python模拟IG报文发送界面--Apple的学习笔记

python GUI ttk库 -- Apple的学习笔记里面我提到还要学习下treeview控件，已经入门并且找到了after方法可以进行周期更新。另外觉得布局不方便，今天找到了布局的解决方案，可以用frame一个个group打包，此时可以用pack。然后在frame内可以用grid进行各个子控件的位置处理。按这样的分类及分层管理，几百个控件的布局都没问题，哈哈~
做了个雏形，进行可行性调研摸底，还算是顺利！

image.png

动态效果

IG.gif

源码

from tkinter import *
from tkinter.ttk import *
from tkinter.messagebox import *
class IGBox():
    """use a ttk.TreeView as a multicolumn ListBox"""
    def __init__(self,table_header = None,table_list = None):
        self.table_header = table_header
        self.table_list = table_list
        self.tree = None
        self.txtTag = []
        self.varlist=[]
        self._setup_widgets()
        self._build_tree()


    def _setup_widgets(self):
        self.container = Frame()
        self.container.pack(side=TOP,fill='both')
        self.containerInfo = Frame()
        self.containerInfo.pack(side=BOTTOM,fill=X)   # fill X is important
        # create a treeview with dual scrollbars
        self.tree = Treeview(self.container,columns=self.table_header, show="headings")
        self.tree.grid(column=0, row=0,padx=5)
        self.vsb = Scrollbar(self.container,orient="vertical",
            command=self.tree.yview)
        self.hsb = Scrollbar(self.container,orient="horizontal",
            command=self.tree.xview)
        self.vsb.grid(column=1, row=0, sticky='ns')
        self.hsb.grid(column=0, row=1, sticky='ew')

        Button(self.containerInfo, text="send",width=5, command=self.update_table).grid(row=1, column=3, sticky='w')
        self.checkVar = StringVar(value="0")
        self.cycle = Checkbutton(self.containerInfo, text="cycle", variable=self.checkVar,command = self.cyclechange)
        self.cycle.grid(row=1,column=5,sticky=W)
        self.cyctimer = Entry(self.containerInfo, width=5)
        self.cyctimer.grid(row=1, column=6, sticky=E,pady=5)
        # label settings
        for index, lbitem in enumerate(("ID","LEN","DATA")):
            tempwidth = 5
            if(lbitem == "DATA"):
                tempwidth = 20
            self.tag = Label(self.containerInfo,text=lbitem,width=tempwidth)
            self.tag.grid(row=0,column=index,sticky=W,padx=5)
        # text settings
        for index in range(0,3):
            tempwidth = 5
            if(index == 2):
                tempwidth = 20
            self.txtTag.append("txt_" + str(index))  # save obj name to list
            self.txtTag[index] = Entry(self.containerInfo,width=tempwidth)
            self.txtTag[index].grid(row=1, column=index, sticky=E,pady=5,padx=5)  # position

    def cyclechange(self):
        print(self.checkVar.get())
        if(self.checkVar.get()=="1"):
            self.get_data()
            self.tree.insert('', 'end', values=(self.varlist))
            self.varlist.clear()
            self.tree.after(self.cyctimer.get(), self.cyclechange)

    def _build_tree(self):
        for col in self.table_header:
            self.tree.heading(col, text=col.title())
            self.tree.column(col, width=80)
        self.tree.column('DATA', width=200)

        for item in self.table_list:
            self.tree.insert('', 'end', values=item)

    def _rebuild_tree(self):
        self.tree.configure(columns=self.table_header)
        self._build_tree()

    def get_data(self):
        for index in range(0, 3):
            var=self.txtTag[index].get()
            print(var)
            if(len(var)<=0):
                showinfo(title='Info', message="Wrong input!")
                return
            else:
                self.varlist.append(var)

    def update_table(self):
        self.get_data()
        self.tree.insert('', 'end', values=(self.varlist))
        self.varlist.clear()

if __name__ == "__main__" :
    car_header = ['ID', 'LEN','DATA']
    car_list = [
        ('0x100', '8',"01 02 03 04 05 06 07 08") ,
        ('0x111', '8',"11 22 33 44 55 66 77 88")
    ]
    root = Tk()
    root.title("IG Sim")
    root.geometry('420x300')
    IGBox(table_header=car_header,table_list=car_list)
    root.mainloop()