Make use of polymorphism for locking/unlocking.

Fixes https://gitlab.com/kicad/code/kicad/issues/6350

pcbnew/dialogs/dialog_track_via_properties.cpp

@@ -433,7 +433,7 @@ bool DIALOG_TRACK_VIA_PROPERTIES::TransferDataFromWindow()
     bool changeLock = m_lockedCbox->Get3StateValue() != wxCHK_UNDETERMINED;
     bool setLock = m_lockedCbox->Get3StateValue() == wxCHK_CHECKED;
 
-    for( auto item : m_items )
+    for( EDA_ITEM* item : m_items )
     {
         m_commit.Modify( item );
 

pcbnew/kicad_clipboard.cpp

@@ -215,14 +215,9 @@ void CLIPBOARD_IO::SaveSelection( const PCBNEW_SELECTION& aSelected, bool isModE
                 copy = static_cast<BOARD_ITEM*>( item->Clone() );
             }
 
-            auto prepItem = [&]( BOARD_ITEM* titem )
+            auto prepItem = [&]( BOARD_ITEM* aItem )
                             {
-                                // locked means "locked in place"; copied items therefore can't
-                                // be locked
-                                if( MODULE* footprint = dyn_cast<MODULE*>( titem ) )
-                                    footprint->SetLocked( false );
-                                else if( TRACK* track = dyn_cast<TRACK*>( titem ) )
-                                    track->SetLocked( false );
+                                aItem->SetLocked( false );
                             };
 
             if( copy )

pcbnew/pcb_edit_frame.cpp

@@ -1601,29 +1601,6 @@ void PCB_EDIT_FRAME::ProjectChanged()
 }
 
 
-void PCB_EDIT_FRAME::LockModule( MODULE* aModule, bool aLocked )
-{
-    const wxString ModulesMaskSelection = wxT( "*" );
-    if( aModule )
-    {
-        aModule->SetLocked( aLocked );
-        SetMsgPanel( aModule );
-        OnModify();
-    }
-    else
-    {
-        for( auto mod : GetBoard()->Modules() )
-        {
-            if( WildCompareString( ModulesMaskSelection, mod->GetReference() ) )
-            {
-                mod->SetLocked( aLocked );
-                OnModify();
-            }
-        }
-    }
-}
-
-
 bool ExportBoardToHyperlynx( BOARD* aBoard, const wxFileName& aPath );
 
 

pcbnew/pcb_edit_frame.h

@@ -850,8 +850,6 @@ public:
     void ScriptingConsoleEnableDisable();
 #endif
 
-    void LockModule( MODULE* aModule, bool aLocked );
-
     /**
      * Function SendMessageToEESCHEMA
      * sends a message to the schematic editor so that it may move its cursor