Update net inspector after connectivity update when loading board

Fixes issue where if the net inspector was open when a board was
loaded, the track data would not be updated until a board edit
action triggered an update.

pcbnew/pcb_edit_frame.cpp

@@ -1578,6 +1578,10 @@ void PCB_EDIT_FRAME::onBoardLoaded()
     // Updates any auto dimensions and the auxiliary toolbar tracks/via sizes
     unitsChangeRefresh();
 
+    // Sync the net inspector now we have connectivity calculated
+    if( m_netInspectorPanel )
+        m_netInspectorPanel->OnBoardChanged();
+
     // Display the loaded board:
     Zoom_Automatique( false );
 

pcbnew/widgets/net_inspector_panel.h

@@ -65,6 +65,11 @@ public:
      */
     virtual void OnShowPanel() {}
 
+    /**
+     * Notification from file loader when board changed and connectivity rebuilt
+     */
+    virtual void OnBoardChanged() {}
+
 protected:
     // User-driven UI events (override in derrived classes as required)
     virtual void OnSetFocus( wxFocusEvent& event ) { event.Skip(); }

pcbnew/widgets/pcb_net_inspector_panel.cpp

@@ -61,7 +61,6 @@ PCB_NET_INSPECTOR_PANEL::PCB_NET_INSPECTOR_PANEL( wxWindow* parent, PCB_EDIT_FRA
 
     // Connect to board events
     m_frame->Bind( EDA_EVT_UNITS_CHANGED, &PCB_NET_INSPECTOR_PANEL::onUnitsChanged, this );
-    m_frame->Bind( EDA_EVT_BOARD_CHANGED, &PCB_NET_INSPECTOR_PANEL::onBoardChanged, this );
 
     // Connect to wxDataViewCtrl events
     m_netsList->Bind( wxEVT_DATAVIEW_ITEM_EXPANDED, &PCB_NET_INSPECTOR_PANEL::OnExpandCollapseRow,
@@ -89,7 +88,6 @@ PCB_NET_INSPECTOR_PANEL::~PCB_NET_INSPECTOR_PANEL()
 
     // Disconnect from board events
     m_frame->Unbind( EDA_EVT_UNITS_CHANGED, &PCB_NET_INSPECTOR_PANEL::onUnitsChanged, this );
-    m_frame->Unbind( EDA_EVT_BOARD_CHANGED, &PCB_NET_INSPECTOR_PANEL::onBoardChanged, this );
 
     // Connect to wxDataViewCtrl events
     m_netsList->Unbind( wxEVT_DATAVIEW_ITEM_EXPANDED, &PCB_NET_INSPECTOR_PANEL::OnExpandCollapseRow,
@@ -854,7 +852,7 @@ void PCB_NET_INSPECTOR_PANEL::updateDisplayedRowValues( const std::optional<LIST
  * ***************************************************************************************/
 
 
-void PCB_NET_INSPECTOR_PANEL::onBoardChanged( wxCommandEvent& event )
+void PCB_NET_INSPECTOR_PANEL::OnBoardChanged()
 {
     m_brd = m_frame->GetBoard();
 
@@ -871,8 +869,6 @@ void PCB_NET_INSPECTOR_PANEL::onBoardChanged( wxCommandEvent& event )
     buildNetsList( true );
 
     m_board_loading = false;
-
-    event.Skip();
 }
 
 void PCB_NET_INSPECTOR_PANEL::OnBoardItemAdded( BOARD& aBoard, BOARD_ITEM* aBoardItem )

pcbnew/widgets/pcb_net_inspector_panel.h

@@ -85,6 +85,10 @@ public:
     virtual void OnBoardCompositeUpdate( BOARD& aBoard, std::vector<BOARD_ITEM*>& aAddedItems,
                                          std::vector<BOARD_ITEM*>& aRemovedItems,
                                          std::vector<BOARD_ITEM*>& aDeletedItems ) override;
+    /**
+     * Update panel when board is changed
+     */
+    virtual void OnBoardChanged() override;
 
     /**
      * Prepare the panel when shown in the editor
@@ -187,7 +191,6 @@ private:
     void highlightSelectedNets();
 
     void onUnitsChanged( wxCommandEvent& event );
-    void onBoardChanged( wxCommandEvent& event );
     void onSettingsMenu( wxCommandEvent& event );
     void onItemContextMenu( wxCommandEvent& event );
     void onAddNet();