Add the bulk of SF patch 595111 by Attila Babo.
This adds new methods heading(), setheading(), position(),
window_width(), window_height(), setx(), and sety(), to make this more
functionality-compatible with Logo turtle graphics (Attila's last
words, not mine :-). I had to fix the sety() code which was broken in
Attila's patch.
I'm not adopting the functionality change that Attila claimed was a
bugfix (no output without tracing), because I disagree that it's a
bug.
diff --git a/Lib/lib-tk/turtle.py b/Lib/lib-tk/turtle.py
index 1b418eb..d59cd7a 100644
--- a/Lib/lib-tk/turtle.py
+++ b/Lib/lib-tk/turtle.py
@@ -2,6 +2,7 @@
from math import * # Also for export
import Tkinter
+
class Error(Exception):
pass
@@ -53,7 +54,6 @@
self._delete_turtle()
self._draw_turtle()
-
def tracer(self, flag):
self._tracing = flag
if not self._tracing:
@@ -118,7 +118,6 @@
self._color = color
self._draw_turtle()
-
def write(self, arg, move=0):
x, y = start = self._position
x = x-1 # correction -- calibrated for Windows
@@ -200,6 +199,40 @@
if self._filling:
self._path.append(self._position)
self._draw_turtle()
+
+ def heading(self):
+ return self._angle
+
+ def setheading(self, angle):
+ self._angle = angle
+ self._draw_turtle()
+
+ def window_width(self):
+ width = self._canvas.winfo_width()
+ if width <= 1: # the window isn't managed by a geometry manager
+ width = self._canvas['width']
+ return width
+
+ def window_height(self):
+ height = self._canvas.winfo_height()
+ if height <= 1: # the window isn't managed by a geometry manager
+ height = self._canvas['height']
+ return height
+
+ def position(self):
+ x0, y0 = self._origin
+ x1, y1 = self._position
+ return [x1-x0, -y1+y0]
+
+ def setx(self, xpos):
+ x0, y0 = self._origin
+ x1, y1 = self._position
+ self._goto(x0+xpos, y1)
+
+ def sety(self, ypos):
+ x0, y0 = self._origin
+ x1, y1 = self._position
+ self._goto(x1, y0-ypos)
def goto(self, *args):
if len(args) == 1:
@@ -326,6 +359,13 @@
def fill(flag): _getpen().fill(flag)
def circle(radius, extent=None): _getpen().circle(radius, extent)
def goto(*args): apply(_getpen().goto, args)
+def heading(): return _getpen().heading()
+def setheading(angle): _getpen().setheading(angle)
+def position(): return _getpen().position()
+def window_width(): return _getpen().window_width()
+def window_height(): return _getpen().window_height()
+def setx(xpos): _getpen().setx(xpos)
+def sety(ypos): _getpen().sety(ypos)
def demo():
reset()