class:: EZLists
summary:: An abstract superclass for EZListView and EZPopUpMenu
categories:: GUI>EZ-GUI
related:: Classes/EZListView, Classes/EZPopUpMenu

description::
Users will not normally directly create instances of EZLists, but only use it through its subclasses. It provides the basic mechanisms for link::Classes/EZListView:: and link::Classes/EZPopUpMenu::.

classmethods::

method:: new

instancemethods::

subsection:: Building and Changing the List

method:: globalAction
Set/get the global function to be performed in addition to the item functions: code:: { arg listObj; value } ::.

method:: items
Set/get an link::Classes/Array:: of Associations including the labels and the item functions: code:: ['label' -> { arg listObj; value }, ] ::.
discussion::
In menus, the macOS graphics system gives special meanings to some characters. See link::Classes/PopUpMenu:: ; Or and link::Classes/Array:: link::Classes/Symbol::s (if you are only using code::globalAction::). link::Classes/Array::s of link::Classes/Symbol::s will get converted into and array of link::Classes/Association::s with and empty link::Classes/Function:: code:: ['label' -> {}, ] ::.

method:: item
Returns:: the item label of the current selection.

method:: itemFunc
Returns:: the item function of the current selection.

method:: addItem
Adds an item.
argument:: name
An instance of link::Classes/String:: or link::Classes/Symbol::. The name of the list/menu item.
argument:: action
An instance of link::Classes/Function::.

method:: insertItem
Inserts a list/menu item at index position.
argument:: index
An link::Classes/Integer::. The index where to insert an item.
argument:: name
An instance of link::Classes/String:: or link::Classes/Symbol::. The name of the list/menu item.
argument:: action
An instance of link::Classes/Function::.

method:: replaceItemAt
Replace a list/menu item at index position.
argument:: index
An link::Classes/Integer::. The index where to insert an item.
argument:: name
An instance of link::Classes/String:: or link::Classes/Symbol::. The name of the list/menu item. Default is the current item label.
argument:: action
An instance of link::Classes/Function::. Default is the current item action.

method:: removeItemAt
Removes a list/menu item at index position.
argument:: index
An link::Classes/Integer::. The index where to remove an item.

method:: remove
Removes both the view, label and the list/menu from the parent view.

subsection:: Accessing Values

method:: value
Gets/sets the list/menu to the index at value. Does not perform the action.
argument:: val
An link::Classes/Integer::.

method:: valueAction
Sets the value and performs the action at the index value and the global action.
argument:: val
An link::Classes/Integer::.

method:: doAction
Performs the action at the current index and the global action.

method:: initViews
Called by init and overridden by all subclasses. This is where the class specific views are built.
