private bool CanAutoPopulate(SerializedProperty property, AutoPopulateAttribute autoPopulate)
{
if (autoPopulate == null)
{
return(false);
}
if (property.isArray)
{
return(false); // Disable array support for now,
// Unity doesn't call the drawer for the array, it calls it for the elements in the array :(
}
if (property.propertyPath.EndsWith("]"))
{
return(false); // as above, we use the ] char as a sign that Unity is trying to edit an array element
}
if (property.propertyType == SerializedPropertyType.ObjectReference)
{
return(true);
}
if (AutoPopulateUtils.IsInterfaceReference(property, fieldInfo.FieldType))
{
return(true);
}
return(false);
}
private void ForceRepopulate(object data)
{
SerializedProperty property = data as SerializedProperty;
AutoPopulateAttribute autoPopulate = attribute as AutoPopulateAttribute;
if ((property != null) && (autoPopulate != null))
{
property.serializedObject.Update();
AutoPopulateUtils.PopulateValue(fieldInfo.FieldType, property, autoPopulate);
property.serializedObject.ApplyModifiedProperties();
}
}
private string GetTooltip(SerializedProperty property, AutoPopulateAttribute autoPopulate)
{
Type searchType;
if (property.isArray)
{
searchType = AutoPopulateUtils.GetSearchType(fieldInfo.FieldType.GetElementType(), autoPopulate);
}
else
{
searchType = AutoPopulateUtils.GetSearchType(fieldInfo.FieldType, autoPopulate);
}
string relativeTo = "";
if (autoPopulate.FindRelativeTo != null)
{
string componentName = autoPopulate.FindRelativeTo.Name;
string componentArticle;
if (IsVowel(componentName[0]))
{
componentArticle = "an";
}
else
{
componentArticle = "a";
}
relativeTo = string.Format(" on the first parent with {0} {1} component", componentArticle, autoPopulate.FindRelativeTo.Name);
}
switch (autoPopulate.Find)
{
case AutoPopulateAttribute.FindBehaviour.Self:
return(string.Format("Auto-populated by calling gameObject.GetComponent({0}){1}", searchType.Name, relativeTo));
case AutoPopulateAttribute.FindBehaviour.Children:
return(string.Format("Auto-populated by calling gameObject.GetComponentInChildren({0}){1}", searchType.Name, relativeTo));
case AutoPopulateAttribute.FindBehaviour.Parent:
return(string.Format("Auto-populated by calling gameObject.GetComponentInParent({0}){1}", searchType.Name, relativeTo));
default:
throw new ArgumentOutOfRangeException();
}
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
AutoPopulateAttribute autoPopulate = attribute as AutoPopulateAttribute;
if (CanAutoPopulate(property, autoPopulate))
{
bool wasEnabled = GUI.enabled;
GUI.enabled = GetEditable(property, autoPopulate);
bool populated = false;
if (AutoPopulateUtils.NeedsPopulating(property, fieldInfo.FieldType))
{
populated = AutoPopulateUtils.PopulateValue(fieldInfo.FieldType, property, autoPopulate);
}
else
{
populated = true;
}
GUIContent tweakedLabel = new GUIContent(label.text, GetIcon(autoPopulate, populated), GetTooltip(property, autoPopulate));
if (AutoPopulateUtils.IsInterfaceReference(property, fieldInfo.FieldType))
{
InterfaceReferenceDrawer.PropertyField(position, property, fieldInfo, tweakedLabel);
}
else
{
EditorGUI.PropertyField(position, property, tweakedLabel);
}
GUI.enabled = wasEnabled;
HandlePopup(position, property, autoPopulate);
}
else
{
GUIContent tweakedLabel = new GUIContent(label.text, ErrorIcon, GetErrorTooltip());
EditorGUI.PropertyField(position, property, tweakedLabel);
}
}