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

# PyClicUser application, Useristration interface

import pygtk
pygtk.require('2.0')
import gtk
import cairo
import math
from xml.dom import minidom
import os
import sys
from pyclic_common import PyClicCommon

MAIN_TAG = 0
QUIZ_TAG = 1
CATEGORY_TAG = 2
TITLE_TAG = 3
COLOR_TAG = 4
IMAGE_TAG = 5
AUTHOR_TAG = 6
QUESTIONS_TAG = 7
QUESTION_TAG = 8
COORDINATES_TAG = 9
ENTRY_TAG = 10

FILE_EXT = "pcx"

class PyClicUser:
 
    def on_file_open(self, widget):
	self.on_file_new(self.window)	
	xml_file = self.pcc.file_browse(gtk.FILE_CHOOSER_ACTION_OPEN)
	
	#If we have a xml_file
	if (xml_file):
		if (self.xml_load_from_file(xml_file)):
			"""Allright it all worked! save the current file and
			set the title."""
			self.xml_file = xml_file
			self.pcc.set_window_title_from_file(self.xml_file,self.window)


    def xml_load_from_file(self, xml_file):
	"""Load a quiz from an xml file
	@param xml_file - string - path to file that
	we will load.
	@returns boolean - True success. False failure
	"""
	#Init return value
	success = False

	#Load the xml_file to a document
	try:
		xml_document = minidom.parse(xml_file)
		if (xml_document):
			success = ((self.xml_load(xml_document)))
	except IOError, (errno, strerror):
		self.show_error_dlg(
			"Error loading quiz file(%s): %s" % (errno, strerror))
	return success

    def xml_load(self, xml_document):
        """Load the current quiz from an xml document.
        @param xml_document - xml.dom.minidom.Document object -
        The xml document that we will load the quiz from.
        @returns boolean True - success.  False - Failure."""

        title_loaded = False
        category_loaded = False
        question_loaded = False
        author_loaded = False
	image_loaded = False
	coordinates_loaded = False
	entries_loaded = False
	questions_loaded = False
	colors_loaded = False
	# reset all values before loading document
	self.on_file_new(self)
        #Loop through all child nodes of the root.
        for node in xml_document.documentElement.childNodes:
                #We are looking for the quiz Node
                if (node.nodeName == PyClicCommon._xml_tags[QUIZ_TAG]):
                        # Now loop through the quiz nodes children
                        for item_node in node.childNodes:
                                if (item_node.nodeName == PyClicCommon._xml_tags[TITLE_TAG]):
                                        """Set the title, the firstChild in this case is
                                        the actual title text that we saved."""

                                        #Make sure it's not a blank string
                                        if (item_node.firstChild):
                                                self.title_label.set_text("Title: " + item_node.firstChild.nodeValue)
                                        else:
                                                print "nasti"
                                        title_loaded = True
                                elif (item_node.nodeName == PyClicCommon._xml_tags[CATEGORY_TAG]):
                                        """Set the category, the firstChild in this case is
                                        the actual category that we saved."""
                                        #Make sure it's not a blank string
                                        if (item_node.firstChild):
						self.title_category.set_text("Subject: " + item_node.firstChild.nodeValue)
                                        else:
                                                print "nasti"
                                        category_loaded = True
                                elif (item_node.nodeName == PyClicCommon._xml_tags[AUTHOR_TAG]):
                                        """Set the author, the firstChild in this case is
                                        the actual author that we saved."""
                                        #Make sure it's not a blank string
                                        if (item_node.firstChild):
                                                self.author_label.set_text("Author: " + item_node.firstChild.nodeValue)
                                        else:
                                                print "nasti"
                                        author_loaded = True
                       	        #Break out of the topmost for loop
                                elif (item_node.nodeName == PyClicCommon._xml_tags[IMAGE_TAG]):
                                        """Set the image, the firstChild in this case is
                                        the image that we saved. Then decode from base64"""
                                        #Make sure it's not a blank string
                                        if (item_node.firstChild):
                                                self.image = self.pcc.decode64(item_node.firstChild.nodeValue)
						self.window.queue_draw()
                                        else:
                                                print "nasti"
                                        image_loaded = True
                       	        #Break out of the topmost for loop
                                elif (item_node.nodeName == PyClicCommon._xml_tags[COLOR_TAG]):
                                        """Set the image, the firstChild in this case is
                                        the image that we saved. Then decode from base64"""
                                        #Make sure it's not a blank string
                                        if (item_node.firstChild):
						self.colourred,self.colourgreen,self.colourblue = item_node.firstChild.nodeValue.split(",")
						self.colorred=self.colourred.replace('[', '')
						self.colorred=float(self.colorred)
						self.colorgreen=float(self.colourgreen)
						self.colorblue=self.colourblue.replace(']', '')
						self.colorblue=float(self.colorblue)
                                                self.window.queue_draw()
                                        else:
                                                print "nasti"
                                        colors_loaded = True
                        #Break out of the topmost for loop                       
		#We are looking for the quiz Node
                elif (node.nodeName == PyClicCommon._xml_tags[QUESTIONS_TAG]):
                        # Now loop through the question nodes children
                        for item_node in node.childNodes:
				self.questions_list=[]
				if (item_node.nodeName == PyClicCommon._xml_tags[QUESTION_TAG]):
                                        """Grab all the questions."""

                                        #Make sure it's not a blank string
                                        if (item_node.firstChild):
                                                self.questions_list.append(item_node.firstChild.nodeValue)
						for question in self.questions_list:
							self.label=gtk.Label("Question: " + question)
							self.label_list.append(self.label)
							self.vbox2.pack_start(self.label,False,False,0)
							self.label.show()
                                        else:
                                                print "nasti"
                                        question_loaded = True
				self.coordinate=[]
				if (item_node.nodeName == PyClicCommon._xml_tags[COORDINATES_TAG]):
                                        """Grab all the coordinates."""

                                        #Make sure it's not a blank string
                                        if (item_node.firstChild):
                                                self.coordinate.append(item_node.firstChild.nodeValue)
						for coordinate in self.coordinate:
							x,y = coordinate.split(",")
							self.coordinates.append((float(x),float(y)))
							self.window.queue_draw()
							
							
                                        else:
                                                print "nasti"
                                        coordinates_loaded = True					
				self.entradas=[]
				if (item_node.nodeName == PyClicCommon._xml_tags[ENTRY_TAG]):
                                        """Grab all the entries."""

                                        #Make sure it's not a blank string
                                        if (item_node.firstChild):
                                                self.entradas.append(item_node.firstChild.nodeValue)
						for entry in self.entradas:
							# self.entry=gtk.Entry(max=15)
							#  self.answer=gtk.Label(self.show_answer(item_node.firstChild.nodeValue))
							# self.entry.set_text(self.show_answer(item_node.firstChild.nodeValue))
							# self.entry_list.append(self.answer)
        						self.word=self.show_answer(item_node.firstChild.nodeValue)
							self.entry_list.append(self.word)
							self.vbox2.add(self.word)
							# self.vbox2.pack_start(self.word,False,False,0)
							# self.vbox2.pack_start(self.answer,False,False,0)
							self.word.show()
                                        else:
                                                print "nasti"
                                        entries_loaded = True
			break
        return (title_loaded and category_loaded and author_loaded and image_loaded and entries_loaded and question_loaded and colors_loaded and coordinates_loaded)



    def xml_save(self, xml_document):
	"""Save the current quiz to an xml document.
	@param xml_document - xml.dom.minidom.Document object -
	The xml document that we will save the post to."""

	#create <quiz></quiz>
	quiz_element = xml_document.createElement(PyClicCommon._xml_tags[QUIZ_TAG])
	#create <category></category>
	category_element = xml_document.createElement(PyClicCommon._xml_tags[CATEGORY_TAG])
	#Create <category>category</category>
	category_element.appendChild(xml_document.createTextNode(self.Category))
	#Creates <image></image>
	image_element = xml_document.createElement(PyClicCommon._xml_tags[IMAGE_TAG])
	#Create <IMAGE>image<IMAGE>
	image_element.appendChild(xml_document.createTextNode(self.Image))	
	#Creates <title></title>
	title_element = xml_document.createElement(PyClicCommon._xml_tags[TITLE_TAG])
	#Creates <title>title</title>
	title_element.appendChild(xml_document.createTextNode(self.Title))
	#Creates <author></author>
	author_element = xml_document.createElement(PyClicCommon._xml_tags[AUTHOR_TAG])
	#Creates <author>author</author>
	author_element.appendChild(xml_document.createTextNode(self.Author))
	#Creates <color></color>
	color_element = xml_document.createElement(PyClicCommon._xml_tags[COLOR_TAG])
	#turn color into list
	colourvalues = []
	colourvalues.append(self.colorred)
	colourvalues.append(self.colorgreen)
	colourvalues.append(self.colorblue)
	#Creates <color>author</color>
	color_element.appendChild(xml_document.createTextNode(str(colourvalues)))
	quiz_element.appendChild(category_element)
	quiz_element.appendChild(title_element)
	quiz_element.appendChild(image_element)
	quiz_element.appendChild(author_element)
	quiz_element.appendChild(color_element)
	#Now add to the xml document
	xml_document.documentElement.appendChild(quiz_element)
	#create <questions></questions>
	questions_element = xml_document.createElement(PyClicCommon._xml_tags[QUESTIONS_TAG])
	Iterate = 0
	question = 1
	while Iterate < len(self.coordinates):		
		#Create <question></question>
		question_element = xml_document.createElement(PyClicCommon._xml_tags[QUESTION_TAG])
		#create <question>question<question>
		question_element.appendChild(xml_document.createTextNode(str(question)))
		c = self.coordinates[Iterate]
		#Create <coordinates></coordinates>
		coordinates_element = xml_document.createElement(PyClicCommon._xml_tags[COORDINATES_TAG])
		#create <coordinates>x,y<coordinates>
		coordinates_element.appendChild(xml_document.createTextNode("%d,%d" % (c[0],c[1])))
		#Create <entry></entry>
		entry_element = xml_document.createElement(PyClicCommon._xml_tags[ENTRY_TAG])
		#create <entry>entry<entry>
		entry_element.appendChild(xml_document.createTextNode(self.Entries[Iterate]))
		
		#Add above to <questions>
		questions_element.appendChild(question_element)
		questions_element.appendChild(coordinates_element)
		questions_element.appendChild(entry_element)
		Iterate=Iterate+1
		question=question+1
	#Now add to the xml document
	xml_document.documentElement.appendChild(questions_element)

    def xml_save_to_file(self, widget):
	"""Save the current post to xml_file
	@param xml_file - string - path to file that
	we will save the xml to.
	@returns boolean - True success. False failure
	"""
	#Init return value
	success = False

	#Get the available DOM Implementation
	impl = minidom.getDOMImplementation()
	#Create the document, with PyClicUser as to base node
	xml_document = impl.createDocument(None, PyClicCommon._xml_tags[MAIN_TAG], None)
	#Save the questions into the xml
	self.xml_save(xml_document)
	#Now actually try to save the file
	try:
		save_file = open(self.xml_file, 'w')
		#write the xml document to disc
		xml_document.documentElement.writexml(save_file)
		save_file.close()
	except IOError, (errno, strerror):
		self.show_error_dlg(
			"Error saving quiz(%s): %s" % (errno, strerror))
	else:
		#Allright it all worked! Set the return value
		success = True

	return success


#     # open image file self.chooser with filter for just image types	
#     def open_image(self,widget):
# 	self.chooser = gtk.FileChooserDialog(title="Open Image",action=gtk.FILE_CHOOSER_ACTION_OPEN,buttons=(gtk.STOCK_CANCEL,gtk.RESPONSE_CANCEL,gtk.STOCK_OPEN,gtk.RESPONSE_OK))
# 	filter = gtk.FileFilter()
# 	filter.set_name("Images")
# 	filter.add_mime_type("image/png")
# 	filter.add_pattern("*.png")
# 	self.chooser.add_filter(filter)
# 
# 	response = self.chooser.run()
# 	if response == gtk.RESPONSE_OK:
# 		self.image=self.image.create_from_png(self.chooser.get_filename())
# 		self.image_scale(self.image)
# 		self.image_filename=self.chooser.get_filename()
# 		self.image=self.image.create_from_png(self.chooser.get_filename())
# 		self.darea.queue_draw()
#    	elif response == gtk.RESPONSE_CANCEL:
#       		print 'Closed, no files selected'
#    	self.chooser.destroy()

    def image_scale(self,image):
	self.width=self.image.get_width()
	self.height=self.image.get_height()
	imgpat = cairo.SurfacePattern(self.image)

	scaler = cairo.Matrix()
	#image width/640*100,image height/480
	scaler.scale(self.width/640.0,self.height/480.0)
	imgpat.set_matrix(scaler)

	#set resampling filter
	imgpat.set_filter(cairo.FILTER_BEST)	
	canvas = cairo.ImageSurface(cairo.FORMAT_ARGB32,640,480)
	ctx = cairo.Context(canvas)
	ctx.set_source(imgpat)
	ctx.paint()
	canvas.write_to_png(self.chooser.get_filename())


#     def grab_click(self,widget,event):
# 	x, y = event.get_coords()
# 	self.coordinates.append((x,y))
# 	gc = widget.window.new_gc()
# 	widget.queue_draw()
# 
# 	self.label=gtk.Label(self.coordinates.index((x,y))+1)
# 	self.label_list.append(self.label)
# 	self.vbox2.pack_start(self.label,False,False,0)
# 	self.label.show()
# 
# 	self.entry=gtk.Entry(max=30)
# 	self.entry_list.append(self.entry)
# 
#         self.vbox2.pack_start(self.entry,False,False,0)
# 
# 	self.entry.show()

    def expose(self, widget, event):
	
	self.cr = widget.window.cairo_create()
        self.cr.set_source_surface(self.image)
        self.cr.paint()
	self.cr.select_font_face("Arial",cairo.FONT_SLANT_NORMAL,cairo.FONT_WEIGHT_BOLD)
	self.cr.set_font_size(16)

	for x,y in self.coordinates: 	
	
			
		self.cr.set_source_rgb(self.colorred,self.colorgreen,self.colorblue)
		self.cr.arc(x,y,14,0,2 * math.pi)
		self.cr.stroke
		self.cr.fill() 

		self.string="%s" %(self.coordinates.index((x,y))+1)
		self.cr.move_to(x-4,y+5)
		self.cr.set_source_rgb(1, 1, 1)

		self.cr.show_text(self.string)

    
    def get_active_text(combobox):
        model = combobox.get_model()
        active = combobox.get_active()
        if active < 0:
            return None
        return model[active][0]

    def encode64(self,filew):
 	   try:
 	      response = open(filew)
  	      data = response.read()

 	   except IOError, (errno, strerror):
  	      self.show_error_dlg("Error saving quiz(%s): %s" % (errno, strerror))

 	   return data.encode('base64')

    def on_file_save_as(self, widget):
	"""This function saves the current Quiz as an XML file using sub functions""" 
	# Let the user browse for the save location and name
	if (self.xml_file == None):
		self.xml_file = self.pcc.file_browse(gtk.FILE_CHOOSER_ACTION_SAVE)
	#If we have a xml_file
	if (self.xml_file):
		if (self.xml_save_to_file(self.xml_file)):
			#Allright it all worked! Set the Title
			self.pcc.set_window_title_from_file(self.xml_file,self.window)

    def on_file_save(self, widget):
	"""Let the user save the current file to a new location."""

	xml_file = "Untitled"
	if (self.xml_file != None):
		xml_file = os.path.basename(self.xml_file)

	xml_file = self.pcc.file_browse(gtk.FILE_CHOOSER_ACTION_SAVE, xml_file)
	# xml_file=xml_file + "answer.pcx"
	print xml_file
	#If we have a xml_file
# 	if (xml_file):
# 		if (self.xml_save_to_file(xml_file)):
# 			"""Allright it all worked! save the current file and
# 			set the title."""
# 			self.xml_file = xml_file
# 			# self.pcc.set_window_title_from_file(self.xml_file,self.window)
    def show_answer(self,text):
	#FUNCION que devuelve las rallitas necesarias para las respuestas#
	devolver = gtk.Fixed()	
	for i in range(len(text)):
		self.letra = gtk.Entry(max=1)
		self.letra.set_size_request(22,22)
		self.letra.set_sensitive(False)
		self.letra.show()
		devolver.put(self.letra, ( i * 19), 0)
	return(devolver)	
	
    def save_details(self,widget):
	self.Title = self.title_label.get_text()
	self.Author = self.author_label.get_text()
	self.Category = self.title_category.get_text()
	# save image to base64
	self.Image = self.encode64(self.image_filename)
	# function to grab entries from entry list
	self.Entries=[]
	for entry in self.entry_list:
		self.Entries.append(entry.get_text())
		
	self.on_file_save(file)

    def on_file_new(self,widget):
	for entry in self.entry_list:
		self.vbox2.remove(entry)
	for label in self.label_list:
		self.vbox2.remove(label)
	self.entry_list=[]
	self.Entries=[]
	self.coordinates=[]
	self.author_label.set_text("Author")	
	self.title_label.set_text("Title")
	self.question_list=[]
	self.xml_file = None
	self.entry=""
	self.window.queue_draw()

    def on_clicked(self, widget):
        cdia = gtk.ColorSelectionDialog("Select color")
        response = cdia.run()
              
        if response == gtk.RESPONSE_OK:
            colorsel = cdia.colorsel
            self.colour = colorsel.get_current_color()
            self.colorred = self.colour.red/65535.0
	    self.colorgreen = self.colour.green/65535.0
	    self.colorblue = self.colour.blue/65535.0
  
        cdia.destroy()
	self.window.queue_draw()

    def __init__(self):
        # create the main window, and attach delete_event signal to terminating
        # the application
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)

	#set icon for app
	try:
		self.window.set_icon_from_file("pyclicicon.png")
	except Exception, e:
		print e.message
		sys.exit(1)

	self.pcc=PyClicCommon()

        self.window.connect("delete_event", self.pcc.close_application)
	self.window.set_size_request(791,544)
        self.window.set_border_width(0)

	self.vbox2 = gtk.VBox(False, 2)
	self.vbox2.set_border_width(8)
	
	self.xml_file=None
	

	#Insert menubar containing 2 columns
	mb = gtk.MenuBar()
	filemenu = gtk.Menu()

	filem = gtk.MenuItem("File")
	filem.set_submenu(filemenu)

	newquiz = gtk.MenuItem("New File / Clear")
	newquiz.connect("activate",self.on_file_new)
	filemenu.append(newquiz)


	openquiz = gtk.MenuItem("Open Quiz")
	openquiz.connect("activate",self.on_file_open,self.xml_file)
	filemenu.append(openquiz)

	save = gtk.MenuItem("Save Quiz")
	save.connect("activate",self.save_details,self.xml_file)
	filemenu.append(save)

	exit = gtk.MenuItem("Exit")
	exit.connect("activate",gtk.main_quit)
	filemenu.append(exit)

 	helpmenu = gtk.Menu()
        help = gtk.MenuItem("Help")
        help.set_submenu(helpmenu)
	
        aboutm = gtk.MenuItem("About PyClicUser")
        aboutm.connect("activate",self.pcc.about_program)
        helpmenu.append(aboutm)

 
# 	open = gtk.MenuItem("Open Image")
# 	open.connect("activate",self.open_image)
# 	viewmenu.append(open)
# 
#         stat = gtk.MenuItem("Change Color")
#         stat.connect("activate", self.on_clicked)
#         viewmenu.append(stat)

	mb.append(filem)
	mb.append(help)
	self.hbox = gtk.HBox(False, 2)


	#define and start vertical area
	vbox = gtk.VBox(False, 2)
	vbox.pack_start(mb,False,False,0)
	
	#Insert Toolbar with open,save and exit
        toolbar = gtk.Toolbar()
        toolbar.set_style(gtk.TOOLBAR_ICONS)

        newtb = gtk.ToolButton(gtk.STOCK_CLEAR)
        opentb = gtk.ToolButton(gtk.STOCK_OPEN)
        savetb = gtk.ToolButton(gtk.STOCK_SAVE)
	# colortb = gtk.ToolButton(gtk.STOCK_SELECT_COLOR)
	# importtb = gtk.ToolButton(gtk.STOCK_ORIENTATION_PORTRAIT)
        sep = gtk.SeparatorToolItem()
        quittb = gtk.ToolButton(gtk.STOCK_QUIT)

        toolbar.insert(opentb, 0)
        toolbar.insert(savetb, 1)
        toolbar.insert(newtb, 2)
	# toolbar.insert(colortb,3)
	# toolbar.insert(importtb,4)
        toolbar.insert(sep, 3)
        toolbar.insert(quittb, 4)
        
        quittb.connect("clicked", gtk.main_quit)
	newtb.connect("clicked", self.on_file_new)
	opentb.connect("clicked", self.on_file_open)
	savetb.connect("clicked", self.save_details)
	#colortb.connect("clicked", self.on_clicked)
	# importtb.connect("clicked",self.open_image)

        vbox.pack_start(toolbar, False, False, 0)


        # A drawing area inside a fixed()

	fix = gtk.Fixed()
	self.darea=gtk.DrawingArea()
	self.image = cairo.ImageSurface.create_from_png("pyclic.png")
	self.image_filename="pyclic.png"
	self.darea.connect("expose_event", self.expose)
	# self.darea.set_events(gtk.gdk.BUTTON_PRESS_MASK)
	# self.darea.connect("button_press_event",self.grab_click)

	self.darea.set_size_request(606,540)
	fix.put(self.darea,0,0)

	#define coordinates list
	self.coordinates=[]

	#define text entries list
	self.entry_list=[]	

	self.label_list=[]

	self.question_list=[]

	#define color values for question circle
	self.colorred=0
	self.colorblue=0
	self.colorgreen=0

	# Layout
	self.window.add(vbox)
	vbox.add(self.hbox)
	self.hbox.add(fix)

	# Title and category entry boxes
	self.title_label=gtk.Label("Title")
	self.vbox2.pack_start(self.title_label,False,False,0)

	#self.title_entry=gtk.Entry(max=50)
	#self.vbox2.pack_start(self.title_entry,False,False,0)

	self.author_label=gtk.Label("Author")
	self.vbox2.pack_start(self.author_label,False,False,0)

	#self.author_entry=gtk.Entry(max=50)
	#self.vbox2.pack_start(self.author_entry,False,False,0)

	
	self.title_category=gtk.Label("Category")
	self.vbox2.pack_start(self.title_category,False,False,0)

# 	self.cb_category=gtk.combo_box_new_text()
# 	self.cb_category.connect("changed", self.on_changed)
# 	self.cb_category.append_text("Geography")
# 	self.cb_category.append_text("Science")
# 	self.cb_category.append_text("ICT")
# 	self.cb_category.append_text("Languages")
# 	self.cb_category.append_text("Maths")
# 	self.cb_category.append_text("Music")
# 	self.cb_category.append_text("History")
# 	self.cb_category.append_text("Business")
# 	self.cb_category.append_text("Art")
# 	self.vbox2.pack_start(self.cb_category,False,False,0)


	clear_button=gtk.Button("Clear")
	self.vbox2.pack_start(clear_button,False,False,0)
	clear_button.set_events(gtk.gdk.BUTTON_PRESS_MASK)
	clear_button.connect("clicked",self.on_file_new)
	clear_button.set_size_request(150, 25)

	#submit button for entries
	submit_button=gtk.Button("Submit")
	self.vbox2.pack_start(submit_button,False,False,0)
	submit_button.set_events(gtk.gdk.BUTTON_PRESS_MASK)
	submit_button.connect("clicked",self.save_details)


	self.scrollw = gtk.ScrolledWindow()
	self.scrollw.set_policy(gtk.POLICY_NEVER,gtk.POLICY_AUTOMATIC)
        self.hbox.pack_start(self.scrollw)
        self.scrollw.add_with_viewport(self.vbox2)

#	self.hbox.add(self.vbox2)

	self.window.show_all()

def main():
    gtk.main()
    return 0

if __name__ == "__main__":
    PyClicUser()
    main()