#!/usr/bin/python
# -*- coding: utf-8 -*-
#
"""
    Provides menu structure functionalities.
    
    Name: tk_menu.py
    Author: Alessandro dos Santos Ferreira ( santosferreira.alessandro@gmail.com )
"""

import sys
if sys.version_info[0] < 3:
    import Tkinter as Tk
else:
    import tkinter as Tk

from tk_itemmenu import *

class Menu(object):
    
    parent = None
    label = None
    _items_menu = None
    
    def __init__(self, parent, label):
        self.parent = parent
        self.label = label
        self._items_menu = []
        

    def add_command(self, label, action, shortcut):
        self._items_menu.append( Command(self, label, action, shortcut) )
        
    def add_separator(self):
        self._items_menu.append( Separator(self) )
        
    def add_check_button(self, label, action, shortcut):
        self._items_menu.append( CheckButton(self, label, action, shortcut) )

    def render(self, menubar):
        menu = Tk.Menu(menubar, tearoff=0)
        
        for item in self._items_menu:
            item.render(menu)
            
            if item.shortcut is not None:
                self.parent.bind("<Control-Key-" + item.shortcut + ">", item.action)
                self.parent.bind("<Control-Key-" + item.shortcut.lower() + ">", item.action)
            
        menubar.add_cascade(label=self.label, menu=menu)