iedc-go/vendor/github.com/xuri/excelize/v2/xmlChart.go
2023-03-03 03:12:15 +08:00

657 lines
24 KiB
Go

// Copyright 2016 - 2022 The excelize Authors. All rights reserved. Use of
// this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
//
// Package excelize providing a set of functions that allow you to write to and
// read from XLAM / XLSM / XLSX / XLTM / XLTX files. Supports reading and
// writing spreadsheet documents generated by Microsoft Excel™ 2007 and later.
// Supports complex components by high compatibility, and provided streaming
// API for generating or reading data from a worksheet with huge amounts of
// data. This library needs Go version 1.15 or later.
package excelize
import "encoding/xml"
// xlsxChartSpace directly maps the chartSpace element. The chart namespace in
// DrawingML is for representing visualizations of numeric data with column
// charts, pie charts, scatter charts, or other types of charts.
type xlsxChartSpace struct {
XMLName xml.Name `xml:"http://schemas.openxmlformats.org/drawingml/2006/chart chartSpace"`
XMLNSa string `xml:"xmlns:a,attr"`
Date1904 *attrValBool `xml:"date1904"`
Lang *attrValString `xml:"lang"`
RoundedCorners *attrValBool `xml:"roundedCorners"`
Chart cChart `xml:"chart"`
SpPr *cSpPr `xml:"spPr"`
TxPr *cTxPr `xml:"txPr"`
PrintSettings *cPrintSettings `xml:"printSettings"`
}
// cThicknessSpPr directly maps the element that specifies the thickness of
// the walls or floor as a percentage of the largest dimension of the plot
// volume and SpPr element.
type cThicknessSpPr struct {
Thickness *attrValInt `xml:"thickness"`
SpPr *cSpPr `xml:"spPr"`
}
// cChart (Chart) directly maps the chart element. This element specifies a
// title.
type cChart struct {
Title *cTitle `xml:"title"`
AutoTitleDeleted *cAutoTitleDeleted `xml:"autoTitleDeleted"`
View3D *cView3D `xml:"view3D"`
Floor *cThicknessSpPr `xml:"floor"`
SideWall *cThicknessSpPr `xml:"sideWall"`
BackWall *cThicknessSpPr `xml:"backWall"`
PlotArea *cPlotArea `xml:"plotArea"`
Legend *cLegend `xml:"legend"`
PlotVisOnly *attrValBool `xml:"plotVisOnly"`
DispBlanksAs *attrValString `xml:"dispBlanksAs"`
ShowDLblsOverMax *attrValBool `xml:"showDLblsOverMax"`
}
// cTitle (Title) directly maps the title element. This element specifies a
// title.
type cTitle struct {
Tx cTx `xml:"tx,omitempty"`
Layout string `xml:"layout,omitempty"`
Overlay *attrValBool `xml:"overlay"`
SpPr cSpPr `xml:"spPr,omitempty"`
TxPr cTxPr `xml:"txPr,omitempty"`
}
// cTx (Chart Text) directly maps the tx element. This element specifies text
// to use on a chart, including rich text formatting.
type cTx struct {
StrRef *cStrRef `xml:"strRef"`
Rich *cRich `xml:"rich,omitempty"`
}
// cRich (Rich Text) directly maps the rich element. This element contains a
// string with rich text formatting.
type cRich struct {
BodyPr aBodyPr `xml:"a:bodyPr,omitempty"`
LstStyle string `xml:"a:lstStyle,omitempty"`
P aP `xml:"a:p"`
}
// aBodyPr (Body Properties) directly maps the a:bodyPr element. This element
// defines the body properties for the text body within a shape.
type aBodyPr struct {
Anchor string `xml:"anchor,attr,omitempty"`
AnchorCtr bool `xml:"anchorCtr,attr"`
Rot int `xml:"rot,attr"`
BIns float64 `xml:"bIns,attr,omitempty"`
CompatLnSpc bool `xml:"compatLnSpc,attr,omitempty"`
ForceAA bool `xml:"forceAA,attr,omitempty"`
FromWordArt bool `xml:"fromWordArt,attr,omitempty"`
HorzOverflow string `xml:"horzOverflow,attr,omitempty"`
LIns float64 `xml:"lIns,attr,omitempty"`
NumCol int `xml:"numCol,attr,omitempty"`
RIns float64 `xml:"rIns,attr,omitempty"`
RtlCol bool `xml:"rtlCol,attr,omitempty"`
SpcCol int `xml:"spcCol,attr,omitempty"`
SpcFirstLastPara bool `xml:"spcFirstLastPara,attr"`
TIns float64 `xml:"tIns,attr,omitempty"`
Upright bool `xml:"upright,attr,omitempty"`
Vert string `xml:"vert,attr,omitempty"`
VertOverflow string `xml:"vertOverflow,attr,omitempty"`
Wrap string `xml:"wrap,attr,omitempty"`
}
// aP (Paragraph) directly maps the a:p element. This element specifies a
// paragraph of content in the document.
type aP struct {
PPr *aPPr `xml:"a:pPr"`
R *aR `xml:"a:r"`
EndParaRPr *aEndParaRPr `xml:"a:endParaRPr"`
}
// aPPr (Paragraph Properties) directly maps the a:pPr element. This element
// specifies a set of paragraph properties which shall be applied to the
// contents of the parent paragraph after all style/numbering/table properties
// have been applied to the text. These properties are defined as direct
// formatting, since they are directly applied to the paragraph and supersede
// any formatting from styles.
type aPPr struct {
DefRPr aRPr `xml:"a:defRPr"`
}
// aSolidFill (Solid Fill) directly maps the solidFill element. This element
// specifies a solid color fill. The shape is filled entirely with the specified
// color.
type aSolidFill struct {
SchemeClr *aSchemeClr `xml:"a:schemeClr"`
SrgbClr *attrValString `xml:"a:srgbClr"`
}
// aSchemeClr (Scheme Color) directly maps the a:schemeClr element. This
// element specifies a color bound to a user's theme. As with all elements which
// define a color, it is possible to apply a list of color transforms to the
// base color defined.
type aSchemeClr struct {
Val string `xml:"val,attr,omitempty"`
LumMod *attrValInt `xml:"a:lumMod"`
LumOff *attrValInt `xml:"a:lumOff"`
}
// attrValInt directly maps the val element with integer data type as an
// attribute.
type attrValInt struct {
Val *int `xml:"val,attr"`
}
// attrValFloat directly maps the val element with float64 data type as an
// attribute.
type attrValFloat struct {
Val *float64 `xml:"val,attr"`
}
// attrValBool directly maps the val element with boolean data type as an
// attribute.
type attrValBool struct {
Val *bool `xml:"val,attr"`
}
// attrValString directly maps the val element with string data type as an
// attribute.
type attrValString struct {
Val *string `xml:"val,attr"`
}
// aCs directly maps the a:cs element.
type aCs struct {
Typeface string `xml:"typeface,attr"`
}
// aEa directly maps the a:ea element.
type aEa struct {
Typeface string `xml:"typeface,attr"`
}
// aLatin (Latin Font) directly maps the a:latin element. This element
// specifies that a Latin font be used for a specific run of text. This font is
// specified with a typeface attribute much like the others but is specifically
// classified as a Latin font.
type aLatin struct {
Typeface string `xml:"typeface,attr"`
}
// aR directly maps the a:r element.
type aR struct {
RPr aRPr `xml:"a:rPr,omitempty"`
T string `xml:"a:t,omitempty"`
}
// aRPr (Run Properties) directly maps the rPr element. This element
// specifies a set of run properties which shall be applied to the contents of
// the parent run after all style formatting has been applied to the text. These
// properties are defined as direct formatting, since they are directly applied
// to the run and supersede any formatting from styles.
type aRPr struct {
AltLang string `xml:"altLang,attr,omitempty"`
B bool `xml:"b,attr"`
Baseline int `xml:"baseline,attr"`
Bmk string `xml:"bmk,attr,omitempty"`
Cap string `xml:"cap,attr,omitempty"`
Dirty bool `xml:"dirty,attr,omitempty"`
Err bool `xml:"err,attr,omitempty"`
I bool `xml:"i,attr"`
Kern int `xml:"kern,attr"`
Kumimoji bool `xml:"kumimoji,attr,omitempty"`
Lang string `xml:"lang,attr,omitempty"`
NoProof bool `xml:"noProof,attr,omitempty"`
NormalizeH bool `xml:"normalizeH,attr,omitempty"`
SmtClean bool `xml:"smtClean,attr,omitempty"`
SmtID uint64 `xml:"smtId,attr,omitempty"`
Spc int `xml:"spc,attr"`
Strike string `xml:"strike,attr,omitempty"`
Sz float64 `xml:"sz,attr,omitempty"`
U string `xml:"u,attr,omitempty"`
SolidFill *aSolidFill `xml:"a:solidFill"`
Latin *aLatin `xml:"a:latin"`
Ea *aEa `xml:"a:ea"`
Cs *aCs `xml:"a:cs"`
}
// cSpPr (Shape Properties) directly maps the spPr element. This element
// specifies the visual shape properties that can be applied to a shape. These
// properties include the shape fill, outline, geometry, effects, and 3D
// orientation.
type cSpPr struct {
NoFill *string `xml:"a:noFill"`
SolidFill *aSolidFill `xml:"a:solidFill"`
Ln *aLn `xml:"a:ln"`
Sp3D *aSp3D `xml:"a:sp3d"`
EffectLst *string `xml:"a:effectLst"`
}
// aSp3D (3-D Shape Properties) directly maps the a:sp3d element. This element
// defines the 3D properties associated with a particular shape in DrawingML.
// The 3D properties which can be applied to a shape are top and bottom bevels,
// a contour and an extrusion.
type aSp3D struct {
ContourW int `xml:"contourW,attr"`
ContourClr *aContourClr `xml:"a:contourClr"`
}
// aContourClr (Contour Color) directly maps the a:contourClr element. This
// element defines the color for the contour on a shape. The contour of a shape
// is a solid filled line which surrounds the outer edges of the shape.
type aContourClr struct {
SchemeClr *aSchemeClr `xml:"a:schemeClr"`
}
// aLn (Outline) directly maps the a:ln element. This element specifies an
// outline style that can be applied to a number of different objects such as
// shapes and text. The line allows for the specifying of many different types
// of outlines including even line dashes and bevels.
type aLn struct {
Algn string `xml:"algn,attr,omitempty"`
Cap string `xml:"cap,attr,omitempty"`
Cmpd string `xml:"cmpd,attr,omitempty"`
W int `xml:"w,attr,omitempty"`
NoFill string `xml:"a:noFill,omitempty"`
Round string `xml:"a:round,omitempty"`
SolidFill *aSolidFill `xml:"a:solidFill"`
}
// cTxPr (Text Properties) directly maps the txPr element. This element
// specifies text formatting. The lstStyle element is not supported.
type cTxPr struct {
BodyPr aBodyPr `xml:"a:bodyPr,omitempty"`
LstStyle string `xml:"a:lstStyle,omitempty"`
P aP `xml:"a:p,omitempty"`
}
// aEndParaRPr (End Paragraph Run Properties) directly maps the a:endParaRPr
// element. This element specifies the text run properties that are to be used
// if another run is inserted after the last run specified. This effectively
// saves the run property state so that it can be applied when the user enters
// additional text. If this element is omitted, then the application can
// determine which default properties to apply. It is recommended that this
// element be specified at the end of the list of text runs within the paragraph
// so that an orderly list is maintained.
type aEndParaRPr struct {
Lang string `xml:"lang,attr"`
AltLang string `xml:"altLang,attr,omitempty"`
Sz int `xml:"sz,attr,omitempty"`
}
// cAutoTitleDeleted (Auto Title Is Deleted) directly maps the
// autoTitleDeleted element. This element specifies the title shall not be
// shown for this chart.
type cAutoTitleDeleted struct {
Val bool `xml:"val,attr"`
}
// cView3D (View In 3D) directly maps the view3D element. This element
// specifies the 3-D view of the chart.
type cView3D struct {
RotX *attrValInt `xml:"rotX"`
RotY *attrValInt `xml:"rotY"`
RAngAx *attrValInt `xml:"rAngAx"`
DepthPercent *attrValInt `xml:"depthPercent"`
Perspective *attrValInt `xml:"perspective"`
ExtLst *xlsxExtLst `xml:"extLst"`
}
// cPlotArea directly maps the plotArea element. This element specifies the
// plot area of the chart.
type cPlotArea struct {
Layout *string `xml:"layout"`
AreaChart *cCharts `xml:"areaChart"`
Area3DChart *cCharts `xml:"area3DChart"`
BarChart *cCharts `xml:"barChart"`
Bar3DChart *cCharts `xml:"bar3DChart"`
BubbleChart *cCharts `xml:"bubbleChart"`
DoughnutChart *cCharts `xml:"doughnutChart"`
LineChart *cCharts `xml:"lineChart"`
PieChart *cCharts `xml:"pieChart"`
Pie3DChart *cCharts `xml:"pie3DChart"`
OfPieChart *cCharts `xml:"ofPieChart"`
RadarChart *cCharts `xml:"radarChart"`
ScatterChart *cCharts `xml:"scatterChart"`
Surface3DChart *cCharts `xml:"surface3DChart"`
SurfaceChart *cCharts `xml:"surfaceChart"`
CatAx []*cAxs `xml:"catAx"`
ValAx []*cAxs `xml:"valAx"`
SerAx []*cAxs `xml:"serAx"`
SpPr *cSpPr `xml:"spPr"`
}
// cCharts specifies the common element of the chart.
type cCharts struct {
BarDir *attrValString `xml:"barDir"`
BubbleScale *attrValFloat `xml:"bubbleScale"`
Grouping *attrValString `xml:"grouping"`
RadarStyle *attrValString `xml:"radarStyle"`
ScatterStyle *attrValString `xml:"scatterStyle"`
OfPieType *attrValString `xml:"ofPieType"`
VaryColors *attrValBool `xml:"varyColors"`
Wireframe *attrValBool `xml:"wireframe"`
Ser *[]cSer `xml:"ser"`
SerLines *attrValString `xml:"serLines"`
DLbls *cDLbls `xml:"dLbls"`
Shape *attrValString `xml:"shape"`
HoleSize *attrValInt `xml:"holeSize"`
Smooth *attrValBool `xml:"smooth"`
Overlap *attrValInt `xml:"overlap"`
AxID []*attrValInt `xml:"axId"`
}
// cAxs directly maps the catAx and valAx element.
type cAxs struct {
AxID *attrValInt `xml:"axId"`
Scaling *cScaling `xml:"scaling"`
Delete *attrValBool `xml:"delete"`
AxPos *attrValString `xml:"axPos"`
MajorGridlines *cChartLines `xml:"majorGridlines"`
MinorGridlines *cChartLines `xml:"minorGridlines"`
NumFmt *cNumFmt `xml:"numFmt"`
MajorTickMark *attrValString `xml:"majorTickMark"`
MinorTickMark *attrValString `xml:"minorTickMark"`
TickLblPos *attrValString `xml:"tickLblPos"`
SpPr *cSpPr `xml:"spPr"`
TxPr *cTxPr `xml:"txPr"`
CrossAx *attrValInt `xml:"crossAx"`
Crosses *attrValString `xml:"crosses"`
CrossBetween *attrValString `xml:"crossBetween"`
MajorUnit *attrValFloat `xml:"majorUnit"`
MinorUnit *attrValFloat `xml:"minorUnit"`
Auto *attrValBool `xml:"auto"`
LblAlgn *attrValString `xml:"lblAlgn"`
LblOffset *attrValInt `xml:"lblOffset"`
TickLblSkip *attrValInt `xml:"tickLblSkip"`
TickMarkSkip *attrValInt `xml:"tickMarkSkip"`
NoMultiLvlLbl *attrValBool `xml:"noMultiLvlLbl"`
}
// cChartLines directly maps the chart lines content model.
type cChartLines struct {
SpPr *cSpPr `xml:"spPr"`
}
// cScaling directly maps the scaling element. This element contains
// additional axis settings.
type cScaling struct {
LogBase *attrValFloat `xml:"logBase"`
Orientation *attrValString `xml:"orientation"`
Max *attrValFloat `xml:"max"`
Min *attrValFloat `xml:"min"`
}
// cNumFmt (Numbering Format) directly maps the numFmt element. This element
// specifies number formatting for the parent element.
type cNumFmt struct {
FormatCode string `xml:"formatCode,attr"`
SourceLinked bool `xml:"sourceLinked,attr"`
}
// cSer directly maps the ser element. This element specifies a series on a
// chart.
type cSer struct {
IDx *attrValInt `xml:"idx"`
Order *attrValInt `xml:"order"`
Tx *cTx `xml:"tx"`
SpPr *cSpPr `xml:"spPr"`
DPt []*cDPt `xml:"dPt"`
DLbls *cDLbls `xml:"dLbls"`
Marker *cMarker `xml:"marker"`
InvertIfNegative *attrValBool `xml:"invertIfNegative"`
Cat *cCat `xml:"cat"`
Val *cVal `xml:"val"`
XVal *cCat `xml:"xVal"`
YVal *cVal `xml:"yVal"`
Smooth *attrValBool `xml:"smooth"`
BubbleSize *cVal `xml:"bubbleSize"`
Bubble3D *attrValBool `xml:"bubble3D"`
}
// cMarker (Marker) directly maps the marker element. This element specifies a
// data marker.
type cMarker struct {
Symbol *attrValString `xml:"symbol"`
Size *attrValInt `xml:"size"`
SpPr *cSpPr `xml:"spPr"`
}
// cDPt (Data Point) directly maps the dPt element. This element specifies a
// single data point.
type cDPt struct {
IDx *attrValInt `xml:"idx"`
Bubble3D *attrValBool `xml:"bubble3D"`
SpPr *cSpPr `xml:"spPr"`
}
// cCat (Category Axis Data) directly maps the cat element. This element
// specifies the data used for the category axis.
type cCat struct {
StrRef *cStrRef `xml:"strRef"`
}
// cStrRef (String Reference) directly maps the strRef element. This element
// specifies a reference to data for a single data label or title with a cache
// of the last values used.
type cStrRef struct {
F string `xml:"f"`
StrCache *cStrCache `xml:"strCache"`
}
// cStrCache (String Cache) directly maps the strCache element. This element
// specifies the last string data used for a chart.
type cStrCache struct {
Pt []*cPt `xml:"pt"`
PtCount *attrValInt `xml:"ptCount"`
}
// cPt directly maps the pt element. This element specifies data for a
// particular data point.
type cPt struct {
IDx int `xml:"idx,attr"`
V *string `xml:"v"`
}
// cVal directly maps the val element. This element specifies the data values
// which shall be used to define the location of data markers on a chart.
type cVal struct {
NumRef *cNumRef `xml:"numRef"`
}
// cNumRef directly maps the numRef element. This element specifies a
// reference to numeric data with a cache of the last values used.
type cNumRef struct {
F string `xml:"f"`
NumCache *cNumCache `xml:"numCache"`
}
// cNumCache directly maps the numCache element. This element specifies the
// last data shown on the chart for a series.
type cNumCache struct {
FormatCode string `xml:"formatCode"`
Pt []*cPt `xml:"pt"`
PtCount *attrValInt `xml:"ptCount"`
}
// cDLbls (Data Lables) directly maps the dLbls element. This element serves
// as a root element that specifies the settings for the data labels for an
// entire series or the entire chart. It contains child elements that specify
// the specific formatting and positioning settings.
type cDLbls struct {
ShowLegendKey *attrValBool `xml:"showLegendKey"`
ShowVal *attrValBool `xml:"showVal"`
ShowCatName *attrValBool `xml:"showCatName"`
ShowSerName *attrValBool `xml:"showSerName"`
ShowPercent *attrValBool `xml:"showPercent"`
ShowBubbleSize *attrValBool `xml:"showBubbleSize"`
ShowLeaderLines *attrValBool `xml:"showLeaderLines"`
}
// cLegend (Legend) directly maps the legend element. This element specifies
// the legend.
type cLegend struct {
Layout *string `xml:"layout"`
LegendPos *attrValString `xml:"legendPos"`
Overlay *attrValBool `xml:"overlay"`
SpPr *cSpPr `xml:"spPr"`
TxPr *cTxPr `xml:"txPr"`
}
// cPrintSettings directly maps the printSettings element. This element
// specifies the print settings for the chart.
type cPrintSettings struct {
HeaderFooter *string `xml:"headerFooter"`
PageMargins *cPageMargins `xml:"pageMargins"`
PageSetup *string `xml:"pageSetup"`
}
// cPageMargins directly maps the pageMargins element. This element specifies
// the page margins for a chart.
type cPageMargins struct {
B float64 `xml:"b,attr"`
Footer float64 `xml:"footer,attr"`
Header float64 `xml:"header,attr"`
L float64 `xml:"l,attr"`
R float64 `xml:"r,attr"`
T float64 `xml:"t,attr"`
}
// formatChartAxis directly maps the format settings of the chart axis.
type formatChartAxis struct {
None bool `json:"none"`
Crossing string `json:"crossing"`
MajorGridlines bool `json:"major_grid_lines"`
MinorGridlines bool `json:"minor_grid_lines"`
MajorTickMark string `json:"major_tick_mark"`
MinorTickMark string `json:"minor_tick_mark"`
MinorUnitType string `json:"minor_unit_type"`
MajorUnit float64 `json:"major_unit"`
MajorUnitType string `json:"major_unit_type"`
TickLabelSkip int `json:"tick_label_skip"`
DisplayUnits string `json:"display_units"`
DisplayUnitsVisible bool `json:"display_units_visible"`
DateAxis bool `json:"date_axis"`
ReverseOrder bool `json:"reverse_order"`
Maximum *float64 `json:"maximum"`
Minimum *float64 `json:"minimum"`
NumFormat string `json:"num_format"`
NumFont struct {
Color string `json:"color"`
Bold bool `json:"bold"`
Italic bool `json:"italic"`
Underline bool `json:"underline"`
} `json:"num_font"`
LogBase float64 `json:"logbase"`
NameLayout formatLayout `json:"name_layout"`
}
type formatChartDimension struct {
Width int `json:"width"`
Height int `json:"height"`
}
// formatChart directly maps the format settings of the chart.
type formatChart struct {
Type string `json:"type"`
Series []formatChartSeries `json:"series"`
Format formatPicture `json:"format"`
Dimension formatChartDimension `json:"dimension"`
Legend formatChartLegend `json:"legend"`
Title formatChartTitle `json:"title"`
VaryColors bool `json:"vary_colors"`
XAxis formatChartAxis `json:"x_axis"`
YAxis formatChartAxis `json:"y_axis"`
Chartarea struct {
Border struct {
None bool `json:"none"`
} `json:"border"`
Fill struct {
Color string `json:"color"`
} `json:"fill"`
Pattern struct {
Pattern string `json:"pattern"`
FgColor string `json:"fg_color"`
BgColor string `json:"bg_color"`
} `json:"pattern"`
} `json:"chartarea"`
Plotarea struct {
ShowBubbleSize bool `json:"show_bubble_size"`
ShowCatName bool `json:"show_cat_name"`
ShowLeaderLines bool `json:"show_leader_lines"`
ShowPercent bool `json:"show_percent"`
ShowSerName bool `json:"show_series_name"`
ShowVal bool `json:"show_val"`
Gradient struct {
Colors []string `json:"colors"`
} `json:"gradient"`
Border struct {
Color string `json:"color"`
Width int `json:"width"`
DashType string `json:"dash_type"`
} `json:"border"`
Fill struct {
Color string `json:"color"`
} `json:"fill"`
Layout formatLayout `json:"layout"`
} `json:"plotarea"`
ShowBlanksAs string `json:"show_blanks_as"`
ShowHiddenData bool `json:"show_hidden_data"`
SetRotation int `json:"set_rotation"`
HoleSize int `json:"hole_size"`
order int
}
// formatChartLegend directly maps the format settings of the chart legend.
type formatChartLegend struct {
None bool `json:"none"`
DeleteSeries []int `json:"delete_series"`
Font Font `json:"font"`
Layout formatLayout `json:"layout"`
Position string `json:"position"`
ShowLegendEntry bool `json:"show_legend_entry"`
ShowLegendKey bool `json:"show_legend_key"`
}
// formatChartSeries directly maps the format settings of the chart series.
type formatChartSeries struct {
Name string `json:"name"`
Categories string `json:"categories"`
Values string `json:"values"`
Line struct {
None bool `json:"none"`
Color string `json:"color"`
Width float64 `json:"width"`
} `json:"line"`
Marker struct {
Symbol string `json:"symbol"`
Size int `json:"size"`
Width float64 `json:"width"`
Border struct {
Color string `json:"color"`
None bool `json:"none"`
} `json:"border"`
Fill struct {
Color string `json:"color"`
None bool `json:"none"`
} `json:"fill"`
} `json:"marker"`
}
// formatChartTitle directly maps the format settings of the chart title.
type formatChartTitle struct {
None bool `json:"none"`
Name string `json:"name"`
Overlay bool `json:"overlay"`
Layout formatLayout `json:"layout"`
}
// formatLayout directly maps the format settings of the element layout.
type formatLayout struct {
X float64 `json:"x"`
Y float64 `json:"y"`
Width float64 `json:"width"`
Height float64 `json:"height"`
}