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/* 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 "gailspinbutton.h"
#include "gailadjustment.h"
#include "gail-private-macros.h"
static void gail_spin_button_class_init (GailSpinButtonClass *klass);
static void gail_spin_button_init (GailSpinButton *button);
static void gail_spin_button_real_initialize (AtkObject *obj,
gpointer data);
static void gail_spin_button_finalize (GObject *object);
static void atk_value_interface_init (AtkValueIface *iface);
static void gail_spin_button_real_notify_gtk (GObject *obj,
GParamSpec *pspec);
static void gail_spin_button_get_current_value (AtkValue *obj,
GValue *value);
static void gail_spin_button_get_maximum_value (AtkValue *obj,
GValue *value);
static void gail_spin_button_get_minimum_value (AtkValue *obj,
GValue *value);
static gboolean gail_spin_button_set_current_value (AtkValue *obj,
const GValue *value);
static void gail_spin_button_value_changed (GtkAdjustment *adjustment,
gpointer data);
G_DEFINE_TYPE_WITH_CODE (GailSpinButton, gail_spin_button, GAIL_TYPE_ENTRY,
G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))
static void
gail_spin_button_class_init (GailSpinButtonClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
GailWidgetClass *widget_class;
widget_class = (GailWidgetClass*)klass;
widget_class->notify_gtk = gail_spin_button_real_notify_gtk;
class->initialize = gail_spin_button_real_initialize;
gobject_class->finalize = gail_spin_button_finalize;
}
static void
gail_spin_button_init (GailSpinButton *button)
{
}
static void
gail_spin_button_real_initialize (AtkObject *obj,
gpointer data)
{
GailSpinButton *spin_button = GAIL_SPIN_BUTTON (obj);
GtkSpinButton *gtk_spin_button;
ATK_OBJECT_CLASS (gail_spin_button_parent_class)->initialize (obj, data);
gtk_spin_button = GTK_SPIN_BUTTON (data);
/*
* If a GtkAdjustment already exists for the spin_button,
* create the GailAdjustment
*/
if (gtk_spin_button->adjustment)
{
spin_button->adjustment = gail_adjustment_new (gtk_spin_button->adjustment);
g_signal_connect (gtk_spin_button->adjustment,
"value-changed",
G_CALLBACK (gail_spin_button_value_changed),
obj);
}
else
spin_button->adjustment = NULL;
obj->role = ATK_ROLE_SPIN_BUTTON;
}
static void
atk_value_interface_init (AtkValueIface *iface)
{
iface->get_current_value = gail_spin_button_get_current_value;
iface->get_maximum_value = gail_spin_button_get_maximum_value;
iface->get_minimum_value = gail_spin_button_get_minimum_value;
iface->set_current_value = gail_spin_button_set_current_value;
}
static void
gail_spin_button_get_current_value (AtkValue *obj,
GValue *value)
{
GailSpinButton *spin_button;
g_return_if_fail (GAIL_IS_SPIN_BUTTON (obj));
spin_button = GAIL_SPIN_BUTTON (obj);
if (spin_button->adjustment == NULL)
/*
* Adjustment has not been specified
*/
return;
atk_value_get_current_value (ATK_VALUE (spin_button->adjustment), value);
}
static void
gail_spin_button_get_maximum_value (AtkValue *obj,
GValue *value)
{
GailSpinButton *spin_button;
g_return_if_fail (GAIL_IS_SPIN_BUTTON (obj));
spin_button = GAIL_SPIN_BUTTON (obj);
if (spin_button->adjustment == NULL)
/*
* Adjustment has not been specified
*/
return;
atk_value_get_maximum_value (ATK_VALUE (spin_button->adjustment), value);
}
static void
gail_spin_button_get_minimum_value (AtkValue *obj,
GValue *value)
{
GailSpinButton *spin_button;
g_return_if_fail (GAIL_IS_SPIN_BUTTON (obj));
spin_button = GAIL_SPIN_BUTTON (obj);
if (spin_button->adjustment == NULL)
/*
* Adjustment has not been specified
*/
return;
atk_value_get_minimum_value (ATK_VALUE (spin_button->adjustment), value);
}
static gboolean
gail_spin_button_set_current_value (AtkValue *obj,
const GValue *value)
{
GailSpinButton *spin_button;
g_return_val_if_fail (GAIL_IS_SPIN_BUTTON (obj), FALSE);
spin_button = GAIL_SPIN_BUTTON (obj);
if (spin_button->adjustment == NULL)
/*
* Adjustment has not been specified
*/
return FALSE;
return atk_value_set_current_value (ATK_VALUE (spin_button->adjustment), value);
}
static void
gail_spin_button_finalize (GObject *object)
{
GailSpinButton *spin_button = GAIL_SPIN_BUTTON (object);
if (spin_button->adjustment)
{
g_object_unref (spin_button->adjustment);
spin_button->adjustment = NULL;
}
G_OBJECT_CLASS (gail_spin_button_parent_class)->finalize (object);
}
static void
gail_spin_button_real_notify_gtk (GObject *obj,
GParamSpec *pspec)
{
GtkWidget *widget = GTK_WIDGET (obj);
GailSpinButton *spin_button = GAIL_SPIN_BUTTON (gtk_widget_get_accessible (widget));
if (strcmp (pspec->name, "adjustment") == 0)
{
/*
* Get rid of the GailAdjustment for the GtkAdjustment
* which was associated with the spin_button.
*/
GtkSpinButton* gtk_spin_button;
if (spin_button->adjustment)
{
g_object_unref (spin_button->adjustment);
spin_button->adjustment = NULL;
}
/*
* Create the GailAdjustment when notify for "adjustment" property
* is received
*/
gtk_spin_button = GTK_SPIN_BUTTON (widget);
spin_button->adjustment = gail_adjustment_new (gtk_spin_button->adjustment);
g_signal_connect (gtk_spin_button->adjustment,
"value-changed",
G_CALLBACK (gail_spin_button_value_changed),
spin_button);
}
else
GAIL_WIDGET_CLASS (gail_spin_button_parent_class)->notify_gtk (obj, pspec);
}
static void
gail_spin_button_value_changed (GtkAdjustment *adjustment,
gpointer data)
{
GailSpinButton *spin_button;
gail_return_if_fail (adjustment != NULL);
gail_return_if_fail (data != NULL);
spin_button = GAIL_SPIN_BUTTON (data);
g_object_notify (G_OBJECT (spin_button), "accessible-value");
}
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