forked from AuroraMiddleware/gtk
828 lines
26 KiB
C
828 lines
26 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 "gailnotebookpage.h"
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#include <libgail-util/gailmisc.h>
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#include "gail-private-macros.h"
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static void gail_notebook_page_class_init (GailNotebookPageClass *klass);
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static void gail_notebook_page_init (GailNotebookPage *page);
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static void gail_notebook_page_finalize (GObject *object);
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static void gail_notebook_page_label_map_gtk (GtkWidget *widget,
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gpointer data);
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static G_CONST_RETURN gchar* gail_notebook_page_get_name (AtkObject *accessible);
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static AtkObject* gail_notebook_page_get_parent (AtkObject *accessible);
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static gint gail_notebook_page_get_n_children (AtkObject *accessible);
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static AtkObject* gail_notebook_page_ref_child (AtkObject *accessible,
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gint i);
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static gint gail_notebook_page_get_index_in_parent
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(AtkObject *accessible);
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static AtkStateSet* gail_notebook_page_ref_state_set (AtkObject *accessible);
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static gint gail_notebook_page_notify (GObject *obj,
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GParamSpec *pspec,
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gpointer user_data);
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static void gail_notebook_page_init_textutil (GailNotebookPage *notebook_page,
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GtkWidget *label);
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static void atk_component_interface_init (AtkComponentIface *iface);
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static AtkObject* gail_notebook_page_ref_accessible_at_point
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(AtkComponent *component,
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gint x,
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gint y,
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AtkCoordType coord_type);
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static void gail_notebook_page_get_extents (AtkComponent *component,
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gint *x,
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gint *y,
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gint *width,
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gint *height,
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AtkCoordType coord_type);
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static AtkObject* _gail_notebook_page_get_tab_label (GailNotebookPage *page);
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/* atktext.h */
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static void atk_text_interface_init (AtkTextIface *iface);
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static gchar* gail_notebook_page_get_text (AtkText *text,
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gint start_pos,
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gint end_pos);
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static gunichar gail_notebook_page_get_character_at_offset
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(AtkText *text,
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gint offset);
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static gchar* gail_notebook_page_get_text_before_offset
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(AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset);
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static gchar* gail_notebook_page_get_text_at_offset
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(AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset);
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static gchar* gail_notebook_page_get_text_after_offset
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(AtkText *text,
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gint offset,
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AtkTextBoundary boundary_type,
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gint *start_offset,
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gint *end_offset);
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static gint gail_notebook_page_get_character_count (AtkText *text);
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static void gail_notebook_page_get_character_extents
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(AtkText *text,
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gint offset,
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gint *x,
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gint *y,
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gint *width,
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gint *height,
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AtkCoordType coords);
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static gint gail_notebook_page_get_offset_at_point
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(AtkText *text,
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gint x,
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gint y,
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AtkCoordType coords);
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static AtkAttributeSet* gail_notebook_page_get_run_attributes
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(AtkText *text,
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gint offset,
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gint *start_offset,
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gint *end_offset);
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static AtkAttributeSet* gail_notebook_page_get_default_attributes
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(AtkText *text);
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static GtkWidget* get_label_from_notebook_page (GailNotebookPage *page);
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static GtkWidget* find_label_child (GtkContainer *container);
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/* FIXME: not GAIL_TYPE_OBJECT? */
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G_DEFINE_TYPE_WITH_CODE (GailNotebookPage, gail_notebook_page, ATK_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init)
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G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init))
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static void
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gail_notebook_page_class_init (GailNotebookPageClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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class->get_name = gail_notebook_page_get_name;
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class->get_parent = gail_notebook_page_get_parent;
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class->get_n_children = gail_notebook_page_get_n_children;
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class->ref_child = gail_notebook_page_ref_child;
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class->ref_state_set = gail_notebook_page_ref_state_set;
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class->get_index_in_parent = gail_notebook_page_get_index_in_parent;
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gobject_class->finalize = gail_notebook_page_finalize;
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}
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static void
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gail_notebook_page_init (GailNotebookPage *page)
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{
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}
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static gint
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notify_child_added (gpointer data)
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{
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GailNotebookPage *page;
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AtkObject *atk_object, *atk_parent;
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g_return_val_if_fail (GAIL_IS_NOTEBOOK_PAGE (data), FALSE);
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page = GAIL_NOTEBOOK_PAGE (data);
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atk_object = ATK_OBJECT (data);
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page->notify_child_added_id = 0;
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/* The widget page->notebook may be deleted before this handler is called */
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if (page->notebook != NULL)
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{
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atk_parent = gtk_widget_get_accessible (GTK_WIDGET (page->notebook));
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atk_object_set_parent (atk_object, atk_parent);
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g_signal_emit_by_name (atk_parent, "children_changed::add", page->index, atk_object, NULL);
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}
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return FALSE;
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}
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AtkObject*
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gail_notebook_page_new (GtkNotebook *notebook,
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gint pagenum)
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{
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GObject *object;
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AtkObject *atk_object;
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GailNotebookPage *page;
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GtkWidget *child;
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GtkWidget *label;
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GList *list;
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g_return_val_if_fail (GTK_IS_NOTEBOOK (notebook), NULL);
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child = gtk_notebook_get_nth_page (notebook, pagenum);
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if (!child)
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return NULL;
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object = g_object_new (GAIL_TYPE_NOTEBOOK_PAGE, NULL);
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g_return_val_if_fail (object != NULL, NULL);
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page = GAIL_NOTEBOOK_PAGE (object);
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page->notebook = notebook;
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g_object_add_weak_pointer (G_OBJECT (page->notebook), (gpointer *)&page->notebook);
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page->index = pagenum;
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list = g_list_nth (notebook->children, pagenum);
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page->page = list->data;
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page->textutil = NULL;
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atk_object = ATK_OBJECT (page);
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atk_object->role = ATK_ROLE_PAGE_TAB;
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atk_object->layer = ATK_LAYER_WIDGET;
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page->notify_child_added_id = gdk_threads_add_idle (notify_child_added, atk_object);
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/*
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* We get notified of changes to the label
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*/
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label = get_label_from_notebook_page (page);
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if (GTK_IS_LABEL (label))
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{
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if (gtk_widget_get_mapped (label))
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gail_notebook_page_init_textutil (page, label);
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else
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g_signal_connect (label,
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"map",
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G_CALLBACK (gail_notebook_page_label_map_gtk),
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page);
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}
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return atk_object;
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}
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static void
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gail_notebook_page_label_map_gtk (GtkWidget *widget,
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gpointer data)
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{
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GailNotebookPage *page;
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page = GAIL_NOTEBOOK_PAGE (data);
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gail_notebook_page_init_textutil (page, widget);
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}
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static void
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gail_notebook_page_init_textutil (GailNotebookPage *page,
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GtkWidget *label)
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{
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const gchar *label_text;
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if (page->textutil == NULL)
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{
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page->textutil = gail_text_util_new ();
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g_signal_connect (label,
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"notify",
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(GCallback) gail_notebook_page_notify,
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page);
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}
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label_text = gtk_label_get_text (GTK_LABEL (label));
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gail_text_util_text_setup (page->textutil, label_text);
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}
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static gint
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gail_notebook_page_notify (GObject *obj,
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GParamSpec *pspec,
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gpointer user_data)
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{
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AtkObject *atk_obj = ATK_OBJECT (user_data);
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GtkLabel *label;
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GailNotebookPage *page;
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if (strcmp (pspec->name, "label") == 0)
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{
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const gchar* label_text;
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label = GTK_LABEL (obj);
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label_text = gtk_label_get_text (label);
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page = GAIL_NOTEBOOK_PAGE (atk_obj);
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gail_text_util_text_setup (page->textutil, label_text);
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if (atk_obj->name == NULL)
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{
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/*
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* The label has changed so notify a change in accessible-name
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*/
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g_object_notify (G_OBJECT (atk_obj), "accessible-name");
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}
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/*
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* The label is the only property which can be changed
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*/
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g_signal_emit_by_name (atk_obj, "visible_data_changed");
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}
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return 1;
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}
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static void
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gail_notebook_page_finalize (GObject *object)
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{
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GailNotebookPage *page = GAIL_NOTEBOOK_PAGE (object);
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if (page->notebook)
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g_object_remove_weak_pointer (G_OBJECT (page->notebook), (gpointer *)&page->notebook);
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if (page->textutil)
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g_object_unref (page->textutil);
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if (page->notify_child_added_id)
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g_source_remove (page->notify_child_added_id);
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G_OBJECT_CLASS (gail_notebook_page_parent_class)->finalize (object);
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}
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static G_CONST_RETURN gchar*
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gail_notebook_page_get_name (AtkObject *accessible)
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{
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g_return_val_if_fail (GAIL_IS_NOTEBOOK_PAGE (accessible), NULL);
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if (accessible->name != NULL)
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return accessible->name;
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else
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{
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GtkWidget *label;
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label = get_label_from_notebook_page (GAIL_NOTEBOOK_PAGE (accessible));
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if (GTK_IS_LABEL (label))
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return gtk_label_get_text (GTK_LABEL (label));
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else
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return NULL;
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}
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}
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static AtkObject*
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gail_notebook_page_get_parent (AtkObject *accessible)
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{
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GailNotebookPage *page;
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g_return_val_if_fail (GAIL_IS_NOTEBOOK_PAGE (accessible), NULL);
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page = GAIL_NOTEBOOK_PAGE (accessible);
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if (!page->notebook)
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return NULL;
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return gtk_widget_get_accessible (GTK_WIDGET (page->notebook));
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}
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static gint
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gail_notebook_page_get_n_children (AtkObject *accessible)
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{
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/* Notebook page has only one child */
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g_return_val_if_fail (GAIL_IS_NOTEBOOK_PAGE (accessible), 0);
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return 1;
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}
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static AtkObject*
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gail_notebook_page_ref_child (AtkObject *accessible,
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gint i)
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{
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GtkWidget *child;
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AtkObject *child_obj;
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GailNotebookPage *page = NULL;
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g_return_val_if_fail (GAIL_IS_NOTEBOOK_PAGE (accessible), NULL);
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if (i != 0)
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return NULL;
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page = GAIL_NOTEBOOK_PAGE (accessible);
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if (!page->notebook)
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return NULL;
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child = gtk_notebook_get_nth_page (page->notebook, page->index);
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gail_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
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child_obj = gtk_widget_get_accessible (child);
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g_object_ref (child_obj);
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return child_obj;
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}
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static gint
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gail_notebook_page_get_index_in_parent (AtkObject *accessible)
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{
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GailNotebookPage *page;
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g_return_val_if_fail (GAIL_IS_NOTEBOOK_PAGE (accessible), -1);
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page = GAIL_NOTEBOOK_PAGE (accessible);
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return page->index;
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}
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static AtkStateSet*
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gail_notebook_page_ref_state_set (AtkObject *accessible)
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{
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AtkStateSet *state_set, *label_state_set, *merged_state_set;
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AtkObject *atk_label;
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g_return_val_if_fail (GAIL_NOTEBOOK_PAGE (accessible), NULL);
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state_set = ATK_OBJECT_CLASS (gail_notebook_page_parent_class)->ref_state_set (accessible);
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atk_label = _gail_notebook_page_get_tab_label (GAIL_NOTEBOOK_PAGE (accessible));
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if (atk_label)
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{
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label_state_set = atk_object_ref_state_set (atk_label);
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merged_state_set = atk_state_set_or_sets (state_set, label_state_set);
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g_object_unref (label_state_set);
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g_object_unref (state_set);
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}
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else
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{
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AtkObject *child;
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child = atk_object_ref_accessible_child (accessible, 0);
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gail_return_val_if_fail (child, state_set);
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merged_state_set = state_set;
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state_set = atk_object_ref_state_set (child);
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if (atk_state_set_contains_state (state_set, ATK_STATE_VISIBLE))
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{
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atk_state_set_add_state (merged_state_set, ATK_STATE_VISIBLE);
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if (atk_state_set_contains_state (state_set, ATK_STATE_ENABLED))
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atk_state_set_add_state (merged_state_set, ATK_STATE_ENABLED);
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if (atk_state_set_contains_state (state_set, ATK_STATE_SHOWING))
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atk_state_set_add_state (merged_state_set, ATK_STATE_SHOWING);
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}
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g_object_unref (state_set);
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g_object_unref (child);
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}
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return merged_state_set;
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}
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static void
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atk_component_interface_init (AtkComponentIface *iface)
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{
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/*
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* We use the default implementations for contains, get_position, get_size
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*/
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iface->ref_accessible_at_point = gail_notebook_page_ref_accessible_at_point;
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iface->get_extents = gail_notebook_page_get_extents;
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}
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static AtkObject*
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gail_notebook_page_ref_accessible_at_point (AtkComponent *component,
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gint x,
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gint y,
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AtkCoordType coord_type)
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{
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/*
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* There is only one child so we return it.
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*/
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AtkObject* child;
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g_return_val_if_fail (ATK_IS_OBJECT (component), NULL);
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child = atk_object_ref_accessible_child (ATK_OBJECT (component), 0);
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return child;
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}
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static void
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gail_notebook_page_get_extents (AtkComponent *component,
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gint *x,
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gint *y,
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gint *width,
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gint *height,
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AtkCoordType coord_type)
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{
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AtkObject *atk_label;
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g_return_if_fail (GAIL_IS_NOTEBOOK_PAGE (component));
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atk_label = _gail_notebook_page_get_tab_label (GAIL_NOTEBOOK_PAGE (component));
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if (!atk_label)
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{
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AtkObject *child;
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*width = 0;
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*height = 0;
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child = atk_object_ref_accessible_child (ATK_OBJECT (component), 0);
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gail_return_if_fail (child);
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atk_component_get_position (ATK_COMPONENT (child), x, y, coord_type);
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g_object_unref (child);
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}
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else
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{
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atk_component_get_extents (ATK_COMPONENT (atk_label),
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x, y, width, height, coord_type);
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}
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return;
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}
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static AtkObject*
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_gail_notebook_page_get_tab_label (GailNotebookPage *page)
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{
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GtkWidget *label;
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label = get_label_from_notebook_page (page);
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if (label)
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return gtk_widget_get_accessible (label);
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else
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return NULL;
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}
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/* atktext.h */
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|
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static void
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atk_text_interface_init (AtkTextIface *iface)
|
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{
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iface->get_text = gail_notebook_page_get_text;
|
|
iface->get_character_at_offset = gail_notebook_page_get_character_at_offset;
|
|
iface->get_text_before_offset = gail_notebook_page_get_text_before_offset;
|
|
iface->get_text_at_offset = gail_notebook_page_get_text_at_offset;
|
|
iface->get_text_after_offset = gail_notebook_page_get_text_after_offset;
|
|
iface->get_character_count = gail_notebook_page_get_character_count;
|
|
iface->get_character_extents = gail_notebook_page_get_character_extents;
|
|
iface->get_offset_at_point = gail_notebook_page_get_offset_at_point;
|
|
iface->get_run_attributes = gail_notebook_page_get_run_attributes;
|
|
iface->get_default_attributes = gail_notebook_page_get_default_attributes;
|
|
}
|
|
|
|
static gchar*
|
|
gail_notebook_page_get_text (AtkText *text,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
const gchar *label_text;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL (label))
|
|
return NULL;
|
|
|
|
if (!notebook_page->textutil)
|
|
gail_notebook_page_init_textutil (notebook_page, label);
|
|
|
|
label_text = gtk_label_get_text (GTK_LABEL (label));
|
|
|
|
if (label_text == NULL)
|
|
return NULL;
|
|
else
|
|
{
|
|
return gail_text_util_get_substring (notebook_page->textutil,
|
|
start_pos, end_pos);
|
|
}
|
|
}
|
|
|
|
static gchar*
|
|
gail_notebook_page_get_text_before_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
if (!notebook_page->textutil)
|
|
gail_notebook_page_init_textutil (notebook_page, label);
|
|
|
|
return gail_text_util_get_text (notebook_page->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)), GAIL_BEFORE_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gchar*
|
|
gail_notebook_page_get_text_at_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
if (!notebook_page->textutil)
|
|
gail_notebook_page_init_textutil (notebook_page, label);
|
|
|
|
return gail_text_util_get_text (notebook_page->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)), GAIL_AT_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gchar*
|
|
gail_notebook_page_get_text_after_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
if (!notebook_page->textutil)
|
|
gail_notebook_page_init_textutil (notebook_page, label);
|
|
|
|
return gail_text_util_get_text (notebook_page->textutil,
|
|
gtk_label_get_layout (GTK_LABEL (label)), GAIL_AFTER_OFFSET,
|
|
boundary_type, offset, start_offset, end_offset);
|
|
}
|
|
|
|
static gint
|
|
gail_notebook_page_get_character_count (AtkText *text)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return 0;
|
|
|
|
return g_utf8_strlen (gtk_label_get_text (GTK_LABEL (label)), -1);
|
|
}
|
|
|
|
static void
|
|
gail_notebook_page_get_character_extents (AtkText *text,
|
|
gint offset,
|
|
gint *x,
|
|
gint *y,
|
|
gint *width,
|
|
gint *height,
|
|
AtkCoordType coords)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
PangoRectangle char_rect;
|
|
gint index, x_layout, y_layout;
|
|
const gchar *label_text;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return;
|
|
|
|
gtk_label_get_layout_offsets (GTK_LABEL (label), &x_layout, &y_layout);
|
|
label_text = gtk_label_get_text (GTK_LABEL (label));
|
|
index = g_utf8_offset_to_pointer (label_text, offset) - label_text;
|
|
pango_layout_index_to_pos (gtk_label_get_layout (GTK_LABEL (label)), index, &char_rect);
|
|
|
|
gail_misc_get_extents_from_pango_rectangle (label, &char_rect,
|
|
x_layout, y_layout, x, y, width, height, coords);
|
|
}
|
|
|
|
static gint
|
|
gail_notebook_page_get_offset_at_point (AtkText *text,
|
|
gint x,
|
|
gint y,
|
|
AtkCoordType coords)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
gint index, x_layout, y_layout;
|
|
const gchar *label_text;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return -1;
|
|
|
|
gtk_label_get_layout_offsets (GTK_LABEL (label), &x_layout, &y_layout);
|
|
|
|
index = gail_misc_get_index_at_point_in_layout (label,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
x_layout, y_layout, x, y, coords);
|
|
label_text = gtk_label_get_text (GTK_LABEL (label));
|
|
if (index == -1)
|
|
{
|
|
if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
|
|
return g_utf8_strlen (label_text, -1);
|
|
|
|
return index;
|
|
}
|
|
else
|
|
return g_utf8_pointer_to_offset (label_text, label_text + index);
|
|
}
|
|
|
|
static AtkAttributeSet*
|
|
gail_notebook_page_get_run_attributes (AtkText *text,
|
|
gint offset,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
AtkAttributeSet *at_set = NULL;
|
|
GtkJustification justify;
|
|
GtkTextDirection dir;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
/* Get values set for entire label, if any */
|
|
justify = gtk_label_get_justify (GTK_LABEL (label));
|
|
if (justify != GTK_JUSTIFY_CENTER)
|
|
{
|
|
at_set = gail_misc_add_attribute (at_set,
|
|
ATK_TEXT_ATTR_JUSTIFICATION,
|
|
g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_JUSTIFICATION, justify)));
|
|
}
|
|
dir = gtk_widget_get_direction (label);
|
|
if (dir == GTK_TEXT_DIR_RTL)
|
|
{
|
|
at_set = gail_misc_add_attribute (at_set,
|
|
ATK_TEXT_ATTR_DIRECTION,
|
|
g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, dir)));
|
|
}
|
|
|
|
at_set = gail_misc_layout_get_run_attributes (at_set,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
(gchar *) gtk_label_get_text (GTK_LABEL (label)),
|
|
offset,
|
|
start_offset,
|
|
end_offset);
|
|
return at_set;
|
|
}
|
|
|
|
static AtkAttributeSet*
|
|
gail_notebook_page_get_default_attributes (AtkText *text)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
AtkAttributeSet *at_set = NULL;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return NULL;
|
|
|
|
at_set = gail_misc_get_default_attributes (at_set,
|
|
gtk_label_get_layout (GTK_LABEL (label)),
|
|
label);
|
|
return at_set;
|
|
}
|
|
|
|
static gunichar
|
|
gail_notebook_page_get_character_at_offset (AtkText *text,
|
|
gint offset)
|
|
{
|
|
GtkWidget *label;
|
|
GailNotebookPage *notebook_page;
|
|
const gchar *string;
|
|
gchar *index;
|
|
|
|
notebook_page = GAIL_NOTEBOOK_PAGE (text);
|
|
label = get_label_from_notebook_page (notebook_page);
|
|
|
|
if (!GTK_IS_LABEL(label))
|
|
return '\0';
|
|
string = gtk_label_get_text (GTK_LABEL (label));
|
|
if (offset >= g_utf8_strlen (string, -1))
|
|
return '\0';
|
|
index = g_utf8_offset_to_pointer (string, offset);
|
|
|
|
return g_utf8_get_char (index);
|
|
}
|
|
|
|
static GtkWidget*
|
|
get_label_from_notebook_page (GailNotebookPage *page)
|
|
{
|
|
GtkWidget *child;
|
|
GtkNotebook *notebook;
|
|
|
|
notebook = page->notebook;
|
|
if (!notebook)
|
|
return NULL;
|
|
|
|
if (!gtk_notebook_get_show_tabs (notebook))
|
|
return NULL;
|
|
|
|
child = gtk_notebook_get_nth_page (notebook, page->index);
|
|
if (child == NULL) return NULL;
|
|
g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
|
|
|
|
child = gtk_notebook_get_tab_label (notebook, child);
|
|
|
|
if (GTK_IS_LABEL (child))
|
|
return child;
|
|
|
|
if (GTK_IS_CONTAINER (child))
|
|
child = find_label_child (GTK_CONTAINER (child));
|
|
|
|
return child;
|
|
}
|
|
|
|
static GtkWidget*
|
|
find_label_child (GtkContainer *container)
|
|
{
|
|
GList *children, *tmp_list;
|
|
GtkWidget *child;
|
|
|
|
children = gtk_container_get_children (container);
|
|
|
|
child = NULL;
|
|
for (tmp_list = children; tmp_list != NULL; tmp_list = tmp_list->next)
|
|
{
|
|
if (GTK_IS_LABEL (tmp_list->data))
|
|
{
|
|
child = GTK_WIDGET (tmp_list->data);
|
|
break;
|
|
}
|
|
else if (GTK_IS_CONTAINER (tmp_list->data))
|
|
{
|
|
child = find_label_child (GTK_CONTAINER (tmp_list->data));
|
|
if (child)
|
|
break;
|
|
}
|
|
}
|
|
g_list_free (children);
|
|
return child;
|
|
}
|