From dfd27e87a3677c136153f862a09adc452f331cef Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@sugarlabs.org>
Date: Sun, 22 Aug 2010 15:05:37 +0000
Subject: cleaning up after git mv

---
(limited to 'talogo.py')

diff --git a/talogo.py b/talogo.py
deleted file mode 100644
index 318bb7e..0000000
--- a/talogo.py
+++ /dev/null
@@ -1,1366 +0,0 @@
-# -*- coding: utf-8 -*-
-#Copyright (c) 2007-8, Playful Invention Company.
-#Copyright (c) 2008-10, Walter Bender
-#Copyright (c) 2008-10, Raúl Gutiérrez Segalés
-
-#Permission is hereby granted, free of charge, to any person obtaining a copy
-#of this software and associated documentation files (the "Software"), to deal
-#in the Software without restriction, including without limitation the rights
-#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-#copies of the Software, and to permit persons to whom the Software is
-#furnished to do so, subject to the following conditions:
-
-#The above copyright notice and this permission notice shall be included in
-#all copies or substantial portions of the Software.
-
-#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-#THE SOFTWARE.
-
-import gtk
-from time import clock
-from math import sqrt
-from random import uniform
-from operator import isNumberType
-from UserDict import UserDict
-try:
-    from sugar.datastore import datastore
-except:
-    pass
-
-from taconstants import PALETTES, PALETTE_NAMES, TAB_LAYER, BLACK, WHITE
-from tagplay import play_audio, play_movie_from_file, stop_media
-from tajail import myfunc, myfunc_import
-from tautils import get_pixbuf_from_journal, movie_media_type, convert, \
-                    audio_media_type, text_media_type, round_int, chr_to_ord, \
-                    strtype
-from gettext import gettext as _
-
-class noKeyError(UserDict):
-    __missing__ = lambda x, y: 0
-
-class symbol:
-    def __init__(self, name):
-        self.name = name
-        self.nargs = None
-        self.fcn = None
-
-    def __str__(self):
-        return self.name
-    def __repr__(self):
-        return '#' + self.name
-
-class logoerror(Exception):
-    def __init__(self, value):
-        self.value = value
-    def __str__(self):
-        return repr(self.value)
-
-# Utility functions
-
-def numtype(x):
-    """ Is x a number type? """
-    if type(x) == int:
-        return True
-    if type(x) == float:
-        return True
-    if type(x) == ord:
-        return True
-    return False
-
-def str_to_num(x):
-    """ Try to comvert a string to a number """
-    xx = convert(x, float)
-    if type(xx) is float:
-        return xx
-    else:
-        xx, xflag = chr_to_ord(x)
-        if xflag:
-            return xx
-        else:
-            raise logoerror("#syntaxerror")
-
-def taand(x, y):
-    """ Logical and """
-    return x&y
-
-def taor(x, y):
-    """ Logical or """
-    return x|y
-
-def careful_divide(x, y):
-    """ Raise error on divide by zero """
-    try:
-        return x/y
-    except ZeroDivisionError:
-        raise logoerror("#zerodivide")
-    except TypeError:
-        try:
-            return str_to_num(x) / str_to_num(y)
-        except ZeroDivisionError:
-            raise logoerror("#zerodivide")
-        except ValueError:
-            raise logoerror("#syntaxerror")
-
-def taequal(x, y):
-    """ Numeric and logical equal """
-    try:
-        return float(x)==float(y)
-    except TypeError:
-        typex, typey = False, False
-        if strtype(x):
-            typex = True
-        if strtype(y):
-            typey = True
-        if typex and typey:
-            return x == y
-        try:
-            return str_to_num(x) == str_to_num(y)
-        except ValueError:
-            raise logoerror("#syntaxerror")
-
-def taless(x, y):
-    """ Compare numbers and strings """
-    try:
-        return float(x)<float(y)
-    except ValueError:
-        typex, typey = False, False
-        if strtype(x):
-            typex = True
-        if strtype(y):
-            typey = True
-        if typex and typey:
-            return x < y
-        try:
-            return str_to_num(x) < str_to_num(y)
-        except TypeError:
-            raise logoerror("#syntaxerror")
-
-def tamore(x, y):
-    """ Compare numbers and strings """
-    return taless(y, x)
-
-def taplus(x, y):
-    """ Add numbers, concat strings """
-    if numtype(x) and numtype(y):
-        return(x+y)
-    else:
-        if numtype(x):
-            xx = str(round_int(x))
-        else:
-            xx = str(x)
-        if numtype(y):
-            yy = str(round_int(y))
-        else:
-            yy = str(y)
-        return(xx+yy)
-    
-def taminus(x, y):
-    """ Numerical subtraction """
-    if numtype(x) and numtype(y):
-        return(x-y)
-    try:
-        return str_to_num(x) - str_to_num(y)
-    except TypeError:
-        raise logoerror("#syntaxerror")
-    
-def taproduct(x, y):
-    """ Numerical multiplication """
-    if numtype(x) and numtype(y):
-        return(x*y)
-    try:
-        return str_to_num(x) * str_to_num(y)
-    except TypeError:
-        raise logoerror("#syntaxerror")
-
-def tamod(x, y):
-    """ Numerical mod """
-    if numtype(x) and numtype(y):
-        return(x%y)
-    try:
-        return str_to_num(x) % str_to_num(y)
-    except TypeError:
-        raise logoerror("#syntaxerror")
-    except ValueError:
-        raise logoerror("#syntaxerror")
-    
-def tasqrt(x):
-    """ Square root """
-    if numtype(x):
-        if x < 0:
-            raise logoerror("#negroot")        
-        return sqrt(x)
-    try:
-        return sqrt(str_to_num(x))
-    except ValueError:
-        raise logoerror("#negroot")
-    except TypeError:
-        raise logoerror("#syntaxerror")
-
-def tarandom(x, y):
-    """ Random integer """
-    if numtype(x) and numtype(y):
-        return(int(uniform(x, y)))
-    xx, xflag = chr_to_ord(x)
-    yy, yflag = chr_to_ord(y)
-    print xx, xflag, yy, yflag
-    if xflag and yflag:
-        return chr(int(uniform(xx, yy)))
-    if not xflag:
-        xx = str_to_num(x)
-    if not yflag:
-        yy = str_to_num(y)
-    try:
-        return(int(uniform(xx, yy)))
-    except TypeError:
-        raise logoerror("#syntaxerror")
-
-def identity(x):
-    """ Identity function """
-    return(x)
-    
-def stop_logo(tw):
-    """ Stop logo is called from the Stop button on the toolbar """
-    tw.step_time = 0
-    tw.lc.step = just_stop()
-    tw.turtles.show_all()
-
-def just_stop():
-    """ yield False to stop stack """
-    yield False
-
-def millis():
-    """ Current time in milliseconds """
-    return int(clock()*1000)
-
-"""
-A class for parsing Logo Code
-"""
-class LogoCode:
-    def __init__(self, tw):
-
-        self.tw = tw
-        self.oblist = {}
-
-        DEFPRIM = {
-        '(':[1, lambda self, x: self.prim_opar(x)],
-        'and':[2, lambda self, x, y: taand(x, y)],
-        'arc':[2, lambda self, x, y: self.tw.canvas.arc(x, y)],
-        'back':[1, lambda self, x: self.tw.canvas.forward(-x)],
-        'black':[0, lambda self: BLACK],
-        'blue':[0, lambda self: 70],
-        'bpos':[0, lambda self: -self.tw.canvas.height/(self.tw.coord_scale*2)],
-        'boty':[0, lambda self: self.tw.bottomy],
-        'box1':[0, lambda self: self.boxes['box1']],
-        'box':[1, lambda self, x: self.box(x)],
-        'box2':[0, lambda self: self.boxes['box2']],
-        'bullet':[1, self.prim_bullet, True],
-        'bulletlist':[1, self.prim_list, True],
-        'cartesian':[0, lambda self: self.tw.set_cartesian(True)],
-        'clean':[0, lambda self: self.prim_clear()],
-        'clearheap':[0, lambda self: self.empty_heap()],
-        'color':[0, lambda self: self.tw.canvas.color],
-        'gray':[0, lambda self: self.tw.canvas.gray],
-        'comment':[1, lambda self, x: self.prim_print(x, True)],
-        'container':[1, lambda self,x: x],
-        'cyan':[0, lambda self: 50],
-        'define':[2, self.prim_define],
-        'division':[2, lambda self, x, y: careful_divide(x, y)],
-        'equal?':[2, lambda self,x, y: taequal(x, y)],
-        'fillscreen':[2, lambda self, x, y: self.tw.canvas.fillscreen(x, y)],
-        'forever':[1, self.prim_forever, True],
-        'forward':[1, lambda self, x: self.tw.canvas.forward(x)],
-        'fullscreen':[0, lambda self: self.tw.set_fullscreen()],
-        'greater?':[2, lambda self, x, y: tamore(x, y)],
-        'green':[0, lambda self: 30],
-        'heading':[0, lambda self: self.tw.canvas.heading],
-        'hideblocks':[0, lambda self: self.tw.hideblocks()],
-        'hres':[0, lambda self: self.tw.canvas.width/self.tw.coord_scale],
-        'id':[1, lambda self, x: identity(x)],
-        'if':[2, self.prim_if, True],
-        'ifelse':[3, self.prim_ifelse, True],
-        'insertimage':[1, lambda self, x: self.insert_image(x, False)],
-        'kbinput':[0, lambda self: self.prim_kbinput()],
-        'keyboard':[0, lambda self: self.keyboard],
-        'left':[1, lambda self, x: self.tw.canvas.right(-x)],
-        'leftx':[0, lambda self: self.tw.leftx],
-        'lpos':[0, lambda self: -self.tw.canvas.width/(self.tw.coord_scale*2)],
-        'less?':[2, lambda self, x, y: taless(x, y)],
-        'minus':[2, lambda self, x, y: taminus(x, y)],
-        'mod':[2, lambda self, x, y: tamod(x, y)],
-        'myfunction':[2, lambda self, f, x: self.myfunction(f, [x])],
-        'myfunction2':[3, lambda self, f, x, y: self.myfunction(f, [x, y])],
-        'myfunction3':[4, lambda self, f, x, y, z: self.myfunction(
-                                                                 f, [x, y, z])],
-        'nop':[0, lambda self: None],
-        'nop1':[0, lambda self: None],
-        'nop2':[0, lambda self: None],
-        'nop3':[1, lambda self, x: None],
-        'not':[1, lambda self, x: not x],
-        'orange':[0, lambda self: 10],
-        'or':[2, lambda self, x, y: taor(x, y)],
-        'pendown':[0, lambda self: self.tw.canvas.setpen(True)],
-        'pensize':[0, lambda self: self.tw.canvas.pensize],
-        'penup':[0, lambda self: self.tw.canvas.setpen(False)],
-        'plus':[2, lambda self, x, y: taplus(x, y)],
-        'polar':[0, lambda self: self.tw.set_polar(True)],
-        'pop':[0, lambda self: self.prim_pop()],
-        'print':[1, lambda self, x: self.prim_print(x, False)],
-        'printheap':[0, lambda self: self.prim_print_heap()],
-        'product':[2, lambda self, x, y: taproduct(x, y)],
-        'purple':[0, lambda self: 90],
-        'push':[1, lambda self, x: self.prim_push(x)],
-        'random':[2, lambda self, x, y: tarandom(x, y)],
-        'red':[0, lambda self: 0],
-        'repeat':[2, self.prim_repeat, True],
-        'right':[1, lambda self, x: self.tw.canvas.right(x)],
-        'rightx':[0, lambda self: self.tw.rightx],
-        'rpos':[0, lambda self: self.tw.canvas.width/(self.tw.coord_scale*2)],
-        'savepix':[1, lambda self, x: self.save_picture(x)],
-        'savesvg':[1, lambda self, x: self.save_svg(x)],
-        'scale':[0, lambda self: self.scale],
-        'setcolor':[1, lambda self, x: self.tw.canvas.setcolor(x)],
-        'setgray':[1, lambda self, x: self.tw.canvas.setgray(x)],
-        'seth':[1, lambda self, x: self.tw.canvas.seth(x)],
-        'setpensize':[1, lambda self, x: self.tw.canvas.setpensize(x)],
-        'setscale':[1, lambda self, x: self.set_scale(x)],
-        'setshade':[1, lambda self, x: self.tw.canvas.setshade(x)],
-        'settextcolor':[1, lambda self, x: self.tw.canvas.settextcolor(x)],
-        'settextsize':[1, lambda self, x: self.tw.canvas.settextsize(x)],
-        'setxy':[2, lambda self, x, y: self.tw.canvas.setxy(x, y)],
-        'shade':[0, lambda self: self.tw.canvas.shade],
-        'show':[1, lambda self, x: self.show(x, True)],
-        'showaligned':[1,lambda self, x: self.show(x, False)],
-        'showblocks':[0, lambda self: self.tw.showblocks()],
-        'sound':[1, lambda self, x: self.play_sound(x)],
-        'sqrt':[1, lambda self, x: tasqrt(x)],
-        'stack1':[0, self.prim_stack1, True],
-        'stack':[1, self.prim_stack, True],
-        'stack2':[0, self.prim_stack2, True],
-        'start':[0, lambda self: self.prim_start()],
-        'startfill':[0, lambda self: self.tw.canvas.start_fill()],
-        'stopfill':[0, lambda self: self.tw.canvas.stop_fill()],
-        'stopstack':[0, lambda self: self.prim_stopstack()],
-        'storeinbox1':[1, lambda self, x: self.prim_setbox('box1', None ,x)],
-        'storeinbox2':[1, lambda self, x: self.prim_setbox('box2', None, x)],
-        'storeinbox':[2, lambda self, x, y: self.prim_setbox('box3', x, y)],
-        't1x1':[2, lambda self, x, y: self.show_template1x1(x, y)],
-        't1x1a':[2, lambda self, x, y: self.show_template1x1a(x, y)],
-        't1x2':[3, lambda self, x, y, z: self.show_template1x2(x, y, z)],
-        't2x1':[3, lambda self, x, y, z: self.show_template2x1(x, y, z)],
-        't2x2':[5, lambda self, x, y, z, a, b: self.show_template2x2(
-                                                               x, y, z, a, b)],
-        'textcolor':[0, lambda self: self.tw.canvas.textcolor],
-        'textsize':[0, lambda self: self.tw.textsize],
-        'titlex':[0, lambda self: self.tw.titlex],
-        'titley':[0, lambda self: self.tw.titley],
-        'topy':[0, lambda self: self.tw.topy],
-        'tpos':[0, lambda self: self.tw.canvas.height/(self.tw.coord_scale*2)],
-        'turtle':[1, lambda self, x: self.tw.canvas.set_turtle(x)],
-        'userdefined':[1, lambda self, x: self.prim_myblock([x])],
-        'userdefined2':[2, lambda self, x, y: self.prim_myblock([x, y])],
-        'userdefined3':[3, lambda self, x, y, z: self.prim_myblock([x, y, z])],
-        'video':[1, lambda self, x: self.play_movie(x)],
-        'vres':[0, lambda self: self.tw.canvas.height/self.tw.coord_scale],
-        'wait':[1, self.prim_wait, True],
-        # 'while':[2, self.prim_while, True],
-        'white':[0, lambda self: WHITE],
-        'write':[2, lambda self, x, y: self.write(self, x, y)],
-        'xcor':[0, lambda self: self.tw.canvas.xcor/self.tw.coord_scale],
-        'ycor':[0, lambda self: self.tw.canvas.ycor/self.tw.coord_scale],
-        'yellow':[0, lambda self: 20]}
-
-        for p in iter(DEFPRIM):
-            if len(DEFPRIM[p]) == 2:
-                self.defprim(p, DEFPRIM[p][0], DEFPRIM[p][1])
-            else:
-                self.defprim(p, DEFPRIM[p][0], DEFPRIM[p][1], DEFPRIM[p][2])
-    
-        self.symtype = type(self.intern('print'))
-        self.listtype = type([])
-        self.symnothing = self.intern('%nothing%')
-        self.symopar = self.intern('(')
-        self.iline = None
-        self.cfun = None
-        self.arglist = None
-        self.ufun = None
-        self.procstop = False
-        self.running = False
-        self.istack = []
-        self.stacks = {}
-        self.boxes = {'box1': 0, 'box2': 0}
-        self.heap = []
-        self.iresults = None
-        self.step = None
-
-        self.keyboard = 0
-        self.trace = 0
-        self.gplay = None
-        self.ag = None
-        self.filepath = None
-
-        # Scale factors for depreciated portfolio blocks
-        self.title_height = int((self.tw.canvas.height/20)*self.tw.scale)
-        self.body_height = int((self.tw.canvas.height/40)*self.tw.scale)
-        self.bullet_height = int((self.tw.canvas.height/30)*self.tw.scale)
-    
-        self.scale = 33
-
-    def defprim(self, name, args, fcn, rprim=False):
-        """ Define the primitives associated with the blocks """
-        sym = self.intern(name)
-        sym.nargs, sym.fcn = args, fcn
-        sym.rprim = rprim    
-
-    def intern(self, string):
-        """ Add any new objects to the symbol list. """
-        if string in self.oblist:
-            return self.oblist[string]
-        sym = symbol(string)
-        self.oblist[string] = sym
-        return sym
-    
-    def run_blocks(self, blk, blocks, run_flag):
-        """ Given a block to run... """
-        for k in self.stacks.keys():
-            self.stacks[k] = None
-        self.stacks['stack1'] = None
-        self.stacks['stack2'] = None
-        self.tw.saving_svg = False
-
-        for b in blocks:
-            b.unhighlight()
-            if b.name == 'hat1':
-                code = self.blocks_to_code(b)
-                self.stacks['stack1'] = self.readline(code)
-            if b.name == 'hat2':
-                code = self.blocks_to_code(b)
-                self.stacks['stack2'] = self.readline(code)
-            if b.name == 'hat':
-                if b.connections[1] is not None:
-                    code = self.blocks_to_code(b)
-                    x = b.connections[1].values[0]
-                    if type(convert(x, float, False)) == float:
-                        if int(float(x)) == x:
-                            x = int(x)
-                    self.stacks['stack3'+str(x)] = self.readline(code)
-
-        code = self.blocks_to_code(blk)
-        if run_flag:
-            print "running code: %s" % (code)
-            self.setup_cmd(code)
-            if self.tw.hide is False:
-                self.tw.display_coordinates()
-        else:
-            return code
-
-    def blocks_to_code(self, blk):
-        """ Convert a stack of blocks to pseudocode. """
-        if blk is None:
-            return ['%nothing%', '%nothing%']
-        code = []
-        dock = blk.docks[0]
-        if len(dock)>4: # There could be a '(', ')', '[' or ']'.
-            code.append(dock[4])
-        if blk.name == 'savesvg':
-            self.tw.saving_svg = True
-        if blk.primitive is not None: # make a tuple (prim, blk)
-            code.append((blk.primitive, self.tw.block_list.list.index(blk)))
-        elif len(blk.values)>0:  # Extract the value from content blocks.
-            if blk.name == 'number':
-                try:
-                    code.append(float(blk.values[0]))
-                except ValueError:
-                    code.append(float(ord(blk.values[0][0])))
-            elif blk.name == 'string' or blk.name == 'title':
-                if type(blk.values[0]) == float or type(blk.values[0]) == int:
-                    if int(blk.values[0]) == blk.values[0]:
-                        blk.values[0] = int(blk.values[0])
-                    code.append('#s'+str(blk.values[0]))
-                else:
-                    code.append('#s'+blk.values[0])
-            elif blk.name == 'journal':
-                if blk.values[0] is not None:
-                    code.append('#smedia_'+str(blk.values[0]))
-                else:
-                    code.append('#smedia_None')
-            elif blk.name == 'description':
-                if blk.values[0] is not None:
-                    code.append('#sdescr_'+str(blk.values[0]))
-                else:
-                    code.append('#sdescr_None')
-            elif blk.name == 'audio':
-                if blk.values[0] is not None:
-                    code.append('#saudio_'+str(blk.values[0]))
-                else:
-                    code.append('#saudio_None')
-            else:
-                return ['%nothing%']
-        else:
-            return ['%nothing%']
-        if blk.connections is not None and len(blk.connections) > 0:
-            for i in range(1, len(blk.connections)):
-                b = blk.connections[i]        
-                dock = blk.docks[i]
-                if len(dock)>4: # There could be a '(', ')', '[' or ']'.
-                    for c in dock[4]:
-                        code.append(c)
-                if b is not None:
-                    code.extend(self.blocks_to_code(b))
-                elif blk.docks[i][0] not in ['flow', 'unavailable']:
-                    code.append('%nothing%')
-        return code
-    
-    def setup_cmd(self, string):
-        """ Execute the psuedocode. """
-        self.tw.active_turtle.hide() # Hide the turtle while we are running.
-        self.procstop = False
-        blklist = self.readline(string)
-        self.step = self.start_eval(blklist)
-
-    """
-    Convert the pseudocode into a list of commands.
-        The block associated with the command is stored as the second element
-        in a tuple, e.g., (#forward, 16)
-    """
-    def readline(self, line):
-        res = []
-        while line:
-            token = line.pop(0)
-            bindex = None
-            if type(token) == tuple:
-                (token, bindex) = token
-            if isNumberType(token):
-                res.append(token)
-            elif token.isdigit():
-                res.append(float(token))
-            elif token[0] == '-' and token[1:].isdigit():
-                res.append(-float(token[1:]))
-            elif token[0] == '"':
-                res.append(token[1:])
-            elif token[0:2] == "#s":
-                res.append(token[2:])
-            elif token == '[':
-                res.append(self.readline(line))
-            elif token == ']':
-                return res
-            elif bindex is None or type(bindex) is not int:
-                res.append(self.intern(token))
-            else:
-                res.append((self.intern(token), bindex))
-        return res
-
-    def start_eval(self, blklist):
-        """ Step through the list. """
-        if self.tw.running_sugar:
-            self.tw.activity.stop_turtle_button.set_icon("stopiton")
-        elif self.tw.interactive_mode:
-            self.tw.toolbar_shapes['stopiton'].set_layer(TAB_LAYER)
-        self.running = True
-        self.icall(self.evline, blklist)
-        yield True
-        if self.tw.running_sugar:
-            self.tw.activity.stop_turtle_button.set_icon("stopitoff")
-        elif self.tw.interactive_mode:
-            self.tw.toolbar_shapes['stopiton'].hide()
-        yield False
-        self.running = False
-
-    def icall(self, fcn, *args):
-        """ Add a function and its arguments to the program stack. """
-        self.istack.append(self.step)
-        self.step = fcn(*(args))
-
-    def evline(self, blklist):
-        """ Evaluate a line of code from the list. """
-        oldiline = self.iline
-        self.iline = blklist[:]
-        self.arglist = None
-        while self.iline:
-            token = self.iline[0]
-            bindex = None
-            if type(token) == tuple:
-                (token, bindex) = self.iline[0]
-
-            # If the blocks are visible, highlight the current block.
-            if not self.tw.hide and bindex is not None:
-                self.tw.block_list.list[bindex].highlight()
-
-            # In debugging modes, we pause between steps and show the turtle.
-            if self.tw.step_time > 0:
-                self.tw.active_turtle.show()
-                endtime = millis()+self.an_int(self.tw.step_time)*100
-                while millis()<endtime:
-                    yield True
-                self.tw.active_turtle.hide()
-
-            # 'Stand-alone' booleans are handled here.
-            if token == self.symopar:
-                token = self.iline[1]
-                if type(token) == tuple:
-                    (token, bindex) = self.iline[1]
-
-            # Process the token and any arguments.
-            self.icall(self.eval)
-            yield True
-
-            # Time to unhighlight the current block.
-            if not self.tw.hide and bindex is not None:
-                self.tw.block_list.list[bindex].unhighlight()
-
-            if self.procstop:
-                break
-            if self.iresult == None:
-                continue
-
-            if bindex is not None:
-                self.tw.block_list.list[bindex].highlight()
-            raise logoerror(str(self.iresult))
-        self.iline = oldiline
-        self.ireturn()
-        if self.tw.hide is False and self.tw.step_time > 0:
-            self.tw.display_coordinates()
-        yield True
-    
-    def eval(self):
-        """ Evaluate the next token on the line of code we are processing. """
-        token = self.iline.pop(0)
-        bindex = None
-        if type(token) == tuple:
-            (token, bindex) = token
-
-        # Either we are processing a symbol or a value.
-        if type(token) == self.symtype:
-            # We highlight blocks here in case an error occurs...
-            # print "> ", token
-            if not self.tw.hide and bindex is not None:
-                self.tw.block_list.list[bindex].highlight()
-            self.icall(self.evalsym, token)
-            yield True
-            # and unhighlight if everything was OK.
-            if not self.tw.hide and bindex is not None:
-                self.tw.block_list.list[bindex].unhighlight()
-            res = self.iresult
-        else:
-            # print ": ", token
-            res = token
-
-        self.ireturn(res)
-        yield True
-
-    def evalsym(self, token):
-        """ Process primitive associated with symbol token """
-        self.debug_trace(token)
-        self.undefined_check(token)
-        oldcfun, oldarglist = self.cfun, self.arglist
-        self.cfun, self.arglist = token, []
-
-        if token.nargs == None:
-            raise logoerror("#noinput")
-        for i in range(token.nargs):
-            self.no_args_check()
-            self.icall(self.eval)
-            yield True
-            self.arglist.append(self.iresult)
-        if self.cfun.rprim:
-            if type(self.cfun.fcn) == self.listtype:
-                print "evalsym rprim list: ", token
-                self.icall(self.ufuncall, self.cfun.fcn)
-                yield True
-            else:
-                # print "evalsym rprim: ", token
-                self.icall(self.cfun.fcn, *self.arglist)
-                yield True
-            result = None
-        else:
-            # print "evalsym: ", token
-            result = self.cfun.fcn(self, *self.arglist)
-        self.cfun, self.arglist = oldcfun, oldarglist
-        if self.arglist is not None and result == None:
-            raise logoerror("%s %s %s" % \
-                (oldcfun.name, _("did not output to"), self.cfun.name))
-        self.ireturn(result)
-        yield True
-
-    def ufuncall(self, body):
-        """ ufuncall """
-        self.ijmp(self.evline, body)
-        yield True
-    
-    def doevalstep(self):
-        """ evaluate one step """
-        starttime = millis()
-        try:
-            while (millis()-starttime)<120:
-                try:
-                    if self.step is not None:
-                        self.step.next()
-                    else:
-                        return False
-                except StopIteration:
-                    self.tw.turtles.show_all()
-                    return False
-        except logoerror, e:
-            self.tw.showlabel('syntaxerror', str(e)[1:-1])
-            self.tw.turtles.show_all()
-            return False
-        return True
-
-    def ireturn(self, res=None):
-        """ return value """
-        self.step = self.istack.pop()
-        self.iresult = res
-
-    def ijmp(self, fcn, *args):
-        """ ijmp """
-        self.step = fcn(*(args))
-
-    def debug_trace(self, token):
-        """ Display debugging information """
-        if self.trace:
-            if token.name in PALETTES[PALETTE_NAMES.index('turtle')]:
-                my_string = "%s\n%s=%d\n%s=%d\n%s=%d\n%s=%d" % \
-                    (token.name, _('xcor'), int(self.tw.canvas.xcor),
-                     _('ycor'), int(self.tw.canvas.ycor), _('heading'),
-                     int(self.tw.canvas.heading), _('scale'), int(self.scale))
-            elif token.name in PALETTES[PALETTE_NAMES.index('pen')]:
-                if self.tw.canvas.pendown:
-                    penstatus = _('pen down')
-                else:
-                    penstatus = _('pen up')
-                my_string = "%s\n%s\n%s=%d\n%s=%d\n%s=%.1f" % \
-                    (token.name, penstatus, _('color'),
-                     int(self.tw.canvas.color), _('shade'),
-                     int(self.tw.canvas.shade), _('pen size'),
-                     self.tw.canvas.pensize)
-            else:
-                my_string = "%s\n" % (token.name)
-                for k, v in self.boxes.iteritems():
-                    my_string += "%s: %s\n" % (k, str(v))
-            self.tw.showlabel('info', my_string)
-        return
-    
-    def undefined_check(self, token):
-        """ Make sure token has a definition """
-        if token.fcn is not None:
-            return False
-        if token.name == '%nothing%':
-            errormsg = ''
-        else:
-            errormsg = "%s %s" % (_("I don't know how to"), _(token.name))
-        raise logoerror(errormsg)
-    
-    def no_args_check(self):
-        """ Missing argument ? """
-        if self.iline and self.iline[0] is not self.symnothing:
-            return
-        raise logoerror("#noinput")
-    
-    #
-    # Primitives
-    #
-
-    def prim_clear(self):
-        """ Clear screen """
-        stop_media(self)
-        self.tw.canvas.clearscreen()
-
-    def prim_start(self):
-        """ Start block: recenter """
-        if self.tw.running_sugar:
-            self.tw.activity.recenter()
-
-    def prim_wait(self, time):
-        """ Show the turtle while we wait """
-        self.tw.active_turtle.show()
-        endtime = millis()+self.an_int(time*1000)
-        while millis()<endtime:
-            yield True
-        self.tw.active_turtle.hide()
-        self.ireturn()
-        yield True
-    
-    def prim_repeat(self, num, blklist):
-        """ Repeat list num times. """
-        num = self.an_int(num)
-        for i in range(num):
-            self.icall(self.evline, blklist[:])
-            yield True
-            if self.procstop:
-                break
-        self.ireturn()
-        yield True
-
-    def prim_bullet(self, blklist):
-        """ Depreciated bullet-list block style """
-        self.show_bullets(blklist)
-        self.ireturn()
-        yield True
-
-    def prim_list(self, blklist):
-        """ Expandable list block """
-        self.show_list(blklist)
-        self.ireturn()
-        yield True
-
-    def myfunction(self, f, x):
-        """ Programmable block """
-        y = myfunc(f, x)
-        if y == None:
-            stop_logo(self.tw)
-            raise logoerror("#syntaxerror")
-        else:
-            return y
-
-    def prim_forever(self, blklist):
-        """ Do list forever """
-        while True:
-            self.icall(self.evline, blklist[:])
-            yield True
-            if self.procstop:
-                break
-        self.ireturn()
-        yield True
-
-    '''
-    def prim_while(self, list1, list2):
-        list = [self.intern('if')]
-        for i in list1:
-            list.append(i)
-        list.append(list2)
-        while self.icall(self.evline, list[:]):
-            yield True
-        self.ireturn()
-        yield True
-    '''
-
-    def prim_if(self, boolean, blklist):
-        """ If bool, do list """
-        if boolean:
-            self.icall(self.evline, blklist[:])
-            yield True
-        self.ireturn()
-        yield True
-
-    def prim_ifelse(self, boolean, list1, list2):
-        """ If bool, do list1, else do list2 """
-        if boolean:
-            self.ijmp(self.evline, list1[:])
-            yield True
-        else:
-            self.ijmp(self.evline, list2[:])
-            yield True
-
-    def prim_opar(self, val):
-        self.iline.pop(0)
-        return val
-
-    def prim_define(self, name, body):
-        """ Define a primitive """
-        if type(name) is not self.symtype:
-            name = self.intern(name)
-        name.nargs, name.fcn = 0, body
-        name.rprim = True
-    
-    def prim_stack(self, x):
-        """ Process a named stack """
-        if type(convert(x, float, False)) == float:
-            if int(float(x)) == x:
-                x = int(x)
-        if (not self.stacks.has_key('stack3'+str(x))) or\
-           self.stacks['stack3'+str(x)] is None:
-            raise logoerror("#nostack")
-        self.icall(self.evline, self.stacks['stack3'+str(x)][:])
-        yield True
-        self.procstop = False
-        self.ireturn()
-        yield True
-
-    def prim_stack1(self):
-        """ Process Stack 1 """
-        if self.stacks['stack1'] is None:
-            raise logoerror("#nostack")
-        self.icall(self.evline, self.stacks['stack1'][:])
-        yield True
-        self.procstop = False
-        self.ireturn()
-        yield True
-    
-    def prim_stack2(self):
-        """ Process Stack 2 """
-        if self.stacks['stack2'] is None:
-            raise logoerror("#nostack")
-        self.icall(self.evline, self.stacks['stack2'][:])
-        yield True
-        self.procstop = False
-        self.ireturn()
-        yield True
-
-    def prim_stopstack(self):
-        """ Stop execution of a stack """
-        self.procstop = True
-    
-    def prim_print_heap(self):
-        """ Display contents of heap """
-        self.tw.showlabel('status', self.heap)
-
-    def an_int(self, n):
-        """ Raise an error if n doesn't convert to int. """
-        if type(n) == int:
-            return n
-        elif type(n) == float:
-            return int(n)
-        elif type(n) == str:
-            return int(ord(n[0]))
-        else:
-            raise logoerror("%s %s %s %s" \
-                % (self.cfun.name,  _("doesn't like"), str(n), _("as input")))
-
-    def box(self, x):
-        """ Retrieve value from named box """
-        if type(convert(x, float, False)) == float:
-            if int(float(x)) == x:
-                x = int(x)
-        try:
-            return self.boxes['box3'+str(x)]
-        except:
-            raise logoerror("#emptybox")
-    
-    def prim_myblock(self, x):
-        """ Run Python code imported from Journal """
-        if self.tw.myblock is not None:
-            try:
-                if len(x) == 1:
-                    y = myfunc_import(self, self.tw.myblock, x[0])
-                else:
-                    y = myfunc_import(self, self.tw.myblock, x)
-            except:
-                raise logoerror("#nocode")
-        else:
-            raise logoerror("#nocode")
-        return
-    
-    def prim_print(self, n, flag):
-        """ Print n """
-        if flag and (self.tw.hide or self.tw.step_time == 0):
-            return
-        if type(n) == str or type(n) == unicode:
-            if n[0:6] == 'media_':
-                try:
-                    if self.tw.running_sugar:
-                        dsobject = datastore.get(n[6:])
-                        self.tw.showlabel('status', dsobject.metadata['title'])
-                        dsobject.destroy()
-                    else:
-                        self.tw.showlabel('status', n[6:])
-                except:
-                    self.tw.showlabel('status', n)
-            else:
-                self.tw.showlabel('status', n)
-        elif type(n) == int:
-            self.tw.showlabel('status', n)
-        else:
-            self.tw.showlabel('status', round_int(n))
-    
-    def prim_kbinput(self):
-        """ Query keyboard """
-        if len(self.tw.keypress) == 1:
-            self.keyboard = ord(self.tw.keypress[0])
-        else:
-            try:
-                self.keyboard = {'Escape': 27, 'space': 32, ' ': 32,
-                                 'Return': 13, \
-                                 'KP_Up': 2, 'KP_Down': 4, 'KP_Left': 1, \
-                                 'KP_Right': 3,}[self.tw.keypress]
-            except:
-                self.keyboard = 0
-        self.tw.keypress = ""
-
-    def prim_setbox(self, name, x, val):
-        """ Define value of named box """
-        if x is None:
-            self.boxes[name] = val
-        else:
-            if type(convert(x, float, False)) == float:
-                if int(float(x)) == x:
-                    x = int(x)
-            self.boxes[name+str(x)] = val
-
-    def prim_push(self, val):
-        """ Push value onto FILO """
-        self.heap.append(val)
-
-    def prim_pop(self):
-        """ Pop value off of FILO """
-        try:
-            return self.heap.pop(-1)
-        except:
-            raise logoerror ("#emptyheap")
-
-    def empty_heap(self):
-        """ Empty FILO """
-        self.heap = []
-
-    def save_picture(self, name):
-        """ Save canvas to file as PNG """
-        self.tw.save_as_image(name)
-
-    def save_svg(self, name):
-        """ Save SVG to file """
-        self.tw.canvas.svg_close()
-        self.tw.save_as_image(name, True)
-
-    def show_list(self, sarray):
-        """ Display list of media objects """
-        x = self.tw.canvas.xcor/self.tw.coord_scale
-        y = self.tw.canvas.ycor/self.tw.coord_scale
-        for s in sarray:
-            self.tw.canvas.setxy(x, y)
-            self.show(s)
-            y -= int(self.tw.canvas.textsize*self.tw.lead)
-
-    def set_scale(self, x):
-        """ Set scale used by media object display """
-        self.scale = x
-
-    def show(self, string, center=False):
-        """ Show is the general-purpose media-rendering block. """
-        # convert from Turtle coordinates to screen coordinates
-        x = self.tw.canvas.width/2+int(self.tw.canvas.xcor)
-        y = self.tw.canvas.height/2-int(self.tw.canvas.ycor)
-        if type(string) == str or type(string) == unicode:
-            if string == "media_None":
-                pass
-            elif string[0:6] == 'media_':
-                self.insert_image(string, center)
-            elif string[0:6] == 'descr_':
-                self.insert_desc(string)
-            elif string[0:6] == 'audio_':
-                self.play_sound(string)
-            else:
-                if center:
-                    y -= self.tw.canvas.textsize
-                self.tw.canvas.draw_text(string, x, y,
-                                         int(self.tw.canvas.textsize*\
-                                             self.scale/100),
-                                         self.tw.canvas.width-x)
-        elif type(string) == float or type(string) == int:
-            string = round_int(string)
-            if center:
-                y -= self.tw.canvas.textsize
-            self.tw.canvas.draw_text(string, x, y,
-                                     int(self.tw.canvas.textsize*\
-                                         self.scale/100),
-                                     self.tw.canvas.width-x)
-    
-    def insert_image(self, media, center):
-        """ Image only (at current x, y) """
-        w = (self.tw.canvas.width * self.scale)/100
-        h = (self.tw.canvas.height * self.scale)/100
-        # convert from Turtle coordinates to screen coordinates
-        x = self.tw.canvas.width/2+int(self.tw.canvas.xcor)
-        y = self.tw.canvas.height/2-int(self.tw.canvas.ycor)
-        if center:
-            x -= w/2
-            y -= h/2
-        if media[0:5] == 'media':
-            self.show_picture(media, x, y, w, h)
-    
-    def insert_desc(self, media):
-        """ Description text only (at current x, y) """
-        w = (self.tw.canvas.width * self.scale)/100
-        h = (self.tw.canvas.height * self.scale)/100
-        # convert from Turtle coordinates to screen coordinates
-        x = self.tw.canvas.width/2+int(self.tw.canvas.xcor)
-        y = self.tw.canvas.height/2-int(self.tw.canvas.ycor)
-        if media[0:5] == 'descr':
-            self.show_description(media, x, y, w, h)
-
-    def play_sound(self, audio):
-        """ Sound file from Journal """
-        if audio == "" or audio[6:] == "":
-            raise logoerror("#nomedia")
-        if self.tw.running_sugar:
-            if audio[6:] != "None":
-                try:
-                    dsobject = datastore.get(audio[6:])
-                    play_audio(self, dsobject.file_path)
-                except:
-                    print "Couldn't open id: " + str(audio[6:])
-        else:
-            play_audio(self, audio[6:])
-
-    def show_picture(self, media, x, y, w, h):
-        """ Image file from Journal """
-        if media == "" or media[6:] == "":
-            pass
-        elif media[6:] is not "None":
-            pixbuf = None
-            self.filepath = None
-            if self.tw.running_sugar:
-                try:
-                    dsobject = datastore.get(media[6:])
-                    if movie_media_type(dsobject.file_path):
-                        play_movie_from_file(self, dsobject.file_path,
-                                             int(x), int(y), int(w), int(h))
-                    else:
-                        self.filepath = dsobject.file_path
-                        pixbuf = get_pixbuf_from_journal(dsobject,
-                                                         int(w), int(h))
-                    dsobject.destroy()
-                except:
-                    # Maybe it is a pathname instead.
-                    try:
-                        self.filepath = media[6:0]
-                        pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(
-                                                   media[6:], int(w), int(h))
-                    except:
-                        self.filepath = None
-                        self.tw.showlabel('nojournal', media[6:]) 
-                        print "Couldn't open Journal object %s" % (media[6:])
-            else:
-                try:
-                    if movie_media_type(media):
-                        play_movie_from_file(self, media[6:], int(x), int(y),
-                                                              int(w), int(h))
-                    else:
-                        self.filepath = media[6:]
-                        pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(
-                                     media[6:], int(w), int(h))
-                except:
-                    self.filepath = None
-                    self.tw.showlabel('nofile', media[6:]) 
-                    print "Couldn't open media object %s" % (media[6:])
-            if pixbuf is not None:
-                self.tw.canvas.draw_pixbuf(pixbuf, 0, 0, int(x), int(y),
-                                                         int(w), int(h),
-                                           self.filepath)
-
-    def show_description(self, media, x, y, w, h):
-        """ Description field from Journal """
-        if media == "" or media[6:] == "":
-            return
-        elif media[6:] != "None":
-            text = None
-            if self.tw.running_sugar:
-                try:
-                    dsobject = datastore.get(media[6:])
-                    # TODO: handle rtf, pdf, etc. (See #893)
-                    if text_media_type(dsobject.file_path):
-                        f = open(dsobject.file_path, 'r')
-                        text = f.read()
-                        f.close()
-                    else:
-                        text = str(dsobject.metadata['description'])
-                    dsobject.destroy()
-                except:
-                    print "no description in %s" % (media[6:])
-            else:
-                try:
-                    f = open(media[6:], 'r')
-                    text = f.read()
-                    f.close()
-                except:
-                    print "no text in %s?" % (media[6:])
-            if text is not None:
-                self.tw.canvas.draw_text(text, int(x), int(y),
-                                         self.body_height, int(w))
-
-    # Depreciated block methods
-
-    def draw_title(self, title, x, y):
-        """ slide title """
-        self.tw.canvas.draw_text(title, int(x), int(y),
-                                 self.title_height,
-                                 self.tw.canvas.width-x)
-
-    def show_template1x1(self, title, media):
-        """ title, one image, and description """
-        xo = self.tw.calc_position('t1x1')[2]
-        x = -(self.tw.canvas.width/2)+xo
-        y = self.tw.canvas.height/2
-        self.tw.canvas.setxy(x, y)
-        # save the text size so we can restore it later
-        save_text_size = self.tw.canvas.textsize
-        # set title text
-        self.tw.canvas.settextsize(self.title_height)
-        self.show(title)
-        # calculate and set scale for media blocks
-        myscale = 45 * (self.tw.canvas.height - self.title_height*2) \
-                      / self.tw.canvas.height
-        self.set_scale(myscale)
-        # set body text size
-        self.tw.canvas.settextsize(self.body_height)
-        # render media object
-        # leave some space below the title
-        y -= int(self.title_height*2*self.tw.lead)
-        self.tw.canvas.setxy(x, y)
-        self.show(media)
-        if self.tw.running_sugar:
-            x = 0
-            self.tw.canvas.setxy(x, y)
-            self.show(media.replace("media_","descr_"))
-        # restore text size
-        self.tw.canvas.settextsize(save_text_size)
-
-    def show_template2x1(self, title, media1, media2):
-        """ title, two images (horizontal), two descriptions """
-        xo = self.tw.calc_position('t2x1')[2]
-        x = -(self.tw.canvas.width/2)+xo
-        y = self.tw.canvas.height/2
-        self.tw.canvas.setxy(x, y)
-        # save the text size so we can restore it later
-        save_text_size = self.tw.canvas.textsize
-        # set title text
-        self.tw.canvas.settextsize(self.title_height)
-        self.show(title)
-        # calculate and set scale for media blocks
-        myscale = 45 * (self.tw.canvas.height - self.title_height*2)/\
-                  self.tw.canvas.height
-        self.set_scale(myscale)
-        # set body text size
-        self.tw.canvas.settextsize(self.body_height)
-        # render four quadrents
-        # leave some space below the title
-        y -= int(self.title_height*2*self.tw.lead)
-        self.tw.canvas.setxy(x, y)
-        self.show(media1)
-        x = 0
-        self.tw.canvas.setxy(x, y)
-        self.show(media2)
-        y = -self.title_height
-        if self.tw.running_sugar:
-            self.tw.canvas.setxy(x, y)
-            self.show(media2.replace("media_","descr_"))
-            x = -(self.tw.canvas.width/2) + xo
-            self.tw.canvas.setxy(x, y)
-            self.show(media1.replace("media_","descr_"))
-        # restore text size
-        self.tw.canvas.settextsize(save_text_size)
-
-    def show_bullets(self, sarray):
-        """ title and varible number of  bullets """
-        xo = self.tw.calc_position('bullet')[2]
-        x = -(self.tw.canvas.width/2) + xo
-        y = self.tw.canvas.height/2
-        self.tw.canvas.setxy(x, y)
-        # save the text size so we can restore it later
-        save_text_size = self.tw.canvas.textsize
-        # set title text
-        self.tw.canvas.settextsize(self.title_height)
-        self.show(sarray[0])
-        # set body text size
-        self.tw.canvas.settextsize(self.bullet_height)
-        # leave some space below the title
-        y -= int(self.title_height*2*self.tw.lead)
-        for s in sarray[1:]:
-            self.tw.canvas.setxy(x, y)
-            self.show(s)
-            y -= int(self.bullet_height*2*self.tw.lead)
-        # restore text size
-        self.tw.canvas.settextsize(save_text_size)
-    
-    def show_template1x2(self, title, media1, media2):
-        """ title, two images (vertical), two desciptions """
-        xo = self.tw.calc_position('t1x2')[2]
-        x = -(self.tw.canvas.width/2) + xo
-        y = self.tw.canvas.height/2
-        self.tw.canvas.setxy(x, y)
-        # save the text size so we can restore it later
-        save_text_size = self.tw.canvas.textsize
-        # set title text
-        self.tw.canvas.settextsize(self.title_height)
-        self.show(title)
-        # calculate and set scale for media blocks
-        myscale = 45 * (self.tw.canvas.height - self.title_height*2)/\
-                 self.tw.canvas.height
-        self.set_scale(myscale)
-        # set body text size
-        self.tw.canvas.settextsize(self.body_height)
-        # render four quadrents
-        # leave some space below the title
-        y -= int(self.title_height*2*self.tw.lead)
-        self.tw.canvas.setxy(x, y)
-        self.show(media1)
-        if self.tw.running_sugar:
-            x = 0
-            self.tw.canvas.setxy(x, y)
-            self.show(media1.replace("media_","descr_"))
-            y = -self.title_height
-            self.tw.canvas.setxy(x, y)
-            self.show(media2.replace("media_","descr_"))
-            x = -(self.tw.canvas.width/2) + xo
-            self.tw.canvas.setxy(x, y)
-            self.show(media2)
-        # restore text size
-        self.tw.canvas.settextsize(save_text_size)
-
-    def show_template2x2(self, title, media1, media2, media3, media4):
-        """ title and four images """
-        xo = self.tw.calc_position('t2x2')[2]
-        x = -(self.tw.canvas.width/2) + xo
-        y = self.tw.canvas.height/2
-        self.tw.canvas.setxy(x, y)
-        # save the text size so we can restore it later
-        save_text_size = self.tw.canvas.textsize
-        # set title text
-        self.tw.canvas.settextsize(self.title_height)
-        self.show(title)
-        # calculate and set scale for media blocks
-        myscale = 45 * (self.tw.canvas.height - self.title_height*2)/\
-                  self.tw.canvas.height
-        self.set_scale(myscale)
-        # set body text size
-        self.tw.canvas.settextsize(self.body_height)
-        # render four quadrents
-        # leave some space below the title
-        y -= int(self.title_height*2*self.tw.lead)
-        self.tw.canvas.setxy(x, y)
-        self.show(media1)
-        x = 0
-        self.tw.canvas.setxy(x, y)
-        self.show(media2)
-        y = -self.title_height
-        self.tw.canvas.setxy(x, y)
-        self.show(media4)
-        x = -(self.tw.canvas.width/2) + xo
-        self.tw.canvas.setxy(x, y)
-        self.show(media3)
-        # restore text size
-        self.tw.canvas.settextsize(save_text_size)
-
-    def show_template1x1a(self, title, media1):
-        """ title, one media object """
-        xo = self.tw.calc_position('t1x1a')[2]
-        x = -(self.tw.canvas.width/2) + xo
-        y = self.tw.canvas.height/2
-        self.tw.canvas.setxy(x, y)
-        # save the text size so we can restore it later
-        save_text_size = self.tw.canvas.textsize
-        # set title text
-        self.tw.canvas.settextsize(self.title_height)
-        self.show(title)
-        # calculate and set scale for media blocks
-        myscale = 90 * (self.tw.canvas.height - self.title_height*2) /\
-                       self.tw.canvas.height
-        self.set_scale(myscale)
-        # set body text size
-        self.tw.canvas.settextsize(self.body_height)
-        # render media object
-        # leave some space below the title
-        y -= int(self.title_height*2*self.tw.lead)
-        self.tw.canvas.setxy(x, y)
-        self.show(media1)
-        # restore text size
-        self.tw.canvas.settextsize(save_text_size)
-
-    def write(self, string, fsize):
-        """ Write string at size """
-        x = self.tw.canvas.width/2+int(self.tw.canvas.xcor)
-        y = self.tw.canvas.height/2-int(self.tw.canvas.ycor)
-        self.tw.canvas.draw_text(string, x, y-15, int(fsize),
-                                 self.tw.canvas.width)
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