diff options
Diffstat (limited to 'eel/eel-accessibility.c')
| -rw-r--r-- | eel/eel-accessibility.c | 266 |
1 files changed, 138 insertions, 128 deletions
diff --git a/eel/eel-accessibility.c b/eel/eel-accessibility.c index 83b88accd..3510fc491 100644 --- a/eel/eel-accessibility.c +++ b/eel/eel-accessibility.c @@ -1,202 +1,212 @@ /* eel-accessibility.h - Utility functions for accessibility - - Copyright (C) 2002 Anders Carlsson, Sun Microsystems, Inc. - - The Eel Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The Eel 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the Eel Library; see the file COPYING.LIB. If not, - see <http://www.gnu.org/licenses/>. - - Authors: - Anders Carlsson <andersca@gnu.org> - Michael Meeks <michael@ximian.com> -*/ + * + * Copyright (C) 2002 Anders Carlsson, Sun Microsystems, Inc. + * + * The Eel Library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * The Eel 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with the Eel Library; see the file COPYING.LIB. If not, + * see <http://www.gnu.org/licenses/>. + * + * Authors: + * Anders Carlsson <andersca@gnu.org> + * Michael Meeks <michael@ximian.com> + */ #include <config.h> #include <gtk/gtk.h> #include <atk/atkrelationset.h> #include <eel/eel-accessibility.h> void -eel_accessibility_set_up_label_widget_relation (GtkWidget *label, GtkWidget *widget) +eel_accessibility_set_up_label_widget_relation (GtkWidget *label, + GtkWidget *widget) { - AtkObject *atk_widget, *atk_label; + AtkObject *atk_widget, *atk_label; - atk_label = gtk_widget_get_accessible (label); - atk_widget = gtk_widget_get_accessible (widget); + atk_label = gtk_widget_get_accessible (label); + atk_widget = gtk_widget_get_accessible (widget); - /* Create the label -> widget relation */ - atk_object_add_relationship (atk_label, ATK_RELATION_LABEL_FOR, atk_widget); + /* Create the label -> widget relation */ + atk_object_add_relationship (atk_label, ATK_RELATION_LABEL_FOR, atk_widget); - /* Create the widget -> label relation */ - atk_object_add_relationship (atk_widget, ATK_RELATION_LABELLED_BY, atk_label); + /* Create the widget -> label relation */ + atk_object_add_relationship (atk_widget, ATK_RELATION_LABELLED_BY, atk_label); } static GQuark get_quark_gobject (void) { - static GQuark quark_accessible_gobject = 0; + static GQuark quark_accessible_gobject = 0; - if (!quark_accessible_gobject) { - quark_accessible_gobject = g_quark_from_static_string - ("object-for-accessible"); - } + if (!quark_accessible_gobject) + { + quark_accessible_gobject = g_quark_from_static_string + ("object-for-accessible"); + } - return quark_accessible_gobject; + return quark_accessible_gobject; } /** * eel_accessibility_get_gobject: * @object: an AtkObject - * + * * gets the GObject associated with the AtkObject, for which * @object provides accessibility support. - * + * * Return value: the accessible's associated GObject **/ gpointer eel_accessibility_get_gobject (AtkObject *object) { - return g_object_get_qdata (G_OBJECT (object), get_quark_gobject ()); + return g_object_get_qdata (G_OBJECT (object), get_quark_gobject ()); } static GailTextUtil * get_simple_text (gpointer object) { - GObject *gobject; - EelAccessibleTextIface *aif; - - if (GTK_IS_ACCESSIBLE (object)) { - gobject = G_OBJECT (gtk_accessible_get_widget (GTK_ACCESSIBLE (object))); - } else { - gobject = eel_accessibility_get_gobject (object); - } - - if (!gobject) { - return NULL; - } - - aif = EEL_ACCESSIBLE_TEXT_GET_IFACE (gobject); - if (!aif) { - g_warning ("No accessible text inferface on '%s'", - g_type_name_from_instance ((gpointer) gobject)); - - } else if (aif->get_text) { - return aif->get_text (gobject); - } - - return NULL; + GObject *gobject; + EelAccessibleTextIface *aif; + + if (GTK_IS_ACCESSIBLE (object)) + { + gobject = G_OBJECT (gtk_accessible_get_widget (GTK_ACCESSIBLE (object))); + } + else + { + gobject = eel_accessibility_get_gobject (object); + } + + if (!gobject) + { + return NULL; + } + + aif = EEL_ACCESSIBLE_TEXT_GET_IFACE (gobject); + if (!aif) + { + g_warning ("No accessible text inferface on '%s'", + g_type_name_from_instance ((gpointer) gobject)); + } + else if (aif->get_text) + { + return aif->get_text (gobject); + } + + return NULL; } char * eel_accessibility_text_get_text (AtkText *text, - gint start_pos, - gint end_pos) + gint start_pos, + gint end_pos) { - GailTextUtil *util = get_simple_text (text); - g_return_val_if_fail (util != NULL, NULL); + GailTextUtil *util = get_simple_text (text); + g_return_val_if_fail (util != NULL, NULL); - return gail_text_util_get_substring (util, start_pos, end_pos); + return gail_text_util_get_substring (util, start_pos, end_pos); } -gunichar +gunichar eel_accessibility_text_get_character_at_offset (AtkText *text, - gint offset) + gint offset) { - char *txt, *index; - gint sucks1 = 0, sucks2 = -1; - gunichar c; - GailTextUtil *util = get_simple_text (text); - g_return_val_if_fail (util != NULL, 0); + char *txt, *index; + gint sucks1 = 0, sucks2 = -1; + gunichar c; + GailTextUtil *util = get_simple_text (text); + g_return_val_if_fail (util != NULL, 0); - txt = gail_text_util_get_substring (util, sucks1, sucks2); + txt = gail_text_util_get_substring (util, sucks1, sucks2); - index = g_utf8_offset_to_pointer (txt, offset); - c = g_utf8_get_char (index); - g_free (txt); + index = g_utf8_offset_to_pointer (txt, offset); + c = g_utf8_get_char (index); + g_free (txt); - return c; + return c; } char * -eel_accessibility_text_get_text_before_offset (AtkText *text, - gint offset, - AtkTextBoundary boundary_type, - gint *start_offset, - gint *end_offset) +eel_accessibility_text_get_text_before_offset (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset) { - GailTextUtil *util = get_simple_text (text); - g_return_val_if_fail (util != NULL, NULL); + GailTextUtil *util = get_simple_text (text); + g_return_val_if_fail (util != NULL, NULL); - return gail_text_util_get_text ( - util, NULL, GAIL_BEFORE_OFFSET, - boundary_type, offset, start_offset, end_offset); + return gail_text_util_get_text ( + util, NULL, GAIL_BEFORE_OFFSET, + boundary_type, offset, start_offset, end_offset); } char * -eel_accessibility_text_get_text_at_offset (AtkText *text, - gint offset, - AtkTextBoundary boundary_type, - gint *start_offset, - gint *end_offset) +eel_accessibility_text_get_text_at_offset (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset) { - GailTextUtil *util = get_simple_text (text); - g_return_val_if_fail (util != NULL, NULL); + GailTextUtil *util = get_simple_text (text); + g_return_val_if_fail (util != NULL, NULL); - return gail_text_util_get_text ( - util, NULL, GAIL_AT_OFFSET, - boundary_type, offset, start_offset, end_offset); + return gail_text_util_get_text ( + util, NULL, GAIL_AT_OFFSET, + boundary_type, offset, start_offset, end_offset); } -gchar* -eel_accessibility_text_get_text_after_offset (AtkText *text, - gint offset, - AtkTextBoundary boundary_type, - gint *start_offset, - gint *end_offset) +gchar * +eel_accessibility_text_get_text_after_offset (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset) { - GailTextUtil *util = get_simple_text (text); - g_return_val_if_fail (util != NULL, NULL); + GailTextUtil *util = get_simple_text (text); + g_return_val_if_fail (util != NULL, NULL); - return gail_text_util_get_text ( - util, NULL, GAIL_AFTER_OFFSET, - boundary_type, offset, start_offset, end_offset); + return gail_text_util_get_text ( + util, NULL, GAIL_AFTER_OFFSET, + boundary_type, offset, start_offset, end_offset); } gint eel_accessibility_text_get_character_count (AtkText *text) { - GailTextUtil *util = get_simple_text (text); - g_return_val_if_fail (util != NULL, -1); + GailTextUtil *util = get_simple_text (text); + g_return_val_if_fail (util != NULL, -1); - return gtk_text_buffer_get_char_count (util->buffer); + return gtk_text_buffer_get_char_count (util->buffer); } GType eel_accessible_text_get_type (void) { - static GType type = 0; - - if (!type) { - const GTypeInfo tinfo = { - sizeof (AtkTextIface), - (GBaseInitFunc) NULL, - (GBaseFinalizeFunc) NULL, - (GClassInitFunc) NULL, - (GClassFinalizeFunc) NULL - }; - - type = g_type_register_static ( - G_TYPE_INTERFACE, "EelAccessibleText", &tinfo, 0); - } - - return type; + static GType type = 0; + + if (!type) + { + const GTypeInfo tinfo = + { + sizeof (AtkTextIface), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) NULL, + (GClassFinalizeFunc) NULL + }; + + type = g_type_register_static ( + G_TYPE_INTERFACE, "EelAccessibleText", &tinfo, 0); + } + + return type; } |