unioffice/_examples/document/use-template/main.go

package main

import (
	"fmt"
	"log"

	"baliance.com/gooxml/document"
)

var lorem = `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin lobortis, lectus dictum feugiat tempus, sem neque finibus enim, sed eleifend sem nunc ac diam. Vestibulum tempus sagittis elementum`

func main() {
	// When Word saves a document, it removes all unused styles.  This means to
	// copy the styles from an existing document, you must first create a
	// document that contains text in each style of interest.  As an example,
	// see the template.docx in this directory.  It contains a paragraph set in
	// each style that Word supports by default.
	doc, err := document.OpenTemplate("template.docx")
	if err != nil {
		log.Fatalf("error opening Windows Word 2016 document: %s", err)
	}

	// We can now print out all styles in the document, verifying that they
	// exist.
	for _, s := range doc.Styles.ParagraphStyles() {
		fmt.Println("style", s.Name(), "has ID of", s.StyleID())
	}

	// And create documents setting their style to the style ID (not style name).
	para := doc.AddParagraph()
	para.SetStyle("Title")
	para.AddRun().AddText("My Document Title")

	para = doc.AddParagraph()
	para.SetStyle("Subtitle")
	para.AddRun().AddText("Document Subtitle")

	para = doc.AddParagraph()
	para.SetStyle("Heading1")
	para.AddRun().AddText("Major Section")
	para = doc.AddParagraph()
	para = doc.AddParagraph()
	for i := 0; i < 4; i++ {
		para.AddRun().AddText(lorem)
	}

	para = doc.AddParagraph()
	para.SetStyle("Heading2")
	para.AddRun().AddText("Minor Section")
	para = doc.AddParagraph()
	for i := 0; i < 4; i++ {
		para.AddRun().AddText(lorem)
	}

	doc.SaveToFile("use-template.docx")
}