canGroupSelection method

bool canGroupSelection()

This predicate controls whether or not the user can invoke the #groupSelection command.

This method may be overridden, but you should consider calling this base method in order to get all of its functionality. This method must not have any side-effects. Please read the Introduction page on Extensions for how to override methods and how to call this base method. @expose @return {boolean} This returns true: if the #archetypeGroupData is not null, if the diagram is not Diagram#isReadOnly, if Diagram#allowInsert is true, if Diagram#allowGroup is true, if Diagram#model is a GraphLinksModel, and if there is any selected Part that can be Part#canGrouped. @see #groupSelection

Implementation

_i2.bool canGroupSelection() => _i4.callMethod(
      this,
      'canGroupSelection',
      [],
    );