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do not call _gtk_text_btree_get_iter_at_line() and

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2007-11-15  Yevgen Muntyan  <muntyan@tamu.edu>

	* gtk/gtktextlayout.c: (gtk_text_layout_get_line_display),
	(get_style): do not call _gtk_text_btree_get_iter_at_line() and
	_gtk_text_btree_get_tags() for every segment, instead call them
	once and then collect the tags while iterating over the segments.
	(get_tags_array_at_iter), (tags_array_toggle_tag): new functions
	for tags array handling.


svn path=/trunk/; revision=18994
This commit is contained in:
Yevgen Muntyan 2007-11-15 16:24:42 +00:00 committed by Yevgen Muntyan
parent aa8329533f
commit a3eb6a98d7
2 changed files with 82 additions and 23 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2007-11-15 Yevgen Muntyan <muntyan@tamu.edu>
* gtk/gtktextlayout.c: (gtk_text_layout_get_line_display),
(get_style): do not call _gtk_text_btree_get_iter_at_line() and
_gtk_text_btree_get_tags() for every segment, instead call them
once and then collect the tags while iterating over the segments.
(get_tags_array_at_iter), (tags_array_toggle_tag): new functions
for tags array handling.
2007-11-14 Michael Natterer <mitch@imendio.com>
* gtk/gtkmenu.c (gtk_menu_popup): remove recently added

96
gtk/gtktextlayout.c
View File

@ -1166,10 +1166,8 @@ gtk_text_layout_real_wrap (GtkTextLayout *layout,
release_style () to free it. */
static GtkTextAttributes*
get_style (GtkTextLayout *layout,
const GtkTextIter *iter)
GPtrArray *tags)
{
GtkTextTag** tags;
gint tag_count = 0;
GtkTextAttributes *style;
/* If we have the one-style cache, then it means
@ -1184,11 +1182,8 @@ get_style (GtkTextLayout *layout,
g_assert (layout->one_style_cache == NULL);
/* Get the tags at this spot */
tags = _gtk_text_btree_get_tags (iter, &tag_count);
/* No tags, use default style */
if (tags == NULL || tag_count == 0)
if (tags == NULL || tags->len == 0)
{
/* One ref for the return value, one ref for the
layout->one_style_cache reference */
@ -1196,24 +1191,17 @@ get_style (GtkTextLayout *layout,
gtk_text_attributes_ref (layout->default_style);
layout->one_style_cache = layout->default_style;
g_free (tags);
return layout->default_style;
}
/* Sort tags in ascending order of priority */
_gtk_text_tag_array_sort (tags, tag_count);
style = gtk_text_attributes_new ();
gtk_text_attributes_copy_values (layout->default_style,
style);
_gtk_text_attributes_fill_from_tags (style,
tags,
tag_count);
g_free (tags);
(GtkTextTag**) tags->pdata,
tags->len);
g_assert (style->refcount == 1);
@ -2071,6 +2059,60 @@ update_text_display_cursors (GtkTextLayout *layout,
g_slist_free (cursor_segs);
}
/* Same as _gtk_text_btree_get_tags(), except it returns GPtrArray,
* to be used in gtk_text_layout_get_line_display(). */
static GPtrArray *
get_tags_array_at_iter (GtkTextIter *iter)
{
GtkTextTag **tags;
GPtrArray *array = NULL;
gint n_tags;
tags = _gtk_text_btree_get_tags (iter, &n_tags);
if (n_tags > 0)
{
/* Sort tags in ascending order of priority */
_gtk_text_tag_array_sort (tags, n_tags);
array = g_ptr_array_sized_new (n_tags);
g_ptr_array_set_size (array, n_tags);
memcpy (array->pdata, tags, n_tags * sizeof (GtkTextTag*));
}
g_free (tags);
return array;
}
/* Add the tag to the array if it's not there already, and remove
* it otherwise. It keeps the array sorted by tags priority. */
static GPtrArray *
tags_array_toggle_tag (GPtrArray *array,
GtkTextTag *tag)
{
gint pos;
GtkTextTag **tags;
if (array == NULL)
array = g_ptr_array_new ();
tags = (GtkTextTag**) array->pdata;
for (pos = 0; pos < array->len && tags[pos]->priority < tag->priority; pos++) ;
if (pos < array->len && tags[pos] == tag)
g_ptr_array_remove_index (array, pos);
else
{
g_ptr_array_set_size (array, array->len + 1);
if (pos < array->len - 1)
memmove (array->pdata + pos + 1, array->pdata + pos,
(array->len - pos - 1) * sizeof (GtkTextTag*));
array->pdata[pos] = tag;
}
return array;
}
GtkTextLineDisplay *
gtk_text_layout_get_line_display (GtkTextLayout *layout,
GtkTextLine *line,
@ -2091,6 +2133,8 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
GSList *tmp_list1, *tmp_list2;
gboolean saw_widget = FALSE;
PangoDirection base_dir;
GPtrArray *tags;
gboolean initial_toggle_segments;
g_return_val_if_fail (line != NULL, NULL);
@ -2155,10 +2199,12 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
attrs = pango_attr_list_new ();
/* Iterate over segments, creating display chunks for them. */
/* Iterate over segments, creating display chunks for them, and updating the tags array. */
layout_byte_offset = 0; /* current length of layout text (includes preedit, does not include invisible text) */
buffer_byte_offset = 0; /* position in the buffer line */
seg = _gtk_text_iter_get_any_segment (&iter);
tags = get_tags_array_at_iter (&iter);
initial_toggle_segments = TRUE;
while (seg != NULL)
{
/* Displayable segments */
@ -2166,10 +2212,8 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
seg->type == &gtk_text_pixbuf_type ||
seg->type == &gtk_text_child_type)
{
_gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
&iter, line,
buffer_byte_offset);
style = get_style (layout, &iter);
style = get_style (layout, tags);
initial_toggle_segments = FALSE;
/* We have to delay setting the paragraph values until we
* hit the first pixbuf or text segment because toggles at
@ -2298,6 +2342,10 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
/* Style may have changed, drop our
current cached style */
invalidate_cached_style (layout);
/* Add the tag only after we have seen some non-toggle non-mark segment,
* otherwise the tag is already accounted for by _gtk_text_btree_get_tags(). */
if (!initial_toggle_segments)
tags = tags_array_toggle_tag (tags, seg->body.toggle.info->tag);
}
/* Marks */
@ -2318,7 +2366,7 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
text_allocated += layout->preedit_len;
text = g_realloc (text, text_allocated);
style = get_style (layout, &iter);
style = get_style (layout, tags);
add_preedit_attrs (layout, style, attrs, layout_byte_offset, size_only);
release_style (layout, style);
@ -2349,7 +2397,7 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
if (!para_values_set)
{
style = get_style (layout, &iter);
style = get_style (layout, tags);
set_para_values (layout, base_dir, style, display);
release_style (layout, style);
}
@ -2426,6 +2474,8 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
g_free (text);
pango_attr_list_unref (attrs);
if (tags != NULL)
g_ptr_array_free (tags, TRUE);
layout->one_display_cache = display;