public static void nullCheckedField(Rect position, SerializedProperty property, GUIContent label, bool showWarning)
{
if (!showWarning)
{
EditorGUI.PropertyField(position, property, label);
return;
}
GUI.backgroundColor = Color.red;
string fillButtonText;
var fillCandidate = FindNonNull.findObjectToFill(property, out fillButtonText);
if (fillCandidate == null)
{
EditorGUI.PropertyField(position, property, label);
GUI.backgroundColor = Color.white;
return;
}
var propertyRect = new Rect {
x = position.x, y = position.y, width = position.width - 45, height = position.height
};
var buttonRect = new Rect {
x = position.x + propertyRect.width + 8, y = position.y, width = 45 - 8, height = position.height
};
EditorGUI.PropertyField(propertyRect, property, label);
GUI.backgroundColor = Color.white;
if (GUI.Button(buttonRect, fillButtonText))
{
property.objectReferenceValue = fillCandidate;
}
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
EditorGUI.BeginProperty(position, label, property);
var showWarning = (
property.propertyType == SerializedPropertyType.ObjectReference &&
property.objectReferenceValue == null &&
FindNonNull.classHasAttributeOfType(property.serializedObject.targetObject.GetType(), typeof(NonNullAttribute))
);
NullFieldGUI.nullCheckedField(position, property, label, showWarning);
EditorGUI.EndProperty();
}
