try:
from Tkinter import Label, Frame, Toplevel, Entry
from Tkconstants import *
from ttk import Separator
except ImportError:
from tkinter import Label, Frame, Toplevel, Entry
from tkinter.constants import *
from tkinter.ttk import Separator
try:
basestring
except NameError:
basestring = str
class Listbox(Frame):
def __init__(self, master, options, width=20, bordercolor="#cccccc", foreground="black", background="white", activebackground="#2780E3", activeforeground="white",padx=15, pady=7, command=None):
Frame.__init__(self, master, background=background, highlightbackground=bordercolor, highlightcolor=bordercolor, highlightthickness=1, bd= 0)
self._foreground = foreground
self._background = background
self._activebackground = activebackground
self._activeforeground = activeforeground
self._items = []
index = 0
for option in options:
if option is None:
Separator(self, orient=HORIZONTAL).pack(fill=X)
continue
if isinstance(option, basestring):
test = option
value = option
else:
text, value = option
label_item = Label(self, width=width, text=text, background=background, foreground="black", anchor=W, padx=padx, pady=pady)
label_item.pack(fill=X)
label_item.index = index
label_item.value = value
label_item.bind("<Enter>", self._on_enter_label_item)
label_item.bind("<Leave>", self._on_leave_label_item)
label_item.bind("<1>", lambda event, index=index:self._on_click_item(event.widget, index))
self._items.append(label_item)
index += 1
self._actived_item = None
self._command = command
self.bind("<Up>", self._on_up)
self.bind("<Down>", self._on_down)
self.bind("<Return>", self._on_return)
def _on_return(self, event):
if self._command is not None:
if self._actived_item is not None:
self._command(self._actived_item.value)
def _activate_colors(self, label_item):
label_item.configure(background=self._activebackground, foreground=self._activeforeground)
def _deactivate_colors(self, label_item):
label_item.configure(background=self._background, foreground=self._foreground)
def _on_enter_label_item(self, event):
label_item = event.widget
self._activate_colors(label_item)
self._actived_item = label_item
def _on_leave_label_item(self, event):
label_item = event.widget
self._deactivate_colors(label_item)
def _on_click_item(self, label_item, index):
if self._actived_item != label_item:
self._deactivate_colors(self._actived_item)
self._activate_colors(label_item)
self._actived_item = label_item
self.focus_set()
if self._command is not None:
self._command(label_item.value)
def _on_up(self, event):
if self._actived_item is None:
label_item = self._items[0]
self._actived_item = label_item
self._activate_colors(label_item)
else:
index = self._actived_item.index
if index == 0: return
index -= 1
self._deactivate_colors(self._actived_item)
self._actived_item = self._items[index]
self._activate_colors(self._actived_item)
def _on_down(self, event):
if self._actived_item is None:
label_item = self._items[0]
self._actived_item = label_item
self._activate_colors(label_item)
else:
index = self._actived_item.index
if index == len(self._items) - 1: return
index += 1
self._deactivate_colors(self._actived_item)
self._actived_item = self._items[index]
self._activate_colors(self._actived_item)
if __name__ == "__main__":
try:
from Tkinter import Tk
except ImportError:
from tkinter import Tk
root = Tk()
def command(value):
print("selected value: %s"%value)
listbox = Listbox(root, options=(("Spain", "es"), None, ("USA", "us"), ("France","fr"), ("Britain", "br")), command=command)
listbox.pack()
listbox.focus()
root.mainloop()
Diff to Previous Revision
--- revision 1 2017-04-16 00:35:09
+++ revision 2 2017-04-16 16:48:22
@@ -14,7 +14,7 @@
class Listbox(Frame):
def __init__(self, master, options, width=20, bordercolor="#cccccc", foreground="black", background="white", activebackground="#2780E3", activeforeground="white",padx=15, pady=7, command=None):
- Frame.__init__(self, background=background, highlightbackground=bordercolor, highlightcolor=bordercolor, highlightthickness=1, bd= 0)
+ Frame.__init__(self, master, background=background, highlightbackground=bordercolor, highlightcolor=bordercolor, highlightthickness=1, bd= 0)
self._foreground = foreground
self._background = background
