Terry J. Reedy added the comment:
I reviewed code and made the following changes in uploaded file:
Move some code and blank lines around.
Since you left packing within mBar frame, removed
self.mBar.grid_columnconfigure(0, weight=1)
Since the only thing packed in the left frame was the text frame, renamed
makeLeftFrame to makeTextFrame, removed the left frame and returned the text
frame to be gridded directly. Works fine.
Remove left_frame, graph_frame temporaries.
The questions that stopped me from pushing this are about the following lines
in makeGraphicFrame.
self._canvas = turtle.ScrolledCanvas(root,
800, 600,
self.canvwidth, self.canvheight)
turtle._Screen._canvas = self._canvas #*
turtle._Screen._canvas.adjustScrolls()
turtle._Screen._canvas._rootwindow.bind('<Configure>', self.onResize)
turtle._Screen._canvas._canvas['borderwidth'] = 0
turtle._Screen._canvas.grid(row=0, column=0, sticky='news') ##
...
return turtle._Screen._canvas
It seems that in all lines except #*, 'turtle._Screen._canvas' could be
replaced by 'self._canvas' or even a 'canvas' temporary. The ## line seems
wrong, as the parent is root and 0,0 is not where the canvas shoud be gridded
and indeed not where it is gridded after being returned. The demo seems fine
after commenting out the line. So it seems that the following should work.
self._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
...
return canvas
Am I missing something? Just curious, what is the <Configure> event? Or
rather, what generates it?
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<http://bugs.python.org/issue21597>
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