/// <summary>
/// Create a VisualElement for this editable field's inline editor based on the field data type.
///
/// This returns null if the type could not be resolved to a supported control element.
/// </summary>
public VisualElement GetControlElement(NodeView view)
{
return(ControlElementFactory.CreateControl(Field, view, Name));
}
public static VisualElement CreateControl(FieldInfo fieldInfo, NodeView view, string label = null)
{
// This mess is similar to what Unity is doing for ShaderGraph. It's not great.
// But the automatic alternatives depend on SerializableObject which is a performance bottleneck.
// Ref: https://github.com/Unity-Technologies/ScriptableRenderPipeline/blob/master/com.unity.shadergraph/Editor/Drawing/Controls/DefaultControl.cs
Type type = fieldInfo.FieldType;
// Builtin unity type editors
if (type == typeof(bool))
{
return(BuildVal <Toggle, bool>(view, fieldInfo, label));
}
if (type == typeof(int))
{
return(BuildVal <IntegerField, int>(view, fieldInfo, label));
}
if (type == typeof(float))
{
return(BuildVal <FloatField, float>(view, fieldInfo, label));
}
if (type == typeof(string))
{
return(BuildVal <TextField, string>(view, fieldInfo, label));
}
if (type == typeof(Rect))
{
return(BuildVal <RectField, Rect>(view, fieldInfo, label));
}
if (type == typeof(Color))
{
return(BuildVal <ColorField, Color>(view, fieldInfo, label));
}
if (type == typeof(Vector2))
{
return(BuildVal <Vector2Field, Vector2>(view, fieldInfo, label));
}
if (type == typeof(Vector3))
{
return(BuildVal <Vector3Field, Vector3>(view, fieldInfo, label));
}
if (type == typeof(Vector4))
{
return(BuildVal <Vector4Field, Vector4>(view, fieldInfo, label));
}
if (type == typeof(Gradient))
{
return(BuildVal <GradientField, Gradient>(view, fieldInfo, label));
}
if (type == typeof(AnimationCurve))
{
return(BuildVal <CurveField, AnimationCurve>(view, fieldInfo, label));
}
if (type == typeof(LayerMask))
{
var value = ((LayerMask)fieldInfo.GetValue(view.Target)).value;
var field = new LayerMaskField(label, value);
field.RegisterValueChangedCallback((change) =>
{
fieldInfo.SetValue(view.Target, (LayerMask)change.newValue);
view.Target.Validate();
view.OnPropertyChange();
});
return(field);
}
// Implementation (rather than just using EnumField) comes from:
// https://github.com/Unity-Technologies/UnityCsReference/blob/1e8347ec4cbda9e8a4929e42a20f39df9bbab9d9/Editor/Mono/UIElements/Controls/PropertyField.cs#L306-L323
if (typeof(Enum).IsAssignableFrom(type))
{
var choices = new List <string>(type.GetEnumNames());
var defaultIndex = (int)fieldInfo.GetValue(view.Target);
if (type.IsDefined(typeof(FlagsAttribute), false))
{
var field = new EnumFlagsField(label, (Enum)fieldInfo.GetValue(view.Target));
field.RegisterValueChangedCallback((change) =>
{
fieldInfo.SetValue(view.Target, change.newValue);
view.OnPropertyChange();
});
return(field);
}
else
{
var field = new PopupField <string>(label, choices, defaultIndex);
field.RegisterValueChangedCallback((change) =>
{
fieldInfo.SetValue(view.Target, field.index);
view.OnPropertyChange();
});
return(field);
}
}
// Specialized construct so I can set .objectType on the ObjectField
if (typeof(UnityEngine.Object).IsAssignableFrom(type))
{
var field = BuildRef <ObjectField, UnityEngine.Object>(view, fieldInfo, label) as ObjectField;
if (field != null)
{
field.objectType = type;
}
return(field);
}
// TODO: EnumFlags/Masks (we have MaskField - how do we detect mask types?)
// TODO: Specialized common types. Transform, Rotation, Texture2D, etc.
// TODO: Custom plugin types
return(null);
}
public void AddElement(NodeView node)
{
node.comment = this;
containedNodes.Add(node);
}