# -*- coding: utf-8 -*-
"""Labeled combobox widget.
The goal of these widgets is twofold: to make it easier for developers
to implement dialogs with compound widgets, and to naturally
standardize the user interface presented to the user.
"""
import logging
import seamm_widgets as sw
import tkinter as tk
import tkinter.ttk as ttk
logger = logging.getLogger(__name__)
options = {
'combobox':
{
'class_': 'class_',
'cursor': 'cursor',
'exportselection': 'exportselection',
'justify': 'justify',
'height': 'height',
'postcommand': 'postcommand',
'state': 'state',
'style': 'style',
'takefocus': 'takefocus',
'variable': 'textvariable',
'values': 'values',
'width': 'width'
},
}
[docs]class LabeledCombobox(sw.LabeledWidget):
def __init__(self, parent, *args, **kwargs):
"""Initialize the instance
"""
class_ = kwargs.pop('class_', 'MLabeledCombobox')
super().__init__(parent, class_=class_)
interior = self.interior
# combobox
height = kwargs.pop('height', 7)
width = kwargs.pop('width', 20)
state = kwargs.pop('state', 'normal')
self.combobox = ttk.Combobox(
interior, height=height, width=width, state=state
)
self.combobox.grid(row=0, column=0, sticky=tk.EW)
# interior frame
self.interior = ttk.Frame(interior)
self.interior.grid(row=0, column=1, sticky=tk.NSEW)
interior.columnconfigure(0, weight=1)
self.config(**kwargs)
@property
def value(self):
return self.get()
@value.setter
def value(self, value):
self.set(value)
[docs] def show(self, *args):
"""Show only the specified subwidgets.
'all' or no arguments reverts to showing all"""
super().show(*args)
show_all = (len(args) == 0 or args[0] == 'all')
if show_all or 'combobox' in args:
self.combobox.grid(row=0, column=0, sticky=tk.EW)
else:
self.combobox.grid_forget()
[docs] def set(self, value):
"""Set the value of the widget"""
if value is None:
return
self.combobox.set(value)
[docs] def get(self):
"""return the current value"""
value = self.combobox.get()
return value
[docs] def config(self, **kwargs):
"""Set the configuration of the megawidget"""
# our options that we deal with
combobox = options['combobox']
# cannot modify kwargs while iterating over it...
keys = [*kwargs.keys()]
for k in keys:
if k in combobox:
v = kwargs.pop(k)
self.combobox.config(**{combobox[k]: v})
# having removed our options, pass rest to parent
super().config(**kwargs)