diff options
Diffstat (limited to 'modules/other/gail/gailhtmlboxtext.c')
| -rw-r--r-- | modules/other/gail/gailhtmlboxtext.c | 506 |
1 files changed, 506 insertions, 0 deletions
diff --git a/modules/other/gail/gailhtmlboxtext.c b/modules/other/gail/gailhtmlboxtext.c new file mode 100644 index 000000000..9d2874cbb --- /dev/null +++ b/modules/other/gail/gailhtmlboxtext.c @@ -0,0 +1,506 @@ +/* GAIL - The GNOME Accessibility Implementation Library + * Copyright 2001 Sun Microsystems Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include "gailhtmlboxtext.h" + +static void gail_html_box_text_class_init (GailHtmlBoxTextClass *klass); +static void gail_html_box_text_text_interface_init (AtkTextIface *iface); +static gchar* gail_html_box_text_get_text (AtkText *text, + gint start_offset, + gint end_offset); +static gchar* gail_html_box_text_get_text_after_offset + (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset); +static gchar* gail_html_box_text_get_text_at_offset (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset); +static gchar* gail_html_box_text_get_text_before_offset + (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset); +static gunichar gail_html_box_text_get_character_at_offset + (AtkText *text, + gint offset); +static gint gail_html_box_text_get_character_count (AtkText *text); +static gint gail_html_box_text_get_caret_offset (AtkText *text); +static gboolean gail_html_box_text_set_caret_offset (AtkText *text, + gint offset); +static gint gail_html_box_text_get_offset_at_point (AtkText *text, + gint x, + gint y, + AtkCoordType coords); +static void gail_html_box_text_get_character_extents (AtkText *text, + gint offset, + gint *x, + gint *y, + gint *width, + gint *height, + AtkCoordType coords); +static AtkAttributeSet* + gail_html_box_text_get_run_attributes (AtkText *text, + gint offset, + gint *start_offset, + gint *end_offset); +static AtkAttributeSet* + gail_html_box_text_get_default_attributes (AtkText *text); +static gint gail_html_box_text_get_n_selections (AtkText *text); +static gchar* gail_html_box_text_get_selection (AtkText *text, + gint selection_num, + gint *start_pos, + gint *end_pos); +static gboolean gail_html_box_text_add_selection (AtkText *text, + gint start_pos, + gint end_pos); +static gboolean gail_html_box_text_remove_selection (AtkText *text, + gint selection_num); +static gboolean gail_html_box_text_set_selection (AtkText *text, + gint selection_num, + gint start_pos, + gint end_pos); +static AtkAttributeSet* + add_to_attr_set (AtkAttributeSet *attrib_set, + GtkTextAttributes *attrs, + AtkTextAttribute attr); +static gchar* get_text_near_offset (AtkText *text, + GailOffsetType function, + AtkTextBoundary boundary_type, + gint offset, + gint *start_offset, + gint *end_offset); + +static AtkObjectClass *parent_class = NULL; + +GType +gail_html_box_text_get_type (void) +{ + static GType type = 0; + + if (!type) + { + static const GTypeInfo tinfo = + { + sizeof (GailHtmlBoxTextClass), + (GBaseInitFunc) NULL, /* base init */ + (GBaseFinalizeFunc) NULL, /* base finalize */ + (GClassInitFunc) gail_html_box_text_class_init, /* class init */ + (GClassFinalizeFunc) NULL, /* class finalize */ + NULL, /* class data */ + sizeof (GailHtmlBoxText), /* instance size */ + 0, /* nb preallocs */ + (GInstanceInitFunc) NULL, /* instance init */ + NULL /* value table */ + }; + + static const GInterfaceInfo atk_text_info = + { + (GInterfaceInitFunc) gail_html_box_text_text_interface_init, + (GInterfaceFinalizeFunc) NULL, + NULL + }; + type = g_type_register_static (GAIL_TYPE_HTML_BOX, + "GailHtmlBoxText", &tinfo, 0); + g_type_add_interface_static (type, ATK_TYPE_TEXT, + &atk_text_info); + } + + return type; +} + +AtkObject* +gail_html_box_text_new (GObject *obj) +{ + gpointer object; + AtkObject *atk_object; + GailHtmlBoxText *gail_text; + + g_return_val_if_fail (HTML_IS_BOX_TEXT (obj), NULL); + object = g_object_new (GAIL_TYPE_HTML_BOX_TEXT, NULL); + atk_object = ATK_OBJECT (object); + gail_text = GAIL_HTML_BOX_TEXT (object); + + atk_object_initialize (atk_object, obj); + gail_text->texthelper = gail_text_helper_new (); +#if 0 + gail_text_helper_text_setup (gail_text->texthelper, + HTML_BOX_TEXT (obj)->master->text); +#endif + + atk_object->role = ATK_ROLE_TEXT; + return atk_object; +} + +static void +gail_html_box_text_class_init (GailHtmlBoxTextClass *klass) +{ + parent_class = g_type_class_ref (ATK_TYPE_OBJECT); +} + +static void +gail_html_box_text_text_interface_init (AtkTextIface *iface) +{ + g_return_if_fail (iface != NULL); + + iface->get_text = gail_html_box_text_get_text; + iface->get_text_after_offset = gail_html_box_text_get_text_after_offset; + iface->get_text_at_offset = gail_html_box_text_get_text_at_offset; + iface->get_text_before_offset = gail_html_box_text_get_text_before_offset; + iface->get_character_at_offset = gail_html_box_text_get_character_at_offset; + iface->get_character_count = gail_html_box_text_get_character_count; + iface->get_caret_offset = gail_html_box_text_get_caret_offset; + iface->set_caret_offset = gail_html_box_text_set_caret_offset; + iface->get_offset_at_point = gail_html_box_text_get_offset_at_point; + iface->get_character_extents = gail_html_box_text_get_character_extents; + iface->get_n_selections = gail_html_box_text_get_n_selections; + iface->get_selection = gail_html_box_text_get_selection; + iface->add_selection = gail_html_box_text_add_selection; + iface->remove_selection = gail_html_box_text_remove_selection; + iface->set_selection = gail_html_box_text_set_selection; + iface->get_run_attributes = gail_html_box_text_get_run_attributes; + iface->get_default_attributes = gail_html_box_text_get_default_attributes; +} + +static gchar* +gail_html_box_text_get_text (AtkText *text, + gint start_offset, + gint end_offset) +{ + GailHtmlBoxText *gail_text; + GtkTextBuffer *buffer; + GtkTextIter start, end; + + g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), NULL); + gail_text = GAIL_HTML_BOX_TEXT (text); + g_return_val_if_fail (gail_text->texthelper, NULL); + + buffer = gail_text->texthelper->buffer; + gtk_text_buffer_get_iter_at_offset (buffer, &start, start_offset); + gtk_text_buffer_get_iter_at_offset (buffer, &end, end_offset); + + return gtk_text_buffer_get_text (buffer, &start, &end, FALSE); +} + +static gchar* +gail_html_box_text_get_text_after_offset (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset) +{ + return get_text_near_offset (text, GAIL_AFTER_OFFSET, + boundary_type, offset, + start_offset, end_offset); +} + +static gchar* +gail_html_box_text_get_text_at_offset (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset) +{ + return get_text_near_offset (text, GAIL_AT_OFFSET, + boundary_type, offset, + start_offset, end_offset); +} + +static gchar* +gail_html_box_text_get_text_before_offset (AtkText *text, + gint offset, + AtkTextBoundary boundary_type, + gint *start_offset, + gint *end_offset) +{ + return get_text_near_offset (text, GAIL_BEFORE_OFFSET, + boundary_type, offset, + start_offset, end_offset); +} + +static gunichar +gail_html_box_text_get_character_at_offset (AtkText *text, + gint offset) +{ + GailHtmlBoxText *gail_item; + GtkTextIter start, end; + GtkTextBuffer *buffer; + gchar *string; + gchar *index; + + g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), 0); + gail_item = GAIL_HTML_BOX_TEXT (text); + buffer = gail_item->texthelper->buffer; + gtk_text_buffer_get_start_iter (buffer, &start); + gtk_text_buffer_get_end_iter (buffer, &end); + string = gtk_text_buffer_get_text (buffer, &start, &end, FALSE); + index = g_utf8_offset_to_pointer (string, offset); + g_free (string); + + return g_utf8_get_char (index); +} + +static gint +gail_html_box_text_get_character_count (AtkText *text) +{ + GtkTextBuffer *buffer; + GailHtmlBoxText *gail_text; + + g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), 0); + gail_text = GAIL_HTML_BOX_TEXT (text); + g_return_val_if_fail (gail_text->texthelper, 0); + buffer = gail_text->texthelper->buffer; + return gtk_text_buffer_get_char_count (buffer); +} + +static gint +gail_html_box_text_get_caret_offset (AtkText *text) +{ + GailHtmlBoxText *gail_text; + GtkTextBuffer *buffer; + GtkTextMark *cursor_mark; + GtkTextIter cursor_itr; + + g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), 0); + gail_text = GAIL_HTML_BOX_TEXT (text); + g_return_val_if_fail (gail_text->texthelper, 0); + buffer = gail_text->texthelper->buffer; + cursor_mark = gtk_text_buffer_get_insert (buffer); + gtk_text_buffer_get_iter_at_mark (buffer, &cursor_itr, cursor_mark); + return gtk_text_iter_get_offset (&cursor_itr); +} + +static gboolean +gail_html_box_text_set_caret_offset (AtkText *text, + gint offset) +{ + GailHtmlBoxText *gail_text; + GtkTextBuffer *buffer; + GtkTextIter pos_itr; + + g_return_val_if_fail (GAIL_IS_HTML_BOX_TEXT (text), FALSE); + gail_text = GAIL_HTML_BOX_TEXT (text); + g_return_val_if_fail (gail_text->texthelper, FALSE); + buffer = gail_text->texthelper->buffer; + gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, offset); + gtk_text_buffer_move_mark_by_name (buffer, "insert", &pos_itr); + return TRUE; +} + +static gint +gail_html_box_text_get_offset_at_point (AtkText *text, + gint x, + gint y, + AtkCoordType coords) +{ + return -1; +} + +static void +gail_html_box_text_get_character_extents (AtkText *text, + gint offset, + gint *x, + gint *y, + gint *width, + gint *height, + AtkCoordType coords) +{ + return; +} + +static AtkAttributeSet* +gail_html_box_text_get_run_attributes (AtkText *text, + gint offset, + gint *start_offset, + gint *end_offset) +{ + return NULL; +} + +static AtkAttributeSet* +gail_html_box_text_get_default_attributes (AtkText *text) +{ + return NULL; +} + +static gint +gail_html_box_text_get_n_selections (AtkText *text) +{ + return 0; +} + +static gchar* +gail_html_box_text_get_selection (AtkText *text, + gint selection_num, + gint *start_pos, + gint *end_pos) +{ + return NULL; +} + +static gboolean +gail_html_box_text_add_selection (AtkText *text, + gint start_pos, + gint end_pos) +{ + return FALSE; +} + +static gboolean +gail_html_box_text_remove_selection (AtkText *text, + gint selection_num) +{ + return FALSE; +} + +static gboolean +gail_html_box_text_set_selection (AtkText *text, + gint selection_num, + gint start_pos, + gint end_pos) +{ + return FALSE; +} + +static AtkAttributeSet* +add_to_attr_set (AtkAttributeSet *attrib_set, + GtkTextAttributes *attrs, + AtkTextAttribute attr) +{ + gchar *value; + + switch (attr) + { + case ATK_TEXT_ATTR_LEFT_MARGIN: + value = g_strdup_printf ("%i", attrs->left_margin); + break; + case ATK_TEXT_ATTR_RIGHT_MARGIN: + value = g_strdup_printf ("%i", attrs->right_margin); + break; + case ATK_TEXT_ATTR_INDENT: + value = g_strdup_printf ("%i", attrs->indent); + break; + case ATK_TEXT_ATTR_INVISIBLE: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->invisible)); + break; + case ATK_TEXT_ATTR_EDITABLE: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->editable)); + break; + case ATK_TEXT_ATTR_PIXELS_ABOVE_LINES: + value = g_strdup_printf ("%i", attrs->pixels_above_lines); + break; + case ATK_TEXT_ATTR_PIXELS_BELOW_LINES: + value = g_strdup_printf ("%i", attrs->pixels_below_lines); + break; + case ATK_TEXT_ATTR_PIXELS_INSIDE_WRAP: + value = g_strdup_printf ("%i", attrs->pixels_inside_wrap); + break; + case ATK_TEXT_ATTR_BG_FULL_HEIGHT: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->bg_full_height)); + break; + case ATK_TEXT_ATTR_RISE: + value = g_strdup_printf ("%i", attrs->appearance.rise); + break; + case ATK_TEXT_ATTR_UNDERLINE: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->appearance.underline)); + break; + case ATK_TEXT_ATTR_STRIKETHROUGH: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->appearance.strikethrough)); + break; + case ATK_TEXT_ATTR_SIZE: + value = g_strdup_printf ("%i", + pango_font_description_get_size (attrs->font)); + break; + case ATK_TEXT_ATTR_SCALE: + value = g_strdup_printf ("%g", attrs->font_scale); + break; + case ATK_TEXT_ATTR_WEIGHT: + value = g_strdup_printf ("%d", + pango_font_description_get_weight (attrs->font)); + break; + case ATK_TEXT_ATTR_LANGUAGE: + value = g_strdup ((gchar *)(attrs->language)); + break; + case ATK_TEXT_ATTR_FAMILY_NAME: + value = g_strdup (pango_font_description_get_family (attrs->font)); + break; + case ATK_TEXT_ATTR_BG_COLOR: + value = g_strdup_printf ("%u,%u,%u", + attrs->appearance.bg_color.red, + attrs->appearance.bg_color.green, + attrs->appearance.bg_color.blue); + break; + case ATK_TEXT_ATTR_FG_COLOR: + value = g_strdup_printf ("%u,%u,%u", + attrs->appearance.fg_color.red, + attrs->appearance.fg_color.green, + attrs->appearance.fg_color.blue); + break; + case ATK_TEXT_ATTR_BG_STIPPLE: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->appearance.bg_stipple ? 1 : 0)); + break; + case ATK_TEXT_ATTR_FG_STIPPLE: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->appearance.fg_stipple ? 1 : 0)); + break; + case ATK_TEXT_ATTR_WRAP_MODE: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->wrap_mode)); + break; + case ATK_TEXT_ATTR_DIRECTION: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->direction)); + break; + case ATK_TEXT_ATTR_JUSTIFICATION: + value = g_strdup (atk_text_attribute_get_value (attr, attrs->justification)); + break; + case ATK_TEXT_ATTR_STRETCH: + value = g_strdup (atk_text_attribute_get_value (attr, + pango_font_description_get_stretch (attrs->font))); + break; + case ATK_TEXT_ATTR_VARIANT: + value = g_strdup (atk_text_attribute_get_value (attr, + pango_font_description_get_variant (attrs->font))); + break; + case ATK_TEXT_ATTR_STYLE: + value = g_strdup (atk_text_attribute_get_value (attr, + pango_font_description_get_style (attrs->font))); + break; + default: + value = NULL; + break; + } + return gail_text_helper_add_attribute (attrib_set, + attr, + value); +} + +static gchar* +get_text_near_offset (AtkText *text, + GailOffsetType function, + AtkTextBoundary boundary_type, + gint offset, + gint *start_offset, + gint *end_offset) +{ + return gail_text_helper_get_text (GAIL_HTML_BOX_TEXT (text)->texthelper, NULL, + function, boundary_type, offset, + start_offset, end_offset); +} |