aboutsummaryrefslogtreecommitdiff
path: root/src/qt/bitcoingui.cpp
blob: cf252e84c523d51cd3d4c89378b9a9dd3b285b1b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
/*
 * Qt4 bitcoin GUI.
 *
 * W.J. van der Laan 20011-2012
 * The Bitcoin Developers 20011-2012
 */
#include "bitcoingui.h"
#include "transactiontablemodel.h"
#include "addressbookpage.h"
#include "sendcoinsdialog.h"
#include "messagepage.h"
#include "optionsdialog.h"
#include "aboutdialog.h"
#include "clientmodel.h"
#include "walletmodel.h"
#include "editaddressdialog.h"
#include "optionsmodel.h"
#include "transactiondescdialog.h"
#include "addresstablemodel.h"
#include "transactionview.h"
#include "overviewpage.h"
#include "bitcoinunits.h"
#include "guiconstants.h"
#include "askpassphrasedialog.h"
#include "notificator.h"

#ifdef Q_WS_MAC
#include "macdockiconhandler.h"
#endif

#include <QApplication>
#include <QMainWindow>
#include <QMenuBar>
#include <QMenu>
#include <QIcon>
#include <QTabWidget>
#include <QVBoxLayout>
#include <QToolBar>
#include <QStatusBar>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QLocale>
#include <QMessageBox>
#include <QProgressBar>
#include <QStackedWidget>
#include <QDateTime>
#include <QMovie>
#include <QFileDialog>
#include <QDesktopServices>
#include <QTimer>

#include <QDragEnterEvent>
#include <QUrl>

#include <iostream>

BitcoinGUI::BitcoinGUI(QWidget *parent):
    QMainWindow(parent),
    clientModel(0),
    walletModel(0),
    encryptWalletAction(0),
    changePassphraseAction(0),
    aboutQtAction(0),
    trayIcon(0),
    notificator(0)
{
    resize(850, 550);
    setWindowTitle(tr("Bitcoin Wallet"));
#ifndef Q_WS_MAC
    setWindowIcon(QIcon(":icons/bitcoin"));
#else
    setUnifiedTitleAndToolBarOnMac(true);
    QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
#endif
    // Accept D&D of URIs
    setAcceptDrops(true);

    // Create actions for the toolbar, menu bar and tray/dock icon
    createActions();

    // Create application menu bar
    createMenuBar();

    // Create the toolbars
    createToolBars();

    // Create the tray icon (or setup the dock icon)
    createTrayIcon();

    // Create tabs
    overviewPage = new OverviewPage();

    transactionsPage = new QWidget(this);
    QVBoxLayout *vbox = new QVBoxLayout();
    transactionView = new TransactionView(this);
    vbox->addWidget(transactionView);
    transactionsPage->setLayout(vbox);

    addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);

    receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);

    sendCoinsPage = new SendCoinsDialog(this);

    messagePage = new MessagePage(this);

    centralWidget = new QStackedWidget(this);
    centralWidget->addWidget(overviewPage);
    centralWidget->addWidget(transactionsPage);
    centralWidget->addWidget(addressBookPage);
    centralWidget->addWidget(receiveCoinsPage);
    centralWidget->addWidget(sendCoinsPage);
#ifdef FIRST_CLASS_MESSAGING
    centralWidget->addWidget(messagePage);
#endif
    setCentralWidget(centralWidget);

    // Create status bar
    statusBar();

    // Status bar notification icons
    QFrame *frameBlocks = new QFrame();
    frameBlocks->setContentsMargins(0,0,0,0);
    frameBlocks->setMinimumWidth(56);
    frameBlocks->setMaximumWidth(56);
    QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
    frameBlocksLayout->setContentsMargins(3,0,3,0);
    frameBlocksLayout->setSpacing(3);
    labelEncryptionIcon = new QLabel();
    labelConnectionsIcon = new QLabel();
    labelBlocksIcon = new QLabel();
    frameBlocksLayout->addStretch();
    frameBlocksLayout->addWidget(labelEncryptionIcon);
    frameBlocksLayout->addStretch();
    frameBlocksLayout->addWidget(labelConnectionsIcon);
    frameBlocksLayout->addStretch();
    frameBlocksLayout->addWidget(labelBlocksIcon);
    frameBlocksLayout->addStretch();

    // Progress bar for blocks download
    progressBarLabel = new QLabel(tr("Synchronizing with network..."));
    progressBarLabel->setVisible(false);
    progressBar = new QProgressBar();
    progressBar->setToolTip(tr("Block chain synchronization in progress"));
    progressBar->setVisible(false);

    statusBar()->addWidget(progressBarLabel);
    statusBar()->addWidget(progressBar);
    statusBar()->addPermanentWidget(frameBlocks);

    syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);

    // Clicking on a transaction on the overview page simply sends you to transaction history page
    connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));

    // Doubleclicking on a transaction on the transaction history page shows details
    connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));

    gotoOverviewPage();
}

BitcoinGUI::~BitcoinGUI()
{
    if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
        trayIcon->hide();
#ifdef Q_WS_MAC
    delete appMenuBar;
#endif
}

void BitcoinGUI::createActions()
{
    QActionGroup *tabGroup = new QActionGroup(this);

    overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
    overviewAction->setToolTip(tr("Show general overview of wallet"));
    overviewAction->setCheckable(true);
    overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
    tabGroup->addAction(overviewAction);

    historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
    historyAction->setToolTip(tr("Browse transaction history"));
    historyAction->setCheckable(true);
    historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
    tabGroup->addAction(historyAction);

    addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
    addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
    addressBookAction->setCheckable(true);
    addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
    tabGroup->addAction(addressBookAction);

    receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
    receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
    receiveCoinsAction->setCheckable(true);
    receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
    tabGroup->addAction(receiveCoinsAction);

    sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
    sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
    sendCoinsAction->setCheckable(true);
    sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
    tabGroup->addAction(sendCoinsAction);

    messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
    messageAction->setToolTip(tr("Prove you control an address"));
#ifdef FIRST_CLASS_MESSAGING
    messageAction->setCheckable(true);
#endif
    tabGroup->addAction(messageAction);

    connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
    connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
    connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
    connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
    connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
    connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
    connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
    connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
    connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
    connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
    connect(messageAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
    connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));

    quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
    quitAction->setToolTip(tr("Quit application"));
    quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
    quitAction->setMenuRole(QAction::QuitRole);
    aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
    aboutAction->setToolTip(tr("Show information about Bitcoin"));
    aboutAction->setMenuRole(QAction::AboutRole);
    aboutQtAction = new QAction(tr("About &Qt"), this);
    aboutQtAction->setToolTip(tr("Show information about Qt"));
    aboutQtAction->setMenuRole(QAction::AboutQtRole);
    optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
    optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
    optionsAction->setMenuRole(QAction::PreferencesRole);
    openBitcoinAction = new QAction(QIcon(":/icons/bitcoin"), tr("Open &Bitcoin"), this);
    openBitcoinAction->setToolTip(tr("Show the Bitcoin window"));
    exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
    exportAction->setToolTip(tr("Export the data in the current tab to a file"));
    encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
    encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
    encryptWalletAction->setCheckable(true);
    backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet"), this);
    backupWalletAction->setToolTip(tr("Backup wallet to another location"));
    changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
    changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));

    connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
    connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
    connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
    connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
    connect(openBitcoinAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
    connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
    connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
    connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
}

void BitcoinGUI::createMenuBar()
{
#ifdef Q_WS_MAC
    // Create a decoupled menu bar on Mac which stays even if the window is closed
    appMenuBar = new QMenuBar();
#else
    // Get the main window's menu bar on other platforms
    appMenuBar = menuBar();
#endif

    // Configure the menus
    QMenu *file = appMenuBar->addMenu(tr("&File"));
    file->addAction(backupWalletAction);
    file->addAction(exportAction);
#ifndef FIRST_CLASS_MESSAGING
    file->addAction(messageAction);
#endif
    file->addSeparator();
    file->addAction(quitAction);

    QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
    settings->addAction(encryptWalletAction);
    settings->addAction(changePassphraseAction);
    settings->addSeparator();
    settings->addAction(optionsAction);

    QMenu *help = appMenuBar->addMenu(tr("&Help"));
    help->addAction(aboutAction);
    help->addAction(aboutQtAction);
}

void BitcoinGUI::createToolBars()
{
    QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
    toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
    toolbar->addAction(overviewAction);
    toolbar->addAction(sendCoinsAction);
    toolbar->addAction(receiveCoinsAction);
    toolbar->addAction(historyAction);
    toolbar->addAction(addressBookAction);
#ifdef FIRST_CLASS_MESSAGING
    toolbar->addAction(messageAction);
#endif

    QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
    toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
    toolbar2->addAction(exportAction);
}

void BitcoinGUI::setClientModel(ClientModel *clientModel)
{
    this->clientModel = clientModel;
    if(clientModel)
    {
        if(clientModel->isTestNet())
        {
            QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
            setWindowTitle(title_testnet);
#ifndef Q_WS_MAC
            setWindowIcon(QIcon(":icons/bitcoin_testnet"));
#else
            MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
#endif
            if(trayIcon)
            {
                trayIcon->setToolTip(title_testnet);
                trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
            }
        }

        // Keep up to date with client
        setNumConnections(clientModel->getNumConnections());
        connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));

        setNumBlocks(clientModel->getNumBlocks());
        connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));

        // Report errors from network/worker thread
        connect(clientModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));
    }
}

void BitcoinGUI::setWalletModel(WalletModel *walletModel)
{
    this->walletModel = walletModel;
    if(walletModel)
    {
        // Report errors from wallet thread
        connect(walletModel, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));

        // Put transaction list in tabs
        transactionView->setModel(walletModel);

        overviewPage->setModel(walletModel);
        addressBookPage->setModel(walletModel->getAddressTableModel());
        receiveCoinsPage->setModel(walletModel->getAddressTableModel());
        sendCoinsPage->setModel(walletModel);
        messagePage->setModel(walletModel);

        setEncryptionStatus(walletModel->getEncryptionStatus());
        connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));

        // Balloon popup for new transaction
        connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
                this, SLOT(incomingTransaction(QModelIndex,int,int)));

        // Ask for passphrase if needed
        connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
    }
}

void BitcoinGUI::createTrayIcon()
{
    QMenu *trayIconMenu;
#ifndef Q_WS_MAC
    trayIcon = new QSystemTrayIcon(this);
    trayIconMenu = new QMenu(this);
    trayIcon->setContextMenu(trayIconMenu);
    trayIcon->setToolTip("Bitcoin client");
    trayIcon->setIcon(QIcon(":/icons/toolbar"));
    connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
            this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
    trayIcon->show();
#else
    // Note: On Mac, the dock icon is used to provide the tray's functionality.
    MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
    connect(dockIconHandler, SIGNAL(dockIconClicked()), openBitcoinAction, SLOT(trigger()));
    trayIconMenu = dockIconHandler->dockMenu();
#endif

    // Configuration of the tray icon (or dock icon) icon menu
    trayIconMenu->addAction(openBitcoinAction);
    trayIconMenu->addSeparator();
    trayIconMenu->addAction(messageAction);
#ifndef FIRST_CLASS_MESSAGING
    trayIconMenu->addSeparator();
#endif
    trayIconMenu->addAction(receiveCoinsAction);
    trayIconMenu->addAction(sendCoinsAction);
    trayIconMenu->addSeparator();
    trayIconMenu->addAction(optionsAction);
#ifndef Q_WS_MAC // This is built-in on Mac
    trayIconMenu->addSeparator();
    trayIconMenu->addAction(quitAction);
#endif

    notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
}

#ifndef Q_WS_MAC
void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
{
    if(reason == QSystemTrayIcon::Trigger)
    {
        // Click on system tray icon triggers "open bitcoin"
        openBitcoinAction->trigger();
    }
}
#endif

void BitcoinGUI::optionsClicked()
{
    if(!clientModel || !clientModel->getOptionsModel())
        return;
    OptionsDialog dlg;
    dlg.setModel(clientModel->getOptionsModel());
    dlg.exec();
}

void BitcoinGUI::aboutClicked()
{
    AboutDialog dlg;
    dlg.setModel(clientModel);
    dlg.exec();
}

void BitcoinGUI::setNumConnections(int count)
{
    QString icon;
    switch(count)
    {
    case 0: icon = ":/icons/connect_0"; break;
    case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
    case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
    case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
    default: icon = ":/icons/connect_4"; break;
    }
    labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
    labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
}

void BitcoinGUI::setNumBlocks(int count)
{
    if(!clientModel)
        return;
    int total = clientModel->getNumBlocksOfPeers();
    QString tooltip;

    if(count < total)
    {
        if (clientModel->getStatusBarWarnings() == "")
        {
            progressBarLabel->setVisible(true);
            progressBarLabel->setText(tr("Synchronizing with network..."));
            progressBar->setVisible(true);
            progressBar->setMaximum(total);
            progressBar->setValue(count);
        }
        else
        {
            progressBarLabel->setText(clientModel->getStatusBarWarnings());
            progressBarLabel->setVisible(true);
            progressBar->setVisible(false);
        }
        tooltip = tr("Downloaded %1 of %2 blocks of transaction history.").arg(count).arg(total);
    }
    else
    {
        if (clientModel->getStatusBarWarnings() == "")
            progressBarLabel->setVisible(false);
        else
        {
            progressBarLabel->setText(clientModel->getStatusBarWarnings());
            progressBarLabel->setVisible(true);
        }
        progressBar->setVisible(false);
        tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
    }

    QDateTime now = QDateTime::currentDateTime();
    QDateTime lastBlockDate = clientModel->getLastBlockDate();
    int secs = lastBlockDate.secsTo(now);
    QString text;

    // Represent time from last generated block in human readable text
    if(secs <= 0)
    {
        // Fully up to date. Leave text empty.
    }
    else if(secs < 60)
    {
        text = tr("%n second(s) ago","",secs);
    }
    else if(secs < 60*60)
    {
        text = tr("%n minute(s) ago","",secs/60);
    }
    else if(secs < 24*60*60)
    {
        text = tr("%n hour(s) ago","",secs/(60*60));
    }
    else
    {
        text = tr("%n day(s) ago","",secs/(60*60*24));
    }

    // Set icon state: spinning if catching up, tick otherwise
    if(secs < 90*60)
    {
        tooltip = tr("Up to date") + QString(".\n") + tooltip;
        labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
    }
    else
    {
        tooltip = tr("Catching up...") + QString("\n") + tooltip;
        labelBlocksIcon->setMovie(syncIconMovie);
        syncIconMovie->start();
    }

    if(!text.isEmpty())
    {
        tooltip += QString("\n");
        tooltip += tr("Last received block was generated %1.").arg(text);
    }

    labelBlocksIcon->setToolTip(tooltip);
    progressBarLabel->setToolTip(tooltip);
    progressBar->setToolTip(tooltip);
}

void BitcoinGUI::refreshStatusBar()
{
    /* Might display multiple times in the case of multiple alerts
    static QString prevStatusBar;
    QString newStatusBar = clientModel->getStatusBarWarnings();
    if (prevStatusBar != newStatusBar)
    {
        prevStatusBar = newStatusBar;
        error(tr("Network Alert"), newStatusBar);
    }*/
    setNumBlocks(clientModel->getNumBlocks());
}

void BitcoinGUI::error(const QString &title, const QString &message)
{
    // Report errors from network/worker thread
    notificator->notify(Notificator::Critical, title, message);
}

void BitcoinGUI::changeEvent(QEvent *e)
{
    QMainWindow::changeEvent(e);
#ifndef Q_WS_MAC // Ignored on Mac
    if(e->type() == QEvent::WindowStateChange)
    {
        if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
        {
            QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
            if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
            {
                QTimer::singleShot(0, this, SLOT(hide()));
                e->ignore();
            }
        }
    }
#endif
}

void BitcoinGUI::closeEvent(QCloseEvent *event)
{
    if(clientModel)
    {
#ifndef Q_WS_MAC // Ignored on Mac
        if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
           !clientModel->getOptionsModel()->getMinimizeOnClose())
        {
            qApp->quit();
        }
#endif
    }
    QMainWindow::closeEvent(event);
}

void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
{
    QString strMessage =
        tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
          "which goes to the nodes that process your transaction and helps to support the network.  "
          "Do you want to pay the fee?").arg(
                BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
    QMessageBox::StandardButton retval = QMessageBox::question(
          this, tr("Sending..."), strMessage,
          QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
    *payFee = (retval == QMessageBox::Yes);
}

void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
{
    if(!walletModel || !clientModel)
        return;
    TransactionTableModel *ttm = walletModel->getTransactionTableModel();
    qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
                    .data(Qt::EditRole).toULongLong();
    if(!clientModel->inInitialBlockDownload())
    {
        // On new transaction, make an info balloon
        // Unless the initial block download is in progress, to prevent balloon-spam
        QString date = ttm->index(start, TransactionTableModel::Date, parent)
                        .data().toString();
        QString type = ttm->index(start, TransactionTableModel::Type, parent)
                        .data().toString();
        QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
                        .data().toString();
        QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
                            TransactionTableModel::ToAddress, parent)
                        .data(Qt::DecorationRole));

        notificator->notify(Notificator::Information,
                            (amount)<0 ? tr("Sent transaction") :
                                         tr("Incoming transaction"),
                              tr("Date: %1\n"
                                 "Amount: %2\n"
                                 "Type: %3\n"
                                 "Address: %4\n")
                              .arg(date)
                              .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
                              .arg(type)
                              .arg(address), icon);
    }
}

void BitcoinGUI::gotoOverviewPage()
{
    overviewAction->setChecked(true);
    centralWidget->setCurrentWidget(overviewPage);

    exportAction->setEnabled(false);
    disconnect(exportAction, SIGNAL(triggered()), 0, 0);
}

void BitcoinGUI::gotoHistoryPage()
{
    historyAction->setChecked(true);
    centralWidget->setCurrentWidget(transactionsPage);

    exportAction->setEnabled(true);
    disconnect(exportAction, SIGNAL(triggered()), 0, 0);
    connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
}

void BitcoinGUI::gotoAddressBookPage()
{
    addressBookAction->setChecked(true);
    centralWidget->setCurrentWidget(addressBookPage);

    exportAction->setEnabled(true);
    disconnect(exportAction, SIGNAL(triggered()), 0, 0);
    connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
}

void BitcoinGUI::gotoReceiveCoinsPage()
{
    receiveCoinsAction->setChecked(true);
    centralWidget->setCurrentWidget(receiveCoinsPage);

    exportAction->setEnabled(true);
    disconnect(exportAction, SIGNAL(triggered()), 0, 0);
    connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
}

void BitcoinGUI::gotoSendCoinsPage()
{
    sendCoinsAction->setChecked(true);
    centralWidget->setCurrentWidget(sendCoinsPage);

    exportAction->setEnabled(false);
    disconnect(exportAction, SIGNAL(triggered()), 0, 0);
}

void BitcoinGUI::gotoMessagePage()
{
#ifdef FIRST_CLASS_MESSAGING
    messageAction->setChecked(true);
    centralWidget->setCurrentWidget(messagePage);

    exportAction->setEnabled(false);
    disconnect(exportAction, SIGNAL(triggered()), 0, 0);
#else
    messagePage->show();
    messagePage->setFocus();
#endif
}

void BitcoinGUI::gotoMessagePage(QString addr)
{
    gotoMessagePage();
    messagePage->setAddress(addr);
}

void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
{
    // Accept only URLs
    if(event->mimeData()->hasUrls())
        event->acceptProposedAction();
}

void BitcoinGUI::dropEvent(QDropEvent *event)
{
    if(event->mimeData()->hasUrls())
    {
        gotoSendCoinsPage();
        QList<QUrl> urls = event->mimeData()->urls();
        foreach(const QUrl &url, urls)
        {
            sendCoinsPage->handleURL(url.toString());
        }
    }

    event->acceptProposedAction();
}

void BitcoinGUI::handleURL(QString strURL)
{
    gotoSendCoinsPage();
    sendCoinsPage->handleURL(strURL);

    if(!isActiveWindow())
        activateWindow();

    showNormalIfMinimized();
}

void BitcoinGUI::setEncryptionStatus(int status)
{
    switch(status)
    {
    case WalletModel::Unencrypted:
        labelEncryptionIcon->hide();
        encryptWalletAction->setChecked(false);
        changePassphraseAction->setEnabled(false);
        encryptWalletAction->setEnabled(true);
        break;
    case WalletModel::Unlocked:
        labelEncryptionIcon->show();
        labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
        labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
        encryptWalletAction->setChecked(true);
        changePassphraseAction->setEnabled(true);
        encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
        break;
    case WalletModel::Locked:
        labelEncryptionIcon->show();
        labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
        labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
        encryptWalletAction->setChecked(true);
        changePassphraseAction->setEnabled(true);
        encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
        break;
    }
}

void BitcoinGUI::encryptWallet(bool status)
{
    if(!walletModel)
        return;
    AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
                                     AskPassphraseDialog::Decrypt, this);
    dlg.setModel(walletModel);
    dlg.exec();

    setEncryptionStatus(walletModel->getEncryptionStatus());
}

void BitcoinGUI::backupWallet()
{
    QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
    QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
    if(!filename.isEmpty()) {
        if(!walletModel->backupWallet(filename)) {
            QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
        }
    }
}

void BitcoinGUI::changePassphrase()
{
    AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
    dlg.setModel(walletModel);
    dlg.exec();
}

void BitcoinGUI::unlockWallet()
{
    if(!walletModel)
        return;
    // Unlock wallet when requested by wallet model
    if(walletModel->getEncryptionStatus() == WalletModel::Locked)
    {
        AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
        dlg.setModel(walletModel);
        dlg.exec();
    }
}

void BitcoinGUI::showNormalIfMinimized()
{
    if(!isVisible()) // Show, if hidden
        show();
    if(isMinimized()) // Unminimize, if minimized
        showNormal();
}