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