inherits from Box; inherits from Swallower; inherits from HasDestination;
Magic Cap defines snapshots as reduced images that represent scenes. Users can create snapshots with the snap command in the lamp. Touching a snapshot goes to the scene it represents, and dropping objects on the snapshot asks the scene to accept the object.
Instantiate: rarely Subclass: rarely Call its methods: never
You might inherit from this class if you wanted to create your own custom kind of snapshot.
Class Snapshot defines the following methods:
| Method | Description |
|---|---|
AboutToShow |
Overridden to redraw contents if necessary. |
| Action | Overridden to zoom to destination. |
| AutoMove | Overridden to always return true. |
| CanContain | Overridden to always return false. |
| CanDrawIn | Overridden to always return false. |
| Draw | Overridden to draw image of destination. |
| Swallow | Overridden to swallow unless option key is down or no destination. |
Class Snapshot defines no fields.
overrides AboutToShow Call: rarely Override: sometimes
Class Snapshot overrides AboutToShow to set itself to be redrawn if its destination scene no longer exists.
overrides Action Call: rarely Override: sometimes
Class Snapshot overrides Action to go the snapshot's destination by calling ZoomToDestination when the user touches.
overrides AutoMove Call: rarely Override: sometimes
Class Snapshot overrides AutoMove to always return true, allowing the user to move the snapshot without the move tool.
overrides CanContain Call: rarely Override: sometimes
Class Snapshot overrides CanContain to always return false, preventing the snapshot from accepting subviews.
overrides CanDrawIn Call: rarely Override: sometimes
Class Snapshot overrides CanDrawIn to always return false, preventing the user from drawing in the snapshot with drawing tools.
overrides Draw Call: rarely Override: sometimes
Class Snapshot overrides Draw to draw a reduced image of the snapshot's destination scene as its content.
overrides Swallow Call: rarely Override: sometimes
Class Snapshot overrides Swallow to return false if the option key is down or the snapshot has no destination scene. Otherwise, Swallow calls its inherited implementation.