[Qt] use NotifyHeaderTip's height and date for the progress update

src/qt/bitcoingui.cpp

@@ -717,14 +717,11 @@ void BitcoinGUI::setNumBlocks(int count, const QDateTime& blockDate, double nVer
 {
     if (modalOverlay)
     {
-        if (header) {
-            /* use clientmodels getHeaderTipHeight and getHeaderTipTime because the NotifyHeaderTip signal does not fire when updating the best header */
-            modalOverlay->setKnownBestHeight(clientModel->getHeaderTipHeight(), QDateTime::fromTime_t(clientModel->getHeaderTipTime()));
-        }
-        else {
+        if (header)
+            modalOverlay->setKnownBestHeight(count, blockDate);
+        else
             modalOverlay->tipUpdate(count, blockDate, nVerificationProgress);
     }
-    }
     if (!clientModel)
         return;
 

src/qt/forms/modaloverlay.ui

@@ -219,7 +219,7 @@ QLabel { color: rgb(40,40,40);  }</string>
            <item row="0" column="1">
             <widget class="QLabel" name="numberOfBlocksLeft">
              <property name="text">
-              <string>unknown...</string>
+              <string>Unknown...</string>
              </property>
             </widget>
            </item>
@@ -245,7 +245,7 @@ QLabel { color: rgb(40,40,40);  }</string>
               </sizepolicy>
              </property>
              <property name="text">
-              <string>unknown...</string>
+              <string>Unknown...</string>
              </property>
             </widget>
            </item>

src/qt/modaloverlay.cpp

@@ -132,7 +132,8 @@ void ModalOverlay::tipUpdate(int count, const QDateTime& blockDate, double nVeri
     if (estimateNumHeadersLeft < 24 && hasBestHeader) {
         ui->numberOfBlocksLeft->setText(QString::number(bestHeaderHeight - count));
     } else {
-        ui->expectedTimeLeft->setText(tr("Unknown. Syncing Headers..."));
+        ui->numberOfBlocksLeft->setText(tr("Unknown. Syncing Headers (%1)...").arg(bestHeaderHeight));
+        ui->expectedTimeLeft->setText(tr("Unknown..."));
     }
 }