from Tkinter import *
# First create application class
class Application(Frame):
def __init__(self, master=None):
Frame.__init__(self, master)
self.pack()
self.create_widgets()
# Create main GUI window
def create_widgets(self):
self.search_var = StringVar()
self.search_var.trace("w", lambda name, index, mode: self.update_list())
self.entry = Entry(self, textvariable=self.search_var, width=13)
self.lbox = Listbox(self, width=45, height=15)
self.entry.grid(row=0, column=0, padx=10, pady=3)
self.lbox.grid(row=1, column=0, padx=10, pady=3)
# Function for updating the list/doing the search.
# It needs to be called here to populate the listbox.
self.update_list()
def update_list(self):
search_term = self.search_var.get()
# Just a generic list to populate the listbox
lbox_list = ['Adam', 'Lucy', 'Barry', 'Bob',
'James', 'Frank', 'Susan', 'Amanda', 'Christie']
self.lbox.delete(0, END)
for item in lbox_list:
if search_term.lower() in item.lower():
self.lbox.insert(END, item)
root = Tk()
root.title('Filter Listbox Test')
app = Application(master=root)
print 'Starting mainloop()'
app.mainloop()
Diff to Previous Revision
--- revision 2 2014-04-10 02:43:24
+++ revision 3 2014-04-10 10:25:38
@@ -1,75 +1,44 @@
from Tkinter import *
-
-#First create application class
+
+# First create application class
+
+
class Application(Frame):
+
def __init__(self, master=None):
Frame.__init__(self, master)
-
- #These variables will be used in the poll function so i
- #Set them at the start of the program to avoid errors.
- self.search_var = StringVar()
- self.switch = False
- self.search_mem = ''
-
+
self.pack()
self.create_widgets()
-
- #Create main GUI window
+
+ # Create main GUI window
def create_widgets(self):
- #Use the StringVar we set up in the __init__ function
- #as the variable for the entry box
+ self.search_var = StringVar()
+ self.search_var.trace("w", lambda name, index, mode: self.update_list())
self.entry = Entry(self, textvariable=self.search_var, width=13)
self.lbox = Listbox(self, width=45, height=15)
-
+
self.entry.grid(row=0, column=0, padx=10, pady=3)
self.lbox.grid(row=1, column=0, padx=10, pady=3)
-
- #Function for updating the list/doing the search.
- #It needs to be called here to populate the listbox.
+
+ # Function for updating the list/doing the search.
+ # It needs to be called here to populate the listbox.
self.update_list()
-
- self.poll()
-
- #Runs every 50 milliseconds.
- def poll(self):
- #Get value of the entry box
- self.search = self.search_var.get()
- if self.search != self.search_mem: #self.search_mem = '' at start of program.
- self.update_list(is_contact_search=True)
-
- #set switch and search memory
- self.switch = True #self.switch = False at start of program.
- self.search_mem = self.search
-
- #if self.search returns to '' after preforming search
- #it needs to reset the contents of the list box. I use
- #a 'switch' to determine when it needs to be updated.
- if self.switch == True and self.search == '':
- self.update_list()
- self.switch = False
- self.after(50, self.poll)
-
- def update_list(self, **kwargs):
- try:
- is_contact_search = kwargs['is_contact_search']
- except:
- is_contact_search = False
-
- #Just a generic list to populate the listbox
- lbox_list = ['Adam', 'Lucy', 'Barry', 'Bob', 'James', 'Frank', 'Susan', 'Amanda', 'Christie']
-
+
+ def update_list(self):
+ search_term = self.search_var.get()
+
+ # Just a generic list to populate the listbox
+ lbox_list = ['Adam', 'Lucy', 'Barry', 'Bob',
+ 'James', 'Frank', 'Susan', 'Amanda', 'Christie']
+
self.lbox.delete(0, END)
-
+
for item in lbox_list:
- if is_contact_search == True:
- #Searches contents of lbox_list and only inserts
- #the item to the list if it self.search is in
- #the current item.
- if self.search.lower() in item.lower():
- self.lbox.insert(END, item)
- else:
+ if search_term.lower() in item.lower():
self.lbox.insert(END, item)
-
+
+
root = Tk()
root.title('Filter Listbox Test')
app = Application(master=root)
