Schematic Sheet Variables: more SCH_SHEET_PATH plumbing

Fixes: https://gitlab.com/kicad/code/kicad/-/issues/14239

eeschema/sch_sheet.cpp

@@ -234,7 +234,7 @@ void SCH_SHEET::GetContextualTextVars( wxArrayString* aVars ) const
 }
 
 
-bool SCH_SHEET::ResolveTextVar( wxString* token, int aDepth ) const
+bool SCH_SHEET::ResolveTextVar( const SCH_SHEET_PATH* aPath, wxString* token, int aDepth ) const
 {
     if( !Schematic() )
         return false;
@@ -291,13 +291,13 @@ bool SCH_SHEET::ResolveTextVar( wxString* token, int aDepth ) const
 
     // See if parent can resolve it (these will recurse to ancestors)
 
-    SCH_SHEET_PATH sheetPath = findSelf();
+    SCH_SHEET_PATH sheetPath = aPath ? *aPath : findSelf();
 
     if( sheetPath.size() >= 2 )
     {
         sheetPath.pop_back();
 
-        if( sheetPath.Last()->ResolveTextVar( token, aDepth + 1 ) )
+        if( sheetPath.Last()->ResolveTextVar( aPath, token, aDepth + 1 ) )
             return true;
     }
     else

eeschema/sch_sheet.h

@@ -153,7 +153,11 @@ public:
      *
      * @param aDepth is a counter to limit recursion and circular references.
      */
-    bool ResolveTextVar( wxString* token, int aDepth = 0 ) const;
+    bool ResolveTextVar( const SCH_SHEET_PATH* aPath, wxString* token, int aDepth = 0 ) const;
+    bool ResolveTextVar( wxString* token, int aDepth = 0 )
+    {
+        return ResolveTextVar( nullptr, token, aDepth );
+    }
 
     void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
 

eeschema/sch_symbol.cpp

@@ -1313,7 +1313,7 @@ bool SCH_SYMBOL::ResolveTextVar( wxString* token, int aDepth, const SCH_SHEET_PA
 
     if( sheet )
     {
-        if( sheet->ResolveTextVar( token, aDepth + 1 ) )
+        if( sheet->ResolveTextVar( aPath, token, aDepth + 1 ) )
             return true;
     }
 

eeschema/sch_text.cpp

@@ -353,7 +353,7 @@ wxString SCH_TEXT::GetShownText( const SCH_SHEET_PATH* aPath, int aDepth, bool a
             {
                 if( sheet )
                 {
-                    if( sheet->ResolveTextVar( token, aDepth + 1 ) )
+                    if( sheet->ResolveTextVar( aPath, token, aDepth + 1 ) )
                         return true;
                 }