LuaAPI/types/widget: Difference between revisions

Revision as of 21:30, 27 September 2020

the 'widget' userdata offers access to a widget of a gui2 dialog, while there is only one type of widget userdata that covers all widgets including the window itself, The properties of a widget userdataq are different for each widgets. Indexing a widgets userdata can either be used to

Access a child widget

Example code ``` function preshow(dialog)

 local okay_button = dialog.okay_button
 -- okay_button is now a handle to the the widgets child with the id 'okay_button'

end ``` or to

Set/Get a property of a widget Some Properties are read-only, the propertied depends on the type of the widget, the following properties exist:

widget attributes

selected

w.selected = value
boolean
get/set
[toggle_button], [toggle_panel]

whether the item is selected or not

selected_index

w.selected_index = value
number
get/set
[listbox], [multi_page], [stacked_widget], selectable_item ([menu_button], [toggle_button], [toggle_panel])

the selected index of the item

text

w.text = value
string
get/set
[text_box]

the text of the textbox

value

w.value = value
number
get/set
[slider]

percentage

w.percentage = value
number
get/set
[progress_bar]

selected_item_path

value = w.selected_item_path
array of integers
get
[slider]

a table descibing the currently selected node. If for example in this treeview

+Section1
 +Subsection11
  *Item1
  *Item2
  *Item3
 +Subsection12
  *Item4
  *Item5
  *Item6
+Section2
 +Subsection21
  *Item7
  *Item8
  *Item9
 +Subsection22
  *Item10
  *Item11
  *Item12

Item 9 is selected the value will be {2,1,3}

path

value = w.path
array of integers
get
[tree_view_node]

See selected_item_path for the syntax.

unfolded

w.unfolded = value
boolean
set
[tree_view_node]

unit

w.unit = value
unit or unit type
set
[unit_preview_pane]

item_count

value = w.item_count
number
get
[multi_page], [listbox]

use_markup

w.use_markup = value
boolean
set
most widgets, in particular [label], [button]

label

w.label = value
string
set
most widgets, in particular [label], [button], [image]

the label, technically the is a special string used in the widgets wml definition, it usualyl does what one would expect but also sets the image for [image] widgets

marked_up_text

w.marked_up_text = value
string
set
most widgets, in particular [label], [button]

shortcut for setting label and use_markup=yes

enabled

w.enabled = value
boolean
set
all widgets

tooltip

w.tooltip = value
string
set
all widgets

visible

w.visible = value
string
set
all widgets

The following visibility statuses are recognized:

String value	Boolean shorthand	Meaning
visible	true	The widget is visible and handles events.
hidden		The widget is not visible, doesn't handle events, but still takes up space on the dialog grid.
invisible	false	The widget is not visible, doesn't handle events, and does not take up space on the dialog grid.

type

value = w.type
string
get
all widgets

widget callbacks

on_modified

function w.on_modified() .... end
all widgets the allow the user to select a value of any type.

on_left_click

function w.on_left_click() .... end
all widgets

on_button_click

function w.on_button_click() .... end
button type widgets

@@ Line 13: / Line 13: @@
 === widget attributes ===
 ==== selected ====
 * '''w.selected = value'''
 * '''boolean'''
 * '''get/set'''
 * [toggle_button], [toggle_panel]
 whether the item is selected or not
 ==== selected_index ====
 * '''w.selected_index = value'''
 * '''number'''
 * '''get/set'''
 * [listbox], [multi_page], [stacked_widget], selectable_item ([menu_button], [toggle_button], [toggle_panel])
 the selected index of the item
 ==== text ====
 * '''w.text = value'''
 * '''string'''
 * '''get/set'''
 * [text_box]
 the text of the textbox
 ==== value ====
 * '''w.value = value'''
 * '''number'''
 * '''get/set'''
 * [slider]
 ==== percentage ====
 * '''w.percentage = value'''
 * '''number'''
 * '''get/set'''
 * [progress_bar]
 ==== selected_item_path ====
 * '''value = w.selected_item_path'''
 * '''array of integers'''
 * '''get'''
 * [slider]
 a table descibing the currently selected node. If for example in this treeview
   +Section1
@@ Line 87: / Line 66: @@
     *Item12
 Item 9 is selected the value will be {2,1,3}
 ==== path ====
 * '''value = w.path'''
 * '''array of integers'''
 * '''get'''
 * [tree_view_node]
 See selected_item_path for the syntax.
 ==== unfolded ====
 * '''w.unfolded = value'''
 * '''boolean'''
 * '''set'''
 * [tree_view_node]
 ==== unit ====
 * '''w.unit = value'''
 * '''unit''' or '''unit type'''
 * '''set'''
 * [unit_preview_pane]
 ==== item_count ====
 * '''value = w.item_count'''
 * '''number'''
 * '''get'''
 * [multi_page], [listbox]
 ==== use_markup ====
 * '''w.use_markup = value'''
 * '''boolean'''
 * '''set'''
 * most widgets, in particular [label], [button]
 ==== label ====
 * '''w.label = value'''
 * '''string'''
 * '''set'''
 * most widgets, in particular [label], [button], [image]
 the label, technically the is a special string used in the widgets wml definition, it usualyl does what one would expect but also sets the image for [image] widgets
 ==== marked_up_text ====
 * '''w.marked_up_text = value'''
 * '''string'''
 * '''set'''
 * most widgets, in particular [label], [button]
 shortcut for setting label and use_markup=yes
 ==== enabled ====
 * '''w.enabled = value'''
 * '''boolean'''
 * '''set'''
 * all widgets
 ==== tooltip ====
 * '''w.tooltip = value'''
 * '''string'''
 * '''set'''
 * all widgets
 ==== visible ====
 * '''w.visible = value'''
 * '''string'''
 * '''set'''
 * all widgets
 The following visibility statuses are recognized:
 {| clasS="wikitable"
 ! String value !! Boolean shorthand !! Meaning
@@ Line 180: / Line 129: @@
 | invisible || false || The widget is not visible, doesn't handle events, and does not take up space on the dialog grid.
 |}
 ==== type ====
 * '''value = w.type'''
 * '''string'''
 * '''get'''
 * all widgets
 === widget callbacks ===
 ==== on_modified ====
 * '''function w.on_modified() .... end
 * all widgets the allow the user to select a value of any type.
 ==== on_left_click ====
 * '''function w.on_left_click() .... end
 * all widgets
 ==== on_button_click ====
 * '''function w.on_button_click() .... end
 * button type widgets