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Avoid recreating pangolayouts in GtkTextView on cursor movement (#435405,

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2007-06-01  Yevgen Muntyan  <muntyan@tamu.edu>

	Avoid recreating pangolayouts in GtkTextView on cursor movement
	(#435405, Behdad Esfahbod).

	* gtk/gtktextlayout.c:
	* gtk/gtktextlayout.h: new GtkTextLayout method invalidate_cursors(),
	and functions gtk_text_layout_invalidate_cursors() and
	gtk_text_layout_cursors_changed(), to use when invalidation is due
	to moved marks or changed selection.

	* gtk/gtktextbtree.c:
	* gtk/gtktextbtree.h: use what's appropriate when invalidating layout.

	* gtk/gtk.symbols: add new functions.

	* README.in: added a note about changed GtkTextLayout API.


svn path=/trunk/; revision=18000
This commit is contained in:
Yevgen Muntyan 2007-06-01 06:25:43 +00:00 committed by Yevgen Muntyan
parent 5ffdc33df0
commit 8f4aa8c6d7
7 changed files with 316 additions and 54 deletions
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18
ChangeLog
View File

@ -1,3 +1,21 @@
2007-06-01 Yevgen Muntyan <muntyan@tamu.edu>
Avoid recreating pangolayouts in GtkTextView on cursor movement
(#435405, Behdad Esfahbod).
* gtk/gtktextlayout.c:
* gtk/gtktextlayout.h: new GtkTextLayout method invalidate_cursors(),
and functions gtk_text_layout_invalidate_cursors() and
gtk_text_layout_cursors_changed(), to use when invalidation is due
to moved marks or changed selection.
* gtk/gtktextbtree.c:
* gtk/gtktextbtree.h: use what's appropriate when invalidating layout.
* gtk/gtk.symbols: add new functions.
* README.in: added a note about changed GtkTextLayout API.
2007-06-01 Alp Toker <alp.toker@collabora.co.uk> 2007-06-01 Alp Toker <alp.toker@collabora.co.uk>
* gdk/gdkcairo.c (gdk_cairo_set_source_pixmap): Fix doc typos. * gdk/gdkcairo.c (gdk_cairo_set_source_pixmap): Fix doc typos.

10
README.in
View File

@ -48,6 +48,16 @@ Release notes for 2.12
GDK for drawing decorations. In particular, metacity <= 2.18.0 is affected GDK for drawing decorations. In particular, metacity <= 2.18.0 is affected
by this. The problem has been fixed in metacity 2.18.1. by this. The problem has been fixed in metacity 2.18.1.
* Semi-private GtkTextLayout api has changed: new GtkTextLayout method
invalidate_cursors(), and new functions gtk_text_layout_invalidate_cursors()
and gtk_text_layout_cursors_changed(), which should be used in place of
gtk_text_layout_invalidate() and gtk_text_layout_changed() if invalidation
is due to marks moved or changed selection; new GtkTextLineDisplay structure
member. Source compatibility is preserved; binary compatibility may break
only if GtkTextLineDisplay structure was created on stack or as a part
of another structure (in particular GnomeCanvas and its clones do not need
recompiling).
Release notes for 2.10 Release notes for 2.10
====================== ======================

2
gtk/gtk.symbols
View File

@ -3715,6 +3715,7 @@ gtk_text_iter_toggles_tag
#if IN_HEADER(__GTK_TEXT_LAYOUT_H__) #if IN_HEADER(__GTK_TEXT_LAYOUT_H__)
#if IN_FILE(__GTK_TEXT_LAYOUT_C__) #if IN_FILE(__GTK_TEXT_LAYOUT_C__)
gtk_text_layout_changed gtk_text_layout_changed
gtk_text_layout_cursors_changed
gtk_text_layout_clamp_iter_to_vrange gtk_text_layout_clamp_iter_to_vrange
gtk_text_layout_default_style_changed gtk_text_layout_default_style_changed
gtk_text_layout_free_line_data gtk_text_layout_free_line_data
@ -3733,6 +3734,7 @@ gtk_text_layout_get_line_yrange
gtk_text_layout_get_size gtk_text_layout_get_size
gtk_text_layout_get_type G_GNUC_CONST gtk_text_layout_get_type G_GNUC_CONST
gtk_text_layout_invalidate gtk_text_layout_invalidate
gtk_text_layout_invalidate_cursors
gtk_text_layout_is_valid gtk_text_layout_is_valid
gtk_text_layout_iter_starts_line gtk_text_layout_iter_starts_line
gtk_text_layout_move_iter_to_line_end gtk_text_layout_move_iter_to_line_end

76
gtk/gtktextbtree.c
View File

@ -340,7 +340,8 @@ static void gtk_text_btree_remove_tag_info (GtkTextBTree *tre
static void redisplay_region (GtkTextBTree *tree, static void redisplay_region (GtkTextBTree *tree,
const GtkTextIter *start, const GtkTextIter *start,
const GtkTextIter *end); const GtkTextIter *end,
gboolean cursors_only);
/* Inline thingies */ /* Inline thingies */
@ -663,7 +664,7 @@ gtk_text_btree_resolve_bidi (GtkTextIter *start,
*/ */
line = _gtk_text_line_previous (line); line = _gtk_text_line_previous (line);
_gtk_text_btree_get_iter_at_line (tree, &end_propagate, line, 0); _gtk_text_btree_get_iter_at_line (tree, &end_propagate, line, 0);
_gtk_text_btree_invalidate_region (tree, end, &end_propagate); _gtk_text_btree_invalidate_region (tree, end, &end_propagate, FALSE);
} }
/* Sweep backward */ /* Sweep backward */
@ -719,7 +720,7 @@ gtk_text_btree_resolve_bidi (GtkTextIter *start,
if (line && line->dir_propagated_forward == PANGO_DIRECTION_NEUTRAL) if (line && line->dir_propagated_forward == PANGO_DIRECTION_NEUTRAL)
{ {
_gtk_text_btree_get_iter_at_line (tree, &start_propagate, line, 0); _gtk_text_btree_get_iter_at_line (tree, &start_propagate, line, 0);
_gtk_text_btree_invalidate_region(tree, &start_propagate, start); _gtk_text_btree_invalidate_region (tree, &start_propagate, start, FALSE);
} }
} }
} }
@ -756,7 +757,7 @@ _gtk_text_btree_delete (GtkTextIter *start,
/* Broadcast the need for redisplay before we break the iterators */ /* Broadcast the need for redisplay before we break the iterators */
DV (g_print ("invalidating due to deleting some text (%s)\n", G_STRLOC)); DV (g_print ("invalidating due to deleting some text (%s)\n", G_STRLOC));
_gtk_text_btree_invalidate_region (tree, start, end); _gtk_text_btree_invalidate_region (tree, start, end, FALSE);
/* Save the byte offset so we can reset the iterators */ /* Save the byte offset so we can reset the iterators */
start_byte_offset = gtk_text_iter_get_line_index (start); start_byte_offset = gtk_text_iter_get_line_index (start);
@ -1241,8 +1242,7 @@ _gtk_text_btree_insert (GtkTextIter *iter,
gtk_text_iter_forward_chars (&end, char_count_delta); gtk_text_iter_forward_chars (&end, char_count_delta);
DV (g_print ("invalidating due to inserting some text (%s)\n", G_STRLOC)); DV (g_print ("invalidating due to inserting some text (%s)\n", G_STRLOC));
_gtk_text_btree_invalidate_region (tree, _gtk_text_btree_invalidate_region (tree, &start, &end, FALSE);
&start, &end);
/* Convenience for the user */ /* Convenience for the user */
@ -1292,7 +1292,7 @@ insert_pixbuf_or_widget_segment (GtkTextIter *iter,
gtk_text_iter_forward_char (iter); /* skip forward past the segment */ gtk_text_iter_forward_char (iter); /* skip forward past the segment */
DV (g_print ("invalidating due to inserting pixbuf/widget (%s)\n", G_STRLOC)); DV (g_print ("invalidating due to inserting pixbuf/widget (%s)\n", G_STRLOC));
_gtk_text_btree_invalidate_region (tree, &start, iter); _gtk_text_btree_invalidate_region (tree, &start, iter, FALSE);
} }
void void
@ -1627,7 +1627,8 @@ _gtk_text_btree_remove_view (GtkTextBTree *tree,
void void
_gtk_text_btree_invalidate_region (GtkTextBTree *tree, _gtk_text_btree_invalidate_region (GtkTextBTree *tree,
const GtkTextIter *start, const GtkTextIter *start,
const GtkTextIter *end) const GtkTextIter *end,
gboolean cursors_only)
{ {
BTreeView *view; BTreeView *view;
@ -1635,7 +1636,10 @@ _gtk_text_btree_invalidate_region (GtkTextBTree *tree,
while (view != NULL) while (view != NULL)
{ {
gtk_text_layout_invalidate (view->layout, start, end); if (cursors_only)
gtk_text_layout_invalidate_cursors (view->layout, start, end);
else
gtk_text_layout_invalidate (view->layout, start, end);
view = view->next; view = view->next;
} }
@ -1740,12 +1744,12 @@ queue_tag_redisplay (GtkTextBTree *tree,
if (_gtk_text_tag_affects_size (tag)) if (_gtk_text_tag_affects_size (tag))
{ {
DV (g_print ("invalidating due to size-affecting tag (%s)\n", G_STRLOC)); DV (g_print ("invalidating due to size-affecting tag (%s)\n", G_STRLOC));
_gtk_text_btree_invalidate_region (tree, start, end); _gtk_text_btree_invalidate_region (tree, start, end, FALSE);
} }
else if (_gtk_text_tag_affects_nonsize_appearance (tag)) else if (_gtk_text_tag_affects_nonsize_appearance (tag))
{ {
/* We only need to queue a redraw, not a relayout */ /* We only need to queue a redraw, not a relayout */
redisplay_region (tree, start, end); redisplay_region (tree, start, end, FALSE);
} }
/* We don't need to do anything if the tag doesn't affect display */ /* We don't need to do anything if the tag doesn't affect display */
@ -2599,7 +2603,8 @@ _gtk_text_btree_char_is_invisible (const GtkTextIter *iter)
static void static void
redisplay_region (GtkTextBTree *tree, redisplay_region (GtkTextBTree *tree,
const GtkTextIter *start, const GtkTextIter *start,
const GtkTextIter *end) const GtkTextIter *end,
gboolean cursors_only)
{ {
BTreeView *view; BTreeView *view;
GtkTextLine *start_line, *end_line; GtkTextLine *start_line, *end_line;
@ -2631,9 +2636,14 @@ redisplay_region (GtkTextBTree *tree,
if (ld) if (ld)
end_y += ld->height; end_y += ld->height;
gtk_text_layout_changed (view->layout, start_y, if (cursors_only)
end_y - start_y, gtk_text_layout_cursors_changed (view->layout, start_y,
end_y - start_y); end_y - start_y,
end_y - start_y);
else
gtk_text_layout_changed (view->layout, start_y,
end_y - start_y,
end_y - start_y);
view = view->next; view = view->next;
} }
@ -2653,8 +2663,7 @@ redisplay_mark (GtkTextLineSegment *mark)
gtk_text_iter_forward_char (&end); gtk_text_iter_forward_char (&end);
DV (g_print ("invalidating due to moving visible mark (%s)\n", G_STRLOC)); DV (g_print ("invalidating due to moving visible mark (%s)\n", G_STRLOC));
_gtk_text_btree_invalidate_region (mark->body.mark.tree, _gtk_text_btree_invalidate_region (mark->body.mark.tree, &iter, &end, TRUE);
&iter, &end);
} }
static void static void
@ -2729,7 +2738,7 @@ real_set_mark (GtkTextBTree *tree,
_gtk_text_btree_get_iter_at_mark (tree, &old_pos, _gtk_text_btree_get_iter_at_mark (tree, &old_pos,
mark->body.mark.obj); mark->body.mark.obj);
redisplay_region (tree, &old_pos, where); redisplay_region (tree, &old_pos, where, TRUE);
} }
/* /*
@ -2863,18 +2872,28 @@ _gtk_text_btree_select_range (GtkTextBTree *tree,
const GtkTextIter *ins, const GtkTextIter *ins,
const GtkTextIter *bound) const GtkTextIter *bound)
{ {
GtkTextIter start, end; GtkTextIter old_ins, old_bound;
if (_gtk_text_btree_get_selection_bounds (tree, &start, &end)) _gtk_text_btree_get_iter_at_mark (tree, &old_ins,
redisplay_region (tree, &start, &end); tree->insert_mark);
_gtk_text_btree_get_iter_at_mark (tree, &old_bound,
tree->selection_bound_mark);
/* Move insert AND selection_bound before we redisplay */ /* Check if it's no-op since gtk_text_buffer_place_cursor()
real_set_mark (tree, tree->insert_mark, * also calls this, and this will redraw the cursor line. */
"insert", FALSE, ins, TRUE, FALSE); if (!gtk_text_iter_equal (&old_ins, ins) ||
real_set_mark (tree, tree->selection_bound_mark, !gtk_text_iter_equal (&old_bound, bound))
"selection_bound", FALSE, bound, TRUE, FALSE); {
redisplay_region (tree, &old_ins, &old_bound, TRUE);
redisplay_region (tree, ins, bound); /* Move insert AND selection_bound before we redisplay */
real_set_mark (tree, tree->insert_mark,
"insert", FALSE, ins, TRUE, FALSE);
real_set_mark (tree, tree->selection_bound_mark,
"selection_bound", FALSE, bound, TRUE, FALSE);
redisplay_region (tree, ins, bound, TRUE);
}
} }
@ -5619,8 +5638,7 @@ tag_changed_cb (GtkTextTagTable *table,
/* Must be a last toggle if there was a first one. */ /* Must be a last toggle if there was a first one. */
_gtk_text_btree_get_iter_at_last_toggle (tree, &end, tag); _gtk_text_btree_get_iter_at_last_toggle (tree, &end, tag);
DV (g_print ("invalidating due to tag change (%s)\n", G_STRLOC)); DV (g_print ("invalidating due to tag change (%s)\n", G_STRLOC));
_gtk_text_btree_invalidate_region (tree, _gtk_text_btree_invalidate_region (tree, &start, &end, FALSE);
&start, &end);
} }
} }

3
gtk/gtktextbtree.h
View File

@ -92,7 +92,8 @@ void _gtk_text_btree_remove_view (GtkTextBTree *tree,
gpointer view_id); gpointer view_id);
void _gtk_text_btree_invalidate_region (GtkTextBTree *tree, void _gtk_text_btree_invalidate_region (GtkTextBTree *tree,
const GtkTextIter *start, const GtkTextIter *start,
const GtkTextIter *end); const GtkTextIter *end,
gboolean cursors_only);
void _gtk_text_btree_get_view_size (GtkTextBTree *tree, void _gtk_text_btree_get_view_size (GtkTextBTree *tree,
gpointer view_id, gpointer view_id,
gint *width, gint *width,

247
gtk/gtktextlayout.c
View File

@ -110,9 +110,14 @@ static void gtk_text_layout_invalidated (GtkTextLayout *layout);
static void gtk_text_layout_real_invalidate (GtkTextLayout *layout, static void gtk_text_layout_real_invalidate (GtkTextLayout *layout,
const GtkTextIter *start, const GtkTextIter *start,
const GtkTextIter *end); const GtkTextIter *end);
static void gtk_text_layout_real_invalidate_cursors(GtkTextLayout *layout,
const GtkTextIter *start,
const GtkTextIter *end);
static void gtk_text_layout_invalidate_cache (GtkTextLayout *layout, static void gtk_text_layout_invalidate_cache (GtkTextLayout *layout,
GtkTextLine *line); GtkTextLine *line,
static void gtk_text_layout_invalidate_cursor_line (GtkTextLayout *layout); gboolean cursors_only);
static void gtk_text_layout_invalidate_cursor_line (GtkTextLayout *layout,
gboolean cursors_only);
static void gtk_text_layout_real_free_line_data (GtkTextLayout *layout, static void gtk_text_layout_real_free_line_data (GtkTextLayout *layout,
GtkTextLine *line, GtkTextLine *line,
GtkTextLineData *line_data); GtkTextLineData *line_data);
@ -172,6 +177,7 @@ gtk_text_layout_class_init (GtkTextLayoutClass *klass)
klass->wrap = gtk_text_layout_real_wrap; klass->wrap = gtk_text_layout_real_wrap;
klass->invalidate = gtk_text_layout_real_invalidate; klass->invalidate = gtk_text_layout_real_invalidate;
klass->invalidate_cursors = gtk_text_layout_real_invalidate_cursors;
klass->free_line_data = gtk_text_layout_real_free_line_data; klass->free_line_data = gtk_text_layout_real_free_line_data;
signals[INVALIDATED] = signals[INVALIDATED] =
@ -411,7 +417,7 @@ gtk_text_layout_set_cursor_direction (GtkTextLayout *layout,
if (direction != layout->cursor_direction) if (direction != layout->cursor_direction)
{ {
layout->cursor_direction = direction; layout->cursor_direction = direction;
gtk_text_layout_invalidate_cursor_line (layout); gtk_text_layout_invalidate_cursor_line (layout, TRUE);
} }
} }
@ -430,7 +436,7 @@ gtk_text_layout_set_keyboard_direction (GtkTextLayout *layout,
if (keyboard_dir != layout->keyboard_direction) if (keyboard_dir != layout->keyboard_direction)
{ {
layout->keyboard_direction = keyboard_dir; layout->keyboard_direction = keyboard_dir;
gtk_text_layout_invalidate_cursor_line (layout); gtk_text_layout_invalidate_cursor_line (layout, TRUE);
} }
} }
@ -498,7 +504,7 @@ gtk_text_layout_set_cursor_visible (GtkTextLayout *layout,
gtk_text_layout_get_line_yrange (layout, &iter, &y, &height); gtk_text_layout_get_line_yrange (layout, &iter, &y, &height);
gtk_text_layout_emit_changed (layout, y, height, height); gtk_text_layout_emit_changed (layout, y, height, height);
gtk_text_layout_invalidate_cache (layout, _gtk_text_iter_get_text_line (&iter)); gtk_text_layout_invalidate_cache (layout, _gtk_text_iter_get_text_line (&iter), TRUE);
} }
} }
@ -560,7 +566,7 @@ gtk_text_layout_set_preedit_string (GtkTextLayout *layout,
layout->preedit_cursor = 0; layout->preedit_cursor = 0;
} }
gtk_text_layout_invalidate_cursor_line (layout); gtk_text_layout_invalidate_cursor_line (layout, FALSE);
} }
void void
@ -592,11 +598,12 @@ gtk_text_layout_emit_changed (GtkTextLayout *layout,
g_signal_emit (layout, signals[CHANGED], 0, y, old_height, new_height); g_signal_emit (layout, signals[CHANGED], 0, y, old_height, new_height);
} }
void static void
gtk_text_layout_changed (GtkTextLayout *layout, text_layout_changed (GtkTextLayout *layout,
gint y, gint y,
gint old_height, gint old_height,
gint new_height) gint new_height,
gboolean cursors_only)
{ {
/* Check if the range intersects our cached line display, /* Check if the range intersects our cached line display,
* and invalidate the cached line if so. * and invalidate the cached line if so.
@ -609,12 +616,30 @@ gtk_text_layout_changed (GtkTextLayout *layout,
gint cache_height = layout->one_display_cache->height; gint cache_height = layout->one_display_cache->height;
if (cache_y + cache_height > y && cache_y < y + old_height) if (cache_y + cache_height > y && cache_y < y + old_height)
gtk_text_layout_invalidate_cache (layout, line); gtk_text_layout_invalidate_cache (layout, line, cursors_only);
} }
gtk_text_layout_emit_changed (layout, y, old_height, new_height); gtk_text_layout_emit_changed (layout, y, old_height, new_height);
} }
void
gtk_text_layout_changed (GtkTextLayout *layout,
gint y,
gint old_height,
gint new_height)
{
text_layout_changed (layout, y, old_height, new_height, FALSE);
}
void
gtk_text_layout_cursors_changed (GtkTextLayout *layout,
gint y,
gint old_height,
gint new_height)
{
text_layout_changed (layout, y, old_height, new_height, TRUE);
}
void void
gtk_text_layout_free_line_data (GtkTextLayout *layout, gtk_text_layout_free_line_data (GtkTextLayout *layout,
GtkTextLine *line, GtkTextLine *line,
@ -633,6 +658,15 @@ gtk_text_layout_invalidate (GtkTextLayout *layout,
(layout, start_index, end_index); (layout, start_index, end_index);
} }
void
gtk_text_layout_invalidate_cursors (GtkTextLayout *layout,
const GtkTextIter *start_index,
const GtkTextIter *end_index)
{
(* GTK_TEXT_LAYOUT_GET_CLASS (layout)->invalidate_cursors)
(layout, start_index, end_index);
}
GtkTextLineData* GtkTextLineData*
gtk_text_layout_wrap (GtkTextLayout *layout, gtk_text_layout_wrap (GtkTextLayout *layout,
GtkTextLine *line, GtkTextLine *line,
@ -748,20 +782,33 @@ gtk_text_layout_invalidate_all (GtkTextLayout *layout)
static void static void
gtk_text_layout_invalidate_cache (GtkTextLayout *layout, gtk_text_layout_invalidate_cache (GtkTextLayout *layout,
GtkTextLine *line) GtkTextLine *line,
gboolean cursors_only)
{ {
if (layout->one_display_cache && line == layout->one_display_cache->line) if (layout->one_display_cache && line == layout->one_display_cache->line)
{ {
GtkTextLineDisplay *tmp_display = layout->one_display_cache; GtkTextLineDisplay *display = layout->one_display_cache;
layout->one_display_cache = NULL;
gtk_text_layout_free_line_display (layout, tmp_display); if (cursors_only)
{
g_slist_foreach (display->cursors, (GFunc)g_free, NULL);
g_slist_free (display->cursors);
display->cursors = NULL;
display->cursors_invalid = TRUE;
}
else
{
layout->one_display_cache = NULL;
gtk_text_layout_free_line_display (layout, display);
}
} }
} }
/* Now invalidate the paragraph containing the cursor /* Now invalidate the paragraph containing the cursor
*/ */
static void static void
gtk_text_layout_invalidate_cursor_line (GtkTextLayout *layout) gtk_text_layout_invalidate_cursor_line (GtkTextLayout *layout,
gboolean cursors_only)
{ {
GtkTextLayoutPrivate *priv = GTK_TEXT_LAYOUT_GET_PRIVATE (layout); GtkTextLayoutPrivate *priv = GTK_TEXT_LAYOUT_GET_PRIVATE (layout);
GtkTextLineData *line_data; GtkTextLineData *line_data;
@ -772,8 +819,14 @@ gtk_text_layout_invalidate_cursor_line (GtkTextLayout *layout)
line_data = _gtk_text_line_get_data (priv->cursor_line, layout); line_data = _gtk_text_line_get_data (priv->cursor_line, layout);
if (line_data) if (line_data)
{ {
gtk_text_layout_invalidate_cache (layout, priv->cursor_line); if (cursors_only)
_gtk_text_line_invalidate_wrap (priv->cursor_line, line_data); gtk_text_layout_invalidate_cache (layout, priv->cursor_line, TRUE);
else
{
gtk_text_layout_invalidate_cache (layout, priv->cursor_line, FALSE);
_gtk_text_line_invalidate_wrap (priv->cursor_line, line_data);
}
gtk_text_layout_invalidated (layout); gtk_text_layout_invalidated (layout);
} }
} }
@ -820,7 +873,7 @@ gtk_text_layout_real_invalidate (GtkTextLayout *layout,
{ {
GtkTextLineData *line_data = _gtk_text_line_get_data (line, layout); GtkTextLineData *line_data = _gtk_text_line_get_data (line, layout);
gtk_text_layout_invalidate_cache (layout, line); gtk_text_layout_invalidate_cache (layout, line, FALSE);
if (line_data) if (line_data)
_gtk_text_line_invalidate_wrap (line, line_data); _gtk_text_line_invalidate_wrap (line, line_data);
@ -834,12 +887,48 @@ gtk_text_layout_real_invalidate (GtkTextLayout *layout,
gtk_text_layout_invalidated (layout); gtk_text_layout_invalidated (layout);
} }
static void
gtk_text_layout_real_invalidate_cursors (GtkTextLayout *layout,
const GtkTextIter *start,
const GtkTextIter *end)
{
/* Check if the range intersects our cached line display,
* and invalidate the cached line if so.
*/
if (layout->one_display_cache)
{
GtkTextIter line_start, line_end;
GtkTextLine *line = layout->one_display_cache->line;
_gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
&line_start, line, 0);
line_end = line_start;
if (!gtk_text_iter_ends_line (&line_end))
gtk_text_iter_forward_to_line_end (&line_end);
if (gtk_text_iter_compare (start, end) > 0)
{
const GtkTextIter *tmp = start;
start = end;
end = tmp;
}
if (gtk_text_iter_compare (&line_start, end) <= 0 &&
gtk_text_iter_compare (start, &line_end) <= 0)
{
gtk_text_layout_invalidate_cache (layout, line, TRUE);
}
}
gtk_text_layout_invalidated (layout);
}
static void static void
gtk_text_layout_real_free_line_data (GtkTextLayout *layout, gtk_text_layout_real_free_line_data (GtkTextLayout *layout,
GtkTextLine *line, GtkTextLine *line,
GtkTextLineData *line_data) GtkTextLineData *line_data)
{ {
gtk_text_layout_invalidate_cache (layout, line); gtk_text_layout_invalidate_cache (layout, line, FALSE);
g_free (line_data); g_free (line_data);
} }
@ -1789,6 +1878,112 @@ add_preedit_attrs (GtkTextLayout *layout,
pango_attr_iterator_destroy (iter); pango_attr_iterator_destroy (iter);
} }
/* Iterate over the line and fill in display->cursors.
* It's a stripped copy of gtk_text_layout_get_line_display() */
static void
update_text_display_cursors (GtkTextLayout *layout,
GtkTextLine *line,
GtkTextLineDisplay *display)
{
GtkTextLineSegment *seg;
GtkTextIter iter;
gint layout_byte_offset, buffer_byte_offset;
GSList *cursor_byte_offsets = NULL;
GSList *cursor_segs = NULL;
GSList *tmp_list1, *tmp_list2;
if (!display->cursors_invalid)
return;
display->cursors_invalid = FALSE;
_gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
&iter, line, 0);
/* Special-case optimization for completely
* invisible lines; makes it faster to deal
* with sequences of invisible lines.
*/
if (totally_invisible_line (layout, line, &iter))
return;
/* Iterate over segments */
layout_byte_offset = 0; /* position in the 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);
while (seg != NULL)
{
/* Displayable segments */
if (seg->type == &gtk_text_char_type ||
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);
if (!_gtk_text_btree_char_is_invisible (&iter))
layout_byte_offset += seg->byte_count;
buffer_byte_offset += seg->byte_count;
}
/* Marks */
else if (seg->type == &gtk_text_right_mark_type ||
seg->type == &gtk_text_left_mark_type)
{
gint cursor_offset = 0;
/* At the insertion point, add the preedit string, if any */
if (_gtk_text_btree_mark_is_insert (_gtk_text_buffer_get_btree (layout->buffer),
seg->body.mark.obj))
{
display->insert_index = layout_byte_offset;
if (layout->preedit_len > 0)
{
layout_byte_offset += layout->preedit_len;
/* DO NOT increment the buffer byte offset for preedit */
cursor_offset = layout->preedit_cursor - layout->preedit_len;
}
}
/* Display visible marks */
if (seg->body.mark.visible)
{
cursor_byte_offsets = g_slist_prepend (cursor_byte_offsets,
GINT_TO_POINTER (layout_byte_offset + cursor_offset));
cursor_segs = g_slist_prepend (cursor_segs, seg);
}
}
/* Toggles */
else if (seg->type == &gtk_text_toggle_on_type ||
seg->type == &gtk_text_toggle_off_type)
{
}
else
g_error ("Unknown segment type: %s", seg->type->name);
seg = seg->next;
}
tmp_list1 = cursor_byte_offsets;
tmp_list2 = cursor_segs;
while (tmp_list1)
{
add_cursor (layout, display, tmp_list2->data,
GPOINTER_TO_INT (tmp_list1->data));
tmp_list1 = tmp_list1->next;
tmp_list2 = tmp_list2->next;
}
g_slist_free (cursor_byte_offsets);
g_slist_free (cursor_segs);
}
GtkTextLineDisplay * GtkTextLineDisplay *
gtk_text_layout_get_line_display (GtkTextLayout *layout, gtk_text_layout_get_line_display (GtkTextLayout *layout,
GtkTextLine *line, GtkTextLine *line,
@ -1816,7 +2011,11 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
{ {
if (line == layout->one_display_cache->line && if (line == layout->one_display_cache->line &&
(size_only || !layout->one_display_cache->size_only)) (size_only || !layout->one_display_cache->size_only))
return layout->one_display_cache; {
if (!size_only)
update_text_display_cursors (layout, line, layout->one_display_cache);
return layout->one_display_cache;
}
else else
{ {
GtkTextLineDisplay *tmp_display = layout->one_display_cache; GtkTextLineDisplay *tmp_display = layout->one_display_cache;
@ -1825,6 +2024,8 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
} }
} }
DV (g_print ("creating one line display cache (%s)\n", G_STRLOC));
display = g_new0 (GtkTextLineDisplay, 1); display = g_new0 (GtkTextLineDisplay, 1);
display->size_only = size_only; display->size_only = size_only;

14
gtk/gtktextlayout.h
View File

@ -209,11 +209,14 @@ struct _GtkTextLayoutClass
gint x, gint x,
gint y); gint y);
void (*invalidate_cursors) (GtkTextLayout *layout,
const GtkTextIter *start,
const GtkTextIter *end);
/* Padding for future expansion */ /* Padding for future expansion */
void (*_gtk_reserved1) (void); void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void); void (*_gtk_reserved2) (void);
void (*_gtk_reserved3) (void); void (*_gtk_reserved3) (void);
void (*_gtk_reserved4) (void);
}; };
struct _GtkTextAttrAppearance struct _GtkTextAttrAppearance
@ -254,6 +257,8 @@ struct _GtkTextLineDisplay
GtkTextLine *line; GtkTextLine *line;
GdkColor *pg_bg_color; GdkColor *pg_bg_color;
guint cursors_invalid : 1;
}; };
extern PangoAttrType gtk_text_attr_appearance_type; extern PangoAttrType gtk_text_attr_appearance_type;
@ -327,6 +332,9 @@ void gtk_text_layout_get_iter_at_position (GtkTextLayout *layout,
void gtk_text_layout_invalidate (GtkTextLayout *layout, void gtk_text_layout_invalidate (GtkTextLayout *layout,
const GtkTextIter *start, const GtkTextIter *start,
const GtkTextIter *end); const GtkTextIter *end);
void gtk_text_layout_invalidate_cursors(GtkTextLayout *layout,
const GtkTextIter *start,
const GtkTextIter *end);
void gtk_text_layout_free_line_data (GtkTextLayout *layout, void gtk_text_layout_free_line_data (GtkTextLayout *layout,
GtkTextLine *line, GtkTextLine *line,
GtkTextLineData *line_data); GtkTextLineData *line_data);
@ -353,6 +361,10 @@ void gtk_text_layout_changed (GtkTextLayout *layout,
gint y, gint y,
gint old_height, gint old_height,
gint new_height); gint new_height);
void gtk_text_layout_cursors_changed (GtkTextLayout *layout,
gint y,
gint old_height,
gint new_height);
void gtk_text_layout_get_iter_location (GtkTextLayout *layout, void gtk_text_layout_get_iter_location (GtkTextLayout *layout,
const GtkTextIter *iter, const GtkTextIter *iter,
GdkRectangle *rect); GdkRectangle *rect);