forked from p30928647/excelize
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
// 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 1.8 or later.
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package excelize
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import "encoding/xml"
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// calcChainReader provides a function to get the pointer to the structure
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// after deserialization of xl/calcChain.xml.
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func (f *File) calcChainReader() *xlsxCalcChain {
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if f.CalcChain == nil {
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var c xlsxCalcChain
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_ = xml.Unmarshal(namespaceStrictToTransitional(f.readXML("xl/calcChain.xml")), &c)
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f.CalcChain = &c
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}
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return f.CalcChain
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}
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// calcChainWriter provides a function to save xl/calcChain.xml after
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// serialize structure.
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func (f *File) calcChainWriter() {
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if f.CalcChain != nil {
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output, _ := xml.Marshal(f.CalcChain)
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f.saveFileList("xl/calcChain.xml", output)
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}
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}
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// deleteCalcChain provides a function to remove cell reference on the
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// calculation chain.
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func (f *File) deleteCalcChain(axis string) {
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calc := f.calcChainReader()
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if calc != nil {
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for i, c := range calc.C {
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if c.R == axis {
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calc.C = append(calc.C[:i], calc.C[i+1:]...)
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}
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}
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}
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if len(calc.C) == 0 {
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f.CalcChain = nil
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delete(f.XLSX, "xl/calcChain.xml")
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content := f.contentTypesReader()
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for k, v := range content.Overrides {
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if v.PartName == "/xl/calcChain.xml" {
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content.Overrides = append(content.Overrides[:k], content.Overrides[k+1:]...)
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}
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}
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}
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}
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