/* * Copyright © 2006 Red Hat, Inc. * * 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 * Red Hat, Inc. not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior * permission. Red Hat, Inc. makes no representations about the * suitability of this software for any purpose. It is provided "as * is" without express or implied warranty. * * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org> */ #include <stdlib.h> #include "cairo-test.h" static cairo_test_draw_function_t draw; static cairo_test_status_t draw (cairo_t *cr, int width, int height) { cairo_path_t *path; /* We draw in the default black, so paint white first. */ cairo_save (cr); cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ cairo_paint (cr); cairo_restore (cr); /* This curious approach for drawing a circle (starting with a * closed arc) exercises a bug in which the "last move point" was * not being set so the close_path closes to (0,0). */ cairo_arc (cr, 8, 8, 4, 0, M_PI); cairo_close_path (cr); cairo_arc (cr, 8, 8, 4, M_PI, 2 * M_PI); cairo_fill (cr); cairo_translate (cr, 16, 0); /* Here a curve immediately after a close_to will begin from (0,0) * when the path is obtained with cairo_copy_path_flat. */ cairo_move_to (cr, 8, 4); cairo_arc_negative (cr, 8, 8, 4, 3 * M_PI / 2.0, M_PI / 2.0); cairo_close_path (cr); cairo_curve_to (cr, 12, 4, 12, 12, 8, 12); path = cairo_copy_path_flat (cr); cairo_new_path (cr); cairo_append_path (cr, path); cairo_path_destroy (path); cairo_fill (cr); return CAIRO_TEST_SUCCESS; } CAIRO_TEST (close_path, "Test some corner cases related to cairo_close_path", "path", /* keywords */ NULL, /* requirements */ 32, 16, NULL, draw)