textview - all text viewable?

[txtoth]

For a textview in a scrolledwindow is there a way to know that all of
the text can be seen without scrolling? Can one know if the vertical
scrollbar   is displayed? I want to only enable a button when all of
the text has been reviewed by scrolling to the bottom but if there
isn't enough text to require scrolling I want to simply enable the
button.
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[towb]

On 26.05.2012, at 18:08, Ted Toth wrote:

> For a textview in a scrolledwindow is there a way to know that all of the text can be seen without scrolling?

s = buffer.get_start_iter()
e = buffer.get_end_iter()
r = view.get_visible_rect()
y, _ = view.get_line_yrange(s)
start_in_sight = y < r.y
y, _ = view.get_line_yrange(e)
end_in_sight = y < (r.y + r.height)

(untested)

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