| /* |
| * 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) |
| |
