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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.
*
* Author: Carl D. Worth <cworth@cworth.org>
*/
#include "cairo-test.h"
cairo_test_t test = {
"get-and-set",
"Tests calls to the most trivial cairo_get and cairo_set functions",
0, 0
};
typedef struct {
cairo_operator_t operator;
double tolerance;
double point_x;
double point_y;
cairo_fill_rule_t fill_rule;
double line_width;
cairo_line_cap_t line_cap;
cairo_line_join_t line_join;
double miter_limit;
/* XXX: Add cairo_matrix_t here when it is exposed */
} settings_t;
/* Two sets of settings, no defaults */
settings_t settings[] = {
{
CAIRO_OPERATOR_IN,
2.0,
12.3,
4.56,
CAIRO_FILL_RULE_EVEN_ODD,
7.7,
CAIRO_LINE_CAP_SQUARE,
CAIRO_LINE_JOIN_ROUND,
3.14
},
{
CAIRO_OPERATOR_ATOP,
5.25,
99.99,
0.001,
CAIRO_FILL_RULE_WINDING,
2.17,
CAIRO_LINE_CAP_ROUND,
CAIRO_LINE_JOIN_BEVEL,
1000.0
}
};
static void
settings_set (cairo_t *cr, settings_t *settings)
{
cairo_set_operator (cr, settings->operator);
cairo_set_tolerance (cr, settings->tolerance);
cairo_move_to (cr, settings->point_x, settings->point_y);
cairo_set_fill_rule (cr, settings->fill_rule);
cairo_set_line_width (cr, settings->line_width);
cairo_set_line_cap (cr, settings->line_cap);
cairo_set_line_join (cr, settings->line_join);
cairo_set_miter_limit (cr, settings->miter_limit);
}
static void
settings_get (cairo_t *cr, settings_t *settings)
{
settings->operator = cairo_get_operator (cr);
settings->tolerance = cairo_get_tolerance (cr);
cairo_get_current_point (cr, &settings->point_x, &settings->point_y);
settings->fill_rule = cairo_get_fill_rule (cr);
settings->line_width = cairo_get_line_width (cr);
settings->line_cap = cairo_get_line_cap (cr);
settings->line_join = cairo_get_line_join (cr);
settings->miter_limit = cairo_get_miter_limit (cr);
}
/* Maximum error is one part of our fixed-point grid */
#define EPSILON (1.0 / 65536.0)
static int
DOUBLES_WITHIN_EPSILON(double a, double b) {
double delta = fabs(a - b);
return delta < EPSILON;
}
static int
settings_equal (settings_t *a, settings_t *b)
{
return (a->operator == b->operator &&
a->tolerance == b->tolerance &&
DOUBLES_WITHIN_EPSILON (a->point_x, b->point_x) &&
DOUBLES_WITHIN_EPSILON (a->point_y, b->point_y) &&
a->fill_rule == b->fill_rule &&
a->line_width == b->line_width &&
a->line_cap == b->line_cap &&
a->line_join == b->line_join &&
a->miter_limit == b->miter_limit);
}
static cairo_test_status_t
get_and_set (cairo_t *cr, int width, int height)
{
settings_t check;
settings_set (cr, &settings[0]);
cairo_save (cr);
{
settings_set (cr, &settings[1]);
settings_get (cr, &check);
if (!settings_equal (&settings[1], &check))
return CAIRO_TEST_FAILURE;
}
cairo_restore (cr);
settings_get (cr, &check);
if (!settings_equal (&settings[0], &check))
return CAIRO_TEST_FAILURE;
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test, get_and_set);
}
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