Button.DataRenderer

All Superinterfaces:

ConstrainedVisual, Renderer, Visual

All Known Implementing Classes:

AccordionHeaderDataRenderer, ButtonDataRenderer, CalendarButtonDataRenderer, LinkButtonDataRenderer, ListButtonColorItemRenderer, ListButtonDataRenderer, MenuBarItemDataRenderer, MenuButtonDataRenderer, MenuItemDataRenderer, TerraFileBrowserSkin.ListButtonDriveRenderer, TerraFileBrowserSkin.ListButtonFileRenderer, TerraVFSBrowserSkin.ListButtonDriveRenderer, TerraVFSBrowserSkin.ListButtonFileRenderer, VerticalButtonDataRenderer

Enclosing class:

Button
```
public static interface Button.DataRenderer
extends Renderer
```
Renderer interface to customize the appearance of data in a Button.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`render(java.lang.Object data, Button button, boolean highlighted)`	Prepares the renderer for layout or paint.
`java.lang.String`	`toString(java.lang.Object data)`	Converts button data 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 data,
            Button button,
            boolean highlighted)
```
    Prepares the renderer for layout or paint.
    
    Parameters:
    
    data - The data to render, or null if called to calculate preferred height for skins that assume a fixed renderer height.
    
    button - The host component.
    
    highlighted - If true, the item is highlighted.
  - toString
```
java.lang.String toString(java.lang.Object data)
```
    Converts button data to a string representation.
    
    Parameters:
    
    data - The button's data.
    
    Returns:
    
    The data's string representation, or null if the data does not have a string representation.
    Note that this method may be called often during keyboard navigation, so implementations should avoid unnecessary string allocations.