UserInterface Class
Warning
The scope of applications for UnigineScript is limited to implementing materials-related logic (material expressions, scriptable materials, brush materials). Do not use UnigineScript as a language for application logic, please consider C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScript (beyond its scope of applications) is not guaranteed, as the current level of support assumes only fixing critical issues.
The class is used to work with widgets that are created by loading a UI file.
Usage Examples#
The examples below show:
- Loading a UserInterface from the *.ui file and accessing the widgets it stores.
- Adding callbacks to these widgets.
- Managing the UserInterface lifetime.
Managing Lifetime by the World#
The UserInterface is created on loading the world. When you reload or exit the world, or close the Engine window, the UserInterface is deleted.
Managing Lifetime by the Window#
The UserInterface is created in a separate window. When you close the window, the UserInterface is deleted as its lifetime is managed by this window. The console shows whether the window and UserInterface are deleted or not, whether the remove callback is fired, and the message from the remove callback (if it is).
After closing, the window can be re-created by pressing T.
Managing Lifetime by the Engine#
The lifetime of the UserInterface is managed by the Engine, so it is deleted on Engine shutdown. A Gui instance is set manually via the setGui() method.
The console shows whether the window and UserInterface are deleted or not, whether the remove callback is fired, and the message from the remove callback (if it is). After closing, the window can be re-created by pressing T.
See Also#
- C++ API sample <UnigineSDK>/source/samples/Api/Widgets/UserInterface
- C# API sample <UnigineSDK>/source/csharp/samples/Api/Widgets/UserInterface
UserInterface Class
Members
int getCallback ( int num, int callback ) #
Returns the number of a given callback function.Arguments
- int num - Widget number.
- int callback
Return value
Callback number.string getCallbackInstanceData ( int num ) #
Returns the callback instance data.Arguments
- int num - Widget number.
Return value
Instance data.string getCallbackName ( int num ) #
Returns the name of a given callback function.Arguments
- int num - Widget number.
Return value
Callback function name.string getCallbackStringData ( int num ) #
Returns the callback string data.Arguments
- int num - Widget number.
Return value
Callback string data (i.e. string data specified in the string parameter of the callback).string getCallbackVariableData ( int num ) #
Returns the callback variable data.Arguments
- int num - Widget number.
Return value
Callback variable data (i.e. string data specified in the variable parameter of the callback).Widget getCallbackWidgetData ( int num ) #
Returns the callback widget data.Arguments
- int num - Widget number.
Return value
Widget data (i.e. reference to a widget specified in the widget parameter of the callback).int getNumCallbacks ( int num ) #
Returns the total number of callbacks for a given widget.Arguments
- int num - Widget number.
Return value
Number of callbacks.int getNumWidgets ( ) #
Returns number of associated widgets.Return value
Number of associated widgets.Widget getWidget ( int num ) #
Returns reference to widget with the given ID.Arguments
- int num - Widget ID.
Return value
Reference to widget with the given ID.int getWidgetExport ( int num ) #
Returns a value indicating if a given widget is exported into a script (has export="1" flag in UI file).Arguments
- int num - Widget ID.
Return value
1 if the widget is exported; otherwise, 0.string getWidgetName ( int num ) #
Returns widget name by ID.Arguments
- int num - Widget ID.
Return value
Widget name.string getWidgetNext ( int num ) #
Returns the name of the widget, which will be focused next.Arguments
- int num - Widget number.
Return value
Widget name.int findWidget ( string name ) #
Searches a widget by its name.Arguments
- string name - Widget name.
Return value
Returns the number of the widget if exists; otherwise, -1.void updateWidgets ( ) #
Updates all widgets belonging to the user interface. This function should be called, for example, after change of the interface language.void setGui ( Gui gui ) #
Sets a new Gui instance to be used for the UserInterface.Arguments
Gui getGui ( ) #
Returns a Gui instance for the UserInterface.Return value
Gui instance currently used for the UserInterface.void setLifetime ( int lifetime ) #
Sets the lifetime management type for the UserInterface. By default, the LIFETIME_ENGINE type is used.Arguments
- int lifetime
int getLifetime ( ) #
Returns the lifetime management type for the root of the UserInterface, or for the UserInterface itself (if it is not a child for another UserInterface).Notice
Lifetime of each UserInterface in the hierarchy is defined by it's root. Thus, lifetime management type set for a child UserInterface that differs from the one set for the root is ignored.
Last update:
2022-12-14
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