nelly

digraph G {
rankdir=“BT”;
node [shape=record];

NyWidget [label="<f0> NyWidget|<f1> draw"];
  NyEdit [label="<f0> NyEdit"];
  NyGtkEdit [label="<f0> NyGtkEdit|<f1> realize"];
  NyComponent [label="<f0> NyComponent|<f1> _draw|<f2> realize"];
  Mine [label="<f0> MyComponent|<f1> __draw|<f2> _realize"];

NyEdit:f0 -> NyWidget:f0 [arrowhead=empty];
  NyGtkEdit:f0 -> NyEdit:f0 [arrowhead=empty];
  NyComponent:f0 -> NyWidget:f0 [arrowhead=empty];
  Mine:f0 -> NyComponent:f0 [arrowhead=empty];
  NyComponent:f0 -> NyEdit:f0;

NyGtkEdit:f1 -> NyWidget:f1 [dir=back,color=red];
  NyComponent:f2 -> NyWidget:f1 [dir=back,color=red];  
  NyComponent:f1 -> NyWidget:f1 [dir=back,color=blue];
  Mine:f2 -> NyComponent:f2 [dir=back,color=red];  
  Mine:f1 -> NyComponent:f1 [dir=back,color=blue];
}