UE3:UTUIOptionButton (UT3)

Object >> UIRoot >> UIScreenObject >> UIObject >> UTUI_Widget >> UTUIOptionButton

Package: 

UTGame

Implemented interfaces: 

UIDataStorePublisher

This class in other games:

UDK

Copyright 1998-2007 Epic Games, Inc. All Rights Reserved.

Option widget that works similar to a read only combobox.

Constants

UIKEY_MoveCursorLeft

Value: 'UIKEY_MoveCursorLeft'

UI Key Action Events

UIKEY_MoveCursorRight

Value: 'UIKEY_MoveCursorRight'

Properties

Property group 'Data'

DataSource

Type: UIRoot.UIDataStoreBinding

The data store that this list is bound to

Default value:

Member	Value
RequiredFieldType	DATATYPE_Collection

StringRenderComponent

Type: UIComp_DrawString

Modifiers: editinline, const, noclear

Renders the text displayed by this label

Default value: UIComp_DrawString'LabelStringRenderer'

Property group 'Image'

BackgroundImageComponent

Type: UIComp_DrawImage

Modifiers: editinline, const, noclear

Component for rendering the button background image

Default value: UIComp_DrawImage'BackgroundImageTemplate'

Property group 'Presentation'

ButtonSpacing

Type: UIRoot.UIScreenValue

Spacing between buttons and text.

Default value:

Member	Value
ScaleType	EVALPOS_PixelOwner

Property group 'Sound'

DecrementCue

Type: name

this sound is played when the index is decremented

Default value: 'SliderDecrement'

IncrementCue

Type: name

this sound is played when the index is incremented

Default value: 'SliderIncrement'

Property group 'UTUIOptionButton'

bCustomPlacement

Type: bool

If true, this widget won't attempt to align it's children

bWrapOptions

Type: bool

Whether we should wrap the options or not, meaning if the user hits the beginning or the end of the list, they will wrap to the other end of the list.

Default value: True

Internal variables

ArrowLeftButton

Type: UIButton

Modifiers: instanced

Left and right arrow buttons for this widget.

Default value: UIButton'UTGame.Default__UTUIOptionButton:LeftArrowButtonTemplate'

ArrowRightButton

Type: UIButton

Modifiers: instanced

Default value: UIButton'UTGame.Default__UTUIOptionButton:RightArrowButtonTemplate'

CurrentIndex

Type: int

Modifiers: transient

Profile settings current index.

DataProvider

Type: UIListElementProvider

Modifiers: const, transient

the list element provider referenced by DataSource

DecrementStyle

Type: UIRoot.UIStyleReference

Modifiers: private

Default value:

Member	Value
DefaultStyleTag	'DefaultOptionButtonLeftArrowStyle'
RequiredStyleClass	Class'Engine.UIStyle_Image'

IncrementStyle

Type: UIRoot.UIStyleReference

Modifiers: private

The styles used for the increment, decrement and marker buttons

Default value:

Member	Value
DefaultStyleTag	'DefaultOptionButtonRightArrowStyle'
RequiredStyleClass	Class'Engine.UIStyle_Image'

Default values

Property	Value
DefaultStates[2]	Class'Engine.UIState_Focused'
DefaultStates[3]	Class'Engine.UIState_Active'
DefaultStates[4]	Class'Engine.UIState_Pressed'
Position	Member Value ScaleType[2] EVALPOS_PixelOwner ScaleType[3] EVALPOS_PixelOwner Value[2] 256.0 Value[3] 32.0

Subobjects

BackgroundImageTemplate

Class: Engine.UIComp_DrawImage

Property	Value
ImageStyle	Member Value DefaultStyleTag 'OptionButtonBackground'
StyleResolverTag	'Background Image Style'

LabelStringRenderer

Class: Engine.UIComp_DrawString

Property	Value
StringStyle	Member Value DefaultStyleTag 'DefaultOptionButtonStyle'
StyleResolverTag	'Caption Style'

LeftArrowButtonTemplate

Class: Engine.UIButton

Property	Value
Position	Member Value Value[0] 0.603122 Value[1] 0.125 Value[2] 0.209372 Value[3] 0.750006
PrivateFlags	2087
TabIndex	0
WidgetTag	'butArrowLeft'

RightArrowButtonTemplate

Class: Engine.UIButton

Property	Value
Position	Member Value Value[0] 0.790628 Value[1] 0.125 Value[2] 0.209372 Value[3] 0.75
PrivateFlags	2087
TabIndex	1
WidgetTag	'butArrowRight'

WidgetEventComponent

Class: Engine.UIComp_Event

Inherits from: UTUI_Widget.WidgetEventComponent

No new values.

Enums

EOptionButtonArrow

Arrow enums.

OPTBUT_ArrowLeft 

OPTBUT_ArrowRight 

Functions

Native functions

ClearBoundDataStores

native final virtual function ClearBoundDataStores ()

Specified by: UIDataStoreSubscriber.ClearBoundDataStores

Notifies this subscriber to unbind itself from all bound data stores

GetBoundDataStores

native final virtual function GetBoundDataStores (out array<UIDataStore> out_BoundDataStores)

Specified by: UIDataStoreSubscriber.GetBoundDataStores

Retrieves the list of data stores bound by this subscriber.

Parameters:

• out_BoundDataStores - receives the array of data stores that subscriber is bound to.

GetCurrentIndex

native function int GetCurrentIndex ()

Returns:

Returns the current index of the optionbutton.

GetDataStoreBinding

native final virtual function string GetDataStoreBinding (optional int BindingIndex) const

Specified by: UIDataStoreSubscriber.GetDataStoreBinding

Retrieves the markup string corresponding to the data store that this object is bound to.

Parameters:

• BindingIndex - optional parameter for indicating which data store binding is being requested for those objects which have multiple data store bindings. How this parameter is used is up to the class which implements this interface, but typically the "primary" data store will be index 0.

Returns:

a datastore markup string which resolves to the datastore field that this object is bound to, in the format: <DataStoreTag:DataFieldTag>

HasNextValue

native function bool HasNextValue ()

Returns:

TRUE if the CurrentIndex is at the start of the ValueMappings array, FALSE otherwise.

HasPrevValue

native function bool HasPrevValue ()

Returns:

TRUE if the CurrentIndex is at the start of the ValueMappings array, FALSE otherwise.

NotifyDataStoreValueUpdated

native function NotifyDataStoreValueUpdated (UIDataStore SourceDataStore, bool bValuesInvalidated, name PropertyTag, UIDataProvider SourceProvider, int ArrayIndex)

Specified by: UIDataStoreSubscriber.NotifyDataStoreValueUpdated

Handler for the UIDataStore.OnDataStoreValueUpdated delegate. Used by data stores to indicate that some data provided by the data has changed. Subscribers should use this function to refresh any data store values being displayed with the updated value. notify subscribers when they should refresh their values from this data store.

Parameters:

• SourceDataStore - the data store that generated the refresh notification; useful for subscribers with multiple data store bindings, to tell which data store sent the notification.
• PropertyTag - the tag associated with the data field that was updated; Subscribers can use this tag to determine whether there is any need to refresh their data values.
• SourceProvider - for data stores which contain nested providers, the provider that contains the data which changed.
• ArrayIndex - for collection fields, indicates which element was changed. value of INDEX_NONE indicates not an array or that the entire array was updated.

RefreshSubscriberValue

native final virtual function bool RefreshSubscriberValue (optional int BindingIndex)

Specified by: UIDataStoreSubscriber.RefreshSubscriberValue

Resolves this subscriber's data store binding and updates the subscriber with the current value from the data store.

Returns:

TRUE if this subscriber successfully resolved and applied the updated value.

SaveSubscriberValue

native virtual function bool SaveSubscriberValue (out array<UIDataStore> out_BoundDataStores, optional int BindingIndex)

Specified by: UIDataStorePublisher.SaveSubscriberValue

Resolves this subscriber's data store binding and publishes this subscriber's value to the appropriate data store.

Parameters:

• out_BoundDataStores - contains the array of data stores that widgets have saved values to. Each widget that implements this method should add its resolved data store to this array after data values have been published. Once SaveSubscriberValue has been called on all widgets in a scene, OnCommit will be called on all data stores in this array.
• BindingIndex - optional parameter for indicating which data store binding is being requested for those objects which have multiple data store bindings. How this parameter is used is up to the class which implements this interface, but typically the "primary" data store will be index 0.

Returns:

TRUE if the value was successfully published to the data store.

SetCurrentIndex

native function SetCurrentIndex (int NewIndex)

Sets a new index for the option button.

Parameters:

• NewIndex - New index for the option button.

SetDataStoreBinding

native final virtual function SetDataStoreBinding (string MarkupText, optional int BindingIndex)

Specified by: UIDataStoreSubscriber.SetDataStoreBinding

Sets the data store binding for this object to the text specified.

Parameters:

• MarkupText - a markup string which resolves to data exposed by a data store. The expected format is: <DataStoreTag:DataFieldTag>
• BindingIndex - optional parameter for indicating which data store binding is being requested for those objects which have multiple data store bindings. How this parameter is used is up to the class which implements this interface, but typically the "primary" data store will be index 0.

SetNextValue

native function SetNextValue ()

Moves the current index forward by 1 in the valuemappings array if it isn't already at the end of the array.

SetPrevValue

native function SetPrevValue ()

Moves the current index back by 1 in the valuemappings array if it isn't already at the front of the array.

Events

Initialized

event Initialized ()

Overrides: UIScreenObject.Initialized

Called once this screen object has been completely initialized, before it has called Initialize on its children.

OnMoveSelectionLeft

event OnMoveSelectionLeft (int PlayerIndex)

Moves the current selection to the left.

OnMoveSelectionRight

event OnMoveSelectionRight (int PlayerIndex)

Moves the current selection to the right.

PostInitialize

event PostInitialize ()

Overrides: UIScreenObject.PostInitialize

Called after the widget is done initializing.

Other instance functions

OnArrowLeft_Clicked

function bool OnArrowLeft_Clicked (UIScreenObject InButton, int PlayerIndex)

Arrow left clicked callback.

OnArrowRight_Clicked

function bool OnArrowRight_Clicked (UIScreenObject InButton, int PlayerIndex)

Arrow right clicked callback.

VerifyArrowButtons

function VerifyArrowButtons ()