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path: root/ReckonPrimer.activity/exstore.py
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# -*- coding: utf-8 -*-

import gtk
import pygtk
import pango
import random
import copy
from sugar.graphics import style

from settings import Settings
from coach import Coach

from exercises.exaddsimp import ExAddSimp
from exercises import *
from exercises.exercise import Exercise


class ExStore:

    def __init__(self, display, coach):
        self._sett = Settings()
        #WN.LV diese Daten via pickle.load(...) holen ############
        self._data = [(self._sett.get_setting('addsub_simp'), []),
                      (self._sett.get_setting('passten'),     []),
                      (self._sett.get_setting('times_div'),   [])]
        #WN.LV [] ist die vorlaeufige Liste der errors ###########
        self._display = display
        self._coach = coach
        self._active_exerc = None
        self.__data = []
        self.__title = "Collection"
        self.__description = "Description"
        self.imagecollection = gtk.gdk.pixbuf_new_from_file(
            "./img/collection.png")
        self.imageexercise = gtk.gdk.pixbuf_new_from_file(
            "./img/exercise.png")

    def select(self, key):
        """ Select an exercise by key. return instance of an exercise.
        Errors are retrieved for (future) use by Coach. """
        #WN.LV Code ersetzen: key ist dann fuer Listen von Listen !!
        (_sett, _errors) = self._data[key]
        exercise_label = _sett['topic']

        if not Exercise.EXERCISES.has_key(exercise_label):
            raise Exception('Collection#select: Wrong key. To register an exercise see exercises/__init__.py')
    
        klass = Exercise.EXERCISES[exercise_label]
        package = __import__("exercises." + klass.lower())
        module = getattr(package, klass.lower())
        return getattr(module, klass)(self._display, (_sett, _errors))    


    #@# vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
    def define_coll_gui(self):
        """ Define gui-elements for presenting the collection.
        TODO: define once at startup of RP ?"""
        #WN.LV diesen Code ersetzen: exstore_table.attach(self.colldata,...
        self.topic_box = gtk.HBox(True, 0)
        #self._display.exstore_table.attach(self.topic_box, 0, 6, 0, 1)
        self._display.exstore_table.attach(self.topic_box, 0, 9, 5, 6)

    def set_coll_gui(self, coll_data):
        """ Set gui-elements according to Collection.data. """
        #WN.LV diesen Code ersetzen !!!!!
        _i = 0
        for _t in ['addsub_simp','passten','times_div']:
            self.button = gtk.Button()
            self.image = gtk.Image()
            
            if(_t == 'addsub_simp'):
                self.image.set_from_file("img/addsub_simp.jpg")
            elif(_t == 'passten'):
                self.image.set_from_file("img/passten.jpg")
            elif(_t == 'times_div'):
                self.image.set_from_file("img/times_div.jpg")

            self.button.set_image(self.image)
            self.button.connect("clicked", self.select_exerc_callback, _i)
            self.topic_box.pack_start(self.button)
            self.button.show()
            _i = _i + 1
        self.topic_box.show()
        #@# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
         
    def select_exerc_callback(self, widget, coll_key):
        """ Callback telling the item from the collection selected. """
        #WN.LV diesen Code ersetzen> statt 1..n fuer Listen kommt coll_key
        print('in Collection.select_exerc_callback')
        if(self._active_exerc == None):
            # at startup
            self._active_exerc = coll_key
            self._display.set_select_exerc_semaphore(coll_key)
            #self._coach.notify(('exerc-selected', coll_key))
        elif(self._active_exerc == coll_key):
            # hit the same button once more
            pass
        elif(self._active_exerc != coll_key):
            # switched to another exercise
            self._active_exerc = coll_key
            self._display.switch_exercise() # TODO rename
            self._display.set_select_exerc_semaphore(coll_key)
            #self._coach.notify(('exerc-selected', coll_key))
            
    
    def fill_store(self, ts, parent, list):
        """ Fill treestore with data from disk. """
        #c = CollectionTest()
        root = self.get_data_from_pickle()

        if list == None:
            list = root.getData()

        for i in range(len(list)):
            if isinstance(list[i], CollectionTest):
                olditer = ts.append(parent, [self.imagecollection, list[i].getTitle()])
                c_list = list[i].getData()
                self.fill_store(ts, olditer, c_list)
            else:
                text = list[i].getTitle() + ": " + list[i].getDescription()
                iter = ts.append(parent, [self.imageexercise, text])

    def getData(self):
        return self.__data

    def setData(self, data):
        self.__data = data

    def getTitle(self):
        return self.__title

    def setTitle(self, title):
        self.__title = title

    def getDescription(self):
        return self.__description

    def setDescription(self, description):
        self.__description = description

    ''' keep for need, TODO icon reformatting icon to string 
    def getPic(self):
        return self.__pic
    
    def setPic(self, pic):
        self.__pic = pic
    '''

    def get_data_from_pickle(self):
        path = os.path.join(os.getcwd(), "data/Collection.data")
        f = open(path, "rb")
        root = pickle.load(f)
        f.close()
        return root

    def set_data_in_pickle(self, root):
        path = os.path.join(os.getcwd(), "data/Collection.data")
        f = open(path, "wb")
        pickle.dump(root, f)
        f.close()


    def insert_object(self, obj, pos):
        root = self.get_data_from_pickle()
        list = root.getData()

        if (pos == None):
            list.append(obj) # sonderfall ganz hinten einfügen
        else:
            max = len(pos)
            for i in range(len(pos)):
                try:
                    if isinstance(list[pos[i]], CollectionTest):
                        list = list[pos[i]].getData()
                        if (i == (max - 1)):
                            list.append(obj)
                    else:
                        list.insert(pos[i], obj)
                except IndexError:
                    list.append(obj) # wenn in eigener collection verschoben wird, wurde ja element schon gelöscht daher passt index nicht mehr

        self.set_data_in_pickle(root)


    def get_object(self, pos):
        root = self.get_data_from_pickle()

        list = root.getData()

        # find object and return it to insert it in collection
        for i in range(len(pos)):
            if isinstance(list[pos[i]], CollectionTest):
                obj = list[pos[i]]
                list = list[pos[i]].getData()
            else:
                obj = list[pos[i]]

        list = root.getData()
        max = len(pos)

        # find object and delete it in current collection
        for i in range(len(pos)):
            if isinstance(list[pos[i]], CollectionTest):
                if (i == (max - 1)):
                    #collection löschen (evt. abfrage ob wirklich gelöscht werden soll inkl. kinder)
                    list.remove(obj)
                else:
                    list = list[pos[i]].getData()
            else:
                #task löschen
                list.remove(obj)

        self.set_data_in_pickle(root)
        return obj