src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 ppcoin GUI.
   3  *
   4  * W.J. van der Laan 2011-2012
   5  * The Bitcoin Developers 2011-2012
   6  * The PPCoin Developers 2011-2012
   7  */
   8 #include "bitcoingui.h"
   9 #include "transactiontablemodel.h"
  10 #include "addressbookpage.h"
  11 #include "sendcoinsdialog.h"
  12 #include "messagepage.h"
  13 #include "optionsdialog.h"
  14 #include "aboutdialog.h"
  15 #include "clientmodel.h"
  16 #include "walletmodel.h"
  17 #include "editaddressdialog.h"
  18 #include "optionsmodel.h"
  19 #include "transactiondescdialog.h"
  20 #include "addresstablemodel.h"
  21 #include "transactionview.h"
  22 #include "overviewpage.h"
  23 #include "bitcoinunits.h"
  24 #include "guiconstants.h"
  25 #include "askpassphrasedialog.h"
  26 #include "notificator.h"
  27 #include "guiutil.h"
  28
  29 #ifdef Q_WS_MAC
  30 #include "macdockiconhandler.h"
  31 #endif
  32
  33 #include <QApplication>
  34 #include <QMainWindow>
  35 #include <QMenuBar>
  36 #include <QMenu>
  37 #include <QIcon>
  38 #include <QTabWidget>
  39 #include <QVBoxLayout>
  40 #include <QToolBar>
  41 #include <QStatusBar>
  42 #include <QLabel>
  43 #include <QLineEdit>
  44 #include <QPushButton>
  45 #include <QLocale>
  46 #include <QMessageBox>
  47 #include <QProgressBar>
  48 #include <QStackedWidget>
  49 #include <QDateTime>
  50 #include <QMovie>
  51 #include <QFileDialog>
  52 #include <QDesktopServices>
  53 #include <QTimer>
  54
  55 #include <QDragEnterEvent>
  56 #include <QUrl>
  57
  58 #include <iostream>
  59
  60 BitcoinGUI::BitcoinGUI(QWidget *parent):
  61     QMainWindow(parent),
  62     clientModel(0),
  63     walletModel(0),
  64     encryptWalletAction(0),
  65     changePassphraseAction(0),
  66     aboutQtAction(0),
  67     trayIcon(0),
  68     notificator(0)
  69 {
  70     resize(850, 550);
  71     setWindowTitle(tr("PPCoin Wallet"));
  72 #ifndef Q_WS_MAC
  73     setWindowIcon(QIcon(":icons/bitcoin"));
  74 #else
  75     setUnifiedTitleAndToolBarOnMac(true);
  76     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  77 #endif
  78     // Accept D&D of URIs
  79     setAcceptDrops(true);
  80
  81     // Create actions for the toolbar, menu bar and tray/dock icon
  82     createActions();
  83
  84     // Create application menu bar
  85     createMenuBar();
  86
  87     // Create the toolbars
  88     createToolBars();
  89
  90     // Create the tray icon (or setup the dock icon)
  91     createTrayIcon();
  92
  93     // Create tabs
  94     overviewPage = new OverviewPage();
  95
  96     transactionsPage = new QWidget(this);
  97     QVBoxLayout *vbox = new QVBoxLayout();
  98     transactionView = new TransactionView(this);
  99     vbox->addWidget(transactionView);
 100     transactionsPage->setLayout(vbox);
 101
 102     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 103
 104     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 105
 106     sendCoinsPage = new SendCoinsDialog(this);
 107
 108     messagePage = new MessagePage(this);
 109
 110     centralWidget = new QStackedWidget(this);
 111     centralWidget->addWidget(overviewPage);
 112     centralWidget->addWidget(transactionsPage);
 113     centralWidget->addWidget(addressBookPage);
 114     centralWidget->addWidget(receiveCoinsPage);
 115     centralWidget->addWidget(sendCoinsPage);
 116 #ifdef FIRST_CLASS_MESSAGING
 117     centralWidget->addWidget(messagePage);
 118 #endif
 119     setCentralWidget(centralWidget);
 120
 121     // Create status bar
 122     statusBar();
 123
 124     // Status bar notification icons
 125     QFrame *frameBlocks = new QFrame();
 126     frameBlocks->setContentsMargins(0,0,0,0);
 127     frameBlocks->setMinimumWidth(56);
 128     frameBlocks->setMaximumWidth(56);
 129     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 130     frameBlocksLayout->setContentsMargins(3,0,3,0);
 131     frameBlocksLayout->setSpacing(3);
 132     labelEncryptionIcon = new QLabel();
 133     labelConnectionsIcon = new QLabel();
 134     labelBlocksIcon = new QLabel();
 135     frameBlocksLayout->addStretch();
 136     frameBlocksLayout->addWidget(labelEncryptionIcon);
 137     frameBlocksLayout->addStretch();
 138     frameBlocksLayout->addWidget(labelConnectionsIcon);
 139     frameBlocksLayout->addStretch();
 140     frameBlocksLayout->addWidget(labelBlocksIcon);
 141     frameBlocksLayout->addStretch();
 142
 143     // Progress bar and label for blocks download
 144     progressBarLabel = new QLabel();
 145     progressBarLabel->setVisible(false);
 146     progressBar = new QProgressBar();
 147     progressBar->setAlignment(Qt::AlignCenter);
 148     progressBar->setVisible(false);
 149
 150     statusBar()->addWidget(progressBarLabel);
 151     statusBar()->addWidget(progressBar);
 152     statusBar()->addPermanentWidget(frameBlocks);
 153
 154     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 155
 156     // Clicking on a transaction on the overview page simply sends you to transaction history page
 157     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 158
 159     // Doubleclicking on a transaction on the transaction history page shows details
 160     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 161
 162     gotoOverviewPage();
 163 }
 164
 165 BitcoinGUI::~BitcoinGUI()
 166 {
 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     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("Show/Hide &Bitcoin"), this);
 240     toggleHideAction->setToolTip(tr("Show or hide 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(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 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, bool)), this, SLOT(error(QString,QString,bool)));
 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,bool)), this, SLOT(error(QString,QString,bool)));
 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(tr("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     trayIconMenu = dockIconHandler->dockMenu();
 388 #endif
 389
 390     // Configuration of the tray icon (or dock icon) icon menu
 391     trayIconMenu->addAction(toggleHideAction);
 392     trayIconMenu->addSeparator();
 393     trayIconMenu->addAction(messageAction);
 394 #ifndef FIRST_CLASS_MESSAGING
 395     trayIconMenu->addSeparator();
 396 #endif
 397     trayIconMenu->addAction(receiveCoinsAction);
 398     trayIconMenu->addAction(sendCoinsAction);
 399     trayIconMenu->addSeparator();
 400     trayIconMenu->addAction(optionsAction);
 401 #ifndef Q_WS_MAC // This is built-in on Mac
 402     trayIconMenu->addSeparator();
 403     trayIconMenu->addAction(quitAction);
 404 #endif
 405
 406     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 407 }
 408
 409 #ifndef Q_WS_MAC
 410 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 411 {
 412     if(reason == QSystemTrayIcon::Trigger)
 413     {
 414         // Click on system tray icon triggers "show/hide bitcoin"
 415         toggleHideAction->trigger();
 416     }
 417 }
 418 #endif
 419
 420 void BitcoinGUI::toggleHidden()
 421 {
 422     // activateWindow() (sometimes) helps with keyboard focus on Windows
 423     if (isHidden())
 424     {
 425         show();
 426         activateWindow();
 427     }
 428     else if (isMinimized())
 429     {
 430         showNormal();
 431         activateWindow();
 432     }
 433     else if (GUIUtil::isObscured(this))
 434     {
 435         raise();
 436         activateWindow();
 437     }
 438     else
 439         hide();
 440 }
 441
 442 void BitcoinGUI::optionsClicked()
 443 {
 444     if(!clientModel || !clientModel->getOptionsModel())
 445         return;
 446     OptionsDialog dlg;
 447     dlg.setModel(clientModel->getOptionsModel());
 448     dlg.exec();
 449 }
 450
 451 void BitcoinGUI::aboutClicked()
 452 {
 453     AboutDialog dlg;
 454     dlg.setModel(clientModel);
 455     dlg.exec();
 456 }
 457
 458 void BitcoinGUI::setNumConnections(int count)
 459 {
 460     QString icon;
 461     switch(count)
 462     {
 463     case 0: icon = ":/icons/connect_0"; break;
 464     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 465     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 466     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 467     default: icon = ":/icons/connect_4"; break;
 468     }
 469     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 470     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 471 }
 472
 473 void BitcoinGUI::setNumBlocks(int count)
 474 {
 475     // don't show / hide progressBar and it's label if we have no connection(s) to the network
 476     if (!clientModel || clientModel->getNumConnections() == 0)
 477     {
 478         progressBarLabel->setVisible(false);
 479         progressBar->setVisible(false);
 480
 481         return;
 482     }
 483
 484     int nTotalBlocks = clientModel->getNumBlocksOfPeers();
 485     QString tooltip;
 486
 487     if(count < nTotalBlocks)
 488     {
 489         int nRemainingBlocks = nTotalBlocks - count;
 490         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 491
 492         if (clientModel->getStatusBarWarnings() == "")
 493         {
 494             progressBarLabel->setText(tr("Synchronizing with network..."));
 495             progressBarLabel->setVisible(true);
 496             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 497             progressBar->setMaximum(nTotalBlocks);
 498             progressBar->setValue(count);
 499             progressBar->setVisible(true);
 500         }
 501         else
 502         {
 503             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 504             progressBarLabel->setVisible(true);
 505             progressBar->setVisible(false);
 506         }
 507         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 508     }
 509     else
 510     {
 511         if (clientModel->getStatusBarWarnings() == "")
 512             progressBarLabel->setVisible(false);
 513         else
 514         {
 515             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 516             progressBarLabel->setVisible(true);
 517         }
 518         progressBar->setVisible(false);
 519         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 520     }
 521
 522     QDateTime now = QDateTime::currentDateTime();
 523     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 524     int secs = lastBlockDate.secsTo(now);
 525     QString text;
 526
 527     // Represent time from last generated block in human readable text
 528     if(secs <= 0)
 529     {
 530         // Fully up to date. Leave text empty.
 531     }
 532     else if(secs < 60)
 533     {
 534         text = tr("%n second(s) ago","",secs);
 535     }
 536     else if(secs < 60*60)
 537     {
 538         text = tr("%n minute(s) ago","",secs/60);
 539     }
 540     else if(secs < 24*60*60)
 541     {
 542         text = tr("%n hour(s) ago","",secs/(60*60));
 543     }
 544     else
 545     {
 546         text = tr("%n day(s) ago","",secs/(60*60*24));
 547     }
 548
 549     // Set icon state: spinning if catching up, tick otherwise
 550     if(secs < 90*60 && count >= nTotalBlocks)
 551     {
 552         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 553         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 554     }
 555     else
 556     {
 557         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 558         labelBlocksIcon->setMovie(syncIconMovie);
 559         syncIconMovie->start();
 560     }
 561
 562     if(!text.isEmpty())
 563     {
 564         tooltip += QString("\n");
 565         tooltip += tr("Last received block was generated %1.").arg(text);
 566     }
 567
 568     labelBlocksIcon->setToolTip(tooltip);
 569     progressBarLabel->setToolTip(tooltip);
 570     progressBar->setToolTip(tooltip);
 571 }
 572
 573 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 574 {
 575     // Report errors from network/worker thread
 576     if(modal)
 577     {
 578         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 579     } else {
 580         notificator->notify(Notificator::Critical, title, message);
 581     }
 582 }
 583
 584 void BitcoinGUI::changeEvent(QEvent *e)
 585 {
 586     QMainWindow::changeEvent(e);
 587 #ifndef Q_WS_MAC // Ignored on Mac
 588     if(e->type() == QEvent::WindowStateChange)
 589     {
 590         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 591         {
 592             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 593             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 594             {
 595                 QTimer::singleShot(0, this, SLOT(hide()));
 596                 e->ignore();
 597             }
 598         }
 599     }
 600 #endif
 601 }
 602
 603 void BitcoinGUI::closeEvent(QCloseEvent *event)
 604 {
 605     if(clientModel)
 606     {
 607 #ifndef Q_WS_MAC // Ignored on Mac
 608         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 609            !clientModel->getOptionsModel()->getMinimizeOnClose())
 610         {
 611             qApp->quit();
 612         }
 613 #endif
 614     }
 615     QMainWindow::closeEvent(event);
 616 }
 617
 618 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 619 {
 620     QString strMessage =
 621         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 622           "which goes to the nodes that process your transaction and helps to support the network.  "
 623           "Do you want to pay the fee?").arg(
 624                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 625     QMessageBox::StandardButton retval = QMessageBox::question(
 626           this, tr("Sending..."), strMessage,
 627           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 628     *payFee = (retval == QMessageBox::Yes);
 629 }
 630
 631 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 632 {
 633     if(!walletModel || !clientModel)
 634         return;
 635     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 636     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 637                     .data(Qt::EditRole).toULongLong();
 638     if(!clientModel->inInitialBlockDownload())
 639     {
 640         // On new transaction, make an info balloon
 641         // Unless the initial block download is in progress, to prevent balloon-spam
 642         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 643                         .data().toString();
 644         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 645                         .data().toString();
 646         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 647                         .data().toString();
 648         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 649                             TransactionTableModel::ToAddress, parent)
 650                         .data(Qt::DecorationRole));
 651
 652         notificator->notify(Notificator::Information,
 653                             (amount)<0 ? tr("Sent transaction") :
 654                                          tr("Incoming transaction"),
 655                               tr("Date: %1\n"
 656                                  "Amount: %2\n"
 657                                  "Type: %3\n"
 658                                  "Address: %4\n")
 659                               .arg(date)
 660                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 661                               .arg(type)
 662                               .arg(address), icon);
 663     }
 664 }
 665
 666 void BitcoinGUI::gotoOverviewPage()
 667 {
 668     overviewAction->setChecked(true);
 669     centralWidget->setCurrentWidget(overviewPage);
 670
 671     exportAction->setEnabled(false);
 672     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 673 }
 674
 675 void BitcoinGUI::gotoHistoryPage()
 676 {
 677     historyAction->setChecked(true);
 678     centralWidget->setCurrentWidget(transactionsPage);
 679
 680     exportAction->setEnabled(true);
 681     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 682     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 683 }
 684
 685 void BitcoinGUI::gotoAddressBookPage()
 686 {
 687     addressBookAction->setChecked(true);
 688     centralWidget->setCurrentWidget(addressBookPage);
 689
 690     exportAction->setEnabled(true);
 691     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 692     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 693 }
 694
 695 void BitcoinGUI::gotoReceiveCoinsPage()
 696 {
 697     receiveCoinsAction->setChecked(true);
 698     centralWidget->setCurrentWidget(receiveCoinsPage);
 699
 700     exportAction->setEnabled(true);
 701     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 702     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 703 }
 704
 705 void BitcoinGUI::gotoSendCoinsPage()
 706 {
 707     sendCoinsAction->setChecked(true);
 708     centralWidget->setCurrentWidget(sendCoinsPage);
 709
 710     exportAction->setEnabled(false);
 711     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 712 }
 713
 714 void BitcoinGUI::gotoMessagePage()
 715 {
 716 #ifdef FIRST_CLASS_MESSAGING
 717     messageAction->setChecked(true);
 718     centralWidget->setCurrentWidget(messagePage);
 719
 720     exportAction->setEnabled(false);
 721     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 722 #else
 723     messagePage->show();
 724     messagePage->setFocus();
 725 #endif
 726 }
 727
 728 void BitcoinGUI::gotoMessagePage(QString addr)
 729 {
 730     gotoMessagePage();
 731     messagePage->setAddress(addr);
 732 }
 733
 734 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 735 {
 736     // Accept only URIs
 737     if(event->mimeData()->hasUrls())
 738         event->acceptProposedAction();
 739 }
 740
 741 void BitcoinGUI::dropEvent(QDropEvent *event)
 742 {
 743     if(event->mimeData()->hasUrls())
 744     {
 745         gotoSendCoinsPage();
 746         QList<QUrl> uris = event->mimeData()->urls();
 747         foreach(const QUrl &uri, uris)
 748         {
 749             sendCoinsPage->handleURI(uri.toString());
 750         }
 751     }
 752
 753     event->acceptProposedAction();
 754 }
 755
 756 void BitcoinGUI::handleURI(QString strURI)
 757 {
 758     gotoSendCoinsPage();
 759     sendCoinsPage->handleURI(strURI);
 760
 761     if(!isActiveWindow())
 762         activateWindow();
 763
 764     showNormalIfMinimized();
 765 }
 766
 767 void BitcoinGUI::setEncryptionStatus(int status)
 768 {
 769     switch(status)
 770     {
 771     case WalletModel::Unencrypted:
 772         labelEncryptionIcon->hide();
 773         encryptWalletAction->setChecked(false);
 774         changePassphraseAction->setEnabled(false);
 775         encryptWalletAction->setEnabled(true);
 776         break;
 777     case WalletModel::Unlocked:
 778         labelEncryptionIcon->show();
 779         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 780         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 781         encryptWalletAction->setChecked(true);
 782         changePassphraseAction->setEnabled(true);
 783         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 784         break;
 785     case WalletModel::Locked:
 786         labelEncryptionIcon->show();
 787         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 788         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 789         encryptWalletAction->setChecked(true);
 790         changePassphraseAction->setEnabled(true);
 791         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 792         break;
 793     }
 794 }
 795
 796 void BitcoinGUI::encryptWallet(bool status)
 797 {
 798     if(!walletModel)
 799         return;
 800     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 801                                      AskPassphraseDialog::Decrypt, this);
 802     dlg.setModel(walletModel);
 803     dlg.exec();
 804
 805     setEncryptionStatus(walletModel->getEncryptionStatus());
 806 }
 807
 808 void BitcoinGUI::backupWallet()
 809 {
 810     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
 811     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
 812     if(!filename.isEmpty()) {
 813         if(!walletModel->backupWallet(filename)) {
 814             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
 815         }
 816     }
 817 }
 818
 819 void BitcoinGUI::changePassphrase()
 820 {
 821     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 822     dlg.setModel(walletModel);
 823     dlg.exec();
 824 }
 825
 826 void BitcoinGUI::unlockWallet()
 827 {
 828     if(!walletModel)
 829         return;
 830     // Unlock wallet when requested by wallet model
 831     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 832     {
 833         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 834         dlg.setModel(walletModel);
 835         dlg.exec();
 836     }
 837 }
 838
 839 void BitcoinGUI::showNormalIfMinimized()
 840 {
 841     if(!isVisible()) // Show, if hidden
 842         show();
 843     if(isMinimized()) // Unminimize, if minimized
 844         showNormal();
 845 }