inherits from Stamp;
Magic Cap defines a special class of stamps, called attribute stamps, that affect the objects on which they appear. Attribute stamps work by applying a given attribute to their card, scene, or superview.
Instantiate: sometimes Subclass: rarely Call its methods: never
Magic Cap provides several kinds of attribute stamps, including the confidential, urgent, and save stamps. You can create your own attribute stamps. You might create a subclass of AttributeStamp if you wanted to specialize its behavior. For example, Magic Cap defines delivery report stamps as a subclass of AttributeStamp.
Class AttributeStamp defines the following methods:
| Method | Description |
|---|---|
CanPlaceOnLockedCard |
Overridden to allow save stamp on locked cards. |
| ChangedContainers | Overridden to set target attribute of old and new container. |
| DroppedFromWindow | Overridden to display window if attribute stamps conflict. |
| Pressed | Overridden to display window if attribute stamps conflict. |
| RemoveConflicts | Makes conflicting attribute stamps hop to trash. |
| TargetAttribute | Returns this stamp's target attribute. |
| SetTargetAttribute | Sets this stamp's target attribute. |
Class AttributeStamp defines the following fields:
| Field | Type | Description | |
|---|---|---|---|
| Inherited from SingleLinkable | |||
| next | Object | Next item in view list | |
| Inherited from Linkable | |||
| previous | Object | Previous item in view list | |
| Inherited from Viewable | |||
| superview | Viewable | Container for this object | |
| subview | Viewable | Object contained by this object | |
| relativeOrigin | Dot | Origin relative to superview | |
| contentSize | Dot | Size of content rectangle | |
| viewFlags | Flags | Property settings | |
| labelStyle | TextStyle | Text style of object's label | |
| color | Color | Color of object's content | |
| shadow | Shadow | Shadow drawn with object | |
| sound | Sound | Sound associated with object | |
| Inherited from Stamp | |||
| image | Image | ||
| Defined by AttributeStamp | |||
| targetAttribute | OperationNumber | Attribute associated with this stamp | |
| applyMode | Unsigned | Object that will be affected: 0 = none, | 1 = superview, 2 = card, 3 = scene |
| comingValue | Unsigned | Value to set when stamp is placed | |
| goingValue | Unsigned | Value to set when stamp is removed |
overrides CanPlaceOnLockedCard Call: rarely Override: sometimes
Class AttributeStamp overrides CanPlaceOnLockedCard to return true if the target attribute is operation_DontPurge and false otherwise. This allows the save stamp to be placed on locked cards, such as telecards that have been sent.
overrides ChangedContainers Call: rarely Override: sometimes
Class AttributeStamp overrides ChangedContainers to set the target attribute of the new container to field comingValue and the target attribute of the old container to field goingValue.
overrides DroppedFromWindow Call: rarely Override: sometimes
Class AttributeStamp overrides DroppedFromWindow to check whether this stamp conflicts with another attribute stamp. If so, Magic Cap puts up a window asking the user which one to keep.
overrides Pressed Call: rarely Override: sometimes
Class AttributeStamp overrides Pressed to check whether this stamp conflicts with another attribute stamp. If so, Magic Cap puts up a window asking the user which one to keep.
operation RemoveConflicts() Call: rarely Override: rarely
If two attribute stamps conflict and the user chooses one to keep, Magic Cap calls RemoveConflicts to discard the other stamp by hopping it to the trash.
attribute TargetAttribute: OperationNumber // operation TargetAttribute():OperationNumber // operation SetTargetAttribute(newValue) Call: rarely Override: rarely
The attribute TargetAttribute refers to the attribute that will be set by this attribute stamp.