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/*
* Copyright © 2008 Chris Wilson
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author: Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairo-test.h"
static cairo_test_status_t
preamble (cairo_test_context_t *ctx)
{
cairo_test_status_t ret = CAIRO_TEST_SUCCESS;
cairo_surface_t *surface;
cairo_t *cr;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0);
cr = cairo_create (surface);
cairo_surface_destroy (surface);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
/* simple rectangle */
cairo_new_path (cr);
cairo_rectangle (cr, -10, -10, 20, 20);
if (! cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Failed to find point inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
/* rectangular boundary tests */
if (! cairo_in_fill (cr, -10, -10)) {
cairo_test_log (ctx, "Error: Failed to find top-left vertex inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, -10, 10)) {
cairo_test_log (ctx, "Error: Failed to find bottom-left vertex inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, 10, -10)) {
cairo_test_log (ctx, "Error: Failed to find top-right vertex inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, 10, 10)) {
cairo_test_log (ctx, "Error: Failed to find bottom-right vertex inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, -10, 0)) {
cairo_test_log (ctx, "Error: Failed to find left edge inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, 0, -10)) {
cairo_test_log (ctx, "Error: Failed to find top edge inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, 10, 0)) {
cairo_test_log (ctx, "Error: Failed to find right edge inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, 0, 10)) {
cairo_test_log (ctx, "Error: Failed to find bottom edge inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
/* simple circle */
cairo_new_path (cr);
cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI);
if (! cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Failed to find point inside circle [even-odd]\n");
ret = CAIRO_TEST_FAILURE;
}
/* holey rectangle */
cairo_new_path (cr);
cairo_rectangle (cr, -10, -10, 20, 20);
cairo_rectangle (cr, -5, -5, 10, 10);
if (cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Found an unexpected point inside rectangular eo-hole\n");
ret = CAIRO_TEST_FAILURE;
}
/* holey circle */
cairo_new_path (cr);
cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI);
cairo_arc (cr, 0, 0, 5, 0, 2 * M_PI);
if (cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Found an unexpected point inside circular eo-hole\n");
ret = CAIRO_TEST_FAILURE;
}
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
/* simple rectangle */
cairo_new_path (cr);
cairo_rectangle (cr, -10, -10, 20, 20);
if (! cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Failed to find point inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
/* simple circle */
cairo_new_path (cr);
cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI);
if (! cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Failed to find point inside circle [nonzero]\n");
ret = CAIRO_TEST_FAILURE;
}
/* overlapping circle/rectangle */
cairo_new_path (cr);
cairo_rectangle (cr, -10, -10, 20, 20);
cairo_new_sub_path (cr);
cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI);
if (! cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Failed to find point inside circle+rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
/* holey rectangle */
cairo_new_path (cr);
cairo_rectangle (cr, -10, -10, 20, 20);
cairo_rectangle (cr, 5, -5, -10, 10);
if (cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Found an unexpected point inside rectangular non-zero-hole\n");
ret = CAIRO_TEST_FAILURE;
}
/* holey circle */
cairo_new_path (cr);
cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI);
cairo_arc_negative (cr, 0, 0, 5, 0, -2 * M_PI);
if (cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Found an unexpected point inside circular non-zero-hole\n");
ret = CAIRO_TEST_FAILURE;
}
/* not a holey circle */
cairo_new_path (cr);
cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI);
cairo_arc (cr, 0, 0, 5, 0, 2 * M_PI);
if (! cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Failed to find point inside two circles\n");
ret = CAIRO_TEST_FAILURE;
}
/* check off-centre */
cairo_new_path (cr);
cairo_arc (cr, 7.5, 0, 10, 0, 2 * M_PI);
cairo_arc_negative (cr, 7.5, 0, 5, 0, -2 * M_PI);
if (cairo_in_fill (cr, 7.5, 0)) {
cairo_test_log (ctx, "Error: Found an unexpected point inside off-centre-x circular non-zero-hole\n");
ret = CAIRO_TEST_FAILURE;
}
cairo_new_path (cr);
cairo_arc (cr, 0, 7.5, 10, 0, 2 * M_PI);
cairo_arc_negative (cr, 0, 7.5, 5, 0, -2 * M_PI);
if (cairo_in_fill (cr, 0, 7.5)) {
cairo_test_log (ctx, "Error: Found an unexpected point inside off-centre-y circular non-zero-hole\n");
ret = CAIRO_TEST_FAILURE;
}
cairo_new_path (cr);
cairo_arc (cr, 15, 0, 10, 0, 2 * M_PI);
if (! cairo_in_fill (cr, 15, 0)) {
cairo_test_log (ctx, "Error: Failed to find point inside off-centre-x circle\n");
ret = CAIRO_TEST_FAILURE;
}
cairo_new_path (cr);
cairo_arc (cr, 0, 15, 10, 0, 2 * M_PI);
if (! cairo_in_fill (cr, 0, 15)) {
cairo_test_log (ctx, "Error: Failed to find point inside off-centre-y circle\n");
ret = CAIRO_TEST_FAILURE;
}
/* simple rectangle */
cairo_new_path (cr);
cairo_rectangle (cr, 10, 0, 5, 5);
if (cairo_in_fill (cr, 0, 0)) {
cairo_test_log (ctx, "Error: Found an unexpected point outside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (cairo_in_fill (cr, 20, 20)) {
cairo_test_log (ctx, "Error: Found an unexpected point outside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, 12.5, 2.5)) {
cairo_test_log (ctx, "Error: Failed to find point inside rectangle\n");
ret = CAIRO_TEST_FAILURE;
}
/* off-centre triangle */
cairo_new_path (cr);
cairo_move_to (cr, 10, 0);
cairo_line_to (cr, 15, 5);
cairo_line_to (cr, 5, 5);
cairo_close_path (cr);
if (cairo_in_fill (cr, 0, 0) ||
cairo_in_fill (cr, 5, 0) ||
cairo_in_fill (cr, 15, 0) ||
cairo_in_fill (cr, 20, 0) ||
cairo_in_fill (cr, 0, 10) ||
cairo_in_fill (cr, 10, 10) ||
cairo_in_fill (cr, 20, 10) ||
cairo_in_fill (cr, 7, 2.5) ||
cairo_in_fill (cr, 13, 2.5))
{
cairo_test_log (ctx,
"Error: Found an unexpected point outside triangle\n"
"\t(0, 0) -> %s\n"
"\t(5, 0) -> %s\n"
"\t(15, 0) -> %s\n"
"\t(20, 0) -> %s\n"
"\t(0, 10) -> %s\n"
"\t(10, 10) -> %s\n"
"\t(20, 10) -> %s\n"
"\t(7, 2.5) -> %s\n"
"\t(13, 2.5) -> %s\n",
cairo_in_fill (cr, 0, 0) ? "inside" : "outside",
cairo_in_fill (cr, 5, 0) ? "inside" : "outside",
cairo_in_fill (cr, 15, 0) ? "inside" : "outside",
cairo_in_fill (cr, 20, 0) ? "inside" : "outside",
cairo_in_fill (cr, 0, 10) ? "inside" : "outside",
cairo_in_fill (cr, 10, 10) ? "inside" : "outside",
cairo_in_fill (cr, 20, 10) ? "inside" : "outside",
cairo_in_fill (cr, 7, 2.5) ? "inside" : "outside",
cairo_in_fill (cr, 13, 2.5) ? "inside" : "outside");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, 7.5, 2.5) ||
! cairo_in_fill (cr, 12.5, 2.5) ||
! cairo_in_fill (cr, 10, 5))
{
cairo_test_log (ctx,
"Error: Failed to find point on triangle edge\n"
"\t(7.5, 2.5) -> %s\n"
"\t(12.5, 2.5) -> %s\n"
"\t(10, 5) -> %s\n",
cairo_in_fill (cr, 7.5, 2.5) ? "inside" : "outside",
cairo_in_fill (cr, 12.5, 2.5) ? "inside" : "outside",
cairo_in_fill (cr, 10, 5) ? "inside" : "outside");
ret = CAIRO_TEST_FAILURE;
}
if (! cairo_in_fill (cr, 8, 2.5) ||
! cairo_in_fill (cr, 12, 2.5))
{
cairo_test_log (ctx, "Error: Failed to find point inside triangle\n");
ret = CAIRO_TEST_FAILURE;
}
cairo_destroy (cr);
return ret;
}
CAIRO_TEST (in_fill_trapezoid,
"Test cairo_in_fill",
"in, trap", /* keywords */
NULL, /* requirements */
0, 0,
preamble, NULL)
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