Re: pixbuf outermost pixels are white

[sandmann cs au dk (Søren Sandmann)]

Jan Kratochvil <jan jankratochvil net> writes:

> Hi,
>
> I found somewhere on web how to draw custom data images into a widget using
> Pixbuf.  It basically works.
>
> Unfortunately the image always has the outermost source pixels mixed with
> white border.  I want the whole window to be just blue but it is not:
>       http://www.jankratochvil.net/t/pixbuf.png
>       Fedora 19 x86_64: gtk3-3.8.2-2.fc19.x86_64
> gtkmm30-3.8.1-1.fc19.x86_64

You probably want to set the extend mode to CAIRO_EXTEND_PAD by doing
the C++ equivalent of this:

    cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD);

after setting the pixbuf as the cairo source.


Søren