private static Texture GetEditorIcon(ref Texture variable, string iconName)
{
if (variable == null)
{
variable = AssetDatabaseUtils.LoadEditorIconRelativeToScript(iconName, typeof(AutoPopulateDrawer));
}
return(variable);
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
// Using BeginProperty / EndProperty on the parent property means that
// prefab override logic works on the entire property.
EditorGUI.BeginProperty(position, label, property);
// use some special tricks to get the underlying object
EditorOnlyObjectReference referenceObject = fieldInfo.GetValue(property.serializedObject.targetObject) as EditorOnlyObjectReference;
Object loadedObject = null;
Type referencedObjectType = typeof(Object);
if (referenceObject != null)
{
loadedObject = referenceObject.Get();
referencedObjectType = referenceObject.GetReferencedType();
}
// add in our link broken icon to show this is some sort of magical property
if (m_CachedIcon == null)
{
m_CachedIcon = AssetDatabaseUtils.LoadEditorIconRelativeToScript("EditorOnlyReferenceIcon.png", typeof(EditorOnlyReferenceDrawer), "");
}
GUIContent propertyLableWithIcon = new GUIContent(label.text, m_CachedIcon);
// use a typed object field to show the objects actual value
Object newObject = EditorGUI.ObjectField(position, propertyLableWithIcon, loadedObject, referencedObjectType, false);
if (newObject != loadedObject)
{
if (referenceObject != null)
{
referenceObject.Set(newObject);
}
EditorUtility.SetDirty(property.serializedObject.targetObject);
}
EditorGUI.EndProperty();
}