forked from p30928647/excelize
82 lines
1.9 KiB
Go
82 lines
1.9 KiB
Go
package excelize
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import (
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"archive/zip"
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"bytes"
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"fmt"
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"io"
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"os"
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)
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// NewFile provides function to create new file by default template. For
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// example:
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//
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// xlsx := NewFile()
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//
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func NewFile() *File {
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file := make(map[string]string)
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file["_rels/.rels"] = XMLHeader + templateRels
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file["docProps/app.xml"] = XMLHeader + templateDocpropsApp
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file["docProps/core.xml"] = XMLHeader + templateDocpropsCore
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file["xl/_rels/workbook.xml.rels"] = XMLHeader + templateWorkbookRels
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file["xl/theme/theme1.xml"] = XMLHeader + templateTheme
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file["xl/worksheets/sheet1.xml"] = XMLHeader + templateSheet
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file["xl/styles.xml"] = XMLHeader + templateStyles
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file["xl/workbook.xml"] = XMLHeader + templateWorkbook
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file["[Content_Types].xml"] = XMLHeader + templateContentTypes
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return &File{
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Sheet: make(map[string]*xlsxWorksheet),
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XLSX: file,
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}
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}
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// Save provides function to override the xlsx file with origin path.
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func (f *File) Save() error {
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if f.Path == "" {
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return fmt.Errorf("No path defined for file, consider File.WriteTo or File.Write")
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}
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return f.SaveAs(f.Path)
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}
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// SaveAs provides function to create or update to an xlsx file at the provided
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// path.
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func (f *File) SaveAs(name string) error {
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file, err := os.OpenFile(name, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0666)
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if err != nil {
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return err
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}
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defer file.Close()
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return f.Write(file)
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}
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// Write provides function to write to an io.Writer.
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func (f *File) Write(w io.Writer) error {
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buf := new(bytes.Buffer)
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zw := zip.NewWriter(buf)
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f.contentTypesWriter()
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f.workbookWriter()
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f.workbookRelsWriter()
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f.worksheetWriter()
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f.styleSheetWriter()
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for path, content := range f.XLSX {
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fi, err := zw.Create(path)
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if err != nil {
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return err
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}
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_, err = fi.Write([]byte(content))
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if err != nil {
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return err
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}
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}
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err := zw.Close()
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if err != nil {
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return err
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}
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if _, err := buf.WriteTo(w); err != nil {
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return err
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}
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return nil
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}
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