[Qt] rescan progress

src/qt/splashscreen.cpp

@@ -5,8 +5,12 @@
 #include "splashscreen.h"
 
 #include "clientversion.h"
+#include "init.h"
 #include "ui_interface.h"
 #include "util.h"
+#ifdef ENABLE_WALLET
+#include "wallet.h"
+#endif
 
 #include <QApplication>
 #include <QPainter>
@@ -109,14 +113,33 @@ static void InitMessage(SplashScreen *splash, const std::string &message)
         Q_ARG(QColor, QColor(55,55,55)));
 }
 
+static void ShowProgress(SplashScreen *splash, const std::string &title, int nProgress)
+{
+    InitMessage(splash, title + strprintf("%d", nProgress) + "%");
+}
+
+#ifdef ENABLE_WALLET
+static void ConnectWallet(SplashScreen *splash, CWallet* wallet)
+{
+    wallet->ShowProgress.connect(boost::bind(ShowProgress, splash, _1, _2));
+}
+#endif
+
 void SplashScreen::subscribeToCoreSignals()
 {
     // Connect signals to client
     uiInterface.InitMessage.connect(boost::bind(InitMessage, this, _1));
+#ifdef ENABLE_WALLET
+    uiInterface.LoadWallet.connect(boost::bind(ConnectWallet, this, _1));
+#endif
 }
 
 void SplashScreen::unsubscribeFromCoreSignals()
 {
     // Disconnect signals from client
     uiInterface.InitMessage.disconnect(boost::bind(InitMessage, this, _1));
+#ifdef ENABLE_WALLET
+    if(pwalletMain)
+        pwalletMain->ShowProgress.disconnect(boost::bind(ShowProgress, this, _1, _2));
+#endif
 }

src/qt/walletmodel.cpp

@@ -419,8 +419,17 @@ 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)
+    {
+        vQueueNotifications.push_back(make_pair(hash, status));
+        return;
+    }
+
     QString strHash = QString::fromStdString(hash.GetHex());
 
     qDebug() << "NotifyTransactionChanged : " + strHash + " status= " + QString::number(status);
@@ -429,12 +438,32 @@ static void NotifyTransactionChanged(WalletModel *walletmodel, CWallet *wallet,
                               Q_ARG(int, status));
 }
 
+static void ShowProgress(WalletModel *walletmodel, const std::string &title, int nProgress)
+{
+    // emits signal "showProgress"
+    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()
 {
     // Connect signals to wallet
     wallet->NotifyStatusChanged.connect(boost::bind(&NotifyKeyStoreStatusChanged, this, _1));
     wallet->NotifyAddressBookChanged.connect(boost::bind(NotifyAddressBookChanged, this, _1, _2, _3, _4, _5, _6));
     wallet->NotifyTransactionChanged.connect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
+    wallet->ShowProgress.connect(boost::bind(ShowProgress, this, _1, _2));
 }
 
 void WalletModel::unsubscribeFromCoreSignals()
@@ -443,6 +472,7 @@ void WalletModel::unsubscribeFromCoreSignals()
     wallet->NotifyStatusChanged.disconnect(boost::bind(&NotifyKeyStoreStatusChanged, this, _1));
     wallet->NotifyAddressBookChanged.disconnect(boost::bind(NotifyAddressBookChanged, this, _1, _2, _3, _4, _5, _6));
     wallet->NotifyTransactionChanged.disconnect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
+    wallet->ShowProgress.disconnect(boost::bind(ShowProgress, this, _1, _2));
 }
 
 // WalletModel::UnlockContext implementation

src/qt/walletmodel.h

@@ -237,6 +237,9 @@ signals:
     // Coins sent: from wallet, to recipient, in (serialized) transaction:
     void coinsSent(CWallet* wallet, SendCoinsRecipient recipient, QByteArray transaction);
 
+    // Show progress dialog e.g. for rescan
+    void showProgress(const QString &title, int nProgress);
+
 public slots:
     /* Wallet status might have changed */
     void updateStatus();

src/qt/walletview.cpp

@@ -24,6 +24,7 @@
 #include <QActionGroup>
 #include <QFileDialog>
 #include <QHBoxLayout>
+#include <QProgressDialog>
 #include <QPushButton>
 #include <QVBoxLayout>
 
@@ -127,6 +128,9 @@ void WalletView::setWalletModel(WalletModel *walletModel)
 
         // Ask for passphrase if needed
         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
+
+        // Show progress dialog
+        connect(walletModel, SIGNAL(showProgress(QString,int)), this, SLOT(showProgress(QString,int)));
     }
 }
 
@@ -277,3 +281,26 @@ void WalletView::usedReceivingAddresses()
     dlg->setModel(walletModel->getAddressTableModel());
     dlg->show();
 }
+
+void WalletView::showProgress(const QString &title, int nProgress)
+{
+    if (nProgress == 0)
+    {
+        progressDialog = new QProgressDialog(title, "", 0, 100);
+        progressDialog->setWindowModality(Qt::ApplicationModal);
+        progressDialog->setMinimumDuration(0);
+        progressDialog->setCancelButton(0);
+        progressDialog->setAutoClose(false);
+        progressDialog->setValue(0);
+    }
+    else if (nProgress == 100)
+    {
+        if (progressDialog)
+        {
+            progressDialog->close();
+            progressDialog->deleteLater();
+        }
+    }
+    else if (progressDialog)
+        progressDialog->setValue(nProgress);
+}

src/qt/walletview.h

@@ -18,6 +18,7 @@ class WalletModel;
 
 QT_BEGIN_NAMESPACE
 class QModelIndex;
+class QProgressDialog;
 QT_END_NAMESPACE
 
 /*
@@ -60,6 +61,8 @@ private:
 
     TransactionView *transactionView;
 
+    QProgressDialog *progressDialog;
+
 public slots:
     /** Switch to overview (home) page */
     void gotoOverviewPage();
@@ -97,6 +100,9 @@ public slots:
     /** Re-emit encryption status signal */
     void updateEncryptionStatus();
 
+    /** Show progress dialog e.g. for rescan */
+    void showProgress(const QString &title, int nProgress);
+
 signals:
     /** Signal that we want to show the main window */
     void showNormalIfMinimized();