From fdc224fb0597bf34b4e0bf4ec169c0b87b5312cc Mon Sep 17 00:00:00 2001
From: Simon Schampijer <simon@schampijer.de>
Date: Tue, 10 Jul 2007 20:39:04 +0000
Subject:  - Adopt to API changes in sugar

 - use csound instance instead of server
---
diff --git a/controller.py b/controller.py
index 0ae704f..495aeec 100644
--- a/controller.py
+++ b/controller.py
@@ -9,15 +9,16 @@ from dbus.service import method, signal
 from dbus.gobject_service import ExportedGObject
 
 from model import Model
+from csound.csoundserver import CsoundServer
 
-# XXX: I'm not convinced this is in the right namespace
 SERVICE = "org.freedesktop.Telepathy.Tube.Memosono"
 IFACE = SERVICE
 PATH = "/org/freedesktop/Telepathy/Tube/Memosono"
 
 
-
 GAME_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit')
+IMAGES_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit/images')
+SOUNDS_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit/sounds')
 MAX_NUM_PLAYERS = 2
 
 _logger = logging.getLogger('controller')
@@ -43,6 +44,10 @@ class Controller(ExportedGObject):
         self.numplayers = 0
         self.turn = 0
         
+        self.cs = CsoundServer()        
+        gtk.gdk.threads_init()
+        self.cs.start()
+        
         if self.is_initiator:
             self.init_game()
 
@@ -93,6 +98,8 @@ class Controller(ExportedGObject):
                                           path=PATH, sender_keyword='sender')
             self.tube.add_signal_receiver(self.flip_cb, 'Flip', IFACE,
                                           path=PATH, sender_keyword='sender')
+            self.tube.add_signal_receiver(self.play_cb, 'Play', IFACE,
+                                          path=PATH, sender_keyword='sender')
             self.tube.add_signal_receiver(self.points_cb, 'Points', IFACE,
                                           path=PATH, sender_keyword='sender')
 
@@ -120,11 +127,26 @@ class Controller(ExportedGObject):
 
     def selected_cb(self, tilenum, sender=None):
         _logger.debug('MA: %s flipped tile %d', sender, tilenum)        
-        obj, color = self.model.gettile(tilenum)
         if self.model.grid[tilenum][2] == 1:
             self.Info('selected already')            
         else:
-            self.Flip(tilenum, obj, color)
+            pairkey, moch, state = self.model.grid[tilenum]
+            color = self.model.pairs[pairkey].props.color
+
+            if moch == 0:
+                if self.model.pairs[pairkey].props.aimg != None:
+                    img = os.path.join(IMAGES_PATH, self.model.pairs[pairkey].props.aimg)                
+                    self.Flip(tilenum, img, color)
+                if self.model.pairs[pairkey].props.asnd != None:
+                    snd = os.path.join(SOUNDS_PATH, self.model.pairs[pairkey].props.asnd)
+                    self.Play(tilenum, snd, color)
+            elif moch == 1:
+                if self.model.pairs[pairkey].props.bimg != None:
+                    img = os.path.join(IMAGES_PATH, self.model.pairs[pairkey].props.bimg)
+                    self.Flip(tilenum, img, color)
+                if self.model.pairs[pairkey].props.bsnd != None:
+                    snd = os.path.join(SOUNDS_PATH, self.model.pairs[pairkey].props.bsnd)
+                    self.Play(tilenum, snd, color)
                         
             self.model.count+=1
             if self.model.count == 1:
@@ -171,10 +193,21 @@ class Controller(ExportedGObject):
 
     def flip_cb(self, tilenum, obj, color, sender=None):
         handle = self.tube.bus_name_to_handle[sender]
-        _logger.debug('Flipped tile(%d) from %s', tilenum, sender)
+        _logger.debug('Flipped tile(%d) from %s. Show image.', tilenum, sender)
         self.pv.flip(tilenum, os.path.join(os.path.dirname(__file__), obj), color)            
 
 
+    @signal(dbus_interface=IFACE, signature='nsn')
+    def Play(self, tilenum, obj, color):
+        """Signal that a sound will be played"""
+
+    def play_cb(self, tilenum, obj, color, sender=None):
+        handle = self.tube.bus_name_to_handle[sender]
+        _logger.debug('Flipped tile(%d) from %s. Play sound.', tilenum, sender)        
+        _logger.debug(' Sound: %s', obj)
+        self.cs.perform('i 108 0.0 3.0 "%s" 1 0.7 0.5 0'%(obj))                
+
+
     @signal(dbus_interface=IFACE, signature='ss')
     def Turn(self, playerid, name):
         """Signal that it is the players turn"""
diff --git a/csound/csoundserver.py b/csound/csoundserver.py
index c384300..45eca28 100644
--- a/csound/csoundserver.py
+++ b/csound/csoundserver.py
@@ -1,106 +1,43 @@
 #! /usr/bin/env python
 
-import select
 import os
 import logging
 from threading import Thread
 
 import csnd
-from  osc.oscapi import OscApi
+
+_logger = logging.getLogger('csound')
 
 class CsoundServer(Thread):    
-    CSOUND_PORT = 6783
-    MAX_PINGS = 3
-    TIMEOUT_PING = 10
     def __init__(self):
         Thread.__init__(self)
-        self.oscapi = OscApi(self.CSOUND_PORT)
-        self.oscapi.addmethod('/CSOUND/connect', '', self._connect)
-        self.oscapi.addmethod('/CSOUND/pong', '', self._pong)
-        self.oscapi.addmethod('/CSOUND/perform', 's', self._perform)
-        self.oscapi.addmethod('/CSOUND/disconnect', '', self._disconnect)
-        self.oscapi.addmethod('/CSOUND/quit', '', self._quit)
-        self.running = 1                
-
-        self.clients = {}
-        self.start()
-
-    def run(self):
-        logging.info('start listening...')
         self.csound = csnd.Csound()
-        
-        while self.running:            
-            inputready,outputready,exceptready = select.select([self.oscapi.iosock],[], [], self.TIMEOUT_PING)
-            for s in inputready:
-                if s == self.oscapi.iosock:
-                    data, address = s.recvfrom(1024)
-                    self.oscapi.handlemsg(data, address)
-                if len(inputready) == 0:
-                    self.ping()
-                                
-    def ping(self):
-        rm = []
-        for client in self.clients:
-            if self.clients[client] == self.MAX_PINGS:               
-                rm.append(client)
-                logging.debug('[ping] remove client %s'%str(client))                
-            else:
-                self.oscapi.send(client, '/CSOUND/ping', [])
-                self.clients[client]+=1
-                ### print '     [ping] client=%s seq=%s'%(str(client), self.clients[client])
-
-        for elem in rm:
-            del self.clients[elem]
-            if len(self.clients) == 0:
-                self.perf.Stop()
-                self.perf.Join()                                    
-                self.csound.Reset()
-                logging.debug('[csound] stop csound performance')                
-
-                
-    def _connect(self, *msg):            
-        if msg[1] in self.clients:
-            logging.debug('[connect_cb] %s already connected'%str(msg[1]))
-        else:    
-            self.clients[msg[1]]=0
-            logging.debug('[connect_cb] %s connected'%str(msg[1]))
-            if len(self.clients) == 1:
-                self.perf = csnd.CsoundPerformanceThread(self.csound)
-                uniorcpath = os.path.join( os.path.dirname(__file__), 'univorc.csd')
-                if not os.path.exists(uniorcpath):
-                    logging.error('[csound] univorc not found %s'%uniorcpath)                
-                self.csound.Compile(uniorcpath)        
-                self.perf.Play()
-                logging.debug('[csound] start csound performance %s'%uniorcpath)
 
-
-    def _disconnect(self, *msg):            
-        if msg[1] not in self.clients:
-            logging.debug('[disconnect_cb] %s not connected'%str(msg[1]))
-        else:    
-            del self.clients[msg[1]]
-            logging.debug('[disconnect_cb] %s disconnected'%str(msg[1]))
-            if len(self.clients) == 0:
-                self.perf.Stop()
-                self.perf.Join()                                    
-                self.csound.Reset()
-                logging.debug('[csound] stop csound performance')
-
-
-    def _quit(self, *msg):
-        logging.info('stop listening...')
-        self.running = 0
+    def start(self):            
+        self.perf = csnd.CsoundPerformanceThread(self.csound)
+        uniorcpath = os.path.join( os.path.dirname(__file__), 'univorc.csd')
+        if not os.path.exists(uniorcpath):
+            _logger.error('univorc not found %s'%uniorcpath)
+        else:
+            self.csound.Compile(uniorcpath)        
+            self.perf.Play()
+            _logger.debug('start csound performance %s'%uniorcpath)
+
+    def pause(self):            
+        self.perf.Stop()
+        self.perf.Join()                                    
         self.csound.Reset()
-        self.csound = None
-        
-    
-    def _pong(self, *msg):
-        self.clients[msg[1]]-=1
-        ### print '     [pong_cb] %s'%str(msg)
+        _logger.debug('stop performance')
 
+    def perform(self, msg):
+        _logger.debug('     [perform_cb] %s'%str(msg))
+        self.perf.InputMessage(msg)
 
-    def _perform(self, *msg):
-        logging.debug('     [perform_cb] %s'%str(msg[0][2]))
-        self.perf.InputMessage(msg[0][2])
+    def quit(self):
+        _logger.info('quit')
+        self.perf.Stop()
+        self.perf.Join()                                    
+        self.csound.Reset()
+        self.csound = None            
 
 
diff --git a/games/drumgit/drumgit.mson b/games/drumgit/drumgit.mson
index f508fa1..0c3aaae 100644
--- a/games/drumgit/drumgit.mson
+++ b/games/drumgit/drumgit.mson
@@ -1,11 +1,17 @@
 <?xml version="1.0"?>
 <memosono name="drumgit">
- <pair id="1" mother="guitar12_2.jpg" child="guitar12_2.jpg" color="100" />
- <pair id="2" mother="drumkit2_b.jpg" child="drumkit2_b.jpg" color="100" />
- <pair id="3" mother="guitar8_2.jpg" child="guitar8_2.jpg" color="100" /> 
+ <pair aimg="guitar10_2.jpg" asnd="guitcello.aiff" bimg="guitar10_2.jpg" bsnd="guitcello.aiff" color="100" />
+ <pair aimg="guitar8_2.jpg" asnd="git_hit1.aiff" bimg="guitar8_2.jpg" bsnd="git_hit1.aiff" color="100" />
+ <pair aimg="drumkit2_b.jpg" asnd="beat1_b.aiff" bimg="drumkit2_b.jpg" bsnd="beat1_b.aiff" color="100" />
+
 </memosono>
 
+
 <!--
+ <pair aimg="guitar12_2.jpg" bimg="guitar12_2.jpg" color="100" />
+ <pair aimg="guitar8_2.jpg" bimg="guitar8_2.jpg"  color="100" />
+ <pair aimg="drumkit2_b.jpg" bimg="drumkit2_b.jpg" color="100" />
+
 drumkit1_b.jpg beat1_a.aiff 
 drumkit2_b.jpg beat1_b.aiff  
 drumkit3_b.jpg beat1_c.aiff  
diff --git a/gridtest.py b/gridtest.py
deleted file mode 100644
index d442808..0000000
--- a/gridtest.py
+++ /dev/null
@@ -1,71 +0,0 @@
-import gtk
-import os
-import random
-import hippo
-import gobject
-
-from playview import PlayView
-from model import Model
-
-GAME_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit')
-IMAGES_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit/images')
-
-class Test(object):
-    def __init__(self):
-        
-        self.model = Model(GAME_PATH, os.path.dirname(__file__))
-        self.model.read('drumgit.mson')        
-        print 'pairs: %s' %self.model.pairs
-
-        ### create grid from pairs information
-        self.grid = []                
-        for key in self.model.pairs.iterkeys():
-            self.grid.append((key, 0))
-            self.grid.append((key, 1))
-        print 'self.grid: %s'%self.grid
-
-        ### shuffle the grid tiles
-        random.shuffle(self.grid)
-        print 'self.grid after shufle: %s'%self.grid
-        
-        self.pv = PlayView( len(self.grid) )
-        for tile in self.pv.tiles:
-            tile.connect('button-press-event', self._button_press_cb, self.pv.tiles.index(tile))
-
-        hbox = hippo.CanvasBox(spacing=4,
-                               orientation=hippo.ORIENTATION_HORIZONTAL)
-        hbox.append(self.pv, hippo.PACK_EXPAND)
-        
-        canvas = hippo.Canvas()
-        canvas.set_root(hbox)
-
-        window = gtk.Window()
-        window.connect('destroy', gtk.main_quit)
-        window.connect('key-press-event', self.key_press_cb)
-        window.add(canvas)
-        window.show_all()
-        try:
-            gtk.main()
-        except KeyboardInterupt:
-            pass
-        
-    def key_press_cb(self, window, event):
-        if gtk.gdk.keyval_name(event.keyval) in ('Escape', 'q'):
-            gtk.main_quit()
-
-    def _button_press_cb(self, tile, event, tilenum=None):
-        print 'selected tile=%s'%str(tilenum)
-        pairkey, moch = self.grid[tilenum]
-        obj = os.path.join(IMAGES_PATH, self.model.pairs[pairkey][moch])
-        color = self.model.pairs[pairkey][2]
-        print 'obj=%s color=%s'%(obj, color)
-        self.pv.flip(tilenum, obj, color)
-        gobject.timeout_add(2000, self._turn_back, tilenum) 
-
-    def _turn_back(self, tilenum):
-        self.pv.flip(tilenum, os.path.join(os.path.dirname(__file__), 'images/black.png'), 100)
-        return False
-    
-if __name__ == '__main__':
-    Test()
-
diff --git a/gridtest_cs.py b/gridtest_cs.py
new file mode 100644
index 0000000..6bcc89b
--- /dev/null
+++ b/gridtest_cs.py
@@ -0,0 +1,93 @@
+import gtk
+import os
+import random
+import hippo
+import gobject
+
+from playview import PlayView
+from gmodel import Model
+
+from csound.csoundserver import CsoundServer
+
+
+GAME_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit')
+IMAGES_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit/images')
+SOUNDS_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit/sounds')
+
+class Test(object):
+    def __init__(self):
+
+        self.cs = CsoundServer()        
+        self.cs.start()
+        gtk.gdk.threads_init()
+                
+        self.model = Model(GAME_PATH, os.path.dirname(__file__))
+        self.model.read('drumgit.mson')        
+        self.model.def_grid()
+        print '%s' %self.model.pairs[0]._properties
+        print '%s' %self.model.pairs[1]._properties
+        print '%s' %self.model.pairs[2]._properties
+        print 'self.grid: %s'%self.model.grid
+    
+        self.pv = PlayView( len(self.model.grid) )
+        for tile in self.pv.tiles:
+            tile.connect('button-press-event', self._button_press_cb, self.pv.tiles.index(tile))
+
+        hbox = hippo.CanvasBox(spacing=4,
+                               orientation=hippo.ORIENTATION_HORIZONTAL)
+        hbox.append(self.pv, hippo.PACK_EXPAND)
+        
+        canvas = hippo.Canvas()
+        canvas.set_root(hbox)
+
+        window = gtk.Window()
+        window.connect('destroy', gtk.main_quit)
+        window.connect('key-press-event', self.key_press_cb)
+        window.add(canvas)
+        window.show_all()
+        try:
+            gtk.main()
+        except KeyboardInterupt:
+            pass
+
+    def _handle_query(self, source, condition):
+        data, self.replyaddr = source.recvfrom(1024)
+        self.oscapi.handlemsg(data, self.replyaddr)            
+        return True
+    
+    def _ping(self, *msg):        
+        self.oscapi.send(msg[1], '/CSOUND/pong', [])
+    
+    def key_press_cb(self, window, event):
+        if gtk.gdk.keyval_name(event.keyval) in ('Escape', 'q'):
+            gtk.main_quit()
+            self.cs.quit()
+
+    def _button_press_cb(self, tile, event, tilenum=None):
+        print 'selected tile=%s'%str(tilenum)
+        pairkey, moch, state = self.model.grid[tilenum]
+        color = self.model.pairs[pairkey].props.color
+        if moch == 0:
+            if self.model.pairs[pairkey].props.aimg != None:
+                img = os.path.join(IMAGES_PATH, self.model.pairs[pairkey].props.aimg)                
+                self.pv.flip(tilenum, img, color)
+                gobject.timeout_add(2000, self._turn_back, tilenum) 
+            if self.model.pairs[pairkey].props.asnd != None:
+                snd = os.path.join(SOUNDS_PATH, self.model.pairs[pairkey].props.asnd)
+                self.cs.perform('i 108 0.0 3.0 "%s" 1 0.7 0.5 0'%snd)                
+        elif moch == 1:
+            if self.model.pairs[pairkey].props.bimg != None:
+                img = os.path.join(IMAGES_PATH, self.model.pairs[pairkey].props.bimg)
+                self.pv.flip(tilenum, img, color)
+                gobject.timeout_add(2000, self._turn_back, tilenum) 
+            if self.model.pairs[pairkey].props.bsnd != None:
+                snd = os.path.join(SOUNDS_PATH, self.model.pairs[pairkey].props.bsnd)
+                self.cs.perform('i 108 0.0 3.0 "%s" 1 0.7 0.5 0'%snd)                
+
+    def _turn_back(self, tilenum):
+        self.pv.flip(tilenum, os.path.join(os.path.dirname(__file__), 'images/black.png'), 100)
+        return False
+    
+if __name__ == '__main__':
+    Test()
+
diff --git a/gridtest_gst.py b/gridtest_gst.py
new file mode 100644
index 0000000..034dc84
--- /dev/null
+++ b/gridtest_gst.py
@@ -0,0 +1,105 @@
+import gtk
+import os
+import random
+import hippo
+import gobject
+
+import pygst
+pygst.require("0.10")
+import gst
+
+from playview import PlayView
+from gmodel import Model
+
+
+GAME_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit')
+IMAGES_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit/images')
+SOUNDS_PATH = os.path.join(os.path.dirname(__file__),'games/drumgit/sounds')
+
+class Test(object):
+    def __init__(self):
+        
+        self.model = Model(GAME_PATH, os.path.dirname(__file__))
+        self.model.read('drumgit.mson')        
+        self.model.def_grid()
+        print '%s' %self.model.pairs[0]._properties
+        print '%s' %self.model.pairs[1]._properties
+        print '%s' %self.model.pairs[2]._properties
+        print 'self.grid: %s'%self.model.grid
+    
+        self.pv = PlayView( len(self.model.grid) )
+        for tile in self.pv.tiles:
+            tile.connect('button-press-event', self._button_press_cb, self.pv.tiles.index(tile))
+
+        hbox = hippo.CanvasBox(spacing=4,
+                               orientation=hippo.ORIENTATION_HORIZONTAL)
+        hbox.append(self.pv, hippo.PACK_EXPAND)
+        
+        canvas = hippo.Canvas()
+        canvas.set_root(hbox)
+
+        window = gtk.Window()
+        window.connect('destroy', gtk.main_quit)
+        window.connect('key-press-event', self.key_press_cb)
+        window.add(canvas)
+        window.show_all()
+
+        		
+        self.player = gst.element_factory_make("playbin", "player")
+        fakesink = gst.element_factory_make('fakesink', "my-fakesink")
+        self.player.set_property("video-sink", fakesink)
+        bus = self.player.get_bus()
+        bus.add_signal_watch()
+        bus.connect('message', self.on_message)
+
+        try:
+            gtk.main()
+        except KeyboardInterupt:
+            pass
+    
+    def key_press_cb(self, window, event):
+        if gtk.gdk.keyval_name(event.keyval) in ('Escape', 'q'):
+            gtk.main_quit()
+
+    def _button_press_cb(self, tile, event, tilenum=None):
+        print 'selected tile=%s'%str(tilenum)
+        pairkey, moch, state = self.model.grid[tilenum]
+        color = self.model.pairs[pairkey].props.color
+        if moch == 0:
+            if self.model.pairs[pairkey].props.aimg != None:
+                img = os.path.join(IMAGES_PATH, self.model.pairs[pairkey].props.aimg)                
+                self.pv.flip(tilenum, img, color)
+                gobject.timeout_add(2000, self._turn_back, tilenum) 
+            if self.model.pairs[pairkey].props.asnd != None:
+                snd = os.path.join(SOUNDS_PATH, self.model.pairs[pairkey].props.asnd)
+                ssnd = os.path.join('/home/erikos/sugar-jhbuild/source/memosono', snd)
+                print ssnd
+                self.player.set_property('uri', "file://" + ssnd)
+                self.player.set_state(gst.STATE_PLAYING)                 
+        elif moch == 1:
+            if self.model.pairs[pairkey].props.bimg != None:
+                img = os.path.join(IMAGES_PATH, self.model.pairs[pairkey].props.bimg)
+                self.pv.flip(tilenum, img, color)
+                gobject.timeout_add(2000, self._turn_back, tilenum) 
+            if self.model.pairs[pairkey].props.bsnd != None:
+                snd = os.path.join(SOUNDS_PATH, self.model.pairs[pairkey].props.bsnd)
+                ssnd = os.path.join('/home/erikos/sugar-jhbuild/source/memosono', snd)
+                print ssnd
+                self.player.set_property('uri', "file://" + ssnd)
+                self.player.set_state(gst.STATE_PLAYING)
+
+    def _turn_back(self, tilenum):
+        self.pv.flip(tilenum, os.path.join(os.path.dirname(__file__), 'images/black.png'), 100)
+        return False
+
+    def on_message(self, bus, message):
+        t = message.type
+        print t
+        if t == gst.MESSAGE_EOS:
+            self.player.set_state(gst.STATE_NULL)    
+        elif t == gst.MESSAGE_ERROR:
+            self.player.set_state(gst.STATE_NULL)
+
+if __name__ == '__main__':
+    Test()
+    gtk.gdk.threads_init()
diff --git a/memosono.dtd b/memosono.dtd
index bd46b94..713c779 100644
--- a/memosono.dtd
+++ b/memosono.dtd
@@ -7,8 +7,9 @@
 
 <!ELEMENT pair (#PCDATA)* >
 <!ATTLIST pair
-  id      CDATA  #REQUIRED
-  mother  CDATA  #REQUIRED
-  child	  CDATA  #REQUIRED
-  color	  CDATA  #REQUIRED
+  aimg    CDATA  #IMPLIED
+  asnd	  CDATA  #IMPLIED
+  bimg	  CDATA  #IMPLIED
+  bsnd   CDATA  #IMPLIED
+  color	  CDATA  #IMPLIED
 >
diff --git a/memosonoactivity.py b/memosonoactivity.py
index ce1890a..e375669 100755
--- a/memosonoactivity.py
+++ b/memosonoactivity.py
@@ -91,6 +91,11 @@ class MemosonoActivity(Activity):
         self.set_toolbox(toolbox)
         toolbox.show()
 
+        # connect to the in/out events of the memosono activity
+        self.connect('focus_in_event', self._focus_in)
+        self.connect('focus_out_event', self._focus_out)
+        self.connect('destroy', self._cleanup_cb)
+        
         self.info_panel.show('To play, share!')
 
         self.connect('shared', self._shared_cb)
@@ -251,5 +256,19 @@ class MemosonoActivity(Activity):
         _logger.debug('buddy left')
         self.buddies_panel.remove_watcher(buddy)
         
-
-
+    def _cleanup_cb(self, data=None):
+        if self.ctrl != None:
+            self.ctrl.cs.quit()        
+            _logger.debug(" Memosono closes: close csound server. ")
+                
+    def _focus_in(self, event, data=None):
+        if self.ctrl != None:
+            self.ctrl.cs.start()
+            _logger.debug(" Memosono is visible: start csound server. ")
+        
+    def _focus_out(self, event, data=None):
+        if self.ctrl != None:
+            self.ctrl.cs.start()
+            _logger.debug(" Memosono is invisible: pause csound server. ")
+        
+        
diff --git a/model.py b/model.py
index 5ba6909..bb7870a 100644
--- a/model.py
+++ b/model.py
@@ -2,11 +2,58 @@ import libxml2
 import os
 import logging
 import random
+import gobject
 
 IMAGES_PATH = 'games/drumgit/images'
+GAME_PATH = 'games/drumgit'
 
 _logger = logging.getLogger('model')
 
+
+class Pair(gobject.GObject):    
+    __gproperties__ = {
+        'aimg'    : (str, None, None, None, gobject.PARAM_READWRITE),
+        'asnd'    : (str, None, None, None, gobject.PARAM_READWRITE),
+        'bimg'    : (str, None, None, None, gobject.PARAM_READWRITE),        
+        'bsnd'    : (str, None, None, None, gobject.PARAM_READWRITE),
+        'color': (gobject.TYPE_INT, 'Base', 'Base', 0, 10, 0, gobject.PARAM_READWRITE)
+    }
+        
+    def __init__(self):
+        gobject.GObject.__init__(self)        
+        self._properties = {'aimg':None, 'asnd':None, 'bimg':None, 'bsnd':None, 'color':100}                
+        
+    def do_get_property(self, pspec):
+        """Retrieve a particular property from our property dictionary 
+        """
+        if pspec.name == "aimg":
+            return self._properties["aimg"]
+        elif pspec.name == "asnd":
+            return self._properties["asnd"]
+        elif pspec.name == "bimg":
+            return self._properties["bimg"]
+        elif pspec.name == "bsnd":
+            return self._properties["bsnd"]
+        elif pspec.name == "color":
+            return self._properties["color"]
+
+    def set_property(self, name, value):
+        if name == 'aimg':
+            self._properties['aimg'] = value
+        elif name == "asnd":
+            self._properties["asnd"] = value
+        elif name == "bimg":
+            self._properties["bimg"] = value
+        elif name == "bsnd":
+            self._properties["bsnd"] = value
+        elif name == "color":
+            self._properties["color"] = int(value)
+    '''        
+    def do_set_property(self, props, value):
+        if props.name == 'a_img':
+            self._properties['a_img'] = value
+    '''
+
 class Model(object):
     ''' The model of the activity. Contains methods to read and save
     the configuration for a game from xml. Stores the pairs and grid
@@ -46,25 +93,22 @@ class Model(object):
                 res = xpa.xpathEval("//*")
 
                 # write their content to the data structure
+                self.idpair = 0
                 for elem in res:
                     attributes = elem.get_properties()
-                    pair = []
-                    idpair = 0
+                    pair = Pair()
                     for attribute in attributes:
                         if(attribute.name == 'text'):
                             pass
-                        if(attribute.name == 'id'):
-                            idpair = int(attribute.content)
-                        if(attribute.name == 'mother'):
-                            pair.append(attribute.content)
-                        if(attribute.name == 'child'):
-                            pair.append(attribute.content)
-                        if(attribute.name == 'color'):
-                            pair.append(int(attribute.content))
-                        if( elem.name == 'memosono' ):    
-                            self.name = attribute.content            
-                        if( elem.name != 'memosono' ):
-                            self.pairs[idpair] = pair
+                        else:
+                            pass
+                            pair.set_property(attribute.name, attribute.content)
+                    if( elem.name == 'pair' ):
+                        self.pairs[self.idpair] = pair
+                        self.idpair+=1
+                    elif( elem.name == 'memosono' ):    
+                        self.name = attribute.content            
+                    
                 xpa.xpathFreeContext()
             else:
                 _logger.error('Error in validation of the file')
@@ -81,10 +125,15 @@ class Model(object):
         for key in self.pairs:
             
             elem = root.newChild(None, "pair", None)
-            elem.setProp("id", key)
-            elem.setProp("mother", self.pairs[key][0])
-            elem.setProp("child", self.pairs[key][1])
-            elem.setProp("color", self.pairs[key][2])
+            if self.pairs[key].props.aimg != None:
+                elem.setProp("aimg", self.pairs[key].props.aimg)
+            if self.pairs[key].props.asnd != None:
+                elem.setProp("asnd", self.pairs[key].props.asnd)
+            if self.pairs[key].props.bimg != None:
+                elem.setProp("bimg", self.pairs[key].props.bimg)
+            if self.pairs[key].props.bsnd != None:
+                elem.setProp("bsnd", self.pairs[key].props.bsnd)
+            elem.setProp("color", str(self.pairs[key].props.color))
         
         if doc.validateDtd(self.ctxt, self.dtd):
             doc.saveFormatFile(filename, 1)
@@ -121,3 +170,14 @@ class Model(object):
 
 
     
+
+if __name__ == '__main__':
+    model = Model(GAME_PATH, os.path.dirname(__file__))
+    model.read('drumgit.mson')
+    print '%s' %model.pairs[0].props.color
+    print '%s' %model.pairs[1]._properties
+    print '%s' %model.pairs[2]._properties
+
+    model.def_grid()
+    print model.grid
+    #model.save('/tmp/mod.txt')
diff --git a/playtile.py b/playtile.py
index fd56e4d..a720174 100644
--- a/playtile.py
+++ b/playtile.py
@@ -3,7 +3,6 @@ import hippo
 import math
 import os
 
-from sugar.graphics import font
 from sugar.graphics import units
 
 class PlayTile(hippo.CanvasBox, hippo.CanvasItem):
diff --git a/playview.py b/playview.py
index af75a2a..df0b983 100644
--- a/playview.py
+++ b/playview.py
@@ -4,7 +4,6 @@ import cairo
 import gtk
 
 from sugar.graphics import color
-from sugar.graphics import font
 
 from playtile import PlayTile
 
--
cgit v0.9.1