+++ /dev/null
-/* 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 Library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "config.h"
-
-#include <math.h>
-#include <stdlib.h>
-#include <gtk/gtk.h>
-#include "gailmisc.h"
-
-/* IMPORTANT!!! This source file does NOT contain the implementation
- * code for AtkUtil - for that code, please see gail/gail.c.
- */
-
-/**
- * SECTION:gailmisc
- * @Short_description: GailMisc is a set of utility functions which may be
- * useful to implementors of Atk interfaces for custom widgets.
- * @Title: GailMisc
- *
- * GailMisc is a set of utility function which are used in the implemementation
- * of Atk interfaces for GTK+ widgets. They may be useful to implementors of
- * Atk interfaces for custom widgets.
- */
-
-
-/**
- * gail_misc_get_extents_from_pango_rectangle:
- * @widget: The widget that contains the PangoLayout, that contains
- * the PangoRectangle
- * @char_rect: The #PangoRectangle from which to calculate extents
- * @x_layout: The x-offset at which the widget displays the
- * PangoLayout that contains the PangoRectangle, relative to @widget
- * @y_layout: The y-offset at which the widget displays the
- * PangoLayout that contains the PangoRectangle, relative to @widget
- * @x: The x-position of the #PangoRectangle relative to @coords
- * @y: The y-position of the #PangoRectangle relative to @coords
- * @width: The width of the #PangoRectangle
- * @height: The height of the #PangoRectangle
- * @coords: An #AtkCoordType enumeration
- *
- * Gets the extents of @char_rect in device coordinates,
- * relative to either top-level window or screen coordinates as
- * specified by @coords.
- **/
-void
-gail_misc_get_extents_from_pango_rectangle (GtkWidget *widget,
- PangoRectangle *char_rect,
- gint x_layout,
- gint y_layout,
- gint *x,
- gint *y,
- gint *width,
- gint *height,
- AtkCoordType coords)
-{
- gint x_window, y_window, x_toplevel, y_toplevel;
-
- gail_misc_get_origins (widget, &x_window, &y_window,
- &x_toplevel, &y_toplevel);
-
- *x = (char_rect->x / PANGO_SCALE) + x_layout + x_window;
- *y = (char_rect->y / PANGO_SCALE) + y_layout + y_window;
- if (coords == ATK_XY_WINDOW)
- {
- *x -= x_toplevel;
- *y -= y_toplevel;
- }
- else if (coords != ATK_XY_SCREEN)
- {
- *x = 0;
- *y = 0;
- *height = 0;
- *width = 0;
- return;
- }
- *height = char_rect->height / PANGO_SCALE;
- *width = char_rect->width / PANGO_SCALE;
-
- return;
-}
-
-/**
- * gail_misc_get_index_at_point_in_layout:
- * @widget: A #GtkWidget
- * @layout: The #PangoLayout from which to get the index at the
- * specified point.
- * @x_layout: The x-offset at which the widget displays the
- * #PangoLayout, relative to @widget
- * @y_layout: The y-offset at which the widget displays the
- * #PangoLayout, relative to @widget
- * @x: The x-coordinate relative to @coords at which to
- * calculate the index
- * @y: The y-coordinate relative to @coords at which to
- * calculate the index
- * @coords: An #AtkCoordType enumeration
- *
- * Gets the byte offset at the specified @x and @y in a #PangoLayout.
- *
- * Returns: the byte offset at the specified @x and @y in a
- * #PangoLayout
- **/
-gint
-gail_misc_get_index_at_point_in_layout (GtkWidget *widget,
- PangoLayout *layout,
- gint x_layout,
- gint y_layout,
- gint x,
- gint y,
- AtkCoordType coords)
-{
- gint index, x_window, y_window, x_toplevel, y_toplevel;
- gint x_temp, y_temp;
- gboolean ret;
-
- gail_misc_get_origins (widget, &x_window, &y_window,
- &x_toplevel, &y_toplevel);
- x_temp = x - x_layout - x_window;
- y_temp = y - y_layout - y_window;
- if (coords == ATK_XY_WINDOW)
- {
- x_temp += x_toplevel;
- y_temp += y_toplevel;
- }
- else if (coords != ATK_XY_SCREEN)
- return -1;
-
- ret = pango_layout_xy_to_index (layout,
- x_temp * PANGO_SCALE,
- y_temp * PANGO_SCALE,
- &index, NULL);
- if (!ret)
- {
- if (x_temp < 0 || y_temp < 0)
- index = 0;
- else
- index = -1;
- }
- return index;
-}
-
-/**
- * gail_misc_add_attribute:
- * @attrib_set: The #AtkAttributeSet to add the attribute to
- * @attr: The AtkTextAttrribute which identifies the attribute to be added
- * @value: The attribute value
- *
- * Creates an #AtkAttribute from @attr and @value, and adds it
- * to @attrib_set.
- *
- * Returns: A pointer to the new #AtkAttributeSet.
- **/
-AtkAttributeSet*
-gail_misc_add_attribute (AtkAttributeSet *attrib_set,
- AtkTextAttribute attr,
- gchar *value)
-{
- AtkAttributeSet *return_set;
- AtkAttribute *at = g_malloc (sizeof (AtkAttribute));
- at->name = g_strdup (atk_text_attribute_get_name (attr));
- at->value = value;
- return_set = g_slist_prepend(attrib_set, at);
- return return_set;
-}
-
-/**
- * gail_misc_layout_get_run_attributes:
- * @attrib_set: The #AtkAttributeSet to add the attribute to
- * @layout: The PangoLayout from which the attributes will be obtained
- * @text: The text
- * @offset: The offset at which the attributes are required
- * @start_offset: The start offset of the current run
- * @end_offset: The end offset of the current run
- *
- * Adds the attributes for the run starting at offset to the specified
- * attribute set.
- *
- * Returns: A pointer to the #AtkAttributeSet.
- **/
-AtkAttributeSet*
-gail_misc_layout_get_run_attributes (AtkAttributeSet *attrib_set,
- PangoLayout *layout,
- const gchar *text,
- gint offset,
- gint *start_offset,
- gint *end_offset)
-{
- PangoAttrIterator *iter;
- PangoAttrList *attr;
- PangoAttrString *pango_string;
- PangoAttrInt *pango_int;
- PangoAttrColor *pango_color;
- PangoAttrLanguage *pango_lang;
- PangoAttrFloat *pango_float;
- gint index, start_index, end_index;
- gboolean is_next = TRUE;
- gchar *value = NULL;
- glong len;
-
- len = g_utf8_strlen (text, -1);
- /* Grab the attributes of the PangoLayout, if any */
- if ((attr = pango_layout_get_attributes (layout)) == NULL)
- {
- *start_offset = 0;
- *end_offset = len;
- return attrib_set;
- }
- iter = pango_attr_list_get_iterator (attr);
- /* Get invariant range offsets */
- /* If offset out of range, set offset in range */
- if (offset > len)
- offset = len;
- else if (offset < 0)
- offset = 0;
-
- index = g_utf8_offset_to_pointer (text, offset) - text;
- pango_attr_iterator_range (iter, &start_index, &end_index);
- while (is_next)
- {
- if (index >= start_index && index < end_index)
- {
- *start_offset = g_utf8_pointer_to_offset (text,
- text + start_index);
- if (end_index == G_MAXINT)
- /* Last iterator */
- end_index = len;
-
- *end_offset = g_utf8_pointer_to_offset (text,
- text + end_index);
- break;
- }
- is_next = pango_attr_iterator_next (iter);
- pango_attr_iterator_range (iter, &start_index, &end_index);
- }
- /* Get attributes */
- if ((pango_string = (PangoAttrString*) pango_attr_iterator_get (iter,
- PANGO_ATTR_FAMILY)) != NULL)
- {
- value = g_strdup_printf("%s", pango_string->value);
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_FAMILY_NAME,
- value);
- }
- if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter,
- PANGO_ATTR_STYLE)) != NULL)
- {
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_STYLE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STYLE, pango_int->value)));
- }
- if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter,
- PANGO_ATTR_WEIGHT)) != NULL)
- {
- value = g_strdup_printf("%i", pango_int->value);
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_WEIGHT,
- value);
- }
- if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter,
- PANGO_ATTR_VARIANT)) != NULL)
- {
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_VARIANT,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_VARIANT, pango_int->value)));
- }
- if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter,
- PANGO_ATTR_STRETCH)) != NULL)
- {
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_STRETCH,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STRETCH, pango_int->value)));
- }
- if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter,
- PANGO_ATTR_SIZE)) != NULL)
- {
- value = g_strdup_printf("%i", pango_int->value / PANGO_SCALE);
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_SIZE,
- value);
- }
- if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter,
- PANGO_ATTR_UNDERLINE)) != NULL)
- {
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_UNDERLINE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_UNDERLINE, pango_int->value)));
- }
- if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter,
- PANGO_ATTR_STRIKETHROUGH)) != NULL)
- {
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_STRIKETHROUGH,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STRIKETHROUGH, pango_int->value)));
- }
- if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter,
- PANGO_ATTR_RISE)) != NULL)
- {
- value = g_strdup_printf("%i", pango_int->value);
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_RISE,
- value);
- }
- if ((pango_lang = (PangoAttrLanguage*) pango_attr_iterator_get (iter,
- PANGO_ATTR_LANGUAGE)) != NULL)
- {
- value = g_strdup( pango_language_to_string( pango_lang->value));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_LANGUAGE,
- value);
- }
- if ((pango_float = (PangoAttrFloat*) pango_attr_iterator_get (iter,
- PANGO_ATTR_SCALE)) != NULL)
- {
- value = g_strdup_printf("%g", pango_float->value);
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_SCALE,
- value);
- }
- if ((pango_color = (PangoAttrColor*) pango_attr_iterator_get (iter,
- PANGO_ATTR_FOREGROUND)) != NULL)
- {
- value = g_strdup_printf ("%u,%u,%u",
- pango_color->color.red,
- pango_color->color.green,
- pango_color->color.blue);
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_FG_COLOR,
- value);
- }
- if ((pango_color = (PangoAttrColor*) pango_attr_iterator_get (iter,
- PANGO_ATTR_BACKGROUND)) != NULL)
- {
- value = g_strdup_printf ("%u,%u,%u",
- pango_color->color.red,
- pango_color->color.green,
- pango_color->color.blue);
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_BG_COLOR,
- value);
- }
- pango_attr_iterator_destroy (iter);
- return attrib_set;
-}
-
-/**
- * gail_misc_get_default_attributes:
- * @attrib_set: The #AtkAttributeSet to add the attribute to
- * @layout: The PangoLayout from which the attributes will be obtained
- * @widget: The GtkWidget for which the default attributes are required.
- *
- * Adds the default attributes to the specified attribute set.
- *
- * Returns: A pointer to the #AtkAttributeSet.
- **/
-AtkAttributeSet*
-gail_misc_get_default_attributes (AtkAttributeSet *attrib_set,
- PangoLayout *layout,
- GtkWidget *widget)
-{
- PangoContext *context;
- GtkStyleContext *style_context;
- gint int_value;
- PangoWrapMode mode;
- GdkRGBA color;
- gchar *value;
-
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_DIRECTION,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION,
- gtk_widget_get_direction (widget))));
-
- context = pango_layout_get_context (layout);
- if (context)
- {
- PangoLanguage* language;
- PangoFontDescription* font;
-
- language = pango_context_get_language (context);
- if (language)
- {
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_LANGUAGE,
- g_strdup (pango_language_to_string (language)));
- }
- font = pango_context_get_font_description (context);
- if (font)
- {
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_STYLE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STYLE,
- pango_font_description_get_style (font))));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_VARIANT,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_VARIANT,
- pango_font_description_get_variant (font))));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_STRETCH,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STRETCH,
- pango_font_description_get_stretch (font))));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_FAMILY_NAME,
- g_strdup (pango_font_description_get_family (font)));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_WEIGHT,
- g_strdup_printf ("%d",
- pango_font_description_get_weight (font)));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_SIZE,
- g_strdup_printf ("%i",
- pango_font_description_get_size (font) / PANGO_SCALE));
- }
- }
- if (pango_layout_get_justify (layout))
- {
- int_value = 3;
- }
- else
- {
- PangoAlignment align;
-
- align = pango_layout_get_alignment (layout);
- if (align == PANGO_ALIGN_LEFT)
- int_value = 0;
- else if (align == PANGO_ALIGN_CENTER)
- int_value = 2;
- else /* if (align == PANGO_ALIGN_RIGHT) */
- int_value = 1;
- }
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_JUSTIFICATION,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_JUSTIFICATION,
- int_value)));
- mode = pango_layout_get_wrap (layout);
- if (mode == PANGO_WRAP_WORD)
- int_value = 2;
- else /* if (mode == PANGO_WRAP_CHAR) */
- int_value = 1;
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_WRAP_MODE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_WRAP_MODE,
- int_value)));
-
- style_context = gtk_widget_get_style_context (widget);
-
-G_GNUC_BEGIN_IGNORE_DEPRECATIONS
- gtk_style_context_get_background_color (style_context, 0, &color);
-G_GNUC_END_IGNORE_DEPRECATIONS
- value = g_strdup_printf ("%u,%u,%u",
- (guint) ceil (color.red * 65536 - color.red),
- (guint) ceil (color.green * 65536 - color.green),
- (guint) ceil (color.blue * 65536 - color.blue));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_BG_COLOR,
- value);
-
- gtk_style_context_get_color (style_context, 0, &color);
- value = g_strdup_printf ("%u,%u,%u",
- (guint) ceil (color.red * 65536 - color.red),
- (guint) ceil (color.green * 65536 - color.green),
- (guint) ceil (color.blue * 65536 - color.blue));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_FG_COLOR,
- value);
-
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_FG_STIPPLE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_FG_STIPPLE,
- 0)));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_BG_STIPPLE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_BG_STIPPLE,
- 0)));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_STRIKETHROUGH,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STRIKETHROUGH,
- 0)));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_UNDERLINE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_UNDERLINE,
- 0)));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_RISE,
- g_strdup_printf ("%i", 0));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_SCALE,
- g_strdup_printf ("%g", 1.0));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_BG_FULL_HEIGHT,
- g_strdup_printf ("%i", 0));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_PIXELS_INSIDE_WRAP,
- g_strdup_printf ("%i", 0));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_PIXELS_BELOW_LINES,
- g_strdup_printf ("%i", 0));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_PIXELS_ABOVE_LINES,
- g_strdup_printf ("%i", 0));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_EDITABLE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_EDITABLE,
- 0)));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_INVISIBLE,
- g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_INVISIBLE,
- 0)));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_INDENT,
- g_strdup_printf ("%i", 0));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_RIGHT_MARGIN,
- g_strdup_printf ("%i", 0));
- attrib_set = gail_misc_add_attribute (attrib_set,
- ATK_TEXT_ATTR_LEFT_MARGIN,
- g_strdup_printf ("%i", 0));
- return attrib_set;
-}
-
-/**
- * gail_misc_get_origins:
- * @widget: a #GtkWidget
- * @x_window: the x-origin of the widget->window
- * @y_window: the y-origin of the widget->window
- * @x_toplevel: the x-origin of the toplevel window for widget->window
- * @y_toplevel: the y-origin of the toplevel window for widget->window
- *
- * Gets the origin of the widget window, and the origin of the
- * widgets top-level window.
- **/
-void
-gail_misc_get_origins (GtkWidget *widget,
- gint *x_window,
- gint *y_window,
- gint *x_toplevel,
- gint *y_toplevel)
-{
- GdkWindow *window;
-
- if (GTK_IS_TREE_VIEW (widget))
- window = gtk_tree_view_get_bin_window (GTK_TREE_VIEW (widget));
- else
- window = gtk_widget_get_window (widget);
-
- gdk_window_get_origin (window, x_window, y_window);
- window = gdk_window_get_toplevel (gtk_widget_get_window (widget));
- gdk_window_get_origin (window, x_toplevel, y_toplevel);
-}
-
-/**
- * gail_misc_buffer_get_run_attributes:
- * @buffer: The #GtkTextBuffer for which the attributes will be obtained
- * @offset: The offset at which the attributes are required
- * @start_offset: The start offset of the current run
- * @end_offset: The end offset of the current run
- *
- * Creates an AtkAttributeSet which contains the attributes for the
- * run starting at offset.
- *
- * Returns: A pointer to the #AtkAttributeSet.
- **/
-AtkAttributeSet*
-gail_misc_buffer_get_run_attributes (GtkTextBuffer *buffer,
- gint offset,
- gint *start_offset,
- gint *end_offset)
-{
- GtkTextIter iter;
- AtkAttributeSet *attrib_set = NULL;
- AtkAttribute *at;
- GSList *tags, *temp_tags;
- gdouble scale = 1;
- gboolean val_set = FALSE;
-
- gtk_text_buffer_get_iter_at_offset (buffer, &iter, offset);
-
- gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
- *end_offset = gtk_text_iter_get_offset (&iter);
-
- gtk_text_iter_backward_to_tag_toggle (&iter, NULL);
- *start_offset = gtk_text_iter_get_offset (&iter);
-
- gtk_text_buffer_get_iter_at_offset (buffer, &iter, offset);
-
- tags = gtk_text_iter_get_tags (&iter);
- tags = g_slist_reverse (tags);
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "style-set", &val_set, NULL);
- if (val_set)
- {
- PangoStyle style;
- gchar *value;
-
- g_object_get (tag, "style", &style, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STYLE, style));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_STYLE, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "variant-set", &val_set, NULL);
- if (val_set)
- {
- PangoVariant variant;
- gchar *value;
-
- g_object_get (tag, "variant", &variant, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_VARIANT, variant));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_VARIANT, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "stretch-set", &val_set, NULL);
- if (val_set)
- {
- PangoStretch stretch;
- gchar *value;
-
- g_object_get (tag, "stretch", &stretch, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STRETCH, stretch));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_STRETCH, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "justification-set", &val_set, NULL);
- if (val_set)
- {
- GtkJustification justification;
- gchar *value;
-
- g_object_get (tag, "justification", &justification, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_JUSTIFICATION, justification));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_JUSTIFICATION, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
- GtkTextDirection direction;
-
- g_object_get (tag, "direction", &direction, NULL);
-
- if (direction != GTK_TEXT_DIR_NONE)
- {
- gchar *value;
- val_set = TRUE;
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, direction));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_DIRECTION, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "wrap-mode-set", &val_set, NULL);
- if (val_set)
- {
- GtkWrapMode wrap_mode;
- gchar *value;
-
- g_object_get (tag, "wrap-mode", &wrap_mode, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_WRAP_MODE, wrap_mode));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_WRAP_MODE, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "foreground-set", &val_set, NULL);
- if (val_set)
- {
- GdkRGBA *rgba;
- gchar *value;
-
- g_object_get (tag, "foreground-rgba", &rgba, NULL);
- value = g_strdup_printf ("%u,%u,%u",
- (guint) rgba->red * 65535,
- (guint) rgba->green * 65535,
- (guint) rgba->blue * 65535);
- gdk_rgba_free (rgba);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_FG_COLOR, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "background-set", &val_set, NULL);
- if (val_set)
- {
- GdkRGBA *rgba;
- gchar *value;
-
- g_object_get (tag, "background-rgba", &rgba, NULL);
- value = g_strdup_printf ("%u,%u,%u",
- (guint) rgba->red * 65535,
- (guint) rgba->green * 65535,
- (guint) rgba->blue * 65535);
- gdk_rgba_free (rgba);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_BG_COLOR, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "family-set", &val_set, NULL);
-
- if (val_set)
- {
- gchar *value;
- g_object_get (tag, "family", &value, NULL);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_FAMILY_NAME, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "language-set", &val_set, NULL);
-
- if (val_set)
- {
- gchar *value;
- g_object_get (tag, "language", &value, NULL);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_LANGUAGE, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "weight-set", &val_set, NULL);
-
- if (val_set)
- {
- gint weight;
- gchar *value;
-
- g_object_get (tag, "weight", &weight, NULL);
- value = g_strdup_printf ("%d", weight);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_WEIGHT, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
-
- /*
- * scale is special as the scale is the product of all scale values
- * specified.
- */
- temp_tags = tags;
- while (temp_tags)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
- gboolean scale_set;
-
- g_object_get (tag, "scale-set", &scale_set, NULL);
- if (scale_set)
- {
- gdouble font_scale;
-
- g_object_get (tag, "scale", &font_scale, NULL);
- val_set = TRUE;
- scale *= font_scale;
- }
- temp_tags = temp_tags->next;
- }
- if (val_set)
- {
- at = g_malloc(sizeof(AtkAttribute));
- at->name = g_strdup(atk_text_attribute_get_name (ATK_TEXT_ATTR_SCALE));
- at->value = g_strdup_printf("%g", scale);
- attrib_set = g_slist_prepend(attrib_set, at);
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "size-set", &val_set, NULL);
- if (val_set)
- {
- gint size;
- gchar *value;
- g_object_get (tag, "size", &size, NULL);
- value = g_strdup_printf ("%i", size);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_SIZE, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "strikethrough-set", &val_set, NULL);
- if (val_set)
- {
- gboolean strikethrough;
- gchar *value;
- g_object_get (tag, "strikethrough", &strikethrough, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STRIKETHROUGH, strikethrough));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_STRIKETHROUGH, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "underline-set", &val_set, NULL);
- if (val_set)
- {
- PangoUnderline underline;
- gchar *value;
- g_object_get (tag, "underline", &underline, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_UNDERLINE, underline));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_UNDERLINE, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "rise-set", &val_set, NULL);
- if (val_set)
- {
- gint rise;
- gchar *value;
- g_object_get (tag, "rise", &rise, NULL);
- value = g_strdup_printf ("%i", rise);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_RISE, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "background-full-height-set", &val_set, NULL);
- if (val_set)
- {
- gboolean bg_full_height;
- gchar *value;
- g_object_get (tag, "background-full-height", &bg_full_height, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_BG_FULL_HEIGHT, bg_full_height));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_BG_FULL_HEIGHT, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "pixels-inside-wrap-set", &val_set, NULL);
- if (val_set)
- {
- gint pixels;
- gchar *value;
- g_object_get (tag, "pixels-inside-wrap", &pixels, NULL);
- value = g_strdup_printf ("%i", pixels);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_PIXELS_INSIDE_WRAP, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "pixels-below-lines-set", &val_set, NULL);
- if (val_set)
- {
- gint pixels;
- gchar *value;
- g_object_get (tag, "pixels-below-lines", &pixels, NULL);
- value = g_strdup_printf ("%i", pixels);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_PIXELS_BELOW_LINES, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "pixels-above-lines-set", &val_set, NULL);
- if (val_set)
- {
- gint pixels;
- gchar *value;
- g_object_get (tag, "pixels-above-lines", &pixels, NULL);
- value = g_strdup_printf ("%i", pixels);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_PIXELS_ABOVE_LINES, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "editable-set", &val_set, NULL);
- if (val_set)
- {
- gboolean editable;
- gchar *value;
- g_object_get (tag, "editable", &editable, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_EDITABLE, editable));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_EDITABLE, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "invisible-set", &val_set, NULL);
- if (val_set)
- {
- gboolean invisible;
- gchar *value;
- g_object_get (tag, "invisible", &invisible, NULL);
- value = g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_INVISIBLE, invisible));
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_INVISIBLE, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "indent-set", &val_set, NULL);
- if (val_set)
- {
- gint indent;
- gchar *value;
- g_object_get (tag, "indent", &indent, NULL);
- value = g_strdup_printf ("%i", indent);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_INDENT, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "right-margin-set", &val_set, NULL);
- if (val_set)
- {
- gint margin;
- gchar *value;
- g_object_get (tag, "right-margin", &margin, NULL);
- value = g_strdup_printf ("%i", margin);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_RIGHT_MARGIN, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- temp_tags = tags;
- while (temp_tags && !val_set)
- {
- GtkTextTag *tag = GTK_TEXT_TAG (temp_tags->data);
-
- g_object_get (tag, "left-margin-set", &val_set, NULL);
- if (val_set)
- {
- gint margin;
- gchar *value;
- g_object_get (tag, "left-margin", &margin, NULL);
- value = g_strdup_printf ("%i", margin);
- attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_LEFT_MARGIN, value);
- }
- temp_tags = temp_tags->next;
- }
- val_set = FALSE;
-
- g_slist_free (tags);
- return attrib_set;
-}
+++ /dev/null
-/* 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 Library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include "gailtextutil.h"
-
-/**
- * SECTION:gailtextutil
- * @Short_description: GailTextUtil is a utility class which can be used to
- * implement some of the #AtkText functions for accessible objects
- * which implement #AtkText.
- * @Title: GailTextUtil
- *
- * GailTextUtil is a utility class which can be used to implement the
- * #AtkText functions which get text for accessible objects which implement
- * #AtkText.
- *
- * In GAIL it is used by the accsesible objects for #GnomeCanvasText, #GtkEntry,
- * #GtkLabel, #GtkCellRendererText and #GtkTextView.
- */
-
-static void gail_text_util_class_init (GailTextUtilClass *klass);
-
-static void gail_text_util_init (GailTextUtil *textutil);
-static void gail_text_util_finalize (GObject *object);
-
-
-static void get_pango_text_offsets (PangoLayout *layout,
- GtkTextBuffer *buffer,
- GailOffsetType function,
- AtkTextBoundary boundary_type,
- gint offset,
- gint *start_offset,
- gint *end_offset,
- GtkTextIter *start_iter,
- GtkTextIter *end_iter);
-static GObjectClass *parent_class = NULL;
-
-GType
-gail_text_util_get_type(void)
-{
- static GType type = 0;
-
- if (!type)
- {
- const GTypeInfo tinfo =
- {
- sizeof (GailTextUtilClass),
- (GBaseInitFunc) NULL, /* base init */
- (GBaseFinalizeFunc) NULL, /* base finalize */
- (GClassInitFunc) gail_text_util_class_init,
- (GClassFinalizeFunc) NULL, /* class finalize */
- NULL, /* class data */
- sizeof(GailTextUtil),
- 0, /* nb preallocs */
- (GInstanceInitFunc) gail_text_util_init,
- NULL, /* value table */
- };
-
- type = g_type_register_static (G_TYPE_OBJECT, "GailTextUtil", &tinfo, 0);
- }
- return type;
-}
-
-/**
- * gail_text_util_new:
- *
- * This function creates a new GailTextUtil object.
- *
- * Returns: the GailTextUtil object
- **/
-GailTextUtil*
-gail_text_util_new (void)
-{
- return GAIL_TEXT_UTIL (g_object_new (GAIL_TYPE_TEXT_UTIL, NULL));
-}
-
-static void
-gail_text_util_init (GailTextUtil *textutil)
-{
- textutil->buffer = NULL;
-}
-
-static void
-gail_text_util_class_init (GailTextUtilClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
- parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->finalize = gail_text_util_finalize;
-}
-
-static void
-gail_text_util_finalize (GObject *object)
-{
- GailTextUtil *textutil = GAIL_TEXT_UTIL (object);
-
- if (textutil->buffer)
- g_object_unref (textutil->buffer);
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-/**
- * gail_text_util_text_setup:
- * @textutil: The #GailTextUtil to be initialized.
- * @text: A gchar* which points to the text to be stored in the GailTextUtil
- *
- * This function initializes the GailTextUtil with the specified character string,
- **/
-void
-gail_text_util_text_setup (GailTextUtil *textutil,
- const gchar *text)
-{
- g_return_if_fail (GAIL_IS_TEXT_UTIL (textutil));
-
- if (textutil->buffer)
- {
- if (!text)
- {
- g_object_unref (textutil->buffer);
- textutil->buffer = NULL;
- return;
- }
- }
- else
- {
- textutil->buffer = gtk_text_buffer_new (NULL);
- }
-
- gtk_text_buffer_set_text (textutil->buffer, text, -1);
-}
-
-/**
- * gail_text_util_buffer_setup:
- * @textutil: A #GailTextUtil to be initialized
- * @buffer: The #GtkTextBuffer which identifies the text to be stored in the GailUtil.
- *
- * This function initializes the GailTextUtil with the specified GtkTextBuffer
- **/
-void
-gail_text_util_buffer_setup (GailTextUtil *textutil,
- GtkTextBuffer *buffer)
-{
- g_return_if_fail (GAIL_IS_TEXT_UTIL (textutil));
-
- textutil->buffer = g_object_ref (buffer);
-}
-
-/**
- * gail_text_util_get_text:
- * @textutil: A #GailTextUtil
- * @layout: A gpointer which is a PangoLayout, a GtkTreeView of NULL
- * @function: An enumeration specifying whether to return the text before, at, or
- * after the offset.
- * @boundary_type: The boundary type.
- * @offset: The offset of the text in the GailTextUtil
- * @start_offset: Address of location in which the start offset is returned
- * @end_offset: Address of location in which the end offset is returned
- *
- * This function gets the requested substring from the text in the GtkTextUtil.
- * The layout is used only for getting the text on a line. The value is NULL
- * for a GtkTextView which is not wrapped, is a GtkTextView for a GtkTextView
- * which is wrapped and is a PangoLayout otherwise.
- *
- * Returns: the substring requested
- **/
-gchar*
-gail_text_util_get_text (GailTextUtil *textutil,
- gpointer layout,
- GailOffsetType function,
- AtkTextBoundary boundary_type,
- gint offset,
- gint *start_offset,
- gint *end_offset)
-{
- GtkTextIter start, end;
- gint line_number;
- GtkTextBuffer *buffer;
-
- g_return_val_if_fail (GAIL_IS_TEXT_UTIL (textutil), NULL);
-
- buffer = textutil->buffer;
- if (buffer == NULL)
- {
- *start_offset = 0;
- *end_offset = 0;
- return NULL;
- }
-
- if (!gtk_text_buffer_get_char_count (buffer))
- {
- *start_offset = 0;
- *end_offset = 0;
- return g_strdup ("");
- }
- gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
-
-
- end = start;
-
- switch (function)
- {
- case GAIL_BEFORE_OFFSET:
- switch (boundary_type)
- {
- case ATK_TEXT_BOUNDARY_CHAR:
- gtk_text_iter_backward_char(&start);
- break;
- case ATK_TEXT_BOUNDARY_WORD_START:
- if (!gtk_text_iter_starts_word (&start))
- gtk_text_iter_backward_word_start (&start);
- end = start;
- gtk_text_iter_backward_word_start(&start);
- break;
- case ATK_TEXT_BOUNDARY_WORD_END:
- if (gtk_text_iter_inside_word (&start) &&
- !gtk_text_iter_starts_word (&start))
- gtk_text_iter_backward_word_start (&start);
- while (!gtk_text_iter_ends_word (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- end = start;
- gtk_text_iter_backward_word_start(&start);
- while (!gtk_text_iter_ends_word (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- break;
- case ATK_TEXT_BOUNDARY_SENTENCE_START:
- if (!gtk_text_iter_starts_sentence (&start))
- gtk_text_iter_backward_sentence_start (&start);
- end = start;
- gtk_text_iter_backward_sentence_start (&start);
- break;
- case ATK_TEXT_BOUNDARY_SENTENCE_END:
- if (gtk_text_iter_inside_sentence (&start) &&
- !gtk_text_iter_starts_sentence (&start))
- gtk_text_iter_backward_sentence_start (&start);
- while (!gtk_text_iter_ends_sentence (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- end = start;
- gtk_text_iter_backward_sentence_start (&start);
- while (!gtk_text_iter_ends_sentence (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- break;
- case ATK_TEXT_BOUNDARY_LINE_START:
- if (layout == NULL)
- {
- line_number = gtk_text_iter_get_line (&start);
- if (line_number == 0)
- {
- gtk_text_buffer_get_iter_at_offset (buffer,
- &start, 0);
- }
- else
- {
- gtk_text_iter_backward_line (&start);
- gtk_text_iter_forward_line (&start);
- }
- end = start;
- gtk_text_iter_backward_line (&start);
- }
- else if GTK_IS_TEXT_VIEW (layout)
- {
- GtkTextView *view = GTK_TEXT_VIEW (layout);
-
- gtk_text_view_backward_display_line_start (view, &start);
- end = start;
- gtk_text_view_backward_display_line (view, &start);
- }
- else if (PANGO_IS_LAYOUT (layout))
- get_pango_text_offsets (PANGO_LAYOUT (layout),
- buffer,
- function,
- boundary_type,
- offset,
- start_offset,
- end_offset,
- &start,
- &end);
- break;
- case ATK_TEXT_BOUNDARY_LINE_END:
- if (layout == NULL)
- {
- line_number = gtk_text_iter_get_line (&start);
- if (line_number == 0)
- {
- gtk_text_buffer_get_iter_at_offset (buffer,
- &start, 0);
- end = start;
- }
- else
- {
- gtk_text_iter_backward_line (&start);
- end = start;
- while (!gtk_text_iter_ends_line (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- gtk_text_iter_forward_to_line_end (&end);
- }
- }
- else if GTK_IS_TEXT_VIEW (layout)
- {
- GtkTextView *view = GTK_TEXT_VIEW (layout);
-
- gtk_text_view_backward_display_line_start (view, &start);
- if (!gtk_text_iter_is_start (&start))
- {
- gtk_text_view_backward_display_line (view, &start);
- end = start;
- if (!gtk_text_iter_is_start (&start))
- {
- gtk_text_view_backward_display_line (view, &start);
- gtk_text_view_forward_display_line_end (view, &start);
- }
- gtk_text_view_forward_display_line_end (view, &end);
- }
- else
- {
- end = start;
- }
- }
- else if (PANGO_IS_LAYOUT (layout))
- get_pango_text_offsets (PANGO_LAYOUT (layout),
- buffer,
- function,
- boundary_type,
- offset,
- start_offset,
- end_offset,
- &start,
- &end);
- break;
- }
- break;
-
- case GAIL_AT_OFFSET:
- switch (boundary_type)
- {
- case ATK_TEXT_BOUNDARY_CHAR:
- gtk_text_iter_forward_char (&end);
- break;
- case ATK_TEXT_BOUNDARY_WORD_START:
- if (!gtk_text_iter_starts_word (&start))
- gtk_text_iter_backward_word_start (&start);
- if (gtk_text_iter_inside_word (&end))
- gtk_text_iter_forward_word_end (&end);
- while (!gtk_text_iter_starts_word (&end))
- {
- if (!gtk_text_iter_forward_char (&end))
- break;
- }
- break;
- case ATK_TEXT_BOUNDARY_WORD_END:
- if (gtk_text_iter_inside_word (&start) &&
- !gtk_text_iter_starts_word (&start))
- gtk_text_iter_backward_word_start (&start);
- while (!gtk_text_iter_ends_word (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- gtk_text_iter_forward_word_end (&end);
- break;
- case ATK_TEXT_BOUNDARY_SENTENCE_START:
- if (!gtk_text_iter_starts_sentence (&start))
- gtk_text_iter_backward_sentence_start (&start);
- if (gtk_text_iter_inside_sentence (&end))
- gtk_text_iter_forward_sentence_end (&end);
- while (!gtk_text_iter_starts_sentence (&end))
- {
- if (!gtk_text_iter_forward_char (&end))
- break;
- }
- break;
- case ATK_TEXT_BOUNDARY_SENTENCE_END:
- if (gtk_text_iter_inside_sentence (&start) &&
- !gtk_text_iter_starts_sentence (&start))
- gtk_text_iter_backward_sentence_start (&start);
- while (!gtk_text_iter_ends_sentence (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- gtk_text_iter_forward_sentence_end (&end);
- break;
- case ATK_TEXT_BOUNDARY_LINE_START:
- if (layout == NULL)
- {
- line_number = gtk_text_iter_get_line (&start);
- if (line_number == 0)
- {
- gtk_text_buffer_get_iter_at_offset (buffer,
- &start, 0);
- }
- else
- {
- gtk_text_iter_backward_line (&start);
- gtk_text_iter_forward_line (&start);
- }
- gtk_text_iter_forward_line (&end);
- }
- else if GTK_IS_TEXT_VIEW (layout)
- {
- GtkTextView *view = GTK_TEXT_VIEW (layout);
-
- gtk_text_view_backward_display_line_start (view, &start);
- /*
- * The call to gtk_text_iter_forward_to_end() is needed
- * because of bug 81960
- */
- if (!gtk_text_view_forward_display_line (view, &end))
- gtk_text_iter_forward_to_end (&end);
- }
- else if PANGO_IS_LAYOUT (layout)
- get_pango_text_offsets (PANGO_LAYOUT (layout),
- buffer,
- function,
- boundary_type,
- offset,
- start_offset,
- end_offset,
- &start,
- &end);
-
- break;
- case ATK_TEXT_BOUNDARY_LINE_END:
- if (layout == NULL)
- {
- line_number = gtk_text_iter_get_line (&start);
- if (line_number == 0)
- {
- gtk_text_buffer_get_iter_at_offset (buffer,
- &start, 0);
- }
- else
- {
- gtk_text_iter_backward_line (&start);
- gtk_text_iter_forward_line (&start);
- }
- while (!gtk_text_iter_ends_line (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- gtk_text_iter_forward_to_line_end (&end);
- }
- else if GTK_IS_TEXT_VIEW (layout)
- {
- GtkTextView *view = GTK_TEXT_VIEW (layout);
-
- gtk_text_view_backward_display_line_start (view, &start);
- if (!gtk_text_iter_is_start (&start))
- {
- gtk_text_view_backward_display_line (view, &start);
- gtk_text_view_forward_display_line_end (view, &start);
- }
- gtk_text_view_forward_display_line_end (view, &end);
- }
- else if PANGO_IS_LAYOUT (layout)
- get_pango_text_offsets (PANGO_LAYOUT (layout),
- buffer,
- function,
- boundary_type,
- offset,
- start_offset,
- end_offset,
- &start,
- &end);
- break;
- }
- break;
-
- case GAIL_AFTER_OFFSET:
- switch (boundary_type)
- {
- case ATK_TEXT_BOUNDARY_CHAR:
- gtk_text_iter_forward_char(&start);
- gtk_text_iter_forward_chars(&end, 2);
- break;
- case ATK_TEXT_BOUNDARY_WORD_START:
- if (gtk_text_iter_inside_word (&end))
- gtk_text_iter_forward_word_end (&end);
- while (!gtk_text_iter_starts_word (&end))
- {
- if (!gtk_text_iter_forward_char (&end))
- break;
- }
- start = end;
- if (!gtk_text_iter_is_end (&end))
- {
- gtk_text_iter_forward_word_end (&end);
- while (!gtk_text_iter_starts_word (&end))
- {
- if (!gtk_text_iter_forward_char (&end))
- break;
- }
- }
- break;
- case ATK_TEXT_BOUNDARY_WORD_END:
- gtk_text_iter_forward_word_end (&end);
- start = end;
- if (!gtk_text_iter_is_end (&end))
- gtk_text_iter_forward_word_end (&end);
- break;
- case ATK_TEXT_BOUNDARY_SENTENCE_START:
- if (gtk_text_iter_inside_sentence (&end))
- gtk_text_iter_forward_sentence_end (&end);
- while (!gtk_text_iter_starts_sentence (&end))
- {
- if (!gtk_text_iter_forward_char (&end))
- break;
- }
- start = end;
- if (!gtk_text_iter_is_end (&end))
- {
- gtk_text_iter_forward_sentence_end (&end);
- while (!gtk_text_iter_starts_sentence (&end))
- {
- if (!gtk_text_iter_forward_char (&end))
- break;
- }
- }
- break;
- case ATK_TEXT_BOUNDARY_SENTENCE_END:
- gtk_text_iter_forward_sentence_end (&end);
- start = end;
- if (!gtk_text_iter_is_end (&end))
- gtk_text_iter_forward_sentence_end (&end);
- break;
- case ATK_TEXT_BOUNDARY_LINE_START:
- if (layout == NULL)
- {
- gtk_text_iter_forward_line (&end);
- start = end;
- gtk_text_iter_forward_line (&end);
- }
- else if GTK_IS_TEXT_VIEW (layout)
- {
- GtkTextView *view = GTK_TEXT_VIEW (layout);
-
- gtk_text_view_forward_display_line (view, &end);
- start = end;
- gtk_text_view_forward_display_line (view, &end);
- }
- else if (PANGO_IS_LAYOUT (layout))
- get_pango_text_offsets (PANGO_LAYOUT (layout),
- buffer,
- function,
- boundary_type,
- offset,
- start_offset,
- end_offset,
- &start,
- &end);
- break;
- case ATK_TEXT_BOUNDARY_LINE_END:
- if (layout == NULL)
- {
- gtk_text_iter_forward_line (&start);
- end = start;
- if (!gtk_text_iter_is_end (&start))
- {
- while (!gtk_text_iter_ends_line (&start))
- {
- if (!gtk_text_iter_backward_char (&start))
- break;
- }
- gtk_text_iter_forward_to_line_end (&end);
- }
- }
- else if GTK_IS_TEXT_VIEW (layout)
- {
- GtkTextView *view = GTK_TEXT_VIEW (layout);
-
- gtk_text_view_forward_display_line_end (view, &end);
- start = end;
- gtk_text_view_forward_display_line (view, &end);
- gtk_text_view_forward_display_line_end (view, &end);
- }
- else if (PANGO_IS_LAYOUT (layout))
- get_pango_text_offsets (PANGO_LAYOUT (layout),
- buffer,
- function,
- boundary_type,
- offset,
- start_offset,
- end_offset,
- &start,
- &end);
- break;
- }
- break;
- }
- *start_offset = gtk_text_iter_get_offset (&start);
- *end_offset = gtk_text_iter_get_offset (&end);
-
- return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
-}
-
-/**
- * gail_text_util_get_substring:
- * @textutil: A #GailTextUtil
- * @start_pos: The start position of the substring
- * @end_pos: The end position of the substring.
- *
- * Gets the substring indicated by @start_pos and @end_pos
- *
- * Returns: the substring indicated by @start_pos and @end_pos
- **/
-gchar*
-gail_text_util_get_substring (GailTextUtil *textutil,
- gint start_pos,
- gint end_pos)
-{
- GtkTextIter start, end;
- GtkTextBuffer *buffer;
-
- g_return_val_if_fail(GAIL_IS_TEXT_UTIL (textutil), NULL);
-
- buffer = textutil->buffer;
- if (buffer == NULL)
- return NULL;
-
- gtk_text_buffer_get_iter_at_offset (buffer, &start, start_pos);
- if (end_pos < 0)
- gtk_text_buffer_get_end_iter (buffer, &end);
- else
- gtk_text_buffer_get_iter_at_offset (buffer, &end, end_pos);
-
- return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
-}
-
-static void
-get_pango_text_offsets (PangoLayout *layout,
- GtkTextBuffer *buffer,
- GailOffsetType function,
- AtkTextBoundary boundary_type,
- gint offset,
- gint *start_offset,
- gint *end_offset,
- GtkTextIter *start_iter,
- GtkTextIter *end_iter)
-{
- PangoLayoutIter *iter;
- PangoLayoutLine *line, *prev_line = NULL, *prev_prev_line = NULL;
- gint index, start_index, end_index;
- const gchar *text;
- gboolean found = FALSE;
-
- text = pango_layout_get_text (layout);
- index = g_utf8_offset_to_pointer (text, offset) - text;
- iter = pango_layout_get_iter (layout);
- do
- {
- line = pango_layout_iter_get_line (iter);
- start_index = line->start_index;
- end_index = start_index + line->length;
-
- if (index >= start_index && index <= end_index)
- {
- /*
- * Found line for offset
- */
- switch (function)
- {
- case GAIL_BEFORE_OFFSET:
- /*
- * We want the previous line
- */
- if (prev_line)
- {
- switch (boundary_type)
- {
- case ATK_TEXT_BOUNDARY_LINE_START:
- end_index = start_index;
- start_index = prev_line->start_index;
- break;
- case ATK_TEXT_BOUNDARY_LINE_END:
- if (prev_prev_line)
- start_index = prev_prev_line->start_index +
- prev_prev_line->length;
- end_index = prev_line->start_index + prev_line->length;
- break;
- default:
- g_assert_not_reached();
- }
- }
- else
- start_index = end_index = 0;
- break;
- case GAIL_AT_OFFSET:
- switch (boundary_type)
- {
- case ATK_TEXT_BOUNDARY_LINE_START:
- if (pango_layout_iter_next_line (iter))
- end_index = pango_layout_iter_get_line (iter)->start_index;
- break;
- case ATK_TEXT_BOUNDARY_LINE_END:
- if (prev_line)
- start_index = prev_line->start_index +
- prev_line->length;
- break;
- default:
- g_assert_not_reached();
- }
- break;
- case GAIL_AFTER_OFFSET:
- /*
- * We want the next line
- */
- if (pango_layout_iter_next_line (iter))
- {
- line = pango_layout_iter_get_line (iter);
- switch (boundary_type)
- {
- case ATK_TEXT_BOUNDARY_LINE_START:
- start_index = line->start_index;
- if (pango_layout_iter_next_line (iter))
- end_index = pango_layout_iter_get_line (iter)->start_index;
- else
- end_index = start_index + line->length;
- break;
- case ATK_TEXT_BOUNDARY_LINE_END:
- start_index = end_index;
- end_index = line->start_index + line->length;
- break;
- default:
- g_assert_not_reached();
- }
- }
- else
- start_index = end_index;
- break;
- }
- found = TRUE;
- break;
- }
- prev_prev_line = prev_line;
- prev_line = line;
- }
- while (pango_layout_iter_next_line (iter));
-
- if (!found)
- {
- start_index = prev_line->start_index + prev_line->length;
- end_index = start_index;
- }
- pango_layout_iter_free (iter);
- *start_offset = g_utf8_pointer_to_offset (text, text + start_index);
- *end_offset = g_utf8_pointer_to_offset (text, text + end_index);
-
- gtk_text_buffer_get_iter_at_offset (buffer, start_iter, *start_offset);
- gtk_text_buffer_get_iter_at_offset (buffer, end_iter, *end_offset);
-}
projects / gtk4.git / commitdiff