/* * Copyright © 2005 Red Hat, Inc. * 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 */ #include "cairo-test.h" #define LINE_WIDTH 10. #define SIZE (5 * LINE_WIDTH) #define PAD (2 * LINE_WIDTH) static cairo_test_draw_function_t draw; cairo_test_t test = { "caps-joins-alpha", "Test caps and joins with some source alpha", 3 * (PAD + SIZE) + PAD, PAD + SIZE + PAD, draw }; static void make_path (cairo_t *cr) { cairo_move_to (cr, 0., 0.); cairo_rel_line_to (cr, 0., SIZE); cairo_rel_line_to (cr, SIZE, 0.); cairo_close_path (cr); cairo_move_to (cr, 2 * LINE_WIDTH, 0.); cairo_rel_line_to (cr, 3 * LINE_WIDTH, 0.); cairo_rel_line_to (cr, 0., 3 * LINE_WIDTH); } static cairo_test_status_t draw (cairo_t *cr, int width, int height) { /* First draw a checkered background */ cairo_test_paint_checkered (cr); /* Then draw the original caps-joins test but with a bit of alphs thrown in. */ cairo_set_line_width (cr, LINE_WIDTH); cairo_set_source_rgba (cr, 1.0, 0.0, 0.0, 0.5); /* 50% red */ cairo_translate (cr, PAD, PAD); make_path (cr); cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); cairo_stroke (cr); cairo_set_source_rgba (cr, 0.0, 1.0, 0.0, 0.5); /* 50% green */ cairo_translate (cr, SIZE + PAD, 0.); make_path (cr); cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); cairo_stroke (cr); cairo_set_source_rgba (cr, 0.0, 0.0, 1.0, 0.5); /* 50% blue */ cairo_translate (cr, SIZE + PAD, 0.); make_path (cr); cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); cairo_stroke (cr); return CAIRO_TEST_SUCCESS; } int main (void) { return cairo_test (&test); }