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styles.go
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package excelize
import (
"encoding/json"
"encoding/xml"
"strconv"
"strings"
)
// Excel styles can reference number formats that are built-in, all of which
// have an id less than 164. This is a possibly incomplete list comprised of as
// many of them as I could find.
var builtInNumFmt = map[int]string{
0: "general",
1: "0",
2: "0.00",
3: "#,##0",
4: "#,##0.00",
9: "0%",
10: "0.00%",
11: "0.00e+00",
12: "# ?/?",
13: "# ??/??",
14: "mm-dd-yy",
15: "d-mmm-yy",
16: "d-mmm",
17: "mmm-yy",
18: "h:mm am/pm",
19: "h:mm:ss am/pm",
20: "h:mm",
21: "h:mm:ss",
22: "m/d/yy h:mm",
37: "#,##0 ;(#,##0)",
38: "#,##0 ;[red](#,##0)",
39: "#,##0.00;(#,##0.00)",
40: "#,##0.00;[red](#,##0.00)",
41: `_(* #,##0_);_(* \(#,##0\);_(* "-"_);_(@_)`,
42: `_("$"* #,##0_);_("$* \(#,##0\);_("$"* "-"_);_(@_)`,
43: `_(* #,##0.00_);_(* \(#,##0.00\);_(* "-"??_);_(@_)`,
44: `_("$"* #,##0.00_);_("$"* \(#,##0.00\);_("$"* "-"??_);_(@_)`,
45: "mm:ss",
46: "[h]:mm:ss",
47: "mmss.0",
48: "##0.0e+0",
49: "@",
}
// parseFormatStyleSet provides function to parse the format settings of the
// borders.
func parseFormatStyleSet(style string) (*formatCellStyle, error) {
var format formatCellStyle
err := json.Unmarshal([]byte(style), &format)
return &format, err
}
// SetCellStyle provides function to set style for cells by given sheet index
// and coordinate area in XLSX file. Note that the color field uses RGB color
// code and diagonalDown and diagonalUp type border should be use same color in
// the same coordinate area.
//
// For example create a borders of cell H9 on Sheet1:
//
// err := xlsx.SetCellStyle("Sheet1", "H9", "H9", `{"border":[{"type":"left","color":"0000FF","style":3},{"type":"top","color":"00FF00","style":4},{"type":"bottom","color":"FFFF00","style":5},{"type":"right","color":"FF0000","style":6},{"type":"diagonalDown","color":"A020F0","style":7},{"type":"diagonalUp","color":"A020F0","style":8}]}`)
// if err != nil {
// fmt.Println(err)
// }
//
// Set gradient fill with vertical variants shading styles for cell H9 on
// Sheet1:
//
// err := xlsx.SetCellStyle("Sheet1", "H9", "H9", `{"fill":{"type":"gradient","color":["#FFFFFF","#E0EBF5"],"shading":1}}`)
// if err != nil {
// fmt.Println(err)
// }
//
// Set solid style pattern fill for cell H9 on Sheet1:
//
// err := xlsx.SetCellStyle("Sheet1", "H9", "H9", `{"fill":{"type":"pattern","color":["#E0EBF5"],"pattern":1}}`)
// if err != nil {
// fmt.Println(err)
// }
//
// Set alignment style for cell H9 on Sheet1:
//
// err = xlsx.SetCellStyle("Sheet1", "H9", "H9", `{"alignment":{"horizontal":"center","ident":1,"justify_last_line":true,"reading_order":0,"relative_indent":1,"shrink_to_fit":true,"text_rotation":45,"vertical":"","wrap_text":true}}`)
// if err != nil {
// fmt.Println(err)
// }
//
// Dates and times in Excel are represented by real numbers, for example "Apr 7
// 2017 12:00 PM" is represented by the number 42920.5. Set date and time format
// for cell H9 on Sheet1:
//
// xlsx.SetCellValue("Sheet2", "H9", 42920.5)
// err = xlsx.SetCellStyle("Sheet1", "H9", "H9", `{"number_format": 22}`)
// if err != nil {
// fmt.Println(err)
// }
//
// The following shows the border styles sorted by excelize index number:
//
// +-------+---------------+--------+-----------------+
// | Index | Name | Weight | Style |
// +=======+===============+========+=================+
// | 0 | None | 0 | |
// +-------+---------------+--------+-----------------+
// | 1 | Continuous | 1 | ``-----------`` |
// +-------+---------------+--------+-----------------+
// | 2 | Continuous | 2 | ``-----------`` |
// +-------+---------------+--------+-----------------+
// | 3 | Dash | 1 | ``- - - - - -`` |
// +-------+---------------+--------+-----------------+
// | 4 | Dot | 1 | ``. . . . . .`` |
// +-------+---------------+--------+-----------------+
// | 5 | Continuous | 3 | ``-----------`` |
// +-------+---------------+--------+-----------------+
// | 6 | Double | 3 | ``===========`` |
// +-------+---------------+--------+-----------------+
// | 7 | Continuous | 0 | ``-----------`` |
// +-------+---------------+--------+-----------------+
// | 8 | Dash | 2 | ``- - - - - -`` |
// +-------+---------------+--------+-----------------+
// | 9 | Dash Dot | 1 | ``- . - . - .`` |
// +-------+---------------+--------+-----------------+
// | 10 | Dash Dot | 2 | ``- . - . - .`` |
// +-------+---------------+--------+-----------------+
// | 11 | Dash Dot Dot | 1 | ``- . . - . .`` |
// +-------+---------------+--------+-----------------+
// | 12 | Dash Dot Dot | 2 | ``- . . - . .`` |
// +-------+---------------+--------+-----------------+
// | 13 | SlantDash Dot | 2 | ``/ - . / - .`` |
// +-------+---------------+--------+-----------------+
//
// The following shows the borders in the order shown in the Excel dialog:
//
// +-------+-----------------+-------+-----------------+
// | Index | Style | Index | Style |
// +=======+=================+=======+=================+
// | 0 | None | 12 | ``- . . - . .`` |
// +-------+-----------------+-------+-----------------+
// | 7 | ``-----------`` | 13 | ``/ - . / - .`` |
// +-------+-----------------+-------+-----------------+
// | 4 | ``. . . . . .`` | 10 | ``- . - . - .`` |
// +-------+-----------------+-------+-----------------+
// | 11 | ``- . . - . .`` | 8 | ``- - - - - -`` |
// +-------+-----------------+-------+-----------------+
// | 9 | ``- . - . - .`` | 2 | ``-----------`` |
// +-------+-----------------+-------+-----------------+
// | 3 | ``- - - - - -`` | 5 | ``-----------`` |
// +-------+-----------------+-------+-----------------+
// | 1 | ``-----------`` | 6 | ``===========`` |
// +-------+-----------------+-------+-----------------+
//
// The following shows the shading styles sorted by excelize index number:
//
// +-------+-----------------+-------+-----------------+
// | Index | Style | Index | Style |
// +=======+=================+=======+=================+
// | 0 | Horizontal | 3 | Diagonal down |
// +-------+-----------------+-------+-----------------+
// | 1 | Vertical | 4 | From corner |
// +-------+-----------------+-------+-----------------+
// | 2 | Diagonal Up | 5 | From center |
// +-------+-----------------+-------+-----------------+
//
// The following shows the patterns styles sorted by excelize index number:
//
// +-------+-----------------+-------+-----------------+
// | Index | Style | Index | Style |
// +=======+=================+=======+=================+
// | 0 | None | 10 | darkTrellis |
// +-------+-----------------+-------+-----------------+
// | 1 | solid | 11 | lightHorizontal |
// +-------+-----------------+-------+-----------------+
// | 2 | mediumGray | 12 | lightVertical |
// +-------+-----------------+-------+-----------------+
// | 3 | darkGray | 13 | lightDown |
// +-------+-----------------+-------+-----------------+
// | 4 | lightGray | 14 | lightUp |
// +-------+-----------------+-------+-----------------+
// | 5 | darkHorizontal | 15 | lightGrid |
// +-------+-----------------+-------+-----------------+
// | 6 | darkVertical | 16 | lightTrellis |
// +-------+-----------------+-------+-----------------+
// | 7 | darkDown | 17 | gray125 |
// +-------+-----------------+-------+-----------------+
// | 8 | darkUp | 18 | gray0625 |
// +-------+-----------------+-------+-----------------+
// | 9 | darkGrid | | |
// +-------+-----------------+-------+-----------------+
//
// The following the type of horizontal alignment in cells:
//
// +------------------+
// | Style |
// +==================+
// | left |
// +------------------+
// | center |
// +------------------+
// | right |
// +------------------+
// | fill |
// +------------------+
// | justify |
// +------------------+
// | centerContinuous |
// +------------------+
// | distributed |
// +------------------+
//
// The following the type of vertical alignment in cells:
//
// +------------------+
// | Style |
// +==================+
// | top |
// +------------------+
// | center |
// +------------------+
// | justify |
// +------------------+
// | distributed |
// +------------------+
//
// Excel's built-in formats are shown in the following table:
//
// +-------+----------------------------------------------------+
// | Index | Format String |
// +=======+====================================================+
// | 0 | General |
// +-------+----------------------------------------------------+
// | 1 | 0 |
// +-------+----------------------------------------------------+
// | 2 | 0.00 |
// +-------+----------------------------------------------------+
// | 3 | #,##0 |
// +-------+----------------------------------------------------+
// | 4 | #,##0.00 |
// +-------+----------------------------------------------------+
// | 5 | ($#,##0_);($#,##0) |
// +-------+----------------------------------------------------+
// | 6 | ($#,##0_);[Red]($#,##0) |
// +-------+----------------------------------------------------+
// | 7 | ($#,##0.00_);($#,##0.00) |
// +-------+----------------------------------------------------+
// | 8 | ($#,##0.00_);[Red]($#,##0.00) |
// +-------+----------------------------------------------------+
// | 9 | 0% |
// +-------+----------------------------------------------------+
// | 10 | 0.00% |
// +-------+----------------------------------------------------+
// | 11 | 0.00E+00 |
// +-------+----------------------------------------------------+
// | 12 | # ?/? |
// +-------+----------------------------------------------------+
// | 13 | # ??/?? |
// +-------+----------------------------------------------------+
// | 14 | m/d/yy |
// +-------+----------------------------------------------------+
// | 15 | d-mmm-yy |
// +-------+----------------------------------------------------+
// | 16 | d-mmm |
// +-------+----------------------------------------------------+
// | 17 | mmm-yy |
// +-------+----------------------------------------------------+
// | 18 | h:mm AM/PM |
// +-------+----------------------------------------------------+
// | 19 | h:mm:ss AM/PM |
// +-------+----------------------------------------------------+
// | 20 | h:mm |
// +-------+----------------------------------------------------+
// | 21 | h:mm:ss |
// +-------+----------------------------------------------------+
// | 22 | m/d/yy h:mm |
// +-------+----------------------------------------------------+
// | ... | ... |
// +-------+----------------------------------------------------+
// | 37 | (#,##0_);(#,##0) |
// +-------+----------------------------------------------------+
// | 38 | (#,##0_);[Red](#,##0) |
// +-------+----------------------------------------------------+
// | 39 | (#,##0.00_);(#,##0.00) |
// +-------+----------------------------------------------------+
// | 40 | (#,##0.00_);[Red](#,##0.00) |
// +-------+----------------------------------------------------+
// | 41 | _(* #,##0_);_(* (#,##0);_(* "-"_);_(@_) |
// +-------+----------------------------------------------------+
// | 42 | _($* #,##0_);_($* (#,##0);_($* "-"_);_(@_) |
// +-------+----------------------------------------------------+
// | 43 | _(* #,##0.00_);_(* (#,##0.00);_(* "-"??_);_(@_) |
// +-------+----------------------------------------------------+
// | 44 | _($* #,##0.00_);_($* (#,##0.00);_($* "-"??_);_(@_) |
// +-------+----------------------------------------------------+
// | 45 | mm:ss |
// +-------+----------------------------------------------------+
// | 46 | [h]:mm:ss |
// +-------+----------------------------------------------------+
// | 47 | mm:ss.0 |
// +-------+----------------------------------------------------+
// | 48 | ##0.0E+0 |
// +-------+----------------------------------------------------+
// | 49 | @ |
// +-------+----------------------------------------------------+
//
func (f *File) SetCellStyle(sheet, hcell, vcell, style string) error {
var styleSheet xlsxStyleSheet
xml.Unmarshal([]byte(f.readXML("xl/styles.xml")), &styleSheet)
formatCellStyle, err := parseFormatStyleSet(style)
if err != nil {
return err
}
numFmtID := setNumFmt(&styleSheet, formatCellStyle)
borderID := setBorders(&styleSheet, formatCellStyle)
fillID := setFills(&styleSheet, formatCellStyle)
applyAlignment, alignment := setAlignment(&styleSheet, formatCellStyle)
cellXfsID := setCellXfs(&styleSheet, numFmtID, fillID, borderID, applyAlignment, alignment)
output, err := xml.Marshal(styleSheet)
if err != nil {
return err
}
f.saveFileList("xl/styles.xml", replaceWorkSheetsRelationshipsNameSpace(string(output)))
f.setCellStyle(sheet, hcell, vcell, cellXfsID)
return err
}
// setNumFmt provides function to check if number format code in the range of
// built-in values.
func setNumFmt(style *xlsxStyleSheet, formatCellStyle *formatCellStyle) int {
_, ok := builtInNumFmt[formatCellStyle.NumFmt]
if !ok {
return 0
}
return formatCellStyle.NumFmt
}
// setFills provides function to add fill elements in the styles.xml by given
// cell format settings.
func setFills(style *xlsxStyleSheet, formatCellStyle *formatCellStyle) int {
var patterns = []string{
"none",
"solid",
"mediumGray",
"darkGray",
"lightGray",
"darkHorizontal",
"darkVertical",
"darkDown",
"darkUp",
"darkGrid",
"darkTrellis",
"lightHorizontal",
"lightVertical",
"lightDown",
"lightUp",
"lightGrid",
"lightTrellis",
"gray125",
"gray0625",
}
var variants = []float64{
90,
0,
45,
135,
}
var fill xlsxFill
switch formatCellStyle.Fill.Type {
case "gradient":
if len(formatCellStyle.Fill.Color) != 2 {
break
}
var gradient xlsxGradientFill
switch formatCellStyle.Fill.Shading {
case 0, 1, 2, 3:
gradient.Degree = variants[formatCellStyle.Fill.Shading]
case 4:
gradient.Type = "path"
case 5:
gradient.Type = "path"
gradient.Bottom = 0.5
gradient.Left = 0.5
gradient.Right = 0.5
gradient.Top = 0.5
default:
break
}
var stops []*xlsxGradientFillStop
for index, color := range formatCellStyle.Fill.Color {
var stop xlsxGradientFillStop
stop.Position = float64(index)
stop.Color.RGB = getPaletteColor(color)
stops = append(stops, &stop)
}
gradient.Stop = stops
fill.GradientFill = &gradient
case "pattern":
if formatCellStyle.Fill.Pattern > 18 || formatCellStyle.Fill.Pattern < 0 {
break
}
if len(formatCellStyle.Fill.Color) < 1 {
break
}
var pattern xlsxPatternFill
pattern.PatternType = patterns[formatCellStyle.Fill.Pattern]
pattern.FgColor.RGB = getPaletteColor(formatCellStyle.Fill.Color[0])
fill.PatternFill = &pattern
}
style.Fills.Count++
style.Fills.Fill = append(style.Fills.Fill, &fill)
return style.Fills.Count - 1
}
// setAlignment provides function to formatting information pertaining to text
// alignment in cells. There are a variety of choices for how text is aligned
// both horizontally and vertically, as well as indentation settings, and so on.
func setAlignment(style *xlsxStyleSheet, formatCellStyle *formatCellStyle) (bool, *xlsxAlignment) {
if formatCellStyle.Alignment == nil {
return false, &xlsxAlignment{}
}
var alignment = xlsxAlignment{
Horizontal: formatCellStyle.Alignment.Horizontal,
Indent: formatCellStyle.Alignment.Indent,
JustifyLastLine: formatCellStyle.Alignment.JustifyLastLine,
ReadingOrder: formatCellStyle.Alignment.ReadingOrder,
RelativeIndent: formatCellStyle.Alignment.RelativeIndent,
ShrinkToFit: formatCellStyle.Alignment.ShrinkToFit,
TextRotation: formatCellStyle.Alignment.TextRotation,
Vertical: formatCellStyle.Alignment.Vertical,
WrapText: formatCellStyle.Alignment.WrapText,
}
return true, &alignment
}
// setBorders provides function to add border elements in the styles.xml by
// given borders format settings.
func setBorders(style *xlsxStyleSheet, formatCellStyle *formatCellStyle) int {
var styles = []string{
"none",
"thin",
"medium",
"dashed",
"dotted",
"thick",
"double",
"hair",
"mediumDashed",
"dashDot",
"mediumDashDot",
"dashDotDot",
"mediumDashDotDot",
"slantDashDot",
}
var border xlsxBorder
for _, v := range formatCellStyle.Border {
if v.Style > 13 || v.Style < 0 {
continue
}
var color xlsxColor
color.RGB = getPaletteColor(v.Color)
switch v.Type {
case "left":
border.Left.Style = styles[v.Style]
border.Left.Color = &color
case "right":
border.Right.Style = styles[v.Style]
border.Right.Color = &color
case "top":
border.Top.Style = styles[v.Style]
border.Top.Color = &color
case "bottom":
border.Bottom.Style = styles[v.Style]
border.Bottom.Color = &color
case "diagonalUp":
border.Diagonal.Style = styles[v.Style]
border.Diagonal.Color = &color
border.DiagonalUp = true
case "diagonalDown":
border.Diagonal.Style = styles[v.Style]
border.Diagonal.Color = &color
border.DiagonalDown = true
}
}
style.Borders.Count++
style.Borders.Border = append(style.Borders.Border, &border)
return style.Borders.Count - 1
}
// setCellXfs provides function to set describes all of the formatting for a
// cell.
func setCellXfs(style *xlsxStyleSheet, numFmtID, fillID, borderID int, applyAlignment bool, alignment *xlsxAlignment) int {
var xf xlsxXf
xf.NumFmtID = numFmtID
if numFmtID != 0 {
xf.ApplyNumberFormat = true
}
xf.FillID = fillID
xf.BorderID = borderID
style.CellXfs.Count++
xf.Alignment = alignment
xf.ApplyAlignment = applyAlignment
style.CellXfs.Xf = append(style.CellXfs.Xf, xf)
return style.CellXfs.Count - 1
}
// setCellStyle provides function to add style attribute for cells by given
// sheet index, coordinate area and style ID.
func (f *File) setCellStyle(sheet, hcell, vcell string, styleID int) {
hcell = strings.ToUpper(hcell)
vcell = strings.ToUpper(vcell)
// Coordinate conversion, convert C1:B3 to 2,0,1,2.
hcol := string(strings.Map(letterOnlyMapF, hcell))
hrow, _ := strconv.Atoi(strings.Map(intOnlyMapF, hcell))
hyAxis := hrow - 1
hxAxis := titleToNumber(hcol)
vcol := string(strings.Map(letterOnlyMapF, vcell))
vrow, _ := strconv.Atoi(strings.Map(intOnlyMapF, vcell))
vyAxis := vrow - 1
vxAxis := titleToNumber(vcol)
if vxAxis < hxAxis {
hcell, vcell = vcell, hcell
vxAxis, hxAxis = hxAxis, vxAxis
}
if vyAxis < hyAxis {
hcell, vcell = vcell, hcell
vyAxis, hyAxis = hyAxis, vyAxis
}
// Correct the coordinate area, such correct C1:B3 to B1:C3.
hcell = toAlphaString(hxAxis+1) + strconv.Itoa(hyAxis+1)
vcell = toAlphaString(vxAxis+1) + strconv.Itoa(vyAxis+1)
xlsx := f.workSheetReader(sheet)
completeRow(xlsx, vxAxis+1, vyAxis+1)
completeCol(xlsx, vxAxis+1, vyAxis+1)
for r, row := range xlsx.SheetData.Row {
for k, c := range row.C {
if checkCellInArea(c.R, hcell+":"+vcell) {
xlsx.SheetData.Row[r].C[k].S = styleID
}
}
}
}
// getPaletteColor provides function to convert the RBG color by given string.
func getPaletteColor(color string) string {
return "FF" + strings.Replace(strings.ToUpper(color), "#", "", -1)
}