public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
label.tooltip = EditorHelper.GetTooltipFromAttribute(
fieldInfo,
defaultValue: label.tooltip
);
if (property.hasMultipleDifferentValues)
{
position = EditorGUIHelper.StandardLabel(position, label);
position = EditorGUIHelper.CompensateIndentLevel(position);
EditorGUIHelper.SinglePopup(position, "Multi-Object Editing Not Supported");
return;
}
if (!fieldInfo.FieldType.IsEnum)
{
EditorGUI.PropertyField(
position,
property,
label,
includeChildren: true
);
return;
}
// If a single value, property uses EnumValueIndex
int enumIndex = property.enumValueIndex;
Enum enumVal;
if (enumIndex != -1)
{
Array values = Enum.GetValues(fieldInfo.FieldType);
enumVal = (Enum)values.GetValue(enumIndex);
}
else
{
int intVal = property.intValue;
enumVal = (Enum)Enum.ToObject(fieldInfo.FieldType, intVal);
}
enumVal = EditorGUI.EnumMaskField(position, label, enumVal);
int newIntVal = Convert.ToInt32(enumVal);
// Check if a PoT (which would mean a single value)
// https://stackoverflow.com/questions/1662144/testing-a-flags-enum-value-for-a-single-value
bool isSingleValue = newIntVal != 0 && (newIntVal & (newIntVal - 1)) == 0;
if (isSingleValue)
{
Array values = Enum.GetValues(fieldInfo.FieldType);
property.enumValueIndex = Array.IndexOf(values, enumVal);
}
else
{
property.intValue = newIntVal;
}
}
