/// <summary> Creates a new instance of the drawer or returns a reusable instance from the pool. </summary>
/// <param name="type"> Generic type definition whose type arguments the created drawer will represent. </param>
/// <param name="memberInfo"> LinkedMemberInfo that represents the class member that the generic arguments belong to. </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 drawer should be read only. </param>
/// <returns> The drawer instance, ready to be used. </returns>
public static GenericTypeArgumentDrawer Create(Type genericTypeArgument, LinkedMemberInfo memberInfo, IParentDrawer parent, GUIContent label, bool readOnly)
{
GenericTypeArgumentDrawer result;
if (!DrawerPool.TryGet(out result))
{
result = new GenericTypeArgumentDrawer();
}
result.Setup(genericTypeArgument, memberInfo, parent, label, readOnly);
result.LateSetup();
return(result);
}
/// <inheritdoc />
protected override void DoBuildMembers()
{
#if DEV_MODE && DEBUG_BUILD_MEMBERS
Debug.Log(StringUtils.ToColorizedString(ToString(), ".DoBuildMembers called with memberBuildList=", memberBuildList, ", IsNull = ", IsNull, ", CanBeUnityObject=", CanBeUnityObject, ", DrawToggleNullButton=", DrawToggleNullButton, ", memberInfo=", memberInfo, ", memberInfo.Data=", (memberInfo == null ? "n/a" : StringUtils.ToString(memberInfo.Data))));
#endif
var typeForValue = TypeForValue;
if (typeForValue == null)
{
if (CanBeUnityObject)
{
var referenceField = ObjectReferenceDrawer.Create(null, memberInfo, GetTypeForObjectReferenceField(), this, GUIContent.none, AllowSceneObjects(), false, ReadOnly);
if (DrawToggleNullButton)
{
DrawerArrayPool.Resize(ref members, 2);
members[0] = NullToggleDrawer.Create(OnNullToggleButtonClicked, this, ReadOnly);
members[1] = referenceField;
}
else
{
DrawerArrayPool.Resize(ref members, 1);
members[0] = referenceField;
}
}
else if (DrawToggleNullButton)
{
DrawerArrayPool.Resize(ref members, 1);
members[0] = NullToggleDrawer.Create(OnNullToggleButtonClicked, this, ReadOnly);
}
else
{
DrawerArrayPool.Resize(ref members, 1);
members[0] = ReadOnlyTextDrawer.Create("null", null, this, GUIContent.none);
}
}
else
{
var isGenericTypeDefinition = typeForValue.IsGenericTypeDefinition;
if (isGenericTypeDefinition)
{
DrawerArrayPool.Resize(ref members, 1);
members[0] = GenericTypeArgumentDrawer.Create(typeForValue, memberInfo, this, null, ReadOnly);
}
else
{
#if DEV_MODE && PI_ASSERTATIONS
Assert(typeForValue != null, ToString(), ".BuildMembers was called with isNull=false but with userSelectedType=", null, ".\nDrawInSingleRow=", DrawInSingleRow, ", Value=", Value, ", Value.Type=", StringUtils.TypeToString(Value));
Assert(!typeForValue.IsAbstract, ToString(), ".BuildMembers was called with isNull=false but with userSelectedType ", userSelectedType, " IsAbstract=" + true + ".\nDrawInSingleRow=", DrawInSingleRow, ", Value=", Value, ", Value.Type=", StringUtils.TypeToString(Value));
#endif
var valueDrawer = BuildDrawerForValue(typeForValue);
#if DEV_MODE && PI_ASSERTATIONS
Assert(valueDrawer.GetType() != GetType());
#endif
valueDrawer.OnValueChanged += (changed, setValue) => SetValue(setValue);
if (DrawToggleNullButton)
{
DrawerArrayPool.Resize(ref members, 2);
members[0] = NullToggleDrawer.Create(OnNullToggleButtonClicked, this, ReadOnly);
members[1] = valueDrawer;
}
else
{
DrawerArrayPool.Resize(ref members, 1);
members[0] = valueDrawer;
}
#if DRAW_VALUE_IN_SINGLE_ROW_IF_POSSIBLE
if (DrawerUtility.CanDrawInSingleRow(valueDrawer))
{
valueDrawer.Label = GUIContentPool.Empty();
}
#endif
}
}
}
