fix Bug #578532, document and embellish QuoteFullPath()

common/gestfich.cpp

@@ -685,5 +685,5 @@ void OpenFile( const wxString& file )
 
 wxString QuoteFullPath( wxFileName& fn, wxPathFormat format )
 {
-    return wxT( "\"" ) + fn.GetFullPath() + wxT( "\"" );
+    return wxT( "\"" ) + fn.GetFullPath( format ) + wxT( "\"" );
 }

eeschema/schframe.cpp

@@ -702,8 +702,11 @@ void WinEDA_SchematicFrame::OnOpenPcbnew( wxCommandEvent& event )
 
     if( fn.IsOk() )
     {
-        fn.ClearExt();
-        ExecuteFile( this, PCBNEW_EXE, QuoteFullPath( fn ) );
+        fn.SetExt( BoardFileExtension );
+
+        wxString filename = QuoteFullPath( fn );
+
+        ExecuteFile( this, PCBNEW_EXE, filename );
     }
     else
         ExecuteFile( this, PCBNEW_EXE );

include/gestfich.h

@@ -77,8 +77,10 @@ wxString       FindKicadFile( const wxString& shortname );
  * Quote return value of wxFileName::GetFullPath().
  *
  * This allows file name paths with spaces to be used as parameters to
- * ProcessExecute function calls.  This is a cheap and dirty hack and
- * should probably should be done in a class derived from wxFileName.
+ * ProcessExecute function calls.
+ * @param fn is the filename to wrap
+ * @param format if provided, can be used to transform the nature of the
+ *    wrapped filename to another platform.
  */
 extern wxString QuoteFullPath( wxFileName& fn,
                                wxPathFormat format = wxPATH_NATIVE );