From e059c631054d8e941ff27bd0c606e7b80d205bca Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@sugarlabs.org>
Date: Sun, 06 Feb 2011 15:16:04 +0000
Subject: adding sharing of pixbufs

---
diff --git a/TurtleArt/tacanvas.py b/TurtleArt/tacanvas.py
index ac9e36e..a4dbb64 100644
--- a/TurtleArt/tacanvas.py
+++ b/TurtleArt/tacanvas.py
@@ -24,6 +24,7 @@ import gtk
 from math import sin, cos, pi
 import pango
 import cairo
+import base64
 
 from sprites import Sprite
 from tasprite_factory import SVG
@@ -402,7 +403,7 @@ class TurtleGraphics:
                                           round_int(self.gray)]))
         self._send_event(event, share)
 
-    def settextcolor(self, c):
+    def settextcolor(self, c):  # depreciated
         """ Set the text color """
         try:
             self.tcolor = c
@@ -487,7 +488,7 @@ class TurtleGraphics:
         event = "p|%s" % (data_to_string([self._get_my_nick(), bool]))
         self._send_event(event, share)
 
-    def draw_pixbuf(self, pixbuf, a, b, x, y, w, h, path):
+    def draw_pixbuf(self, pixbuf, a, b, x, y, w, h, path, share=True):
         """ Draw a pixbuf """
         w *= self.tw.coord_scale
         h *= self.tw.coord_scale
@@ -501,6 +502,21 @@ class TurtleGraphics:
             else:
                 self.tw.svg_string += self.svg.image(x - self.width / 2,
                                                      y, w, h, path)
+        if self.tw.sharing():
+            data = pixbuf.get_pixels()
+            height = pixbuf.get_height()
+            width = pixbuf.get_width()
+            stride = pixbuf.get_rowstride()
+            bits_per_sample = pixbuf.get_bits_per_sample()
+            has_alpha = pixbuf.get_has_alpha()
+            colorspace = pixbuf.get_colorspace()
+            event = "P|%s" % (data_to_string([self._get_my_nick(),
+                [round_int(a), round_int(b), round_int(x), round_int(y),
+                 round_int(w), round_int(h), path,
+                 height, width, stride, bits_per_sample,
+                 has_alpha, colorspace,
+                 base64.standard_b64encode(str(data))]]))
+            self._send_event(event, share)
 
     def draw_text(self, label, x, y, size, w, share=True):
         """ Draw text """
@@ -666,5 +682,5 @@ class TurtleGraphics:
             return
 
         if self.tw.sharing():
-            print "Sending: %s" % entry
+            # print "Sending: %s" % entry
             self.tw.send_event(entry)
diff --git a/TurtleArt/tacollaboration.py b/TurtleArt/tacollaboration.py
index 9081edc..0383e6b 100644
--- a/TurtleArt/tacollaboration.py
+++ b/TurtleArt/tacollaboration.py
@@ -23,6 +23,10 @@ from dbus.service import signal
 from dbus.gobject_service import ExportedGObject
 import logging
 import telepathy
+
+import gtk
+import base64
+
 from TurtleArt.tautils import data_to_string, data_from_string
 
 try:
@@ -75,7 +79,8 @@ class Collaboration():
             'g' : self._set_pen_gray_level,
             's' : self._set_pen_shade,
             'w' : self._set_pen_width,
-            'p' : self._set_pen_state
+            'p' : self._set_pen_state,
+            'P' : self._draw_pixbuf
             }
 
     def _shared_cb(self, activity):
@@ -218,6 +223,17 @@ class Collaboration():
                         self._tw.canvas.set_turtle(nick, colors)
             self.waiting_for_turtles = False
     
+    def _draw_pixbuf(self, payload):
+        if len(payload) > 0:
+            [nick, [a, b, x, y, w, h, path, width, height, stride,
+                    bits_per_sample, has_alpha, colorspace, data]] =\
+                    data_from_string(payload)
+            if nick != self._tw.nick:
+                self._tw.canvas.draw_pixbuf(gtk.gdk.pixbuf_new_from_data(
+                    base64.standard_b64decode(data), colorspace, has_alpha,
+                    bits_per_sample, width, height, stride), a, b, x, y, w,
+                                            h, path, False)
+
     def _move_forward(self, payload):
         if len(payload) > 0:
             [nick, x] = data_from_string(payload)
--
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