Merge pull request #177 from UdjinM6/v0.11.1.x_fix_gui_performance_issues

V0.11.2.x Performance and UI Fixes Pack

src/core.cpp

@@ -54,6 +54,7 @@ void CTxIn::print() const
 CTxOut::CTxOut(int64_t nValueIn, CScript scriptPubKeyIn)
 {
     nValue = nValueIn;
+    nRounds = -10; // an initial value, should be no way to get this by calculations
     scriptPubKey = scriptPubKeyIn;
 }
 

src/core.h

@@ -153,6 +153,7 @@ class CTxOut
 {
 public:
     int64_t nValue;
+    int nRounds;
     CScript scriptPubKey;
 
     CTxOut()
@@ -171,6 +172,7 @@ public:
     void SetNull()
     {
         nValue = -1;
+        nRounds = -10; // an initial value, should be no way to get this by calculations
         scriptPubKey.clear();
     }
 
@@ -197,6 +199,7 @@ public:
     friend bool operator==(const CTxOut& a, const CTxOut& b)
     {
         return (a.nValue       == b.nValue &&
+                a.nRounds      == b.nRounds &&
                 a.scriptPubKey == b.scriptPubKey);
     }
 

src/darksend.cpp

@@ -395,41 +395,91 @@ int randomizeList (int i) { return std::rand()%i;}
 // Recursively determine the rounds of a given input (How deep is the darksend chain for a given input)
 int GetInputDarksendRounds(CTxIn in, int rounds)
 {
+    static std::map<uint256, CWalletTx> mDenomWtxes;
+
     if(rounds >= 17) return rounds;
 
-    std::string padding = "";
+    uint256 hash = in.prevout.hash;
-    padding.insert(0, ((rounds+1)*5)+3, ' ');
+    uint nout = in.prevout.n;
 
-    CWalletTx tx;
+    CWalletTx wtx;
-    if(pwalletMain->GetTransaction(in.prevout.hash,tx))
+    if(pwalletMain->GetTransaction(hash, wtx))
     {
-        // bounds check
+        std::map<uint256, CWalletTx>::const_iterator mdwi = mDenomWtxes.find(hash);
-        if(in.prevout.n >= tx.vout.size()) return -4;
+        // not known yet, let's add it
+        if(mdwi == mDenomWtxes.end())
+        {
+            if(fDebug) LogPrintf("GetInputDarksendRounds INSERTING %s\n", hash.ToString());
+            mDenomWtxes[hash] = wtx;
+        }
+        // found and it's not an initial value, just return it
+        else if(mDenomWtxes[hash].vout[nout].nRounds != -10)
+        {
+            if(fDebug) LogPrintf("GetInputDarksendRounds INFO      %s %3d %d\n", hash.ToString(), nout, mDenomWtxes[hash].vout[nout].nRounds);
+            return mDenomWtxes[hash].vout[nout].nRounds;
+        }
 
-        if(tx.vout[in.prevout.n].nValue == DARKSEND_FEE) return -3;
+
+        // bounds check
+        if(nout >= wtx.vout.size())
+        {
+            mDenomWtxes[hash].vout[nout].nRounds = -4;
+            if(fDebug) LogPrintf("GetInputDarksendRounds UPDATED   %s %3d %d\n", hash.ToString(), nout, mDenomWtxes[hash].vout[nout].nRounds);
+            return mDenomWtxes[hash].vout[nout].nRounds;
+        }
+
+        mDenomWtxes[hash].vout[nout].nRounds = -3;
+        if(pwalletMain->IsCollateralAmount(wtx.vout[nout].nValue))
+        {
+            mDenomWtxes[hash].vout[nout].nRounds = -3;
+            if(fDebug) LogPrintf("GetInputDarksendRounds UPDATED   %s %3d %d\n", hash.ToString(), nout, mDenomWtxes[hash].vout[nout].nRounds);
+            return mDenomWtxes[hash].vout[nout].nRounds;
+        }
 
         //make sure the final output is non-denominate
-        if(rounds == 0 && !pwalletMain->IsDenominatedAmount(tx.vout[in.prevout.n].nValue)) return -2; //NOT DENOM
+        mDenomWtxes[hash].vout[nout].nRounds = -2;
-
+        if(/*rounds == 0 && */!pwalletMain->IsDenominatedAmount(wtx.vout[nout].nValue)) //NOT DENOM
-        bool found = false;
-        BOOST_FOREACH(CTxOut out, tx.vout)
         {
-            found = pwalletMain->IsDenominatedAmount(out.nValue);
+            mDenomWtxes[hash].vout[nout].nRounds = -2;
-            if(found) break; // no need to loop more
+            if(fDebug) LogPrintf("GetInputDarksendRounds UPDATED   %s %3d %d\n", hash.ToString(), nout, mDenomWtxes[hash].vout[nout].nRounds);
+            return mDenomWtxes[hash].vout[nout].nRounds;
         }
-        if(!found) return rounds - 1; //NOT FOUND, "-1" because of the pre-mixing creation of denominated amounts
 
-        // find my vin and look that up
+        bool fAllDenoms = true;
-        BOOST_FOREACH(CTxIn in2, tx.vin)
+        BOOST_FOREACH(CTxOut out, wtx.vout)
+        {
+            fAllDenoms = fAllDenoms && pwalletMain->IsDenominatedAmount(out.nValue);
+        }
+        // this one is denominated but there is another non-denominated output found in the same tx
+        if(!fAllDenoms)
+        {
+            mDenomWtxes[hash].vout[nout].nRounds = 0;
+            if(fDebug) LogPrintf("GetInputDarksendRounds UPDATED   %s %3d %d\n", hash.ToString(), nout, mDenomWtxes[hash].vout[nout].nRounds);
+            return mDenomWtxes[hash].vout[nout].nRounds;
+        }
+
+        int nShortest = -10; // an initial value, should be no way to get this by calculations
+        bool fDenomFound = false;
+        // only denoms here so let's look up
+        BOOST_FOREACH(CTxIn in2, wtx.vin)
         {
             if(pwalletMain->IsMine(in2))
             {
-                //LogPrintf("rounds :: %s %s %d NEXT\n", padding.c_str(), in.ToString().c_str(), rounds);
                 int n = GetInputDarksendRounds(in2, rounds+1);
-                if(n != -3) return n;
+                // denom found, find the shortest chain or initially assign nShortest with the first found value
+                if(n >= 0 && (n < nShortest || nShortest == -10))
+                {
+                    nShortest = n;
+                    fDenomFound = true;
                 }
             }
         }
+        mDenomWtxes[hash].vout[nout].nRounds = fDenomFound
+                ? nShortest + 1 // good, we a +1 to the shortest one
+                : 0;            // too bad, we are the fist one in that chain
+        if(fDebug) LogPrintf("GetInputDarksendRounds UPDATED   %s %3d %d\n", hash.ToString(), nout, mDenomWtxes[hash].vout[nout].nRounds);
+        return mDenomWtxes[hash].vout[nout].nRounds;
+    }
 
     return rounds-1;
 }

src/main.cpp

@@ -1776,7 +1776,7 @@ bool IsInitialBlockDownload()
         nLastUpdate = GetTime();
     }
     return (GetTime() - nLastUpdate < 10 &&
-            chainActive.Tip()->GetBlockTime() < GetTime() - 24 * 60 * 60);
+            chainActive.Tip()->GetBlockTime() < GetTime() - 6 * 60 * 60); // ~144 blocks behind -> 2 x fork detection time
 }
 
 CBlockIndex *pindexBestForkTip = NULL, *pindexBestForkBase = NULL;
@@ -1789,7 +1789,7 @@ void CheckForkWarningConditions()
     if (IsInitialBlockDownload())
         return;
 
-    // If our best fork is no longer within 72 blocks (+/- 12 hours if no one mines it)
+    // If our best fork is no longer within 72 blocks (+/- 3 hours if no one mines it)
     // of our head, drop it
     if (pindexBestForkTip && chainActive.Height() - pindexBestForkTip->nHeight >= 72)
         pindexBestForkTip = NULL;
@@ -1842,7 +1842,7 @@ void CheckForkWarningConditionsOnNewFork(CBlockIndex* pindexNewForkTip)
     }
 
     // We define a condition which we should warn the user about as a fork of at least 7 blocks
-    // who's tip is within 72 blocks (+/- 12 hours if no one mines it) of ours
+    // who's tip is within 72 blocks (+/- 3 hours if no one mines it) of ours
     // We use 7 blocks rather arbitrarily as it represents just under 10% of sustained network
     // hash rate operating on the fork.
     // or a chain that is entirely longer than ours and invalid (note that this should be detected by both)

src/qt/bitcoingui.cpp

@@ -170,7 +170,7 @@ BitcoinGUI::BitcoinGUI(bool fIsTestnet, QWidget *parent) :
     // Progress bar and label for blocks download
     progressBarLabel = new QLabel();
     progressBarLabel->setVisible(false);
-    progressBar = new QProgressBar();
+    progressBar = new GUIUtil::ProgressBar();
     progressBar->setAlignment(Qt::AlignCenter);
     progressBar->setVisible(false);
 
@@ -670,7 +670,7 @@ void BitcoinGUI::setNumBlocks(int count)
     tooltip = tr("Processed %1 blocks of transaction history.").arg(count);
 
     // Set icon state: spinning if catching up, tick otherwise
-    if(secs < 90*60)
+    if(secs < 25*60) // 90*60 for bitcoin but we are 4x times faster
     {
         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));

src/qt/forms/overviewpage.ui

@@ -383,25 +383,6 @@
            </item>
           </layout>
          </widget>
-         <widget class="QLabel" name="label_2">
-          <property name="geometry">
-           <rect>
-            <x>10</x>
-            <y>10</y>
-            <width>66</width>
-            <height>20</height>
-           </rect>
-          </property>
-          <property name="font">
-           <font>
-            <weight>75</weight>
-            <bold>true</bold>
-           </font>
-          </property>
-          <property name="text">
-           <string>Darksend</string>
-          </property>
-         </widget>
          <widget class="QPushButton" name="runAutoDenom">
           <property name="geometry">
            <rect>
@@ -943,6 +924,60 @@
            <string>Reset</string>
           </property>
          </widget>
+         <widget class="QWidget" name="">
+          <property name="geometry">
+           <rect>
+            <x>10</x>
+            <y>10</y>
+            <width>431</width>
+            <height>22</height>
+           </rect>
+          </property>
+          <layout class="QHBoxLayout" name="horizontalLayout_5">
+           <item>
+            <widget class="QLabel" name="label_2">
+             <property name="font">
+              <font>
+               <weight>75</weight>
+               <bold>true</bold>
+              </font>
+             </property>
+             <property name="text">
+              <string>Darksend</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QLabel" name="labelDarksendSyncStatus">
+             <property name="toolTip">
+              <string>The displayed information may be out of date. Your wallet automatically synchronizes with the Darkcoin network after a connection is established, but this process has not completed yet.</string>
+             </property>
+             <property name="styleSheet">
+              <string notr="true">QLabel { color: red; }</string>
+             </property>
+             <property name="text">
+              <string notr="true">(out of sync)</string>
+             </property>
+             <property name="alignment">
+              <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <spacer name="horizontalSpacer_4">
+             <property name="orientation">
+              <enum>Qt::Horizontal</enum>
+             </property>
+             <property name="sizeHint" stdset="0">
+              <size>
+               <width>40</width>
+               <height>20</height>
+              </size>
+             </property>
+            </spacer>
+           </item>
+          </layout>
+         </widget>
         </widget>
        </item>
        <item>

src/qt/guiutil.h

@@ -5,9 +5,11 @@
 #ifndef GUIUTIL_H
 #define GUIUTIL_H
 
+#include <QEvent>
 #include <QHeaderView>
 #include <QMessageBox>
 #include <QObject>
+#include <QProgressBar>
 #include <QString>
 #include <QTableView>
 
@@ -177,6 +179,20 @@ namespace GUIUtil
     /* Convert OS specific boost path to QString through UTF-8 */
     QString boostPathToQString(const boost::filesystem::path &path);
 
+#if defined(Q_OS_MAC) && QT_VERSION >= 0x050000
+    // workaround for Qt OSX Bug:
+    // https://bugreports.qt-project.org/browse/QTBUG-15631
+    // QProgressBar uses around 10% CPU even when app is in background
+    class ProgressBar : public QProgressBar
+    {
+        bool event(QEvent *e) {
+            return (e->type() != QEvent::StyleAnimationUpdate) ? QProgressBar::event(e) : false;
+        }
+    };
+#else
+    typedef QProgressBar ProgressBar;
+#endif
+
 } // namespace GUIUtil
 
 #endif // GUIUTIL_H

src/qt/overviewpage.cpp

@@ -124,6 +124,7 @@ OverviewPage::OverviewPage(QWidget *parent) :
 
     // init "out of sync" warning labels
     ui->labelWalletStatus->setText("(" + tr("out of sync") + ")");
+    ui->labelDarksendSyncStatus->setText("(" + tr("out of sync") + ")");
     ui->labelTransactionsStatus->setText("(" + tr("out of sync") + ")");
 
     showingDarkSendMessage = 0;
@@ -253,6 +254,7 @@ void OverviewPage::updateAlerts(const QString &warnings)
 void OverviewPage::showOutOfSyncWarning(bool fShow)
 {
     ui->labelWalletStatus->setVisible(fShow);
+    ui->labelDarksendSyncStatus->setVisible(fShow);
     ui->labelTransactionsStatus->setVisible(fShow);
 }
 
@@ -291,7 +293,7 @@ void OverviewPage::updateDarksendProgress()
     float denomPart = 0;
     if(denominatedBalance > 0)
     {
-        denomPart = (float)pwalletMain->GetNormalizedAnonymizedBalance() / pwalletMain->GetDenominatedBalance();
+        denomPart = (float)pwalletMain->GetNormalizedAnonymizedBalance() / denominatedBalance;
         denomPart = denomPart > 1 ? 1 : denomPart;
     }
 

src/qt/transactiontablemodel.cpp

@@ -91,16 +91,10 @@ public:
 
        Call with transaction that was added, removed or changed.
      */
-    void updateWallet(const uint256 &hash, int status)
+    void updateWallet(const uint256 &hash, int status, bool showTransaction)
     {
 
         qDebug() << "TransactionTablePriv::updateWallet : " + QString::fromStdString(hash.ToString()) + " " + QString::number(status);
-        {
-            LOCK2(cs_main, wallet->cs_wallet);
-
-            // 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(
@@ -111,9 +105,6 @@ public:
         int upperIndex = (upper - cachedWallet.begin());
         bool inModel = (lower != upper);
 
-            // Determine whether to show transaction or not
-            bool showTransaction = (inWallet && TransactionRecord::showTransaction(mi->second));
-
         if(status == CT_UPDATED)
         {
             if(showTransaction && !inModel)
@@ -122,7 +113,7 @@ public:
                 status = CT_DELETED; /* In model, but want to hide, treat as deleted */
         }
 
-            qDebug() << "   inWallet=" + QString::number(inWallet) + " inModel=" + QString::number(inModel) +
+        qDebug() << "    inModel=" + QString::number(inModel) +
                     " Index=" + QString::number(lowerIndex) + "-" + QString::number(upperIndex) +
                     " showTransaction=" + QString::number(showTransaction) + " derivedStatus=" + QString::number(status);
 
@@ -131,16 +122,19 @@ public:
         case CT_NEW:
             if(inModel)
             {
-                    qDebug() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is already in model";
+                qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is already in model";
-                    break;
-                }
-                if(!inWallet)
-                {
-                    qDebug() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is not in wallet";
                 break;
             }
             if(showTransaction)
             {
+                LOCK2(cs_main, wallet->cs_wallet);
+                // Find transaction in wallet
+                std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
+                if(mi == wallet->mapWallet.end())
+                {
+                    qDebug() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is not in wallet";
+                    break;
+                }
                 // Added -- insert at the right position
                 QList<TransactionRecord> toInsert =
                         TransactionRecord::decomposeTransaction(wallet, mi->second);
@@ -160,7 +154,7 @@ public:
         case CT_DELETED:
             if(!inModel)
             {
-                    qDebug() << "TransactionTablePriv::updateWallet : Warning: Got CT_DELETED, but transaction is not in model";
+                qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_DELETED, but transaction is not in model";
                 break;
             }
             // Removed -- remove entire transaction from table
@@ -174,7 +168,6 @@ public:
             break;
         }
     }
-    }
 
     int size()
     {
@@ -234,26 +227,30 @@ TransactionTableModel::TransactionTableModel(CWallet* wallet, WalletModel *paren
         QAbstractTableModel(parent),
         wallet(wallet),
         walletModel(parent),
-        priv(new TransactionTablePriv(wallet, this))
+        priv(new TransactionTablePriv(wallet, this)),
+        fProcessingQueuedTransactions(false)
 {
     columns << QString() << tr("Date") << tr("Type") << tr("Address") << tr("Amount");
 
     priv->refreshWallet();
 
     connect(walletModel->getOptionsModel(), SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
+
+    subscribeToCoreSignals();
 }
 
 TransactionTableModel::~TransactionTableModel()
 {
+    unsubscribeFromCoreSignals();
     delete priv;
 }
 
-void TransactionTableModel::updateTransaction(const QString &hash, int status)
+void TransactionTableModel::updateTransaction(const QString &hash, int status, bool showTransaction)
 {
     uint256 updated;
     updated.SetHex(hash.toStdString());
 
-    priv->updateWallet(updated, status);
+    priv->updateWallet(updated, status, showTransaction);
 }
 
 void TransactionTableModel::updateConfirmations()
@@ -644,3 +641,82 @@ void TransactionTableModel::updateDisplayUnit()
     // emit dataChanged to update Amount column with the current unit
     emit dataChanged(index(0, Amount), index(priv->size()-1, Amount));
 }
+
+// queue notifications to show a non freezing progress dialog e.g. for rescan
+struct TransactionNotification
+{
+public:
+    TransactionNotification() {}
+    TransactionNotification(uint256 hash, ChangeType status, bool showTransaction):
+        hash(hash), status(status), showTransaction(showTransaction) {}
+
+    void invoke(QObject *ttm)
+    {
+        QString strHash = QString::fromStdString(hash.GetHex());
+        qDebug() << "NotifyTransactionChanged : " + strHash + " status= " + QString::number(status);
+        QMetaObject::invokeMethod(ttm, "updateTransaction", Qt::QueuedConnection,
+                                  Q_ARG(QString, strHash),
+                                  Q_ARG(int, status),
+                                  Q_ARG(bool, showTransaction));
+    }
+private:
+    uint256 hash;
+    ChangeType status;
+    bool showTransaction;
+};
+
+static bool fQueueNotifications = false;
+static std::vector< TransactionNotification > vQueueNotifications;
+
+static void NotifyTransactionChanged(TransactionTableModel *ttm, CWallet *wallet, const uint256 &hash, ChangeType status)
+{
+    // Find transaction in wallet
+    std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
+    // Determine whether to show transaction or not (determine this here so that no relocking is needed in GUI thread)
+    bool inWallet = mi != wallet->mapWallet.end();
+    bool showTransaction = (inWallet && TransactionRecord::showTransaction(mi->second));
+
+    TransactionNotification notification(hash, status, showTransaction);
+
+    if (fQueueNotifications)
+    {
+        vQueueNotifications.push_back(notification);
+        return;
+    }
+    notification.invoke(ttm);
+}
+
+static void ShowProgress(TransactionTableModel *ttm, const std::string &title, int nProgress)
+{
+    if (nProgress == 0)
+        fQueueNotifications = true;
+
+    if (nProgress == 100)
+    {
+        fQueueNotifications = false;
+        if (vQueueNotifications.size() > 10) // prevent balloon spam, show maximum 10 balloons
+            QMetaObject::invokeMethod(ttm, "setProcessingQueuedTransactions", Qt::QueuedConnection, Q_ARG(bool, true));
+        for (unsigned int i = 0; i < vQueueNotifications.size(); ++i)
+        {
+            if (vQueueNotifications.size() - i <= 10)
+                QMetaObject::invokeMethod(ttm, "setProcessingQueuedTransactions", Qt::QueuedConnection, Q_ARG(bool, false));
+
+            vQueueNotifications[i].invoke(ttm);
+        }
+        std::vector<TransactionNotification >().swap(vQueueNotifications); // clear
+    }
+}
+
+void TransactionTableModel::subscribeToCoreSignals()
+{
+    // Connect signals to wallet
+    wallet->NotifyTransactionChanged.connect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
+    wallet->ShowProgress.connect(boost::bind(ShowProgress, this, _1, _2));
+}
+
+void TransactionTableModel::unsubscribeFromCoreSignals()
+{
+    // Disconnect signals from wallet
+    wallet->NotifyTransactionChanged.disconnect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
+    wallet->ShowProgress.disconnect(boost::bind(ShowProgress, this, _1, _2));
+}

src/qt/transactiontablemodel.h

@@ -65,12 +65,17 @@ public:
     QVariant data(const QModelIndex &index, int role) const;
     QVariant headerData(int section, Qt::Orientation orientation, int role) const;
     QModelIndex index(int row, int column, const QModelIndex & parent = QModelIndex()) const;
+    bool processingQueuedTransactions() { return fProcessingQueuedTransactions; }
 
 private:
     CWallet* wallet;
     WalletModel *walletModel;
     QStringList columns;
     TransactionTablePriv *priv;
+    bool fProcessingQueuedTransactions;
+
+    void subscribeToCoreSignals();
+    void unsubscribeFromCoreSignals();
 
     QString lookupAddress(const std::string &address, bool tooltip) const;
     QVariant addressColor(const TransactionRecord *wtx) const;
@@ -84,9 +89,12 @@ private:
     QVariant txAddressDecoration(const TransactionRecord *wtx) const;
 
 public slots:
-    void updateTransaction(const QString &hash, int status);
+    /* New transaction, or transaction changed status */
+    void updateTransaction(const QString &hash, int status, bool showTransaction);
     void updateConfirmations();
     void updateDisplayUnit();
+    /* Needed to update fProcessingQueuedTransactions through a QueuedConnection */
+    void setProcessingQueuedTransactions(bool value) { fProcessingQueuedTransactions = value; }
 
     friend class TransactionTablePriv;
 };

src/qt/walletmodel.cpp

@@ -35,6 +35,8 @@ WalletModel::WalletModel(CWallet *wallet, OptionsModel *optionsModel, QObject *p
     cachedEncryptionStatus(Unencrypted),
     cachedNumBlocks(0)
 {
+    fForceCheckBalanceChanged = false;
+
     addressTableModel = new AddressTableModel(wallet, this);
     transactionTableModel = new TransactionTableModel(wallet, this);
     recentRequestsTableModel = new RecentRequestsTableModel(wallet, this);
@@ -71,8 +73,8 @@ qint64 WalletModel::getBalance(const CCoinControl *coinControl) const
 
 qint64 WalletModel::getAnonymizedBalance() const
 {
-    qint64 ret = wallet->GetAnonymizedBalance();
+    if(fLiteMode) return 0;
-    return ret;
+    return wallet->GetAnonymizedBalance();
 }
 
 qint64 WalletModel::getUnconfirmedBalance() const
@@ -149,11 +151,8 @@ void WalletModel::checkBalanceChanged()
     }
 }
 
-void WalletModel::updateTransaction(const QString &hash, int status)
+void WalletModel::updateTransaction()
 {
-    if(transactionTableModel)
-        transactionTableModel->updateTransaction(hash, status);
-
     // Balance and number of transactions might have changed
     checkBalanceChanged();
 
@@ -485,23 +484,12 @@ static void NotifyAddressBookChanged(WalletModel *walletmodel, CWallet *wallet,
                               Q_ARG(int, status));
 }
 
-// queue notifications to show a non freezing progress dialog e.g. for rescan
-static bool fQueueNotifications = false;
-static std::vector<std::pair<uint256, ChangeType> > vQueueNotifications;
 static void NotifyTransactionChanged(WalletModel *walletmodel, CWallet *wallet, const uint256 &hash, ChangeType status)
 {
-    if (fQueueNotifications)
+    Q_UNUSED(wallet);
-    {
+    Q_UNUSED(hash);
-        vQueueNotifications.push_back(make_pair(hash, status));
+    Q_UNUSED(status);
-        return;
+    QMetaObject::invokeMethod(walletmodel, "updateTransaction", Qt::QueuedConnection);
-    }
-
-    QString strHash = QString::fromStdString(hash.GetHex());
-
-    qDebug() << "NotifyTransactionChanged : " + strHash + " status= " + QString::number(status);
-    QMetaObject::invokeMethod(walletmodel, "updateTransaction", Qt::QueuedConnection,
-                              Q_ARG(QString, strHash),
-                              Q_ARG(int, status));
 }
 
 static void ShowProgress(WalletModel *walletmodel, const std::string &title, int nProgress)
@@ -510,17 +498,6 @@ static void ShowProgress(WalletModel *walletmodel, const std::string &title, int
     QMetaObject::invokeMethod(walletmodel, "showProgress", Qt::QueuedConnection,
                               Q_ARG(QString, QString::fromStdString(title)),
                               Q_ARG(int, nProgress));
-
-    if (nProgress == 0)
-        fQueueNotifications = true;
-
-    if (nProgress == 100)
-    {
-        fQueueNotifications = false;
-        BOOST_FOREACH(const PAIRTYPE(uint256, ChangeType)& notification, vQueueNotifications)
-            NotifyTransactionChanged(walletmodel, NULL, notification.first, notification.second);
-        std::vector<std::pair<uint256, ChangeType> >().swap(vQueueNotifications); // clear
-    }
 }
 
 void WalletModel::subscribeToCoreSignals()

src/qt/walletmodel.h

@@ -202,6 +202,7 @@ public:
 
 private:
     CWallet *wallet;
+    bool fForceCheckBalanceChanged;
 
     // Wallet has an options model for wallet-specific options
     // (transaction fee, for example)
@@ -256,7 +257,7 @@ public slots:
     /* Wallet status might have changed */
     void updateStatus();
     /* New transaction, or transaction changed status */
-    void updateTransaction(const QString &hash, int status);
+    void updateTransaction();
     /* New, updated or removed address book entry */
     void updateAddressBook(const QString &address, const QString &label, bool isMine, const QString &purpose, int status);
     /* Current, immature or unconfirmed balance might have changed - emit 'balanceChanged' if so */

src/qt/walletview.cpp

@@ -141,6 +141,8 @@ void WalletView::processNewTransaction(const QModelIndex& parent, int start, int
         return;
 
     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
+    if (!ttm || ttm->processingQueuedTransactions())
+        return;
 
     QString date = ttm->index(start, TransactionTableModel::Date, parent).data().toString();
     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent).data(Qt::EditRole).toULongLong();

src/wallet.cpp

@@ -1092,21 +1092,19 @@ int64_t CWallet::GetAnonymizedBalance() const
 {
     int64_t nTotal = 0;
     {
-        LOCK(cs_wallet);
+        LOCK2(cs_main, cs_wallet);
         for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
 
             if (pcoin->IsTrusted())
             {
-                int nDepth = pcoin->GetDepthInMainChain(false);
+                uint256 hash = (*it).first;
+                for (unsigned int i = 0; i < pcoin->vout.size(); i++)
+                {
+                    CTxIn vin = CTxIn(hash, i);
 
-                for (unsigned int i = 0; i < pcoin->vout.size(); i++) {
+                    if(IsSpent(hash, i) || !IsMine(pcoin->vout[i]) || !IsDenominated(vin)) continue;
-
-                    COutput out = COutput(pcoin, i, nDepth);
-                    CTxIn vin = CTxIn(out.tx->GetHash(), out.i);
-
-                    if(IsSpent(out.tx->GetHash(), i) || !IsMine(pcoin->vout[i]) || !IsDenominated(vin)) continue;
 
                     int rounds = GetInputDarksendRounds(vin);
                     if(rounds >= nDarksendRounds){
@@ -1126,21 +1124,20 @@ double CWallet::GetAverageAnonymizedRounds() const
     double fCount = 0;
 
     {
-        LOCK(cs_wallet);
+        LOCK2(cs_main, cs_wallet);
         for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
 
             if (pcoin->IsTrusted())
             {
-                int nDepth = pcoin->GetDepthInMainChain(false);
+                uint256 hash = (*it).first;
 
                 for (unsigned int i = 0; i < pcoin->vout.size(); i++) {
 
-                    COutput out = COutput(pcoin, i, nDepth);
+                    CTxIn vin = CTxIn(hash, i);
-                    CTxIn vin = CTxIn(out.tx->GetHash(), out.i);
 
-                    if(IsSpent(out.tx->GetHash(), i) || !IsMine(pcoin->vout[i]) || !IsDenominated(vin)) continue;
+                    if(IsSpent(hash, i) || !IsMine(pcoin->vout[i]) || !IsDenominated(vin)) continue;
 
                     int rounds = GetInputDarksendRounds(vin);
                     fTotal += (float)rounds;
@@ -1160,21 +1157,20 @@ int64_t CWallet::GetNormalizedAnonymizedBalance() const
     int64_t nTotal = 0;
 
     {
-        LOCK(cs_wallet);
+        LOCK2(cs_main, cs_wallet);
         for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
 
             if (pcoin->IsTrusted())
             {
-                int nDepth = pcoin->GetDepthInMainChain(false);
+                uint256 hash = (*it).first;
 
                 for (unsigned int i = 0; i < pcoin->vout.size(); i++) {
 
-                    COutput out = COutput(pcoin, i, nDepth);
+                    CTxIn vin = CTxIn(hash, i);
-                    CTxIn vin = CTxIn(out.tx->GetHash(), out.i);
 
-                    if(IsSpent(out.tx->GetHash(), i) || !IsMine(pcoin->vout[i]) || !IsDenominated(vin)) continue;
+                    if(IsSpent(hash, i) || !IsMine(pcoin->vout[i]) || !IsDenominated(vin)) continue;
 
                     int rounds = GetInputDarksendRounds(vin);
                     nTotal += pcoin->vout[i].nValue * rounds / nDarksendRounds;
@@ -1190,7 +1186,7 @@ int64_t CWallet::GetDenominatedBalance(bool onlyDenom, bool onlyUnconfirmed) con
 {
     int64_t nTotal = 0;
     {
-        LOCK(cs_wallet);
+        LOCK2(cs_main, cs_wallet);
         for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
@@ -1202,12 +1198,11 @@ int64_t CWallet::GetDenominatedBalance(bool onlyDenom, bool onlyUnconfirmed) con
 
             bool unconfirmed = (!IsFinalTx(*pcoin) || (!pcoin->IsTrusted() && nDepth == 0));
             if(onlyUnconfirmed != unconfirmed) continue;
+            uint256 hash = (*it).first;
 
             for (unsigned int i = 0; i < pcoin->vout.size(); i++)
             {
-                COutput out = COutput(pcoin, i, nDepth);
+                if(IsSpent(hash, i)) continue;
-
-                if(IsSpent(out.tx->GetHash(), i)) continue;
                 if(!IsMine(pcoin->vout[i])) continue;
                 if(onlyDenom != IsDenominatedAmount(pcoin->vout[i].nValue)) continue;