/// <summary>
/// Creates a special storage locaiton wrapped in a BindingValue, which supports change notification.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="initialValue">The initial value to which the storage location is initialized.</param>
/// <param name="name"></param>
/// <returns></returns>
public static BindingValue <T> Variable <T>(T initialValue, string name = "?")
{
var storage = initialValue;
BindingValue <T> bindingValue = null;
Action <T> setter = v => {
storage = v;
bindingValue.NotifyChange();
};
Func <T> getter = () => storage;
bindingValue = new BindingValue <T>(setter, getter, name);
return(bindingValue);
}
public QuickCheckbox(string name = "QuickCheckbox", Transform parent = null, UIOptionsTag prototype = null)
{
IEDebug.Log("Creating Checkbox : {0}", name);
var chBox = (UIOptionsTag)Object.Instantiate(prototype ?? Prototype);
chBox.transform.parent = parent;
chBox.name = name;
chBox.transform.localScale = new Vector3(1, 1, 1);
chBox.transform.localPosition = new Vector3(0, 0, 0);
GameObject = chBox.gameObject;
GameObject.name = name;
IEDebug.Log("IEMod created: " + chBox.name);
IsChecked = BindingValue.Member(() => this.isChecked).ToBindable();
chBox.Checkbox.onStateChange += (a, b) => {
IsChecked.NotifyChange();
};
}
public QuickDropdown(Transform parent = null, string name = "QuickDropdown", GameObject altPrototype = null)
{
var exampleDropdown = altPrototype ?? Prefabs.QuickDropdown;
if (exampleDropdown == null)
{
throw IEDebug.Exception(null, "You must initialize the ExampleDropdown to create a dropdown.", null);
}
GameObject = (GameObject)Object.Instantiate(exampleDropdown);
GameObject.transform.parent = parent;
GameObject.name = name;
//! You have to explicitly set localPosition and localScale to something after Instantiate!!!
//! Otherwise, the UI will broken, but no exception will be reported.
GameObject.transform.localPosition = Vector3.zero;
GameObject.transform.localScale = Vector3.one;
SelectedValue = BindingValue.Member(() => this.selectedValue).ToBindable();
Options = new List <DropdownChoice <T> >();
DropdownComponent.OnDropdownOptionChangedEvent += x => SelectedValue.NotifyChange();
IEDebug.Log("Created: " + name);
}
/// <summary>
/// Creates a BindingValue from an expression that accesses a property or field.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="expr"></param>
/// <param name="notifier"></param>
/// <returns></returns>
public static BindingValue <T> Member <T>(Expression <Func <T> > expr, INotifyPropertyChanged notifier = null)
{
var accessor = ReflectHelper.AnalyzeMember(expr);
var instance = accessor.InstanceGetter();
var instanceName = ReflectHelper.TryGetName(instance);
notifier = notifier ?? accessor.InstanceGetter() as INotifyPropertyChanged;
var bindingValue = new BindingValue <T>(accessor.Setter, accessor.Getter, $"{instanceName ?? "?"}.{accessor.TopmostMember.Name}");
if (notifier != null)
{
notifier.PropertyChanged += (sender, e) => {
if (e.PropertyName == accessor.TopmostMember.Name)
{
bindingValue.NotifyChange();
}
};
}
return(bindingValue);
}
public static IBindingValue <T> Bind <T>(this Bindable <T> bindable, Expression <Func <T> > memberExpr, BindingMode mode = BindingMode.TwoWay)
{
return(bindable.Bind(BindingValue.Member(memberExpr)));
}
