gtk2/gtk/a11y/gailprogressbar.c
2011-07-05 16:07:56 -04:00

134 lines
4.4 KiB
C

/* GAIL - The GNOME Accessibility Implementation Library
* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "gailprogressbar.h"
#include "gailadjustment.h"
static void gail_progress_bar_class_init (GailProgressBarClass *klass);
static void gail_progress_bar_init (GailProgressBar *bar);
static void gail_progress_bar_real_initialize (AtkObject *obj,
gpointer data);
static void atk_value_interface_init (AtkValueIface *iface);
static void gail_progress_bar_real_notify_gtk (GObject *obj,
GParamSpec *pspec);
static void gail_progress_bar_get_current_value (AtkValue *obj,
GValue *value);
static void gail_progress_bar_get_maximum_value (AtkValue *obj,
GValue *value);
static void gail_progress_bar_get_minimum_value (AtkValue *obj,
GValue *value);
G_DEFINE_TYPE_WITH_CODE (GailProgressBar, gail_progress_bar, GAIL_TYPE_WIDGET,
G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))
static void
gail_progress_bar_class_init (GailProgressBarClass *klass)
{
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
GailWidgetClass *widget_class;
widget_class = (GailWidgetClass*)klass;
widget_class->notify_gtk = gail_progress_bar_real_notify_gtk;
class->initialize = gail_progress_bar_real_initialize;
}
static void
gail_progress_bar_init (GailProgressBar *bar)
{
}
static void
gail_progress_bar_real_initialize (AtkObject *obj,
gpointer data)
{
ATK_OBJECT_CLASS (gail_progress_bar_parent_class)->initialize (obj, data);
obj->role = ATK_ROLE_PROGRESS_BAR;
}
static void
atk_value_interface_init (AtkValueIface *iface)
{
iface->get_current_value = gail_progress_bar_get_current_value;
iface->get_maximum_value = gail_progress_bar_get_maximum_value;
iface->get_minimum_value = gail_progress_bar_get_minimum_value;
}
static void
gail_progress_bar_get_current_value (AtkValue *obj,
GValue *value)
{
GtkWidget *widget;
g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj));
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
memset (value, 0, sizeof (GValue));
g_value_init (value, G_TYPE_DOUBLE);
g_value_set_double (value, gtk_progress_bar_get_fraction (GTK_PROGRESS_BAR (widget)));
}
static void
gail_progress_bar_get_maximum_value (AtkValue *obj,
GValue *value)
{
g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj));
memset (value, 0, sizeof (GValue));
g_value_init (value, G_TYPE_DOUBLE);
g_value_set_double (value, 1.0);
}
static void
gail_progress_bar_get_minimum_value (AtkValue *obj,
GValue *value)
{
g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj));
memset (value, 0, sizeof (GValue));
g_value_init (value, G_TYPE_DOUBLE);
g_value_set_double (value, 0.0);
}
static void
gail_progress_bar_real_notify_gtk (GObject *obj,
GParamSpec *pspec)
{
GtkWidget *widget = GTK_WIDGET (obj);
GailProgressBar *progress_bar = GAIL_PROGRESS_BAR (gtk_widget_get_accessible (widget));
if (strcmp (pspec->name, "fraction") == 0)
g_object_notify (G_OBJECT (progress_bar), "accessible-value");
else
GAIL_WIDGET_CLASS (gail_progress_bar_parent_class)->notify_gtk (obj, pspec);
}