Default intersheet ref field visibility to off, and show warning

when user tries to edit via Symbol Properties or Field Propeties.

eeschema/dialogs/dialog_field_properties.cpp

@@ -662,6 +662,18 @@ void DIALOG_SCH_FIELD_PROPERTIES::UpdateField( SCH_FIELD* aField, SCH_SHEET_PATH
         else if( fieldType == FOOTPRINT_FIELD )
             symbol->SetFootprint( m_text );
     }
+    else if( parent && parent->Type() == SCH_GLOBAL_LABEL_T )
+    {
+        if( fieldType == 0 )
+        {
+            if( m_visible->GetValue() != parent->Schematic()->Settings().m_IntersheetRefsShow )
+            {
+                DisplayInfoMessage( this, _( "Intersheet reference visibility is "
+                                             "controlled globally from "
+                                             "Schematic Setup > General > Formatting" ) );
+            }
+        }
+    }
 
     bool positioningModified = false;
 

eeschema/dialogs/dialog_label_properties.cpp

@@ -450,11 +450,24 @@ bool DIALOG_LABEL_PROPERTIES::TransferDataFromWindow()
         field.Offset( m_currentLabel->GetPosition() );
 
         if( field.GetCanonicalName() == wxT( "Netclass" ) )
+        {
             field.SetLayer( LAYER_NETCLASS_REFS );
+        }
         else if( field.GetCanonicalName() == wxT( "Intersheetrefs" ) )
+        {
+            if( field.IsVisible() != m_Parent->Schematic().Settings().m_IntersheetRefsShow )
+            {
+                DisplayInfoMessage( this, _( "Intersheet reference visibility is "
+                                             "controlled globally from "
+                                             "Schematic Setup > General > Formatting" ) );
+            }
+
             field.SetLayer( LAYER_INTERSHEET_REFS );
+        }
         else
+        {
             field.SetLayer( LAYER_FIELDS );
+        }
     }
 
     if( positioningChanged( m_fields, m_currentLabel->GetFields() ) )

eeschema/files-io.cpp

@@ -485,7 +485,7 @@ bool SCH_EDIT_FRAME::OpenProjectFiles( const std::vector<wxString>& aFileSet, in
     initScreenZoom();
     SetSheetNumberAndCount();
 
-    RecomputeIntersheetRefs();
+    RecomputeIntersheetRefs( true );
     GetCurrentSheet().UpdateAllScreenReferences();
 
     // re-create junctions if needed. Eeschema optimizes wires by merging

eeschema/sch_edit_frame.cpp

@@ -1533,7 +1533,7 @@ void SCH_EDIT_FRAME::RecalculateConnections( SCH_CLEANUP_FLAGS aCleanupFlags )
 }
 
 
-void SCH_EDIT_FRAME::RecomputeIntersheetRefs()
+void SCH_EDIT_FRAME::RecomputeIntersheetRefs( bool autoplaceUninitialized )
 {
     std::map<wxString, std::set<int>>& pageRefsMap = Schematic().GetPageRefsMap();
 
@@ -1579,10 +1579,15 @@ void SCH_EDIT_FRAME::RecomputeIntersheetRefs()
 
     for( SCH_GLOBALLABEL* globalLabel : globalLabels )
     {
-        globalLabel->GetFields()[0].SetVisible( show );
+        std::vector<SCH_FIELD>& fields = globalLabel->GetFields();
+
+        fields[0].SetVisible( show );
 
         if( show )
         {
+            if( fields.size() == 1 && fields[0].GetTextPos() == globalLabel->GetPosition() )
+                globalLabel->AutoplaceFields( GetScreen(), false );
+
             GetScreen()->Update( globalLabel );
             GetCanvas()->GetView()->Update( globalLabel );
         }
@@ -1593,7 +1598,7 @@ void SCH_EDIT_FRAME::RecomputeIntersheetRefs()
 void SCH_EDIT_FRAME::ShowAllIntersheetRefs( bool aShow )
 {
     if( aShow )
-        RecomputeIntersheetRefs();
+        RecomputeIntersheetRefs( true );
 
     GetCanvas()->GetView()->SetLayerVisible( LAYER_INTERSHEET_REFS, aShow );
 }

eeschema/sch_edit_frame.h

@@ -804,7 +804,7 @@ public:
      * Update the schematic's page reference map for all global labels, and refresh the labels
      * so that they are redrawn with up-to-date references.
      */
-    void RecomputeIntersheetRefs();
+    void RecomputeIntersheetRefs( bool autoplaceUninitialized = false );
 
     void ShowAllIntersheetRefs( bool aShow );
 

eeschema/sch_label.cpp

@@ -1233,7 +1233,7 @@ SCH_GLOBALLABEL::SCH_GLOBALLABEL( const VECTOR2I& pos, const wxString& text ) :
 
     m_fields.emplace_back( SCH_FIELD( pos, 0, this, _( "Sheet References" ) ) );
     m_fields[0].SetText( wxT( "${INTERSHEET_REFS}" ) );
-    m_fields[0].SetVisible( true );
+    m_fields[0].SetVisible( false );
     m_fields[0].SetLayer( LAYER_INTERSHEET_REFS );
     m_fields[0].SetVertJustify( GR_TEXT_V_ALIGN_CENTER );
 }