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

[Ben Abbott]

On Mar 12, 2012, at 10:10 AM, Michael Goffioul wrote:

> On Mon, Mar 12, 2012 at 2:04 PM, Ben Abbott <address@hidden> wrote:
> 
>> On Mar 12, 2012, at 5:41 AM, Michael Goffioul wrote:
>> 
>>> 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.
>> 
>> I took a quick look.  I think I'm following the part below
>> 
>> graphics.cc (base_properties::set_from_list)
>> 
>> But I don't see where base_graphics_object::set is defined.
> 
> In the auto-generated graphics-prop.cc file.

Do you mean to refer to base_properties::set() ?

>> In any event, set_<property>() should call the updaters correct ?
> 
> Yes.
> 
> Michael.