From 9928bbc7c80dc9b3ab6599b9e472c2e00936ae84 Mon Sep 17 00:00:00 2001
From: Ri Xu <xuri.me@gmail.com>
Date: Thu, 15 Jun 2017 11:03:29 +0800
Subject: [PATCH] - New functions `GetColVisible()` and `SetColVisible()`
 added, relate issue #61; - go test updated; - Fix typo

---
 col.go           | 53 ++++++++++++++++++++++++++++++++++++++++++++++++
 excelize_test.go | 20 ++++++++++++++++++
 table.go         |  2 +-
 3 files changed, 74 insertions(+), 1 deletion(-)

diff --git a/col.go b/col.go
index cb1c3b4..66e28b8 100644
--- a/col.go
+++ b/col.go
@@ -13,6 +13,59 @@ const (
 	EMU                    int = 9525
 )
 
+// GetColVisible provides a function to get visible of a single column by given
+// worksheet index and column name. For example, get visible state of column D
+// in Sheet1:
+//
+//    xlsx.GetColVisible("Sheet1", "D")
+//
+func (f *File) GetColVisible(sheet, column string) bool {
+	xlsx := f.workSheetReader(sheet)
+	col := titleToNumber(strings.ToUpper(column)) + 1
+	visible := true
+	if xlsx.Cols == nil {
+		return visible
+	}
+	for _, c := range xlsx.Cols.Col {
+		if c.Min <= col && col <= c.Max {
+			visible = !c.Hidden
+		}
+	}
+	return visible
+}
+
+// SetColVisible provides a function to set visible of a single column by given
+// worksheet index and column name. For example, hide column D in Sheet1:
+//
+//    xlsx.SetColVisible("Sheet1", "D", false)
+//
+func (f *File) SetColVisible(sheet, column string, visible bool) {
+	xlsx := f.workSheetReader(sheet)
+	c := titleToNumber(strings.ToUpper(column)) + 1
+	col := xlsxCol{
+		Min:         c,
+		Max:         c,
+		Hidden:      !visible,
+		CustomWidth: true,
+	}
+	if xlsx.Cols == nil {
+		cols := xlsxCols{}
+		cols.Col = append(cols.Col, col)
+		xlsx.Cols = &cols
+		return
+	}
+	for _, v := range xlsx.Cols.Col {
+		if v.Min <= c && c <= v.Max {
+			col = v
+		}
+	}
+	col.Min = c
+	col.Max = c
+	col.Hidden = !visible
+	col.CustomWidth = true
+	xlsx.Cols.Col = append(xlsx.Cols.Col, col)
+}
+
 // SetColWidth provides function to set the width of a single column or multiple
 // columns. For example:
 //
diff --git a/excelize_test.go b/excelize_test.go
index 027d9f8..93b6f91 100644
--- a/excelize_test.go
+++ b/excelize_test.go
@@ -492,6 +492,26 @@ func TestRowVisibility(t *testing.T) {
 	}
 }
 
+func TestColumnVisibility(t *testing.T) {
+	xlsx, err := OpenFile("./test/Workbook_2.xlsx")
+	if err != nil {
+		t.Log(err)
+	}
+	xlsx.SetColVisible("Sheet1", "F", false)
+	xlsx.SetColVisible("Sheet1", "F", true)
+	xlsx.GetColVisible("Sheet1", "F")
+	xlsx.SetColVisible("Sheet3", "E", false)
+	err = xlsx.Save()
+	if err != nil {
+		t.Log(err)
+	}
+	xlsx, err = OpenFile("./test/Workbook_3.xlsx")
+	if err != nil {
+		t.Log(err)
+	}
+	xlsx.GetColVisible("Sheet1", "B")
+}
+
 func TestCopySheet(t *testing.T) {
 	xlsx, err := OpenFile("./test/Workbook_2.xlsx")
 	if err != nil {
diff --git a/table.go b/table.go
index a713e39..72f9a9a 100644
--- a/table.go
+++ b/table.go
@@ -297,7 +297,7 @@ func (f *File) autoFilter(sheet, ref string, refRange, hxAxis int, formatSet *fo
 	return nil
 }
 
-// writeAutoFilter provides funtion to check for single or double custom filters
+// writeAutoFilter provides function to check for single or double custom filters
 // as default filters and handle them accordingly.
 func (f *File) writeAutoFilter(filter *xlsxAutoFilter, exp []int, tokens []string) {
 	if len(exp) == 1 && exp[0] == 2 {