我正在构建一个 UI，用户必须在其中选择一些日期。我添加了一个名为 Date Indicator 的行，它显示了一个带有颜色的框。起始颜色(直到用户选择两个日期)为 grey。此颜色必须根据用户选择的日期而改变。
- 如果他选择的两个日期之间的天数超过两周，则该框必须变为绿色。
- 如果他选择的两个日期之间的天数少于两周，则该框必须变为黄色。
如果他选择的两个日期之间的天数小于 一周，则该框必须变为红色。
这是所需解决方案的 Photoshop 结果:
代码好像有点长，不过只要查到tkCalendar类就可以了。从那里到底部只是您不需要更改的日历代码。 (是的，有一些 imports 不需要用于此代码，我维护它们是因为我必须将它们用于其他东西，但你可以删除它们)
# -*- coding: utf-8 -*-
import os
from Tkinter import *
import Image
import ImageTk
import tkFileDialog
import xlrd
import csv
from tkMessageBox import *
from win32com.client import Dispatch
import datetime
import time
import calendar
year = time.localtime()[0]
month = time.localtime()[1]
day =time.localtime()[2]
strdate = (str(year) + "/" + str(month) + "/" + str(day))
fnta = ("Helvetica", 10)
fnt = ("Helvetica", 10)
fntc = ("Helvetica", 10, 'bold')
strtitle = "Calendario"
strdays= "Do Lu Ma Mi Ju Vi Sa"
dictmonths = {'1':'Ene','2':'Feb','3':'Mar','4':'Abr','5':'May',
'6':'Jun','7':'Jul','8':'Ago','9':'Sep','10':'Oct','11':'Nov',
'12':'Dic'}
class Planificador(Frame):
def __init__(self,master):
Frame.__init__(self, master)
self.master = master
self.initUI()
def initUI(self):
self.master.title("Planner")
self.frameOne = Frame(self.master)
self.frameOne.grid(row=0,column=0)
self.frameTwo = Frame(self.master)
self.frameTwo.grid(row=0, column=1)
self.frameThree = Frame(self.master)
self.frameThree.grid(row=0, column=2)
self.frameFour = Frame(self.master)
self.frameFour.grid(row=1,column=0, sticky=N)
self.frameFive = Frame(self.master)
self.frameFive.grid(row=1, column=1)
self.frameSix = Frame(self.master)
self.frameSix.grid(row=1, column=2, sticky=N)
self.frameSeven = Frame(self.master)
self.frameSeven.grid(row=2,column=0)
self.frameEight = Frame(self.master)
self.frameEight.grid(row=2, column=1, sticky=S)
self.frameNine = Frame(self.master)
self.frameNine.grid(row=2, column=2)
self.start_date_menu()
def start_date_menu(self):
self.initial_num_elements = 4
self.TEXT_MENU_ROW = 0 # initial date menu grid row
self.COL_WIDTH = 10 # width of each subcolumn of dates
for frame in (self.frameFour, self.frameSix):
self.dayintext = Label(frame, text="Day in",
width=self.COL_WIDTH, justify="center")
self.dayintext.grid(row=self.TEXT_MENU_ROW, column=0)
self.dayouttext = Label(frame, text="Day out", width=self.COL_WIDTH,
justify="center")
self.dayouttext.grid(row=self.TEXT_MENU_ROW, column=1)
self.status = Label(frame, text="Date indicator", width=self.COL_WIDTH,
justify="center")
self.status.grid(row=self.TEXT_MENU_ROW, column=2)
self.dates = [self.create_all_entrys(aux_index)
for aux_index in xrange(self.initial_num_elements)]
self.anadirpiezas = Button(self.frameEight, text="add more",
command=self.addone, width=self.COL_WIDTH)
self.anadirpiezas.grid(row=0, column=3)
def addone(self):
self.dates.append(self.create_all_entrys(len(self.dates)))
self.printdates()
def printdates(self):
print "IN:"
for i in xrange(self.initial_num_elements):
print self.dates[i][0].get() # col 0
print "OUT:"
for i in xrange(self.initial_num_elements):
print self.dates[i][2].get() # col 2
def create_all_entrys(self, aux_index):
menu_col = aux_index % 2 # left/right column of the date frame
menu_row = self.TEXT_MENU_ROW + aux_index/2 + 1
frame = self.frameSix if aux_index % 2 else self.frameFour
in_var = StringVar(value="--------")
in_btn = Button(frame, textvariable=in_var, width=self.COL_WIDTH,
command=lambda v=in_var: self.fnCalendar(v))
in_btn.grid(row=menu_row, column=0)
out_var = StringVar(value="--------")
out_btn = Button(frame, textvariable=out_var, width=self.COL_WIDTH,
command=lambda v=out_var: self.fnCalendar(v))
out_btn.grid(row=menu_row, column=1)
self.colorvar = StringVar()
self.colorvar.set('grey')
self.status_color = Label(frame, width=2, bg=self.colorvar.get())
self.status_color.grid(row=menu_row,column=2)
return in_var, in_btn, out_var, out_btn
def fnCalendar(self, datebar):
tkCalendar(self.master, year, month, day, datebar)
class tkCalendar :
def __init__ (self, master, arg_year, arg_month, arg_day,
arg_parent_updatable_var):
print arg_parent_updatable_var.get()
self.update_var = arg_parent_updatable_var
top = self.top = Toplevel(master)
top.title("Choose a date")
try : self.intmonth = int(arg_month)
except: self.intmonth = int(1)
self.canvas =Canvas (top, width =200, height =220,
relief =RIDGE, background ="#ece9d8", borderwidth =0)
self.canvas.create_rectangle(0,0,303,30, fill="#ece9d8",width=0 )
self.canvas.create_text(100,17, text="Choose!", font=fntc, fill="#BA1111")
stryear = str(arg_year)
self.year_var=StringVar()
self.year_var.set(stryear)
self.lblYear = Label(top, textvariable = self.year_var,
font = fnta, background="#ece9d8")
self.lblYear.place(x=85, y = 30)
self.month_var=StringVar()
strnummonth = str(self.intmonth)
strmonth = dictmonths[strnummonth]
self.month_var.set(strmonth)
self.lblYear = Label(top, textvariable = self.month_var,
font = fnta, background="#ece9d8")
self.lblYear.place(x=85, y = 50)
#Variable muy usada
tagBaseButton = "Arrow"
self.tagBaseNumber = "DayButton"
#draw year arrows
x,y = 40, 43
tagThisButton = "leftyear"
tagFinalThisButton = tuple((tagBaseButton,tagThisButton))
self.fnCreateLeftArrow(self.canvas, x,y, tagFinalThisButton)
x,y = 150, 43
tagThisButton = "rightyear"
tagFinalThisButton = tuple((tagBaseButton,tagThisButton))
self.fnCreateRightArrow(self.canvas, x,y, tagFinalThisButton)
#draw month arrows
x,y = 40, 63
tagThisButton = "leftmonth"
tagFinalThisButton = tuple((tagBaseButton,tagThisButton))
self.fnCreateLeftArrow(self.canvas, x,y, tagFinalThisButton)
x,y = 150, 63
tagThisButton = "rightmonth"
tagFinalThisButton = tuple((tagBaseButton,tagThisButton))
self.fnCreateRightArrow(self.canvas, x,y, tagFinalThisButton)
#Print days
self.canvas.create_text(100,90, text=strdays, font=fnta)
self.canvas.pack (expand =1, fill =BOTH)
self.canvas.tag_bind ("Arrow", "<ButtonRelease-1>", self.fnClick)
self.canvas.tag_bind ("Arrow", "<Enter>", self.fnOnMouseOver)
self.canvas.tag_bind ("Arrow", "<Leave>", self.fnOnMouseOut)
self.fnFillCalendar()
def fnCreateRightArrow(self, canv, x, y, strtagname):
canv.create_polygon(x,y, [[x+0,y-5], [x+10, y-5] , [x+10,y-10] ,
[x+20,y+0], [x+10,y+10] , [x+10,y+5] , [x+0,y+5]],
tags = strtagname , fill="black", width=0)
def fnCreateLeftArrow(self, canv, x, y, strtagname):
canv.create_polygon(x,y, [[x+10,y-10], [x+10, y-5] , [x+20,y-5] ,
[x+20,y+5], [x+10,y+5] , [x+10,y+10] ],
tags = strtagname , fill="black", width=0)
def fnClick(self,event):
owntags =self.canvas.gettags(CURRENT)
if "rightyear" in owntags:
intyear = int(self.year_var.get())
intyear +=1
stryear = str(intyear)
self.year_var.set(stryear)
if "leftyear" in owntags:
intyear = int(self.year_var.get())
intyear -=1
stryear = str(intyear)
self.year_var.set(stryear)
if "rightmonth" in owntags:
if self.intmonth < 12 :
self.intmonth += 1
strnummonth = str(self.intmonth)
strmonth = dictmonths[strnummonth]
self.month_var.set(strmonth)
else :
self.intmonth = 1
strnummonth = str(self.intmonth)
strmonth = dictmonths[strnummonth]
self.month_var.set(strmonth)
intyear = int(self.year_var.get())
intyear +=1
stryear = str(intyear)
self.year_var.set(stryear)
if "leftmonth" in owntags:
if self.intmonth > 1 :
self.intmonth -= 1
strnummonth = str(self.intmonth)
strmonth = dictmonths[strnummonth]
self.month_var.set(strmonth)
else :
self.intmonth = 12
strnummonth = str(self.intmonth)
strmonth = dictmonths[strnummonth]
self.month_var.set(strmonth)
intyear = int(self.year_var.get())
intyear -=1
stryear = str(intyear)
self.year_var.set(stryear)
self.fnFillCalendar()
def fnFillCalendar(self):
init_x_pos = 20
arr_y_pos = [110,130,150,170,190,210]
intposarr = 0
self.canvas.delete("DayButton")
self.canvas.update()
intyear = int(self.year_var.get())
monthcal = calendar.monthcalendar(intyear, self.intmonth)
for row in monthcal:
xpos = init_x_pos
ypos = arr_y_pos[intposarr]
for item in row:
stritem = str(item)
if stritem == "0":
xpos += 27
else :
tagNumber = tuple((self.tagBaseNumber,stritem))
self.canvas.create_text(xpos, ypos , text=stritem,
font=fnta,tags=tagNumber)
xpos += 27
intposarr += 1
self.canvas.tag_bind ("DayButton", "<ButtonRelease-1>", self.fnClickNumber)
self.canvas.tag_bind ("DayButton", "<Enter>", self.fnOnMouseOver)
self.canvas.tag_bind ("DayButton", "<Leave>", self.fnOnMouseOut)
def fnClickNumber(self,event):
owntags =self.canvas.gettags(CURRENT)
for x in owntags:
if (x == "current") or (x == "DayButton"): pass
else :
strdate = (str(self.year_var.get()) + "/" +
str(self.intmonth) + "/" +
str(x))
self.update_var.set(strdate)
self.top.withdraw()
def fnOnMouseOver(self,event):
self.canvas.move(CURRENT, 1, 1)
self.canvas.update()
def fnOnMouseOut(self,event):
self.canvas.move(CURRENT, -1, -1)
self.canvas.update()
if __name__ == "__main__":
root = Tk()
aplicacion = Planificador(root)
root.mainloop()
我完全迷失了尝试这样做。我知道我必须更改 self.colorvar 但我不知道该怎么做。例如，我尝试使用 self.colorvar.set('red') 但我无法按照上面解释的方式进行操作。 in 和 out 日期可以在 printdates 函数中找到。非常感谢您的帮助。
最佳答案
我认为您不能将 bg 选项链接到 StringVar。您只能使用选项 textvariable 来完成它。你应该这样做的方式是通过 Label.config() 方法。
所以你可以这样写:
self.status_color.config(bg='red')
或者，如果您想继续使用 colorvar:
self.colorvar.set('red')
self.status_color.config(bg=self.colorvar.get())
这应该行得通，我想您可以在 2 周内弄清楚。
编辑:
您还可以将 StringVar self.colorvar“链接”到更改 self.status_color 的函数(使用 trace 方法)；这样每当 colorvar 改变时，你的函数就会被调用，它会改变状态颜色。 这是我的建议:
def myFunc(*args):
self.status_color.config(bg=self.colorvar.get())
self.colorvar.trace('w',self.myFunc)
现在每次调用 self.colorvar.set() 时，您也会调用 self.myFunc。
编辑:
至于周的事情，我不打算完全回答，因为它看起来很容易。只需获取 IN 和 OUT 的月份和日期的整数，然后执行如下操作:
monthdiff = monthout-monthin
if monthdiff!=0:
dayout += monthdiff*30 #or 31, depending on the month. Just add an if/else
weeks = ((dayout-dayin)//7)+1 #For python2.7 use only one slash
然后您的 if/else 具有颜色更改功能。一月份也要小心，如果多的话就加一个。我想您可以自己解析 IN 和 OUT 字符串来获取月份和日期。
关于Python Tkinter 更改 StringVar 值以将其用作 UI 上的背景指示器，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20070637/