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TFileSaveDialogDemo 项目分析

项目信息

文件结构

TFileSaveDialogDemo/
├── 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.Memo1 = Memo(self)
        self.Button1 = Button(self)
        self.FileSaveDialog1 = FileSaveDialog(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.button = Button(self)
        self.button.Parent = self                 # 设置父控件为当前窗体
        self.button.Caption = 'Save File'         # 按钮标题
        self.button.Left = 150                    # 设置按钮的左侧位置
        self.button.Top = 50                       # 设置按钮的顶部位置
        self.button.OnClick = self.save_file_dialog  # 设置按钮点击事件处理程序

        # 创建一个标签用于显示所选文件的路径
        self.label = Label(self)
        self.label.Parent = self                  # 设置父控件为当前窗体
        self.label.Left = 10                      # 设置标签的左侧位置
        self.label.Top = self.button.Top + 30     # 设置标签的顶部位置，位于按钮下方
        self.label.Caption = 'Saved File: '       # 标签标题

    # 打开文件保存对话框的处理函数
    def save_file_dialog(self, Sender):
        # 创建文件保存对话框实例
        dialog = FileSaveDialog(self)
        dialog.Title = 'Save a File'              # 对话框标题

        # 显示对话框并检查用户是否指定了文件名
        if dialog.Execute():
            saved_file = dialog.FileName            # 获取所选保存文件的路径
            self.label.Caption = f'Saved File: {saved_file}'  # 更新标签内容

    def Button1Click(self, Sender):
        if self.FileSaveDialog1.Execute():
            self.Memo1.Lines.SaveToFile(self.FileSaveDialog1.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 = 265
  ClientWidth = 382
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -15
  Font.Name = 'Segoe UI'
  Font.Style = []
  TextHeight = 20
  object Button1: TButton
    Left = 294
    Top = 224
    Width = 75
    Height = 25
    Caption = #20445#23384#25991#20214
    TabOrder = 0
    OnClick = Button1Click
  end
  object Memo1: TMemo
    Left = 16
    Top = 128
    Width = 353
    Height = 89
    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 = 1
  end
  object FileSaveDialog1: TFileSaveDialog
    FavoriteLinks = <>
    FileTypes = <>
    Options = []
    Left = 256
    Top = 224
  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)
  • Button1 (TButton)
  • Memo1 (TMemo)
  • FileSaveDialog1 (TFileSaveDialog)

技术特点

  • 包含4个GUI组件
  • 定义2个事件处理

窗体属性

  • caption: #20445#23384#25991#20214
  • height: 265
  • width: 382

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.button.OnClick = self.save_file_dialog # 设置按钮点击事件处理程序