Initialize comments support & go test updated.

comment.go

+package excelize
+
+import (
+	"encoding/json"
+	"encoding/xml"
+	"strconv"
+	"strings"
+)
+
+// parseFormatCommentsSet provides function to parse the format settings of the
+// comment with default value.
+func parseFormatCommentsSet(formatSet string) *formatComment {
+	format := formatComment{
+		Author: "Author:",
+		Text:   " ",
+	}
+	json.Unmarshal([]byte(formatSet), &format)
+	return &format
+}
+
+// AddComment provides the method to add comment in a sheet by given worksheet
+// index, cell and format set (such as author and text). For example, add a
+// comment in Sheet1!$A$30:
+//
+//    xlsx.AddComment("Sheet1", "A30", `{"author":"Excelize","text":"This is a comment."}`)
+//
+func (f *File) AddComment(sheet, cell, format string) {
+	formatSet := parseFormatCommentsSet(format)
+	// Read sheet data.
+	xlsx := f.workSheetReader(sheet)
+	commentID := f.countComments() + 1
+	drawingVML := "xl/drawings/vmlDrawing" + strconv.Itoa(commentID) + ".vml"
+	sheetRelationshipsComments := "../comments" + strconv.Itoa(commentID) + ".xml"
+	sheetRelationshipsDrawingVML := "../drawings/vmlDrawing" + strconv.Itoa(commentID) + ".vml"
+	if xlsx.LegacyDrawing != nil {
+		// The worksheet already has a comments relationships, use the relationships drawing ../drawings/vmlDrawing%d.vml.
+		sheetRelationshipsDrawingVML = f.getSheetRelationshipsTargetByID(sheet, xlsx.LegacyDrawing.RID)
+		commentID, _ = strconv.Atoi(strings.TrimSuffix(strings.TrimPrefix(sheetRelationshipsDrawingVML, "../drawings/vmlDrawing"), ".vml"))
+		drawingVML = strings.Replace(sheetRelationshipsDrawingVML, "..", "xl", -1)
+	} else {
+		// Add first comment for given sheet.
+		rID := f.addSheetRelationships(sheet, SourceRelationshipDrawingVML, sheetRelationshipsDrawingVML, "")
+		f.addSheetRelationships(sheet, SourceRelationshipComments, sheetRelationshipsComments, "")
+		f.addSheetLegacyDrawing(sheet, rID)
+	}
+	commentsXML := "xl/comments" + strconv.Itoa(commentID) + ".xml"
+	f.addComment(commentsXML, cell, formatSet)
+	f.addDrawingVML(commentID, drawingVML, cell)
+	f.addCommentsContentTypePart(commentID)
+}
+
+// addDrawingVML provides function to create comment as
+// xl/drawings/vmlDrawing%d.vml by given commit ID and cell.
+func (f *File) addDrawingVML(commentID int, drawingVML, cell string) {
+	col := string(strings.Map(letterOnlyMapF, cell))
+	row, _ := strconv.Atoi(strings.Map(intOnlyMapF, cell))
+	xAxis := row - 1
+	yAxis := titleToNumber(col)
+	vml := vmlDrawing{
+		XMLNSv:  "urn:schemas-microsoft-com:vml",
+		XMLNSo:  "urn:schemas-microsoft-com:office:office",
+		XMLNSx:  "urn:schemas-microsoft-com:office:excel",
+		XMLNSmv: "http://macVmlSchemaUri",
+		Shapelayout: &xlsxShapelayout{
+			Ext: "edit",
+			IDmap: &xlsxIDmap{
+				Ext:  "edit",
+				Data: commentID,
+			},
+		},
+		Shapetype: &xlsxShapetype{
+			ID:        "_x0000_t202",
+			Coordsize: "21600,21600",
+			Spt:       202,
+			Path:      "m0,0l0,21600,21600,21600,21600,0xe",
+			Stroke: &xlsxStroke{
+				Joinstyle: "miter",
+			},
+			VPath: &vPath{
+				Gradientshapeok: "t",
+				Connecttype:     "rect",
+			},
+		},
+	}
+	sp := encodeShape{
+		Fill: &vFill{
+			Color2: "#fbfe82",
+			Angle:  -180,
+			Type:   "gradient",
+			Fill: &oFill{
+				Ext:  "view",
+				Type: "gradientUnscaled",
+			},
+		},
+		Shadow: &vShadow{
+			On:       "t",
+			Color:    "black",
+			Obscured: "t",
+		},
+		Path: &vPath{
+			Connecttype: "none",
+		},
+		Textbox: &vTextbox{
+			Style: "mso-direction-alt:auto",
+			Div: &xlsxDiv{
+				Style: "text-align:left",
+			},
+		},
+		ClientData: &xClientData{
+			ObjectType: "Note",
+			Anchor:     "3, 15, 8, 6, 4, 54, 13, 2",
+			AutoFill:   "False",
+			Row:        xAxis,
+			Column:     yAxis,
+		},
+	}
+	s, _ := xml.Marshal(sp)
+	shape := xlsxShape{
+		ID:          "_x0000_s1025",
+		Type:        "#_x0000_t202",
+		Style:       "position:absolute;73.5pt;width:108pt;height:59.25pt;z-index:1;visibility:hidden",
+		Fillcolor:   "#fbf6d6",
+		Strokecolor: "#edeaa1",
+		Val:         string(s[13 : len(s)-14]),
+	}
+	c, ok := f.XLSX[drawingVML]
+	if ok {
+		d := decodeVmlDrawing{}
+		xml.Unmarshal([]byte(c), &d)
+		for _, v := range d.Shape {
+			s := xlsxShape{
+				ID:          "_x0000_s1025",
+				Type:        "#_x0000_t202",
+				Style:       "position:absolute;73.5pt;width:108pt;height:59.25pt;z-index:1;visibility:hidden",
+				Fillcolor:   "#fbf6d6",
+				Strokecolor: "#edeaa1",
+				Val:         v.Val,
+			}
+			vml.Shape = append(vml.Shape, s)
+		}
+	}
+	vml.Shape = append(vml.Shape, shape)
+	v, _ := xml.Marshal(vml)
+	f.XLSX[drawingVML] = string(v)
+}
+
+// addComment provides function to create chart as xl/comments%d.xml by given
+// cell and format sets.
+func (f *File) addComment(commentsXML, cell string, formatSet *formatComment) {
+	comments := xlsxComments{
+		Authors: []xlsxAuthor{
+			xlsxAuthor{
+				Author: formatSet.Author,
+			},
+		},
+	}
+	cmt := xlsxComment{
+		Ref:      cell,
+		AuthorID: 0,
+		Text: xlsxText{
+			R: []xlsxR{
+				xlsxR{
+					RPr: &xlsxRPr{
+						B:  " ",
+						Sz: &attrValInt{Val: 9},
+						Color: &xlsxColor{
+							Indexed: 81,
+						},
+						RFont:  &attrValString{Val: "Calibri"},
+						Family: &attrValInt{Val: 2},
+					},
+					T: formatSet.Author + ": ",
+				},
+				xlsxR{
+					RPr: &xlsxRPr{
+						Sz: &attrValInt{Val: 9},
+						Color: &xlsxColor{
+							Indexed: 81,
+						},
+						RFont:  &attrValString{Val: "Calibri"},
+						Family: &attrValInt{Val: 2},
+					},
+					T: formatSet.Text,
+				},
+			},
+		},
+	}
+	c, ok := f.XLSX[commentsXML]
+	if ok {
+		d := xlsxComments{}
+		xml.Unmarshal([]byte(c), &d)
+		comments.CommentList.Comment = append(comments.CommentList.Comment, d.CommentList.Comment...)
+	}
+	comments.CommentList.Comment = append(comments.CommentList.Comment, cmt)
+	v, _ := xml.Marshal(comments)
+	f.saveFileList(commentsXML, string(v))
+}
+
+// countComments provides function to get comments files count storage in the
+// folder xl.
+func (f *File) countComments() int {
+	count := 0
+	for k := range f.XLSX {
+		if strings.Contains(k, "xl/comments") {
+			count++
+		}
+	}
+	return count
+}

excelize_test.go

@@ -524,6 +524,19 @@ func TestAddShape(t *testing.T) {
 	}
 }
 
+func TestAddComments(t *testing.T) {
+	xlsx, err := OpenFile("./test/Workbook_2.xlsx")
+	if err != nil {
+		t.Log(err)
+	}
+	xlsx.AddComment("Sheet1", "A30", `{"author":"Excelize","text":"This is first comment."}`)
+	xlsx.AddComment("Sheet2", "B7", `{"author":"Excelize","text":"This is second comment."}`)
+	err = xlsx.Save()
+	if err != nil {
+		t.Log(err)
+	}
+}
+
 func TestAddChart(t *testing.T) {
 	xlsx, err := OpenFile("./test/Workbook1.xlsx")
 	if err != nil {

picture.go

@@ -139,6 +139,15 @@ func (f *File) addSheetRelationships(sheet, relType, target, targetMode string)
 	return rID
 }
 
+// addSheetLegacyDrawing provides function to add legacy drawing element to
+// xl/worksheets/sheet%d.xml by given sheet name and relationship index.
+func (f *File) addSheetLegacyDrawing(sheet string, rID int) {
+	xlsx := f.workSheetReader(sheet)
+	xlsx.LegacyDrawing = &xlsxLegacyDrawing{
+		RID: "rId" + strconv.Itoa(rID),
+	}
+}
+
 // addSheetDrawing provides function to add drawing element to
 // xl/worksheets/sheet%d.xml by given sheet name and relationship index.
 func (f *File) addSheetDrawing(sheet string, rID int) {
@@ -308,6 +317,24 @@ func (f *File) setContentTypePartImageExtensions() {
 	}
 }
 
+// setContentTypePartVMLExtensions provides function to set the content type
+// for relationship parts and the Main Document part.
+func (f *File) setContentTypePartVMLExtensions() {
+	vml := false
+	content := f.contentTypesReader()
+	for _, v := range content.Defaults {
+		if v.Extension == "vml" {
+			vml = true
+		}
+	}
+	if !vml {
+		content.Defaults = append(content.Defaults, xlsxDefault{
+			Extension:   "vml",
+			ContentType: "application/vnd.openxmlformats-officedocument.vmlDrawing",
+		})
+	}
+}
+
 // addDrawingContentTypePart provides function to add image part relationships
 // in the file [Content_Types].xml by given drawing index.
 func (f *File) addDrawingContentTypePart(index int) {
@@ -324,6 +351,22 @@ func (f *File) addDrawingContentTypePart(index int) {
 	})
 }
 
+// addCommentsContentTypePart provides function to add comments part
+// relationships in the file [Content_Types].xml by given comment index.
+func (f *File) addCommentsContentTypePart(index int) {
+	f.setContentTypePartVMLExtensions()
+	content := f.contentTypesReader()
+	for _, v := range content.Overrides {
+		if v.PartName == "/xl/comments"+strconv.Itoa(index)+".xml" {
+			return
+		}
+	}
+	content.Overrides = append(content.Overrides, xlsxOverride{
+		PartName:    "/xl/comments" + strconv.Itoa(index) + ".xml",
+		ContentType: "application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml",
+	})
+}
+
 // getSheetRelationshipsTargetByID provides function to get Target attribute
 // value in xl/worksheets/_rels/sheet%d.xml.rels by given sheet name and
 // relationship index.

sheet.go

@@ -418,8 +418,7 @@ func (f *File) CopySheet(from, to int) error {
 // target worksheet index.
 func (f *File) copySheet(from, to int) {
 	sheet := f.workSheetReader("sheet" + strconv.Itoa(from))
-	var worksheet xlsxWorksheet
-	worksheet = *sheet
+	worksheet := *sheet
 	path := "xl/worksheets/sheet" + strconv.Itoa(to) + ".xml"
 	if len(worksheet.SheetViews.SheetView) > 0 {
 		worksheet.SheetViews.SheetView[0].TabSelected = false
@@ -444,7 +443,7 @@ func (f *File) HideSheet(name string) {
 	content := f.workbookReader()
 	count := 0
 	for _, v := range content.Sheets.Sheet {
-		if v.State != "hidden" {
+		if v.State != sheetStateHidden {
 			count++
 		}
 	}
@@ -456,7 +455,7 @@ func (f *File) HideSheet(name string) {
 			tabSelected = xlsx.SheetViews.SheetView[0].TabSelected
 		}
 		if v.Name == name && count > 1 && !tabSelected {
-			content.Sheets.Sheet[k].State = "hidden"
+			content.Sheets.Sheet[k].State = sheetStateHidden
 		}
 	}
 }

vmlDrawing.go

+package excelize
+
+import "encoding/xml"
+
+// vmlDrawing directly maps the root element in the file
+// xl/drawings/vmlDrawing%d.vml.
+type vmlDrawing struct {
+	XMLName     xml.Name         `xml:"xml"`
+	XMLNSv      string           `xml:"xmlns:v,attr"`
+	XMLNSo      string           `xml:"xmlns:o,attr"`
+	XMLNSx      string           `xml:"xmlns:x,attr"`
+	XMLNSmv     string           `xml:"xmlns:mv,attr"`
+	Shapelayout *xlsxShapelayout `xml:"o:shapelayout"`
+	Shapetype   *xlsxShapetype   `xml:"v:shapetype"`
+	Shape       []xlsxShape      `xml:"v:shape"`
+}
+
+// xlsxShapelayout directly maps the shapelayout element. This element contains
+// child elements that store information used in the editing and layout of
+// shapes.
+type xlsxShapelayout struct {
+	Ext   string     `xml:"v:ext,attr"`
+	IDmap *xlsxIDmap `xml:"o:idmap"`
+}
+
+// xlsxIDmap directly maps the idmap element.
+type xlsxIDmap struct {
+	Ext  string `xml:"v:ext,attr"`
+	Data int    `xml:"data,attr"`
+}
+
+// xlsxShape directly maps the shape element.
+type xlsxShape struct {
+	XMLName     xml.Name `xml:"v:shape"`
+	ID          string   `xml:"id,attr"`
+	Type        string   `xml:"type,attr"`
+	Style       string   `xml:"style,attr"`
+	Fillcolor   string   `xml:"fillcolor,attr"`
+	Insetmode   string   `xml:"urn:schemas-microsoft-com:office:office insetmode,attr,omitempty"`
+	Strokecolor string   `xml:"strokecolor,attr,omitempty"`
+	Val         string   `xml:",innerxml"`
+}
+
+// xlsxShapetype directly maps the shapetype element.
+type xlsxShapetype struct {
+	ID        string      `xml:"id,attr"`
+	Coordsize string      `xml:"coordsize,attr"`
+	Spt       int         `xml:"o:spt,attr"`
+	Path      string      `xml:"path,attr"`
+	Stroke    *xlsxStroke `xml:"v:stroke"`
+	VPath     *vPath      `xml:"v:path"`
+}
+
+// xlsxStroke directly maps the stroke element.
+type xlsxStroke struct {
+	Joinstyle string `xml:"joinstyle,attr"`
+}
+
+// vPath directly maps the v:path element.
+type vPath struct {
+	Gradientshapeok string `xml:"gradientshapeok,attr,omitempty"`
+	Connecttype     string `xml:"o:connecttype,attr"`
+}
+
+// vFill directly maps the v:fill element. This element must be defined within a
+// Shape element.
+type vFill struct {
+	Angle  int    `xml:"angle,attr,omitempty"`
+	Color2 string `xml:"color2,attr"`
+	Type   string `xml:"type,attr,omitempty"`
+	Fill   *oFill `xml:"o:fill"`
+}
+
+// oFill directly maps the o:fill element.
+type oFill struct {
+	Ext  string `xml:"v:ext,attr"`
+	Type string `xml:"type,attr,omitempty"`
+}
+
+// vShadow directly maps the v:shadow element. This element must be defined
+// within a Shape element. In addition, the On attribute must be set to True.
+type vShadow struct {
+	On       string `xml:"on,attr"`
+	Color    string `xml:"color,attr,omitempty"`
+	Obscured string `xml:"obscured,attr"`
+}
+
+// vTextbox directly maps the v:textbox element. This element must be defined
+// within a Shape element.
+type vTextbox struct {
+	Style string   `xml:"style,attr"`
+	Div   *xlsxDiv `xml:"div"`
+}
+
+// xlsxDiv directly maps the div element.
+type xlsxDiv struct {
+	Style string `xml:"style,attr"`
+}
+
+// xClientData (Attached Object Data) directly maps the x:ClientData element.
+// This element specifies data associated with objects attached to a
+// spreadsheet. While this element might contain any of the child elements
+// below, only certain combinations are meaningful. The ObjectType attribute
+// determines the kind of object the element represents and which subset of
+// child elements is appropriate. Relevant groups are identified for each child
+// element.
+type xClientData struct {
+	ObjectType    string `xml:"ObjectType,attr"`
+	MoveWithCells string `xml:"x:MoveWithCells,omitempty"`
+	SizeWithCells string `xml:"x:SizeWithCells,omitempty"`
+	Anchor        string `xml:"x:Anchor"`
+	AutoFill      string `xml:"x:AutoFill"`
+	Row           int    `xml:"x:Row"`
+	Column        int    `xml:"x:Column"`
+}
+
+// decodeVmlDrawing defines the structure used to parse the file
+// xl/drawings/vmlDrawing%d.vml.
+type decodeVmlDrawing struct {
+	Shape []decodeShape `xml:"urn:schemas-microsoft-com:vml shape"`
+}
+
+// decodeShape defines the structure used to parse the particular shape element.
+type decodeShape struct {
+	Val string `xml:",innerxml"`
+}
+
+// encodeShape defines the structure used to re-serialization shape element.
+type encodeShape struct {
+	Fill       *vFill       `xml:"v:fill"`
+	Shadow     *vShadow     `xml:"v:shadow"`
+	Path       *vPath       `xml:"v:path"`
+	Textbox    *vTextbox    `xml:"v:textbox"`
+	ClientData *xClientData `xml:"x:ClientData"`
+}

xmlComments.go

+package excelize
+
+import "encoding/xml"
+
+// xlsxComments directly maps the comments element from the namespace
+// http://schemas.openxmlformats.org/spreadsheetml/2006/main. A comment is a
+// rich text note that is attached to and associated with a cell, separate from
+// other cell content. Comment content is stored separate from the cell, and is
+// displayed in a drawing object (like a text box) that is separate from, but
+// associated with, a cell. Comments are used as reminders, such as noting how a
+// complex formula works, or to provide feedback to other users. Comments can
+// also be used to explain assumptions made in a formula or to call out
+// something special about the cell.
+type xlsxComments struct {
+	XMLName     xml.Name        `xml:"http://schemas.openxmlformats.org/spreadsheetml/2006/main comments"`
+	Authors     []xlsxAuthor    `xml:"authors"`
+	CommentList xlsxCommentList `xml:"commentList"`
+}
+
+// xlsxAuthor directly maps the author element. This element holds a string
+// representing the name of a single author of comments. Every comment shall
+// have an author. The maximum length of the author string is an implementation
+// detail, but a good guideline is 255 chars.
+type xlsxAuthor struct {
+	Author string `xml:"author"`
+}
+
+// xlsxCommentList (List of Comments) directly maps the xlsxCommentList element.
+// This element is a container that holds a list of comments for the sheet.
+type xlsxCommentList struct {
+	Comment []xlsxComment `xml:"comment"`
+}
+
+// xlsxComment directly maps the comment element. This element represents a
+// single user entered comment. Each comment shall have an author and can
+// optionally contain richly formatted text.
+type xlsxComment struct {
+	Ref      string   `xml:"ref,attr"`
+	AuthorID int      `xml:"authorId,attr"`
+	Text     xlsxText `xml:"text"`
+}
+
+// xlsxText directly maps the text element. This element contains rich text
+// which represents the text of a comment. The maximum length for this text is a
+// spreadsheet application implementation detail. A recommended guideline is
+// 32767 chars.
+type xlsxText struct {
+	R []xlsxR `xml:"r"`
+}
+
+// formatComment directly maps the format settings of the comment.
+type formatComment struct {
+	Author string `json:"author"`
+	Text   string `json:"text"`
+}

xmlDrawing.go

@@ -6,9 +6,11 @@ import "encoding/xml"
 const (
 	SourceRelationship              = "http://schemas.openxmlformats.org/officeDocument/2006/relationships"
 	SourceRelationshipChart         = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chart"
+	SourceRelationshipComments      = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/comments"
 	SourceRelationshipImage         = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image"
 	SourceRelationshipTable         = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/table"
 	SourceRelationshipDrawingML     = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/drawing"
+	SourceRelationshipDrawingVML    = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing"
 	SourceRelationshipHyperLink     = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink"
 	SourceRelationshipWorkSheet     = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet"
 	SourceRelationshipChart201506   = "http://schemas.microsoft.com/office/drawing/2015/06/chart"

xmlSharedStrings.go

@@ -28,5 +28,19 @@ type xlsxSI struct {
 // http://schemas.openxmlformats.org/spreadsheetml/2006/main - currently I have
 // not checked this for completeness - it does as much as I need.
 type xlsxR struct {
-	T string `xml:"t"`
+	RPr *xlsxRPr `xml:"rPr"`
+	T   string   `xml:"t"`
+}
+
+// xlsxRPr (Run Properties) 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 xlsxRPr struct {
+	B      string         `xml:"b,omitempty"`
+	Sz     *attrValInt    `xml:"sz"`
+	Color  *xlsxColor     `xml:"color"`
+	RFont  *attrValString `xml:"rFont"`
+	Family *attrValInt    `xml:"family"`
 }

xmlStyles.go

@@ -52,8 +52,8 @@ type xlsxLine struct {
 type xlsxColor struct {
 	Auto    bool    `xml:"auto,attr,omitempty"`
 	RGB     string  `xml:"rgb,attr,omitempty"`
-	Indexed *int    `xml:"indexed,attr,omitempty"`
-	Theme   *int    `xml:"theme,attr,omitempty"`
+	Indexed int     `xml:"indexed,attr,omitempty"`
+	Theme   int     `xml:"theme,attr,omitempty"`
 	Tint    float64 `xml:"tint,attr,omitempty"`
 }