| /* |
| * 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) |