Implement stingy selection mode for tuning patterns.

pcbnew/generators/pcb_tuning_pattern.cpp

@@ -328,6 +328,7 @@ public:
     {
         aCount = 0;
         aLayers[aCount++] = LAYER_ANCHOR;
+        aLayers[aCount++] = GetLayer();
     }
 
     bool HitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const override

pcbnew/pcb_draw_panel_gal.cpp

@@ -35,6 +35,7 @@
 #include <pcb_track.h>
 #include <macros.h>
 #include <pcb_marker.h>
+#include <pcb_generator.h>
 #include <pcb_base_frame.h>
 #include <pcbnew_settings.h>
 #include <ratsnest/ratsnest_data.h>
@@ -290,6 +291,9 @@ void PCB_DRAW_PANEL_GAL::DisplayBoard( BOARD* aBoard, PROGRESS_REPORTER* aReport
     for( ZONE* zone : aBoard->Zones() )
         m_view->Add( zone );
 
+    for( PCB_GENERATOR* generator : aBoard->Generators() )
+        m_view->Add( generator );
+
     // Ratsnest
     if( !aBoard->IsFootprintHolder() )
     {

pcbnew/tools/pcb_selection_tool.cpp

@@ -2660,6 +2660,9 @@ bool PCB_SELECTION_TOOL::Selectable( const BOARD_ITEM* aItem, bool checkVisibili
         return false;
     }
 
+    if( aItem->GetParentGroup() && aItem->GetParentGroup()->Type() == PCB_GENERATOR_T )
+        return false;
+
     const ZONE*     zone = nullptr;
     const PCB_VIA*  via = nullptr;
     const PAD*      pad = nullptr;