Re: Ellipsizing

[Phil Wolff <adiabat centurylink net>]

I just found Pango::Layout::is_ellipsized(). Since there's 
CellRendererText::property_ellipsize(), it seems reasonable to think it 
has access to a Pango::Layout for the rendering of the text; maybe it 
should also have a property_is_ellipsized() — that's probably a 
GtkCellRendererText enhancement, yes?

Thanks for the hint — I'll give it a try.

On 01/29/2018 12:47 PM, Daniel Boles wrote:
> I had the same desire and arrived at this method. I can't vouch for 
> whether it works in every situation, but it has never seemed to fail 
> for me.
>
> The idea is that you force the full natural request by setting 
> :max-width-chars to -1, get that request, then check whether it's 
> below the actual allocation and en/disable the tooltip accordingly. 
> then, of course, change :max-width-chars back to something that allows 
> ellipsisation
>
> so, in short:
>
>   * set_max_width_chars(-1);
>   * get_preferred_width(dummy, natural);
>   * set_has_tooltip( natural < get_allocated_width() );
>   * set_max_width_chars(0);
>
>
>
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