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TActivityIndicatorDemo 项目分析

项目信息

文件结构

TActivityIndicatorDemo/
├── 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.Button2 = Button(self)
        self.Button1 = Button(self)
        self.ActivityIndicator1 = ActivityIndicator(self)
        self.LoadProps(os.path.join(os.path.dirname(os.path.abspath(__file__)), "Unit1.pydfm"))
        self.Button2.OnClick = self.Button2Click
        self.Button1.OnClick = self.Button1Click
        # 可以设置ActivityIndicator的IndicatorType变换不同效果

        # 创建一个 TActivityIndicator 控件
        self.activity_indicator = ActivityIndicator(self)
        self.activity_indicator.Parent = self   # 设置父控件为窗体
        self.activity_indicator.Left = 10       # 设置左边距离
        self.activity_indicator.Top = 10        # 设置顶边距离

        # 启动活动指示器
        self.activity_indicator.Animate = True  # 设置启用动画

        # 添加一个按钮来停止活动指示器
        self.stop_button = Button(self)
        self.stop_button.Parent = self          # 设置父控件为窗体
        self.stop_button.Caption = '停止'       # 设置标题
        self.stop_button.SetBounds(10, 50, 100, 30)     # 设置位置和宽高

        # 为按钮点击事件绑定处理函数
        self.stop_button.OnClick = self.stop_activity_indicator

    # 定义停止活动指示器的函数
    def stop_activity_indicator(self, Sender):
        self.activity_indicator.Animate = False  # 停止活动指示器
        ShowMessage('活动指示器已停止')  # 显示消息框

    def Button1Click(self, Sender):
        self.ActivityIndicator1.Animate = True

    def Button2Click(self, Sender):
        self.ActivityIndicator1.Animate = False

设计文件: Unit1.sct

def Button1Click(Sender): 
def Button2Click(Sender):

设计文件: Unit1.sfm

object Form1: TForm
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 151
  ClientWidth = 206
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -15
  Font.Name = 'Segoe UI'
  Font.Style = []
  TextHeight = 20
  object ActivityIndicator1: TActivityIndicator
    Left = 8
    Top = 88
    IndicatorType = aitSectorRing
  end
  object Button1: TButton
    Left = 48
    Top = 88
    Width = 75
    Height = 25
    Caption = #21551#29992
    TabOrder = 1
    OnClick = Button1Click
  end
  object Button2: TButton
    Left = 48
    Top = 120
    Width = 75
    Height = 25
    Caption = #20572#29992
    TabOrder = 2
    OnClick = Button2Click
  end
end

其他文件

  • Extractor_Icon.ico
  • Project1.xml

详细分析

功能概述

GUI组件演示

使用的组件

  • Form1 (TForm)
  • ActivityIndicator1 (TActivityIndicator)
  • Button1 (TButton)
  • Button2 (TButton)

技术特点

  • 包含4个GUI组件
  • 定义3个事件处理

窗体属性

  • caption: #20572#29992
  • height: 151
  • width: 206

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 - stop_activity_indicator - Button1Click - Button2Click

事件绑定: - self.Button2.OnClick = self.Button2Click - self.Button1.OnClick = self.Button1Click - self.stop_button.OnClick = self.stop_activity_indicator