Re: Vertical text in buttons, etc.

[Owen Taylor <otaylor redhat com>]

On Fri, 2003-02-07 at 00:18, Biswapesh Chattopadhyay wrote:
> On Thu, 2003-02-06 at 21:43, Owen Taylor wrote:
> > On Wed, 2003-02-05 at 01:42, Biswapesh Chattopadhyay wrote:
> > > Hi
> > >
> > > I need a widget with vertical tabs/buttons with text, as in JEdit. You
> > > can get an idea from the left part of the image here:
> > >
> > > http://sourcebase.sourceforge.net/vertical-text.png
> > >
> > > How do I do this in GTK+ ?
> >
> > Basically, you can't currently.
>
> Is this planned for future versions of GTK+ (say 2.4) ? It seems this
> can be done in QT
> (http://www.kdevelop.org/graphics/pic_corner/gideon-3.0.png) , Swing
> (previous figure), Windows (used by Topstyle, VS.net, etc.), etc.

It's been on the TODO list for a while... probably not 2.4 at this
point, but likely by 2.6.

> > A possible workaround:
> >
> >  - Draw the text to a pixmap (using gdk_draw_pango_layout())
> >  - Retrieve that back into a GdkPixbuf (gdk_pixbuf_from_drawable())
> >  - Put the GdkPixbuf into the button (Add a GtkImage to an
> >    empty GtkButton)
> Seems rather complicated :-( Where do I rotate the text ? Do I rorate
> the pixbuf after rendering the text or something ?

You'll have to write your own rotation function (using the ability
to access the pixel data for GdkPixbuf) or find one somewhere ...
GTK+ doesn't have a rotate function built oin.

But the idea of getting it to a pixbuf is that it is possible to
write such a function since access to the pixel data pretty easy.

Regards, 
                                 Owen