Spinner.ItemRenderer

All Superinterfaces:

ConstrainedVisual, Renderer, Visual

All Known Implementing Classes:

SpinnerItemRenderer, TerraCalendarSkin.MonthSpinnerItemRenderer

Enclosing class:

Spinner
```
public static interface Spinner.ItemRenderer
extends Renderer
```
Renderer interface to customize the appearance of the data in a Spinner.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`render(java.lang.Object item, Spinner spinner)`	Prepares the renderer for layout or paint.
`java.lang.String`	`toString(java.lang.Object item)`	Converts a spinner item to a string representation.

Methods inherited from interface org.apache.pivot.wtk.ConstrainedVisual
getBaseline, getPreferredHeight, getPreferredSize, getPreferredWidth, setSize, setSize

Methods inherited from interface org.apache.pivot.wtk.Renderer
getStyles

Methods inherited from interface org.apache.pivot.wtk.Visual
getBaseline, getHeight, getSize, getWidth, paint

- Method Detail
  - render
```
void render(java.lang.Object item,
            Spinner spinner)
```
    Prepares the renderer for layout or paint.
    
    Parameters:
    
    item - The item to render, or null if called to calculate preferred height for skins that assume a fixed renderer height.
    
    spinner - The host component.
  - toString
```
java.lang.String toString(java.lang.Object item)
```
    Converts a spinner item to a string representation.
    
    Parameters:
    
    item - The item from the spinner's data.
    
    Returns:
    
    The item's string representation, or null if the item does not have a string representation.
    Note that this method may be called often during keyboard navigation, so implementations should avoid unnecessary string allocations.