Disable rescanfrom input if rescan is unchecked

src/mainwindow.cpp

@@ -1266,6 +1266,11 @@ void MainWindow::importPrivKey() {
                         tr("Please paste your private keys here, one per line") % ".\n" %
                         tr("The keys will be imported into your connected Hush node"));
 
+    // if rescan is not checked, disable the rescan height input
+    QObject::connect(pui.chkrescan, &QCheckBox::stateChanged, [=](auto checked) {
+        pui.rescanfrom->setEnabled(checked);
+    });
+
     if (d.exec() == QDialog::Accepted && !pui.privKeyTxt->toPlainText().trimmed().isEmpty()) {
         auto rawkeys = pui.privKeyTxt->toPlainText().trimmed().split("\n");
 
@@ -1276,7 +1281,7 @@ void MainWindow::importPrivKey() {
         });
 
         auto keys = new QList<QString>();
-        // split multiple privkeys seperated by spaces on a single line
+        // ignore anything after the first space of a line, such as if you paste a line from z_exportwallet output
         std::transform(keysTmp.begin(), keysTmp.end(), std::back_inserter(*keys), [=](auto key) {
             return key.trimmed().split(" ")[0];
         });
@@ -1302,17 +1307,8 @@ void MainWindow::importPrivKey() {
         });
         DEBUG("found " << keysValidated->size() << " valid privkeys");
 
-        bool rescan = pui.chkrescan->isChecked();
 
-        //TODO: if rescan is not checked, disable the rescan height input
-        // Why don't these work?
-        if (rescan) {
-            //pui.rescanfrom->setEnabled(true);
-            pui.rescanfrom->setReadOnly(false);
-        } else {
-            //pui.rescanfrom->setDisabled(true);
-            pui.rescanfrom->setReadOnly(true);
-        }
+        bool rescan = pui.chkrescan->isChecked();
 
         // avoid giving invalid data to RPCs and a rescan if there were no valid privkeys
         if(keysValidated->size() == 0) {