Diagram Preferences

Many preferences are available for the diagrams. This page will be completed as arises.

• The list of the diagram preferences key is provided by the class org.eclipse.papyrus.infra.gmfdiag.common.preferences.PreferencesConstantsHelper.
  • This class provides methods to calculate the String key for a given preference, represented by an int according to the context:
    • all diagrams
    • a specific diagram
    • a specific UML element

The preference values are generally stored in the PreferenceStore provided by org.eclipse.papyrus.infra.gmfdiag.common.Activator.

The default value of preferences are generally done by classes extending org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer or by a static method in a PreferencePage, like it is done with org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer

Connection Preference

Connection Bendpoints

• Draw Common Bendpoints:
  • the int value is provided by org.eclipse.papyrus.infra.gmfdiag.common.preferences.PreferencesConstantsHelper.DRAW_CONNECTION_POINT
  • the suffix's key is provided by org.eclipse.papyrus.infra.gmfdiag.common.preferences.PreferencesConstantsHelper.DRAW_CONNECTION_POINT_CONSTANT
  • the default value for this preference is false.
  • the class org.eclipse.papyrus.infra.gmfdiag.common.figure.edge.PapyrusEdgeFigure is in charge to draw the bendpoints through the method drawCommonbendpoints(Graphics), when the preference is set to true, but we need to override the method org.eclipse.papyrus.infra.gmfdiag.common.figure.edge.PapyrusEdgeFigure.getDrawBendpointPreferenceValue() to get this behavior.
  • The subclass org.eclipse.papyrus.uml.diagram.common.figure.edge.CommonEdgeFigure override the previous method to be able to draw the bendpoints according to the preference value.
  • The algorithm used to find the bendpoints to draw is tested by a JUnit test provided by the class org.eclipse.papyrus.uml.diagram.common.tests.tests.CommonBendpointsTest.