type Legend = 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: Legend);override;

public

    // empty property
    property Layout read ReadXmlChildLayout write WriteXmlChildLayout;
    function ReadXmlChildLayout();
    function WriteXmlChildLayout(_value);

    // normal property
    property LegendPos read ReadXmlChildLegendPos;
    property Overlay read ReadXmlChildOverlay;
    property TxPr read ReadXmlChildTxPr;
    function ReadXmlChildLegendPos();
    function ReadXmlChildOverlay();
    function ReadXmlChildTxPr();

public
    // Children
    XmlChildLegendPos: PureVal;
    XmlChildLayout: OpenXmlEmpty;
    XmlChildOverlay: PureVal;
    XmlChildTxPr: TxPr;

end;

function Legend.Create();overload;
begin
    {self.}Create(nil, "c", "legend");
end;

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

function Legend.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 Legend.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
    );
    sorted_child_ := array(
        pre + "legendPos": array(0, makeweakref(thisFunction(ReadXmlChildLegendPos))),
        pre + "layout": array(1, makeweakref(thisFunction(ReadXmlChildLayout))),
        pre + "overlay": array(2, makeweakref(thisFunction(ReadXmlChildOverlay))),
        pre + "txPr": array(3, makeweakref(thisFunction(ReadXmlChildTxPr))),
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function Legend.Copy(_obj: Legend);override;
begin
    tslassigning_backup := tslassigning;
    tslassigning := 1;
    class(OpenXmlElement).Copy(_obj);
    if not ifnil(_obj.XmlChildLegendPos) then
        {self.}LegendPos.Copy(_obj.XmlChildLegendPos);
    if not ifnil(_obj.XmlChildLayout) then
        ifnil({self.}XmlChildLayout) ? {self.}Layout.Copy(_obj.XmlChildLayout) : {self.}XmlChildLayout.Copy(_obj.XmlChildLayout);
    if not ifnil(_obj.XmlChildOverlay) then
        {self.}Overlay.Copy(_obj.XmlChildOverlay);
    if not ifnil(_obj.XmlChildTxPr) then
        {self.}TxPr.Copy(_obj.XmlChildTxPr);
    tslassigning := tslassigning_backup;
end;

function Legend.ReadXmlChildLayout();
begin
    if tslassigning and ifnil({self.}XmlChildLayout) then
    begin
        {self.}XmlChildLayout := new OpenXmlEmpty(self, {self.}Prefix, "layout");
        container_.Set({self.}XmlChildLayout);
        return {self.}XmlChildLayout;
    end
    return {self.}XmlChildLayout.BoolValue();
end;

function Legend.WriteXmlChildLayout(_value);
begin
    if ifnil({self.}XmlChildLayout) then
    begin
        {self.}XmlChildLayout := new OpenXmlEmpty(self, {self.}Prefix, "layout");
        container_.Set({self.}XmlChildLayout);
    end
    {self.}XmlChildLayout.Value := _value;
end;

function Legend.ReadXmlChildLegendPos();
begin
    if tslassigning and ifnil({self.}XmlChildLegendPos) then
    begin
        {self.}XmlChildLegendPos := new PureVal(self, {self.}Prefix, "legendPos");
        container_.Set({self.}XmlChildLegendPos);
    end
    return {self.}XmlChildLegendPos;
end;

function Legend.ReadXmlChildOverlay();
begin
    if tslassigning and ifnil({self.}XmlChildOverlay) then
    begin
        {self.}XmlChildOverlay := new PureVal(self, {self.}Prefix, "overlay");
        container_.Set({self.}XmlChildOverlay);
    end
    return {self.}XmlChildOverlay;
end;

function Legend.ReadXmlChildTxPr();
begin
    if tslassigning and ifnil({self.}XmlChildTxPr) then
    begin
        {self.}XmlChildTxPr := new TxPr(self, {self.}Prefix, "txPr");
        container_.Set({self.}XmlChildTxPr);
    end
    return {self.}XmlChildTxPr;
end;