def nextHandler(self):
#clears Range Paramenter list
rng2.deleteRangePara()
for widget in self.widgetlist:
if widget.winfo_class() == 'TEntry':
rng2.writeRangePara(widget.get())
self.parent.minor = RangeView3(self.parent)
self.parent.minor.grid(column=1, row=0, columnspan=3, rowspan=2, sticky=(N, S, E, W))
def initUI(self):
#Heading of number of ranges
self.numRlabel = Label(self, text="%s Ranges:" % rng2.getnRanges())
#establish list of potential widgets
self.widgetlist = []
#loop through number of ranges creating widgets and creating fake blank variables
for i in range(int(rng2.getnRanges())):
rng2.writeRangePara("")
rng2.writeRangePara("")
rng2.writeRangePara("")
self.create_widget(i)
#Movement buttons
self.nextB = Button(self, text="Next", command=self.nextHandler)
self.prevB = Button(self, text="Previous", command=self.prevHandler)
#Positioning of widgets
self.numRlabel.grid(column=0, row=0, columnspan=2, sticky=(W))
self.nextB.grid(column=1, row=len(self.widgetlist)+2, sticky=(S, E), padx=5, pady=5)
self.prevB.grid(column=0, row=len(self.widgetlist)+2, sticky = (E))
for child in self.winfo_children(): child.grid_configure(padx=5, pady=5)
