forked from AuroraMiddleware/gtk
f54cc70238
This was a fairly trivial wrapper around GtkAdjustment with no particularly important reason for existence.
199 lines
6.1 KiB
C
199 lines
6.1 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include "gtkspinbuttonaccessible.h"
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static void atk_value_interface_init (AtkValueIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkSpinButtonAccessible, gtk_spin_button_accessible, GTK_TYPE_ENTRY_ACCESSIBLE,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))
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static void
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gtk_spin_button_accessible_value_changed (GtkAdjustment *adjustment,
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gpointer data)
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{
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GtkSpinButtonAccessible *spin_button;
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if (adjustment == NULL || data == NULL)
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return;
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spin_button = GTK_SPIN_BUTTON_ACCESSIBLE (data);
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g_object_notify (G_OBJECT (spin_button), "accessible-value");
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}
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static void
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gtk_spin_button_accessible_initialize (AtkObject *obj,
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gpointer data)
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{
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GtkAdjustment *adjustment;
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ATK_OBJECT_CLASS (gtk_spin_button_accessible_parent_class)->initialize (obj, data);
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adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (data));
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if (adjustment)
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g_signal_connect (adjustment,
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"value-changed",
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G_CALLBACK (gtk_spin_button_accessible_value_changed),
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obj);
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obj->role = ATK_ROLE_SPIN_BUTTON;
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}
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static void
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gtk_spin_button_accessible_notify_gtk (GObject *obj,
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GParamSpec *pspec)
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{
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GtkWidget *widget = GTK_WIDGET (obj);
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GtkSpinButtonAccessible *spin_button = GTK_SPIN_BUTTON_ACCESSIBLE (gtk_widget_get_accessible (widget));
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if (strcmp (pspec->name, "adjustment") == 0)
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{
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GtkAdjustment* adjustment;
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adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
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g_signal_connect (adjustment,
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"value-changed",
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G_CALLBACK (gtk_spin_button_accessible_value_changed),
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spin_button);
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}
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else
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GAIL_WIDGET_CLASS (gtk_spin_button_accessible_parent_class)->notify_gtk (obj, pspec);
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}
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static void
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gtk_spin_button_accessible_class_init (GtkSpinButtonAccessibleClass *klass)
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{
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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GailWidgetClass *widget_class;
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widget_class = (GailWidgetClass*)klass;
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widget_class->notify_gtk = gtk_spin_button_accessible_notify_gtk;
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class->initialize = gtk_spin_button_accessible_initialize;
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}
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static void
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gtk_spin_button_accessible_init (GtkSpinButtonAccessible *button)
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{
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}
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static void
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gtk_spin_button_accessible_get_current_value (AtkValue *obj,
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GValue *value)
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{
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GtkWidget *widget;
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GtkAdjustment *adjustment;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
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if (adjustment == NULL)
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return;
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memset (value, 0, sizeof (GValue));
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g_value_init (value, G_TYPE_DOUBLE);
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g_value_set_double (value, gtk_adjustment_get_value (adjustment));
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}
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static void
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gtk_spin_button_accessible_get_maximum_value (AtkValue *obj,
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GValue *value)
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{
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GtkWidget *widget;
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GtkAdjustment *adjustment;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
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if (adjustment == NULL)
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return;
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memset (value, 0, sizeof (GValue));
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g_value_init (value, G_TYPE_DOUBLE);
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g_value_set_double (value, gtk_adjustment_get_upper (adjustment));
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}
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static void
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gtk_spin_button_accessible_get_minimum_value (AtkValue *obj,
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GValue *value)
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{
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GtkWidget *widget;
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GtkAdjustment *adjustment;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
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if (adjustment == NULL)
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return;
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memset (value, 0, sizeof (GValue));
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g_value_init (value, G_TYPE_DOUBLE);
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g_value_set_double (value, gtk_adjustment_get_lower (adjustment));
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}
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static void
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gtk_spin_button_accessible_get_minimum_increment (AtkValue *obj,
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GValue *value)
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{
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GtkWidget *widget;
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GtkAdjustment *adjustment;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
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if (adjustment == NULL)
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return;
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memset (value, 0, sizeof (GValue));
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g_value_init (value, G_TYPE_DOUBLE);
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g_value_set_double (value, gtk_adjustment_get_minimum_increment (adjustment));
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}
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static gboolean
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gtk_spin_button_accessible_set_current_value (AtkValue *obj,
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const GValue *value)
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{
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GtkWidget *widget;
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GtkAdjustment *adjustment;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
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if (adjustment == NULL)
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return FALSE;
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gtk_adjustment_set_value (adjustment, g_value_get_double (value));
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return TRUE;
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}
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static void
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atk_value_interface_init (AtkValueIface *iface)
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{
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iface->get_current_value = gtk_spin_button_accessible_get_current_value;
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iface->get_maximum_value = gtk_spin_button_accessible_get_maximum_value;
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iface->get_minimum_value = gtk_spin_button_accessible_get_minimum_value;
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iface->get_minimum_increment = gtk_spin_button_accessible_get_minimum_increment;
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iface->set_current_value = gtk_spin_button_accessible_set_current_value;
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}
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