Re: Updaters and default property values (was :Changeset 14257 oddities)

[Michael Goffioul]

On Mon, Mar 12, 2012 at 1:48 AM, Ben Abbott <address@hidden> wrote:
> Rik,
>
> I just realized the images produced for the docs are modifying the default 
> paperorientation to "landscape". The entire sequence is ...
>
> function set_print_size ()
>  image_size = [5.0, 3.5];
>  border = 0;
>  set (0, "defaultfigurepapertype", "<custom>");
>  set (0, "defaultfigurepaperorientation", "landscape");
>  set (0, "defaultfigurepapersize", image_size + 2*border);
>  set (0, "defaultfigurepaperposition", [border, border, image_size]);
> endfunction
>
> And when the defaults are populated into a new figure the updating of the 
> property values are not working as intended.
>
> This is causing the images for the figures to be rotated and cropped.
>
> I'm unfamiliar with how the initialization of an objects properties works.
>
> Can someone explain the process to me, or point me to code that does this?

This is achieved in base_properties::set_from_list. This ends up
calling base_graphics_object::set, which will should end up calling
set_<property>.

Michael.