| /* |
| * Copyright © 2007 Red Hat, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person |
| * obtaining a copy of this software and associated documentation |
| * files (the "Software"), to deal in the Software without |
| * restriction, including without limitation the rights to use, copy, |
| * modify, merge, publish, distribute, sublicense, and/or sell copies |
| * of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| * Author: Carl D. Worth <cworth@cworth.org> |
| */ |
| |
| #include "cairo-test.h" |
| |
| #define SIZE 40 |
| #define PAD 2 |
| #define WIDTH (PAD + SIZE + PAD) |
| #define HEIGHT WIDTH |
| |
| /* This test is designed to explore the interactions of "native" and |
| * "fallback" objects. For the ps surface, OVER with non-1.0 opacity |
| * will be a fallback while SOURCE will be native. For the pdf |
| * surface, it's the reverse where OVER is native while SOURCE is a |
| * fallback. */ |
| |
| static cairo_test_status_t |
| draw (cairo_t *cr, int width, int height) |
| { |
| cairo_translate (cr, PAD, PAD); |
| |
| /* A red triangle with SOURCE */ |
| cairo_move_to (cr, SIZE / 5, SIZE / 5); |
| cairo_rel_line_to (cr, SIZE / 2, 0); |
| cairo_rel_line_to (cr, -SIZE / 2, SIZE / 2); |
| cairo_close_path (cr); |
| |
| cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); |
| cairo_set_source_rgba (cr, 1., 0., 0., 0.5); /* 50% red */ |
| |
| cairo_fill (cr); |
| |
| /* A green circle with OVER */ |
| cairo_arc (cr, SIZE / 2, SIZE / 2, SIZE / 4, 0., 2. * M_PI); |
| |
| cairo_set_operator (cr, CAIRO_OPERATOR_OVER); |
| cairo_set_source_rgba (cr, 0., 1., 0., 0.5); /* 50% green */ |
| |
| cairo_fill (cr); |
| |
| /* Another red triangle with SOURCE */ |
| cairo_move_to (cr, SIZE / 2, SIZE / 2); |
| cairo_rel_line_to (cr, SIZE / 2, 0); |
| cairo_rel_line_to (cr, -SIZE / 2, SIZE / 2); |
| cairo_close_path (cr); |
| |
| cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); |
| cairo_set_source_rgba (cr, 1., 0., 0., 0.5); /* 50% red */ |
| |
| cairo_fill (cr); |
| |
| return CAIRO_TEST_SUCCESS; |
| } |
| |
| CAIRO_TEST (over_between_source, |
| "A simple test drawing a circle with OVER between two triangles drawn with SOURCE", |
| "operator", /* keywords */ |
| NULL, /* requirements */ |
| WIDTH, HEIGHT, |
| NULL, draw) |