WalletModel::WalletModel(CWallet *wallet, QObject *parent) :
QObject(parent), wallet(wallet), optionsModel(0), addressTableModel(0),
- transactionTableModel(0)
+ transactionTableModel(0),
+ cachedBalance(0), cachedUnconfirmedBalance(0), cachedNumTransactions(0)
{
// Until signal notifications is built into the bitcoin core,
// simply update everything after polling using a timer.
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(), wallet->GetUnconfirmedBalance());
- emit numTransactionsChanged(getNumTransactions());
+ qint64 newBalance = getBalance();
+ qint64 newUnconfirmedBalance = getUnconfirmedBalance();
+ int newNumTransactions = getNumTransactions();
+
+ if(cachedBalance != newBalance || cachedUnconfirmedBalance != newUnconfirmedBalance)
+ emit balanceChanged(newBalance, newUnconfirmedBalance);
+
+ if(cachedNumTransactions != newNumTransactions)
+ emit numTransactionsChanged(newNumTransactions);
+
+ cachedBalance = newBalance;
+ cachedUnconfirmedBalance = newUnconfirmedBalance;
+ cachedNumTransactions = newNumTransactions;
addressTableModel->update();
}