记事本的开发---Tkinter的使用

短命女 2021-09-13 23:00 424阅读 0赞

#coding:utf-8
    __author__ = 'xshengjing'
    
    from Tkinter import *
    from tkMessageBox import *
    from tkFileDialog import *
    import os
    file_name = ""
    
    def search():
        top_search = Toplevel(root)
        #top_search.geometry("300*30+20+250")
        label_01 = Label(top_search,text="Find")
        label_01.grid(row=0,column=0,padx=5)
        entry_01 = Entry(top_search,width=20)
        entry_01.grid(row=0,column=1,padx=5)
        button_01 = Button(top_search,text="查找")
        button_01.grid(row=0,column=2)
    
    def anthor():
        showinfo("作者信息","本软件由小徐完成")
    
    def about():
        showinfo("版权信息.Copyright","本软件版权归小徐所有")
    
    def open_file():
        global file_name
        file_name = askopenfilename(defaultextension=".txt")
        if file_name == "":
            file_name = None
        else:
            root.title("FileName:" + os.path.basename(file_name))
            text_pad.delete(1.0,END)
            f = open(file_name,"r")
            text_pad.insert(1.0,f.read())
            f.close()
    
    def cut():
        text_pad.event_generate("<<Cut>>")
    
    def copy():
        text_pad.event_generate("<<Copy>>")
    
    def paste():
        text_pad.event_generate("<<Paste>>")
    
    def redo():
        text_pad.event_generate("<<Redo>>")
    
    def undo():
        text_pad.event_generate("<<Undo>>")
    
    def select_all():
        text_pad.tag_add('sel','1.0',END)
    
    def new():
        global file_name
        root.title("未命名文件")
        file_name = None
        text_pad.delete(1.0,END)
    
    def save():
        global file_name
        try:
            f = open(file_name,"w")
            msg = text_pad.get(1.0,END)
            f.write(msg)
            f.close()
        except:
            save_as()
    
    
    def save_as():
        f = asksaveasfilename(initialfil="未命名.txt",defaultextension=".txt")
        global file_name
        file_name = f
        fh = open(f,"w")
        msg = text_pad.get(1.0,END)
        fh.write(msg)
        fh.close()
        root.title("FileName:" + os.path.basename(f))
    
    root = Tk()
    root.title("小徐记事本")
    #root.geometry("500*500+100+100")
    menubar = Menu(root)
    
    # create a pulldown menu, and add it to the menu bar
    filemenu = Menu(menubar, tearoff=0)
    filemenu.add_command(label="新建", accelerator="Ctrl + N",command=new)
    filemenu.add_command(label="打开", accelerator="Ctrl + N",command=open_file)
    filemenu.add_command(label="保存", accelerator="Ctrl + S",command=save)
    filemenu.add_command(label="另存为", accelerator="Ctrl + Shift + S",command=save_as)
    filemenu.add_command(label="退出", command=root.quit)
    menubar.add_cascade(label="文件", menu=filemenu)
    
    # create more pulldown menus
    editmenu = Menu(menubar)
    editmenu.add_command(label="撤销", accelerator="Ctrl + Z",command=undo)
    editmenu.add_command(label="重做", accelerator="Ctrl + Y",command=redo)
    editmenu.add_separator()
    editmenu.add_command(label="剪切", accelerator="Ctrl + X",command=cut)
    editmenu.add_command(label="复制", accelerator="Ctrl + C",command=copy)
    editmenu.add_command(label="黏贴", accelerator="Ctrl + V",command=paste)
    editmenu.add_separator()
    editmenu.add_command(label="查找", accelerator="Ctrl + F",command=search)
    editmenu.add_command(label="全选", accelerator="Ctrl + A",command=select_all)
    menubar.add_cascade(label="编辑", menu=editmenu)
    
    aboutmenu = Menu(menubar, tearoff=0)
    aboutmenu.add_command(label="作者",command=anthor)
    aboutmenu.add_command(label="版权",command=about)
    menubar.add_cascade(label="关于", menu=aboutmenu)
    root.config(menu=menubar)
    
    toolbar = Frame(root,height=25,bg="light sea green")
    short_button = Button(toolbar,text="打开",command= open_file)
    short_button.pack(side=LEFT,padx=5,pady=5)
    
    short_button = Button(toolbar,text="保存")
    short_button.pack(side=LEFT)
    toolbar.pack(expand=NO,fill=X)
    
    status = Label(root,text="Ln20",bd=1,relief=SUNKEN,anchor=W)
    status.pack(side=BOTTOM,fill=X)
    
    #显示行号
    lnlabel = Label(root,width=2,bg='antique white')
    lnlabel.pack(side=LEFT,fill=Y)
    
    text_pad = Text(root,undo=True)
    text_pad.pack(expand=YES,fill=BOTH)
    
    scroll = Scrollbar(text_pad)
    text_pad.config(yscrollcommand=scroll.set)
    scroll.config(command=text_pad.yview)
    scroll.pack(side=RIGHT,fill=Y)
    
    
    root.mainloop()