type XY = class(OpenXmlElement)
public
    function Create();overload;
    function Create(_node: XmlNode);overload;
    function Create(_parent: tslobj; _prefix: string; _local_name: string);overload;
    function Init();override;
    function Copy(_obj: XY);override;

public

    // attributes property
    property X read ReadXmlAttrX write WriteXmlAttrX;
    property Y read ReadXmlAttrY write WriteXmlAttrY;
    function ReadXmlAttrX();
    function WriteXmlAttrX(_value);
    function ReadXmlAttrY();
    function WriteXmlAttrY(_value);

public
    // Attributes
    XmlAttrX: OpenXmlAttribute;
    XmlAttrY: OpenXmlAttribute;


end;

function XY.Create();overload;
begin
    {self.}Create(nil, "", "");
end;

function XY.Create(_node: XmlNode);overload;
begin
    class(OpenXmlElement).Create(_node: XmlNode);
end;

function XY.Create(_parent: tslobj; _prefix: string; _local_name: string);overload;
begin
    setsysparam(pn_calcctrlword(), getsysparam(pn_calcctrlword()) .| 0x200);
    class(OpenXmlElement).Create(_parent, _prefix, _local_name);
end;

function XY.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
        "x": makeweakref(thisFunction(WriteXmlAttrX)),
        "y": makeweakref(thisFunction(WriteXmlAttrY)),
    );
    sorted_child_ := array(
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function XY.Copy(_obj: XY);override;
begin
    tslassigning_backup := tslassigning;
    tslassigning := 1;
    class(OpenXmlElement).Copy(_obj);
    if not ifnil(_obj.X) then
        {self.}X := _obj.X;
    if not ifnil(_obj.Y) then
        {self.}Y := _obj.Y;
    tslassigning := tslassigning_backup;
end;

function XY.ReadXmlAttrX();
begin
    return {self.}XmlAttrX.Value;
end;

function XY.WriteXmlAttrX(_value);
begin
    if ifnil({self.}XmlAttrX) then
    begin
        {self.}XmlAttrX := new OpenXmlAttribute("", "x", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrX;
    end
    {self.}XmlAttrX.Value := _value;
end;

function XY.ReadXmlAttrY();
begin
    return {self.}XmlAttrY.Value;
end;

function XY.WriteXmlAttrY(_value);
begin
    if ifnil({self.}XmlAttrY) then
    begin
        {self.}XmlAttrY := new OpenXmlAttribute("", "y", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrY;
    end
    {self.}XmlAttrY.Value := _value;
end;