forked from AuroraMiddleware/gtk
471 lines
20 KiB
C
471 lines
20 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 "gailhtmlboxtext.h"
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static void gail_html_box_text_class_init (GailHtmlBoxTextClass *klass);
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static void gail_html_box_text_text_interface_init (AtkTextIface *iface);
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static gchar* gail_html_box_text_get_text (AtkText *text,
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gint start_offset,
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gint end_offset);
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static gchar* gail_html_box_text_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 gchar* gail_html_box_text_get_text_at_offset (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_html_box_text_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 gunichar gail_html_box_text_get_character_at_offset
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(AtkText *text,
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gint offset);
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static gint gail_html_box_text_get_character_count (AtkText *text);
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static gint gail_html_box_text_get_caret_offset (AtkText *text);
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static gboolean gail_html_box_text_set_caret_offset (AtkText *text,
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gint offset);
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static gint gail_html_box_text_get_offset_at_point (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 void gail_html_box_text_get_character_extents (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 AtkAttributeSet*
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gail_html_box_text_get_run_attributes (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*
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gail_html_box_text_get_default_attributes (AtkText *text);
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static gint gail_html_box_text_get_n_selections (AtkText *text);
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static gchar* gail_html_box_text_get_selection (AtkText *text,
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gint selection_num,
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gint *start_pos,
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gint *end_pos);
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static gboolean gail_html_box_text_add_selection (AtkText *text,
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gint start_pos,
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gint end_pos);
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static gboolean gail_html_box_text_remove_selection (AtkText *text,
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gint selection_num);
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static gboolean gail_html_box_text_set_selection (AtkText *text,
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gint selection_num,
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gint start_pos,
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gint end_pos);
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static AtkAttributeSet*
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add_to_attr_set (AtkAttributeSet *attrib_set,
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GtkTextAttributes *attrs,
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AtkTextAttribute attr);
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static gchar* get_text_near_offset (AtkText *text,
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GailOffsetType function,
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AtkTextBoundary boundary_type,
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gint offset,
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gint *start_offset,
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gint *end_offset);
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G_DEFINE_TYPE_WITH_CODE (GailHtmlBoxText, gail_html_box_text, GAIL_TYPE_HTML_BOX,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, gail_html_box_text_text_interface_init))
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AtkObject*
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gail_html_box_text_new (GObject *obj)
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{
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gpointer object;
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AtkObject *atk_object;
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GailHtmlBoxText *gail_text;
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g_return_val_if_fail (HTML_IS_BOX_TEXT (obj), NULL);
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object = g_object_new (GAIL_TYPE_HTML_BOX_TEXT, NULL);
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atk_object = ATK_OBJECT (object);
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gail_text = GAIL_HTML_BOX_TEXT (object);
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atk_object_initialize (atk_object, obj);
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gail_text->texthelper = gail_text_helper_new ();
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#if 0
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gail_text_helper_text_setup (gail_text->texthelper,
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HTML_BOX_TEXT (obj)->master->text);
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#endif
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atk_object->role = ATK_ROLE_TEXT;
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return atk_object;
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}
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static void
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gail_html_box_text_class_init (GailHtmlBoxTextClass *klass)
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{
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}
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static void
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gail_html_box_text_text_interface_init (AtkTextIface *iface)
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{
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iface->get_text = gail_html_box_text_get_text;
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iface->get_text_after_offset = gail_html_box_text_get_text_after_offset;
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iface->get_text_at_offset = gail_html_box_text_get_text_at_offset;
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iface->get_text_before_offset = gail_html_box_text_get_text_before_offset;
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iface->get_character_at_offset = gail_html_box_text_get_character_at_offset;
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iface->get_character_count = gail_html_box_text_get_character_count;
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iface->get_caret_offset = gail_html_box_text_get_caret_offset;
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iface->set_caret_offset = gail_html_box_text_set_caret_offset;
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iface->get_offset_at_point = gail_html_box_text_get_offset_at_point;
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iface->get_character_extents = gail_html_box_text_get_character_extents;
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iface->get_n_selections = gail_html_box_text_get_n_selections;
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iface->get_selection = gail_html_box_text_get_selection;
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iface->add_selection = gail_html_box_text_add_selection;
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iface->remove_selection = gail_html_box_text_remove_selection;
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iface->set_selection = gail_html_box_text_set_selection;
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iface->get_run_attributes = gail_html_box_text_get_run_attributes;
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iface->get_default_attributes = gail_html_box_text_get_default_attributes;
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}
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static gchar*
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gail_html_box_text_get_text (AtkText *text,
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gint start_offset,
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gint end_offset)
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{
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GailHtmlBoxText *gail_text;
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GtkTextBuffer *buffer;
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GtkTextIter start, end;
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g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), NULL);
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gail_text = GAIL_HTML_BOX_TEXT (text);
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g_return_val_if_fail (gail_text->texthelper, NULL);
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buffer = gail_text->texthelper->buffer;
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gtk_text_buffer_get_iter_at_offset (buffer, &start, start_offset);
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gtk_text_buffer_get_iter_at_offset (buffer, &end, end_offset);
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return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
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}
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static gchar*
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gail_html_box_text_get_text_after_offset (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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{
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return get_text_near_offset (text, GAIL_AFTER_OFFSET,
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boundary_type, offset,
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start_offset, end_offset);
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}
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static gchar*
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gail_html_box_text_get_text_at_offset (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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{
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return get_text_near_offset (text, GAIL_AT_OFFSET,
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boundary_type, offset,
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start_offset, end_offset);
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}
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static gchar*
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gail_html_box_text_get_text_before_offset (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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{
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return get_text_near_offset (text, GAIL_BEFORE_OFFSET,
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boundary_type, offset,
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start_offset, end_offset);
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}
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static gunichar
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gail_html_box_text_get_character_at_offset (AtkText *text,
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gint offset)
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{
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GailHtmlBoxText *gail_item;
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GtkTextIter start, end;
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GtkTextBuffer *buffer;
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gchar *string;
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gchar *index;
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g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), 0);
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gail_item = GAIL_HTML_BOX_TEXT (text);
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buffer = gail_item->texthelper->buffer;
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gtk_text_buffer_get_start_iter (buffer, &start);
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gtk_text_buffer_get_end_iter (buffer, &end);
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string = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
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index = g_utf8_offset_to_pointer (string, offset);
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g_free (string);
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return g_utf8_get_char (index);
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}
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static gint
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gail_html_box_text_get_character_count (AtkText *text)
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{
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GtkTextBuffer *buffer;
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GailHtmlBoxText *gail_text;
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g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), 0);
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gail_text = GAIL_HTML_BOX_TEXT (text);
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g_return_val_if_fail (gail_text->texthelper, 0);
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buffer = gail_text->texthelper->buffer;
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return gtk_text_buffer_get_char_count (buffer);
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}
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static gint
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gail_html_box_text_get_caret_offset (AtkText *text)
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{
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GailHtmlBoxText *gail_text;
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GtkTextBuffer *buffer;
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GtkTextMark *cursor_mark;
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GtkTextIter cursor_itr;
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g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), 0);
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gail_text = GAIL_HTML_BOX_TEXT (text);
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g_return_val_if_fail (gail_text->texthelper, 0);
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buffer = gail_text->texthelper->buffer;
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cursor_mark = gtk_text_buffer_get_insert (buffer);
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gtk_text_buffer_get_iter_at_mark (buffer, &cursor_itr, cursor_mark);
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return gtk_text_iter_get_offset (&cursor_itr);
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}
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static gboolean
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gail_html_box_text_set_caret_offset (AtkText *text,
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gint offset)
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{
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GailHtmlBoxText *gail_text;
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GtkTextBuffer *buffer;
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GtkTextIter pos_itr;
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g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), FALSE);
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gail_text = GAIL_HTML_BOX_TEXT (text);
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g_return_val_if_fail (gail_text->texthelper, FALSE);
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buffer = gail_text->texthelper->buffer;
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gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, offset);
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gtk_text_buffer_move_mark_by_name (buffer, "insert", &pos_itr);
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return TRUE;
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}
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static gint
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gail_html_box_text_get_offset_at_point (AtkText *text,
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gint x,
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gint y,
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AtkCoordType coords)
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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_html_box_text_get_character_extents (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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{
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return;
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}
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static AtkAttributeSet*
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gail_html_box_text_get_run_attributes (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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{
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return NULL;
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}
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static AtkAttributeSet*
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gail_html_box_text_get_default_attributes (AtkText *text)
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{
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return NULL;
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}
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static gint
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gail_html_box_text_get_n_selections (AtkText *text)
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{
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return 0;
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}
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static gchar*
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gail_html_box_text_get_selection (AtkText *text,
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gint selection_num,
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gint *start_pos,
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gint *end_pos)
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{
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return NULL;
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}
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static gboolean
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gail_html_box_text_add_selection (AtkText *text,
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gint start_pos,
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gint end_pos)
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{
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return FALSE;
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}
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static gboolean
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gail_html_box_text_remove_selection (AtkText *text,
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gint selection_num)
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{
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return FALSE;
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}
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static gboolean
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gail_html_box_text_set_selection (AtkText *text,
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gint selection_num,
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gint start_pos,
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gint end_pos)
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{
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return FALSE;
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}
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static AtkAttributeSet*
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add_to_attr_set (AtkAttributeSet *attrib_set,
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GtkTextAttributes *attrs,
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AtkTextAttribute attr)
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{
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gchar *value;
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switch (attr)
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{
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case ATK_TEXT_ATTR_LEFT_MARGIN:
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value = g_strdup_printf ("%i", attrs->left_margin);
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break;
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case ATK_TEXT_ATTR_RIGHT_MARGIN:
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value = g_strdup_printf ("%i", attrs->right_margin);
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break;
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case ATK_TEXT_ATTR_INDENT:
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value = g_strdup_printf ("%i", attrs->indent);
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break;
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case ATK_TEXT_ATTR_INVISIBLE:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->invisible));
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break;
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case ATK_TEXT_ATTR_EDITABLE:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->editable));
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break;
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case ATK_TEXT_ATTR_PIXELS_ABOVE_LINES:
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value = g_strdup_printf ("%i", attrs->pixels_above_lines);
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break;
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case ATK_TEXT_ATTR_PIXELS_BELOW_LINES:
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value = g_strdup_printf ("%i", attrs->pixels_below_lines);
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break;
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case ATK_TEXT_ATTR_PIXELS_INSIDE_WRAP:
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value = g_strdup_printf ("%i", attrs->pixels_inside_wrap);
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break;
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case ATK_TEXT_ATTR_BG_FULL_HEIGHT:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->bg_full_height));
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break;
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case ATK_TEXT_ATTR_RISE:
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value = g_strdup_printf ("%i", attrs->appearance.rise);
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break;
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case ATK_TEXT_ATTR_UNDERLINE:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->appearance.underline));
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break;
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case ATK_TEXT_ATTR_STRIKETHROUGH:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->appearance.strikethrough));
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break;
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case ATK_TEXT_ATTR_SIZE:
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value = g_strdup_printf ("%i",
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pango_font_description_get_size (attrs->font));
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break;
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case ATK_TEXT_ATTR_SCALE:
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value = g_strdup_printf ("%g", attrs->font_scale);
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break;
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case ATK_TEXT_ATTR_WEIGHT:
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value = g_strdup_printf ("%d",
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pango_font_description_get_weight (attrs->font));
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break;
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case ATK_TEXT_ATTR_LANGUAGE:
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value = g_strdup ((gchar *)(attrs->language));
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break;
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case ATK_TEXT_ATTR_FAMILY_NAME:
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value = g_strdup (pango_font_description_get_family (attrs->font));
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break;
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case ATK_TEXT_ATTR_BG_COLOR:
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value = g_strdup_printf ("%u,%u,%u",
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attrs->appearance.bg_color.red,
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attrs->appearance.bg_color.green,
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attrs->appearance.bg_color.blue);
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break;
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case ATK_TEXT_ATTR_FG_COLOR:
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value = g_strdup_printf ("%u,%u,%u",
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attrs->appearance.fg_color.red,
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attrs->appearance.fg_color.green,
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attrs->appearance.fg_color.blue);
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break;
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case ATK_TEXT_ATTR_BG_STIPPLE:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->appearance.bg_stipple ? 1 : 0));
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break;
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case ATK_TEXT_ATTR_FG_STIPPLE:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->appearance.fg_stipple ? 1 : 0));
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break;
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case ATK_TEXT_ATTR_WRAP_MODE:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->wrap_mode));
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break;
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case ATK_TEXT_ATTR_DIRECTION:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->direction));
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break;
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case ATK_TEXT_ATTR_JUSTIFICATION:
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value = g_strdup (atk_text_attribute_get_value (attr, attrs->justification));
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break;
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case ATK_TEXT_ATTR_STRETCH:
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value = g_strdup (atk_text_attribute_get_value (attr,
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pango_font_description_get_stretch (attrs->font)));
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break;
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case ATK_TEXT_ATTR_VARIANT:
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value = g_strdup (atk_text_attribute_get_value (attr,
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pango_font_description_get_variant (attrs->font)));
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break;
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case ATK_TEXT_ATTR_STYLE:
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value = g_strdup (atk_text_attribute_get_value (attr,
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pango_font_description_get_style (attrs->font)));
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break;
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default:
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value = NULL;
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break;
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}
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return gail_text_helper_add_attribute (attrib_set,
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attr,
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value);
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}
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static gchar*
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get_text_near_offset (AtkText *text,
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GailOffsetType function,
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AtkTextBoundary boundary_type,
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gint offset,
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gint *start_offset,
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gint *end_offset)
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{
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return gail_text_helper_get_text (GAIL_HTML_BOX_TEXT (text)->texthelper, NULL,
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function, boundary_type, offset,
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start_offset, end_offset);
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}
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