from tkinter import *
from tkinter.ttk import *
from tkinter import Menubutton
from dialogs import ConnectionDialog

class ApplicationMenu:
	
	def __init__(self, root):
		###
		# Make a reference to the tk root window in the ApplicationMenu 
		self.root = root
		
		###
		# Create the menubar
		self.menubar = Frame(self.root, relief=RAISED, borderwidth=1)
		self.menubar.pack(anchor=N, fill=X)
		self.filemenu = Menubutton(self.menubar,
			text="File",
			underline=0,
			)
		
		self.filemenu.pack(side=LEFT)
		self.filemenu.menu = Menu(self.filemenu, tearoff=False)
		
		# Create the "File" menu
		self.filemenu.menu.add_command(label="New...",
			accelerator="Ctrl+N",
			command=self.new,
			)
		self.filemenu.menu.add_command(label="Open...",
			accelerator="Ctrl+O",
			command=self.open_,
			)
		self.filemenu.menu.add_command(label="Import...",
			command=self.import_, 
			accelerator="Ctrl+I",
			)
		self.filemenu.menu.add_separator()
		self.filemenu.menu.add_command(label="Export...",
			command=self.export, 
			accelerator="Ctrl+E",
			)		
		self.filemenu.menu.add_separator()
		self.filemenu.menu.add_command(label="Save",
			command=self.save, 
			accelerator="Ctrl+S",
			)		
		self.filemenu.menu.add_separator()
		self.filemenu.menu.add_command(label="Quit",
			command=root.quit,
			accelerator="Ctrl+Q",
			)
		# Create the "Edit" menu
		self.editmenu = Menubutton(self.menubar, text="Edit", underline=0)
		self.editmenu.pack(side=LEFT)
		self.editmenu.menu = Menu(self.editmenu, tearoff=False)
		
		self.editmenu.menu.add_command(label="Settings...",
			command=self.settings,
			)
			
		# Add the menus to the menubar
		self.filemenu["menu"] = self.filemenu.menu
		self.editmenu["menu"] = self.editmenu.menu
		
		# Bind events to the methods "enabling" the accelerators
		self.root.bind("<Control-o>", 
			self.open_,
			)
		self.root.bind("<Control-q>",
			self.quit,
			)
		self.root.bind("<Button-3>",
			self.location,
			)
	
	###
	# The functions
	def location(self, event=None):
		print(dir(event))
		
		self.filemenu.tk_popup(event.x_root,event.y_root)
	
	def open_(self, event=None):
		"""Opens up a database connection dialog to establish a 
		connection to an existing database
		"""
		ConnectionDialog(self.root)
		
	def new(self,event=None):
		"""Creates a new database and connects to it
		"""
		print(dir(event))
		pass
	
	def import_(self, event=None):
		pass
	
	def export(self, event=None):
		pass
	
	def save(self, event=None):
		pass
	
	def close(self, event=None):
		pass
		
	def quit(self,event=None):
		###
		# TODO
		# A check to see if there are unsaved changes in the 
		# application before exit needs to be implemented.
		self.root.destroy()
		
	def settings(self, event=None):
		pass