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# NSScrubberLayoutAttributes

The layout of a scrubber item.

```
class NSScrubberLayoutAttributes
```

## Overview

A layout attributes object is the model for the layout of a single item in a scrubber control.

If you require model attributes in addition to those provided by this class, create a subclass and add appropriate attributes. Subclasses must implement <doc://com.apple.documentation/documentation/ObjectiveC/NSObjectProtocol/isEqual(_:)>, <doc://com.apple.documentation/documentation/ObjectiveC/NSObjectProtocol/hash> and the <doc://com.apple.documentation/documentation/Foundation/NSCopying> protocol.

## Topics

### Creating layout attributes

[`init(forItemAt:)`](/documentation/AppKit/NSScrubberLayoutAttributes/init(forItemAt:))

Creates a new layout attributes object for the specified scrubber item index.

### Controlling the layout

[`alpha`](/documentation/AppKit/NSScrubberLayoutAttributes/alpha)

The item’s alpha value.

[`frame`](/documentation/AppKit/NSScrubberLayoutAttributes/frame)

The frame of the scrubber item.

[`itemIndex`](/documentation/AppKit/NSScrubberLayoutAttributes/itemIndex)

The index of the scrubber item that is represented by the item’s layout attributes.


---

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