/* * Copyright © 2005 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: Owen Taylor <otaylor@redhat.com> */ #include <math.h> #include "cairo-test.h" #include <stdio.h> #define SIZE 12 static cairo_test_status_t draw (cairo_t *cr, int width, int height) { cairo_surface_t *source; cairo_t *cr2; source = cairo_surface_create_similar (cairo_get_group_target (cr), CAIRO_CONTENT_COLOR_ALPHA, SIZE, SIZE); cr2 = cairo_create (source); cairo_surface_destroy (source); /* Fill the source surface with green */ cairo_set_source_rgb (cr2, 0, 1, 0); cairo_paint (cr2); /* Draw a blue square in the middle of the source with clipping, * and leave the clip there. */ cairo_rectangle (cr2, SIZE / 4, SIZE / 4, SIZE / 2, SIZE / 2); cairo_clip (cr2); cairo_set_source_rgb (cr2, 0, 0, 1); cairo_paint (cr2); /* Fill the destination surface with solid red (should not appear * in final result) */ cairo_set_source_rgb (cr, 1, 0, 0); cairo_paint (cr); /* Now draw the source surface onto the destination surface */ cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); cairo_paint (cr); cairo_destroy (cr2); return CAIRO_TEST_SUCCESS; } CAIRO_TEST (source_clip, "Test that a source surface is not affected by a clip", "clip", /* keywords */ NULL, /* requirements */ SIZE, SIZE, NULL, draw)