Is it possible to add a function to automatically add headers?

edit

Okay, could you help me take a look at this plugin I wrote? It works fine, but there is one issue. For example, if the header information has 5 lines, when the scrollbar scrolls to exactly show the 5th line, activating the plugin to update the header information will cause the scrollbar to automatically scroll to display the entire header, instead of staying at the 5th line position. If the plugin is activated to update when the header is not visible, there is no problem.

#!/usr/bin/env python3
# -*- coding:utf-8 -*-
######################################################################
########################### yang's header ############################
######################################################################
# File:                                                autoheader.py #
# Create Data:                                   2026/02/28 11:22:14 #
# Author:                                                       xxxx #
# Email:                                            xxxx@hotmail.com #
# Last Modified:                                 2026/05/22 11:52:19 #
# Modified By:                                                 xxxXx #
# Copyright (c) 2025 xxxx Culture Media Co., Ltd                     #
######################################################################


import wingapi
import copy
import datetime
import platform
import subprocess
from pathlib import Path

app = wingapi.gApplication
_plugin_id = [None]
_preSaveId = [None]
_fileType = ['.py']


class header():
    def __init__(self, doc):
        # chars
        self.commentChar = "#"
        self.aroundChar = " "
        self.filler = " "  # space
        # attributes
        self.docObj = doc
        self.title = "Comment"
        self.fileNameLabel = "File:"
        self.fileName = ""
        self.fullFileName = ""
        self.emailLabel = "Email:"
        self.email = ""
        self.createTimeLabel = "Create Data:"
        self.modifyDataLabel = "Last Modified:"
        self.modifyByLabel = "Modified By:"
        self.modifyBy = ""
        self.authorLabel = "Author:"
        self.author = ""
        self.copyRightLine = ""
        # lines
        self.lines = {"preLines": [], "startLines": [], "titleLines": [], "bodyLines": [], "endLines": [], "postLines": [], }
        self.actualLines = {}
        self.bodyLines = []
        # controls
        self.maxChar = 70  # if less than bodyLine length, use length of bodyLine.
        self.bodyLineMax = self.maxChar
        self.withFullName = False
        self.lastSpaceLineCount = 2
        self.withStartLine = True
        self.withTitleLine = True

    def setheader(self):
        self.updateHeader()
        f = self.docObj.GetAsFileObject()
        charCount = 0
        # check preLines
        for preLine in self.actualLines["preLines"]:
            docLine = f.readline()
            if docLine.rstrip("\n") != preLine:
                print("preLines is different, insert all.")
                self.docObj.InsertChars(0, str(self))
                return True
            charCount += len(docLine)
        # check startLines
        if self.withStartLine:
            for startLine in self.actualLines["startLines"]:
                docLine = f.readline()
                if docLine.rstrip("\n") != startLine:
                    print("startLines is different, insert all.")
                    self.docObj.InsertChars(0, str(self))
                    return True
                charCount += len(docLine)
        # check ...