我正在使用 Tkinter 为我正在编写的程序创建一个 GUI,该程序将调整我拥有的一些 Zigbee 控制的 LED 灯。我正在使用循环来创建将用作亮度滑块的 Scale 的多个副本。我设法正确地创建了滑块,但实际上我很难正确调整滑块。这是我的代码:
import simplejson as json
import requests # submits http requests
from Tkinter import *
from ttk import Frame, Button, Label, Style, Notebook
# MD5 hash from http://www.miraclesalad.com/webtools/md5.php
myhash = "d9ffaca46d5990ec39501bcdf22ee7a1"
appname = "dddd" # name content isnt relevant
num_lights = int(3)
class hueApp(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
self.initUI()
def initUI(self, *args, **kwds):
# title the app window
self.parent.title("Hue controller")
self.style = Style()
# create grid layout
self.columnconfigure(0, pad=3)
self.columnconfigure(1, pad=3)
self.columnconfigure(2, pad=3)
self.rowconfigure(0, pad=3)
self.scale=[]
self.val=[]
for i in range(num_lights):
print 'i=', i, type(i)
self.val.append(i+1)
print 'val=', self.val, type(self.val)
self.scale.append(Scale(self, from_=255, to_=0, command=lambda i=self.val: self.brightness_adj(i,light_id=i)))
print self.scale[i]
print 'i = ', i, type(i), '\n\n'
self.scale[i].set(150)
self.scale[i].grid(row=1, column=i)
if i == 2:
print '\n', self.scale, '\n'
print self.val, '\n'
self.scale[i].set(200)
self.centerWindow
self.pack()
def brightness_adj(self,light_val, light_id):
#global bri_val
print 'light_id:', light_id, type(light_id)
print 'light_val:', light_val, type(light_val)
print self.val[int(light_id)]
#print int(light_id)
bri_val = self.scale[light_id-1].get()
print bri_val
light = light_id
global huehub
huehub = "http://192.168.0.100/api/"+ myhash + "/lights/" + str(light)
#brightness_logic()
reply = requests.get(huehub)
a=json.loads(reply.text)
#print bri_val
payload = json.dumps({"bri":bri_val})
sethuehub = huehub + "/state"
reply = requests.put(sethuehub, data=payload)
def centerWindow(self):
w = 250
h = 150
sw = self.parent.winfo_screenwidth()
sh = self.parent.winfo_screenheight()
x = (sw-w)/2
y = (sh-h)/2
self.parent.geometry('%dx%d+%d+%d' % (w, h, x, y))
def main():
root=Tk() #the root window is created
app=hueApp(root) #create an instance of the application class
root.mainloop()
if __name__ == '__main__':
main()
我意识到,当您尝试运行此代码时,它可能会出错。基本上我的问题是每个比例的命令只是发送brightness_adj比例的值,但我不能让它通过光的id。我试图通过发送它在创建时附加到的 self.scale 列表的索引来做到这一点。我需要知道正在调整哪个灯,以便我可以向相应的灯泡发送新的亮度。我希望我足够清楚。提前致谢!