/// <summary>
/// Updates the current attribute and compared property references.
/// </summary>
/// <param name="property">The SerializedProperty to make the custom GUI for.</param>
/// <remarks>
/// TODO: Move this code somewhere else as it applies to many attributes.
/// </remarks>
private void UpdateDrawerReferences(SerializedProperty property)
{
_disableIf = (DisableIfAttribute)attribute;
string path = property.propertyPath.Contains(".") ? System.IO.Path.ChangeExtension(property.propertyPath, _disableIf.ComparedPropertyName) : _disableIf.ComparedPropertyName;
_comparedProperty = property.serializedObject.FindProperty(path);
}
public override void DrawProperty(SerializedProperty property)
{
bool drawDisabled = false;
bool validCondition = false;
DisableIfAttribute disableIfAttribute = PropertyUtility.GetAttribute <DisableIfAttribute>(property);
UnityEngine.Object target = PropertyUtility.GetTargetObject(property);
FieldInfo conditionField = ReflectionUtility.GetField(target, disableIfAttribute.ConditionName);
if (conditionField != null &&
conditionField.FieldType == typeof(bool))
{
drawDisabled = (bool)conditionField.GetValue(target);
validCondition = true;
}
MethodInfo conditionMethod = ReflectionUtility.GetMethod(target, disableIfAttribute.ConditionName);
if (conditionMethod != null &&
conditionMethod.ReturnType == typeof(bool) &&
conditionMethod.GetParameters().Length == 0)
{
drawDisabled = (bool)conditionMethod.Invoke(target, null);
validCondition = true;
}
if (validCondition)
{
GUI.enabled = !drawDisabled;
EditorDrawUtility.DrawPropertyField(property);
GUI.enabled = true;
}
else
{
string warning = disableIfAttribute.GetType().Name + " needs a valid boolean condition field or method name to work";
EditorGUILayout.HelpBox(warning, MessageType.Warning);
Debug.LogWarning(warning, target);
}
}