src/qt/bitcoingui.cpp

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