[pygtk] Pixmap, DrawingArea, Viewport, Scrolledwindow

[Nick Peters]

A.T.Hofkamp wrote:
> Nick Peters wrote:
>> A.T.Hofkamp wrote:
>>> Nick Peters wrote:
>>>
>>>>         if response == gtk.RESPONSE_OK:
>>>>             print open_dialog.get_filename(), 'selected'
>>>>             #load the Image the user selected.
>>>>             rpg_map =
>>>> gtk.gdk.pixbuf_new_from_file(open_dialog.get_filename())
>>> I am missing the resize of the DrawingArea (self.area in my case):
>>>
>>> self.area.set_size_request(rpg_map.get_width(),
>>>                        rpg_map.get_height())
>>>
>>> this notifies that the area has grown, and updates the scrollbars.
>>>
>>>
>>> Albert
>>>
>> Thanks very much! I remember reading about that method, however i
>> mistakenly thought it was for resizing the drawingarea! Thanks for the
>> clarification!
>
> The method is intended for resizing the drawing area, actually.
>
> You don't show the drawing area, you show the ScrolledWindow. That
> means the size of the window at the screen is the size of the scrolled
> window, not of the drawing area.
>
> The scrolled window however needs to know the size of the widget it
> displays (ie the drawing area) for managing the bars. It does that by
> simply asking its child widget (the drawing area) about its size.[1]
>
> Albert
>
> [1] Actually, it does not 'ask', it gets an update with every change.
>
Thanks very much for the clarification!

-Nick Peters