diff options
| -rwxr-xr-x | Lib/turtledemo/__main__.py | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/Lib/turtledemo/__main__.py b/Lib/turtledemo/__main__.py index caea022..f6c9d6a 100755 --- a/Lib/turtledemo/__main__.py +++ b/Lib/turtledemo/__main__.py @@ -203,10 +203,10 @@ class DemoWindow(object): def onResize(self, event): - cwidth = self._canvas.winfo_width() - cheight = self._canvas.winfo_height() - self._canvas.xview_moveto(0.5*(self.canvwidth-cwidth)/self.canvwidth) - self._canvas.yview_moveto(0.5*(self.canvheight-cheight)/self.canvheight) + cwidth = self.canvas.winfo_width() + cheight = self.canvas.winfo_height() + self.canvas.xview_moveto(0.5*(self.canvwidth-cwidth)/self.canvwidth) + self.canvas.yview_moveto(0.5*(self.canvheight-cheight)/self.canvheight) def makeTextFrame(self, root): self.text_frame = text_frame = Frame(root) @@ -237,19 +237,23 @@ class DemoWindow(object): return text_frame def makeGraphFrame(self, root): + # t._Screen is a singleton class instantiated or retrieved + # by calling Screen. Since tdemo canvas needs a different + # configuration, we manually set class attributes before + # calling Screen and manually call superclass init after. turtle._Screen._root = root + self.canvwidth = 1000 self.canvheight = 800 - turtle._Screen._canvas = self._canvas = canvas = turtle.ScrolledCanvas( + turtle._Screen._canvas = self.canvas = canvas = turtle.ScrolledCanvas( root, 800, 600, self.canvwidth, self.canvheight) canvas.adjustScrolls() canvas._rootwindow.bind('<Configure>', self.onResize) canvas._canvas['borderwidth'] = 0 - self.screen = _s_ = turtle.Screen() - turtle.TurtleScreen.__init__(_s_, _s_._canvas) - self.scanvas = _s_._canvas - turtle.RawTurtle.screens = [_s_] + self.screen = screen = turtle.Screen() + turtle.TurtleScreen.__init__(screen, canvas) + turtle.RawTurtle.screens = [screen] return canvas def set_txtsize(self, size): @@ -373,7 +377,7 @@ class DemoWindow(object): def clearCanvas(self): self.refreshCanvas() self.screen._delete("all") - self.scanvas.config(cursor="") + self.canvas.config(cursor="") self.configGUI(NORMAL, DISABLED, DISABLED) def stopIt(self): |