diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/caps-joins-alpha.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/caps-joins-alpha.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/caps-joins-alpha.c b/libs/cairo-1.16.0/test/caps-joins-alpha.c new file mode 100644 index 0000000..bbff44e --- /dev/null +++ b/libs/cairo-1.16.0/test/caps-joins-alpha.c @@ -0,0 +1,89 @@ +/* + * 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 <cworth@cworth.org> + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (5 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +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; +} + +CAIRO_TEST (caps_joins_alpha, + "Test caps and joins with some source alpha", + "stroke", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + PAD + SIZE + PAD, + NULL, draw) |