AttributeStamp

CanApplyAttributeStamp CanPlaceOnLockedCard DroppedFromWindow FindMatchingAttributeStamp Pressed RemoveConflicts TargetFromContainer

Attributes

TargetAttribute TargetClass

Fields

Define Class AttributeStamp;
    abstract;
    inherits from Stamp;

    field targetAttribute:  OperationNumber, getter, setter;
        // which attribute number to affect
    field targetClass:      ClassNumber, getter, setter;
        // class number to which this stamp can be applied
    field applyMode:        Unsigned;
        // what object to affect (0,1,2,3 = none, superview, card, scene)
    
    operation CanApplyAttributeStamp(object: Viewable): Boolean;
        // returns true if object implements <targetClass>
    operation FindMatchingAttributeStamp(whereToLook: Card; useValue: Boolean): Object, noMethod;
        // search all subviews of whereToLook for an attribute stamp that matches self
        // compare targetAttribute and applyMode, compare comingValue if useValue is true

    overrides CanPlaceOnLockedCard;
        // returns true if target attribute is operation_DontPurge; otherwise returns false
    overrides DroppedFromWindow;
        // if self conflicts with another attribute stamp, displays window to make user choose which one to keep
    overrides Pressed;
        // if self conflicts with another attribute stamp, displays window to make user choose which one to keep
    operation RemoveConflicts(), noMethod;
        // call to hop to trash attribute stamps that conflict with this one
    attribute TargetAttribute: OperationNumber;
    attribute TargetClass: ClassNumber;
    
    operation TargetFromContainer(container: Object): Object;
end class;