这次是要求treeview的每一行对应一个多选按钮，功能：1.勾选按钮，tree对应的行就会改变颜色2.点击tree的行，按钮也相应的被打勾3.全选按钮会根据 下面多选按钮的情况，改变状态！代码要点：1.操作滚动条时，对应移动的是tree+按钮，所以得用canvas，还得设定<MouseWheel>！！2.因为是tree整体滚动，所得还得另外设定一个头(label) PS:如果能把tree的heading去掉就更好了！3.格式问题===得设定tree每一行的高度，跟button相同；设定tree的字体，还有背景颜色设定canvas的高度随tree高度而改变4.按钮跟tree的行对应，匹配，设定回调函数5.tree的每一项被选中时，就改变其颜色
from tkinter import *
from tkinter.ttk import *
class My_Tk():def __init__(self):self.tk=Tk()self.tk.geometry('620x400')self.orm={}self.create_button()self.create_heading()self.create_tv()mainloop()def create_button(self):Button(self.tk,text='增加数据',command=self.insert_tv).pack()def create_heading(self,):'''重新做一个treeview的头，不然滚动滚动条，看不到原先的头！！！'''heading_frame=Frame(self.tk)heading_frame.pack(fill=X)#填充用button_frame=Label(heading_frame,width=0.5)button_frame.pack(side=LEFT,)#全选按钮self.all_buttonvar = IntVar()self.all_button = Checkbutton(heading_frame, text='',variable=self.all_buttonvar, command=self.select_all)self.all_button.pack(side=LEFT)self.all_buttonvar.set(0)self.columns = ['日期', '楼房', '房号', '房租', '发送详情']self.widths = [100, 100, 100, 100, 100]#重建tree的头for i in range(len(self.columns)):Label(heading_frame,text=self.columns[i],width=int(self.widths[i]*0.16),anchor='center',relief=GROOVE).pack(side=LEFT)def create_tv(self):#放置 canvas、滚动条的framecanvas_frame=Frame(self.tk,width=600,height=400)canvas_frame.pack(fill=X)#只剩Canvas可以放置treeview和按钮，并且跟滚动条配合self.canvas=Canvas(canvas_frame,width=500,height=500,scrollregion=(0,0,500,400))self.canvas.pack(side=LEFT,fill=BOTH,expand=1)#滚动条ysb = Scrollbar(canvas_frame, orient=VERTICAL, command=self.canvas.yview)self.canvas.configure(yscrollcommand=ysb.set)ysb.pack(side=RIGHT, fill=Y)#!!!!=======重点：鼠标滚轮滚动时，改变的页面是canvas 而不是treeviewself.canvas.bind_all("<MouseWheel>",lambda event:self.canvas.yview_scroll(int(-1 * (event.delta / 120)), "units"))#想要滚动条起效，得在canvas创建一个windows(frame)！！tv_frame=Frame(self.canvas)self.tv_frame=self.canvas.create_window(0, 0, window=tv_frame, anchor='nw',width=600,height=400)#anchor该窗口在左上方#放置button的frameself.button_frame=Frame(tv_frame)self.button_frame.pack(side=LEFT, fill=Y)Label(self.button_frame,width=3).pack() #填充用#创建treeviewself.tv = Treeview(tv_frame, height=10, columns=self.columns, show='headings')#height好像设定不了行数，实际由插入的行数决定self.tv.pack(expand=1, side=LEFT, fill=BOTH)#设定每一列的属性for i in range(len(self.columns)):self.tv.column(self.columns[i], width=0, minwidth=self.widths[i], anchor='center', stretch=True)#设定treeview格式# import tkinter.font as tkFont# ft = tkFont.Font(family='Fixdsys', size=20, weight=tkFont.BOLD)self.tv.tag_configure('oddrow', font='Arial 12') #设定treeview里字体格式font=ftself.tv.tag_configure('select', background='SkyBlue',font='Arial 12')#当对应的按钮被打勾，那么对于的行背景颜色改变！self.rowheight=27 #很蛋疼，好像tkinter里只能用整数！Style().configure('Treeview', rowheight=self.rowheight) #设定每一行的高度# 设定选中的每一行字体颜色、背景颜色 (被选中时，没有变化)Style().map("Treeview",foreground=[ ('focus', 'black'), ],background=[ ('active', 'white')])self.tv.bind('<<TreeviewSelect>>', self.select_tree) #绑定tree选中时的回调函数def insert_tv(self):#清空tree、checkbuttonitems = self.tv.get_children()[self.tv.delete(item) for item in items]self.tv.update()for child in self.button_frame.winfo_children()[1:]: #第一个构件是label，所以忽略child.destroy()#重设tree、button对应关系self.orm={}for i in range(20):tv_item=self.tv.insert('', i, value=[i,i,i,i,''],tags=('oddrow'))#item默认状态tagsimport tkinterck_button = tkinter.Checkbutton(self.button_frame,variable=IntVar())ck_button['command']=lambda item=tv_item:self.select_button(item)ck_button.pack()self.orm[tv_item]=[ck_button]#每次点击插入tree，先设定全选按钮不打勾，接着打勾并且调用其函数self.all_buttonvar.set(0)self.all_button.invoke()#更新canvas的高度height = (len(self.tv.get_children()) + 1) * self.rowheight # treeview实际高度self.canvas.itemconfigure(self.tv_frame, height=height) #设定窗口tv_frame的高度self.tk.update()self.canvas.config(scrollregion=self.canvas.bbox("all"))#滚动指定的范围def select_all(self):'''全选按钮的回调函数作用：所有多选按钮打勾、tree所有行都改变底色(被选中)'''for item,[button] in self.orm.items():if self.all_buttonvar.get()==1:button.select()self.tv.item(item, tags='select')else:button.deselect()self.tv.item(item, tags='oddrow')def select_button(self,item):'''多选按钮的回调函数作用：1.根据按钮的状态，改变对应item的底色(被选中)2.根据所有按钮被选的情况，修改all_button的状态'''button=self.orm[item][0]button_value=button.getvar(button['variable'])if button_value=='1':self.tv.item(item,tags='select')else:self.tv.item(item, tags='oddrow')self.all_button_select()#根据所有按钮改变 全选按钮状态def select_tree(self,event):'''tree绑定的回调函数作用：根据所点击的item改变 对应的按钮'''select_item=self.tv.focus()button = self.orm[select_item][0]button.invoke() #改变对应按钮的状态，而且调用其函数def all_button_select(self):'''根据所有按钮改变 全选按钮状态循环所有按钮，当有一个按钮没有被打勾时，全选按钮取消打勾'''for [button] in self.orm.values():button_value = button.getvar(button['variable'])if button_value=='0':self.all_buttonvar.set(0)breakelse:self.all_buttonvar.set(1)
