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109 lines
2.9 KiB
109 lines
2.9 KiB
// Copyright 2016 - 2019 The excelize Authors. All rights reserved. Use of
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// this source code is governed by a BSD-style license that can be found in
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// the LICENSE file.
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//
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// Package excelize providing a set of functions that allow you to write to
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// and read from XLSX files. Support reads and writes XLSX file generated by
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// Microsoft Excel™ 2007 and later. Support save file without losing original
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// charts of XLSX. This library needs Go version 1.10 or later.
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package excelize
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import "strings"
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// GetMergeCells provides a function to get all merged cells from a worksheet
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// currently.
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func (f *File) GetMergeCells(sheet string) ([]MergeCell, error) {
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var mergeCells []MergeCell
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xlsx, err := f.workSheetReader(sheet)
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if err != nil {
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return mergeCells, err
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}
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if xlsx.MergeCells != nil {
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mergeCells = make([]MergeCell, 0, len(xlsx.MergeCells.Cells))
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for i := range xlsx.MergeCells.Cells {
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ref := xlsx.MergeCells.Cells[i].Ref
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axis := strings.Split(ref, ":")[0]
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val, _ := f.GetCellValue(sheet, axis)
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mergeCells = append(mergeCells, []string{ref, val})
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}
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}
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return mergeCells, err
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}
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// UnmergeCell provides a function to unmerge a given coordinate area.
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// For example unmerge area D3:E9 on Sheet1:
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//
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// err := f.UnmergeCell("Sheet1", "D3", "E9")
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//
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// Attention: overlapped areas will also be unmerged.
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func (f *File) UnmergeCell(sheet string, hcell, vcell string) error {
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xlsx, err := f.workSheetReader(sheet)
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if err != nil {
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return err
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}
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coordinates, err := f.areaRefToCoordinates(hcell + ":" + vcell)
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if err != nil {
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return err
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}
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x1, y1, x2, y2 := coordinates[0], coordinates[1], coordinates[2], coordinates[3]
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if x2 < x1 {
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x1, x2 = x2, x1
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}
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if y2 < y1 {
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y1, y2 = y2, y1
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}
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hcell, _ = CoordinatesToCellName(x1, y1)
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vcell, _ = CoordinatesToCellName(x2, y2)
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// return nil since no MergeCells in the sheet
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if xlsx.MergeCells == nil {
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return nil
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}
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ref := hcell + ":" + vcell
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i := 0
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for _, cellData := range xlsx.MergeCells.Cells {
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cc := strings.Split(cellData.Ref, ":")
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c1, _ := checkCellInArea(hcell, cellData.Ref)
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c2, _ := checkCellInArea(vcell, cellData.Ref)
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c3, _ := checkCellInArea(cc[0], ref)
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c4, _ := checkCellInArea(cc[1], ref)
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// skip the overlapped mergecell
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if c1 || c2 || c3 || c4 {
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continue
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}
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xlsx.MergeCells.Cells[i] = cellData
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i++
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}
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xlsx.MergeCells.Cells = xlsx.MergeCells.Cells[:i]
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return nil
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}
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// MergeCell define a merged cell data.
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// It consists of the following structure.
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// example: []string{"D4:E10", "cell value"}
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type MergeCell []string
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// GetCellValue returns merged cell value.
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func (m *MergeCell) GetCellValue() string {
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return (*m)[1]
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}
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// GetStartAxis returns the merge start axis.
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// example: "C2"
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func (m *MergeCell) GetStartAxis() string {
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axis := strings.Split((*m)[0], ":")
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return axis[0]
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}
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// GetEndAxis returns the merge end axis.
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// example: "D4"
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func (m *MergeCell) GetEndAxis() string {
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axis := strings.Split((*m)[0], ":")
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return axis[1]
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}
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