Developing a DSL Graphical Notation - Eclipse Modeling Project: A Domain-Specific Language Toolkit - page 168

private void createContents() {
Ellipse circle0 = new Ellipse(){
@Override
protected void outlineShape(Graphics graphics) {
super .outlineShape(graphics);
Rectangle inner = Rectangle.SINGLETON;
inner.width = getBounds().width - 5;
inner.height = getBounds().height - 5;
inner.x = getBounds().x + 2;
inner.y = getBounds().y + 2;
graphics.drawOval(inner);

}

};
this .add(circle0);

}

Figure 4-36 shows an example of our Scenario diagram to this point.

Figure 4-36 Scenario diagram

4.5.5 Generating the Figures Plug-In

We must generate a standalone figures plug-in for use in our diagram. As men-
tioned earlier, this is the preferred way to develop GMF diagrams, but it comes
at the expense of a slightly complicated workflow. Begin by right-clicking on the
bpmn.gmfgraph model and select Generate Figures Plug-In . Specify the name
org.eclipse.bpmn.figures for the plug-in name and select the Use
IMapMode and Utilize Enhanced Features of GMF Runtime options before
clicking Finish , as seen in Figure 4-37.