public static int Popup(GUIContent label, int selectedIndex, GUIContent[] displayedOptions, GUIStyle style,
IntChangeHandler change, IntFailureHandler failure = null, IntValidationHandler validate = null,
params GUILayoutOption[] options)
{
EditorGUI.BeginChangeCheck();
selectedIndex = EditorGUILayout.Popup(label, selectedIndex, displayedOptions, style, options);
if (EditorGUI.EndChangeCheck())
{
IntApplyChangeHandlers(selectedIndex, change, failure, validate);
}
return(selectedIndex);
}
private static void IntApplyChangeHandlers(int value, IntChangeHandler change, IntFailureHandler failure, IntValidationHandler validate)
{
bool validated = (validate == null) ? true : validate(value);
if (validated)
{
change(value);
}
else if (!validated && failure != null)
{
failure();
}
}
