#!/usr/bin/env python
# -*- coding:utf-8 -*-

import os
import wx

def messageDialog(message, caption=wx.MessageBoxCaptionStr, style=wx.OK | wx.ICON_INFORMATION):
	"""Utility method to create a generic message dialog"""
	dial = wx.MessageDialog(None, message, caption, style)
	return dial.ShowModal()
	
def fileDialog(mode, message, fileTypes = None, dir = wx.EmptyString):
	"""Utility method to create a generic file dialog"""
	wc = wx.FileSelectorDefaultWildcardStr if fileTypes is None else "|".join([ descr + " (*" +  ext + ")|*" + ext for descr, ext in fileTypes])
	diag = wx.FileDialog(None, message, defaultDir=dir, wildcard = wc, style=mode)
	diag.ShowModal()
	return os.path.join(diag.Directory,diag.Filename) if diag.Filename != "" else None
	
def displayError(message, caption = 'An error occured'):
	"""Specialised utility method for error dialogs"""
	return messageDialog(message, caption, wx.OK | wx.ICON_ERROR) == wx.OK
	
def displayInformation(message, caption='Warning'):
	"""Specialised utility method for information dialogs"""
	return messageDialog(message, caption, wx.OK | wx.ICON_INFORMATION) == wx.OK
	
def displayQuestion(message, caption='Question'):
	"""Specialised utility method for question dialogs"""
	return messageDialog(message, caption, wx.YES_NO | wx.NO_DEFAULT | wx.ICON_QUESTION)
	
def loadFileDialog(message = "Load File", fileTypes = None, dir = wx.EmptyString):
	"""Specialised utility method for file loading dialogs"""
	return fileDialog(mode = wx.FD_OPEN, message= message, fileTypes = fileTypes, dir = dir)
	
def saveFileDialog(message = "Save File", fileTypes = None, dir = wx.EmptyString):
	"""Specialised utility method for file saving dialogs"""
	return fileDialog(mode = wx.FD_SAVE | wx.FD_OVERWRITE_PROMPT, message= message, fileTypes = fileTypes, dir = dir)