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/*
* Copyright 2008 Chris Wilson
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Chris Wilson not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Chris Wilson makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairo-test.h"
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const char *text =
"This needs to be a very long string, wider than the surface, and yet wider."
"Ideally it should overflow the stack buffers, but do you really want to read "
"a message that long. No. So we compromise with around 300 glyphs that is "
"long enough to trigger the conditions as stated in "
"http://lists.cairographics.org/archives/cairo/2008-December/015976.html. "
"Happy now?";
cairo_text_extents_t extents;
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_paint (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_set_font_size (cr, 16);
cairo_text_extents (cr, text, &extents);
cairo_move_to (cr, -extents.width/2, 18);
cairo_show_text (cr, text);
/* XXX we should exercise cairo_show_text_glyphs() as well,
* and CAIRO_TEXT_CLUSTER_BACKWARDS
*/
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (culled_glyphs,
"Tests culling of glyphs and text clusters",
"glyphs", /* keywords */
NULL, /* requirements */
20, 20,
NULL, draw)
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