qax-os#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
+	rowOpts                 RowOpts
 }
 
 // Next will return true if find the next row element.
@@ -101,6 +102,17 @@ func (rows *Rows) Next() bool {
 					rows.curRow = rowNum
 				}
 				rows.token = token
+				ro := RowOpts{}
+				if styleID, err := attrValToInt("s", xmlElement.Attr); err == nil && styleID > 0 && styleID < MaxCellStyles {
+					ro.StyleID = styleID
+				}
+				if hidden, err := attrValToBool("hidden", xmlElement.Attr); err == nil {
+					ro.Hidden = hidden
+				}
+				if height, err := attrValToFloat("ht", xmlElement.Attr); err == nil {
+					ro.Height = height
+				}
+				rows.rowOpts = ro
 				return true
 			}
 		case xml.EndElement:
@@ -111,6 +123,13 @@ func (rows *Rows) Next() bool {
 	}
 }
 
+// GetStyleID will return the RowOpts of the current row.
+//
+//    rowOpts := rows.GetRowOpts()
+func (rows *Rows) GetRowOpts() RowOpts {
+	return rows.rowOpts
+}
+
 // Error will return the error when the error occurs.
 func (rows *Rows) Error() error {
 	return rows.err

rows_test.go

@@ -96,6 +96,28 @@ func TestRowsIterator(t *testing.T) {
 	assert.Equal(t, expectedNumRow, rowCount)
 }
 
+func TestRowsGetRowOpts(t *testing.T) {
+	sheetName := "Sheet2"
+	expectedRowStyleID1 := RowOpts{Height: 17.0, Hidden: false, StyleID: 1}
+	expectedRowStyleID2 := RowOpts{Height: 17.0, Hidden: false, StyleID: 0}
+	expectedRowStyleID3 := RowOpts{Height: 17.0, Hidden: false, StyleID: 2}
+	f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
+	require.NoError(t, err)
+
+	rows, err := f.Rows(sheetName)
+	require.NoError(t, err)
+
+	rows.Next()
+	got := rows.GetRowOpts()
+	assert.Equal(t, expectedRowStyleID1, got)
+	rows.Next()
+	got = rows.GetRowOpts()
+	assert.Equal(t, expectedRowStyleID2, got)
+	rows.Next()
+	got = rows.GetRowOpts()
+	assert.Equal(t, expectedRowStyleID3, got)
+}
+
 func TestRowsError(t *testing.T) {
 	f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
 	if !assert.NoError(t, err) {

sheet.go

@@ -928,6 +928,34 @@ func attrValToInt(name string, attrs []xml.Attr) (val int, err error) {
 	return
 }
 
+// attrValToFloat provides a function to convert the local names to a float64
+// by given XML attributes and specified names.
+func attrValToFloat(name string, attrs []xml.Attr) (val float64, err error) {
+	for _, attr := range attrs {
+		if attr.Name.Local == name {
+			val, err = strconv.ParseFloat(attr.Value, 64)
+			if err != nil {
+				return
+			}
+		}
+	}
+	return
+}
+
+// attrValToBool provides a function to convert the local names to a boot
+// by given XML attributes and specified names.
+func attrValToBool(name string, attrs []xml.Attr) (val bool, err error) {
+	for _, attr := range attrs {
+		if attr.Name.Local == name {
+			val, err = strconv.ParseBool(attr.Value)
+			if err != nil {
+				return
+			}
+		}
+	}
+	return
+}
+
 // SetHeaderFooter provides a function to set headers and footers by given
 // worksheet name and the control characters.
 //

xmlDrawing.go

@@ -107,6 +107,7 @@ const (
 	MaxFieldLength       = 255
 	MaxColumnWidth       = 255
 	MaxRowHeight         = 409
+	MaxCellStyles        = 64000
 	MinFontSize          = 1
 	TotalRows            = 1048576
 	MinColumns           = 1