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/*
* 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.
*
* Authors: Carl D. Worth <cworth@cworth.org>
* Emmanuel Pacaud <emmanuel.pacaud@lapp.in2p3.fr>
*/
#include "cairo-test.h"
#define LINE_WIDTH 1.
#define SIZE 10
#define LINE_NBR 6
struct {
double length;
double red, green, blue;
} lines[LINE_NBR] = {
{ 100.0, 1.0, 0.0, 0.0 },
{ 10000.0, 0.0, 1.0, 0.0 },
{ 100000.0, 0.0, 0.0, 1.0 },
{ 1000000.0, 1.0, 1.0, 0.0 },
{ 10000000.0, 0.0, 1.0, 1.0 },
{ 100000000.0, 1.0, 0.0, 1.0 }
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
double pos;
int i;
/* 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);
pos = SIZE + .5;
for (i = 0; i < LINE_NBR; i++) {
cairo_move_to (cr, pos, -lines[i].length);
cairo_line_to (cr, pos, +lines[i].length);
cairo_set_source_rgb (cr, lines[i].red, lines[i].green, lines[i].blue);
cairo_stroke (cr);
pos += SIZE;
}
/* This should display a perfect vertically centered black line */
cairo_move_to (cr, 0.5, -1e100);
cairo_line_to (cr, pos, 1e100);
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_stroke (cr);
return CAIRO_TEST_SUCCESS;
}
/* XFAIL: range overflow of fixed-point */
CAIRO_TEST (long_lines,
"Test long lines"
"\nLong lines are not drawn due to the limitations of the internal 16.16 fixed-point coordinates",
"stroke, stress", /* keywords */
NULL, /* requirements */
SIZE * (LINE_NBR + 1), SIZE * (LINE_NBR + 1),
NULL, draw)