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Using Label Figure as decorator [message #1816884]

Sun, 10 November 2019 10:59

Felix Dorner

Messages: 392
Registered: December 2015

Senior Member

Hi,

I want to return a Label figure as the result of a decorator expression:

public IFigure decoratorExpression(EObject context) {
final Label label = new Label("5");
label.setFont(JFaceResources.getDefaultFont());
return label;
}

but there seems to be something that I'm missing, since the label isn't drawn.

Anyone done this before?
Thanks,
Felix

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Re: Using Label Figure as decorator [message #1816918 is a reply to message #1816884]

Tue, 12 November 2019 08:11

Laurent Fasani

Messages: 182
Registered: October 2014

Senior Member

Hello

Difficult to know what is going just with your message but I can give some leads to understand better.

Your expression that creates the figure is called in org.eclipse.sirius.diagram.ui.tools.internal.decoration.DescribedDecorationDescriptorProvider.initializeDecorationDescriptor(Decoration, DDiagramElement, UIState, DRepresentation, Session)
and then used org.eclipse.sirius.diagram.ui.tools.internal.decoration.SiriusGenericDecorator.getDecorationFigure(DecorationDescriptor, boolean)

As a first step you could check that it is good at this point.

Best regards
Laurent

Laurent Fasani - Obeo
Need training or professional services for Sirius?
http://www.obeodesigner.com/sirius

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Re: Using Label Figure as decorator [message #1817120 is a reply to message #1816918]

Fri, 15 November 2019 16:45

Felix Dorner

Messages: 392
Registered: December 2015

Senior Member

It works if I set the figure's bounds beforehand:

 this.label = new Label(getLabelText(element));
 label.setTextAlignment(Label.RIGHT);
 label.setFont(JFaceResources.getDefaultFont());
 Rectangle bounds = label.getTextBounds();
 label.setBounds(bounds);
 return label;

Now I have a new problem: The decoration expression is not re-evaluated when the semantic element changes, neither when I click the 'refresh' button to manually refresh the diagram.

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