src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 20011-2012
   5  * The Bitcoin Developers 20011-2012
   6  */
   7 #include "bitcoingui.h"
   8 #include "transactiontablemodel.h"
   9 #include "addressbookpage.h"
  10 #include "sendcoinsdialog.h"
  11 #include "messagepage.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
  27 #ifdef Q_WS_MAC
  28 #include "macdockiconhandler.h"
  29 #endif
  30
  31 #include <QApplication>
  32 #include <QMainWindow>
  33 #include <QMenuBar>
  34 #include <QMenu>
  35 #include <QIcon>
  36 #include <QTabWidget>
  37 #include <QVBoxLayout>
  38 #include <QToolBar>
  39 #include <QStatusBar>
  40 #include <QLabel>
  41 #include <QLineEdit>
  42 #include <QPushButton>
  43 #include <QLocale>
  44 #include <QMessageBox>
  45 #include <QProgressBar>
  46 #include <QStackedWidget>
  47 #include <QDateTime>
  48 #include <QMovie>
  49 #include <QFileDialog>
  50 #include <QDesktopServices>
  51 #include <QTimer>
  52
  53 #include <QDragEnterEvent>
  54 #include <QUrl>
  55
  56 #include <iostream>
  57
  58 BitcoinGUI::BitcoinGUI(QWidget *parent):
  59     QMainWindow(parent),
  60     clientModel(0),
  61     walletModel(0),
  62     encryptWalletAction(0),
  63     changePassphraseAction(0),
  64     aboutQtAction(0),
  65     trayIcon(0),
  66     notificator(0)
  67 {
  68     resize(850, 550);
  69     setWindowTitle(tr("Bitcoin Wallet"));
  70 #ifndef Q_WS_MAC
  71     setWindowIcon(QIcon(":icons/bitcoin"));
  72 #else
  73     setUnifiedTitleAndToolBarOnMac(true);
  74     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  75 #endif
  76     // Accept D&D of URIs
  77     setAcceptDrops(true);
  78
  79     // Create actions for the toolbar, menu bar and tray/dock icon
  80     createActions();
  81
  82     // Create application menu bar
  83     createMenuBar();
  84
  85     // Create the toolbars
  86     createToolBars();
  87
  88     // Create the tray icon (or setup the dock icon)
  89     createTrayIcon();
  90
  91     // Create tabs
  92     overviewPage = new OverviewPage();
  93
  94     transactionsPage = new QWidget(this);
  95     QVBoxLayout *vbox = new QVBoxLayout();
  96     transactionView = new TransactionView(this);
  97     vbox->addWidget(transactionView);
  98     transactionsPage->setLayout(vbox);
  99
 100     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 101
 102     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 103
 104     sendCoinsPage = new SendCoinsDialog(this);
 105
 106     messagePage = new MessagePage(this);
 107
 108     centralWidget = new QStackedWidget(this);
 109     centralWidget->addWidget(overviewPage);
 110     centralWidget->addWidget(transactionsPage);
 111     centralWidget->addWidget(addressBookPage);
 112     centralWidget->addWidget(receiveCoinsPage);
 113     centralWidget->addWidget(sendCoinsPage);
 114 #ifdef FIRST_CLASS_MESSAGING
 115     centralWidget->addWidget(messagePage);
 116 #endif
 117     setCentralWidget(centralWidget);
 118
 119     // Create status bar
 120     statusBar();
 121
 122     // Status bar notification icons
 123     QFrame *frameBlocks = new QFrame();
 124     frameBlocks->setContentsMargins(0,0,0,0);
 125     frameBlocks->setMinimumWidth(56);
 126     frameBlocks->setMaximumWidth(56);
 127     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 128     frameBlocksLayout->setContentsMargins(3,0,3,0);
 129     frameBlocksLayout->setSpacing(3);
 130     labelEncryptionIcon = new QLabel();
 131     labelConnectionsIcon = new QLabel();
 132     labelBlocksIcon = new QLabel();
 133     frameBlocksLayout->addStretch();
 134     frameBlocksLayout->addWidget(labelEncryptionIcon);
 135     frameBlocksLayout->addStretch();
 136     frameBlocksLayout->addWidget(labelConnectionsIcon);
 137     frameBlocksLayout->addStretch();
 138     frameBlocksLayout->addWidget(labelBlocksIcon);
 139     frameBlocksLayout->addStretch();
 140
 141     // Progress bar for blocks download
 142     progressBarLabel = new QLabel(tr("Synchronizing with network..."));
 143     progressBarLabel->setVisible(false);
 144     progressBar = new QProgressBar();
 145     progressBar->setToolTip(tr("Block chain synchronization in progress"));
 146     progressBar->setVisible(false);
 147
 148     statusBar()->addWidget(progressBarLabel);
 149     statusBar()->addWidget(progressBar);
 150     statusBar()->addPermanentWidget(frameBlocks);
 151
 152     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 153
 154     // Clicking on a transaction on the overview page simply sends you to transaction history page
 155     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 156
 157     // Doubleclicking on a transaction on the transaction history page shows details
 158     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 159
 160     gotoOverviewPage();
 161 }
 162
 163 BitcoinGUI::~BitcoinGUI()
 164 {
 165     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 166         trayIcon->hide();
 167 #ifdef Q_WS_MAC
 168     delete appMenuBar;
 169 #endif
 170 }
 171
 172 void BitcoinGUI::createActions()
 173 {
 174     QActionGroup *tabGroup = new QActionGroup(this);
 175
 176     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 177     overviewAction->setToolTip(tr("Show general overview of wallet"));
 178     overviewAction->setCheckable(true);
 179     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 180     tabGroup->addAction(overviewAction);
 181
 182     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 183     historyAction->setToolTip(tr("Browse transaction history"));
 184     historyAction->setCheckable(true);
 185     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 186     tabGroup->addAction(historyAction);
 187
 188     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 189     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 190     addressBookAction->setCheckable(true);
 191     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 192     tabGroup->addAction(addressBookAction);
 193
 194     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 195     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 196     receiveCoinsAction->setCheckable(true);
 197     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 198     tabGroup->addAction(receiveCoinsAction);
 199
 200     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 201     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 202     sendCoinsAction->setCheckable(true);
 203     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 204     tabGroup->addAction(sendCoinsAction);
 205
 206     messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
 207     messageAction->setToolTip(tr("Prove you control an address"));
 208 #ifdef FIRST_CLASS_MESSAGING
 209     messageAction->setCheckable(true);
 210 #endif
 211     tabGroup->addAction(messageAction);
 212
 213     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 214     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 215     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 216     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 217     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 218     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 219     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 220     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 221     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 222     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 223     connect(messageAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 224     connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));
 225
 226     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 227     quitAction->setToolTip(tr("Quit application"));
 228     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 229     quitAction->setMenuRole(QAction::QuitRole);
 230     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 231     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 232     aboutAction->setMenuRole(QAction::AboutRole);
 233     aboutQtAction = new QAction(tr("About &Qt"), this);
 234     aboutQtAction->setToolTip(tr("Show information about Qt"));
 235     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 236     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 237     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 238     optionsAction->setMenuRole(QAction::PreferencesRole);
 239     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 240     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 241     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 242     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 243     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 244     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 245     encryptWalletAction->setCheckable(true);
 246     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet"), this);
 247     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 248     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 249     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 250
 251     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 252     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 253     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 254     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 255     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 256     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 257     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 258     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 259 }
 260
 261 void BitcoinGUI::createMenuBar()
 262 {
 263 #ifdef Q_WS_MAC
 264     // Create a decoupled menu bar on Mac which stays even if the window is closed
 265     appMenuBar = new QMenuBar();
 266 #else
 267     // Get the main window's menu bar on other platforms
 268     appMenuBar = menuBar();
 269 #endif
 270
 271     // Configure the menus
 272     QMenu *file = appMenuBar->addMenu(tr("&File"));
 273     file->addAction(backupWalletAction);
 274     file->addAction(exportAction);
 275 #ifndef FIRST_CLASS_MESSAGING
 276     file->addAction(messageAction);
 277 #endif
 278     file->addSeparator();
 279     file->addAction(quitAction);
 280
 281     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 282     settings->addAction(encryptWalletAction);
 283     settings->addAction(changePassphraseAction);
 284     settings->addSeparator();
 285     settings->addAction(optionsAction);
 286
 287     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 288     help->addAction(aboutAction);
 289     help->addAction(aboutQtAction);
 290 }
 291
 292 void BitcoinGUI::createToolBars()
 293 {
 294     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 295     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 296     toolbar->addAction(overviewAction);
 297     toolbar->addAction(sendCoinsAction);
 298     toolbar->addAction(receiveCoinsAction);
 299     toolbar->addAction(historyAction);
 300     toolbar->addAction(addressBookAction);
 301 #ifdef FIRST_CLASS_MESSAGING
 302     toolbar->addAction(messageAction);
 303 #endif
 304
 305     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 306     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 307     toolbar2->addAction(exportAction);
 308 }
 309
 310 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 311 {
 312     this->clientModel = clientModel;
 313     if(clientModel)
 314     {
 315         if(clientModel->isTestNet())
 316         {
 317             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 318             setWindowTitle(title_testnet);
 319 #ifndef Q_WS_MAC
 320             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 321 #else
 322             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 323 #endif
 324             if(trayIcon)
 325             {
 326                 trayIcon->setToolTip(title_testnet);
 327                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 328             }
 329         }
 330
 331         // Keep up to date with client
 332         setNumConnections(clientModel->getNumConnections());
 333         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 334
 335         setNumBlocks(clientModel->getNumBlocks());
 336         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 337
 338         // Report errors from network/worker thread
 339         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 340     }
 341 }
 342
 343 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 344 {
 345     this->walletModel = walletModel;
 346     if(walletModel)
 347     {
 348         // Report errors from wallet thread
 349         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 350
 351         // Put transaction list in tabs
 352         transactionView->setModel(walletModel);
 353
 354         overviewPage->setModel(walletModel);
 355         addressBookPage->setModel(walletModel->getAddressTableModel());
 356         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 357         sendCoinsPage->setModel(walletModel);
 358         messagePage->setModel(walletModel);
 359
 360         setEncryptionStatus(walletModel->getEncryptionStatus());
 361         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 362
 363         // Balloon popup for new transaction
 364         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 365                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 366
 367         // Ask for passphrase if needed
 368         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 369     }
 370 }
 371
 372 void BitcoinGUI::createTrayIcon()
 373 {
 374     QMenu *trayIconMenu;
 375 #ifndef Q_WS_MAC
 376     trayIcon = new QSystemTrayIcon(this);
 377     trayIconMenu = new QMenu(this);
 378     trayIcon->setContextMenu(trayIconMenu);
 379     trayIcon->setToolTip("Bitcoin client");
 380     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 381     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 382             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 383     trayIcon->show();
 384 #else
 385     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 386     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 387     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 388     trayIconMenu = dockIconHandler->dockMenu();
 389 #endif
 390
 391     // Configuration of the tray icon (or dock icon) icon menu
 392     trayIconMenu->addAction(openBitcoinAction);
 393     trayIconMenu->addSeparator();
 394     trayIconMenu->addAction(messageAction);
 395 #ifndef FIRST_CLASS_MESSAGING
 396     trayIconMenu->addSeparator();
 397 #endif
 398     trayIconMenu->addAction(receiveCoinsAction);
 399     trayIconMenu->addAction(sendCoinsAction);
 400     trayIconMenu->addSeparator();
 401     trayIconMenu->addAction(optionsAction);
 402 #ifndef Q_WS_MAC // This is built-in on Mac
 403     trayIconMenu->addSeparator();
 404     trayIconMenu->addAction(quitAction);
 405 #endif
 406
 407     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 408 }
 409
 410 #ifndef Q_WS_MAC
 411 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 412 {
 413     if(reason == QSystemTrayIcon::Trigger)
 414     {
 415         // Click on system tray icon triggers "open bitcoin"
 416         openBitcoinAction->trigger();
 417     }
 418 }
 419 #endif
 420
 421 void BitcoinGUI::optionsClicked()
 422 {
 423     if(!clientModel || !clientModel->getOptionsModel())
 424         return;
 425     OptionsDialog dlg;
 426     dlg.setModel(clientModel->getOptionsModel());
 427     dlg.exec();
 428 }
 429
 430 void BitcoinGUI::aboutClicked()
 431 {
 432     AboutDialog dlg;
 433     dlg.setModel(clientModel);
 434     dlg.exec();
 435 }
 436
 437 void BitcoinGUI::setNumConnections(int count)
 438 {
 439     QString icon;
 440     switch(count)
 441     {
 442     case 0: icon = ":/icons/connect_0"; break;
 443     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 444     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 445     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 446     default: icon = ":/icons/connect_4"; break;
 447     }
 448     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 449     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 450 }
 451
 452 void BitcoinGUI::setNumBlocks(int count)
 453 {
 454     if(!clientModel)
 455         return;
 456     int total = clientModel->getNumBlocksOfPeers();
 457     QString tooltip;
 458
 459     if(count < total)
 460     {
 461         if (clientModel->getStatusBarWarnings() == "")
 462         {
 463             progressBarLabel->setVisible(true);
 464             progressBarLabel->setText(tr("Synchronizing with network..."));
 465             progressBar->setVisible(true);
 466             progressBar->setMaximum(total);
 467             progressBar->setValue(count);
 468         }
 469         else
 470         {
 471             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 472             progressBarLabel->setVisible(true);
 473             progressBar->setVisible(false);
 474         }
 475         tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
 476     }
 477     else
 478     {
 479         if (clientModel->getStatusBarWarnings() == "")
 480             progressBarLabel->setVisible(false);
 481         else
 482         {
 483             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 484             progressBarLabel->setVisible(true);
 485         }
 486         progressBar->setVisible(false);
 487         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 488     }
 489
 490     QDateTime now = QDateTime::currentDateTime();
 491     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 492     int secs = lastBlockDate.secsTo(now);
 493     QString text;
 494
 495     // Represent time from last generated block in human readable text
 496     if(secs <= 0)
 497     {
 498         // Fully up to date. Leave text empty.
 499     }
 500     else if(secs < 60)
 501     {
 502         text = tr("%n second(s) ago","",secs);
 503     }
 504     else if(secs < 60*60)
 505     {
 506         text = tr("%n minute(s) ago","",secs/60);
 507     }
 508     else if(secs < 24*60*60)
 509     {
 510         text = tr("%n hour(s) ago","",secs/(60*60));
 511     }
 512     else
 513     {
 514         text = tr("%n day(s) ago","",secs/(60*60*24));
 515     }
 516
 517     // Set icon state: spinning if catching up, tick otherwise
 518     if(secs < 30*60)
 519     {
 520         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 521         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 522     }
 523     else
 524     {
 525         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 526         labelBlocksIcon->setMovie(syncIconMovie);
 527         syncIconMovie->start();
 528     }
 529
 530     if(!text.isEmpty())
 531     {
 532         tooltip += QString("\n");
 533         tooltip += tr("Last received block was generated %1.").arg(text);
 534     }
 535
 536     labelBlocksIcon->setToolTip(tooltip);
 537     progressBarLabel->setToolTip(tooltip);
 538     progressBar->setToolTip(tooltip);
 539 }
 540
 541 void BitcoinGUI::refreshStatusBar()
 542 {
 543     /* Might display multiple times in the case of multiple alerts
 544     static QString prevStatusBar;
 545     QString newStatusBar = clientModel->getStatusBarWarnings();
 546     if (prevStatusBar != newStatusBar)
 547     {
 548         prevStatusBar = newStatusBar;
 549         error(tr("Network Alert"), newStatusBar);
 550     }*/
 551     setNumBlocks(clientModel->getNumBlocks());
 552 }
 553
 554 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 555 {
 556     // Report errors from network/worker thread
 557     if (modal)
 558     {
 559         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 560     } else {
 561         notificator->notify(Notificator::Critical, title, message);
 562     }
 563 }
 564
 565 void BitcoinGUI::changeEvent(QEvent *e)
 566 {
 567     QMainWindow::changeEvent(e);
 568 #ifndef Q_WS_MAC // Ignored on Mac
 569     if(e->type() == QEvent::WindowStateChange)
 570     {
 571         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 572         {
 573             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 574             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 575             {
 576                 QTimer::singleShot(0, this, SLOT(hide()));
 577                 e->ignore();
 578             }
 579         }
 580     }
 581 #endif
 582 }
 583
 584 void BitcoinGUI::closeEvent(QCloseEvent *event)
 585 {
 586     if(clientModel)
 587     {
 588 #ifndef Q_WS_MAC // Ignored on Mac
 589         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 590            !clientModel->getOptionsModel()->getMinimizeOnClose())
 591         {
 592             qApp->quit();
 593         }
 594 #endif
 595     }
 596     QMainWindow::closeEvent(event);
 597 }
 598
 599 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 600 {
 601     QString strMessage =
 602         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 603           "which goes to the nodes that process your transaction and helps to support the network.  "
 604           "Do you want to pay the fee?").arg(
 605                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 606     QMessageBox::StandardButton retval = QMessageBox::question(
 607           this, tr("Sending..."), strMessage,
 608           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 609     *payFee = (retval == QMessageBox::Yes);
 610 }
 611
 612 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 613 {
 614     if(!walletModel || !clientModel)
 615         return;
 616     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 617     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 618                     .data(Qt::EditRole).toULongLong();
 619     if(!clientModel->inInitialBlockDownload())
 620     {
 621         // On new transaction, make an info balloon
 622         // Unless the initial block download is in progress, to prevent balloon-spam
 623         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 624                         .data().toString();
 625         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 626                         .data().toString();
 627         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 628                         .data().toString();
 629         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 630                             TransactionTableModel::ToAddress, parent)
 631                         .data(Qt::DecorationRole));
 632
 633         notificator->notify(Notificator::Information,
 634                             (amount)<0 ? tr("Sent transaction") :
 635                                          tr("Incoming transaction"),
 636                               tr("Date: %1\n"
 637                                  "Amount: %2\n"
 638                                  "Type: %3\n"
 639                                  "Address: %4\n")
 640                               .arg(date)
 641                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 642                               .arg(type)
 643                               .arg(address), icon);
 644     }
 645 }
 646
 647 void BitcoinGUI::gotoOverviewPage()
 648 {
 649     overviewAction->setChecked(true);
 650     centralWidget->setCurrentWidget(overviewPage);
 651
 652     exportAction->setEnabled(false);
 653     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 654 }
 655
 656 void BitcoinGUI::gotoHistoryPage()
 657 {
 658     historyAction->setChecked(true);
 659     centralWidget->setCurrentWidget(transactionsPage);
 660
 661     exportAction->setEnabled(true);
 662     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 663     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 664 }
 665
 666 void BitcoinGUI::gotoAddressBookPage()
 667 {
 668     addressBookAction->setChecked(true);
 669     centralWidget->setCurrentWidget(addressBookPage);
 670
 671     exportAction->setEnabled(true);
 672     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 673     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 674 }
 675
 676 void BitcoinGUI::gotoReceiveCoinsPage()
 677 {
 678     receiveCoinsAction->setChecked(true);
 679     centralWidget->setCurrentWidget(receiveCoinsPage);
 680
 681     exportAction->setEnabled(true);
 682     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 683     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 684 }
 685
 686 void BitcoinGUI::gotoSendCoinsPage()
 687 {
 688     sendCoinsAction->setChecked(true);
 689     centralWidget->setCurrentWidget(sendCoinsPage);
 690
 691     exportAction->setEnabled(false);
 692     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 693 }
 694
 695 void BitcoinGUI::gotoMessagePage()
 696 {
 697 #ifdef FIRST_CLASS_MESSAGING
 698     messageAction->setChecked(true);
 699     centralWidget->setCurrentWidget(messagePage);
 700
 701     exportAction->setEnabled(false);
 702     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 703 #else
 704     messagePage->show();
 705     messagePage->setFocus();
 706 #endif
 707 }
 708
 709 void BitcoinGUI::gotoMessagePage(QString addr)
 710 {
 711     gotoMessagePage();
 712     messagePage->setAddress(addr);
 713 }
 714
 715 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 716 {
 717     // Accept only URLs
 718     if(event->mimeData()->hasUrls())
 719         event->acceptProposedAction();
 720 }
 721
 722 void BitcoinGUI::dropEvent(QDropEvent *event)
 723 {
 724     if(event->mimeData()->hasUrls())
 725     {
 726         gotoSendCoinsPage();
 727         QList<QUrl> urls = event->mimeData()->urls();
 728         foreach(const QUrl &url, urls)
 729         {
 730             sendCoinsPage->handleURL(url.toString());
 731         }
 732     }
 733
 734     event->acceptProposedAction();
 735 }
 736
 737 void BitcoinGUI::handleURL(QString strURL)
 738 {
 739     gotoSendCoinsPage();
 740     sendCoinsPage->handleURL(strURL);
 741
 742     if(!isActiveWindow())
 743         activateWindow();
 744
 745     showNormalIfMinimized();
 746 }
 747
 748 void BitcoinGUI::setEncryptionStatus(int status)
 749 {
 750     switch(status)
 751     {
 752     case WalletModel::Unencrypted:
 753         labelEncryptionIcon->hide();
 754         encryptWalletAction->setChecked(false);
 755         changePassphraseAction->setEnabled(false);
 756         encryptWalletAction->setEnabled(true);
 757         break;
 758     case WalletModel::Unlocked:
 759         labelEncryptionIcon->show();
 760         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 761         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 762         encryptWalletAction->setChecked(true);
 763         changePassphraseAction->setEnabled(true);
 764         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 765         break;
 766     case WalletModel::Locked:
 767         labelEncryptionIcon->show();
 768         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 769         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 770         encryptWalletAction->setChecked(true);
 771         changePassphraseAction->setEnabled(true);
 772         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 773         break;
 774     }
 775 }
 776
 777 void BitcoinGUI::encryptWallet(bool status)
 778 {
 779     if(!walletModel)
 780         return;
 781     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 782                                      AskPassphraseDialog::Decrypt, this);
 783     dlg.setModel(walletModel);
 784     dlg.exec();
 785
 786     setEncryptionStatus(walletModel->getEncryptionStatus());
 787 }
 788
 789 void BitcoinGUI::backupWallet()
 790 {
 791     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
 792     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
 793     if(!filename.isEmpty()) {
 794         if(!walletModel->backupWallet(filename)) {
 795             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
 796         }
 797     }
 798 }
 799
 800 void BitcoinGUI::changePassphrase()
 801 {
 802     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 803     dlg.setModel(walletModel);
 804     dlg.exec();
 805 }
 806
 807 void BitcoinGUI::unlockWallet()
 808 {
 809     if(!walletModel)
 810         return;
 811     // Unlock wallet when requested by wallet model
 812     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 813     {
 814         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 815         dlg.setModel(walletModel);
 816         dlg.exec();
 817     }
 818 }
 819
 820 void BitcoinGUI::showNormalIfMinimized()
 821 {
 822     if(!isVisible()) // Show, if hidden
 823         show();
 824     if(isMinimized()) // Unminimize, if minimized
 825         showNormal();
 826 }