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/*
* Copyright © 2008 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author: Carl D. Worth <cworth@cworth.org>
*/
/* Bug history:
*
* 2008-05-23: Caolan McNamara noticed a bug in OpenOffice.org where,
* when using a very large font, space would be left for a
* glyph but it would actually be rendered in the wrong
* place. He wrote a minimal test case and posted the bug
* here:
*
* corrupt glyph positions with large font
* https://bugzilla.redhat.com/show_bug.cgi?id=448104
*
* 2008-05-23: Carl Worth wrote this test for the cairo test suite to
* exercise the bug.
*/
#include "cairo-test.h"
#define WIDTH 800
#define HEIGHT 800
#define TEXT_SIZE 10000
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
/* paint white so we don't need separate ref images for
* RGB24 and ARGB32 */
cairo_set_source_rgb (cr, 1., 1., 1.);
cairo_paint (cr);
cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size (cr, TEXT_SIZE);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_move_to (cr, -TEXT_SIZE / 2, TEXT_SIZE / 2);
cairo_show_text (cr, "xW");
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (large_font,
"Draws a very large font to exercise a glyph-positioning bug",
"stress, font", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, draw)
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