Python Forum

The autocomplete class below works as expected when the lines 9-19 (=notebook tabs) are missing, meaning that the list of the entry box (line 130), appears below the box.

Adding the pages/tabs of the notebook widget, everything works fine but the drop down list "covers" the entry box (so, if a string is written in the field, isn't visible). I don't know if the addition of the tabs alters the alignment of the rows etc

from tkinter import *
import re
from tkinter import ttk

w1=Tk()
w1.title('GUI Special Solutions')
w1.geometry('1500x800+0+0')

# Defines and places the notebook widget
nb = ttk.Notebook(w1)
nb.grid(row=1, column=0,columnspan=100, rowspan=99,sticky='NESW')
 
# Adds tab 1 of the notebook
page1 = ttk.Frame(nb)
nb.add(page1, text='Home')
 
# Adds tab 2 of the notebook
page2 = ttk.Frame(nb)
nb.add(page2, text='Search')
 
class AutocompleteEntry(Entry):
    def __init__(self, autocompleteList, *args, **kwargs):

        # Listbox length
        if 'listboxLength' in kwargs:
            self.listboxLength = kwargs['listboxLength']
            del kwargs['listboxLength']
        else:
            self.listboxLength = 6

        # Custom matches function
        if 'matchesFunction' in kwargs:
            self.matchesFunction = kwargs['matchesFunction']
            del kwargs['matchesFunction']
        else:
            def matches(fieldValue, acListEntry):
                pattern = re.compile('.*' + re.escape(fieldValue) + '.*', re.IGNORECASE)
                return re.match(pattern, acListEntry)
                
            self.matchesFunction = matches

        
        Entry.__init__(self,*args, **kwargs)
        self.focus()

        self.autocompleteList = autocompleteList
        
        self.var = self["textvariable"]
        if self.var == '':
            self.var = self["textvariable"] = StringVar()

        self.var.trace('w', self.changed)
        self.bind("<Right>", self.selection)
        self.bind("<Up>", self.moveUp)
        self.bind("<Down>", self.moveDown)
        
        self.listboxUp = False

    def changed(self, name, index, mode):
        if self.var.get() == '':
            if self.listboxUp:
                self.listbox.destroy()
                self.listboxUp = False
        else:
            words = self.comparison()
            if words:
                if not self.listboxUp:
                    self.listbox = Listbox(width=self["width"], height=self.listboxLength)
                    self.listbox.bind("<Button-1>", self.selection)
                    self.listbox.bind("<Double-Button-1>", self.selection)
                    self.listbox.bind("<Right>", self.selection)
                    self.listbox.place(x=self.winfo_x(), y=self.winfo_y() + self.winfo_height())
                    self.listboxUp = True
                
                self.listbox.delete(0, END)
                for w in words:
                    self.listbox.insert(END,w)
            else:
                if self.listboxUp:
                    self.listbox.destroy()
                    self.listboxUp = False
        
    def selection(self, event):
        if self.listboxUp:
            self.var.set(self.listbox.get(ACTIVE))
            self.listbox.destroy()
            self.listboxUp = False
            self.icursor(END)

    def moveUp(self, event):
        if self.listboxUp:
            if self.listbox.curselection() == ():
                index = '0'
            else:
                index = self.listbox.curselection()[0]
                
            if index != '0':                
                self.listbox.selection_clear(first=index)
                index = str(int(index) - 1)
                
                self.listbox.see(index) # Scroll!
                self.listbox.selection_set(first=index)
                self.listbox.activate(index)

    def moveDown(self, event):
        if self.listboxUp:
            if self.listbox.curselection() == ():
                index = '0'
            else:
                index = self.listbox.curselection()[0]
                
            if index != END:                        
                self.listbox.selection_clear(first=index)
                index = str(int(index) + 1)
                
                self.listbox.see(index) # Scroll!
                self.listbox.selection_set(first=index)
                self.listbox.activate(index) 

    def comparison(self):
        return [ w for w in self.autocompleteList if self.matchesFunction(self.var.get(), w) ]

if __name__ == '__main__':
    autocompleteList = [ 'Dora Lyons (7714)', 'Hannah Golden (6010)', 'Walker Burns (9390)', 'Dieter Pearson (6347)', 'Allen Sullivan (9781)', 'Warren Sullivan (3094)', 'Genevieve Mayo (8427)', 'Igor Conner (4740)', 'Ulysses Shepherd (8116)', 'Imogene Bullock (6736)', 'Dominique Sanchez (949)', 'Sean Robinson (3784)', 'Diana Greer (2385)', 'Arsenio Conrad (2891)', 'Sophia Rowland' ]
    def matches(fieldValue, acListEntry):
        pattern = re.compile(re.escape(fieldValue) + '.*', re.IGNORECASE)
        return re.match(pattern, acListEntry)
    
    entry = AutocompleteEntry(autocompleteList, page2, listboxLength=6, matchesFunction=matches)
    entry.grid(row=1, column=1)
    e1=Label (page2, font=('arial',9,'bold'),text='''afm :''')
    e1.grid(row=1, column=0,sticky=E)
    e3=Entry(page2, state='readonly', readonlybackground='mintcream')
    e3.grid(row=2, column=1)
  
w1.mainloop()