python: Multi Document Interface (MDI) Application using Pmw

 

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# encoding: utf-8 # 版权所有 2024 涂聚文有限公司 # 许可信息查看：言語成了邀功盡責的功臣，還需要行爲每日來值班嗎 # 描述：pip install Pmw #  https://www.slac.stanford.edu/grp/cd/soft/pmw/starting.html #  https://www.slac.stanford.edu/grp/cd/soft/pmw/howtouse.html #  https://pmw.sourceforge.net/doc/index.html # Author    : geovindu,Geovin Du 涂聚文. # IDE       : PyCharm 2023.1 python 3.11 # os        : windows 10 # database  : mysql 9.0 sql server 2019, poostgreSQL 17.0 # Datetime  : 2024/12/7 7:15 # User      : geovindu # Product   : PyCharm # Project   : Pysimple # File      : pwmmdi.py # explain   : 学习 import tkinter as tk import Pmw from Pmw.Pmw_2_1_1.lib.PmwNoteBook import NoteBook       # Model class NotebookModel:     """     """     def __init__(self):         self.pages = []        def add_page(self, page_name):         """         :param page_name:         :return:         """         self.pages.append(page_name)        def remove_page(self, page_name):         """         :param page_name:         :return:         """            self.pages.remove(page_name)        def get_page_names(self):         """         :return:         """         return self.pages[:]    # View class NotebookView:     """     """     def __init__(self, root, model):         """         :param root:         :param model:         """         self.root = root         self.model = model         self.notebook = NoteBook(root)         self.notebook.pack(fill="both", expand=True)            # Initialize with existing pages         for page_name in self.model.get_page_names():             self.create_page(page_name)        def create_page(self, page_name):         """         :param page_name:         :return:         """            page_frame = self.notebook.add(page_name)         widget = tk.Frame(page_frame)         widget.pack(fill='both', expand=1, padx=10, pady=10)         label = tk.Label(widget, text=f"This is {page_name}")         label.pack(pady=10)            close_button = tk.Button(widget, text="Close", command=lambda: self.close_page(page_name))         close_button.pack(side=tk.RIGHT, padx=10, pady=10)        def close_page(self, page_name):         """         :param page_name:         :return:         """            self.notebook.delete(page_name)         self.model.remove_page(page_name)        def update_view(self):         """         :return:         """         current_pages = set(self.model.get_page_names())         displayed_pages = set(self.notebook.pagenames())   #self.notebook.getcurselection()            # Add missing pages         for page_name in current_pages - displayed_pages:             self.create_page(page_name)    # Controller class NotebookController:     """     """     def __init__(self, root, model, view):         self.root = root         self.model = model         self.view = view            # Create menu bar         menubar = tk.Menu(root)         filemenu = tk.Menu(menubar, tearoff=0)         filemenu.add_command(label="New", command=self._on_new_page)         filemenu.add_separator()         filemenu.add_command(label="Exit", command=root.quit)         menubar.add_cascade(label="File", menu=filemenu)         root.config(menu=menubar)        def _on_new_page(self):         """         :return:         """         page_name = f"New Window {len(self.model.get_page_names()) + 1}"         self.model.add_page(page_name)         self.view.update_view()    # Main application entry point def main():     """           :return:     """     root = tk.Tk()     root.title("MDI Example with MVC")        model = NotebookModel()     view = NotebookView(root, model)     controller = NotebookController(root, model, view)        # Initially update the view to match the model     view.update_view()        root.mainloop()    if __name__ == "__main__":     main()