Shortening filenames in titlebar

Fixes https://gitlab.com/kicad/code/kicad/-/issues/2096

eeschema/sch_edit_frame.cpp

@@ -1116,7 +1116,7 @@ void SCH_EDIT_FRAME::UpdateTitle()
             append = _( "[no file] " );
 
         title.Printf( wxT( "%s [%s] \u2014 %s %s\u2014 " ) + _( "Eeschema" ),
-                      fn.GetFullName(),
+                      fn.GetName(),
                       GetCurrentSheet().PathHumanReadable(),
                       fn.GetPath(),
                       append );

gerbview/gerbview_frame.cpp

@@ -714,8 +714,10 @@ void GERBVIEW_FRAME::UpdateTitleAndInfo()
     else
     {
         wxString title;
+        wxFileName filename( gerber->m_FileName );
+
         title.Printf( wxT( "%s%s \u2014 " ) + _( "GerbView" ),
-                      gerber->m_FileName,
+                      filename.GetFullName(),
                       gerber->m_IsX2_file ? _( " (with X2 attributes)" )
                                           : wxString( wxEmptyString ) );
         SetTitle( title );

pagelayout_editor/pl_editor_frame.cpp

@@ -529,10 +529,10 @@ void PL_EDITOR_FRAME::SaveSettings( APP_SETTINGS_BASE* aCfg )
 void PL_EDITOR_FRAME::UpdateTitleAndInfo()
 {
     wxString title;
-    wxString file = GetCurrentFileName();
+    wxFileName file( GetCurrentFileName() );
 
     title.Printf( wxT( "%s \u2014 " ) + _( "Page Layout Editor" ),
-                  file.Length() ? file : _( "no file selected" ) );
+                  file.IsOk() ? file.GetName() : _( "no file selected" ) );
     SetTitle( title );
 }
 

pcbnew/pcb_edit_frame.cpp

@@ -1155,7 +1155,7 @@ void PCB_EDIT_FRAME::UpdateTitle()
         fileinfo = _( " [Unsaved]" );
 
     SetTitle( wxString::Format( wxT( "%s%s \u2014 " ) + _( "Pcbnew" ),
-                                fileName.GetFullPath(),
+                                fileName.GetName(),
                                 fileinfo ) );
 }