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