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sparkline.go
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// Copyright 2016 - 2019 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 XLSX files. Support reads and writes XLSX file generated by
// Microsoft Excel™ 2007 and later. Support save file without losing original
// charts of XLSX. This library needs Go version 1.10 or later.
package excelize
import (
"encoding/xml"
"errors"
"strings"
)
// addSparklineGroupByStyle provides a function to create x14:sparklineGroups
// element by given sparkline style ID.
func (f *File) addSparklineGroupByStyle(ID int) *xlsxX14SparklineGroup {
groups := []*xlsxX14SparklineGroup{
{
ColorSeries: &xlsxTabColor{Theme: 4, Tint: -0.499984740745262},
ColorNegative: &xlsxTabColor{Theme: 5},
ColorMarkers: &xlsxTabColor{Theme: 4, Tint: -0.499984740745262},
ColorFirst: &xlsxTabColor{Theme: 4, Tint: 0.39997558519241921},
ColorLast: &xlsxTabColor{Theme: 4, Tint: 0.39997558519241921},
ColorHigh: &xlsxTabColor{Theme: 4},
ColorLow: &xlsxTabColor{Theme: 4},
}, // 0
{
ColorSeries: &xlsxTabColor{Theme: 4, Tint: -0.499984740745262},
ColorNegative: &xlsxTabColor{Theme: 5},
ColorMarkers: &xlsxTabColor{Theme: 4, Tint: -0.499984740745262},
ColorFirst: &xlsxTabColor{Theme: 4, Tint: 0.39997558519241921},
ColorLast: &xlsxTabColor{Theme: 4, Tint: 0.39997558519241921},
ColorHigh: &xlsxTabColor{Theme: 4},
ColorLow: &xlsxTabColor{Theme: 4},
}, // 1
{
ColorSeries: &xlsxTabColor{Theme: 5, Tint: -0.499984740745262},
ColorNegative: &xlsxTabColor{Theme: 6},
ColorMarkers: &xlsxTabColor{Theme: 5, Tint: -0.499984740745262},
ColorFirst: &xlsxTabColor{Theme: 5, Tint: 0.39997558519241921},
ColorLast: &xlsxTabColor{Theme: 5, Tint: 0.39997558519241921},
ColorHigh: &xlsxTabColor{Theme: 5},
ColorLow: &xlsxTabColor{Theme: 5},
}, // 2
{
ColorSeries: &xlsxTabColor{Theme: 6, Tint: -0.499984740745262},
ColorNegative: &xlsxTabColor{Theme: 7},
ColorMarkers: &xlsxTabColor{Theme: 6, Tint: -0.499984740745262},
ColorFirst: &xlsxTabColor{Theme: 6, Tint: 0.39997558519241921},
ColorLast: &xlsxTabColor{Theme: 6, Tint: 0.39997558519241921},
ColorHigh: &xlsxTabColor{Theme: 6},
ColorLow: &xlsxTabColor{Theme: 6},
}, // 3
{
ColorSeries: &xlsxTabColor{Theme: 7, Tint: -0.499984740745262},
ColorNegative: &xlsxTabColor{Theme: 8},
ColorMarkers: &xlsxTabColor{Theme: 7, Tint: -0.499984740745262},
ColorFirst: &xlsxTabColor{Theme: 7, Tint: 0.39997558519241921},
ColorLast: &xlsxTabColor{Theme: 7, Tint: 0.39997558519241921},
ColorHigh: &xlsxTabColor{Theme: 7},
ColorLow: &xlsxTabColor{Theme: 7},
}, // 4
{
ColorSeries: &xlsxTabColor{Theme: 8, Tint: -0.499984740745262},
ColorNegative: &xlsxTabColor{Theme: 9},
ColorMarkers: &xlsxTabColor{Theme: 8, Tint: -0.499984740745262},
ColorFirst: &xlsxTabColor{Theme: 8, Tint: 0.39997558519241921},
ColorLast: &xlsxTabColor{Theme: 8, Tint: 0.39997558519241921},
ColorHigh: &xlsxTabColor{Theme: 8},
ColorLow: &xlsxTabColor{Theme: 8},
}, // 5
{
ColorSeries: &xlsxTabColor{Theme: 9, Tint: -0.499984740745262},
ColorNegative: &xlsxTabColor{Theme: 4},
ColorMarkers: &xlsxTabColor{Theme: 9, Tint: -0.499984740745262},
ColorFirst: &xlsxTabColor{Theme: 9, Tint: 0.39997558519241921},
ColorLast: &xlsxTabColor{Theme: 9, Tint: 0.39997558519241921},
ColorHigh: &xlsxTabColor{Theme: 9},
ColorLow: &xlsxTabColor{Theme: 9},
}, // 6
{
ColorSeries: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorNegative: &xlsxTabColor{Theme: 5},
ColorMarkers: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 5},
ColorLow: &xlsxTabColor{Theme: 5},
}, // 7
{
ColorSeries: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorNegative: &xlsxTabColor{Theme: 6},
ColorMarkers: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
}, // 8
{
ColorSeries: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorNegative: &xlsxTabColor{Theme: 7},
ColorMarkers: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
}, // 9
{
ColorSeries: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorNegative: &xlsxTabColor{Theme: 8},
ColorMarkers: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
}, // 10
{
ColorSeries: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorNegative: &xlsxTabColor{Theme: 9},
ColorMarkers: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
}, // 11
{
ColorSeries: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorNegative: &xlsxTabColor{Theme: 4},
ColorMarkers: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
}, // 12
{
ColorSeries: &xlsxTabColor{Theme: 4},
ColorNegative: &xlsxTabColor{Theme: 5},
ColorMarkers: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
}, // 13
{
ColorSeries: &xlsxTabColor{Theme: 5},
ColorNegative: &xlsxTabColor{Theme: 6},
ColorMarkers: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
}, // 14
{
ColorSeries: &xlsxTabColor{Theme: 6},
ColorNegative: &xlsxTabColor{Theme: 7},
ColorMarkers: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
}, // 15
{
ColorSeries: &xlsxTabColor{Theme: 7},
ColorNegative: &xlsxTabColor{Theme: 8},
ColorMarkers: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
}, // 16
{
ColorSeries: &xlsxTabColor{Theme: 8},
ColorNegative: &xlsxTabColor{Theme: 9},
ColorMarkers: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
}, // 17
{
ColorSeries: &xlsxTabColor{Theme: 9},
ColorNegative: &xlsxTabColor{Theme: 4},
ColorMarkers: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
}, // 18
{
ColorSeries: &xlsxTabColor{Theme: 4, Tint: 0.39997558519241921},
ColorNegative: &xlsxTabColor{Theme: 0, Tint: -0.499984740745262},
ColorMarkers: &xlsxTabColor{Theme: 4, Tint: 0.79998168889431442},
ColorFirst: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 4, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 4, Tint: -0.499984740745262},
ColorLow: &xlsxTabColor{Theme: 4, Tint: -0.499984740745262},
}, // 19
{
ColorSeries: &xlsxTabColor{Theme: 5, Tint: 0.39997558519241921},
ColorNegative: &xlsxTabColor{Theme: 0, Tint: -0.499984740745262},
ColorMarkers: &xlsxTabColor{Theme: 5, Tint: 0.79998168889431442},
ColorFirst: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 5, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 5, Tint: -0.499984740745262},
ColorLow: &xlsxTabColor{Theme: 5, Tint: -0.499984740745262},
}, // 20
{
ColorSeries: &xlsxTabColor{Theme: 6, Tint: 0.39997558519241921},
ColorNegative: &xlsxTabColor{Theme: 0, Tint: -0.499984740745262},
ColorMarkers: &xlsxTabColor{Theme: 6, Tint: 0.79998168889431442},
ColorFirst: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 6, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 6, Tint: -0.499984740745262},
ColorLow: &xlsxTabColor{Theme: 6, Tint: -0.499984740745262},
}, // 21
{
ColorSeries: &xlsxTabColor{Theme: 7, Tint: 0.39997558519241921},
ColorNegative: &xlsxTabColor{Theme: 0, Tint: -0.499984740745262},
ColorMarkers: &xlsxTabColor{Theme: 7, Tint: 0.79998168889431442},
ColorFirst: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 7, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 7, Tint: -0.499984740745262},
ColorLow: &xlsxTabColor{Theme: 7, Tint: -0.499984740745262},
}, // 22
{
ColorSeries: &xlsxTabColor{Theme: 8, Tint: 0.39997558519241921},
ColorNegative: &xlsxTabColor{Theme: 0, Tint: -0.499984740745262},
ColorMarkers: &xlsxTabColor{Theme: 8, Tint: 0.79998168889431442},
ColorFirst: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 8, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 8, Tint: -0.499984740745262},
ColorLow: &xlsxTabColor{Theme: 8, Tint: -0.499984740745262},
}, // 23
{
ColorSeries: &xlsxTabColor{Theme: 9, Tint: 0.39997558519241921},
ColorNegative: &xlsxTabColor{Theme: 0, Tint: -0.499984740745262},
ColorMarkers: &xlsxTabColor{Theme: 9, Tint: 0.79998168889431442},
ColorFirst: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 9, Tint: -0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 9, Tint: -0.499984740745262},
ColorLow: &xlsxTabColor{Theme: 9, Tint: -0.499984740745262},
}, // 24
{
ColorSeries: &xlsxTabColor{Theme: 1, Tint: 0.499984740745262},
ColorNegative: &xlsxTabColor{Theme: 1, Tint: 0.249977111117893},
ColorMarkers: &xlsxTabColor{Theme: 1, Tint: 0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 1, Tint: 0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 1, Tint: 0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 1, Tint: 0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 1, Tint: 0.249977111117893},
}, // 25
{
ColorSeries: &xlsxTabColor{Theme: 1, Tint: 0.34998626667073579},
ColorNegative: &xlsxTabColor{Theme: 0, Tint: 0.249977111117893},
ColorMarkers: &xlsxTabColor{Theme: 0, Tint: 0.249977111117893},
ColorFirst: &xlsxTabColor{Theme: 0, Tint: 0.249977111117893},
ColorLast: &xlsxTabColor{Theme: 0, Tint: 0.249977111117893},
ColorHigh: &xlsxTabColor{Theme: 0, Tint: 0.249977111117893},
ColorLow: &xlsxTabColor{Theme: 0, Tint: 0.249977111117893},
}, // 26
{
ColorSeries: &xlsxTabColor{RGB: "FF323232"},
ColorNegative: &xlsxTabColor{RGB: "FFD00000"},
ColorMarkers: &xlsxTabColor{RGB: "FFD00000"},
ColorFirst: &xlsxTabColor{RGB: "FFD00000"},
ColorLast: &xlsxTabColor{RGB: "FFD00000"},
ColorHigh: &xlsxTabColor{RGB: "FFD00000"},
ColorLow: &xlsxTabColor{RGB: "FFD00000"},
}, // 27
{
ColorSeries: &xlsxTabColor{RGB: "FF000000"},
ColorNegative: &xlsxTabColor{RGB: "FF0070C0"},
ColorMarkers: &xlsxTabColor{RGB: "FF0070C0"},
ColorFirst: &xlsxTabColor{RGB: "FF0070C0"},
ColorLast: &xlsxTabColor{RGB: "FF0070C0"},
ColorHigh: &xlsxTabColor{RGB: "FF0070C0"},
ColorLow: &xlsxTabColor{RGB: "FF0070C0"},
}, // 28
{
ColorSeries: &xlsxTabColor{RGB: "FF376092"},
ColorNegative: &xlsxTabColor{RGB: "FFD00000"},
ColorMarkers: &xlsxTabColor{RGB: "FFD00000"},
ColorFirst: &xlsxTabColor{RGB: "FFD00000"},
ColorLast: &xlsxTabColor{RGB: "FFD00000"},
ColorHigh: &xlsxTabColor{RGB: "FFD00000"},
ColorLow: &xlsxTabColor{RGB: "FFD00000"},
}, // 29
{
ColorSeries: &xlsxTabColor{RGB: "FF0070C0"},
ColorNegative: &xlsxTabColor{RGB: "FF000000"},
ColorMarkers: &xlsxTabColor{RGB: "FF000000"},
ColorFirst: &xlsxTabColor{RGB: "FF000000"},
ColorLast: &xlsxTabColor{RGB: "FF000000"},
ColorHigh: &xlsxTabColor{RGB: "FF000000"},
ColorLow: &xlsxTabColor{RGB: "FF000000"},
}, // 30
{
ColorSeries: &xlsxTabColor{RGB: "FF5F5F5F"},
ColorNegative: &xlsxTabColor{RGB: "FFFFB620"},
ColorMarkers: &xlsxTabColor{RGB: "FFD70077"},
ColorFirst: &xlsxTabColor{RGB: "FF5687C2"},
ColorLast: &xlsxTabColor{RGB: "FF359CEB"},
ColorHigh: &xlsxTabColor{RGB: "FF56BE79"},
ColorLow: &xlsxTabColor{RGB: "FFFF5055"},
}, // 31
{
ColorSeries: &xlsxTabColor{RGB: "FF5687C2"},
ColorNegative: &xlsxTabColor{RGB: "FFFFB620"},
ColorMarkers: &xlsxTabColor{RGB: "FFD70077"},
ColorFirst: &xlsxTabColor{RGB: "FF777777"},
ColorLast: &xlsxTabColor{RGB: "FF359CEB"},
ColorHigh: &xlsxTabColor{RGB: "FF56BE79"},
ColorLow: &xlsxTabColor{RGB: "FFFF5055"},
}, // 32
{
ColorSeries: &xlsxTabColor{RGB: "FFC6EFCE"},
ColorNegative: &xlsxTabColor{RGB: "FFFFC7CE"},
ColorMarkers: &xlsxTabColor{RGB: "FF8CADD6"},
ColorFirst: &xlsxTabColor{RGB: "FFFFDC47"},
ColorLast: &xlsxTabColor{RGB: "FFFFEB9C"},
ColorHigh: &xlsxTabColor{RGB: "FF60D276"},
ColorLow: &xlsxTabColor{RGB: "FFFF5367"},
}, // 33
{
ColorSeries: &xlsxTabColor{RGB: "FF00B050"},
ColorNegative: &xlsxTabColor{RGB: "FFFF0000"},
ColorMarkers: &xlsxTabColor{RGB: "FF0070C0"},
ColorFirst: &xlsxTabColor{RGB: "FFFFC000"},
ColorLast: &xlsxTabColor{RGB: "FFFFC000"},
ColorHigh: &xlsxTabColor{RGB: "FF00B050"},
ColorLow: &xlsxTabColor{RGB: "FFFF0000"},
}, // 34
{
ColorSeries: &xlsxTabColor{Theme: 3},
ColorNegative: &xlsxTabColor{Theme: 9},
ColorMarkers: &xlsxTabColor{Theme: 8},
ColorFirst: &xlsxTabColor{Theme: 4},
ColorLast: &xlsxTabColor{Theme: 5},
ColorHigh: &xlsxTabColor{Theme: 6},
ColorLow: &xlsxTabColor{Theme: 7},
}, // 35
{
ColorSeries: &xlsxTabColor{Theme: 1},
ColorNegative: &xlsxTabColor{Theme: 9},
ColorMarkers: &xlsxTabColor{Theme: 8},
ColorFirst: &xlsxTabColor{Theme: 4},
ColorLast: &xlsxTabColor{Theme: 5},
ColorHigh: &xlsxTabColor{Theme: 6},
ColorLow: &xlsxTabColor{Theme: 7},
}, // 36
}
return groups[ID]
}
// AddSparkline provides a function to add sparklines to the worksheet by
// given formatting options. Sparklines are small charts that fit in a single
// cell and are used to show trends in data. Sparklines are a feature of Excel
// 2010 and later only. You can write them to an XLSX file that can be read by
// Excel 2007 but they won't be displayed. For example, add a grouped
// sparkline. Changes are applied to all three:
//
// err := f.AddSparkline("Sheet1", &excelize.SparklineOption{
// Location: []string{"A1", "A2", "A3"},
// Range: []string{"Sheet2!A1:J1", "Sheet2!A2:J2", "Sheet2!A3:J3"},
// Markers: true,
// })
//
// The following shows the formatting options of sparkline supported by excelize:
//
// Parameter | Description
// -----------+--------------------------------------------
// Location | Required, must have the same number with 'Range' parameter
// Range | Required, must have the same number with 'Location' parameter
// Type | Enumeration value: line, column, win_loss
// Style | Value range: 0 - 35
// Hight | Toggle sparkline high points
// Low | Toggle sparkline low points
// First | Toggle sparkline first points
// Last | Toggle sparkline last points
// Negative | Toggle sparkline negative points
// Markers | Toggle sparkline markers
// ColorAxis | An RGB Color is specified as RRGGBB
// Axis | Show sparkline axis
//
func (f *File) AddSparkline(sheet string, opt *SparklineOption) error {
// parameter validation
ws, err := f.parseFormatAddSparklineSet(sheet, opt)
if err != nil {
return err
}
// Handle the sparkline type
sparkType := "line"
sparkTypes := map[string]string{"line": "line", "column": "column", "win_loss": "stacked"}
if opt.Type != "" {
specifiedSparkTypes, ok := sparkTypes[opt.Type]
if !ok {
return errors.New("parameter 'Type' must be 'line', 'column' or 'win_loss'")
}
sparkType = specifiedSparkTypes
}
group := f.addSparklineGroupByStyle(opt.Style)
group.Type = sparkType
group.ColorAxis = &xlsxColor{RGB: "FF000000"}
group.DisplayEmptyCellsAs = "gap"
group.High = opt.High
group.Low = opt.Low
group.First = opt.First
group.Last = opt.Last
group.Negative = opt.Negative
group.DisplayXAxis = opt.Axis
group.Markers = opt.Markers
if opt.SeriesColor != "" {
group.ColorSeries = &xlsxTabColor{
RGB: getPaletteColor(opt.SeriesColor),
}
}
if opt.Reverse {
group.RightToLeft = opt.Reverse
}
f.addSparkline(opt, group)
if ws.ExtLst.Ext != "" { // append mode ext
decodeExtLst := decodeWorksheetExt{}
err = xml.Unmarshal([]byte("<extLst>"+ws.ExtLst.Ext+"</extLst>"), &decodeExtLst)
if err != nil {
return err
}
for idx, ext := range decodeExtLst.Ext {
// hack: add back missing namespace
decodeExtLst.Ext[idx].XMLNSX14 = decodeExtLst.Ext[idx].X14
decodeExtLst.Ext[idx].XMLNSX15 = decodeExtLst.Ext[idx].X15
decodeExtLst.Ext[idx].XMLNSX14 = ""
decodeExtLst.Ext[idx].XMLNSX15 = ""
if ext.URI == ExtURISparklineGroups {
decodeSparklineGroups := decodeX14SparklineGroups{}
_ = xml.Unmarshal([]byte(ext.Content), &decodeSparklineGroups)
sparklineGroupBytes, _ := xml.Marshal(group)
groups := xlsxX14SparklineGroups{
XMLNSXM: NameSpaceSpreadSheetExcel2006Main,
Content: decodeSparklineGroups.Content + string(sparklineGroupBytes),
}
sparklineGroupsBytes, _ := xml.Marshal(groups)
decodeExtLst.Ext[idx].Content = string(sparklineGroupsBytes)
}
}
extLstBytes, _ := xml.Marshal(decodeExtLst)
extLst := string(extLstBytes)
ws.ExtLst = &xlsxExtLst{
Ext: strings.TrimSuffix(strings.TrimPrefix(extLst, "<extLst>"), "</extLst>"),
}
} else {
groups := xlsxX14SparklineGroups{
XMLNSXM: NameSpaceSpreadSheetExcel2006Main,
SparklineGroups: []*xlsxX14SparklineGroup{group},
}
sparklineGroupsBytes, _ := xml.Marshal(groups)
extLst := xlsxWorksheetExt{
XMLNSX14: NameSpaceSpreadSheetX14,
URI: ExtURISparklineGroups,
Content: string(sparklineGroupsBytes),
}
extBytes, _ := xml.Marshal(extLst)
ws.ExtLst.Ext = string(extBytes)
}
return nil
}
// parseFormatAddSparklineSet provides a function to validate sparkline
// properties.
func (f *File) parseFormatAddSparklineSet(sheet string, opt *SparklineOption) (*xlsxWorksheet, error) {
ws, err := f.workSheetReader(sheet)
if err != nil {
return ws, err
}
if opt == nil {
return ws, errors.New("parameter is required")
}
if len(opt.Location) < 1 {
return ws, errors.New("parameter 'Location' is required")
}
if len(opt.Range) < 1 {
return ws, errors.New("parameter 'Range' is required")
}
// The ranges and locations must match.\
if len(opt.Location) != len(opt.Range) {
return ws, errors.New(`must have the same number of 'Location' and 'Range' parameters`)
}
if opt.Style < 0 || opt.Style > 35 {
return ws, errors.New("parameter 'Style' must betweent 0-35")
}
if ws.ExtLst == nil {
ws.ExtLst = &xlsxExtLst{}
}
return ws, err
}
// addSparkline provides a function to create a sparkline in a sparkline group
// by given properties.
func (f *File) addSparkline(opt *SparklineOption, group *xlsxX14SparklineGroup) {
for idx, location := range opt.Location {
group.Sparklines.Sparkline = append(group.Sparklines.Sparkline, &xlsxX14Sparkline{
F: opt.Range[idx],
Sqref: location,
})
}
}