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

"""
**nodes.py**

**Platform:**
	Windows, Linux, Mac Os X.

**Description:**
	This module defines the :class:`umbra.components.factory.traceUi.traceUi.TraceUi`
	Component Interface class nodes.

**Others:**

"""

#**********************************************************************************************************************
#***	External imports.
#**********************************************************************************************************************
from PyQt4.QtCore import Qt

#**********************************************************************************************************************
#***	Internal imports.
#**********************************************************************************************************************
import foundations.exceptions
import foundations.verbose
import foundations.trace
import umbra.ui.nodes

#**********************************************************************************************************************
#***	Module attributes.
#**********************************************************************************************************************
__author__ = "Thomas Mansencal"
__copyright__ = "Copyright (C) 2008 - 2012 - Thomas Mansencal"
__license__ = "GPL V3.0 - http://www.gnu.org/licenses/"
__maintainer__ = "Thomas Mansencal"
__email__ = "thomas.mansencal@gmail.com"
__status__ = "Production"

__all__ = ["LOGGER", "ModuleNode"]

LOGGER = foundations.verbose.installLogger()

#**********************************************************************************************************************
#***	Module classes and definitions.
#**********************************************************************************************************************
class ModuleNode(umbra.ui.nodes.GraphModelNode):
	"""
	This class factory defines :class:`umbra.components.factory.traceUi.traceUi.TraceUi`
	Component Interface class **Module** node.
	"""

	__family = "ModuleNode"

	def __init__(self,
				module=None,
				name=None,
				parent=None,
				children=None,
				roles=None,
				nodeFlags=int(Qt.ItemIsSelectable | Qt.ItemIsEnabled),
				attributesFlags=int(Qt.ItemIsSelectable | Qt.ItemIsEnabled),
				**kwargs):
		"""
		This method initializes the class.

		:param module: Module.  ( Module )
		:param name: Node name.  ( String )
		:param parent: Node parent. ( GraphModelNode )
		:param children: Children. ( List )
		:param roles: Roles. ( Dictionary )
		:param nodeFlags: Node flags. ( Integer )
		:param attributesFlags: Attributes flags. ( Integer )
		:param \*\*kwargs: Keywords arguments. ( \*\* )
		"""

		LOGGER.debug("> Initializing '{0}()' class.".format(self.__class__.__name__))

		umbra.ui.nodes.GraphModelNode.__init__(self, name, parent, children, roles, nodeFlags, **kwargs)

		# --- Setting class attributes. ---
		self.__module = module

		ModuleNode.__initializeNode(self, attributesFlags)

	#******************************************************************************************************************
	#***	Attributes properties.
	#******************************************************************************************************************
	@property
	def module(self):
		"""
		This method is the property for **self.__module** attribute.

		:return: self.__module. ( Object )
		"""

		return self.__module

	@module.setter
	@foundations.exceptions.handleExceptions(foundations.exceptions.ProgrammingError)
	def module(self, value):
		"""
		This method is the setter method for **self.__module** attribute.

		:param value: Attribute value. ( Object )
		"""

		raise foundations.exceptions.ProgrammingError(
		"{0} | '{1}' attribute is read only!".format(self.__class__.__name__, "module"))

	@module.deleter
	@foundations.exceptions.handleExceptions(foundations.exceptions.ProgrammingError)
	def module(self):
		"""
		This method is the deleter method for **self.__module** attribute.
		"""

		raise foundations.exceptions.ProgrammingError(
		"{0} | '{1}' attribute is not deletable!".format(self.__class__.__name__, "module"))

	#******************************************************************************************************************
	#***	Class methods.
	#******************************************************************************************************************
	def __initializeNode(self, attributesFlags=int(Qt.ItemIsSelectable | Qt.ItemIsEnabled)):
		"""
		This method initializes the node.
		
		:param attributesFlags: Attributes flags. ( Integer )
		"""

		self["traced"] = umbra.ui.nodes.GraphModelAttribute(name="traced",
															value=foundations.trace.isTraced(self.__module),
															flags=attributesFlags)
		self.updateNodeAttributes()

	def updateNodeAttributes(self, attributesFlags=int(Qt.ItemIsSelectable | Qt.ItemIsEnabled)):
		"""
		This method updates the Node attributes.
		
		:param attributesFlags: Attributes flags. ( Integer )
		:return: Method success. ( Boolean )
		"""

		self.traced.value = foundations.trace.isTraced(self.__module)
		self.traced.roles[Qt.DisplayRole] = foundations.strings.encode(self.traced.value).title()
