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/*
* Copyright © 2008 Chris Wilson
*
* 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
* Chris Wilson not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Chris Wilson makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL CHRIS WILSON 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: Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairo-test.h"
#define LINE_WIDTH 10.
#define SIZE (5 * LINE_WIDTH)
#define PAD (3 * LINE_WIDTH)
static void
make_path (cairo_t *cr)
{
cairo_move_to (cr, 0, 0);
cairo_rel_curve_to (cr,
-SIZE/4, SIZE/3,
-SIZE/4, SIZE/3,
0, SIZE);
cairo_rel_curve_to (cr,
SIZE/3, -SIZE/4,
SIZE/3, -SIZE/4,
SIZE, 0);
cairo_close_path (cr);
cairo_move_to (cr, 5 * LINE_WIDTH, 3 * LINE_WIDTH);
cairo_rel_curve_to (cr,
0, -3 * LINE_WIDTH,
0, -3 * LINE_WIDTH,
-3 * LINE_WIDTH, -3 * LINE_WIDTH);
}
static void
draw_caps_joins (cairo_t *cr)
{
cairo_save (cr);
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_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_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);
cairo_restore (cr);
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
/* 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);
cairo_set_line_width (cr, LINE_WIDTH);
draw_caps_joins (cr);
/* and reflect to generate the opposite vertex ordering */
cairo_translate (cr, 0, height);
cairo_scale (cr, 1, -1);
draw_caps_joins (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (caps_joins_curve,
"Test caps and joins on curves",
"stroke cap join", /* keywords */
NULL, /* requirements */
3 * (PAD + SIZE) + PAD,
2 * (PAD + SIZE) + PAD,
NULL, draw)
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