#! /usr/bin/env python
# -*- coding: utf-8 -*-
class Base(object):
    def __init__(self, desc):
        self.name = self.__class__.__name__ + ' (' + desc + ')'
        self.obj_list = []
    def do(self):
        print(self.name)
        for obj in self.obj_list:
            obj.do()
        return
    def add(self, obj):
        self.obj_list.append(obj)
        return
class WinForm(Base):
    def __init__(self, desc):
        super(WinForm, self).__init__(desc)
class Picture(Base):
    def __init__(self, desc):
        super(Picture, self).__init__(desc)
class Button(Base):
    def __init__(self, desc):
        super(Button, self).__init__(desc)
class Frame(Base):
    def __init__(self, desc):
        super(Frame, self).__init__(desc)
class Label(Base):
    def __init__(self, desc):
        super(Label, self).__init__(desc)
class TextBox(Base):
    def __init__(self, desc):
        super(TextBox, self).__init__(desc)
class CheckBox(Base):
    def __init__(self, desc):
        super(CheckBox, self).__init__(desc)
class LinkLabel(Base):
    def __init__(self, desc):
        super(LinkLabel, self).__init__(desc)
def main():
    # 构造frame
    frame = Frame('frame1')
    frame.add(Label('用户名'))
    frame.add(TextBox('文本框'))
    frame.add(Label('密码'))
    frame.add(TextBox('密码框'))
    frame.add(CheckBox('复选框'))
    frame.add(TextBox('记住用户名'))
    frame.add(TextBox('忘记密码'))
    # 构造window
    w = WinForm('Window窗口')
    w.add(Picture('Logo图片'))
    w.add(Button('登录'))
    w.add(Button('注册'))
    w.add(frame)
    # 生成: 如果有必要，子类可以重写父类的do方法
    w.do()
if __name__ == '__main__':
    main()