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| from Tkinter import *
from math import pi
class ChoixVibra(Frame):
"""Curseurs pour choisir fréquence, phase & amplitude d'une vibration"""
def __init__(self, boss =None, coul ='red'):
Frame.__init__(self) # Constructeur de la classe parente
# initialisation de quelques attributs d'instance :
self.freq, self.phase, self.ampl, self.coul = 0, 0, 0, coul
# variable d'état de la case à cocher :
self.chk = IntVar() # 'objet-variable' Tkinter
Checkbutton(self, text='Afficher', variable=self.chk,
fg = self.coul, command = self.setCurve).pack(side=LEFT)
# définition des trois widgets curseurs :
Scale(self, length=150, orient=HORIZONTAL, sliderlength =25,
label ='Fréquence (Hz) :', from_=1., to=9., tickinterval =2,
resolution =0.25,
showvalue =0, command = self.setFrequency).pack(side=LEFT)
Scale(self, length=150, orient=HORIZONTAL, sliderlength =15,
label = 'Phase (degrés) :', from_=-180, to=180, tickinterval =90,
showvalue =0, command = self.setPhase).pack(side=LEFT)
Scale(self, length=150, orient=HORIZONTAL, sliderlength =25,
label ='Amplitude :', from_=1, to=9, tickinterval =2,
showvalue =0, command =self.setAmplitude).pack(side=LEFT)
def setCurve(self):
self.event_generate('<Control-Z>')
def setFrequency(self, f):
self.freq = float(f)
self.event_generate('<Control-Z>')
def setPhase(self, p):
pp = float(p)
self.phase = pp*2*pi/360 # conversion degrés -> radians
self.event_generate('<Control-Z>')
def setAmplitude(self, a):
self.ampl = float(a)
self.event_generate('<Control-Z>')
#### Code pour tester la classe : ####
if __name__ == '__main__':
def afficherTout(event=None):
lab.configure(text = '%s - %s - %s - %s' %
(fra.chk.get(), fra.freq, fra.phase, fra.ampl))
root = Tk()
fra = ChoixVibra(root,'navy')
fra.pack(side = TOP)
lab = Label(root, text ='test')
lab.pack()
root.bind('<Control-Z>', afficherTout)
root.mainloop() |
