
This class provides a scrolled list of groups of options that may be toggled on or off as a group or individually.


Constructor.
| Argument | Type | Default | Description |
| p | FXComposite | Parent widget. | |
| nvis | Int | Number of visible items of list. | |
| opts | Int | 0 | Options and hints. |
| x | Int | 0 | X coordinate of origin. |
| y | Int | 0 | Y coordinate of origin. |
| w | Int | 0 | Width of the widget. |
| h | Int | 0 | Height of the widget. |
| pl | Int | DEFAULT_SPACING | Left padding. |
| pr | Int | DEFAULT_SPACING | Right padding. |
| pt | Int | DEFAULT_SPACING | Top padding. |
| pb | Int | DEFAULT_SPACING | Bottom padding. |
| hs | Int | DEFAULT_SPACING | Horizontal spacing. |
| vs | Int | DEFAULT_SPACING | Vertical spacing. |

Adds a new item with the given text as the first item of the list.
| Argument | Type | Default | Description |
| text | String | Item text. | |
| tgt | FXObject | None | Item target. |
| msg | Int | 0 | Item selector. |

Adds a new item with the given text as the last item of the list.
| Argument | Type | Default | Description |
| text | String | Item text. | |
| tgt | FXObject | None | Item target. |
| msg | Int | 0 | Item selector. |

Computes the item size to be used as a base for default height computation.
| Argument | Type | Default | Description |
| p | AFXOptionTreeItem | None | Item. |

Creates a new tree item object.
| Argument | Type | Default | Description |
| text | String | Item text. | |
| tgt | FXObject | Item target. | |
| msg | Int | Item selector. |

Moves contents to the specified position.
| Argument | Type | Default | Description |
| x | Int | X location. | |
| y | Int | Y location |

Removes the given item from the list. This method does nothing if the given item does not exist.
| Argument | Type | Default | Description |
| item | AFXOptionTreeItem | Item to be removed. |

Sets the horizontal inter-child spacing.
| Argument | Type | Default | Description |
| hs | Int | Horizontal spacing. |

Sets the number of visible items.
| Argument | Type | Default | Description |
| nvis | Int | Number of visible items. |

Sets the bottom padding.
| Argument | Type | Default | Description |
| pb | Int | Bottom padding. |