src/qt/bitcoingui.cpp

   1 // Copyright (c) 2011-2016 The Bitcoin Core developers
   2 // Distributed under the MIT software license, see the accompanying
   3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   4
   5 #if defined(HAVE_CONFIG_H)
   6 #include "config/bitcoin-config.h"
   7 #endif
   8
   9 #include "bitcoingui.h"
  10
  11 #include "bitcoinunits.h"
  12 #include "clientmodel.h"
  13 #include "guiconstants.h"
  14 #include "guiutil.h"
  15 #include "modaloverlay.h"
  16 #include "networkstyle.h"
  17 #include "notificator.h"
  18 #include "openuridialog.h"
  19 #include "optionsdialog.h"
  20 #include "optionsmodel.h"
  21 #include "platformstyle.h"
  22 #include "rpcconsole.h"
  23 #include "utilitydialog.h"
  24
  25 #ifdef ENABLE_WALLET
  26 #include "walletframe.h"
  27 #include "walletmodel.h"
  28 #endif // ENABLE_WALLET
  29
  30 #ifdef Q_OS_MAC
  31 #include "macdockiconhandler.h"
  32 #endif
  33
  34 #include "chainparams.h"
  35 #include "init.h"
  36 #include "ui_interface.h"
  37 #include "util.h"
  38
  39 #include <iostream>
  40
  41 #include <QAction>
  42 #include <QApplication>
  43 #include <QDateTime>
  44 #include <QDesktopWidget>
  45 #include <QDragEnterEvent>
  46 #include <QListWidget>
  47 #include <QMenuBar>
  48 #include <QMessageBox>
  49 #include <QMimeData>
  50 #include <QProgressDialog>
  51 #include <QSettings>
  52 #include <QShortcut>
  53 #include <QStackedWidget>
  54 #include <QStatusBar>
  55 #include <QStyle>
  56 #include <QTimer>
  57 #include <QToolBar>
  58 #include <QVBoxLayout>
  59
  60 #if QT_VERSION < 0x050000
  61 #include <QTextDocument>
  62 #include <QUrl>
  63 #else
  64 #include <QUrlQuery>
  65 #endif
  66
  67 const std::string BitcoinGUI::DEFAULT_UIPLATFORM =
  68 #if defined(Q_OS_MAC)
  69         "macosx"
  70 #elif defined(Q_OS_WIN)
  71         "windows"
  72 #else
  73         "other"
  74 #endif
  75         ;
  76
  77 /** Display name for default wallet name. Uses tilde to avoid name
  78  * collisions in the future with additional wallets */
  79 const QString BitcoinGUI::DEFAULT_WALLET = "~Default";
  80
  81 BitcoinGUI::BitcoinGUI(const PlatformStyle *_platformStyle, const NetworkStyle *networkStyle, QWidget *parent) :
  82     QMainWindow(parent),
  83     enableWallet(false),
  84     clientModel(0),
  85     walletFrame(0),
  86     unitDisplayControl(0),
  87     labelWalletEncryptionIcon(0),
  88     labelWalletHDStatusIcon(0),
  89     connectionsControl(0),
  90     labelBlocksIcon(0),
  91     progressBarLabel(0),
  92     progressBar(0),
  93     progressDialog(0),
  94     appMenuBar(0),
  95     overviewAction(0),
  96     historyAction(0),
  97     quitAction(0),
  98     sendCoinsAction(0),
  99     sendCoinsMenuAction(0),
 100     usedSendingAddressesAction(0),
 101     usedReceivingAddressesAction(0),
 102     signMessageAction(0),
 103     verifyMessageAction(0),
 104     aboutAction(0),
 105     receiveCoinsAction(0),
 106     receiveCoinsMenuAction(0),
 107     optionsAction(0),
 108     toggleHideAction(0),
 109     encryptWalletAction(0),
 110     backupWalletAction(0),
 111     changePassphraseAction(0),
 112     aboutQtAction(0),
 113     openRPCConsoleAction(0),
 114     openAction(0),
 115     showHelpMessageAction(0),
 116     trayIcon(0),
 117     trayIconMenu(0),
 118     notificator(0),
 119     rpcConsole(0),
 120     helpMessageDialog(0),
 121     modalOverlay(0),
 122     prevBlocks(0),
 123     spinnerFrame(0),
 124     platformStyle(_platformStyle)
 125 {
 126     GUIUtil::restoreWindowGeometry("nWindow", QSize(850, 550), this);
 127
 128     QString windowTitle = tr(PACKAGE_NAME) + " - ";
 129 #ifdef ENABLE_WALLET
 130     enableWallet = WalletModel::isWalletEnabled();
 131 #endif // ENABLE_WALLET
 132     if(enableWallet)
 133     {
 134         windowTitle += tr("Wallet");
 135     } else {
 136         windowTitle += tr("Node");
 137     }
 138     windowTitle += " " + networkStyle->getTitleAddText();
 139 #ifndef Q_OS_MAC
 140     QApplication::setWindowIcon(networkStyle->getTrayAndWindowIcon());
 141     setWindowIcon(networkStyle->getTrayAndWindowIcon());
 142 #else
 143     MacDockIconHandler::instance()->setIcon(networkStyle->getAppIcon());
 144 #endif
 145     setWindowTitle(windowTitle);
 146
 147 #if defined(Q_OS_MAC) && QT_VERSION < 0x050000
 148     // This property is not implemented in Qt 5. Setting it has no effect.
 149     // A replacement API (QtMacUnifiedToolBar) is available in QtMacExtras.
 150     setUnifiedTitleAndToolBarOnMac(true);
 151 #endif
 152
 153     rpcConsole = new RPCConsole(_platformStyle, 0);
 154     helpMessageDialog = new HelpMessageDialog(this, false);
 155 #ifdef ENABLE_WALLET
 156     if(enableWallet)
 157     {
 158         /** Create wallet frame and make it the central widget */
 159         walletFrame = new WalletFrame(_platformStyle, this);
 160         setCentralWidget(walletFrame);
 161     } else
 162 #endif // ENABLE_WALLET
 163     {
 164         /* When compiled without wallet or -disablewallet is provided,
 165          * the central widget is the rpc console.
 166          */
 167         setCentralWidget(rpcConsole);
 168     }
 169
 170     // Accept D&D of URIs
 171     setAcceptDrops(true);
 172
 173     // Create actions for the toolbar, menu bar and tray/dock icon
 174     // Needs walletFrame to be initialized
 175     createActions();
 176
 177     // Create application menu bar
 178     createMenuBar();
 179
 180     // Create the toolbars
 181     createToolBars();
 182
 183     // Create system tray icon and notification
 184     createTrayIcon(networkStyle);
 185
 186     // Create status bar
 187     statusBar();
 188
 189     // Disable size grip because it looks ugly and nobody needs it
 190     statusBar()->setSizeGripEnabled(false);
 191
 192     // Status bar notification icons
 193     QFrame *frameBlocks = new QFrame();
 194     frameBlocks->setContentsMargins(0,0,0,0);
 195     frameBlocks->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
 196     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 197     frameBlocksLayout->setContentsMargins(3,0,3,0);
 198     frameBlocksLayout->setSpacing(3);
 199     unitDisplayControl = new UnitDisplayStatusBarControl(platformStyle);
 200     labelWalletEncryptionIcon = new QLabel();
 201     labelWalletHDStatusIcon = new QLabel();
 202     connectionsControl = new GUIUtil::ClickableLabel();
 203     labelBlocksIcon = new GUIUtil::ClickableLabel();
 204     if(enableWallet)
 205     {
 206         frameBlocksLayout->addStretch();
 207         frameBlocksLayout->addWidget(unitDisplayControl);
 208         frameBlocksLayout->addStretch();
 209         frameBlocksLayout->addWidget(labelWalletEncryptionIcon);
 210         frameBlocksLayout->addWidget(labelWalletHDStatusIcon);
 211     }
 212     frameBlocksLayout->addStretch();
 213     frameBlocksLayout->addWidget(connectionsControl);
 214     frameBlocksLayout->addStretch();
 215     frameBlocksLayout->addWidget(labelBlocksIcon);
 216     frameBlocksLayout->addStretch();
 217
 218     // Progress bar and label for blocks download
 219     progressBarLabel = new QLabel();
 220     progressBarLabel->setVisible(false);
 221     progressBar = new GUIUtil::ProgressBar();
 222     progressBar->setAlignment(Qt::AlignCenter);
 223     progressBar->setVisible(false);
 224
 225     // Override style sheet for progress bar for styles that have a segmented progress bar,
 226     // as they make the text unreadable (workaround for issue #1071)
 227     // See https://qt-project.org/doc/qt-4.8/gallery.html
 228     QString curStyle = QApplication::style()->metaObject()->className();
 229     if(curStyle == "QWindowsStyle" || curStyle == "QWindowsXPStyle")
 230     {
 231         progressBar->setStyleSheet("QProgressBar { background-color: #e8e8e8; border: 1px solid grey; border-radius: 7px; padding: 1px; text-align: center; } QProgressBar::chunk { background: QLinearGradient(x1: 0, y1: 0, x2: 1, y2: 0, stop: 0 #FF8000, stop: 1 orange); border-radius: 7px; margin: 0px; }");
 232     }
 233
 234     statusBar()->addWidget(progressBarLabel);
 235     statusBar()->addWidget(progressBar);
 236     statusBar()->addPermanentWidget(frameBlocks);
 237
 238     // Install event filter to be able to catch status tip events (QEvent::StatusTip)
 239     this->installEventFilter(this);
 240
 241     // Initially wallet actions should be disabled
 242     setWalletActionsEnabled(false);
 243
 244     // Subscribe to notifications from core
 245     subscribeToCoreSignals();
 246
 247     connect(connectionsControl, SIGNAL(clicked(QPoint)), this, SLOT(toggleNetworkActive()));
 248
 249     modalOverlay = new ModalOverlay(this->centralWidget());
 250 #ifdef ENABLE_WALLET
 251     if(enableWallet) {
 252         connect(walletFrame, SIGNAL(requestedSyncWarningInfo()), this, SLOT(showModalOverlay()));
 253         connect(labelBlocksIcon, SIGNAL(clicked(QPoint)), this, SLOT(showModalOverlay()));
 254         connect(progressBar, SIGNAL(clicked(QPoint)), this, SLOT(showModalOverlay()));
 255     }
 256 #endif
 257 }
 258
 259 BitcoinGUI::~BitcoinGUI()
 260 {
 261     // Unsubscribe from notifications from core
 262     unsubscribeFromCoreSignals();
 263
 264     GUIUtil::saveWindowGeometry("nWindow", this);
 265     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 266         trayIcon->hide();
 267 #ifdef Q_OS_MAC
 268     delete appMenuBar;
 269     MacDockIconHandler::cleanup();
 270 #endif
 271
 272     delete rpcConsole;
 273 }
 274
 275 void BitcoinGUI::createActions()
 276 {
 277     QActionGroup *tabGroup = new QActionGroup(this);
 278
 279     overviewAction = new QAction(platformStyle->SingleColorIcon(":/icons/overview"), tr("&Overview"), this);
 280     overviewAction->setStatusTip(tr("Show general overview of wallet"));
 281     overviewAction->setToolTip(overviewAction->statusTip());
 282     overviewAction->setCheckable(true);
 283     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 284     tabGroup->addAction(overviewAction);
 285
 286     sendCoinsAction = new QAction(platformStyle->SingleColorIcon(":/icons/send"), tr("&Send"), this);
 287     sendCoinsAction->setStatusTip(tr("Send coins to a Bitcoin address"));
 288     sendCoinsAction->setToolTip(sendCoinsAction->statusTip());
 289     sendCoinsAction->setCheckable(true);
 290     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 291     tabGroup->addAction(sendCoinsAction);
 292
 293     sendCoinsMenuAction = new QAction(platformStyle->TextColorIcon(":/icons/send"), sendCoinsAction->text(), this);
 294     sendCoinsMenuAction->setStatusTip(sendCoinsAction->statusTip());
 295     sendCoinsMenuAction->setToolTip(sendCoinsMenuAction->statusTip());
 296
 297     receiveCoinsAction = new QAction(platformStyle->SingleColorIcon(":/icons/receiving_addresses"), tr("&Receive"), this);
 298     receiveCoinsAction->setStatusTip(tr("Request payments (generates QR codes and bitcoin: URIs)"));
 299     receiveCoinsAction->setToolTip(receiveCoinsAction->statusTip());
 300     receiveCoinsAction->setCheckable(true);
 301     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 302     tabGroup->addAction(receiveCoinsAction);
 303
 304     receiveCoinsMenuAction = new QAction(platformStyle->TextColorIcon(":/icons/receiving_addresses"), receiveCoinsAction->text(), this);
 305     receiveCoinsMenuAction->setStatusTip(receiveCoinsAction->statusTip());
 306     receiveCoinsMenuAction->setToolTip(receiveCoinsMenuAction->statusTip());
 307
 308     historyAction = new QAction(platformStyle->SingleColorIcon(":/icons/history"), tr("&Transactions"), this);
 309     historyAction->setStatusTip(tr("Browse transaction history"));
 310     historyAction->setToolTip(historyAction->statusTip());
 311     historyAction->setCheckable(true);
 312     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 313     tabGroup->addAction(historyAction);
 314
 315 #ifdef ENABLE_WALLET
 316     // These showNormalIfMinimized are needed because Send Coins and Receive Coins
 317     // can be triggered from the tray menu, and need to show the GUI to be useful.
 318     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 319     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 320     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 321     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 322     connect(sendCoinsMenuAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 323     connect(sendCoinsMenuAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 324     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 325     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 326     connect(receiveCoinsMenuAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 327     connect(receiveCoinsMenuAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 328     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 329     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 330 #endif // ENABLE_WALLET
 331
 332     quitAction = new QAction(platformStyle->TextColorIcon(":/icons/quit"), tr("E&xit"), this);
 333     quitAction->setStatusTip(tr("Quit application"));
 334     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 335     quitAction->setMenuRole(QAction::QuitRole);
 336     aboutAction = new QAction(platformStyle->TextColorIcon(":/icons/about"), tr("&About %1").arg(tr(PACKAGE_NAME)), this);
 337     aboutAction->setStatusTip(tr("Show information about %1").arg(tr(PACKAGE_NAME)));
 338     aboutAction->setMenuRole(QAction::AboutRole);
 339     aboutAction->setEnabled(false);
 340     aboutQtAction = new QAction(platformStyle->TextColorIcon(":/icons/about_qt"), tr("About &Qt"), this);
 341     aboutQtAction->setStatusTip(tr("Show information about Qt"));
 342     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 343     optionsAction = new QAction(platformStyle->TextColorIcon(":/icons/options"), tr("&Options..."), this);
 344     optionsAction->setStatusTip(tr("Modify configuration options for %1").arg(tr(PACKAGE_NAME)));
 345     optionsAction->setMenuRole(QAction::PreferencesRole);
 346     optionsAction->setEnabled(false);
 347     toggleHideAction = new QAction(platformStyle->TextColorIcon(":/icons/about"), tr("&Show / Hide"), this);
 348     toggleHideAction->setStatusTip(tr("Show or hide the main Window"));
 349
 350     encryptWalletAction = new QAction(platformStyle->TextColorIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
 351     encryptWalletAction->setStatusTip(tr("Encrypt the private keys that belong to your wallet"));
 352     encryptWalletAction->setCheckable(true);
 353     backupWalletAction = new QAction(platformStyle->TextColorIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
 354     backupWalletAction->setStatusTip(tr("Backup wallet to another location"));
 355     changePassphraseAction = new QAction(platformStyle->TextColorIcon(":/icons/key"), tr("&Change Passphrase..."), this);
 356     changePassphraseAction->setStatusTip(tr("Change the passphrase used for wallet encryption"));
 357     signMessageAction = new QAction(platformStyle->TextColorIcon(":/icons/edit"), tr("Sign &message..."), this);
 358     signMessageAction->setStatusTip(tr("Sign messages with your Bitcoin addresses to prove you own them"));
 359     verifyMessageAction = new QAction(platformStyle->TextColorIcon(":/icons/verify"), tr("&Verify message..."), this);
 360     verifyMessageAction->setStatusTip(tr("Verify messages to ensure they were signed with specified Bitcoin addresses"));
 361
 362     openRPCConsoleAction = new QAction(platformStyle->TextColorIcon(":/icons/debugwindow"), tr("&Debug window"), this);
 363     openRPCConsoleAction->setStatusTip(tr("Open debugging and diagnostic console"));
 364     // initially disable the debug window menu item
 365     openRPCConsoleAction->setEnabled(false);
 366
 367     usedSendingAddressesAction = new QAction(platformStyle->TextColorIcon(":/icons/address-book"), tr("&Sending addresses..."), this);
 368     usedSendingAddressesAction->setStatusTip(tr("Show the list of used sending addresses and labels"));
 369     usedReceivingAddressesAction = new QAction(platformStyle->TextColorIcon(":/icons/address-book"), tr("&Receiving addresses..."), this);
 370     usedReceivingAddressesAction->setStatusTip(tr("Show the list of used receiving addresses and labels"));
 371
 372     openAction = new QAction(platformStyle->TextColorIcon(":/icons/open"), tr("Open &URI..."), this);
 373     openAction->setStatusTip(tr("Open a bitcoin: URI or payment request"));
 374
 375     showHelpMessageAction = new QAction(platformStyle->TextColorIcon(":/icons/info"), tr("&Command-line options"), this);
 376     showHelpMessageAction->setMenuRole(QAction::NoRole);
 377     showHelpMessageAction->setStatusTip(tr("Show the %1 help message to get a list with possible Bitcoin command-line options").arg(tr(PACKAGE_NAME)));
 378
 379     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 380     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 381     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 382     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 383     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 384     connect(showHelpMessageAction, SIGNAL(triggered()), this, SLOT(showHelpMessageClicked()));
 385     connect(openRPCConsoleAction, SIGNAL(triggered()), this, SLOT(showDebugWindow()));
 386     // prevents an open debug window from becoming stuck/unusable on client shutdown
 387     connect(quitAction, SIGNAL(triggered()), rpcConsole, SLOT(hide()));
 388
 389 #ifdef ENABLE_WALLET
 390     if(walletFrame)
 391     {
 392         connect(encryptWalletAction, SIGNAL(triggered(bool)), walletFrame, SLOT(encryptWallet(bool)));
 393         connect(backupWalletAction, SIGNAL(triggered()), walletFrame, SLOT(backupWallet()));
 394         connect(changePassphraseAction, SIGNAL(triggered()), walletFrame, SLOT(changePassphrase()));
 395         connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
 396         connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
 397         connect(usedSendingAddressesAction, SIGNAL(triggered()), walletFrame, SLOT(usedSendingAddresses()));
 398         connect(usedReceivingAddressesAction, SIGNAL(triggered()), walletFrame, SLOT(usedReceivingAddresses()));
 399         connect(openAction, SIGNAL(triggered()), this, SLOT(openClicked()));
 400     }
 401 #endif // ENABLE_WALLET
 402
 403     new QShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_C), this, SLOT(showDebugWindowActivateConsole()));
 404     new QShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_D), this, SLOT(showDebugWindow()));
 405 }
 406
 407 void BitcoinGUI::createMenuBar()
 408 {
 409 #ifdef Q_OS_MAC
 410     // Create a decoupled menu bar on Mac which stays even if the window is closed
 411     appMenuBar = new QMenuBar();
 412 #else
 413     // Get the main window's menu bar on other platforms
 414     appMenuBar = menuBar();
 415 #endif
 416
 417     // Configure the menus
 418     QMenu *file = appMenuBar->addMenu(tr("&File"));
 419     if(walletFrame)
 420     {
 421         file->addAction(openAction);
 422         file->addAction(backupWalletAction);
 423         file->addAction(signMessageAction);
 424         file->addAction(verifyMessageAction);
 425         file->addSeparator();
 426         file->addAction(usedSendingAddressesAction);
 427         file->addAction(usedReceivingAddressesAction);
 428         file->addSeparator();
 429     }
 430     file->addAction(quitAction);
 431
 432     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 433     if(walletFrame)
 434     {
 435         settings->addAction(encryptWalletAction);
 436         settings->addAction(changePassphraseAction);
 437         settings->addSeparator();
 438     }
 439     settings->addAction(optionsAction);
 440
 441     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 442     if(walletFrame)
 443     {
 444         help->addAction(openRPCConsoleAction);
 445     }
 446     help->addAction(showHelpMessageAction);
 447     help->addSeparator();
 448     help->addAction(aboutAction);
 449     help->addAction(aboutQtAction);
 450 }
 451
 452 void BitcoinGUI::createToolBars()
 453 {
 454     if(walletFrame)
 455     {
 456         QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 457         toolbar->setMovable(false);
 458         toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 459         toolbar->addAction(overviewAction);
 460         toolbar->addAction(sendCoinsAction);
 461         toolbar->addAction(receiveCoinsAction);
 462         toolbar->addAction(historyAction);
 463         overviewAction->setChecked(true);
 464     }
 465 }
 466
 467 void BitcoinGUI::setClientModel(ClientModel *_clientModel)
 468 {
 469     this->clientModel = _clientModel;
 470     if(_clientModel)
 471     {
 472         // Create system tray menu (or setup the dock menu) that late to prevent users from calling actions,
 473         // while the client has not yet fully loaded
 474         createTrayIconMenu();
 475
 476         // Keep up to date with client
 477         updateNetworkState();
 478         connect(_clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 479         connect(_clientModel, SIGNAL(networkActiveChanged(bool)), this, SLOT(setNetworkActive(bool)));
 480
 481         modalOverlay->setKnownBestHeight(_clientModel->getHeaderTipHeight(), QDateTime::fromTime_t(_clientModel->getHeaderTipTime()));
 482         setNumBlocks(_clientModel->getNumBlocks(), _clientModel->getLastBlockDate(), _clientModel->getVerificationProgress(NULL), false);
 483         connect(_clientModel, SIGNAL(numBlocksChanged(int,QDateTime,double,bool)), this, SLOT(setNumBlocks(int,QDateTime,double,bool)));
 484
 485         // Receive and report messages from client model
 486         connect(_clientModel, SIGNAL(message(QString,QString,unsigned int)), this, SLOT(message(QString,QString,unsigned int)));
 487
 488         // Show progress dialog
 489         connect(_clientModel, SIGNAL(showProgress(QString,int)), this, SLOT(showProgress(QString,int)));
 490
 491         rpcConsole->setClientModel(_clientModel);
 492 #ifdef ENABLE_WALLET
 493         if(walletFrame)
 494         {
 495             walletFrame->setClientModel(_clientModel);
 496         }
 497 #endif // ENABLE_WALLET
 498         unitDisplayControl->setOptionsModel(_clientModel->getOptionsModel());
 499
 500         OptionsModel* optionsModel = _clientModel->getOptionsModel();
 501         if(optionsModel)
 502         {
 503             // be aware of the tray icon disable state change reported by the OptionsModel object.
 504             connect(optionsModel,SIGNAL(hideTrayIconChanged(bool)),this,SLOT(setTrayIconVisible(bool)));
 505
 506             // initialize the disable state of the tray icon with the current value in the model.
 507             setTrayIconVisible(optionsModel->getHideTrayIcon());
 508         }
 509     } else {
 510         // Disable possibility to show main window via action
 511         toggleHideAction->setEnabled(false);
 512         if(trayIconMenu)
 513         {
 514             // Disable context menu on tray icon
 515             trayIconMenu->clear();
 516         }
 517         // Propagate cleared model to child objects
 518         rpcConsole->setClientModel(nullptr);
 519 #ifdef ENABLE_WALLET
 520         if (walletFrame)
 521         {
 522             walletFrame->setClientModel(nullptr);
 523         }
 524 #endif // ENABLE_WALLET
 525         unitDisplayControl->setOptionsModel(nullptr);
 526     }
 527 }
 528
 529 #ifdef ENABLE_WALLET
 530 bool BitcoinGUI::addWallet(const QString& name, WalletModel *walletModel)
 531 {
 532     if(!walletFrame)
 533         return false;
 534     setWalletActionsEnabled(true);
 535     return walletFrame->addWallet(name, walletModel);
 536 }
 537
 538 bool BitcoinGUI::setCurrentWallet(const QString& name)
 539 {
 540     if(!walletFrame)
 541         return false;
 542     return walletFrame->setCurrentWallet(name);
 543 }
 544
 545 void BitcoinGUI::removeAllWallets()
 546 {
 547     if(!walletFrame)
 548         return;
 549     setWalletActionsEnabled(false);
 550     walletFrame->removeAllWallets();
 551 }
 552 #endif // ENABLE_WALLET
 553
 554 void BitcoinGUI::setWalletActionsEnabled(bool enabled)
 555 {
 556     overviewAction->setEnabled(enabled);
 557     sendCoinsAction->setEnabled(enabled);
 558     sendCoinsMenuAction->setEnabled(enabled);
 559     receiveCoinsAction->setEnabled(enabled);
 560     receiveCoinsMenuAction->setEnabled(enabled);
 561     historyAction->setEnabled(enabled);
 562     encryptWalletAction->setEnabled(enabled);
 563     backupWalletAction->setEnabled(enabled);
 564     changePassphraseAction->setEnabled(enabled);
 565     signMessageAction->setEnabled(enabled);
 566     verifyMessageAction->setEnabled(enabled);
 567     usedSendingAddressesAction->setEnabled(enabled);
 568     usedReceivingAddressesAction->setEnabled(enabled);
 569     openAction->setEnabled(enabled);
 570 }
 571
 572 void BitcoinGUI::createTrayIcon(const NetworkStyle *networkStyle)
 573 {
 574 #ifndef Q_OS_MAC
 575     trayIcon = new QSystemTrayIcon(this);
 576     QString toolTip = tr("%1 client").arg(tr(PACKAGE_NAME)) + " " + networkStyle->getTitleAddText();
 577     trayIcon->setToolTip(toolTip);
 578     trayIcon->setIcon(networkStyle->getTrayAndWindowIcon());
 579     trayIcon->hide();
 580 #endif
 581
 582     notificator = new Notificator(QApplication::applicationName(), trayIcon, this);
 583 }
 584
 585 void BitcoinGUI::createTrayIconMenu()
 586 {
 587 #ifndef Q_OS_MAC
 588     // return if trayIcon is unset (only on non-Mac OSes)
 589     if (!trayIcon)
 590         return;
 591
 592     trayIconMenu = new QMenu(this);
 593     trayIcon->setContextMenu(trayIconMenu);
 594
 595     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 596             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 597 #else
 598     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 599     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 600     dockIconHandler->setMainWindow((QMainWindow *)this);
 601     trayIconMenu = dockIconHandler->dockMenu();
 602 #endif
 603
 604     // Configuration of the tray icon (or dock icon) icon menu
 605     trayIconMenu->addAction(toggleHideAction);
 606     trayIconMenu->addSeparator();
 607     trayIconMenu->addAction(sendCoinsMenuAction);
 608     trayIconMenu->addAction(receiveCoinsMenuAction);
 609     trayIconMenu->addSeparator();
 610     trayIconMenu->addAction(signMessageAction);
 611     trayIconMenu->addAction(verifyMessageAction);
 612     trayIconMenu->addSeparator();
 613     trayIconMenu->addAction(optionsAction);
 614     trayIconMenu->addAction(openRPCConsoleAction);
 615 #ifndef Q_OS_MAC // This is built-in on Mac
 616     trayIconMenu->addSeparator();
 617     trayIconMenu->addAction(quitAction);
 618 #endif
 619 }
 620
 621 #ifndef Q_OS_MAC
 622 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 623 {
 624     if(reason == QSystemTrayIcon::Trigger)
 625     {
 626         // Click on system tray icon triggers show/hide of the main window
 627         toggleHidden();
 628     }
 629 }
 630 #endif
 631
 632 void BitcoinGUI::optionsClicked()
 633 {
 634     if(!clientModel || !clientModel->getOptionsModel())
 635         return;
 636
 637     OptionsDialog dlg(this, enableWallet);
 638     dlg.setModel(clientModel->getOptionsModel());
 639     dlg.exec();
 640 }
 641
 642 void BitcoinGUI::aboutClicked()
 643 {
 644     if(!clientModel)
 645         return;
 646
 647     HelpMessageDialog dlg(this, true);
 648     dlg.exec();
 649 }
 650
 651 void BitcoinGUI::showDebugWindow()
 652 {
 653     rpcConsole->showNormal();
 654     rpcConsole->show();
 655     rpcConsole->raise();
 656     rpcConsole->activateWindow();
 657 }
 658
 659 void BitcoinGUI::showDebugWindowActivateConsole()
 660 {
 661     rpcConsole->setTabFocus(RPCConsole::TAB_CONSOLE);
 662     showDebugWindow();
 663 }
 664
 665 void BitcoinGUI::showHelpMessageClicked()
 666 {
 667     helpMessageDialog->show();
 668 }
 669
 670 #ifdef ENABLE_WALLET
 671 void BitcoinGUI::openClicked()
 672 {
 673     OpenURIDialog dlg(this);
 674     if(dlg.exec())
 675     {
 676         Q_EMIT receivedURI(dlg.getURI());
 677     }
 678 }
 679
 680 void BitcoinGUI::gotoOverviewPage()
 681 {
 682     overviewAction->setChecked(true);
 683     if (walletFrame) walletFrame->gotoOverviewPage();
 684 }
 685
 686 void BitcoinGUI::gotoHistoryPage()
 687 {
 688     historyAction->setChecked(true);
 689     if (walletFrame) walletFrame->gotoHistoryPage();
 690 }
 691
 692 void BitcoinGUI::gotoReceiveCoinsPage()
 693 {
 694     receiveCoinsAction->setChecked(true);
 695     if (walletFrame) walletFrame->gotoReceiveCoinsPage();
 696 }
 697
 698 void BitcoinGUI::gotoSendCoinsPage(QString addr)
 699 {
 700     sendCoinsAction->setChecked(true);
 701     if (walletFrame) walletFrame->gotoSendCoinsPage(addr);
 702 }
 703
 704 void BitcoinGUI::gotoSignMessageTab(QString addr)
 705 {
 706     if (walletFrame) walletFrame->gotoSignMessageTab(addr);
 707 }
 708
 709 void BitcoinGUI::gotoVerifyMessageTab(QString addr)
 710 {
 711     if (walletFrame) walletFrame->gotoVerifyMessageTab(addr);
 712 }
 713 #endif // ENABLE_WALLET
 714
 715 void BitcoinGUI::updateNetworkState()
 716 {
 717     int count = clientModel->getNumConnections();
 718     QString icon;
 719     switch(count)
 720     {
 721     case 0: icon = ":/icons/connect_0"; break;
 722     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 723     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 724     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 725     default: icon = ":/icons/connect_4"; break;
 726     }
 727
 728     QString tooltip;
 729
 730     if (clientModel->getNetworkActive()) {
 731         tooltip = tr("%n active connection(s) to Bitcoin network", "", count) + QString(".<br>") + tr("Click to disable network activity.");
 732     } else {
 733         tooltip = tr("Network activity disabled.") + QString("<br>") + tr("Click to enable network activity again.");
 734         icon = ":/icons/network_disabled";
 735     }
 736
 737     // Don't word-wrap this (fixed-width) tooltip
 738     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 739     connectionsControl->setToolTip(tooltip);
 740
 741     connectionsControl->setPixmap(platformStyle->SingleColorIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 742 }
 743
 744 void BitcoinGUI::setNumConnections(int count)
 745 {
 746     updateNetworkState();
 747 }
 748
 749 void BitcoinGUI::setNetworkActive(bool networkActive)
 750 {
 751     updateNetworkState();
 752 }
 753
 754 void BitcoinGUI::updateHeadersSyncProgressLabel()
 755 {
 756     int64_t headersTipTime = clientModel->getHeaderTipTime();
 757     int headersTipHeight = clientModel->getHeaderTipHeight();
 758     int estHeadersLeft = (GetTime() - headersTipTime) / Params().GetConsensus().nPowTargetSpacing;
 759     if (estHeadersLeft > HEADER_HEIGHT_DELTA_SYNC)
 760         progressBarLabel->setText(tr("Syncing Headers (%1%)...").arg(QString::number(100.0 / (headersTipHeight+estHeadersLeft)*headersTipHeight, 'f', 1)));
 761 }
 762
 763 void BitcoinGUI::setNumBlocks(int count, const QDateTime& blockDate, double nVerificationProgress, bool header)
 764 {
 765     if (modalOverlay)
 766     {
 767         if (header)
 768             modalOverlay->setKnownBestHeight(count, blockDate);
 769         else
 770             modalOverlay->tipUpdate(count, blockDate, nVerificationProgress);
 771     }
 772     if (!clientModel)
 773         return;
 774
 775     // Prevent orphan statusbar messages (e.g. hover Quit in main menu, wait until chain-sync starts -> garbled text)
 776     statusBar()->clearMessage();
 777
 778     // Acquire current block source
 779     enum BlockSource blockSource = clientModel->getBlockSource();
 780     switch (blockSource) {
 781         case BLOCK_SOURCE_NETWORK:
 782             if (header) {
 783                 updateHeadersSyncProgressLabel();
 784                 return;
 785             }
 786             progressBarLabel->setText(tr("Synchronizing with network..."));
 787             updateHeadersSyncProgressLabel();
 788             break;
 789         case BLOCK_SOURCE_DISK:
 790             if (header) {
 791                 progressBarLabel->setText(tr("Indexing blocks on disk..."));
 792             } else {
 793                 progressBarLabel->setText(tr("Processing blocks on disk..."));
 794             }
 795             break;
 796         case BLOCK_SOURCE_REINDEX:
 797             progressBarLabel->setText(tr("Reindexing blocks on disk..."));
 798             break;
 799         case BLOCK_SOURCE_NONE:
 800             if (header) {
 801                 return;
 802             }
 803             progressBarLabel->setText(tr("Connecting to peers..."));
 804             break;
 805     }
 806
 807     QString tooltip;
 808
 809     QDateTime currentDate = QDateTime::currentDateTime();
 810     qint64 secs = blockDate.secsTo(currentDate);
 811
 812     tooltip = tr("Processed %n block(s) of transaction history.", "", count);
 813
 814     // Set icon state: spinning if catching up, tick otherwise
 815     if(secs < 90*60)
 816     {
 817         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
 818         labelBlocksIcon->setPixmap(platformStyle->SingleColorIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 819
 820 #ifdef ENABLE_WALLET
 821         if(walletFrame)
 822         {
 823             walletFrame->showOutOfSyncWarning(false);
 824             modalOverlay->showHide(true, true);
 825         }
 826 #endif // ENABLE_WALLET
 827
 828         progressBarLabel->setVisible(false);
 829         progressBar->setVisible(false);
 830     }
 831     else
 832     {
 833         QString timeBehindText = GUIUtil::formatNiceTimeOffset(secs);
 834
 835         progressBarLabel->setVisible(true);
 836         progressBar->setFormat(tr("%1 behind").arg(timeBehindText));
 837         progressBar->setMaximum(1000000000);
 838         progressBar->setValue(nVerificationProgress * 1000000000.0 + 0.5);
 839         progressBar->setVisible(true);
 840
 841         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
 842         if(count != prevBlocks)
 843         {
 844             labelBlocksIcon->setPixmap(platformStyle->SingleColorIcon(QString(
 845                 ":/movies/spinner-%1").arg(spinnerFrame, 3, 10, QChar('0')))
 846                 .pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 847             spinnerFrame = (spinnerFrame + 1) % SPINNER_FRAMES;
 848         }
 849         prevBlocks = count;
 850
 851 #ifdef ENABLE_WALLET
 852         if(walletFrame)
 853         {
 854             walletFrame->showOutOfSyncWarning(true);
 855             modalOverlay->showHide();
 856         }
 857 #endif // ENABLE_WALLET
 858
 859         tooltip += QString("<br>");
 860         tooltip += tr("Last received block was generated %1 ago.").arg(timeBehindText);
 861         tooltip += QString("<br>");
 862         tooltip += tr("Transactions after this will not yet be visible.");
 863     }
 864
 865     // Don't word-wrap this (fixed-width) tooltip
 866     tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
 867
 868     labelBlocksIcon->setToolTip(tooltip);
 869     progressBarLabel->setToolTip(tooltip);
 870     progressBar->setToolTip(tooltip);
 871 }
 872
 873 void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, bool *ret)
 874 {
 875     QString strTitle = tr("Bitcoin"); // default title
 876     // Default to information icon
 877     int nMBoxIcon = QMessageBox::Information;
 878     int nNotifyIcon = Notificator::Information;
 879
 880     QString msgType;
 881
 882     // Prefer supplied title over style based title
 883     if (!title.isEmpty()) {
 884         msgType = title;
 885     }
 886     else {
 887         switch (style) {
 888         case CClientUIInterface::MSG_ERROR:
 889             msgType = tr("Error");
 890             break;
 891         case CClientUIInterface::MSG_WARNING:
 892             msgType = tr("Warning");
 893             break;
 894         case CClientUIInterface::MSG_INFORMATION:
 895             msgType = tr("Information");
 896             break;
 897         default:
 898             break;
 899         }
 900     }
 901     // Append title to "Bitcoin - "
 902     if (!msgType.isEmpty())
 903         strTitle += " - " + msgType;
 904
 905     // Check for error/warning icon
 906     if (style & CClientUIInterface::ICON_ERROR) {
 907         nMBoxIcon = QMessageBox::Critical;
 908         nNotifyIcon = Notificator::Critical;
 909     }
 910     else if (style & CClientUIInterface::ICON_WARNING) {
 911         nMBoxIcon = QMessageBox::Warning;
 912         nNotifyIcon = Notificator::Warning;
 913     }
 914
 915     // Display message
 916     if (style & CClientUIInterface::MODAL) {
 917         // Check for buttons, use OK as default, if none was supplied
 918         QMessageBox::StandardButton buttons;
 919         if (!(buttons = (QMessageBox::StandardButton)(style & CClientUIInterface::BTN_MASK)))
 920             buttons = QMessageBox::Ok;
 921
 922         showNormalIfMinimized();
 923         QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons, this);
 924         int r = mBox.exec();
 925         if (ret != NULL)
 926             *ret = r == QMessageBox::Ok;
 927     }
 928     else
 929         notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
 930 }
 931
 932 void BitcoinGUI::changeEvent(QEvent *e)
 933 {
 934     QMainWindow::changeEvent(e);
 935 #ifndef Q_OS_MAC // Ignored on Mac
 936     if(e->type() == QEvent::WindowStateChange)
 937     {
 938         if(clientModel && clientModel->getOptionsModel() && clientModel->getOptionsModel()->getMinimizeToTray())
 939         {
 940             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 941             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 942             {
 943                 QTimer::singleShot(0, this, SLOT(hide()));
 944                 e->ignore();
 945             }
 946         }
 947     }
 948 #endif
 949 }
 950
 951 void BitcoinGUI::closeEvent(QCloseEvent *event)
 952 {
 953 #ifndef Q_OS_MAC // Ignored on Mac
 954     if(clientModel && clientModel->getOptionsModel())
 955     {
 956         if(!clientModel->getOptionsModel()->getMinimizeOnClose())
 957         {
 958             // close rpcConsole in case it was open to make some space for the shutdown window
 959             rpcConsole->close();
 960
 961             QApplication::quit();
 962         }
 963         else
 964         {
 965             QMainWindow::showMinimized();
 966             event->ignore();
 967         }
 968     }
 969 #else
 970     QMainWindow::closeEvent(event);
 971 #endif
 972 }
 973
 974 void BitcoinGUI::showEvent(QShowEvent *event)
 975 {
 976     // enable the debug window when the main window shows up
 977     openRPCConsoleAction->setEnabled(true);
 978     aboutAction->setEnabled(true);
 979     optionsAction->setEnabled(true);
 980 }
 981
 982 #ifdef ENABLE_WALLET
 983 void BitcoinGUI::incomingTransaction(const QString& date, int unit, const CAmount& amount, const QString& type, const QString& address, const QString& label)
 984 {
 985     // On new transaction, make an info balloon
 986     QString msg = tr("Date: %1\n").arg(date) +
 987                   tr("Amount: %1\n").arg(BitcoinUnits::formatWithUnit(unit, amount, true)) +
 988                   tr("Type: %1\n").arg(type);
 989     if (!label.isEmpty())
 990         msg += tr("Label: %1\n").arg(label);
 991     else if (!address.isEmpty())
 992         msg += tr("Address: %1\n").arg(address);
 993     message((amount)<0 ? tr("Sent transaction") : tr("Incoming transaction"),
 994              msg, CClientUIInterface::MSG_INFORMATION);
 995 }
 996 #endif // ENABLE_WALLET
 997
 998 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 999 {
1000     // Accept only URIs
1001     if(event->mimeData()->hasUrls())
1002         event->acceptProposedAction();
1003 }
1004
1005 void BitcoinGUI::dropEvent(QDropEvent *event)
1006 {
1007     if(event->mimeData()->hasUrls())
1008     {
1009         for (const QUrl &uri : event->mimeData()->urls())
1010         {
1011             Q_EMIT receivedURI(uri.toString());
1012         }
1013     }
1014     event->acceptProposedAction();
1015 }
1016
1017 bool BitcoinGUI::eventFilter(QObject *object, QEvent *event)
1018 {
1019     // Catch status tip events
1020     if (event->type() == QEvent::StatusTip)
1021     {
1022         // Prevent adding text from setStatusTip(), if we currently use the status bar for displaying other stuff
1023         if (progressBarLabel->isVisible() || progressBar->isVisible())
1024             return true;
1025     }
1026     return QMainWindow::eventFilter(object, event);
1027 }
1028
1029 #ifdef ENABLE_WALLET
1030 bool BitcoinGUI::handlePaymentRequest(const SendCoinsRecipient& recipient)
1031 {
1032     // URI has to be valid
1033     if (walletFrame && walletFrame->handlePaymentRequest(recipient))
1034     {
1035         showNormalIfMinimized();
1036         gotoSendCoinsPage();
1037         return true;
1038     }
1039     return false;
1040 }
1041
1042 void BitcoinGUI::setHDStatus(int hdEnabled)
1043 {
1044     labelWalletHDStatusIcon->setPixmap(platformStyle->SingleColorIcon(hdEnabled ? ":/icons/hd_enabled" : ":/icons/hd_disabled").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1045     labelWalletHDStatusIcon->setToolTip(hdEnabled ? tr("HD key generation is <b>enabled</b>") : tr("HD key generation is <b>disabled</b>"));
1046
1047     // eventually disable the QLabel to set its opacity to 50%
1048     labelWalletHDStatusIcon->setEnabled(hdEnabled);
1049 }
1050
1051 void BitcoinGUI::setEncryptionStatus(int status)
1052 {
1053     switch(status)
1054     {
1055     case WalletModel::Unencrypted:
1056         labelWalletEncryptionIcon->hide();
1057         encryptWalletAction->setChecked(false);
1058         changePassphraseAction->setEnabled(false);
1059         encryptWalletAction->setEnabled(true);
1060         break;
1061     case WalletModel::Unlocked:
1062         labelWalletEncryptionIcon->show();
1063         labelWalletEncryptionIcon->setPixmap(platformStyle->SingleColorIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1064         labelWalletEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
1065         encryptWalletAction->setChecked(true);
1066         changePassphraseAction->setEnabled(true);
1067         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1068         break;
1069     case WalletModel::Locked:
1070         labelWalletEncryptionIcon->show();
1071         labelWalletEncryptionIcon->setPixmap(platformStyle->SingleColorIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
1072         labelWalletEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
1073         encryptWalletAction->setChecked(true);
1074         changePassphraseAction->setEnabled(true);
1075         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
1076         break;
1077     }
1078 }
1079 #endif // ENABLE_WALLET
1080
1081 void BitcoinGUI::showNormalIfMinimized(bool fToggleHidden)
1082 {
1083     if(!clientModel)
1084         return;
1085
1086     // activateWindow() (sometimes) helps with keyboard focus on Windows
1087     if (isHidden())
1088     {
1089         show();
1090         activateWindow();
1091     }
1092     else if (isMinimized())
1093     {
1094         showNormal();
1095         activateWindow();
1096     }
1097     else if (GUIUtil::isObscured(this))
1098     {
1099         raise();
1100         activateWindow();
1101     }
1102     else if(fToggleHidden)
1103         hide();
1104 }
1105
1106 void BitcoinGUI::toggleHidden()
1107 {
1108     showNormalIfMinimized(true);
1109 }
1110
1111 void BitcoinGUI::detectShutdown()
1112 {
1113     if (ShutdownRequested())
1114     {
1115         if(rpcConsole)
1116             rpcConsole->hide();
1117         qApp->quit();
1118     }
1119 }
1120
1121 void BitcoinGUI::showProgress(const QString &title, int nProgress)
1122 {
1123     if (nProgress == 0)
1124     {
1125         progressDialog = new QProgressDialog(title, "", 0, 100);
1126         progressDialog->setWindowModality(Qt::ApplicationModal);
1127         progressDialog->setMinimumDuration(0);
1128         progressDialog->setCancelButton(0);
1129         progressDialog->setAutoClose(false);
1130         progressDialog->setValue(0);
1131     }
1132     else if (nProgress == 100)
1133     {
1134         if (progressDialog)
1135         {
1136             progressDialog->close();
1137             progressDialog->deleteLater();
1138         }
1139     }
1140     else if (progressDialog)
1141         progressDialog->setValue(nProgress);
1142 }
1143
1144 void BitcoinGUI::setTrayIconVisible(bool fHideTrayIcon)
1145 {
1146     if (trayIcon)
1147     {
1148         trayIcon->setVisible(!fHideTrayIcon);
1149     }
1150 }
1151
1152 void BitcoinGUI::showModalOverlay()
1153 {
1154     if (modalOverlay && (progressBar->isVisible() || modalOverlay->isLayerVisible()))
1155         modalOverlay->toggleVisibility();
1156 }
1157
1158 static bool ThreadSafeMessageBox(BitcoinGUI *gui, const std::string& message, const std::string& caption, unsigned int style)
1159 {
1160     bool modal = (style & CClientUIInterface::MODAL);
1161     // The SECURE flag has no effect in the Qt GUI.
1162     // bool secure = (style & CClientUIInterface::SECURE);
1163     style &= ~CClientUIInterface::SECURE;
1164     bool ret = false;
1165     // In case of modal message, use blocking connection to wait for user to click a button
1166     QMetaObject::invokeMethod(gui, "message",
1167                                modal ? GUIUtil::blockingGUIThreadConnection() : Qt::QueuedConnection,
1168                                Q_ARG(QString, QString::fromStdString(caption)),
1169                                Q_ARG(QString, QString::fromStdString(message)),
1170                                Q_ARG(unsigned int, style),
1171                                Q_ARG(bool*, &ret));
1172     return ret;
1173 }
1174
1175 void BitcoinGUI::subscribeToCoreSignals()
1176 {
1177     // Connect signals to client
1178     uiInterface.ThreadSafeMessageBox.connect(boost::bind(ThreadSafeMessageBox, this, _1, _2, _3));
1179     uiInterface.ThreadSafeQuestion.connect(boost::bind(ThreadSafeMessageBox, this, _1, _3, _4));
1180 }
1181
1182 void BitcoinGUI::unsubscribeFromCoreSignals()
1183 {
1184     // Disconnect signals from client
1185     uiInterface.ThreadSafeMessageBox.disconnect(boost::bind(ThreadSafeMessageBox, this, _1, _2, _3));
1186     uiInterface.ThreadSafeQuestion.disconnect(boost::bind(ThreadSafeMessageBox, this, _1, _3, _4));
1187 }
1188
1189 void BitcoinGUI::toggleNetworkActive()
1190 {
1191     if (clientModel) {
1192         clientModel->setNetworkActive(!clientModel->getNetworkActive());
1193     }
1194 }
1195
1196 UnitDisplayStatusBarControl::UnitDisplayStatusBarControl(const PlatformStyle *platformStyle) :
1197     optionsModel(0),
1198     menu(0)
1199 {
1200     createContextMenu();
1201     setToolTip(tr("Unit to show amounts in. Click to select another unit."));
1202     QList<BitcoinUnits::Unit> units = BitcoinUnits::availableUnits();
1203     int max_width = 0;
1204     const QFontMetrics fm(font());
1205     for (const BitcoinUnits::Unit unit : units)
1206     {
1207         max_width = qMax(max_width, fm.width(BitcoinUnits::name(unit)));
1208     }
1209     setMinimumSize(max_width, 0);
1210     setAlignment(Qt::AlignRight | Qt::AlignVCenter);
1211     setStyleSheet(QString("QLabel { color : %1 }").arg(platformStyle->SingleColor().name()));
1212 }
1213
1214 /** So that it responds to button clicks */
1215 void UnitDisplayStatusBarControl::mousePressEvent(QMouseEvent *event)
1216 {
1217     onDisplayUnitsClicked(event->pos());
1218 }
1219
1220 /** Creates context menu, its actions, and wires up all the relevant signals for mouse events. */
1221 void UnitDisplayStatusBarControl::createContextMenu()
1222 {
1223     menu = new QMenu(this);
1224     for (BitcoinUnits::Unit u : BitcoinUnits::availableUnits())
1225     {
1226         QAction *menuAction = new QAction(QString(BitcoinUnits::name(u)), this);
1227         menuAction->setData(QVariant(u));
1228         menu->addAction(menuAction);
1229     }
1230     connect(menu,SIGNAL(triggered(QAction*)),this,SLOT(onMenuSelection(QAction*)));
1231 }
1232
1233 /** Lets the control know about the Options Model (and its signals) */
1234 void UnitDisplayStatusBarControl::setOptionsModel(OptionsModel *_optionsModel)
1235 {
1236     if (_optionsModel)
1237     {
1238         this->optionsModel = _optionsModel;
1239
1240         // be aware of a display unit change reported by the OptionsModel object.
1241         connect(_optionsModel,SIGNAL(displayUnitChanged(int)),this,SLOT(updateDisplayUnit(int)));
1242
1243         // initialize the display units label with the current value in the model.
1244         updateDisplayUnit(_optionsModel->getDisplayUnit());
1245     }
1246 }
1247
1248 /** When Display Units are changed on OptionsModel it will refresh the display text of the control on the status bar */
1249 void UnitDisplayStatusBarControl::updateDisplayUnit(int newUnits)
1250 {
1251     setText(BitcoinUnits::name(newUnits));
1252 }
1253
1254 /** Shows context menu with Display Unit options by the mouse coordinates */
1255 void UnitDisplayStatusBarControl::onDisplayUnitsClicked(const QPoint& point)
1256 {
1257     QPoint globalPos = mapToGlobal(point);
1258     menu->exec(globalPos);
1259 }
1260
1261 /** Tells underlying optionsModel to update its current display unit. */
1262 void UnitDisplayStatusBarControl::onMenuSelection(QAction* action)
1263 {
1264     if (action)
1265     {
1266         optionsModel->setDisplayUnit(action->data());
1267     }
1268 }