[Qt] Fix segfault when launched with -disablewallet

src/qt/bitcoingui.cpp

@@ -159,10 +159,13 @@ BitcoinGUI::BitcoinGUI(bool fIsTestnet, QWidget *parent) :
     labelEncryptionIcon = new QLabel();
     labelConnectionsIcon = new QLabel();
     labelBlocksIcon = new QLabel();
+    if(enableWallet)
+    {
         frameBlocksLayout->addStretch();
         frameBlocksLayout->addWidget(unitDisplayControl);
         frameBlocksLayout->addStretch();
         frameBlocksLayout->addWidget(labelEncryptionIcon);
+    }
     frameBlocksLayout->addStretch();
     frameBlocksLayout->addWidget(labelConnectionsIcon);
     frameBlocksLayout->addStretch();

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()
@@ -648,11 +652,27 @@ void RPCConsole::updateNodeDetail(const CNodeCombinedStats *combinedStats)
         ui->peerBanScore->setText(tr("Fetching..."));
 }
 
+void RPCConsole::initPeerTable()
+{
+    if (!clientModel)
+        return;
+
+    // peerWidget needs a resize in case the dialog has non-default geometry
+    columnResizingFixer->stretchColumnWidth(PeerTableModel::Address);
+
+    // start PeerTableModel auto refresh
+    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);
 }
 
@@ -660,17 +680,16 @@ void RPCConsole::showEvent(QShowEvent *event)
 {
     QWidget::showEvent(event);
 
-    // peerWidget needs a resize in case the dialog has non-default geometry
+    initPeerTable();
-    columnResizingFixer->stretchColumnWidth(PeerTableModel::Address);
-
-    // start PeerTableModel auto refresh
-    clientModel->getPeerTableModel()->startAutoRefresh(1000);
 }
 
 void RPCConsole::hideEvent(QHideEvent *event)
 {
     QWidget::hideEvent(event);
 
+    if (!clientModel)
+        return;
+
     // stop PeerTableModel auto refresh
     clientModel->getPeerTableModel()->stopAutoRefresh();
 }

src/qt/rpcconsole.h

@@ -47,6 +47,8 @@ protected:
 private:
     /** show detailed information on ui about selected node */
     void updateNodeDetail(const CNodeCombinedStats *combinedStats);
+    /** initialize peer table */
+    void initPeerTable();
 
     enum ColumnWidths
     {