Prevent crash if board doesn't have any layers in the layer preset.

pcbnew/files.cpp

@@ -28,30 +28,23 @@
 #include <kicad_string.h>
 #include <gestfich.h>
 #include <pcb_edit_frame.h>
-#include <macros.h>
 #include <3d_viewer/eda_3d_viewer.h>
-#include <richio.h>
 #include <pgm_base.h>
 #include <msgpanel.h>
 #include <fp_lib_table.h>
 #include <kiface_i.h>
-#include <kiway.h>
-#include <kiway_player.h>
 #include <trace_helpers.h>
 #include <lockfile.cpp>
 #include <netlist_reader/pcb_netlist.h>
-#include <pcbnew.h>
 #include <pcbnew_id.h>
 #include <io_mgr.h>
 #include <wildcards_and_files_ext.h>
 #include <tool/tool_manager.h>
-#include <drc/drc.h>
 #include <class_board.h>
 #include <wx/stdpaths.h>
-#include <pcb_layer_widget.h>
 #include <ratsnest/ratsnest_data.h>
 #include <kiplatform/app.h>
-
+#include <widgets/appearance_controls.h>
 #include <wx/wupdlock.h>
 #include <settings/common_settings.h>
 #include <settings/settings_manager.h>
@@ -313,6 +306,8 @@ bool PCB_EDIT_FRAME::Files_io_from_id( int id )
         // Don't set name until the user hits save, so project files are not created
         mgr->LoadProject( "" );
 
+        m_appearancePanel->OnBoardChanged();
+
         LoadProjectSettings();
 
         if( !Clear_Pcb( false ) )
@@ -650,6 +645,8 @@ bool PCB_EDIT_FRAME::OpenProjectFiles( const std::vector<wxString>& aFileSet, in
     GetBoard()->BuildConnectivity();
     Compile_Ratsnest( true );
 
+    m_appearancePanel->OnBoardChanged();
+
     // Load project settings after setting up board; some of them depend on the nets list
     LoadProjectSettings();
 

pcbnew/pcb_edit_frame.cpp

@@ -996,7 +996,6 @@ void PCB_EDIT_FRAME::onBoardLoaded()
     }
 
     ReCreateLayerBox();
-    m_appearancePanel->OnBoardChanged();
 
     // Sync layer and item visibility
     GetCanvas()->SyncLayersVisibility( m_Pcb );

pcbnew/pcbnew_config.cpp

@@ -25,13 +25,7 @@
  */
 
 #include <fctsys.h>
-#include <kiface_i.h>
-#include <confirm.h>
-#include <gestfich.h>
-#include <macros.h>
 #include <pcb_edit_frame.h>
-#include <board_design_settings.h>
-#include <plotter.h>
 #include <panel_hotkeys_editor.h>
 #include <panel_edit_options.h>
 #include <panel_pcbnew_color_settings.h>
@@ -39,15 +33,10 @@
 #include <panel_pcbnew_action_plugins.h>
 #include <tool/tool_manager.h>
 #include <tools/selection_tool.h>
-#include <fp_lib_table.h>
 #include <ws_data_model.h>
-#include <class_board.h>
-#include <class_module.h>
 #include <pcbplot.h>
 #include <pcb_painter.h>
-#include <footprint_viewer_frame.h>
 #include <invoke_pcb_dialog.h>
-#include <wildcards_and_files_ext.h>
 #include <widgets/appearance_controls.h>
 #include <widgets/paged_dialog.h>
 #include <widgets/panel_selection_filter.h>