[Qt] Fix segfault when launched with -disablewallet

src/qt/rpcconsole.cpp

@@ -473,6 +473,10 @@ void RPCConsole::on_tabWidget_currentChanged(int index)
     {
         ui->lineEdit->setFocus();
     }
+    else if(ui->tabWidget->widget(index) == ui->tab_peers)
+    {
+        initPeerTable();
+    }
 }
 
 void RPCConsole::on_openDebugLogfileButton_clicked()
@@ -648,17 +652,10 @@ void RPCConsole::updateNodeDetail(const CNodeCombinedStats *combinedStats)
         ui->peerBanScore->setText(tr("Fetching..."));
 }
 
-// We override the virtual resizeEvent of the QWidget to adjust tables column
-// sizes as the tables width is proportional to the dialogs width.
-void RPCConsole::resizeEvent(QResizeEvent *event)
+void RPCConsole::initPeerTable()
 {
-    QWidget::resizeEvent(event);
-    columnResizingFixer->stretchColumnWidth(PeerTableModel::Address);
-}
-
-void RPCConsole::showEvent(QShowEvent *event)
-{
-    QWidget::showEvent(event);
+    if (!clientModel)
+        return;
 
     // peerWidget needs a resize in case the dialog has non-default geometry
     columnResizingFixer->stretchColumnWidth(PeerTableModel::Address);
@@ -667,10 +664,32 @@ void RPCConsole::showEvent(QShowEvent *event)
     clientModel->getPeerTableModel()->startAutoRefresh(1000);
 }
 
+// We override the virtual resizeEvent of the QWidget to adjust tables column
+// sizes as the tables width is proportional to the dialogs width.
+void RPCConsole::resizeEvent(QResizeEvent *event)
+{
+    QWidget::resizeEvent(event);
+
+    if (!clientModel)
+        return;
+
+    columnResizingFixer->stretchColumnWidth(PeerTableModel::Address);
+}
+
+void RPCConsole::showEvent(QShowEvent *event)
+{
+    QWidget::showEvent(event);
+
+    initPeerTable();
+}
+
 void RPCConsole::hideEvent(QHideEvent *event)
 {
     QWidget::hideEvent(event);
 
+    if (!clientModel)
+        return;
+
     // stop PeerTableModel auto refresh
     clientModel->getPeerTableModel()->stopAutoRefresh();
 }