#1296 add GetStyleID to Rows

Signed-off-by: Thomas Charbonnel <github@charbonnel.email>

rows.go

@@ -80,6 +80,7 @@ type Rows struct {
 	sst                     *xlsxSST
 	decoder                 *xml.Decoder
 	token                   xml.Token
+	styleID                 int
 }
 
 // Next will return true if find the next row element.
@@ -101,6 +102,9 @@ func (rows *Rows) Next() bool {
 					rows.curRow = rowNum
 				}
 				rows.token = token
+				if styleID, _ := attrValToInt("s", xmlElement.Attr); styleID != 0 {
+					rows.styleID = styleID
+				}
 				return true
 			}
 		case xml.EndElement:
@@ -111,6 +115,14 @@ func (rows *Rows) Next() bool {
 	}
 }
 
+// GetStyleID provise a function to get the current Rows' style ID. It will
+// return 0 when no style has been set.
+//
+//    styleID := rows.GetStyleID()
+func (rows *Rows) GetStyleID() int {
+	return rows.styleID
+}
+
 // Error will return the error when the error occurs.
 func (rows *Rows) Error() error {
 	return rows.err

rows_test.go

@@ -96,6 +96,19 @@ func TestRowsIterator(t *testing.T) {
 	assert.Equal(t, expectedNumRow, rowCount)
 }
 
+func TestRowsGetStyleID(t *testing.T) {
+	sheetName, expectedRowStyleID := "Sheet2", 1
+	f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
+	require.NoError(t, err)
+
+	rows, err := f.Rows(sheetName)
+	require.NoError(t, err)
+	rows.Next()
+	rowStyleID := rows.GetStyleID()
+
+	assert.Equal(t, expectedRowStyleID, rowStyleID)
+}
+
 func TestRowsError(t *testing.T) {
 	f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
 	if !assert.NoError(t, err) {