+ pv::widgets::DecoderGroupBox *const group =
+ new pv::widgets::DecoderGroupBox(decoder->name);
+
+ _delete_mapper.setMapping(group, index);
+ connect(group, SIGNAL(delete_decoder()), &_delete_mapper, SLOT(map()));
+
+ QFormLayout *const decoder_form = new QFormLayout;
+ group->add_layout(decoder_form);