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#!/bin/env python3
#
# Dialog class for tkinter
import os
import tkinter
from tkinter import ttk
class Dialog(tkinter.Toplevel):
def __init__(self, parent, message = None, title = None, seed = None, border = 'blue', **kwargs):
tkinter.Toplevel.__init__(self, parent)
self.transient(parent)
if title:
self.title(title)
self.configure(background=border, padx=2, pady=2)
self.obox = ttk.Frame(self)
self.obox.pack(side = 'left', fill = 'both', expand = 'true')
self.parent = parent
self.result = None
body = ttk.Frame(self.obox)
self.initial_focus = self.body(body, message, seed, **kwargs)
body.pack(padx = 5, pady = 5)
self.buttonbox()
self.grab_set()
if not self.initial_focus:
self.initial_focus = self
self.protocol("WM_DELETE_WINDOW", self.cancel)
self.geometry("+%d+%d" % (parent.winfo_rootx() + 50,
parent.winfo_rooty() + 50))
self.initial_focus.focus_set()
self.wait_window(self)
# Construction hooks
def body(self, master, **kwargs):
# Create dialog body. Return widget that should have
# initial focus. This method should be overridden
pass
def buttonbox(self):
# Add standard button box. Override if you don't want the
# standard buttons
box = ttk.Frame(self.obox)
self.okb = ttk.Button(box, text="OK", width=10, command=self.ok, default='active')
self.okb.pack(side='left', padx=5, pady=5)
w = ttk.Button(box, text="Cancel", width=10, command=self.cancel)
w.pack(side='left', padx=5, pady=5)
self.bind("<Return>", self.ok)
self.bind("<Escape>", self.cancel)
box.pack(fill='x', expand='true')
# Standard button semantics
def ok(self, event=None):
if not self.validate():
self.initial_focus.focus_set() # put focus back
return
self.withdraw()
self.update_idletasks()
self.result = self.apply()
self.cancel()
def cancel(self, event=None):
# Put focus back to the parent window
self.parent.focus_set()
self.destroy()
def validate(self):
return 1 # Override this
def apply(self):
return None # Override this
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