_preset_choice->Bind (wxEVT_CHOICE, boost::bind (&ContentColourConversionDialog::preset_choice_changed, this));
_editor_connection = _editor->Changed.connect (boost::bind (&ContentColourConversionDialog::check_for_preset, this));
_preset_choice->Bind (wxEVT_CHOICE, boost::bind (&ContentColourConversionDialog::preset_choice_changed, this));
_editor_connection = _editor->Changed.connect (boost::bind (&ContentColourConversionDialog::check_for_preset, this));