/// <summary> Creates a new instance of the drawer or returns a reusable instance from the pool. </summary>
/// <param name="selectedIndex"> The selected index in items. </param>
/// <param name="items"> The item options to display in the popup menu when the field is clicked. </param>
/// <param name="memberInfo"> LinkedMemberInfo for the field, property or parameter that the drawer represents. Can be null. </param>
/// <param name="parent"> The parent drawer of the created drawer. Can be null. </param>
/// <param name="label"> The prefix label. </param>
/// <param name="readOnly"> True if control should be read only. </param>
/// <returns> The instance, ready to be used. </returns>
public static PopupMenuDrawer Create(int selectedIndex, string[] items, LinkedMemberInfo memberInfo, IParentDrawer parent, GUIContent label, bool readOnly)
{
PopupMenuDrawer result;
if (!DrawerPool.TryGet(out result))
{
result = new PopupMenuDrawer();
}
result.Setup(selectedIndex, items, memberInfo, parent, label, readOnly);
result.LateSetup();
return(result);
}
/// <inheritdoc />
protected override void DoBuildMembers()
{
var value = Value;
if (value == null)
{
DrawerArrayPool.Resize(ref members, 2);
members[0] = NullToggleDrawer.Create(OnNullToggleButtonClicked, this, ReadOnly);
members[1] = ObjectReferenceDrawer.Create(null, Types.UnityObject, this, GUIContent.none, true, false, ReadOnly);
}
else
{
var target = value.Target;
bool hasTarget = target != null;
Object unityObject;
bool isUnityObject;
bool isAnonymous;
string methodName;
Type targetType;
int methodIndex;
var method = value.Method;
if (hasTarget)
{
targetType = target.GetType();
UpdateMethodOptions(targetType, true);
unityObject = target as Object;
isUnityObject = unityObject != null;
methodName = method.Name;
isAnonymous = methodName[0] == '<';
if (isAnonymous)
{
string methodOrigin = methodName.Substring(1, methodName.IndexOf('>') - 1);
methodName = string.Concat("Anonymous Method (", methodOrigin, ")");
}
methodIndex = Array.IndexOf(methodOptionNames, methodName);
if (methodIndex == -1)
{
methodOptions = methodOptions.InsertAt(0, method);
methodOptionNames = methodOptionNames.InsertAt(0, methodName);
methodIndex = 0;
}
}
else
{
methodIndex = 0;
if (method == null)
{
targetType = null;
methodName = "{ }";
unityObject = null;
isUnityObject = false;
isAnonymous = false;
ArrayPool <MethodInfo> .Resize(ref methodOptions, 1);
methodOptions[0] = method;
ArrayPool <string> .Resize(ref methodOptionNames, 1);
methodOptionNames[0] = methodName;
}
else
{
targetType = method.ReflectedType;
UpdateMethodOptions(targetType, false);
methodName = method.Name;
unityObject = null;
isUnityObject = false;
isAnonymous = methodName[0] == '<';
if (isAnonymous)
{
string methodOrigin = methodName.Substring(1, methodName.IndexOf('>') - 1);
methodName = string.Concat("Anonymous Method (", methodOrigin, ")");
}
methodIndex = Array.IndexOf(methodOptionNames, methodName);
if (methodIndex == -1)
{
methodOptions = methodOptions.InsertAt(0, method);
methodOptionNames = methodOptionNames.InsertAt(0, methodName);
methodIndex = 0;
}
}
}
#if DEV_MODE && PI_ASSERTATIONS
Debug.Assert(methodOptions.Length == methodOptionNames.Length);
#endif
#if DEV_MODE
Debug.Log(Msg(ToString() + ".DoBuildMembers with target=", target, ", type=", targetType, ", isUnityObject=", isUnityObject, ", methodName=", methodName, ", isAnonymous=", isAnonymous + ", methodNames=", StringUtils.ToString(methodOptionNames)));
#endif
if (isUnityObject)
{
DrawerArrayPool.Resize(ref members, 2);
members[0] = ObjectReferenceDrawer.Create(unityObject, Types.UnityObject, this, GUIContentPool.Empty(), true, false, ReadOnly);
members[1] = PopupMenuDrawer.Create(methodIndex, methodOptionNames, null, this, GUIContentPool.Empty(), ReadOnly);
}
else
{
DrawerArrayPool.Resize(ref members, 3);
members[0] = NullToggleDrawer.Create(OnNullToggleButtonClicked, this, ReadOnly);
members[1] = TypeDrawer.Create(targetType, null, this, GUIContentPool.Empty(), ReadOnly);
members[2] = PopupMenuDrawer.Create(methodIndex, methodOptionNames, null, this, GUIContentPool.Empty(), ReadOnly);
}
}
}