aboutsummaryrefslogtreecommitdiff
path: root/src/qt/walletmodel.cpp
blob: f962b9a7c7445bc554a10cc66044069199017164 (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
#include "walletmodel.h"
#include "guiconstants.h"
#include "optionsmodel.h"
#include "addresstablemodel.h"
#include "transactiontablemodel.h"

#include "headers.h"

#include <QTimer>

WalletModel::WalletModel(CWallet *wallet, QObject *parent) :
    QObject(parent), wallet(wallet), optionsModel(0), addressTableModel(0),
    transactionTableModel(0)
{
    // Until signal notifications is built into the bitcoin core,
    //  simply update everything after polling using a timer.
    QTimer *timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(update()));
    timer->start(MODEL_UPDATE_DELAY);

    optionsModel = new OptionsModel(wallet, this);
    addressTableModel = new AddressTableModel(wallet, this);
    transactionTableModel = new TransactionTableModel(wallet, this);
}

qint64 WalletModel::getBalance() const
{
    return wallet->GetBalance();
}

int WalletModel::getNumTransactions() const
{
    int numTransactions = 0;
    CRITICAL_BLOCK(wallet->cs_mapWallet)
    {
        numTransactions = wallet->mapWallet.size();
    }
    return numTransactions;
}

void WalletModel::update()
{
    // Plainly emit all signals for now. To be more efficient this should check
    //   whether the values actually changed first, although it'd be even better if these
    //   were events coming in from the bitcoin core.
    emit balanceChanged(getBalance());
    emit numTransactionsChanged(getNumTransactions());

    addressTableModel->update();
}

WalletModel::StatusCode WalletModel::sendCoins(const QString &payTo, qint64 payAmount, const QString &addToAddressBookAs)
{
    uint160 hash160 = 0;
    bool valid = false;

    if(!AddressToHash160(payTo.toUtf8().constData(), hash160))
    {
        return InvalidAddress;
    }

    if(payAmount <= 0)
    {
        return InvalidAmount;
    }

    if(payAmount > getBalance())
    {
        return AmountExceedsBalance;
    }

    if((payAmount + nTransactionFee) > getBalance())
    {
        return AmountWithFeeExceedsBalance;
    }

    CRITICAL_BLOCK(cs_main)
    {
        // Send to bitcoin address
        CWalletTx wtx;
        CScript scriptPubKey;
        scriptPubKey << OP_DUP << OP_HASH160 << hash160 << OP_EQUALVERIFY << OP_CHECKSIG;

        std::string strError = wallet->SendMoney(scriptPubKey, payAmount, wtx, true);
        if (strError == "")
        {
            // OK
        }
        else if (strError == "ABORTED")
        {
            return Aborted;
        }
        else
        {
            emit error(tr("Sending..."), QString::fromStdString(strError));
            return MiscError;
        }
    }

    // Add addresses that we've sent to to the address book
    std::string strAddress = payTo.toStdString();
    CRITICAL_BLOCK(wallet->cs_mapAddressBook)
    {
        if (!wallet->mapAddressBook.count(strAddress))
            wallet->SetAddressBookName(strAddress, addToAddressBookAs.toStdString());
    }

    return OK;
}

OptionsModel *WalletModel::getOptionsModel()
{
    return optionsModel;
}

AddressTableModel *WalletModel::getAddressTableModel()
{
    return addressTableModel;
}

TransactionTableModel *WalletModel::getTransactionTableModel()
{
    return transactionTableModel;
}

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