@Override
public void refreshMark() {
final EditorArea edit = getEditor();
go.setEnabled(edit.script || edit.xquery && !gui.gprop.is(GUIProp.EXECRT));
final Nodes mrk = gui.context.marked;
filter.setEnabled(!gui.gprop.is(GUIProp.FILTERRT) && mrk != null && mrk.size() != 0);
}
/**
* Notifies all views of a selection change.
*
* @param mark marked nodes
* @param vw the calling view
*/
public void mark(final Nodes mark, final View vw) {
final Context ctx = gui.context;
ctx.marked = mark;
for (final View v : view) if (v != vw && v.visible()) v.refreshMark();
gui.filter.setEnabled(mark.size() != 0);
gui.refreshControls();
}