I'm building a GUI with code that originally came from another stack exchange answer. I've modified it since I want to pass variables to following pages and have them display the values. As a way to do this, rather than display on a button event, I am trying to create the page with the show() method:
import Tkinter as tk
#import vpnRename12 as Rename
#import vpnRename_pullconfig as pullConfig
"""
Create multiple pages to go through in the same frame. Use lift() to bring
the desired page into view and stack them on top of one another. Define
page-specific methods in each page.
"""
class vpnRenameProgram(tk.Tk):
"""
Create a page class that will allow you to lift to front the applicable
page with the proper functions to keep the script running.
"""
def __init__(self,*args,**kwargs):
tk.Tk.__init__(self,*args,**kwargs)
# Create an empty dictionary to contain all of the page names
self.frames = {}
self.show("MainView")
# Instantiate the next page on call, rather than at start to allow
flexibility
def instantiate_page(self, cls):
"""
Since all of the pages are defined in the same scope/namespace, we
can use
the globals()[] dict to find and instantiate the pages dynamically
with the show() method.
cls is the class argument we are doing a lookup on in the global()
dict.
"""
try:
newframe = globals()[cls](container,self)
page_name = newframe.__name__
except:
print("\nError defining inline class %s"%cls)#("Class %s is not defined" %cls)
newframe = None
page_name=globals()[cls].__name__
return newframe, page_name
# Create lift function to bring desired page to front of view,
#instantiate page if
# it isn't already (check frames dict)
def show(self, cls):
if cls not in self.frames.keys():
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
frame, page_name = self.instantiate_page(cls)
if frame==None:
frame = globals()[cls](parent=container, controller=self)
self.frames[page_name] = frame
frame.grid(row=0, column=0, sticky="news")
frame = self.frames[cls]
frame.lift()
def get_page(self, classname):
"""
Return instance of page when it's class name is passed in as string
"""
for page in self.frames.values():
if str(page.__class__.__name__) == classname:
return page
return None
class MainView(tk.Frame):
def __init__(self,parent, controller,**kwargs):
tk.Frame.__init__(self,parent)
self.controller = controller
self.edit_directory="edit_dir"
self.complete_directory ="comp_dir"
TitleLabel = tk.Label(self, text="VPN Script Editor")
TitleLabel.pack({"side":"top"})
EditLabel = tk.Label(self, text="Edit File Directory:
%s"%self.edit_directory)
EditLabel.pack()
CompLabel = tk.Label(self, text="Completed File Directory:
%s"%self.complete_directory)
CompLabel.pack()
Next = tk.Button(self, text="Next", command=lambda:
controller.show("listVPN"))
Next.pack()
class listVPN(tk.Frame):
"""
This is the second page, it contains a text box where you will list the
names of the vpn's that you want to edit. It will also display the
directories
obtained by the pullconfig script.
"""
def read_list(self):
vpn_list=str(self.var_vpn_list.get()).upper()
return vpn_list
def __init__(self, parent, controller, **kwargs):
self.controller = controller
tk.Frame.__init__(self, parent)
self.var_vpn_list = tk.StringVar()
label=tk.Label(self, text="Please list the VPNs desired to edit")
label.pack()
#Create text box to submit a list of vpns back to the main program
vpnLabel = tk.Label(self, text="VPN Names").pack()
self.TextBox = tk.Entry(self, textvariable=self.var_vpn_list)
self.TextBox.pack()
vpnListSubmit = tk.Button(self, text="Enter", command= lambda:
self.read_list() and self.controller.show("pickFiles"))
vpnListSubmit.pack()
class pickFiles(tk.Frame):
"""
Second page that allows you to select your desired files from the
edit directory specified in the config file. Check all desired files,
list will be returned to the program.
"""
def get_vpn_list(self):
list = self.controller.get_page("listVPN").var_vpn_list.get()
self.vpn_list = str(list).upper()
self.vpn_label.configure(text="VPN List: %s"%self.vpn_list)
return self.vpn_list
def __init__(self, parent, controller,**kwargs):
# Inherits from the tk.Frame class
tk.Frame.__init__(self, parent)
self.controller = controller
self.vpn_list = tk.StringVar()
list = self.controller.get_page("listVPN").var_vpn_list.get()
self.vpn_list = str(list).upper()
show_vpn = tk.Button(self, text="Show vpnlist", command =
self.get_vpn_list)
show_vpn.pack()
self.vpn_label = tk.Label(self, text="VPN List: %s" %self.vpn_list)
self.vpn_label.pack()
# todo: get external module function to run with variable input
#file_list = Rename.searchFile(vpnlist)
# Execute program on calling the parent class
if __name__=="__main__":
app = vpnRenameProgram()
app.mainloop()
EDIT: Above is my whole code with custom scripts I've imported commented out. My main question is about layout. I want the frames to stack on top of one another, but they are not. Why is it doing this and what would get me on track to getting the layout I want?
