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114 lines
2.8 KiB
C
114 lines
2.8 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 2001 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 <gtk/gtk.h>
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#include "gailscrollbar.h"
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static void gail_scrollbar_class_init (GailScrollbarClass *klass);
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static void gail_scrollbar_init (GailScrollbar *accessible);
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static gint gail_scrollbar_get_index_in_parent (AtkObject *accessible);
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G_DEFINE_TYPE (GailScrollbar, gail_scrollbar, GAIL_TYPE_RANGE)
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static void
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gail_scrollbar_class_init (GailScrollbarClass *klass)
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{
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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class->get_index_in_parent = gail_scrollbar_get_index_in_parent;
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}
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static void
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gail_scrollbar_init (GailScrollbar *accessible)
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{
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}
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AtkObject*
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gail_scrollbar_new (GtkWidget *widget)
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{
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GObject *object;
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AtkObject *accessible;
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g_return_val_if_fail (GTK_IS_SCROLLBAR (widget), NULL);
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object = g_object_new (GAIL_TYPE_SCROLLBAR, NULL);
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accessible = ATK_OBJECT (object);
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atk_object_initialize (accessible, widget);
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accessible->role = ATK_ROLE_SCROLL_BAR;
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return accessible;
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}
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static gint
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gail_scrollbar_get_index_in_parent (AtkObject *accessible)
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{
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GtkWidget *widget;
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GtkScrolledWindow *scrolled_window;
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gint n_children;
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GList *children;
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widget = GTK_ACCESSIBLE (accessible)->widget;
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if (widget == NULL)
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{
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/*
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* State is defunct
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*/
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return -1;
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}
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g_return_val_if_fail (GTK_IS_SCROLLBAR (widget), -1);
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if (!GTK_IS_SCROLLED_WINDOW(widget->parent))
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return ATK_OBJECT_CLASS (gail_scrollbar_parent_class)->get_index_in_parent (accessible);
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scrolled_window = GTK_SCROLLED_WINDOW (widget->parent);
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children = gtk_container_get_children (GTK_CONTAINER (scrolled_window));
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n_children = g_list_length (children);
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g_list_free (children);
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if (GTK_IS_HSCROLLBAR (widget))
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{
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if (!scrolled_window->hscrollbar_visible)
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{
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n_children = -1;
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}
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}
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else if (GTK_IS_VSCROLLBAR (widget))
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{
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if (!scrolled_window->vscrollbar_visible)
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{
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n_children = -1;
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}
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else if (scrolled_window->hscrollbar_visible)
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{
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n_children++;
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}
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}
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else
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{
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n_children = -1;
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}
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return n_children;
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}
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