Do not include text when computing drag origin for a group

Fixes https://gitlab.com/kicad/code/kicad/-/issues/9630

common/tool/selection.cpp

@@ -139,3 +139,24 @@ bool SELECTION::AreAllItemsIdentical() const
                         return r->Type() == m_items.front()->Type();
                     } ) );
 }
+
+
+bool SELECTION::OnlyContains( std::vector<KICAD_T> aList ) const
+{
+    return ( std::all_of( m_items.begin(), m_items.end(),
+            [&]( const EDA_ITEM* r )
+            {
+                bool ok = false;
+
+                for( const KICAD_T& type : aList )
+                {
+                    if( r->Type() == type )
+                    {
+                        ok = true;
+                        break;
+                    }
+                }
+
+                return ok;
+            } ) );
+}

eeschema/tools/ee_grid_helper.cpp

@@ -60,13 +60,19 @@ EE_GRID_HELPER::EE_GRID_HELPER( TOOL_MANAGER* aToolMgr ) :
 }
 
 
-VECTOR2I EE_GRID_HELPER::BestDragOrigin( const VECTOR2I &aMousePos, int aLayer,
+VECTOR2I EE_GRID_HELPER::BestDragOrigin( const VECTOR2I& aMousePos, int aLayer,
                                          const EE_SELECTION& aItems )
 {
     clearAnchors();
 
+    // Text anchors are often off the connectivity grid.  For now, this means
+    // we can only consider anchors from text objects if they are the only thing
+    // selected.
+    bool includeText = ( aItems.Size() == 1
+                         || aItems.OnlyContains( { SCH_TEXT_T, SCH_FIELD_T } ) );
+
     for( EDA_ITEM* item : aItems )
-        computeAnchors( static_cast<SCH_ITEM*>( item ), aMousePos, true );
+        computeAnchors( static_cast<SCH_ITEM*>( item ), aMousePos, true, includeText );
 
     double worldScale = m_toolMgr->GetView()->GetGAL()->GetWorldScale();
     double lineSnapMinCornerDistance = 50.0 / worldScale;
@@ -262,14 +268,19 @@ std::set<SCH_ITEM*> EE_GRID_HELPER::queryVisible( const BOX2I& aArea,
 }
 
 
-void EE_GRID_HELPER::computeAnchors( SCH_ITEM *aItem, const VECTOR2I &aRefPos, bool aFrom )
+void EE_GRID_HELPER::computeAnchors( SCH_ITEM *aItem, const VECTOR2I &aRefPos, bool aFrom,
+                                     bool aIncludeText )
 {
     switch( aItem->Type() )
     {
     case SCH_TEXT_T:
     case SCH_FIELD_T:
+    {
+        if( aIncludeText )
             addAnchor( aItem->GetPosition(), ORIGIN, aItem );
+
         break;
+    }
 
     case SCH_SYMBOL_T:
     case SCH_SHEET_T:

eeschema/tools/ee_grid_helper.h

@@ -74,8 +74,10 @@ private:
      * @param aItem The schematic item for which to compute the anchors
      * @param aRefPos The point for which to compute the anchors (if used by the symbol)
      * @param aFrom Is this for an anchor that is designating a source point (aFrom=true) or not
+     * @param aIncludeText if true will compute anchors for text items
      */
-    void computeAnchors( SCH_ITEM* aItem, const VECTOR2I& aRefPos, bool aFrom = false );
+    void computeAnchors( SCH_ITEM* aItem, const VECTOR2I& aRefPos, bool aFrom = false,
+                         bool aIncludeText = false );
 };
 
 #endif

include/tool/selection.h

@@ -201,6 +201,12 @@ public:
      */
     bool AreAllItemsIdentical() const;
 
+    /**
+     * Checks if all items in the selection have a type in aList
+     * @return False if any item in the selection has a type not included in aList
+     */
+    bool OnlyContains( std::vector<KICAD_T> aList ) const;
+
 protected:
     OPT<VECTOR2I>         m_referencePoint;
     std::deque<EDA_ITEM*> m_items;