def __init__(self, parent=None, people=(), reqchoices=3, *args, **kwargs):
#super constructor
tk.Frame.__init__(self, master=parent, *args, **kwargs)
#setup instance vars
self.candidates, self.selection = list(people), list()
self.requiredChoices=reqchoices
self.status = tk.StringVar()
self.update_status()
#create GUI widgets
self.candidateLabel = tk.Label(self, text="Candidates")
## self.configSelectFrame = tk.Frame(self)
self.candidateList = tk.StringVar(value=tuple(self.candidates))
self.candidateListbox = ScrolledListBox(self, padx=3, pady=3)
self.candidateListbox.lb.config(selectmode=BROWSE,
listvariable=self.candidateList)
self.configSelect=tk.Button(self, text="Add", padx=3, pady=3,
command=self.add_candidate)
self.candidateListbox.lb.config(selectmode="single")
self.pathLabel = tk.Label(self, text="Selection", padx=5, pady=3)
self.chosenList = tk.StringVar(value=tuple(self.selection))
self.chosenListbox = ScrolledListBox(self, padx=3, pady=3)
self.chosenListbox.lb.config(listvariable=self.chosenList)
self.increaseSelection = tk.Button(self, text="▲", padx=2,pady=2,
command=self.increase_priority)
self.decreaseSelection = tk.Button(self, text="▼", padx=2,pady=2,
command=self.decrease_priority)
self.candidateRemove = tk.Button(self, text="Remove", padx=3, pady=3,
command=self.remove_candidate)
self.statusLabel = tk.Label(self, textvariable=self.status)
## self.saveChanges = tk.Button(self, text="Submit Vote", padx=3, pady=3,
## command=lambda:tkmb.showwarning(
## "Functionality Warning",
## "voting not implemented"))
self.candidateListbox.lb.bind("<<ListboxSelect>>", self.stupid_check)
self.chosenListbox.lb.bind("<<ListboxSelect>>", self.stupid_check)
#grid all the items to make them look nice
self.candidateLabel.grid(row=0, column=0, sticky=NSEW)
self.candidateListbox.grid(row=1, column=0, sticky=NSEW)
self.configSelect.grid(row=2, column=0, sticky=NSEW)
self.pathLabel.grid(row=0, column=1, columnspan=3, sticky=NSEW)
self.chosenListbox.grid(row=1, column=1, columnspan=3, sticky=NSEW)
self.increaseSelection.grid(row=2, column=1, sticky=NSEW)
self.decreaseSelection.grid(row=2, column=2, sticky=NSEW)
self.candidateRemove.grid(row=2, column=3, sticky=NSEW)
self.statusLabel.grid(row=3, column=0, columnspan=3, sticky=(N,S,W))
## self.saveChanges.grid(row=3, column=1, columnspan=3, sticky=NSEW)
self.grid_columnconfigure(0, weight=1)
self.grid_rowconfigure(5, weight=1)
#set up everything
self.stupid_check()
class VotingFrame(ttk.Frame):
def __init__(self, parent=None, people=(), reqchoices=3, *args, **kwargs):
#super constructor
tk.Frame.__init__(self, master=parent, *args, **kwargs)
#setup instance vars
self.candidates, self.selection = list(people), list()
self.requiredChoices=reqchoices
self.status = tk.StringVar()
self.update_status()
#create GUI widgets
self.candidateLabel = tk.Label(self, text="Candidates")
## self.configSelectFrame = tk.Frame(self)
self.candidateList = tk.StringVar(value=tuple(self.candidates))
self.candidateListbox = ScrolledListBox(self, padx=3, pady=3)
self.candidateListbox.lb.config(selectmode=BROWSE,
listvariable=self.candidateList)
self.configSelect=tk.Button(self, text="Add", padx=3, pady=3,
command=self.add_candidate)
self.candidateListbox.lb.config(selectmode="single")
self.pathLabel = tk.Label(self, text="Selection", padx=5, pady=3)
self.chosenList = tk.StringVar(value=tuple(self.selection))
self.chosenListbox = ScrolledListBox(self, padx=3, pady=3)
self.chosenListbox.lb.config(listvariable=self.chosenList)
self.increaseSelection = tk.Button(self, text="▲", padx=2,pady=2,
command=self.increase_priority)
self.decreaseSelection = tk.Button(self, text="▼", padx=2,pady=2,
command=self.decrease_priority)
self.candidateRemove = tk.Button(self, text="Remove", padx=3, pady=3,
command=self.remove_candidate)
self.statusLabel = tk.Label(self, textvariable=self.status)
## self.saveChanges = tk.Button(self, text="Submit Vote", padx=3, pady=3,
## command=lambda:tkmb.showwarning(
## "Functionality Warning",
## "voting not implemented"))
self.candidateListbox.lb.bind("<<ListboxSelect>>", self.stupid_check)
self.chosenListbox.lb.bind("<<ListboxSelect>>", self.stupid_check)
#grid all the items to make them look nice
self.candidateLabel.grid(row=0, column=0, sticky=NSEW)
self.candidateListbox.grid(row=1, column=0, sticky=NSEW)
self.configSelect.grid(row=2, column=0, sticky=NSEW)
self.pathLabel.grid(row=0, column=1, columnspan=3, sticky=NSEW)
self.chosenListbox.grid(row=1, column=1, columnspan=3, sticky=NSEW)
self.increaseSelection.grid(row=2, column=1, sticky=NSEW)
self.decreaseSelection.grid(row=2, column=2, sticky=NSEW)
self.candidateRemove.grid(row=2, column=3, sticky=NSEW)
self.statusLabel.grid(row=3, column=0, columnspan=3, sticky=(N,S,W))
## self.saveChanges.grid(row=3, column=1, columnspan=3, sticky=NSEW)
self.grid_columnconfigure(0, weight=1)
self.grid_rowconfigure(5, weight=1)
#set up everything
self.stupid_check()
def reload_listboxes(self, e=None):
print("\treloading listboxes", file=sys.stderr)
selectedCandidate = self.candidateListbox.selected()
selectedChoice = self.chosenListbox.selected()
self.candidateList.set(tuple(self.candidates))
self.chosenList.set(tuple(self.selection))
if selectedCandidate != None:
if selectedCandidate >= len(self.candidates):
self.stupid_check()
else:
self.candidateListbox.select(selectedCandidate)
if selectedChoice != None:
if selectedChoice >= len(self.selection):
self.stupid_check()#will disable the add/ remove as appropriate
else:
self.chosenListbox.select(selectedChoice)
print("\tdone reloading listboxes", file=sys.stderr)
def update_status(self):
remaining = self.requiredChoices - len(self.selection)
if remaining == 0:
self.status.set("All candidates chosen")
else:
self.status.set("{} candidates remaining".format(remaining))
def add_candidate(self, e=None):
candidateindex = self.candidateListbox.selected()
self.selection.append(self.candidates.pop(candidateindex))
self.update_status()
self.stupid_check()
def remove_candidate(self, e=None):
candidateindex = self.chosenListbox.selected()
self.candidates.append(self.selection.pop(candidateindex))
self.update_status()
self.stupid_check()
def increase_priority(self, e=None):
candidateindex = self.chosenListbox.selected()
self.selection.insert(candidateindex-1,
self.selection.pop(candidateindex))
## self.chosenListbox.lb.activate(candidateindex-1)
self.chosenListbox.inc_selection()
self.stupid_check()
def decrease_priority(self, e=None):
candidateindex = self.chosenListbox.selected()
self.selection.insert(candidateindex+1,
self.selection.pop(candidateindex))
## self.chosenListbox.lb.activate(int(candidateindex)+1)
self.chosenListbox.dec_selection()
self.stupid_check()
def stupid_check(self, e=None):
## self.reload_listboxes()#why?
print("chosenListboxSelection:", self.chosenListbox._selected())
#check whether it's valid to add candidates
if len(self.candidates) == 0 \
or self.candidateListbox.selected()==None \
or len(self.selection) >= self.requiredChoices:
#disable adding to list if no more candidates allowed or none selected
self.configSelect.config(state=DISABLED)
if len(self.candidates) != 0:
#allow the user to select someone
self.candidateListbox.lb.config(state=NORMAL)
else:
self.candidateListbox.lb.config(state=DISABLED)
else:
#re-enable adding to list
print("reenabling movement")
self.configSelect.config(state=NORMAL)
self.candidateListbox.lb.config(state=NORMAL)
if len(self.selection) == 0\
or self.chosenListbox.selected()==None:
#disable deleting / moving
self.candidateRemove.config(state=DISABLED)
self.increaseSelection.config(state=DISABLED)
self.decreaseSelection.config(state=DISABLED)
if len(self.selection) != 0:
#allow the user to select someone
self.chosenListbox.lb.config(state=NORMAL)
else:
self.chosenListbox.lb.config(state=DISABLED)
else:
#re-enable deleting / moving
self.chosenListbox.lb.config(state=NORMAL)
self.candidateRemove.config(state=NORMAL)
if self.chosenListbox.curselection() == ('0',):
#can't move up, already at the top of the list
self.increaseSelection.config(state=DISABLED)
else:
self.increaseSelection.config(state=NORMAL)
if self.chosenListbox.selected() == len(self.selection)-1:
#can't move down, already at the end of the list
self.decreaseSelection.config(state=DISABLED)
else:
self.decreaseSelection.config(state=NORMAL)
self.chosenListbox.update()
## self.chosenListbox.focus_force()
## self.chosenListbox.update_idletasks()
## if len(self.selection) == self.requiredChoices:
## self.saveChanges.config(state=NORMAL)
## else:
## self.saveChanges.config(state=DISABLED)
self.reload_listboxes()
self.update_idletasks()
print("#"*50, file=sys.stderr)
self.event_generate("<<Vote>>")
def vote_ready(self):
return len(self.selection) == self.requiredChoices
