service/vendor/github.com/xuri/excelize/v2/adjust.go

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2023-12-21 22:17:40 +08:00
// Copyright 2016 - 2023 The excelize Authors. All rights reserved. Use of
// this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
//
// Package excelize providing a set of functions that allow you to write to and
// read from XLAM / XLSM / XLSX / XLTM / XLTX files. Supports reading and
// writing spreadsheet documents generated by Microsoft Excel™ 2007 and later.
// Supports complex components by high compatibility, and provided streaming
// API for generating or reading data from a worksheet with huge amounts of
// data. This library needs Go version 1.16 or later.
package excelize
import (
"bytes"
"encoding/xml"
"io"
"strings"
)
type adjustDirection bool
const (
columns adjustDirection = false
rows adjustDirection = true
)
// adjustHelper provides a function to adjust rows and columns dimensions,
// hyperlinks, merged cells and auto filter when inserting or deleting rows or
// columns.
//
// sheet: Worksheet name that we're editing
// column: Index number of the column we're inserting/deleting before
// row: Index number of the row we're inserting/deleting before
// offset: Number of rows/column to insert/delete negative values indicate deletion
//
// TODO: adjustPageBreaks, adjustComments, adjustDataValidations, adjustProtectedCells
func (f *File) adjustHelper(sheet string, dir adjustDirection, num, offset int) error {
ws, err := f.workSheetReader(sheet)
if err != nil {
return err
}
sheetID := f.getSheetID(sheet)
if dir == rows {
err = f.adjustRowDimensions(ws, num, offset)
} else {
err = f.adjustColDimensions(ws, num, offset)
}
if err != nil {
return err
}
f.adjustHyperlinks(ws, sheet, dir, num, offset)
f.adjustTable(ws, sheet, dir, num, offset)
if err = f.adjustMergeCells(ws, dir, num, offset); err != nil {
return err
}
if err = f.adjustAutoFilter(ws, dir, num, offset); err != nil {
return err
}
if err = f.adjustCalcChain(dir, num, offset, sheetID); err != nil {
return err
}
ws.checkSheet()
_ = ws.checkRow()
if ws.MergeCells != nil && len(ws.MergeCells.Cells) == 0 {
ws.MergeCells = nil
}
return nil
}
// adjustCols provides a function to update column style when inserting or
// deleting columns.
func (f *File) adjustCols(ws *xlsxWorksheet, col, offset int) error {
if ws.Cols == nil {
return nil
}
for i := 0; i < len(ws.Cols.Col); i++ {
if offset > 0 {
if ws.Cols.Col[i].Max+1 == col {
ws.Cols.Col[i].Max += offset
continue
}
if ws.Cols.Col[i].Min >= col {
ws.Cols.Col[i].Min += offset
ws.Cols.Col[i].Max += offset
continue
}
if ws.Cols.Col[i].Min < col && ws.Cols.Col[i].Max >= col {
ws.Cols.Col[i].Max += offset
}
}
if offset < 0 {
if ws.Cols.Col[i].Min == col && ws.Cols.Col[i].Max == col {
if len(ws.Cols.Col) > 1 {
ws.Cols.Col = append(ws.Cols.Col[:i], ws.Cols.Col[i+1:]...)
} else {
ws.Cols.Col = nil
}
i--
continue
}
if ws.Cols.Col[i].Min > col {
ws.Cols.Col[i].Min += offset
ws.Cols.Col[i].Max += offset
continue
}
if ws.Cols.Col[i].Min <= col && ws.Cols.Col[i].Max >= col {
ws.Cols.Col[i].Max += offset
}
}
}
return nil
}
// adjustColDimensions provides a function to update column dimensions when
// inserting or deleting rows or columns.
func (f *File) adjustColDimensions(ws *xlsxWorksheet, col, offset int) error {
for rowIdx := range ws.SheetData.Row {
for _, v := range ws.SheetData.Row[rowIdx].C {
if cellCol, _, _ := CellNameToCoordinates(v.R); col <= cellCol {
if newCol := cellCol + offset; newCol > 0 && newCol > MaxColumns {
return ErrColumnNumber
}
}
}
}
for rowIdx := range ws.SheetData.Row {
for colIdx, v := range ws.SheetData.Row[rowIdx].C {
if cellCol, cellRow, _ := CellNameToCoordinates(v.R); col <= cellCol {
if newCol := cellCol + offset; newCol > 0 {
ws.SheetData.Row[rowIdx].C[colIdx].R, _ = CoordinatesToCellName(newCol, cellRow)
_ = f.adjustFormula(ws.SheetData.Row[rowIdx].C[colIdx].F, columns, offset, false)
}
}
}
}
return f.adjustCols(ws, col, offset)
}
// adjustRowDimensions provides a function to update row dimensions when
// inserting or deleting rows or columns.
func (f *File) adjustRowDimensions(ws *xlsxWorksheet, row, offset int) error {
totalRows := len(ws.SheetData.Row)
if totalRows == 0 {
return nil
}
lastRow := &ws.SheetData.Row[totalRows-1]
if newRow := lastRow.R + offset; lastRow.R >= row && newRow > 0 && newRow >= TotalRows {
return ErrMaxRows
}
for i := 0; i < len(ws.SheetData.Row); i++ {
r := &ws.SheetData.Row[i]
if newRow := r.R + offset; r.R >= row && newRow > 0 {
f.adjustSingleRowDimensions(r, newRow, offset, false)
}
}
return nil
}
// adjustSingleRowDimensions provides a function to adjust single row dimensions.
func (f *File) adjustSingleRowDimensions(r *xlsxRow, num, offset int, si bool) {
r.R = num
for i, col := range r.C {
colName, _, _ := SplitCellName(col.R)
r.C[i].R, _ = JoinCellName(colName, num)
_ = f.adjustFormula(col.F, rows, offset, si)
}
}
// adjustFormula provides a function to adjust shared formula reference.
func (f *File) adjustFormula(formula *xlsxF, dir adjustDirection, offset int, si bool) error {
if formula != nil && formula.Ref != "" {
coordinates, err := rangeRefToCoordinates(formula.Ref)
if err != nil {
return err
}
if dir == columns {
coordinates[0] += offset
coordinates[2] += offset
} else {
coordinates[1] += offset
coordinates[3] += offset
}
if formula.Ref, err = f.coordinatesToRangeRef(coordinates); err != nil {
return err
}
if si && formula.Si != nil {
formula.Si = intPtr(*formula.Si + 1)
}
}
return nil
}
// adjustHyperlinks provides a function to update hyperlinks when inserting or
// deleting rows or columns.
func (f *File) adjustHyperlinks(ws *xlsxWorksheet, sheet string, dir adjustDirection, num, offset int) {
// short path
if ws.Hyperlinks == nil || len(ws.Hyperlinks.Hyperlink) == 0 {
return
}
// order is important
if offset < 0 {
for i := len(ws.Hyperlinks.Hyperlink) - 1; i >= 0; i-- {
linkData := ws.Hyperlinks.Hyperlink[i]
colNum, rowNum, _ := CellNameToCoordinates(linkData.Ref)
if (dir == rows && num == rowNum) || (dir == columns && num == colNum) {
f.deleteSheetRelationships(sheet, linkData.RID)
if len(ws.Hyperlinks.Hyperlink) > 1 {
ws.Hyperlinks.Hyperlink = append(ws.Hyperlinks.Hyperlink[:i],
ws.Hyperlinks.Hyperlink[i+1:]...)
} else {
ws.Hyperlinks = nil
}
}
}
}
if ws.Hyperlinks == nil {
return
}
for i := range ws.Hyperlinks.Hyperlink {
link := &ws.Hyperlinks.Hyperlink[i] // get reference
colNum, rowNum, _ := CellNameToCoordinates(link.Ref)
if dir == rows {
if rowNum >= num {
link.Ref, _ = CoordinatesToCellName(colNum, rowNum+offset)
}
} else {
if colNum >= num {
link.Ref, _ = CoordinatesToCellName(colNum+offset, rowNum)
}
}
}
}
// adjustTable provides a function to update the table when inserting or
// deleting rows or columns.
func (f *File) adjustTable(ws *xlsxWorksheet, sheet string, dir adjustDirection, num, offset int) {
if ws.TableParts == nil || len(ws.TableParts.TableParts) == 0 {
return
}
for idx := 0; idx < len(ws.TableParts.TableParts); idx++ {
tbl := ws.TableParts.TableParts[idx]
target := f.getSheetRelationshipsTargetByID(sheet, tbl.RID)
tableXML := strings.ReplaceAll(target, "..", "xl")
content, ok := f.Pkg.Load(tableXML)
if !ok {
continue
}
t := xlsxTable{}
if err := f.xmlNewDecoder(bytes.NewReader(namespaceStrictToTransitional(content.([]byte)))).
Decode(&t); err != nil && err != io.EOF {
return
}
coordinates, err := rangeRefToCoordinates(t.Ref)
if err != nil {
return
}
// Remove the table when deleting the header row of the table
if dir == rows && num == coordinates[0] {
ws.TableParts.TableParts = append(ws.TableParts.TableParts[:idx], ws.TableParts.TableParts[idx+1:]...)
ws.TableParts.Count = len(ws.TableParts.TableParts)
idx--
continue
}
coordinates = f.adjustAutoFilterHelper(dir, coordinates, num, offset)
x1, y1, x2, y2 := coordinates[0], coordinates[1], coordinates[2], coordinates[3]
if y2-y1 < 1 || x2-x1 < 0 {
ws.TableParts.TableParts = append(ws.TableParts.TableParts[:idx], ws.TableParts.TableParts[idx+1:]...)
ws.TableParts.Count = len(ws.TableParts.TableParts)
idx--
continue
}
t.Ref, _ = f.coordinatesToRangeRef([]int{x1, y1, x2, y2})
if t.AutoFilter != nil {
t.AutoFilter.Ref = t.Ref
}
_, _ = f.setTableHeader(sheet, true, x1, y1, x2)
table, _ := xml.Marshal(t)
f.saveFileList(tableXML, table)
}
}
// adjustAutoFilter provides a function to update the auto filter when
// inserting or deleting rows or columns.
func (f *File) adjustAutoFilter(ws *xlsxWorksheet, dir adjustDirection, num, offset int) error {
if ws.AutoFilter == nil {
return nil
}
coordinates, err := rangeRefToCoordinates(ws.AutoFilter.Ref)
if err != nil {
return err
}
x1, y1, x2, y2 := coordinates[0], coordinates[1], coordinates[2], coordinates[3]
if (dir == rows && y1 == num && offset < 0) || (dir == columns && x1 == num && x2 == num) {
ws.AutoFilter = nil
for rowIdx := range ws.SheetData.Row {
rowData := &ws.SheetData.Row[rowIdx]
if rowData.R > y1 && rowData.R <= y2 {
rowData.Hidden = false
}
}
return err
}
coordinates = f.adjustAutoFilterHelper(dir, coordinates, num, offset)
x1, y1, x2, y2 = coordinates[0], coordinates[1], coordinates[2], coordinates[3]
ws.AutoFilter.Ref, err = f.coordinatesToRangeRef([]int{x1, y1, x2, y2})
return err
}
// adjustAutoFilterHelper provides a function for adjusting auto filter to
// compare and calculate cell reference by the given adjust direction, operation
// reference and offset.
func (f *File) adjustAutoFilterHelper(dir adjustDirection, coordinates []int, num, offset int) []int {
if dir == rows {
if coordinates[1] >= num {
coordinates[1] += offset
}
if coordinates[3] >= num {
coordinates[3] += offset
}
return coordinates
}
if coordinates[0] >= num {
coordinates[0] += offset
}
if coordinates[2] >= num {
coordinates[2] += offset
}
return coordinates
}
// adjustMergeCells provides a function to update merged cells when inserting
// or deleting rows or columns.
func (f *File) adjustMergeCells(ws *xlsxWorksheet, dir adjustDirection, num, offset int) error {
if ws.MergeCells == nil {
return nil
}
for i := 0; i < len(ws.MergeCells.Cells); i++ {
mergedCells := ws.MergeCells.Cells[i]
mergedCellsRef := mergedCells.Ref
if !strings.Contains(mergedCellsRef, ":") {
mergedCellsRef += ":" + mergedCellsRef
}
coordinates, err := rangeRefToCoordinates(mergedCellsRef)
if err != nil {
return err
}
x1, y1, x2, y2 := coordinates[0], coordinates[1], coordinates[2], coordinates[3]
if dir == rows {
if y1 == num && y2 == num && offset < 0 {
f.deleteMergeCell(ws, i)
i--
continue
}
y1, y2 = f.adjustMergeCellsHelper(y1, y2, num, offset)
} else {
if x1 == num && x2 == num && offset < 0 {
f.deleteMergeCell(ws, i)
i--
continue
}
x1, x2 = f.adjustMergeCellsHelper(x1, x2, num, offset)
}
if x1 == x2 && y1 == y2 {
f.deleteMergeCell(ws, i)
i--
continue
}
mergedCells.rect = []int{x1, y1, x2, y2}
if mergedCells.Ref, err = f.coordinatesToRangeRef([]int{x1, y1, x2, y2}); err != nil {
return err
}
}
return nil
}
// adjustMergeCellsHelper provides a function for adjusting merge cells to
// compare and calculate cell reference by the given pivot, operation reference and
// offset.
func (f *File) adjustMergeCellsHelper(p1, p2, num, offset int) (int, int) {
if p2 < p1 {
p1, p2 = p2, p1
}
if offset >= 0 {
if num <= p1 {
p1 += offset
p2 += offset
} else if num <= p2 {
p2 += offset
}
return p1, p2
}
if num < p1 || (num == p1 && num == p2) {
p1 += offset
p2 += offset
} else if num <= p2 {
p2 += offset
}
return p1, p2
}
// deleteMergeCell provides a function to delete merged cell by given index.
func (f *File) deleteMergeCell(ws *xlsxWorksheet, idx int) {
if idx < 0 {
return
}
if len(ws.MergeCells.Cells) > idx {
ws.MergeCells.Cells = append(ws.MergeCells.Cells[:idx], ws.MergeCells.Cells[idx+1:]...)
ws.MergeCells.Count = len(ws.MergeCells.Cells)
}
}
// adjustCalcChain provides a function to update the calculation chain when
// inserting or deleting rows or columns.
func (f *File) adjustCalcChain(dir adjustDirection, num, offset, sheetID int) error {
if f.CalcChain == nil {
return nil
}
for index, c := range f.CalcChain.C {
if c.I != sheetID {
continue
}
colNum, rowNum, err := CellNameToCoordinates(c.R)
if err != nil {
return err
}
if dir == rows && num <= rowNum {
if newRow := rowNum + offset; newRow > 0 {
f.CalcChain.C[index].R, _ = CoordinatesToCellName(colNum, newRow)
}
}
if dir == columns && num <= colNum {
if newCol := colNum + offset; newCol > 0 {
f.CalcChain.C[index].R, _ = CoordinatesToCellName(newCol, rowNum)
}
}
}
return nil
}