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