Skip to content

TSaveTextFileDialogDemo 项目分析

项目信息

文件结构

TSaveTextFileDialogDemo/
├── Extractor_Icon.ico
├── Project1.py
├── Project1.xml
├── Unit1.py
├── Unit1.pydfm
├── Unit1.sct
├── Unit1.sfm

主程序文件: Project1.py

from glcl import *
from Unit1 import *

def main():
    Application.Initialize()
    Application.Title = 'Project1'
    Application.MainFormOnTaskbar = True
    Application.Icon.LoadFromFile(os.path.join(os.path.dirname(os.path.abspath(__file__)), "Extractor_Icon.ico"))
    MainForm = Form1(Application)
    MainForm.Show()
    FreeConsole()
    Application.Run()
    MainForm.Free()

if __name__ == '__main__':
    main()

单元文件: Unit1.py

import os
from glcl import *

class Form1(Form):

    def __init__(self, owner):
        self.Button1 = Button(self)
        self.Memo1 = Memo(self)
        self.SaveTextFileDialog1 = SaveTextFileDialog(self)
        self.LoadProps(os.path.join(os.path.dirname(os.path.abspath(__file__)), "Unit1.pydfm"))
        self.Button1.OnClick = self.Button1Click

        # 创建一个按钮用于打开保存文件对话框
        self.save_button = Button(self)
        self.save_button.Parent = self  # 设置父控件为窗体
        self.save_button.Caption = "Save Text File"  # 按钮上的文本
        self.save_button.SetBounds(150, 80, 150, 30)  # 设置按钮的位置和大小

        # 为按钮设置点击事件处理程序
        self.save_button.OnClick = self.save_file_dialog

    def save_file_dialog(self, Sender):
        # 创建保存文本文件对话框
        dialog = SaveTextFileDialog(self)

        # 设置对话框的标题
        dialog.Title = "Save Text File"

        # 设置默认的文件名
        dialog.FileName = "document.txt"

        # 设置过滤器，仅显示文本文件
        dialog.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*"

        # 显示对话框并检查用户是否点击了“确定”
        if dialog.Execute():
            # 获取用户选择的文件名
            selected_file = dialog.FileName

            # 打开文件并写入示例内容
            with open(selected_file, 'w') as file:
                file.write("Hello, this is a sample text file!")  # 写入内容到文件

            # 显示所选文件名，以确认文件已保存
            ShowMessage(f"File saved: {selected_file}")

    def Button1Click(self, Sender):
        if self.SaveTextFileDialog1.Execute():
            self.Memo1.Lines.SaveToFile(self.SaveTextFileDialog1.FileName)

设计文件: Unit1.sct

def Button1Click(Sender):

设计文件: Unit1.sfm

object Form1: TForm
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 279
  ClientWidth = 355
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -15
  Font.Name = 'Segoe UI'
  Font.Style = []
  TextHeight = 20
  object Memo1: TMemo
    Left = 8
    Top = 88
    Width = 337
    Height = 145
    Lines.Strings = (
      '*** Python 3.12.4 (heads/master-dirty:9c62cab, Jun '
      ' 9 2024, 14:50:38) [MSC v.1940 64 bit (AMD64)] on '
      'win32. ***'
      '*** '#36828#31243' Python '#24341#25806#21551#21160' ***')
    TabOrder = 0
  end
  object Button1: TButton
    Left = 270
    Top = 240
    Width = 75
    Height = 25
    Caption = 'Button1'
    TabOrder = 1
    OnClick = Button1Click
  end
  object SaveTextFileDialog1: TSaveTextFileDialog
    Left = 232
    Top = 240
  end
end

其他文件

  • Extractor_Icon.ico
  • Project1.xml

详细分析

功能概述

对话框组件演示

使用的组件

  • Form1 (TForm)
  • Memo1 (TMemo)
  • Button1 (TButton)
  • SaveTextFileDialog1 (TSaveTextFileDialog)

技术特点

  • 包含4个GUI组件
  • 定义2个事件处理

窗体属性

  • caption: Button1
  • height: 279
  • width: 355

代码分析

导入的模块: - import os - from glcl import *

定义的类: - Form1

定义的方法: - init - save_file_dialog - Button1Click

事件绑定: - self.Button1.OnClick = self.Button1Click - self.save_button.OnClick = self.save_file_dialog