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
   8 #include "checkpoints.h"
   9
  10 #include "bitcoingui.h"
  11 #include "transactiontablemodel.h"
  12 #include "addressbookpage.h"
  13 #include "sendcoinsdialog.h"
  14 #include "messagepage.h"
  15 #include "optionsdialog.h"
  16 #include "aboutdialog.h"
  17 #include "clientmodel.h"
  18 #include "walletmodel.h"
  19 #include "editaddressdialog.h"
  20 #include "optionsmodel.h"
  21 #include "transactiondescdialog.h"
  22 #include "addresstablemodel.h"
  23 #include "transactionview.h"
  24 #include "overviewpage.h"
  25 #include "bitcoinunits.h"
  26 #include "guiconstants.h"
  27 #include "askpassphrasedialog.h"
  28 #include "notificator.h"
  29
  30 #ifdef Q_WS_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
  56 #include <QDragEnterEvent>
  57 #include <QUrl>
  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 {
  71     resize(850, 550);
  72     setWindowTitle(tr("Bitcoin Wallet"));
  73 #ifndef Q_WS_MAC
  74     setWindowIcon(QIcon(":icons/bitcoin"));
  75 #else
  76     setUnifiedTitleAndToolBarOnMac(true);
  77     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  78 #endif
  79     // Accept D&D of URIs
  80     setAcceptDrops(true);
  81
  82     // Create actions for the toolbar, menu bar and tray/dock icon
  83     createActions();
  84
  85     // Create application menu bar
  86     createMenuBar();
  87
  88     // Create the toolbars
  89     createToolBars();
  90
  91     // Create the tray icon (or setup the dock icon)
  92     createTrayIcon();
  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 #ifdef Q_WS_MAC
 169     delete appMenuBar;
 170 #endif
 171 }
 172
 173 void BitcoinGUI::createActions()
 174 {
 175     QActionGroup *tabGroup = new QActionGroup(this);
 176
 177     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 178     overviewAction->setToolTip(tr("Show general overview of wallet"));
 179     overviewAction->setCheckable(true);
 180     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 181     tabGroup->addAction(overviewAction);
 182
 183     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 184     historyAction->setToolTip(tr("Browse transaction history"));
 185     historyAction->setCheckable(true);
 186     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 187     tabGroup->addAction(historyAction);
 188
 189     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 190     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 191     addressBookAction->setCheckable(true);
 192     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 193     tabGroup->addAction(addressBookAction);
 194
 195     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 196     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 197     receiveCoinsAction->setCheckable(true);
 198     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 199     tabGroup->addAction(receiveCoinsAction);
 200
 201     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 202     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 203     sendCoinsAction->setCheckable(true);
 204     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 205     tabGroup->addAction(sendCoinsAction);
 206
 207     messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
 208     messageAction->setToolTip(tr("Prove you control an address"));
 209 #ifdef FIRST_CLASS_MESSAGING
 210     messageAction->setCheckable(true);
 211 #endif
 212     tabGroup->addAction(messageAction);
 213
 214     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 215     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 216     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 217     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 218     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 219     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 220     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 221     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 222     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 223     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 224     connect(messageAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 225     connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));
 226
 227     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 228     quitAction->setToolTip(tr("Quit application"));
 229     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 230     quitAction->setMenuRole(QAction::QuitRole);
 231     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 232     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 233     aboutAction->setMenuRole(QAction::AboutRole);
 234     aboutQtAction = new QAction(tr("About &Qt"), this);
 235     aboutQtAction->setToolTip(tr("Show information about Qt"));
 236     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 237     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 238     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 239     optionsAction->setMenuRole(QAction::PreferencesRole);
 240     openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
 241     openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
 242     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 243     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 244     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 245     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 246     encryptWalletAction->setCheckable(true);
 247     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet"), this);
 248     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 249     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 250     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 251
 252     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 253     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 254     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 255     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 256     connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 257     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 258     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 259     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 260 }
 261
 262 void BitcoinGUI::createMenuBar()
 263 {
 264 #ifdef Q_WS_MAC
 265     // Create a decoupled menu bar on Mac which stays even if the window is closed
 266     appMenuBar = new QMenuBar();
 267 #else
 268     // Get the main window's menu bar on other platforms
 269     appMenuBar = menuBar();
 270 #endif
 271
 272     // Configure the menus
 273     QMenu *file = appMenuBar->addMenu(tr("&File"));
 274     file->addAction(backupWalletAction);
 275     file->addAction(exportAction);
 276 #ifndef FIRST_CLASS_MESSAGING
 277     file->addAction(messageAction);
 278 #endif
 279     file->addSeparator();
 280     file->addAction(quitAction);
 281
 282     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 283     settings->addAction(encryptWalletAction);
 284     settings->addAction(changePassphraseAction);
 285     settings->addSeparator();
 286     settings->addAction(optionsAction);
 287
 288     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 289     help->addAction(aboutAction);
 290     help->addAction(aboutQtAction);
 291 }
 292
 293 void BitcoinGUI::createToolBars()
 294 {
 295     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 296     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 297     toolbar->addAction(overviewAction);
 298     toolbar->addAction(sendCoinsAction);
 299     toolbar->addAction(receiveCoinsAction);
 300     toolbar->addAction(historyAction);
 301     toolbar->addAction(addressBookAction);
 302 #ifdef FIRST_CLASS_MESSAGING
 303     toolbar->addAction(messageAction);
 304 #endif
 305
 306     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 307     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 308     toolbar2->addAction(exportAction);
 309 }
 310
 311 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 312 {
 313     this->clientModel = clientModel;
 314     if(clientModel)
 315     {
 316         if(clientModel->isTestNet())
 317         {
 318             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 319             setWindowTitle(title_testnet);
 320 #ifndef Q_WS_MAC
 321             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 322 #else
 323             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 324 #endif
 325             if(trayIcon)
 326             {
 327                 trayIcon->setToolTip(title_testnet);
 328                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 329             }
 330         }
 331
 332         // Keep up to date with client
 333         setNumConnections(clientModel->getNumConnections());
 334         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 335
 336         setNumBlocks(clientModel->getNumBlocks());
 337         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 338
 339         // Report errors from network/worker thread
 340         connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 341     }
 342 }
 343
 344 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 345 {
 346     this->walletModel = walletModel;
 347     if(walletModel)
 348     {
 349         // Report errors from wallet thread
 350         connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
 351
 352         // Put transaction list in tabs
 353         transactionView->setModel(walletModel);
 354
 355         overviewPage->setModel(walletModel);
 356         addressBookPage->setModel(walletModel->getAddressTableModel());
 357         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 358         sendCoinsPage->setModel(walletModel);
 359         messagePage->setModel(walletModel);
 360
 361         setEncryptionStatus(walletModel->getEncryptionStatus());
 362         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 363
 364         // Balloon popup for new transaction
 365         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 366                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 367
 368         // Ask for passphrase if needed
 369         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 370     }
 371 }
 372
 373 void BitcoinGUI::createTrayIcon()
 374 {
 375     QMenu *trayIconMenu;
 376 #ifndef Q_WS_MAC
 377     trayIcon = new QSystemTrayIcon(this);
 378     trayIconMenu = new QMenu(this);
 379     trayIcon->setContextMenu(trayIconMenu);
 380     trayIcon->setToolTip("Bitcoin client");
 381     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 382     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 383             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 384     trayIcon->show();
 385 #else
 386     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 387     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 388     connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
 389     trayIconMenu = dockIconHandler->dockMenu();
 390 #endif
 391
 392     // Configuration of the tray icon (or dock icon) icon menu
 393     trayIconMenu->addAction(openBitcoinAction);
 394     trayIconMenu->addSeparator();
 395     trayIconMenu->addAction(messageAction);
 396 #ifndef FIRST_CLASS_MESSAGING
 397     trayIconMenu->addSeparator();
 398 #endif
 399     trayIconMenu->addAction(receiveCoinsAction);
 400     trayIconMenu->addAction(sendCoinsAction);
 401     trayIconMenu->addSeparator();
 402     trayIconMenu->addAction(optionsAction);
 403 #ifndef Q_WS_MAC // This is built-in on Mac
 404     trayIconMenu->addSeparator();
 405     trayIconMenu->addAction(quitAction);
 406 #endif
 407
 408     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 409 }
 410
 411 #ifndef Q_WS_MAC
 412 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 413 {
 414     if(reason == QSystemTrayIcon::Trigger)
 415     {
 416         // Click on system tray icon triggers "open bitcoin"
 417         openBitcoinAction->trigger();
 418     }
 419 }
 420 #endif
 421
 422 void BitcoinGUI::optionsClicked()
 423 {
 424     if(!clientModel || !clientModel->getOptionsModel())
 425         return;
 426     OptionsDialog dlg;
 427     dlg.setModel(clientModel->getOptionsModel());
 428     dlg.exec();
 429 }
 430
 431 void BitcoinGUI::aboutClicked()
 432 {
 433     AboutDialog dlg;
 434     dlg.setModel(clientModel);
 435     dlg.exec();
 436 }
 437
 438 void BitcoinGUI::setNumConnections(int count)
 439 {
 440     QString icon;
 441     switch(count)
 442     {
 443     case 0: icon = ":/icons/connect_0"; break;
 444     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 445     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 446     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 447     default: icon = ":/icons/connect_4"; break;
 448     }
 449     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 450     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 451 }
 452
 453 void BitcoinGUI::setNumBlocks(int count)
 454 {
 455     if(!clientModel)
 456         return;
 457     int total = clientModel->getNumBlocksOfPeers();
 458     QString tooltip;
 459
 460     if(count < total)
 461     {
 462         if (clientModel->getStatusBarWarnings() == "")
 463         {
 464             progressBarLabel->setVisible(true);
 465             progressBarLabel->setText(tr("Synchronizing with network..."));
 466             progressBar->setVisible(true);
 467             progressBar->setMaximum(total);
 468             progressBar->setValue(count);
 469         }
 470         else
 471         {
 472             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 473             progressBarLabel->setVisible(true);
 474             progressBar->setVisible(false);
 475         }
 476         tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
 477     }
 478     else
 479     {
 480         if (clientModel->getStatusBarWarnings() == "")
 481             progressBarLabel->setVisible(false);
 482         else
 483         {
 484             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 485             progressBarLabel->setVisible(true);
 486         }
 487         progressBar->setVisible(false);
 488         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 489     }
 490
 491     QDateTime now = QDateTime::currentDateTime();
 492     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 493     int secs = lastBlockDate.secsTo(now);
 494     QString text;
 495
 496     // Represent time from last generated block in human readable text
 497     if(secs <= 0)
 498     {
 499         // Fully up to date. Leave text empty.
 500     }
 501     else if(secs < 60)
 502     {
 503         text = tr("%n second(s) ago","",secs);
 504     }
 505     else if(secs < 60*60)
 506     {
 507         text = tr("%n minute(s) ago","",secs/60);
 508     }
 509     else if(secs < 24*60*60)
 510     {
 511         text = tr("%n hour(s) ago","",secs/(60*60));
 512     }
 513     else
 514     {
 515         text = tr("%n day(s) ago","",secs/(60*60*24));
 516     }
 517
 518     // Set icon state: spinning if catching up, tick otherwise
 519     if(secs < 90*60 && count >= Checkpoints::GetTotalBlocksEstimate())
 520     {
 521         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 522         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 523     }
 524     else
 525     {
 526         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 527         labelBlocksIcon->setMovie(syncIconMovie);
 528         syncIconMovie->start();
 529     }
 530
 531     if(!text.isEmpty())
 532     {
 533         tooltip += QString("\n");
 534         tooltip += tr("Last received block was generated %1.").arg(text);
 535     }
 536
 537     labelBlocksIcon->setToolTip(tooltip);
 538     progressBarLabel->setToolTip(tooltip);
 539     progressBar->setToolTip(tooltip);
 540 }
 541
 542 void BitcoinGUI::refreshStatusBar()
 543 {
 544     /* Might display multiple times in the case of multiple alerts
 545     static QString prevStatusBar;
 546     QString newStatusBar = clientModel->getStatusBarWarnings();
 547     if (prevStatusBar != newStatusBar)
 548     {
 549         prevStatusBar = newStatusBar;
 550         error(tr("Network Alert"), newStatusBar);
 551     }*/
 552     setNumBlocks(clientModel->getNumBlocks());
 553 }
 554
 555 bool HACK_SHUTDOWN = false;
 556
 557 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 558 {
 559     // Report errors from network/worker thread
 560     if (modal)
 561     {
 562         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 563         if (HACK_SHUTDOWN)
 564             QMetaObject::invokeMethod(QCoreApplication::instance(), "quit", Qt::QueuedConnection);
 565     } else {
 566         notificator->notify(Notificator::Critical, title, message);
 567     }
 568 }
 569
 570 void BitcoinGUI::changeEvent(QEvent *e)
 571 {
 572     QMainWindow::changeEvent(e);
 573 #ifndef Q_WS_MAC // Ignored on Mac
 574     if(e->type() == QEvent::WindowStateChange)
 575     {
 576         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 577         {
 578             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 579             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 580             {
 581                 QTimer::singleShot(0, this, SLOT(hide()));
 582                 e->ignore();
 583             }
 584         }
 585     }
 586 #endif
 587 }
 588
 589 void BitcoinGUI::closeEvent(QCloseEvent *event)
 590 {
 591     if(clientModel)
 592     {
 593 #ifndef Q_WS_MAC // Ignored on Mac
 594         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 595            !clientModel->getOptionsModel()->getMinimizeOnClose())
 596         {
 597             qApp->quit();
 598         }
 599 #endif
 600     }
 601     QMainWindow::closeEvent(event);
 602 }
 603
 604 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 605 {
 606     QString strMessage =
 607         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 608           "which goes to the nodes that process your transaction and helps to support the network.  "
 609           "Do you want to pay the fee?").arg(
 610                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 611     QMessageBox::StandardButton retval = QMessageBox::question(
 612           this, tr("Sending..."), strMessage,
 613           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 614     *payFee = (retval == QMessageBox::Yes);
 615 }
 616
 617 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 618 {
 619     if(!walletModel || !clientModel)
 620         return;
 621     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 622     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 623                     .data(Qt::EditRole).toULongLong();
 624     if(!clientModel->inInitialBlockDownload())
 625     {
 626         // On new transaction, make an info balloon
 627         // Unless the initial block download is in progress, to prevent balloon-spam
 628         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 629                         .data().toString();
 630         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 631                         .data().toString();
 632         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 633                         .data().toString();
 634         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 635                             TransactionTableModel::ToAddress, parent)
 636                         .data(Qt::DecorationRole));
 637
 638         notificator->notify(Notificator::Information,
 639                             (amount)<0 ? tr("Sent transaction") :
 640                                          tr("Incoming transaction"),
 641                               tr("Date: %1\n"
 642                                  "Amount: %2\n"
 643                                  "Type: %3\n"
 644                                  "Address: %4\n")
 645                               .arg(date)
 646                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 647                               .arg(type)
 648                               .arg(address), icon);
 649     }
 650 }
 651
 652 void BitcoinGUI::gotoOverviewPage()
 653 {
 654     overviewAction->setChecked(true);
 655     centralWidget->setCurrentWidget(overviewPage);
 656
 657     exportAction->setEnabled(false);
 658     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 659 }
 660
 661 void BitcoinGUI::gotoHistoryPage()
 662 {
 663     historyAction->setChecked(true);
 664     centralWidget->setCurrentWidget(transactionsPage);
 665
 666     exportAction->setEnabled(true);
 667     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 668     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 669 }
 670
 671 void BitcoinGUI::gotoAddressBookPage()
 672 {
 673     addressBookAction->setChecked(true);
 674     centralWidget->setCurrentWidget(addressBookPage);
 675
 676     exportAction->setEnabled(true);
 677     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 678     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 679 }
 680
 681 void BitcoinGUI::gotoReceiveCoinsPage()
 682 {
 683     receiveCoinsAction->setChecked(true);
 684     centralWidget->setCurrentWidget(receiveCoinsPage);
 685
 686     exportAction->setEnabled(true);
 687     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 688     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 689 }
 690
 691 void BitcoinGUI::gotoSendCoinsPage()
 692 {
 693     sendCoinsAction->setChecked(true);
 694     centralWidget->setCurrentWidget(sendCoinsPage);
 695
 696     exportAction->setEnabled(false);
 697     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 698 }
 699
 700 void BitcoinGUI::gotoMessagePage()
 701 {
 702 #ifdef FIRST_CLASS_MESSAGING
 703     messageAction->setChecked(true);
 704     centralWidget->setCurrentWidget(messagePage);
 705
 706     exportAction->setEnabled(false);
 707     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 708 #else
 709     messagePage->show();
 710     messagePage->setFocus();
 711 #endif
 712 }
 713
 714 void BitcoinGUI::gotoMessagePage(QString addr)
 715 {
 716     gotoMessagePage();
 717     messagePage->setAddress(addr);
 718 }
 719
 720 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 721 {
 722     // Accept only URIs
 723     if(event->mimeData()->hasUrls())
 724         event->acceptProposedAction();
 725 }
 726
 727 void BitcoinGUI::dropEvent(QDropEvent *event)
 728 {
 729     if(event->mimeData()->hasUrls())
 730     {
 731         gotoSendCoinsPage();
 732         QList<QUrl> uris = event->mimeData()->urls();
 733         foreach(const QUrl &uri, uris)
 734         {
 735             sendCoinsPage->handleURI(uri.toString());
 736         }
 737     }
 738
 739     event->acceptProposedAction();
 740 }
 741
 742 void BitcoinGUI::handleURI(QString strURI)
 743 {
 744     gotoSendCoinsPage();
 745     sendCoinsPage->handleURI(strURI);
 746
 747     if(!isActiveWindow())
 748         activateWindow();
 749
 750     showNormalIfMinimized();
 751 }
 752
 753 void BitcoinGUI::setEncryptionStatus(int status)
 754 {
 755     switch(status)
 756     {
 757     case WalletModel::Unencrypted:
 758         labelEncryptionIcon->hide();
 759         encryptWalletAction->setChecked(false);
 760         changePassphraseAction->setEnabled(false);
 761         encryptWalletAction->setEnabled(true);
 762         break;
 763     case WalletModel::Unlocked:
 764         labelEncryptionIcon->show();
 765         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 766         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 767         encryptWalletAction->setChecked(true);
 768         changePassphraseAction->setEnabled(true);
 769         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 770         break;
 771     case WalletModel::Locked:
 772         labelEncryptionIcon->show();
 773         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 774         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 775         encryptWalletAction->setChecked(true);
 776         changePassphraseAction->setEnabled(true);
 777         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 778         break;
 779     }
 780 }
 781
 782 void BitcoinGUI::encryptWallet(bool status)
 783 {
 784     if(!walletModel)
 785         return;
 786     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 787                                      AskPassphraseDialog::Decrypt, this);
 788     dlg.setModel(walletModel);
 789     dlg.exec();
 790
 791     setEncryptionStatus(walletModel->getEncryptionStatus());
 792 }
 793
 794 void BitcoinGUI::backupWallet()
 795 {
 796     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
 797     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
 798     if(!filename.isEmpty()) {
 799         if(!walletModel->backupWallet(filename)) {
 800             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
 801         }
 802     }
 803 }
 804
 805 void BitcoinGUI::changePassphrase()
 806 {
 807     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 808     dlg.setModel(walletModel);
 809     dlg.exec();
 810 }
 811
 812 void BitcoinGUI::unlockWallet()
 813 {
 814     if(!walletModel)
 815         return;
 816     // Unlock wallet when requested by wallet model
 817     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 818     {
 819         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 820         dlg.setModel(walletModel);
 821         dlg.exec();
 822     }
 823 }
 824
 825 void BitcoinGUI::showNormalIfMinimized()
 826 {
 827     if(!isVisible()) // Show, if hidden
 828         show();
 829     if(isMinimized()) // Unminimize, if minimized
 830         showNormal();
 831 }