I have created functions that can display graphs and tables of csv files in a GUI I am making with tkinter.
I have a menubar with an import button, a plot button, and a table button. The plot and table button can successfully plot graphs and tables of csv files respectively.
What I'd like to do, is when the user selects the import button, they select a file of their choice. Then, if they happen to select the plot button, the plot function works on the file they chose from import. Moreover, if they happen to select the table button, the table function works on the file they chose from import.
I have created a file opening function called openfile() which remembers the name of the file opened.
The problem is that I don't know how to use menubar and openfile() such when the import button is clicked, my application stores the filename.
Any tips on how I would go about doing this?
Here's the code I've written for the menubar and openfile():
def openfile():
name= askopenfilename()
return (name[19:])
class MyApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
tk.Tk.wm_title(self, "MyApp")
# main frame
container = tk.Frame(self)
container.pack(side="top", fill="both", expand = True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
container = tk.Frame(self)
container.pack(side="top", fill="both", expand = True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
# creates the menubar at the top of the window
menubar = tk.Menu(container)
# import menu for importing csv files, initializes a file opening function (tbd)
filemenu = tk.Menu(menubar, tearoff=0)
filemenu.add_command(label="Import a CSV File", command = file_openerfunction)
menubar.add_cascade(label= "Import", menu=filemenu)
# plot menu for creating graphs and figures
Plot = tk.Menu(menubar, tearoff =0 )
Plot.add_command(label="Plot My CSV File", command= popupgraph)
menubar.add_cascade(label="Plot", menu=Plot)
# table menu for viewing data in a table
table = tk.Menu(menubar, tearoff = 0)
table.add_command(label="View MY CSV File", command = table)
table.add_cascade(label = "View Data", menu = table)
tk.Tk.config(self, menu=table)
....
....
First of all, I would suggest you take an Object Oriented approach to split each component behaviour.
This way, you would have a class App, where you would initialise the main components of the app:
class App(tk.Tk):
def __init__(self,parent):
Tk.__init__(self,parent)
self.parent = parent
self.initialize()
def initialize(self):
...
...
# Menubar
self.menubar = MyMenuBar(self)
# Filemenu
self.filemenu = MyFileMenu(self, menubar)
# Plot
self.plot = MyPlot(self, menubar)
# The rest for all the other components
...
def get_import_filename(self):
# Ask the child for the filename and return it
return self.filemenu.get_filename()
And then define every of your objects:
class MyPlot(tk.Menu):
def __init__(self, parent, menubar):
tk.Menu.__init__(self, menubar, tearoff=0)
self.parent = parent
self.initialize()
def initialize(self):
self.add_command(label="Plot My CSV File", command= self.popupgraph)
def popupgraph(self):
# Ask the parent for the filename
filename = self.parent.get_import_filename()
# Do whatever with the filename...like open a file
class MyFileMenu(tk.Menu):
def __init__(self, parent, menubar):
tk.Menu.__init__(self, menubar, tearoff=0)
self.parent = parent
self.initialize()
def initialize(self):
self.add_command(label="Import a CSV File", command = file_opener)
def file_opener(self):
# Your file opener function goes here
...
# At the end, save the imported file:
self.filename = filename
def get_filename(self):
return self.filename
Finally, have the main to run it:
def main():
app = App(None)
app.title('Auto login')
app.mainloop()
if __name__ == "__main__":
main()