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gtk/tests/testtextbuffer.c
Paolo Borelli f58c7f1ae8 handle the case of \r and \n split across lines. Bug #337022. add unit 
2006-04-05  Paolo Borelli  <pborelli@katamail.com>

	* gtk/gtktextiter.c (gtk_text_iter_ends_line): handle the case of \r
	and \n split across lines. Bug #337022.
	* tests/testtextbuffer.c: add unit test.
2006-04-05 18:30:46 +00:00

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/* testtextbuffer.c -- Simplistic test suite
* Copyright (C) 2000 Red Hat, Inc
* Author: Havoc Pennington
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>
#include "../gtk/gtktexttypes.h" /* Private header, for UNKNOWN_CHAR */
static void
gtk_text_iter_spew (const GtkTextIter *iter, const gchar *desc)
{
g_print (" %20s: line %d / char %d / line char %d / line byte %d\n",
desc,
gtk_text_iter_get_line (iter),
gtk_text_iter_get_offset (iter),
gtk_text_iter_get_line_offset (iter),
gtk_text_iter_get_line_index (iter));
}
static void fill_buffer (GtkTextBuffer *buffer);
static void run_tests (GtkTextBuffer *buffer);
static void check_get_set_text (GtkTextBuffer *buffer,
const char *str);
static void line_separator_tests (void);
static void logical_motion_tests (void);
int
main (int argc, char** argv)
{
GtkTextBuffer *buffer;
int n;
gunichar ch;
GtkTextIter start, end;
gtk_init (&argc, &argv);
/* Check UTF8 unknown char thing */
g_assert (g_utf8_strlen (gtk_text_unknown_char_utf8, 3) == 1);
ch = g_utf8_get_char (gtk_text_unknown_char_utf8);
g_assert (ch == GTK_TEXT_UNKNOWN_CHAR);
/* First, we turn on btree debugging. */
gtk_debug_flags |= GTK_DEBUG_TEXT;
/* Check some line separator stuff */
line_separator_tests ();
/* Check log attr motion */
logical_motion_tests ();
/* Create a buffer */
buffer = gtk_text_buffer_new (NULL);
/* Check that buffer starts with one empty line and zero chars */
n = gtk_text_buffer_get_line_count (buffer);
if (n != 1)
g_error ("%d lines, expected 1", n);
n = gtk_text_buffer_get_char_count (buffer);
if (n != 0)
g_error ("%d chars, expected 0", n);
/* empty first line contains 0 chars */
gtk_text_buffer_get_start_iter (buffer, &start);
n = gtk_text_iter_get_chars_in_line (&start);
if (n != 0)
g_error ("%d chars in first line, expected 0", n);
n = gtk_text_iter_get_bytes_in_line (&start);
if (n != 0)
g_error ("%d bytes in first line, expected 0", n);
/* Run gruesome alien test suite on buffer */
run_tests (buffer);
/* Check set/get text */
check_get_set_text (buffer, "Hello");
check_get_set_text (buffer, "Hello\n");
check_get_set_text (buffer, "Hello\r\n");
check_get_set_text (buffer, "Hello\r");
check_get_set_text (buffer, "Hello\nBar\nFoo");
check_get_set_text (buffer, "Hello\nBar\nFoo\n");
g_print ("get/set tests passed.\n");
/* Put stuff in the buffer */
fill_buffer (buffer);
/* Subject stuff-bloated buffer to further torment */
run_tests (buffer);
/* Delete all stuff from the buffer */
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_delete (buffer, &start, &end);
/* Check buffer for emptiness (note that a single
empty line always remains in the buffer) */
n = gtk_text_buffer_get_line_count (buffer);
if (n != 1)
g_error ("%d lines, expected 1", n);
n = gtk_text_buffer_get_char_count (buffer);
if (n != 0)
g_error ("%d chars, expected 0", n);
run_tests (buffer);
gtk_text_buffer_set_text (buffer, "adcdef", -1);
gtk_text_buffer_get_iter_at_offset (buffer, &start, 1);
gtk_text_buffer_get_iter_at_offset (buffer, &end, 3);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_blue", &start, &end);
run_tests (buffer);
g_object_unref (buffer);
g_print ("All tests passed.\n");
return 0;
}
static void
check_get_set_text (GtkTextBuffer *buffer,
const char *str)
{
GtkTextIter start, end, iter;
char *text;
int n;
gtk_text_buffer_set_text (buffer, str, -1);
if (gtk_text_buffer_get_char_count (buffer) != g_utf8_strlen (str, -1))
g_error ("Wrong number of chars (%d not %d)",
gtk_text_buffer_get_char_count (buffer),
(int) g_utf8_strlen (str, -1));
gtk_text_buffer_get_bounds (buffer, &start, &end);
text = gtk_text_buffer_get_text (buffer, &start, &end, TRUE);
if (strcmp (text, str) != 0)
g_error ("Got '%s' as buffer contents", text);
g_free (text);
/* line char counts */
iter = start;
n = 0;
do
{
n += gtk_text_iter_get_chars_in_line (&iter);
}
while (gtk_text_iter_forward_line (&iter));
if (n != gtk_text_buffer_get_char_count (buffer))
g_error ("Sum of chars in lines is %d but buffer char count is %d",
n, gtk_text_buffer_get_char_count (buffer));
/* line byte counts */
iter = start;
n = 0;
do
{
n += gtk_text_iter_get_bytes_in_line (&iter);
}
while (gtk_text_iter_forward_line (&iter));
if (n != strlen (str))
g_error ("Sum of chars in lines is %d but buffer byte count is %d",
n, (int) strlen (str));
gtk_text_buffer_set_text (buffer, "", -1);
n = gtk_text_buffer_get_line_count (buffer);
if (n != 1)
g_error ("%d lines, expected 1", n);
n = gtk_text_buffer_get_char_count (buffer);
if (n != 0)
g_error ("%d chars, expected 0", n);
}
static gint
count_toggles_at_iter (GtkTextIter *iter,
GtkTextTag *of_tag)
{
GSList *tags;
GSList *tmp;
gint count = 0;
/* get toggle-ons and toggle-offs */
tags = gtk_text_iter_get_toggled_tags (iter, TRUE);
tags = g_slist_concat (tags,
gtk_text_iter_get_toggled_tags (iter, FALSE));
tmp = tags;
while (tmp != NULL)
{
if (of_tag == NULL)
++count;
else if (of_tag == tmp->data)
++count;
tmp = g_slist_next (tmp);
}
g_slist_free (tags);
return count;
}
static gint
count_toggles_in_range_by_char (GtkTextBuffer *buffer,
GtkTextTag *of_tag,
const GtkTextIter *start,
const GtkTextIter *end)
{
GtkTextIter iter;
gint count = 0;
iter = *start;
do
{
count += count_toggles_at_iter (&iter, of_tag);
if (!gtk_text_iter_forward_char (&iter))
{
/* end iterator */
count += count_toggles_at_iter (&iter, of_tag);
break;
}
}
while (gtk_text_iter_compare (&iter, end) <= 0);
return count;
}
static gint
count_toggles_in_buffer (GtkTextBuffer *buffer,
GtkTextTag *of_tag)
{
GtkTextIter start, end;
gtk_text_buffer_get_bounds (buffer, &start, &end);
return count_toggles_in_range_by_char (buffer, of_tag, &start, &end);
}
static void
check_specific_tag_in_range (GtkTextBuffer *buffer,
const gchar *tag_name,
const GtkTextIter *start,
const GtkTextIter *end)
{
GtkTextIter iter;
GtkTextTag *tag;
gboolean state;
gint count;
gint buffer_count;
gint last_offset;
if (gtk_text_iter_compare (start, end) > 0)
{
g_print (" (inverted range for checking tags, skipping)\n");
return;
}
tag = gtk_text_tag_table_lookup (gtk_text_buffer_get_tag_table (buffer),
tag_name);
buffer_count = count_toggles_in_range_by_char (buffer, tag, start, end);
state = FALSE;
count = 0;
last_offset = -1;
iter = *start;
if (gtk_text_iter_toggles_tag (&iter, tag) ||
gtk_text_iter_forward_to_tag_toggle (&iter, tag))
{
do
{
gint this_offset;
++count;
this_offset = gtk_text_iter_get_offset (&iter);
if (this_offset <= last_offset)
g_error ("forward_to_tag_toggle moved in wrong direction");
last_offset = this_offset;
if (gtk_text_iter_begins_tag (&iter, tag))
{
if (state)
g_error ("Tag %p is already on, and was toggled on?", tag);
state = TRUE;
}
else if (gtk_text_iter_ends_tag (&iter, tag))
{
if (!state)
g_error ("Tag %p toggled off, but wasn't toggled on?", tag);
state = FALSE;
}
else
g_error ("forward_to_tag_toggle went to a location without a toggle");
}
while (gtk_text_iter_forward_to_tag_toggle (&iter, tag) &&
gtk_text_iter_compare (&iter, end) <= 0);
}
if (count != buffer_count)
g_error ("Counted %d tags iterating by char, %d iterating forward by tag toggle\n",
buffer_count, count);
state = FALSE;
count = 0;
iter = *end;
last_offset = gtk_text_iter_get_offset (&iter);
if (gtk_text_iter_toggles_tag (&iter, tag) ||
gtk_text_iter_backward_to_tag_toggle (&iter, tag))
{
do
{
gint this_offset;
++count;
this_offset = gtk_text_iter_get_offset (&iter);
if (this_offset >= last_offset)
g_error ("backward_to_tag_toggle moved in wrong direction");
last_offset = this_offset;
if (gtk_text_iter_begins_tag (&iter, tag))
{
if (!state)
g_error ("Tag %p wasn't on when we got to the on toggle going backward?", tag);
state = FALSE;
}
else if (gtk_text_iter_ends_tag (&iter, tag))
{
if (state)
g_error ("Tag %p off toggle, but we were already inside a tag?", tag);
state = TRUE;
}
else
g_error ("backward_to_tag_toggle went to a location without a toggle");
}
while (gtk_text_iter_backward_to_tag_toggle (&iter, tag) &&
gtk_text_iter_compare (&iter, start) >= 0);
}
if (count != buffer_count)
g_error ("Counted %d tags iterating by char, %d iterating backward by tag toggle\n",
buffer_count, count);
}
static void
check_specific_tag (GtkTextBuffer *buffer,
const gchar *tag_name)
{
GtkTextIter start, end;
gtk_text_buffer_get_bounds (buffer, &start, &end);
check_specific_tag_in_range (buffer, tag_name, &start, &end);
gtk_text_iter_forward_chars (&start, 2);
gtk_text_iter_backward_chars (&end, 2);
if (gtk_text_iter_compare (&start, &end) < 0)
check_specific_tag_in_range (buffer, tag_name, &start, &end);
}
static void
run_tests (GtkTextBuffer *buffer)
{
GtkTextIter iter;
GtkTextIter start;
GtkTextIter end;
GtkTextIter mark;
gint i, j;
gint num_chars;
GtkTextMark *bar_mark;
GtkTextTag *tag;
GHashTable *tag_states;
gint count;
gint buffer_count;
gtk_text_buffer_get_bounds (buffer, &start, &end);
/* Check that walking the tree via chars and via iterators produces
* the same number of indexable locations.
*/
num_chars = gtk_text_buffer_get_char_count (buffer);
iter = start;
bar_mark = gtk_text_buffer_create_mark (buffer, "bar", &iter, FALSE);
i = 0;
while (i < num_chars)
{
GtkTextIter current;
GtkTextMark *foo_mark;
gtk_text_buffer_get_iter_at_offset (buffer, &current, i);
if (!gtk_text_iter_equal (&iter, &current))
{
g_error ("get_char_index didn't return current iter");
}
j = gtk_text_iter_get_offset (&iter);
if (i != j)
{
g_error ("iter converted to %d not %d", j, i);
}
/* get/set mark */
gtk_text_buffer_get_iter_at_mark (buffer, &mark, bar_mark);
if (!gtk_text_iter_equal (&iter, &mark))
{
gtk_text_iter_spew (&iter, "iter");
gtk_text_iter_spew (&mark, "mark");
g_error ("Mark not moved to the right place.");
}
foo_mark = gtk_text_buffer_create_mark (buffer, "foo", &iter, FALSE);
gtk_text_buffer_get_iter_at_mark (buffer, &mark, foo_mark);
gtk_text_buffer_delete_mark (buffer, foo_mark);
if (!gtk_text_iter_equal (&iter, &mark))
{
gtk_text_iter_spew (&iter, "iter");
gtk_text_iter_spew (&mark, "mark");
g_error ("Mark not created in the right place.");
}
if (gtk_text_iter_is_end (&iter))
g_error ("iterators ran out before chars (offset %d of %d)",
i, num_chars);
gtk_text_iter_forward_char (&iter);
gtk_text_buffer_move_mark (buffer, bar_mark, &iter);
++i;
}
if (!gtk_text_iter_equal (&iter, &end))
g_error ("Iterating over all chars didn't end with the end iter");
/* Do the tree-walk backward
*/
num_chars = gtk_text_buffer_get_char_count (buffer);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, -1);
gtk_text_buffer_move_mark (buffer, bar_mark, &iter);
i = num_chars;
if (!gtk_text_iter_equal (&iter, &end))
g_error ("iter at char -1 is not equal to the end iterator");
while (i >= 0)
{
GtkTextIter current;
GtkTextMark *foo_mark;
gtk_text_buffer_get_iter_at_offset (buffer, &current, i);
if (!gtk_text_iter_equal (&iter, &current))
{
g_error ("get_char_index didn't return current iter while going backward");
}
j = gtk_text_iter_get_offset (&iter);
if (i != j)
{
g_error ("going backward, iter converted to %d not %d", j, i);
}
/* get/set mark */
gtk_text_buffer_get_iter_at_mark (buffer, &mark, bar_mark);
if (!gtk_text_iter_equal (&iter, &mark))
{
gtk_text_iter_spew (&iter, "iter");
gtk_text_iter_spew (&mark, "mark");
g_error ("Mark not moved to the right place.");
}
foo_mark = gtk_text_buffer_create_mark (buffer, "foo", &iter, FALSE);
gtk_text_buffer_get_iter_at_mark (buffer, &mark, foo_mark);
gtk_text_buffer_delete_mark (buffer, foo_mark);
if (!gtk_text_iter_equal (&iter, &mark))
{
gtk_text_iter_spew (&iter, "iter");
gtk_text_iter_spew (&mark, "mark");
g_error ("Mark not created in the right place.");
}
if (i > 0)
{
if (!gtk_text_iter_backward_char (&iter))
g_error ("iterators ran out before char indexes");
gtk_text_buffer_move_mark (buffer, bar_mark, &iter);
}
else
{
if (gtk_text_iter_backward_char (&iter))
g_error ("went backward from 0?");
}
--i;
}
if (!gtk_text_iter_equal (&iter, &start))
g_error ("Iterating backward over all chars didn't end with the start iter");
/*
* Check that get_line_count returns the same number of lines
* as walking the tree by line
*/
i = 1; /* include current (first) line */
gtk_text_buffer_get_iter_at_line (buffer, &iter, 0);
while (gtk_text_iter_forward_line (&iter))
++i;
if (i != gtk_text_buffer_get_line_count (buffer))
g_error ("Counted %d lines, buffer has %d", i,
gtk_text_buffer_get_line_count (buffer));
/*
* Check that moving over tag toggles thinks about working.
*/
buffer_count = count_toggles_in_buffer (buffer, NULL);
tag_states = g_hash_table_new (NULL, NULL);
count = 0;
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
if (gtk_text_iter_toggles_tag (&iter, NULL) ||
gtk_text_iter_forward_to_tag_toggle (&iter, NULL))
{
do
{
GSList *tags;
GSList *tmp;
gboolean found_some = FALSE;
/* get toggled-on tags */
tags = gtk_text_iter_get_toggled_tags (&iter, TRUE);
if (tags)
found_some = TRUE;
tmp = tags;
while (tmp != NULL)
{
++count;
tag = tmp->data;
if (g_hash_table_lookup (tag_states, tag))
g_error ("Tag %p is already on, and was toggled on?", tag);
g_hash_table_insert (tag_states, tag, GINT_TO_POINTER (TRUE));
tmp = g_slist_next (tmp);
}
g_slist_free (tags);
/* get toggled-off tags */
tags = gtk_text_iter_get_toggled_tags (&iter, FALSE);
if (tags)
found_some = TRUE;
tmp = tags;
while (tmp != NULL)
{
++count;
tag = tmp->data;
if (!g_hash_table_lookup (tag_states, tag))
g_error ("Tag %p is already off, and was toggled off?", tag);
g_hash_table_remove (tag_states, tag);
tmp = g_slist_next (tmp);
}
g_slist_free (tags);
if (!found_some)
g_error ("No tags found going forward to tag toggle.");
}
while (gtk_text_iter_forward_to_tag_toggle (&iter, NULL));
}
g_hash_table_destroy (tag_states);
if (count != buffer_count)
g_error ("Counted %d tags iterating by char, %d iterating by tag toggle\n",
buffer_count, count);
/* Go backward; here TRUE in the hash means we saw
* an off toggle last.
*/
tag_states = g_hash_table_new (NULL, NULL);
count = 0;
gtk_text_buffer_get_end_iter (buffer, &iter);
if (gtk_text_iter_toggles_tag (&iter, NULL) ||
gtk_text_iter_backward_to_tag_toggle (&iter, NULL))
{
do
{
GSList *tags;
GSList *tmp;
gboolean found_some = FALSE;
/* get toggled-off tags */
tags = gtk_text_iter_get_toggled_tags (&iter, FALSE);
if (tags)
found_some = TRUE;
tmp = tags;
while (tmp != NULL)
{
++count;
tag = tmp->data;
if (g_hash_table_lookup (tag_states, tag))
g_error ("Tag %p has two off-toggles in a row?", tag);
g_hash_table_insert (tag_states, tag, GINT_TO_POINTER (TRUE));
tmp = g_slist_next (tmp);
}
g_slist_free (tags);
/* get toggled-on tags */
tags = gtk_text_iter_get_toggled_tags (&iter, TRUE);
if (tags)
found_some = TRUE;
tmp = tags;
while (tmp != NULL)
{
++count;
tag = tmp->data;
if (!g_hash_table_lookup (tag_states, tag))
g_error ("Tag %p was toggled on, but saw no off-toggle?", tag);
g_hash_table_remove (tag_states, tag);
tmp = g_slist_next (tmp);
}
g_slist_free (tags);
if (!found_some)
g_error ("No tags found going backward to tag toggle.");
}
while (gtk_text_iter_backward_to_tag_toggle (&iter, NULL));
}
g_hash_table_destroy (tag_states);
if (count != buffer_count)
g_error ("Counted %d tags iterating by char, %d iterating by tag toggle\n",
buffer_count, count);
check_specific_tag (buffer, "fg_red");
check_specific_tag (buffer, "bg_green");
check_specific_tag (buffer, "front_tag");
check_specific_tag (buffer, "center_tag");
check_specific_tag (buffer, "end_tag");
}
static const char *book_closed_xpm[] = {
"16 16 6 1",
" c None s None",
". c black",
"X c red",
"o c yellow",
"O c #808080",
"# c white",
" ",
" .. ",
" ..XX. ",
" ..XXXXX. ",
" ..XXXXXXXX. ",
".ooXXXXXXXXX. ",
"..ooXXXXXXXXX. ",
".X.ooXXXXXXXXX. ",
".XX.ooXXXXXX.. ",
" .XX.ooXXX..#O ",
" .XX.oo..##OO. ",
" .XX..##OO.. ",
" .X.#OO.. ",
" ..O.. ",
" .. ",
" "};
static void
fill_buffer (GtkTextBuffer *buffer)
{
GtkTextTag *tag;
GdkColor color, color2;
GtkTextIter iter;
GtkTextIter iter2;
GdkPixbuf *pixbuf;
int i;
color.red = color.green = 0;
color.blue = 0xffff;
color2.red = 0xfff;
color2.blue = 0x0;
color2.green = 0;
gtk_text_buffer_create_tag (buffer, "fg_blue",
"foreground_gdk", &color,
"background_gdk", &color2,
"font", "-*-courier-bold-r-*-*-30-*-*-*-*-*-*-*",
NULL);
color.blue = color.green = 0;
color.red = 0xffff;
gtk_text_buffer_create_tag (buffer, "fg_red",
"rise", -4,
"foreground_gdk", &color,
NULL);
color.blue = color.red = 0;
color.green = 0xffff;
gtk_text_buffer_create_tag (buffer, "bg_green",
"background_gdk", &color,
"font", "-*-courier-bold-r-*-*-10-*-*-*-*-*-*-*",
NULL);
pixbuf = gdk_pixbuf_new_from_xpm_data (book_closed_xpm);
g_assert (pixbuf != NULL);
i = 0;
while (i < 10)
{
gchar *str;
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_insert_pixbuf (buffer, &iter, pixbuf);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 1);
gtk_text_buffer_insert_pixbuf (buffer, &iter, pixbuf);
str = g_strdup_printf ("%d Hello World!\nwoo woo woo woo woo woo woo woo\n",
i);
gtk_text_buffer_insert (buffer, &iter, str, -1);
g_free (str);
gtk_text_buffer_insert (buffer, &iter,
"(Hello World!)\nfoo foo Hello this is some text we are using to text word wrap. It has punctuation! gee; blah - hmm, great.\nnew line\n\n"
/* This is UTF8 stuff, Emacs doesn't
really know how to display it */
"Spanish (Espa\303\261ol) \302\241Hola! / French (Fran\303\247ais) Bonjour, Salut / German (Deutsch S\303\274d) Gr\303\274\303\237 Gott (testing Latin-1 chars encoded in UTF8)\nThai (we can't display this, just making sure we don't crash) (\340\270\240\340\270\262\340\270\251\340\270\262\340\271\204\340\270\227\340\270\242) \340\270\252\340\270\247\340\270\261\340\270\252\340\270\224\340\270\265\340\270\204\340\270\243\340\270\261\340\270\232, \340\270\252\340\270\247\340\270\261\340\270\252\340\270\224\340\270\265\340\270\204\340\271\210\340\270\260\n",
-1);
gtk_text_buffer_insert_pixbuf (buffer, &iter, pixbuf);
gtk_text_buffer_insert_pixbuf (buffer, &iter, pixbuf);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 4);
gtk_text_buffer_insert_pixbuf (buffer, &iter, pixbuf);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 7);
gtk_text_buffer_insert_pixbuf (buffer, &iter, pixbuf);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 8);
gtk_text_buffer_insert_pixbuf (buffer, &iter, pixbuf);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter, 0, 8);
iter2 = iter;
gtk_text_iter_forward_chars (&iter2, 10);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_blue", &iter, &iter2);
gtk_text_iter_forward_chars (&iter, 7);
gtk_text_iter_forward_chars (&iter2, 10);
gtk_text_buffer_apply_tag_by_name (buffer, "bg_green", &iter, &iter2);
gtk_text_iter_forward_chars (&iter, 12);
gtk_text_iter_forward_chars (&iter2, 10);
gtk_text_buffer_apply_tag_by_name (buffer, "bg_green", &iter, &iter2);
gtk_text_iter_forward_chars (&iter, 10);
gtk_text_iter_forward_chars (&iter2, 15);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_red", &iter, &iter2);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_blue", &iter, &iter2);
gtk_text_iter_forward_chars (&iter, 20);
gtk_text_iter_forward_chars (&iter2, 20);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_red", &iter, &iter2);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_blue", &iter, &iter2);
gtk_text_iter_backward_chars (&iter, 25);
gtk_text_iter_forward_chars (&iter2, 5);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_red", &iter, &iter2);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_blue", &iter, &iter2);
gtk_text_iter_forward_chars (&iter, 15);
gtk_text_iter_backward_chars (&iter2, 10);
gtk_text_buffer_remove_tag_by_name (buffer, "fg_red", &iter, &iter2);
gtk_text_buffer_remove_tag_by_name (buffer, "fg_blue", &iter, &iter2);
++i;
}
/* Put in tags that are just at the beginning, and just near the end,
* and just near the middle.
*/
tag = gtk_text_buffer_create_tag (buffer, "front_tag", NULL);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 3);
gtk_text_buffer_get_iter_at_offset (buffer, &iter2, 300);
gtk_text_buffer_apply_tag (buffer, tag, &iter, &iter2);
tag = gtk_text_buffer_create_tag (buffer, "end_tag", NULL);
gtk_text_buffer_get_end_iter (buffer, &iter2);
gtk_text_iter_backward_chars (&iter2, 12);
iter = iter2;
gtk_text_iter_backward_chars (&iter, 157);
gtk_text_buffer_apply_tag (buffer, tag, &iter, &iter2);
tag = gtk_text_buffer_create_tag (buffer, "center_tag", NULL);
gtk_text_buffer_get_iter_at_offset (buffer, &iter,
gtk_text_buffer_get_char_count (buffer)/2);
gtk_text_iter_backward_chars (&iter, 37);
iter2 = iter;
gtk_text_iter_forward_chars (&iter2, 57);
gtk_text_buffer_apply_tag (buffer, tag, &iter, &iter2);
g_object_unref (pixbuf);
}
/*
* Line separator tests (initially to avoid regression on bugzilla #57428)
*/
static void
test_line_separation (const char* str,
gboolean expect_next_line,
gboolean expect_end_iter,
int expected_line_count,
int expected_line_break,
int expected_next_line_start)
{
GtkTextIter iter;
GtkTextBuffer* buffer;
gboolean on_next_line;
gboolean on_end_iter;
gint new_pos;
buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (buffer, str, -1);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, expected_line_break);
g_assert (gtk_text_iter_ends_line (&iter) || gtk_text_iter_is_end (&iter));
g_assert (gtk_text_buffer_get_line_count (buffer) == expected_line_count);
on_next_line = gtk_text_iter_forward_line (&iter);
g_assert (expect_next_line == on_next_line);
on_end_iter = gtk_text_iter_is_end (&iter);
g_assert (on_end_iter == expect_end_iter);
new_pos = gtk_text_iter_get_offset (&iter);
if (on_next_line)
g_assert (expected_next_line_start == new_pos);
++expected_line_break;
while (expected_line_break < expected_next_line_start)
{
gtk_text_buffer_get_iter_at_offset (buffer, &iter, expected_line_break);
g_assert (!gtk_text_iter_ends_line (&iter));
on_next_line = gtk_text_iter_forward_line (&iter);
g_assert (expect_next_line == on_next_line);
new_pos = gtk_text_iter_get_offset (&iter);
if (on_next_line)
g_assert (expected_next_line_start == new_pos);
++expected_line_break;
}
/* FIXME tests for backward line */
g_object_unref (buffer);
}
/* there are cases where \r and \n should not be treated like \r\n,
* originally bug #337022. */
static void
split_r_n_separators_test (void)
{
GtkTextBuffer *buffer;
GtkTextIter iter;
buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (buffer, "foo\ra\nbar\n", -1);
/* delete 'a' so that we have
1 foo\r
2 \n
3 bar\n
* and both \r and \n are line separators */
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 5);
gtk_text_buffer_backspace (buffer, &iter, TRUE, TRUE);
g_assert (gtk_text_iter_ends_line (&iter));
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 3);
g_assert (gtk_text_iter_ends_line (&iter));
}
static void
line_separator_tests (void)
{
char *str;
char buf[7] = { '\0', };
/* Only one character has type G_UNICODE_PARAGRAPH_SEPARATOR in
* Unicode 3.0; update this if that changes.
*/
#define PARAGRAPH_SEPARATOR 0x2029
test_line_separation ("line", FALSE, TRUE, 1, 4, 4);
test_line_separation ("line\r\n", FALSE, TRUE, 2, 4, 6);
test_line_separation ("line\r", FALSE, TRUE, 2, 4, 5);
test_line_separation ("line\n", FALSE, TRUE, 2, 4, 5);
test_line_separation ("line\rqw", TRUE, FALSE, 2, 4, 5);
test_line_separation ("line\nqw", TRUE, FALSE, 2, 4, 5);
test_line_separation ("line\r\nqw", TRUE, FALSE, 2, 4, 6);
g_unichar_to_utf8 (PARAGRAPH_SEPARATOR, buf);
str = g_strdup_printf ("line%s", buf);
test_line_separation (str, FALSE, TRUE, 2, 4, 5);
g_free (str);
str = g_strdup_printf ("line%sqw", buf);
test_line_separation (str, TRUE, FALSE, 2, 4, 5);
g_free (str);
split_r_n_separators_test ();
g_print ("Line separator tests passed\n");
}
static void
logical_motion_tests (void)
{
char *str;
char buf1[7] = { '\0', };
char buf2[7] = { '\0', };
char buf3[7] = { '\0', };
int expected[30];
int expected_steps;
int i;
GtkTextBuffer *buffer;
GtkTextIter iter;
buffer = gtk_text_buffer_new (NULL);
#define LEADING_JAMO 0x1111
#define VOWEL_JAMO 0x1167
#define TRAILING_JAMO 0x11B9
g_unichar_to_utf8 (LEADING_JAMO, buf1);
g_unichar_to_utf8 (VOWEL_JAMO, buf2);
g_unichar_to_utf8 (TRAILING_JAMO, buf3);
/* Build the string "abc<leading><vowel><trailing>def\r\nxyz" */
str = g_strconcat ("abc", buf1, buf2, buf3, "def\r\nxyz", NULL);
gtk_text_buffer_set_text (buffer, str, -1);
g_free (str);
/* Check cursor positions */
memset (expected, 0, sizeof (expected));
expected[0] = 0; /* before 'a' */
expected[1] = 1; /* before 'b' */
expected[2] = 2; /* before 'c' */
expected[3] = 3; /* before jamo */
expected[4] = 6; /* before 'd' */
expected[5] = 7; /* before 'e' */
expected[6] = 8; /* before 'f' */
expected[7] = 9; /* before '\r' */
expected[8] = 11; /* before 'x' */
expected[9] = 12; /* before 'y' */
expected[10] = 13; /* before 'z' */
expected[11] = 14; /* after 'z' (only matters going backward) */
expected_steps = 11;
gtk_text_buffer_get_start_iter (buffer, &iter);
i = 0;
do
{
int pos;
pos = gtk_text_iter_get_offset (&iter);
if (pos != expected[i])
{
g_error ("Cursor position %d, expected %d",
pos, expected[i]);
}
++i;
}
while (gtk_text_iter_forward_cursor_position (&iter));
if (!gtk_text_iter_is_end (&iter))
g_error ("Expected to stop at the end iterator\n");
if (!gtk_text_iter_is_cursor_position (&iter))
g_error ("Should be a cursor position before the end iterator");
if (i != expected_steps)
g_error ("Expected %d steps, there were actually %d\n", expected_steps, i);
i = expected_steps;
do
{
int pos;
pos = gtk_text_iter_get_offset (&iter);
if (pos != expected[i])
{
g_error ("Moving backward, cursor position %d, expected %d",
pos, expected[i]);
}
/* g_print ("%d = %d\n", pos, expected[i]); */
--i;
}
while (gtk_text_iter_backward_cursor_position (&iter));
if (i != -1)
g_error ("Expected %d steps, there were actually %d\n", expected_steps - i, i);
if (!gtk_text_iter_is_start (&iter))
g_error ("Expected to stop at the start iterator\n");
/* Check sentence boundaries */
gtk_text_buffer_set_text (buffer, "Hi.\nHi. \nHi! Hi. Hi? Hi.", -1);
memset (expected, 0, sizeof (expected));
expected[0] = 0; /* before first Hi */
expected[1] = 3; /* After first . */
expected[2] = 7; /* After second . */
expected[3] = 12; /* After ! */
expected[4] = 16; /* After third . */
expected[5] = 20; /* After ? */
expected_steps = 6;
gtk_text_buffer_get_start_iter (buffer, &iter);
i = 0;
do
{
int pos;
pos = gtk_text_iter_get_offset (&iter);
if (pos != expected[i])
{
g_error ("Sentence position %d, expected %d",
pos, expected[i]);
}
if (i != 0 &&
!gtk_text_iter_is_end (&iter) &&
!gtk_text_iter_ends_sentence (&iter))
g_error ("Iterator at %d should end a sentence", pos);
++i;
}
while (gtk_text_iter_forward_sentence_end (&iter));
if (i != expected_steps)
g_error ("Expected %d steps, there were actually %d\n", expected_steps, i);
if (!gtk_text_iter_is_end (&iter))
g_error ("Expected to stop at the end iterator\n");
gtk_text_buffer_set_text (buffer, "Hi.\nHi. \nHi! Hi. Hi? Hi.", -1);
memset (expected, 0, sizeof (expected));
expected[0] = 24;
expected[1] = 21;
expected[2] = 17;
expected[3] = 13;
expected[4] = 9;
expected[5] = 4;
expected[6] = 0;
expected_steps = 7;
gtk_text_buffer_get_end_iter (buffer, &iter);
i = 0;
do
{
int pos;
pos = gtk_text_iter_get_offset (&iter);
if (pos != expected[i])
{
g_error ("Sentence position %d, expected %d",
pos, expected[i]);
}
if (pos != 0 &&
!gtk_text_iter_is_end (&iter) &&
!gtk_text_iter_starts_sentence (&iter))
g_error ("Iterator at %d should start a sentence", pos);
++i;
}
while (gtk_text_iter_backward_sentence_start (&iter));
if (i != expected_steps)
g_error ("Expected %d steps, there were actually %d\n", expected_steps, i);
if (gtk_text_iter_get_offset (&iter) != 0)
g_error ("Expected to stop at the start iterator\n");
g_print ("Logical motion tests passed\n");
g_object_unref (buffer);
}
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