AttributeText

Closing CopyTextFromTarget CopyTextIntoTarget Copying Freeze Notice Opening ReplaceTextData Thaw Validate

Attributes

DataStore DataStore Target Target TargetAttribute TextOwner

Fields

instance AttributeText tag;
      textOwner: nilObject;
           text: nilObject;
dontObserveOffscreen: false;
dontObserveOnscreen: false;
  dontSetTarget: false;
 zeroValueBlank: false;
   setAttribute: false;
cacheMayBeWrong: false;
        useName: false;
      observing: false;
          dirty: false;
       refCount: 0;
         target: nilObject;
targetAttribute: nilOperation;
end instance;

Define Class AttributeText;
    inherits from Object, TextContainer;
    inherits interface from EditsTarget;

    field textOwner             : Object, weak, getter;
    field text                  : Text;
    field dontObserveOffscreen  : Boolean;
    field dontObserveOnscreen   : Boolean;
    field dontSetTarget         : Boolean; 
        // don't allow SetTarget to do its will
    field zeroValueBlank        : Boolean; 
        // unused
    field setAttribute          : Boolean;
    field cacheMayBeWrong       : Boolean;
    field useName               : Boolean;
    field observing             : Boolean;
    field dirty                 : Boolean;
    field refCount              : UnsignedShort;
    field target                : Object, weak;
    field targetAttribute       : OperationNumber, getter, setter;

    overrides Target;
        // to make sure that if the target is an indexical, it gets the
        // right version of the indexical for the current actor (this is important
        // for faxing)
    overrides SetTarget;
    attribute TargetAttribute: OperationNumber, safe;

    operation CopyTextFromTarget(): Text, safe;
        // may return nilObject instead of an empty text object
    operation CopyTextIntoTarget(newText: HasText), safe;
    attribute TextOwner: Object, readOnly;

    // hooks for when the text comes on-screen
    overrides Opening, Closing;

    overrides ReplaceTextData;
    overrides DataStore, SetDataStore;
    overrides Notice;
    overrides Freeze, Thaw;
    overrides Copying;
        // clears observing flag

#ifdef VALIDATE
    overrides Validate;
        // checks copyAttributeMask setting
#endif
end class;