public object Edit(Rect region, GUIContent label, object element, fiGraphMetadata metadata)
{
// draw the nullable type toggle
{
int labelHeight = (int)EditorStyles.label.CalcHeight(GUIContent.none, 100);
Rect toggleRegion = new Rect(region);
toggleRegion.height = labelHeight;
region.y += toggleRegion.height;
region.height -= toggleRegion.height;
if (EditorGUI.Toggle(toggleRegion, label, element != null))
{
if (element == null)
{
element = _elementType.CreateInstance();
GUI.changed = true;
}
}
else
{
element = null;
}
}
// no element; no editor
if (element == null)
{
return(null);
}
// we have a value for the nullable type; draw the property editor
{
Rect selectedRegion = new Rect(region);
selectedRegion = fiRectUtility.IndentedRect(selectedRegion);
region.y += selectedRegion.height;
region.height -= selectedRegion.height;
// show custom editor
PropertyEditorChain chain = PropertyEditor.Get(element.GetType(), null);
IPropertyEditor editor = chain.SkipUntilNot(typeof(NullablePropertyEditor));
return(editor.Edit(selectedRegion, GUIContent.none, element, metadata.Enter("NullableEditor", metadata.Context)));
}
}
public object Edit(Rect region, GUIContent label, object element, fiGraphMetadata metadata)
{
try {
if (_cycleEdit == null)
{
_cycleEdit = new fiCycleDetector(_cycleHeight, _cycleScene);
}
_cycleEdit.Enter();
if (_cycleEdit.TryMark(element) == false)
{
EditorGUI.LabelField(region, label, new GUIContent("<cycle>"));
return(element);
}
if (HasLabel(label))
{
region = DrawLabel(region, label);
}
if (element == null)
{
// if the user want's an instance, we'll create one right away We also check to
// make sure we should automatically instantiate references, as if we're pretty
// far down in the nesting level there may be an infinite recursion going on
if (fiSettings.InspectorAutomaticReferenceInstantation &&
_metadata.HasDefaultConstructor &&
ShouldAutoInstantiate())
{
element = _metadata.CreateInstance();
GUI.changed = true;
}
// otherwise we show a button to create an instance
else
{
string buttonMessage = "null - create instance (ctor)?";
if (_metadata.HasDefaultConstructor == false)
{
buttonMessage = "null - create instance (unformatted)?";
}
if (fiEditorGUI.LabeledButton(region, _metadata.ReflectedType.Name, buttonMessage))
{
element = _metadata.CreateInstance();
GUI.changed = true;
}
return(element);
}
}
return(EditPropertiesButtons(label, region, element, metadata));
}
finally {
_cycleEdit.Exit();
if (_cycleEdit.Depth == 0)
{
_cycleEdit = null;
}
}
}
