On Sun, Feb 17, 2013 at 11:37:28PM +0900, Tristan Van Berkom wrote:
> If you take the ruler widget code from GTK+2, you should be
> able to very easily use it compiling against GTK+3... You'll
> need to change ->expose_event() and ->size_request()
> appropriately (for ruler code, you should only need to
> implement ->get_preferred_width()/->get_preferred_height()
> since there's no complex height-for-width stuff to do
> in there).
>
> Perhaps, if you port the widget (as I mentioned it should
> be quite easy), we could then add the ported version
> to libegg, where people (if any) need it they can easily
> copy it into their sources.
I forked GtkRuler a long time ago because I needed stuff such as
different units, scientific number format, etc.
I have a Gtk+3 version now (not much theming support), you can see how
it looks here
http://gwyddion.net/gwyddion-3/libgwyui/GwyRuler.html
and the code is
https://sourceforge.net/p/gwyddion/code/HEAD/tree/branches/GWYDDION-3/libgwyui/ruler.c
but it's much more dependent on other Gwyddion stuff than GwyScroller I
linked couple of days ago so it's probably difficult to reuse.
Concerining the requirement to implement GtkOrientalble, that's mostly
frameworkish rubbish. Rulers can be placed on *four* possible sides of
some area. So they have up/down/left/right looks and orientations, not
two.
Regards,
Yeti
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