Re: GtkTextView with transparent background

[Vikram Noel Ambrose <noel ambrose gmail com>]

Daniel Svensson wrote:
> To make things a bit more clear I've hacked together a small demo that
> hopefully demonstrates what I'm looking for:
>
> http://3e01742654c8c52a.paste.se/
>
> ...and hopefully provides boilerplate for people to experiment with.
>
> If you don't have vala installed here's a pre-generated C version:
>
> http://96851e75f5a1b424.paste.se/
>
> The demo can be closed by pressing ESC. To resize the textview drag in
> the south-east corner, to move it drag in the north west corner. The
> result I want to archive is that the text should be rendered on the
> gradient, without the white background.
>
>   


I get it now.

Using the current size and coordinates of the GtkTextView, couldn't you 
get a copy of that area of the pixbuf/RGBA of the GtkWindow behind it? 
And then apply that as a background to the GtkTextView?

Intercepting the expose event - http://tinyurl.com/y9cthbb
GtkTextView background - http://tinyurl.com/yburko9
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