Fix keep-upright algo for footprint text.

Also removes PCB_FIELDs from rotation centre calc in
footprint editor if there is other stuff selected.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/16896

(cherry picked from commit 25bb3f77fa)

pcbnew/footprint.cpp

@@ -1982,12 +1982,12 @@ void FOOTPRINT::Rotate( const VECTOR2I& aRotCentre, const EDA_ANGLE& aAngle )
     SetOrientation( newOrientation );
 
     for( PCB_FIELD* field : m_fields )
-        field->KeepUpright( newOrientation );
+        field->KeepUpright();
 
     for( BOARD_ITEM* item : m_drawings )
     {
         if( item->Type() == PCB_TEXT_T )
-            static_cast<PCB_TEXT*>( item )->KeepUpright( newOrientation );
+            static_cast<PCB_TEXT*>( item )->KeepUpright();
     }
 
     m_boundingBoxCacheTimeStamp = 0;

pcbnew/pcb_text.cpp

@@ -263,12 +263,12 @@ void PCB_TEXT::StyleFromSettings( const BOARD_DESIGN_SETTINGS& settings )
 }
 
 
-void PCB_TEXT::KeepUpright( const EDA_ANGLE& aNewOrientation )
+void PCB_TEXT::KeepUpright()
 {
     if( !IsKeepUpright() )
         return;
 
-    EDA_ANGLE newAngle = GetTextAngle() + aNewOrientation;
+    EDA_ANGLE newAngle = GetTextAngle();
     newAngle.Normalize();
 
     bool needsFlipped = newAngle >= ANGLE_180;
@@ -276,6 +276,7 @@ void PCB_TEXT::KeepUpright( const EDA_ANGLE& aNewOrientation )
     if( needsFlipped )
     {
         SetHorizJustify( static_cast<GR_TEXT_H_ALIGN_T>( -GetHorizJustify() ) );
+        SetVertJustify( static_cast<GR_TEXT_V_ALIGN_T>( -GetVertJustify() ) );
         SetTextAngle( GetTextAngle() + ANGLE_180 );
     }
 }

pcbnew/pcb_text.h

@@ -70,7 +70,7 @@ public:
     /**
      * Called when rotating the parent footprint.
      */
-    void KeepUpright( const EDA_ANGLE& aNewOrientation );
+    void KeepUpright();
 
     wxString GetShownText( bool aAllowExtraText, int aDepth = 0 ) const override;
 

pcbnew/tools/edit_tool.cpp

@@ -2697,7 +2697,24 @@ bool EDIT_TOOL::updateModificationPoint( PCB_SELECTION& aSelection )
     else
     {
         PCB_GRID_HELPER grid( m_toolMgr, frame()->GetMagneticItemsSettings() );
-        aSelection.SetReferencePoint( grid.BestSnapAnchor( aSelection.GetCenter(), nullptr ) );
+        VECTOR2I        refPt = aSelection.GetCenter();
+
+        // Exclude text in the footprint editor if there's anything else selected
+        if( m_isFootprintEditor )
+        {
+            BOX2I nonFieldsBBox;
+
+            for( EDA_ITEM* item : aSelection.Items() )
+            {
+                if( !item->IsType( { PCB_TEXT_T, PCB_FIELD_T } )  )
+                    nonFieldsBBox.Merge( item->GetBoundingBox() );
+            }
+
+            if( nonFieldsBBox.IsValid() )
+                refPt = nonFieldsBBox.GetCenter();
+        }
+
+        aSelection.SetReferencePoint( grid.BestSnapAnchor( refPt, nullptr ) );
     }
 
     return true;