Bug #519090. Add accessibility support to GtkScaleButton. Support action

Bug #519090. Add accessibility support to GtkScaleButton. Support action

2009-02-26  Li Yuan  <li.yuan@sun.com>

        * Makefile.am:
        * gail.c: (gail_accessibility_module_init):
        * gail.h:
        * gailscalebutton.c: (gail_scale_button_class_init),
        (gail_scale_button_init), (gail_scale_button_initialize),
        (atk_action_interface_init), (gail_scale_button_do_action),
        (gail_scale_button_get_n_actions),
        (gail_scale_button_get_description),
        (gail_scale_button_action_get_name),
        (gail_scale_button_get_keybinding),
        (gail_scale_button_set_description), (atk_value_interface_init),
        (gail_scale_button_get_current_value),
        (gail_scale_button_get_maximum_value),
        (gail_scale_button_get_minimum_value),
        (gail_scale_button_get_minimum_increment),
        (gail_scale_button_set_current_value),
        (gail_scale_button_notify_gtk):
        * gailscalebutton.h:
        Bug #519090. Add accessibility support to GtkScaleButton.
        Support action and value interfaces. Patch from Jan Arne
Petersen.

svn path=/trunk/; revision=22411