From 195b840e6feca6089768941a694ec9832f509006 Mon Sep 17 00:00:00 2001
From: Walter Bender <walter@walter-laptop.(none)>
Date: Wed, 03 Feb 2010 18:28:17 +0000
Subject: tighter turtle display code

---
diff --git a/tacanvas.py b/tacanvas.py
index bc42a63..362cc7f 100644
--- a/tacanvas.py
+++ b/tacanvas.py
@@ -99,7 +99,6 @@ class TurtleGraphics:
             self.xcor, self.ycor, self.heading = 0, 0, 0
             self.move_turtle()
             self.turn_turtle()
-        self.tw.turtle_list.show_all()
         self.set_turtle(0)
 
     def forward(self, n):
@@ -307,14 +306,13 @@ class TurtleGraphics:
     def move_turtle(self):
         x, y = self.width/2+int(self.xcor), self.height/2-int(self.ycor)
         self.tw.active_turtle.move((self.cx+x-30, self.cy+y-30))
-        self.invalt(x-30,y-30,60,60)
+        # self.invalt(x-30,y-30,60,60)
 
     def invalt(self, x, y, w, h):
         rect = gtk.gdk.Rectangle(int(x+self.cx), int(y+self.cy), int(w),int(h))
         self.tw.area.invalidate_rect(rect, False)
 
     def set_turtle(self, i):
-        # TODO: reskin active turtle
         if i > self.tw.turtle_list.turtle_count()-1:
             # if it is a new turtle, start it in the center of the screen
             self.tw.active_turtle = self.tw.turtle_list.get_turtle(i, True)
@@ -333,5 +331,3 @@ class TurtleGraphics:
         self.setshade(self.tw.active_turtle.get_shade())
         self.setpensize(self.tw.active_turtle.get_pen_size())
         self.pendown = self.tw.active_turtle.get_pen_state()
-        self.tw.turtle_list.show_all()
-        
diff --git a/talogo.py b/talogo.py
index 0180ff5..09c18b4 100644
--- a/talogo.py
+++ b/talogo.py
@@ -158,7 +158,8 @@ def calc_position(tw, t):
 def stop_logo(tw):
     tw.step_time = 0
     tw.lc.step = just_stop()
-    
+    tw.turtle_list.show_all()
+
 def just_stop():
     yield False
 
@@ -400,8 +401,8 @@ class LogoCode:
         self.tw.active_turtle.hide() # Hide the turtle while we are running.
         self.procstop = False
         list = self.readline(str)
-        # print list
         self.step = self.start_eval(list)
+        # self.tw.turtle_list.show_all()
 
     """
     Convert the pseudocode into a list of commands.
@@ -462,7 +463,6 @@ class LogoCode:
         oldiline = self.iline
         self.iline = list[:]
         self.arglist = None
-        # print "evline: %s" % (self.iline)
         while self.iline:
             if self.tw.step_time > 0: # show the turtle during idle time
                 self.tw.active_turtle.show()
@@ -490,7 +490,6 @@ class LogoCode:
     """
     def eval(self, infixarg=False):
         token = self.iline.pop(0)
-        # print "eval: %s" % (str(token))
         if type(token) == self.symtype:
             self.icall(self.evalsym, token)
             yield True
@@ -513,7 +512,6 @@ class LogoCode:
         self.undefined_check(token)
         oldcfun, oldarglist = self.cfun, self.arglist
         self.cfun, self.arglist = token, []
-        # print "   evalsym: %s %s" % (str(self.cfun), str(self.arglist))
         if token.nargs == None:
             raise logoerror("#noinput")
         for i in range(token.nargs):
@@ -532,7 +530,6 @@ class LogoCode:
         else:
             # TODO: find out why stopstack args are mismatched
             if token.name == 'stopstack':
-                print "%s: %d" % (token.name, len(self.arglist))
                 result = self.cfun.fcn()
             else:
                 result = self.cfun.fcn(self, *self.arglist)
diff --git a/taturtle.py b/taturtle.py
index 42a54c9..acf051e 100644
--- a/taturtle.py
+++ b/taturtle.py
@@ -80,6 +80,7 @@ class Turtle:
                        scale=1.0):
         self.x = 0
         self.y = 0
+        self.hidden = False
         self.shapes = []
         self.type = 'turtle'
         self.heading = 0
@@ -110,9 +111,11 @@ class Turtle:
         self.heading = heading        
         i = (int(self.heading+5)%360)/10
         try:
-            self.spr.set_shape(self.shapes[i])
+            if self.hidden is False:
+                self.spr.set_shape(self.shapes[i])
         except IndexError:
-            self.spr.set_shape(self.shapes[0])
+            if self.hidden is False:
+                self.spr.set_shape(self.shapes[0])
             print "Turtle shape IndexError %f -> %d" % (heading, i)
 
     def set_color(self, color):
@@ -129,13 +132,18 @@ class Turtle:
 
     def hide(self):
         self.spr.set_layer(HIDE_LAYER)
+        self.hidden = True
 
     def show(self):
         self.spr.set_layer(TURTLE_LAYER)
+        self.hidden = False
+        self.move((self.x, self.y))
+        self.set_heading(self.heading)
 
     def move(self, pos):
         self.x, self.y = pos[0], pos[1]
-        self.spr.move(pos)
+        if self.hidden is False:
+            self.spr.move(pos)
 
     def get_xy(self):
         return(self.x, self.y)
diff --git a/tawindow.py b/tawindow.py
index 6841d01..4309912 100644
--- a/tawindow.py
+++ b/tawindow.py
@@ -1606,11 +1606,11 @@ class TurtleArtWindow():
             elif btype == 'hspace' or btype == 'identity2':
                 if value is not None:
                     blk.expand_in_x(value)
-            elif btype == 'list':
+            elif btype == 'templatelist':
                 for i in range(len(b[4])-4):
                     dy = blk.add_arg()
         elif btype in BOX_STYLE_MEDIA and len(blk.values)>0:
-            if blk.values[0] == 'None':
+            if blk.values[0] == 'None' or blk.values[0] == None:
                 blk.spr.set_image(self.media_shapes[btype+'off'], 1,
                                   MEDIA_X, MEDIA_Y)
             elif btype == 'audio' or btype == 'description':
--
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