Fix disappearing origin lines in modedit (and modview).

Fixes: lp:1745701
* https://bugs.launchpad.net/kicad/+bug/1745701

pcbnew/footprint_edit_frame.cpp

@@ -271,6 +271,7 @@ FOOTPRINT_EDIT_FRAME::FOOTPRINT_EDIT_FRAME( KIWAY* aKiway, wxWindow* aParent ) :
     // LoadSettings() *after* creating m_LayersManager, because LoadSettings()
     // initialize parameters in m_LayersManager
     LoadSettings( config() );
+    GetGalDisplayOptions().m_axesEnabled = true;
 
     SetScreen( new PCB_SCREEN( GetPageSettings().GetSizeIU() ) );
     GetScreen()->SetMaxUndoItems( m_UndoRedoCountMax );

pcbnew/footprint_viewer_frame.cpp

@@ -39,6 +39,7 @@
 #include <lib_id.h>
 #include <confirm.h>
 #include <bitmaps.h>
+#include <gal/graphics_abstraction_layer.h>
 
 #include <class_board.h>
 #include <class_module.h>
@@ -177,6 +178,7 @@ FOOTPRINT_VIEWER_FRAME::FOOTPRINT_VIEWER_FRAME( KIWAY* aKiway, wxWindow* aParent
 
     GetScreen()->m_Center = true;      // Center coordinate origins on screen.
     LoadSettings( config() );
+    GetGalDisplayOptions().m_axesEnabled = true;
 
     SetSize( m_FramePos.x, m_FramePos.y, m_FrameSize.x, m_FrameSize.y );
 
@@ -299,6 +301,7 @@ FOOTPRINT_VIEWER_FRAME::FOOTPRINT_VIEWER_FRAME( KIWAY* aKiway, wxWindow* aParent
     Zoom_Automatique( false );
 #endif
 
+    GetGalCanvas()->GetGAL()->SetAxesEnabled( true );
     UseGalCanvas( switchToGalCanvas );
 
     if( !IsModal() )        // For modal mode, calling ShowModal() will show this frame