aboutsummaryrefslogtreecommitdiff
path: root/src/qt/transactiontablemodel.cpp
blob: 28d22b8530cb3bda16f06fa395485f6bc35e2b2d (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
#include "transactiontablemodel.h"
#include "guiutil.h"
#include "transactionrecord.h"
#include "guiconstants.h"
#include "transactiondesc.h"

#include "headers.h"

#include <QLocale>
#include <QDebug>
#include <QList>
#include <QColor>
#include <QTimer>
#include <QIcon>
#include <QDateTime>
#include <QtAlgorithms>

const QString TransactionTableModel::Sent = "s";
const QString TransactionTableModel::Received = "r";
const QString TransactionTableModel::Other = "o";

// Credit and Debit columns are right-aligned as they contain numbers
static int column_alignments[] = {
        Qt::AlignLeft|Qt::AlignVCenter,
        Qt::AlignLeft|Qt::AlignVCenter,
        Qt::AlignLeft|Qt::AlignVCenter,
        Qt::AlignLeft|Qt::AlignVCenter,
        Qt::AlignRight|Qt::AlignVCenter
    };

// Comparison operator for sort/binary search of model tx list
struct TxLessThan
{
    bool operator()(const TransactionRecord &a, const TransactionRecord &b) const
    {
        return a.hash < b.hash;
    }
    bool operator()(const TransactionRecord &a, const uint256 &b) const
    {
        return a.hash < b;
    }
    bool operator()(const uint256 &a, const TransactionRecord &b) const
    {
        return a < b.hash;
    }
};

// Private implementation
struct TransactionTablePriv
{
    TransactionTablePriv(CWallet *wallet, TransactionTableModel *parent):
            wallet(wallet),
            parent(parent)
    {
    }
    CWallet *wallet;
    TransactionTableModel *parent;

    /* Local cache of wallet.
     * As it is in the same order as the CWallet, by definition
     * this is sorted by sha256.
     */
    QList<TransactionRecord> cachedWallet;

    /* Query entire wallet anew from core.
     */
    void refreshWallet()
    {
#ifdef WALLET_UPDATE_DEBUG
        qDebug() << "refreshWallet";
#endif
        cachedWallet.clear();
        CRITICAL_BLOCK(wallet->cs_mapWallet)
        {
            for(std::map<uint256, CWalletTx>::iterator it = wallet->mapWallet.begin(); it != wallet->mapWallet.end(); ++it)
            {
                cachedWallet.append(TransactionRecord::decomposeTransaction(wallet, it->second));
            }
        }
    }

    /* Update our model of the wallet incrementally, to synchronize our model of the wallet
       with that of the core.

       Call with list of hashes of transactions that were added, removed or changed.
     */
    void updateWallet(const QList<uint256> &updated)
    {
        // Walk through updated transactions, update model as needed.
#ifdef WALLET_UPDATE_DEBUG
        qDebug() << "updateWallet";
#endif
        // Sort update list, and iterate through it in reverse, so that model updates
        //  can be emitted from end to beginning (so that earlier updates will not influence
        // the indices of latter ones).
        QList<uint256> updated_sorted = updated;
        qSort(updated_sorted);

        CRITICAL_BLOCK(wallet->cs_mapWallet)
        {
            for(int update_idx = updated_sorted.size()-1; update_idx >= 0; --update_idx)
            {
                const uint256 &hash = updated_sorted.at(update_idx);
                /* Find transaction in wallet */
                std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
                bool inWallet = mi != wallet->mapWallet.end();
                /* Find bounds of this transaction in model */
                QList<TransactionRecord>::iterator lower = qLowerBound(
                    cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
                QList<TransactionRecord>::iterator upper = qUpperBound(
                    cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
                int lowerIndex = (lower - cachedWallet.begin());
                int upperIndex = (upper - cachedWallet.begin());

                // Determine if transaction is in model already
                bool inModel = false;
                if(lower != upper)
                {
                    inModel = true;
                }

#ifdef WALLET_UPDATE_DEBUG
                qDebug() << "  " << QString::fromStdString(hash.ToString()) << inWallet << " " << inModel
                        << lowerIndex << "-" << upperIndex;
#endif

                if(inWallet && !inModel)
                {
                    // Added -- insert at the right position
                    QList<TransactionRecord> toInsert =
                            TransactionRecord::decomposeTransaction(wallet, mi->second);
                    if(!toInsert.isEmpty()) /* only if something to insert */
                    {
                        parent->beginInsertRows(QModelIndex(), lowerIndex, lowerIndex+toInsert.size()-1);
                        int insert_idx = lowerIndex;
                        foreach(const TransactionRecord &rec, toInsert)
                        {
                            cachedWallet.insert(insert_idx, rec);
                            insert_idx += 1;
                        }
                        parent->endInsertRows();
                    }
                }
                else if(!inWallet && inModel)
                {
                    // Removed -- remove entire transaction from table
                    parent->beginRemoveRows(QModelIndex(), lowerIndex, upperIndex-1);
                    cachedWallet.erase(lower, upper);
                    parent->endRemoveRows();
                }
                else if(inWallet && inModel)
                {
                    // Updated -- nothing to do, status update will take care of this
                }
            }
        }
    }

    int size()
    {
        return cachedWallet.size();
    }

    TransactionRecord *index(int idx)
    {
        if(idx >= 0 && idx < cachedWallet.size())
        {
            TransactionRecord *rec = &cachedWallet[idx];

            // If a status update is needed (blocks came in since last check),
            //  update the status of this transaction from the wallet. Otherwise,
            // simply re-use the cached status.
            if(rec->statusUpdateNeeded())
            {
                CRITICAL_BLOCK(wallet->cs_mapWallet)
                {
                    std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(rec->hash);

                    if(mi != wallet->mapWallet.end())
                    {
                        rec->updateStatus(mi->second);
                    }
                }
            }
            return rec;
        }
        else
        {
            return 0;
        }
    }

    QString describe(TransactionRecord *rec)
    {
        CRITICAL_BLOCK(wallet->cs_mapWallet)
        {
            std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(rec->hash);
            if(mi != wallet->mapWallet.end())
            {
                return QString::fromStdString(TransactionDesc::toHTML(wallet, mi->second));
            }
        }
        return QString("");
    }

};

TransactionTableModel::TransactionTableModel(CWallet* wallet, QObject *parent):
        QAbstractTableModel(parent),
        wallet(wallet),
        priv(new TransactionTablePriv(wallet, this))
{
    columns << tr("Status") << tr("Date") << tr("Type") << tr("Address") << tr("Amount");

    priv->refreshWallet();

    QTimer *timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(update()));
    timer->start(MODEL_UPDATE_DELAY);
}

TransactionTableModel::~TransactionTableModel()
{
    delete priv;
}

void TransactionTableModel::update()
{
    QList<uint256> updated;

    // Check if there are changes to wallet map
    TRY_CRITICAL_BLOCK(wallet->cs_mapWallet)
    {
        if(!wallet->vWalletUpdated.empty())
        {
            BOOST_FOREACH(uint256 hash, wallet->vWalletUpdated)
            {
                updated.append(hash);
            }
            wallet->vWalletUpdated.clear();
        }
    }

    if(!updated.empty())
    {
        priv->updateWallet(updated);

        // Status (number of confirmations) and (possibly) description
        //  columns changed for all rows.
        emit dataChanged(index(0, Status), index(priv->size()-1, Status));
        emit dataChanged(index(0, ToAddress), index(priv->size()-1, ToAddress));
    }
}

int TransactionTableModel::rowCount(const QModelIndex &parent) const
{
    Q_UNUSED(parent);
    return priv->size();
}

int TransactionTableModel::columnCount(const QModelIndex &parent) const
{
    Q_UNUSED(parent);
    return columns.length();
}

QVariant TransactionTableModel::formatTxStatus(const TransactionRecord *wtx) const
{
    QString status;

    switch(wtx->status.status)
    {
    case TransactionStatus::OpenUntilBlock:
        status = tr("Open for %n block(s)","",wtx->status.open_for);
        break;
    case TransactionStatus::OpenUntilDate:
        status = tr("Open until %1").arg(GUIUtil::DateTimeStr(wtx->status.open_for));
        break;
    case TransactionStatus::Offline:
        status = tr("Offline (%1)").arg(wtx->status.depth);
        break;
    case TransactionStatus::Unconfirmed:
        status = tr("Unconfirmed (%1/%2)").arg(wtx->status.depth).arg(TransactionRecord::NumConfirmations);
        break;
    case TransactionStatus::HaveConfirmations:
        status = tr("Confirmed (%1)").arg(wtx->status.depth);
        break;
    }

    return QVariant(status);
}

QVariant TransactionTableModel::formatTxDate(const TransactionRecord *wtx) const
{
    if(wtx->time)
    {
        return QVariant(GUIUtil::DateTimeStr(wtx->time));
    }
    else
    {
        return QVariant();
    }
}

/* Look up label for address in address book, if not found return empty string.
   This should really move to the wallet class.
 */
QString TransactionTableModel::labelForAddress(const std::string &address) const
{
    CRITICAL_BLOCK(wallet->cs_mapAddressBook)
    {
        std::map<std::string, std::string>::iterator mi = wallet->mapAddressBook.find(address);
        if (mi != wallet->mapAddressBook.end())
        {
            return QString::fromStdString(mi->second);
        }
    }
    return QString();
}

/* Look up address in address book, if found return
     address[0:12]... (label)
   otherwise just return address
 */
QString TransactionTableModel::lookupAddress(const std::string &address) const
{
    QString label = labelForAddress(address);
    QString description;
    if(label.isEmpty())
    {
        description = QString::fromStdString(address);
    }
    else
    {
        description = QString::fromStdString(address.substr(0,12)) + QString("... (") + label + QString(")");
    }
    return description;
}

QVariant TransactionTableModel::formatTxType(const TransactionRecord *wtx) const
{
    QString description;

    switch(wtx->type)
    {
    case TransactionRecord::RecvWithAddress:
        description = tr("Received with");
        break;
    case TransactionRecord::RecvFromIP:
        description = tr("Received from IP");
        break;
    case TransactionRecord::SendToAddress:
        description = tr("Sent to");
        break;
    case TransactionRecord::SendToIP:
        description = tr("Sent to IP");
        break;
    case TransactionRecord::SendToSelf:
        description = tr("Payment to yourself");
        break;
    case TransactionRecord::Generated:
        description = tr("Generated");
        break;
    }
    return QVariant(description);
}

QVariant TransactionTableModel::formatTxToAddress(const TransactionRecord *wtx) const
{
    QString description;

    switch(wtx->type)
    {
    case TransactionRecord::RecvWithAddress:
        description = lookupAddress(wtx->address);
        break;
    case TransactionRecord::RecvFromIP:
        description = QString::fromStdString(wtx->address);
        break;
    case TransactionRecord::SendToAddress:
        description = lookupAddress(wtx->address);
        break;
    case TransactionRecord::SendToIP:
        description = QString::fromStdString(wtx->address);
        break;
    case TransactionRecord::SendToSelf:
        description = QString();
        break;
    case TransactionRecord::Generated:
        switch(wtx->status.maturity)
        {
        case TransactionStatus::Immature:
            description = tr("(matures in %n more blocks)", "",
                           wtx->status.matures_in);
            break;
        case TransactionStatus::Mature:
            description = QString();
            break;
        case TransactionStatus::MaturesWarning:
            description = tr("(Warning: This block was not received by any other nodes and will probably not be accepted!)");
            break;
        case TransactionStatus::NotAccepted:
            description = tr("(not accepted)");
            break;
        }
        break;
    }
    return QVariant(description);
}

QVariant TransactionTableModel::formatTxAmount(const TransactionRecord *wtx) const
{
    QString str = QString::fromStdString(FormatMoney(wtx->credit + wtx->debit));
    if(!wtx->status.confirmed || wtx->status.maturity != TransactionStatus::Mature)
    {
        str = QString("[") + str + QString("]");
    }
    return QVariant(str);
}

QVariant TransactionTableModel::formatTxDecoration(const TransactionRecord *wtx) const
{
    switch(wtx->status.status)
    {
    case TransactionStatus::OpenUntilBlock:
    case TransactionStatus::OpenUntilDate:
        return QColor(64,64,255);
        break;
    case TransactionStatus::Offline:
        return QColor(192,192,192);
    case TransactionStatus::Unconfirmed:
        switch(wtx->status.depth)
        {
        case 0: return QIcon(":/icons/transaction_0");
        case 1: return QIcon(":/icons/transaction_1");
        case 2: return QIcon(":/icons/transaction_2");
        case 3: return QIcon(":/icons/transaction_3");
        case 4: return QIcon(":/icons/transaction_4");
        default: return QIcon(":/icons/transaction_5");
        };
    case TransactionStatus::HaveConfirmations:
        return QIcon(":/icons/transaction_confirmed");
    }
    return QColor(0,0,0);
}

QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
{
    if(!index.isValid())
        return QVariant();
    TransactionRecord *rec = static_cast<TransactionRecord*>(index.internalPointer());

    if(role == Qt::DecorationRole)
    {
        if(index.column() == Status)
        {
            return formatTxDecoration(rec);
        }
    }
    else if(role == Qt::DisplayRole)
    {
        // Delegate to specific column handlers
        switch(index.column())
        {
        case Date:
            return formatTxDate(rec);
        case Type:
            return formatTxType(rec);
        case ToAddress:
            return formatTxToAddress(rec);
        case Amount:
            return formatTxAmount(rec);
        }
    }
    else if(role == Qt::EditRole)
    {
        // Edit role is used for sorting so return the real values
        switch(index.column())
        {
        case Status:
            return QString::fromStdString(rec->status.sortKey);
        case Date:
            return rec->time;
        case Type:
            return formatTxType(rec);
        case ToAddress:
            return formatTxToAddress(rec);
        case Amount:
            return rec->credit + rec->debit;
        }
    }
    else if (role == Qt::ToolTipRole)
    {
        if(index.column() == Status)
        {
            return formatTxStatus(rec);
        }
    }
    else if (role == Qt::TextAlignmentRole)
    {
        return column_alignments[index.column()];
    }
    else if (role == Qt::ForegroundRole)
    {
        /* Non-confirmed transactions are grey */
        if(!rec->status.confirmed)
        {
            return QColor(128, 128, 128);
        }
        if(index.column() == Amount && (rec->credit+rec->debit) < 0)
        {
            return QColor(255, 0, 0);
        }
    }
    else if (role == TypeRole)
    {
        return rec->type;
    }
    else if (role == DateRole)
    {
        return QDateTime::fromTime_t(static_cast<uint>(rec->time));
    }
    else if (role == LongDescriptionRole)
    {
        return priv->describe(rec);
    }
    else if (role == AddressRole)
    {
        return QString::fromStdString(rec->address);
    }
    else if (role == LabelRole)
    {
        return labelForAddress(rec->address);
    }
    else if (role == AbsoluteAmountRole)
    {
        return llabs(rec->credit + rec->debit);
    }
    return QVariant();
}

QVariant TransactionTableModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if(orientation == Qt::Horizontal)
    {
        if(role == Qt::DisplayRole)
        {
            return columns[section];
        }
        else if (role == Qt::TextAlignmentRole)
        {
            return column_alignments[section];
        } else if (role == Qt::ToolTipRole)
        {
            switch(section)
            {
            case Status:
                return tr("Transaction status. Hover over this field to show number of confirmations.");
            case Date:
                return tr("Date and time that the transaction was received.");
            case Type:
                return tr("Type of transaction.");
            case ToAddress:
                return tr("Destination address of transaction.");
            case Amount:
                return tr("Amount removed from or added to balance.");
            }
        }
    }
    return QVariant();
}

Qt::ItemFlags TransactionTableModel::flags(const QModelIndex &index) const
{
    return QAbstractTableModel::flags(index);
}

QModelIndex TransactionTableModel::index(int row, int column, const QModelIndex &parent) const
{
    Q_UNUSED(parent);
    TransactionRecord *data = priv->index(row);
    if(data)
    {
        return createIndex(row, column, priv->index(row));
    }
    else
    {
        return QModelIndex();
    }
}