Re: Ruler Class in GTK+ 3

[Stefan Sauer <ensonic hora-obscura de>]

On 01/09/2015 05:12 PM, Emmanuele Bassi wrote:
> hi;
>
> On 9 January 2015 at 16:02, Kamalpreet Grewal <grewalkamal005 gmail com> wrote:
>
> > I am trying to add ruler to my application based on GTK+ 3.
> >
> > A class namely  is available in GTK2. I havebeen trying to find a
> > class serving the purpose of ruler in GTK+ 3.
> >
> > What are the possible classes available for this implementation?
> none. GtkRuler was deprecated in GTK+ 2.x and removed in GTK+ 3.x.
> it's a *very* niche widget, and most applications that use one in
> their UI ended up having their own class.
>
> my suggestion is to look at ruler widgets in GIMP and Inkscape.
>
> if you want to draw your own, you can use a GtkDrawingArea subclass
> with a custum draw() virtual function.
>
> ciao,
>  Emmanuele.
+1 you essentially need a draw function. This is what I did when porting
to gtk+-3
https://github.com/Buzztrax/buzztrax/blob/master/src/ui/edit/signal-analysis-dialog.c#L552-615
there is a 2nd with a log scale in the same file.

Stefan