AbstractListSection (Vellum)

tonic@vellum:~$ Source Portfolio tonicbox.dev

java.lang.Object
- com.tonic.vellum.Section
- - com.tonic.vellum.widget.AbstractListSection

Direct Known Subclasses:

MenuSection, RadioGroup, SelectList, Table, TreeView
```
public abstract class AbstractListSection
extends Section
```
Base for vertical, scrollable, single-selection lists; subclasses supply the row count and row drawing.

Constructor Summary

Constructors
Constructor Description

AbstractListSection()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`AbstractListSection`	`onHighlight(java.util.function.IntConsumer handler)`	Sets the handler called with the row index whenever the selection moves.
`AbstractListSection`	`onSelect(java.util.function.IntConsumer handler)`	Sets the handler called with the row index on ENTER.
`void`	`select(int index)`	Moves the selection to the given index (clamped to the valid range); fires `onHighlight` when it changes.
`int`	`selectedIndex()`

Methods inherited from class com.tonic.vellum.Section
bordered, bordered, bounds, isFocused, parent, requestRedraw

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractListSection
```
public AbstractListSection()
```
- Method Detail
  - selectedIndex
```
public int selectedIndex()
```
    Returns:
    
    the selected row index
  - select
```
public void select(int index)
```
    Moves the selection to the given index (clamped to the valid range); fires onHighlight when it changes.
    
    Parameters:
    
    index - the requested selection index
  - onSelect
```
public AbstractListSection onSelect(java.util.function.IntConsumer handler)
```
    Sets the handler called with the row index on ENTER.
    
    Parameters:
    
    handler - the activation handler
    
    Returns:
    
    this AbstractListSection for chaining
  - onHighlight
```
public AbstractListSection onHighlight(java.util.function.IntConsumer handler)
```
    Sets the handler called with the row index whenever the selection moves.
    
    Parameters:
    
    handler - the highlight handler
    
    Returns:
    
    this AbstractListSection for chaining