Re: [g-a-devel] How to set an AtkAttribute?

["Quiring, Sam" <Sam Quiring windriver com>]

Li,

Aha.  I think I get it.  I am supposed to replace the value of
get_attributes (as defined in atk/atkobject.h):

    AtkAttributeSet* (*get_attributes) (AtkObject *accessible);

with my own routine which will return the AtkAttributeSet*.  Right?

I got faked out because many (all?) of the strongly-typed attributes
(e.g., name, description) can be explicitly set in Atk:

    atk_object_set_name()
    atk_object_set_description()

I was searching for a routine in the Atk library that would follow this
same pattern for an object attribute, like this:

    atk_object_set_attribute()

Mea culpa.

-Sam


-----Original Message-----
From: gnome-accessibility-devel-bounces gnome org
[mailto:gnome-accessibility-devel-bounces gnome org] On Behalf Of
Quiring, Sam
Sent: Thursday, September 10, 2009 6:45 AM
To: Li Yuan sun com
Cc: Gnome-accessibility-devel gnome org
Subject: Re: [g-a-devel] How to set an AtkAttribute?

Li,

I read the reference.  I had already seen it in my search for an answer
It describes what is and is not normally in the AttributeSet returned
from Accessible:getAttributes().  It does *not* describe how to
programmatically introduce an attribute into the
Accessibility::AttributeSet for an object.

What ATK methods do I call to associate an attribute:

Wireframe=cylinder

with my AtkObject so that an AT-SPI client calling
Accessible_getAttributes() will retrieve this attribute.

I've searched the ATK interfaces and I do not see a way to do it.

-Sam

 

-----Original Message-----
From: Li Yuan sun com [mailto:Li Yuan sun com] 
Sent: Wednesday, September 09, 2009 7:46 PM
To: Quiring, Sam
Cc: Gnome-accessibility-devel gnome org
Subject: Re: [g-a-devel] How to set an AtkAttribute?

Hi Quiring,

You can find the document at
http://www.gnome.org/~billh/at-spi-idl/html/namespaceAccessibility.html#
a1

Li

On Wed, 2009-09-09 at 15:38 -0700, Quiring, Sam wrote:
> Greetings,
> 
> I'm adding ATK support to a Python platform that implements its own
> graphics library.  I would like to create an attribute:
> 
>     Wireframe=cylinder
> 
>     attribute name:  "Wireframe"
>     attribute value: "cylinder"
> 
> I want to add this attribute to the set of attributes associated with
my
> AtkObject so when an AT-SPI client calls Accessible_getAttributes()
this
> attribute will be returned among the set. 
> 
> Is this supported?  How do you do it in ATK?
> 
> -Sam
> _______________________________________________
> Gnome-accessibility-devel mailing list
> Gnome-accessibility-devel gnome org
> http://mail.gnome.org/mailman/listinfo/gnome-accessibility-devel

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