public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
EditorGUI.BeginProperty(position, label, property);
TypeDropdownAttribute typeAttribute = attribute as TypeDropdownAttribute;
Type baseType = typeAttribute.BaseType;
string[] allTypes = Reflect.AllTypeStringsFrom(baseType).ToArray();
if (allTypes.Length <= 0)
{
EditorGUI.Popup(position, label.text, 0, new string[] { "No types of " + baseType.Name + " found" });
}
else
{
Array.Sort(allTypes);
SerializedProperty stringProperty = null;
if (property.propertyType == SerializedPropertyType.String)
{
stringProperty = property;
}
if (stringProperty != null)
{
string currentType = stringProperty.stringValue;
int selected = string.IsNullOrEmpty(stringProperty.stringValue) ? 0 : Array.IndexOf(allTypes, currentType);
int newSelection = EditorGUI.Popup(position, label.text, selected, allTypes);
stringProperty.stringValue = allTypes[Mathf.Max(0, newSelection)];
}
else
{
GUI.Label(position, "The TypeDropDownAttribute only works on strings.");
}
}
EditorGUI.EndProperty();
}
