMenuRole(QAction::AboutRole);
 291 #if QT_VERSION < 0x050000
 292     aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 293 #else
 294     aboutQtAction = new QAction(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
 295 #endif
 296     aboutQtAction->setToolTip(tr("Show information about Qt"));
 297     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 298     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 299     optionsAction->setToolTip(tr("Modify configuration options for NovaCoin"));
 300     optionsAction->setMenuRole(QAction::PreferencesRole);
 301     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("&Show / Hide"), this);
 302     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 303     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 304     encryptWalletAction->setCheckable(true);
 305     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 306     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 307     dumpWalletAction = new QAction(QIcon(":/icons/dump"), tr("&Dump Wallet..."), this);
 308     dumpWalletAction->setStatusTip(tr("Dump keys to a text file"));
 309     importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
 310     importWalletAction->setStatusTip(tr("Import keys into a wallet"));
 311     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 312     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 313     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
 314     verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
 315
 316     lockWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Lock wallet"), this);
 317     lockWalletAction->setToolTip(tr("Lock wallet"));
 318     lockWalletAction->setCheckable(true);
 319
 320     unlockWalletAction = new QAction(QIcon(":/icons/lock_open"), tr("Unlo&ck wallet"), this);
 321     unlockWalletAction->setToolTip(tr("Unlock wallet"));
 322     unlockWalletAction->setCheckable(true);
 323
 324     unlockWalletMiningAction = new QAction(QIcon(":/icons/mining_active"), tr("Unlo&ck wallet for mining"), this);
 325     unlockWalletMiningAction->setToolTip(tr("Unlock wallet for mining"));
 326     unlockWalletMiningAction->setCheckable(true);
 327
 328     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 329     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 330     openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 331     openRPCConsoleAction->setToolTip(tr("Open debugging and diagnostic console"));
 332
 333     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 334     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 335     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 336     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 337     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 338     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 339     connect(lockWalletAction, SIGNAL(triggered(bool)), this, SLOT(lockWallet()));
 340     connect(unlockWalletAction, SIGNAL(triggered(bool)), this, SLOT(unlockWallet()));
 341     connect(unlockWalletMiningAction, SIGNAL(triggered(bool)), this, SLOT(unlockWalletMining(bool)));
 342     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 343     connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
 344     connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 345     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 346     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 347     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 348 }
 349
 350 void BitcoinGUI::createMenuBar()
 351 {
 352 #ifdef Q_OS_MAC
 353     // Create a decoupled menu bar on Mac which stays even if the window is closed
 354     appMenuBar = new QMenuBar();
 355 #else
 356     // Get the main window's menu bar on other platforms
 357     appMenuBar = menuBar();
 358 #endif
 359
 360     // Configure the menus
 361     QMenu *file = appMenuBar->addMenu(tr("&File"));
 362     file->addAction(backupWalletAction);
 363     file->addSeparator();
 364     file->addAction(dumpWalletAction);
 365     file->addAction(importWalletAction);
 366     file->addAction(exportAction);
 367     file->addAction(signMessageAction);
 368     file->addAction(verifyMessageAction);
 369     file->addAction(multisigAction);
 370     file->addSeparator();
 371     file->addAction(quitAction);
 372
 373     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 374     QMenu *securityMenu = settings->addMenu(QIcon(":/icons/key"), tr("&Wallet security"));
 375     securityMenu->addAction(encryptWalletAction);
 376     securityMenu->addAction(changePassphraseAction);
 377     securityMenu->addAction(unlockWalletAction);
 378     securityMenu->addAction(unlockWalletMiningAction);
 379     securityMenu->addAction(lockWalletAction);
 380     settings->addAction(optionsAction);
 381
 382     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 383     help->addAction(openRPCConsoleAction);
 384     help->addSeparator();
 385     help->addAction(aboutAction);
 386     help->addAction(aboutQtAction);
 387 }
 388
 389 void BitcoinGUI::createToolBars()
 390 {
 391     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 392     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 393     toolbar->addAction(overviewAction);
 394     toolbar->addAction(sendCoinsAction);
 395     toolbar->addAction(receiveCoinsAction);
 396     toolbar->addAction(historyAction);
 397     toolbar->addAction(mintingAction);
 398     toolbar->addAction(addressBookAction);
 399
 400     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 401     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 402     toolbar2->addAction(exportAction);
 403     toolbar2->setVisible(false);
 404
 405 }
 406
 407 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 408 {
 409     this->clientModel = clientModel;
 410     if(clientModel)
 411     {
 412         // Replace some strings and icons, when using the testnet
 413         if(clientModel->isTestNet())
 414         {
 415             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
 416 #ifndef Q_OS_MAC
 417             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 418             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 419 #else
 420             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 421 #endif
 422             if(trayIcon)
 423             {
 424                 trayIcon->setToolTip(tr("NovaCoin client") + QString(" ") + tr("[testnet]"));
 425                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 426                 toggleHideAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 427             }
 428
 429             aboutAction->setIcon(QIcon(":/icons/toolbar_testnet"));
 430         }
 431
 432         // Keep up to date with client
 433         setNumConnections(clientModel->getNumConnections());
 434         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 435
 436         setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
 437         connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
 438
 439         QTimer *timer = new QTimer(this);
 440         connect(timer, SIGNAL(timeout()), this, SLOT(updateMining()));
 441         timer->start(10*1000); //10 seconds
 442
 443         // Report errors from network/worker thread
 444         connect(clientModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 445
 446         rpcConsole->setClientModel(clientModel);
 447         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
 448         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
 449     }
 450 }
 451
 452 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 453 {
 454     this->walletModel = walletModel;
 455     if(walletModel)
 456     {
 457         // Report errors from wallet thread
 458         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 459
 460         // Put transaction list in tabs
 461         transactionView->setModel(walletModel);
 462         mintingView->setModel(walletModel);
 463
 464         overviewPage->setModel(walletModel);
 465         addressBookPage->setModel(walletModel->getAddressTableModel());
 466         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 467         sendCoinsPage->setModel(walletModel);
 468         signVerifyMessageDialog->setModel(walletModel);
 469         multisigPage->setModel(walletModel);
 470
 471         setEncryptionStatus(walletModel->getEncryptionStatus());
 472         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 473         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(updateMining()));
 474
 475         // Balloon pop-up for new transaction
 476         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 477                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 478
 479         // Ask for passphrase if needed
 480         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 481     }
 482 }
 483
 484 void BitcoinGUI::createTrayIcon()
 485 {
 486     QMenu *trayIconMenu;
 487 #ifndef Q_OS_MAC
 488     trayIcon = new QSystemTrayIcon(this);
 489     trayIconMenu = new QMenu(this);
 490     trayIcon->setContextMenu(trayIconMenu);
 491     trayIcon->setToolTip(tr("NovaCoin client"));
 492     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 493     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 494             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 495     trayIcon->show();
 496 #else
 497     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 498     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 499     dockIconHandler->setMainWindow((QMainWindow *)this);
 500     trayIconMenu = dockIconHandler->dockMenu();
 501 #endif
 502
 503     // Configuration of the tray icon (or dock icon) icon menu
 504     trayIconMenu->addAction(toggleHideAction);
 505     trayIconMenu->addSeparator();
 506     trayIconMenu->addAction(sendCoinsAction);
 507     trayIconMenu->addAction(multisigAction);
 508     trayIconMenu->addAction(receiveCoinsAction);
 509     trayIconMenu->addSeparator();
 510     trayIconMenu->addAction(signMessageAction);
 511     trayIconMenu->addAction(verifyMessageAction);
 512     trayIconMenu->addSeparator();
 513     trayIconMenu->addAction(optionsAction);
 514     trayIconMenu->addAction(openRPCConsoleAction);
 515 #ifndef Q_OS_MAC
 516     // This is built-in on Mac
 517     trayIconMenu->addSeparator();
 518     trayIconMenu->addAction(quitAction);
 519 #endif
 520     notificator = new Notificator(QApplication::applicationName(), trayIcon, this);
 521 }
 522
 523 #ifndef Q_OS_MAC
 524 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 525 {
 526     if(reason == QSystemTrayIcon::Trigger)
 527     {
 528         // Click on system tray icon triggers show/hide of the main window
 529         toggleHideAction->trigger();
 530     }
 531 }
 532 #endif
 533
 534 void BitcoinGUI::optionsClicked()
 535 {
 536     if(!clientModel || !clientModel->getOptionsModel())
 537         return;
 538     OptionsDialog dlg;
 539     dlg.setModel(clientModel->getOptionsModel());
 540     dlg.exec();
 541 }
 542
 543 void BitcoinGUI::aboutClicked()
 544 {
 545     aboutDialog->setModel(clientModel);
 546     aboutDialog->setWindowModality(Qt::ApplicationModal);
 547     aboutDialog->show();
 548 }
 549
 550 void BitcoinGUI::setNumConnections(int count)
 551 {
 552     QString icon;
 553     switch(count)
 554     {
 555     case 0: icon = ":/icons/connect_0"; break;
 556     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 557     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 558     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 559     default: icon = ":/icons/connect_4"; break;
 560     }
 561     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 562     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to NovaCoin network", "", count));
 563 }
 564
 565 void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
 566 {
 567     // don't show / hide progress bar and its label if we have no connection to the network
 568     if (!clientModel || clientModel->getNumConnections() == 0)
 569     {
 570         progressBarLabel->setVisible(false);
 571         progressBar->setVisible(false);
 572
 573         return;
 574     }
 575
 576     QString strStatusBarWarnings = clientModel->getStatusBarWarnings();
 577     QString tooltip;
 578
 579     if(count < nTotalBlocks)
 580     {
 581         int nRemainingBlocks = nTotalBlocks - count;
 582         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 583
 584         if (strStatusBarWarnings.isEmpty())
 585         {
 586             progressBarLabel->setText(tr("Synchronizing with network..."));
 587             progressBarLabel->setVisible(true);
 588             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 589             progressBar->setMaximum(nTotalBlocks);
 590             progressBar->setValue(count);
 591             progressBar->setVisible(true);
 592         }
 593
 594         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 595     }
 596     else
 597     {
 598         if (strStatusBarWarnings.isEmpty())
 599             progressBarLabel->setVisible(false);
 600
 601         progressBar->setVisible(false);
 602         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 603     }
 604
 605     // Override progressBarLabel text and hide progress bar, when we have warnings to display
 606     if (!strStatusBarWarnings.isEmpty())
 607     {
 608         progressBarLabel->setText(strStatusBarWarnings);
 609         progressBarLabel->setVisible(true);
 610         progressBar->setVisible(false);
 611     }
 612
 613     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 614     int secs = lastBlockDate.secsTo(QDateTime::currentDateTime());
 615     QString text;
 616
 617     // Represent time from last generated block in human readable text
 618     if(secs <= 0)
 619     {
 620         // Fully up to date. Leave text empty.
 621     }
 622     else if(secs < 60)
 623     {
 624         text = tr("%n second(s) ago","",secs);
 625     }
 626     else if(secs < 60*60)
 627     {
 628         text = tr("%n minute(s) ago","",secs/60);
 629     }
 630     else if(secs < 24*60*60)
 631     {
 632         text = tr("%n hour(s) ago","",secs/(60*60));
 633     }
 634     else
 635     {
 636         text = tr("%n day(s) ago","",secs/(60*60*24));
 637     }
 638
 639     // Set icon state: spinning if catching up, tick otherwise
 640     if(secs < 90*60 && count >= nTotalBlocks)
 641     {
 642         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 643         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 644
 645         overviewPage->showOutOfSyncWarning(false);
 646     }
 647     else
 648     {
 649         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 650         labelBlocksIcon->setMovie(syncIconMovie);
 651         syncIconMovie->start();
 652
 653         overviewPage->showOutOfSyncWarning(true);
 654     }
 655
 656     if(!text.isEmpty())
 657     {
 658         tooltip += QString("<br>");
 659         tooltip += tr("Last received block was generated %1.").arg(text);
 660     }
 661
 662     // Don't word-wrap this (fixed-width) tooltip
 663     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 664
 665     labelBlocksIcon->setToolTip(tooltip);
 666     progressBarLabel->setToolTip(tooltip);
 667     progressBar->setToolTip(tooltip);
 668 }
 669
 670 void BitcoinGUI::updateMining()
 671 {
 672    if(!walletModel)
 673       return;
 674
 675     labelMiningIcon->setPixmap(QIcon(":/icons/mining_inactive").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 676
 677     if (!clientModel->getNumConnections())
 678     {
 679         labelMiningIcon->setToolTip(tr("Wallet is offline"));
 680         return;
 681     }
 682
 683     if (walletModel->getEncryptionStatus() == WalletModel::Locked)
 684     {
 685         labelMiningIcon->setToolTip(tr("Wallet is locked"));
 686         return;
 687     }
 688
 689     if (clientModel->inInitialBlockDownload() || clientModel->getNumBlocksOfPeers() > clientModel->getNumBlocks())
 690     {
 691         labelMiningIcon->setToolTip(tr("Blockchain download is in progress"));
 692         return;
 693     }
 694
 695     float nKernelsRate = 0, nCoinDaysRate = 0;
 696     walletModel->getStakeStats(nKernelsRate, nCoinDaysRate);
 697
 698     if (nKernelsRate > 0)
 699     {
 700         labelMiningIcon->setPixmap(QIcon(":/icons/mining_active").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 701
 702         uint64_t nNetworkWeight = clientModel->getPoSKernelPS();
 703 /*
 704         double dDifficulty = clientModel->getDifficulty(true);
 705         QString msg;
 706
 707         int nApproxTime = 4294967297 * dDifficulty / nTotalWeight;
 708
 709         if (nApproxTime < 60)
 710             msg = tr("%n second(s)", "", nApproxTime);
 711         else if (nApproxTime < 60*60)
 712             msg = tr("%n minute(s)", "", nApproxTime / 60);
 713         else if (nApproxTime < 24*60*60)
 714             msg = tr("%n hour(s)", "", nApproxTime / 3600);
 715         else
 716             msg = tr("%n day(s)", "", nApproxTime / 86400);
 717
 718         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));
 719 */
 720
 721         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>"));
 722     }
 723     else
 724         labelMiningIcon->setToolTip(tr("No suitable inputs were found"));
 725 }
 726
 727 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 728 {
 729     // Report errors from network/worker thread
 730     if(modal)
 731     {
 732         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 733     } else {
 734         notificator->notify(Notificator::Critical, title, message);
 735     }
 736 }
 737
 738 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, const QString &detail)
 739 {
 740     QString strTitle = tr("NovaCoin") + " - ";
 741     // Default to information icon
 742     int nMBoxIcon = QMessageBox::Information;
 743     int nNotifyIcon = Notificator::Information;
 744
 745
 746     // Check for usage of predefined title
 747     switch (style) {
 748     case CClientUIInterface::MSG_ERROR:
 749         strTitle += tr("Error");
 750         break;
 751     case CClientUIInterface::MSG_WARNING:
 752         strTitle += tr("Warning");
 753         break;
 754     case CClientUIInterface::MSG_INFORMATION:
 755         strTitle += tr("Information");
 756         break;
 757     default:
 758         strTitle += title; // Use supplied title
 759     }
 760
 761     // Check for error/warning icon
 762     if (style & CClientUIInterface::ICON_ERROR) {
 763         nMBoxIcon = QMessageBox::Critical;
 764         nNotifyIcon = Notificator::Critical;
 765     }
 766     else if (style & CClientUIInterface::ICON_WARNING) {
 767         nMBoxIcon = QMessageBox::Warning;
 768         nNotifyIcon = Notificator::Warning;
 769     }
 770
 771     // Display message
 772     if (style & CClientUIInterface::MODAL) {
 773         // Check for buttons, use OK as default, if none was supplied
 774         QMessageBox::StandardButton buttons;
 775         buttons = QMessageBox::Ok;
 776
 777         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons);
 778
 779         if(!detail.isEmpty()) { mBox.setDetailedText(detail); }
 780
 781         mBox.exec();
 782     }
 783     else
 784         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 785 }
 786
 787
 788 void BitcoinGUI::changeEvent(QEvent *e)
 789 {
 790     QMainWindow::changeEvent(e);
 791 #ifndef Q_OS_MAC // Ignored on Mac
 792     if(e->type() == QEvent::WindowStateChange)
 793     {
 794         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 795         {
 796             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 797             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 798             {
 799                 QTimer::singleShot(0, this, SLOT(hide()));
 800                 e->ignore();
 801             }
 802         }
 803     }
 804 #endif
 805 }
 806
 807 void BitcoinGUI::closeEvent(QCloseEvent *event)
 808 {
 809     if(clientModel)
 810     {
 811 #ifndef Q_OS_MAC // Ignored on Mac
 812         if(!clientModel->getOptionsModel()->getMinimizeOnClose())
 813         {
 814             qApp->quit();
 815         }
 816 #endif
 817     }
 818     // close rpcConsole in case it was open to make some space for the shutdown window
 819     rpcConsole->close();
 820
 821     QMainWindow::closeEvent(event);
 822 }
 823
 824 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 825 {
 826     QString strMessage =
 827         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 828           "which goes to the nodes that process your transaction and helps to support the network.  "
 829           "Do you want to pay the fee?").arg(
 830                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 831     QMessageBox::StandardButton retval = QMessageBox::question(
 832           this, tr("Confirm transaction fee"), strMessage,
 833           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 834     *payFee = (retval == QMessageBox::Yes);
 835 }
 836
 837 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 838 {
 839     if(!walletModel || !clientModel)
 840         return;
 841     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 842     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 843                     .data(Qt::EditRole).toULongLong();
 844     if(!clientModel->inInitialBlockDownload())
 845     {
 846         // On new transaction, make an info balloon
 847         // Unless the initial block download is in progress, to prevent balloon-spam
 848         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 849                         .data().toString();
 850         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 851                         .data().toString();
 852         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 853                         .data().toString();
 854         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 855                             TransactionTableModel::ToAddress, parent)
 856                         .data(Qt::DecorationRole));
 857
 858         notificator->notify(Notificator::Information,
 859                             (amount)<0 ? tr("Sent transaction") :
 860                                          tr("Incoming transaction"),
 861                               tr("Date: %1\n"
 862                                  "Amount: %2\n"
 863                                  "Type: %3\n"
 864                                  "Address: %4\n")
 865                               .arg(date)
 866                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 867                               .arg(type)
 868                               .arg(address), icon);
 869     }
 870 }
 871
 872 void BitcoinGUI::gotoOverviewPage()
 873 {
 874     overviewAction->setChecked(true);
 875     centralWidget->setCurrentWidget(overviewPage);
 876
 877     exportAction->setEnabled(false);
 878     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 879 }
 880
 881 void BitcoinGUI::gotoHistoryPage()
 882 {
 883     historyAction->setChecked(true);
 884     centralWidget->setCurrentWidget(transactionsPage);
 885
 886     exportAction->setEnabled(true);
 887     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 888     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 889 }
 890
 891 void BitcoinGUI::gotoMintingPage()
 892 {
 893     mintingAction->setChecked(true);
 894     centralWidget->setCurrentWidget(mintingPage);
 895
 896     exportAction->setEnabled(true);
 897     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 898     connect(exportAction, SIGNAL(triggered()), mintingView, SLOT(exportClicked()));
 899 }
 900
 901
 902 void BitcoinGUI::gotoAddressBookPage()
 903 {
 904     addressBookAction->setChecked(true);
 905     centralWidget->setCurrentWidget(addressBookPage);
 906
 907     exportAction->setEnabled(true);
 908     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 909     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 910 }
 911
 912 void BitcoinGUI::gotoReceiveCoinsPage()
 913 {
 914     receiveCoinsAction->setChecked(true);
 915     centralWidget->setCurrentWidget(receiveCoinsPage);
 916
 917     exportAction->setEnabled(true);
 918     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 919     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 920 }
 921
 922 void BitcoinGUI::gotoSendCoinsPage()
 923 {
 924     sendCoinsAction->setChecked(true);
 925     centralWidget->setCurrentWidget(sendCoinsPage);
 926
 927     exportAction->setEnabled(false);
 928     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 929 }
 930
 931 void BitcoinGUI::gotoSignMessageTab(QString addr)
 932 {
 933     // call show() in showTab_SM()
 934     signVerifyMessageDialog->showTab_SM(true);
 935
 936     if(!addr.isEmpty())
 937         signVerifyMessageDialog->setAddress_SM(addr);
 938 }
 939
 940 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 941 {
 942     // call show() in showTab_VM()
 943     signVerifyMessageDialog->showTab_VM(true);
 944
 945     if(!addr.isEmpty())
 946         signVerifyMessageDialog->setAddress_VM(addr);
 947 }
 948
 949 void BitcoinGUI::gotoMultisigPage()
 950 {
 951     multisigPage->show();
 952     multisigPage->setFocus();
 953 }
 954
 955 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 956 {
 957     // Accept only URIs
 958     if(event->mimeData()->hasUrls())
 959         event->acceptProposedAction();
 960 }
 961
 962 void BitcoinGUI::dropEvent(QDropEvent *event)
 963 {
 964     if(event->mimeData()->hasUrls())
 965     {
 966         int nValidUrisFound = 0;
 967         QList<QUrl> uris = event->mimeData()->urls();
 968         foreach(const QUrl &uri, uris)
 969         {
 970             if (sendCoinsPage->handleURI(uri.toString()))
 971                 nValidUrisFound++;
 972         }
 973
 974         // if valid URIs were found
 975         if (nValidUrisFound)
 976             gotoSendCoinsPage();
 977         else
 978             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."));
 979     }
 980
 981     event->acceptProposedAction();
 982 }
 983
 984 void BitcoinGUI::handleURI(QString strURI)
 985 {
 986     // URI has to be valid
 987     if (sendCoinsPage->handleURI(strURI))
 988     {
 989         showNormalIfMinimized();
 990         gotoSendCoinsPage();
 991     }
 992     else
 993         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."));
 994 }
 995
 996 void BitcoinGUI::setEncryptionStatus(int status)
 997 {
 998     switch(status)
 999     {
1000     case WalletModel::Unencrypted:
1001         labelEncryptionIcon->hide();
1002         encryptWalletAction->setChecked(false);
1003         changePassphraseAction->setEnabled(false);
1004         lockWalletAction->setEnabled(false);
1005         unlockWalletAction->setEnabled(false);
1006         unlockWalletMiningAction->setEnabled(false);
1007         encryptWalletAction->setEnabled(true);
1008         break;
1009     case WalletModel::Unlocked:
1010         labelEncryptionIcon->show();
1011         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1012         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
1013         encryptWalletAction->setChecked(true);
1014         changePassphraseAction->setEnabled(true);
1015         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1016
1017         lockWalletAction->setEnabled(true);
1018         lockWalletAction->setChecked(false);
1019         unlockWalletAction->setEnabled(false);
1020         unlockWalletMiningAction->setEnabled(false);
1021
1022         if (fWalletUnlockMintOnly)
1023             unlockWalletMiningAction->setChecked(true);
1024         else
1025             unlockWalletAction->setChecked(true);
1026
1027         break;
1028     case WalletModel::Locked:
1029         labelEncryptionIcon->show();
1030         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1031         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1032         encryptWalletAction->setChecked(true);
1033         changePassphraseAction->setEnabled(true);
1034         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1035
1036         lockWalletAction->setChecked(true);
1037         unlockWalletAction->setChecked(false);
1038         unlockWalletMiningAction->setChecked(false);
1039
1040         lockWalletAction->setEnabled(false);
1041         unlockWalletAction->setEnabled(true);
1042         unlockWalletMiningAction->setEnabled(true);
1043         break;
1044     }
1045 }
1046
1047 void BitcoinGUI::encryptWallet(bool status)
1048 {
1049     if(!walletModel)
1050         return;
1051     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
1052                                      AskPassphraseDialog::Decrypt, this);
1053     dlg.setModel(walletModel);
1054     dlg.exec();
1055
1056     setEncryptionStatus(walletModel->getEncryptionStatus());
1057 }
1058
1059 void BitcoinGUI::unlockWalletMining(bool status)
1060 {
1061     if(!walletModel)
1062         return;
1063
1064     // Unlock wallet when requested by wallet model
1065     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1066     {
1067         AskPassphraseDialog dlg(AskPassphraseDialog::UnlockMining, this);
1068         dlg.setModel(walletModel);
1069         dlg.exec();
1070     }
1071 }
1072
1073 void BitcoinGUI::backupWallet()
1074 {
1075 #if QT_VERSION < 0x050000
1076     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1077 #else
1078     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1079 #endif
1080     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
1081     if(!filename.isEmpty()) {
1082         if(!walletModel->backupWallet(filename)) {
1083             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
1084         }
1085     }
1086 }
1087
1088 void BitcoinGUI::dumpWallet()
1089 {
1090    if(!walletModel)
1091       return;
1092
1093    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1094    if(!ctx.isValid())
1095    {
1096        // Unlock wallet failed or was cancelled
1097        return;
1098    }
1099
1100 #if QT_VERSION < 0x050000
1101     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1102 #else
1103     QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1104 #endif
1105     QString filename = QFileDialog::getSaveFileName(this, tr("Dump Wallet"), saveDir, tr("Wallet dump (*.txt)"));
1106     if(!filename.isEmpty()) {
1107         if(!walletModel->dumpWallet(filename)) {
1108             error(tr("Dump failed"),
1109                          tr("An error happened while trying to save the keys to your location.\n"
1110                             "Keys were not saved.")
1111                       ,CClientUIInterface::MSG_ERROR);
1112         }
1113         else
1114           message(tr("Dump successful"),
1115                        tr("Keys were saved to this file:\n%2")
1116                        .arg(filename)
1117                       ,CClientUIInterface::MSG_INFORMATION);
1118     }
1119 }
1120
1121 void BitcoinGUI::importWallet()
1122 {
1123    if(!walletModel)
1124       return;
1125
1126    WalletModel::UnlockContext ctx(walletModel->requestUnlock());
1127    if(!ctx.isValid())
1128    {
1129        // Unlock wallet failed or was cancelled
1130        return;
1131    }
1132
1133 #if QT_VERSION < 0x050000
1134     QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
1135 #else
1136     QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
1137 #endif
1138     QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet dump (*.txt)"));
1139     if(!filename.isEmpty()) {
1140         if(!walletModel->importWallet(filename)) {
1141             error(tr("Import Failed"),
1142                          tr("An error happened while trying to import the keys.\n"
1143                             "Some or all keys from:\n %1,\n were not imported into your wallet.")
1144                          .arg(filename)
1145                       ,CClientUIInterface::MSG_ERROR);
1146         }
1147         else
1148           message(tr("Import Successful"),
1149                        tr("All keys from:\n %1,\n were imported into your wallet.")
1150                        .arg(filename)
1151                       ,CClientUIInterface::MSG_INFORMATION);
1152     }
1153 }
1154
1155
1156 void BitcoinGUI::changePassphrase()
1157 {
1158     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
1159     dlg.setModel(walletModel);
1160     dlg.exec();
1161 }
1162
1163 void BitcoinGUI::unlockWallet()
1164 {
1165     if(!walletModel)
1166         return;
1167     // Unlock wallet when requested by wallet model
1168     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
1169     {
1170         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
1171         dlg.setModel(walletModel);
1172         dlg.exec();
1173     }
1174 }
1175
1176 void BitcoinGUI::lockWallet()
1177 {
1178     if(!walletModel)
1179         return;
1180
1181     walletModel->setWalletLocked(true);
1182 }
1183
1184 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1185 {
1186     // activateWindow() (sometimes) helps with keyboard focus on Windows
1187     if (isHidden())
1188     {
1189         // Make sure the window is not minimized
1190         setWindowState(windowState() & (~Qt::WindowMinimized | Qt::WindowActive));
1191         // Then show it
1192         show();
1193         raise();
1194         activateWindow();
1195     }
1196     else if (isMinimized())
1197     {
1198         showNormal();
1199         raise();
1200         activateWindow();
1201     }
1202     else if (GUIUtil::isObscured(this))
1203     {
1204         raise();
1205         activateWindow();
1206         if(fToggleHidden)
1207         {
1208             Sleep(1);
1209             if (GUIUtil::isObscured(this))
1210                 hide();
1211         }
1212     }
1213     else if(fToggleHidden)
1214         hide();
1215 }
1216
1217 void BitcoinGUI::toggleHidden()
1218 {
1219     showNormalIfMinimized(true);
1220 }