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Diffstat (limited to 'test/path-data.c')
| -rw-r--r-- | test/path-data.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/test/path-data.c b/test/path-data.c new file mode 100644 index 000000000..b2d7edbf5 --- /dev/null +++ b/test/path-data.c @@ -0,0 +1,184 @@ +/* + * 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 <stdlib.h> +#include "cairo-test.h" + +cairo_test_t test = { + "path-data", + "Tests calls to path_data functions: cairo_copy_path_data, cairo_copy_path_data_flat, and cairo_append_path_data", + 45, 53 +}; + +static void +scale_by_two (double *x, double *y) +{ + *x = *x * 2.0; + *y = *y * 2.0; +} + +typedef void (*munge_func_t) (double *x, double *y); + +static void +munge_and_set_path (cairo_t *cr, + cairo_path_t *path, + munge_func_t munge) +{ + int i; + cairo_path_data_t *p; + double x1, y1, x2, y2, x3, y3; + + for (i=0; i < path->num_data; i += path->data[i].header.length) { + p = &path->data[i]; + switch (p->header.type) { + case CAIRO_PATH_MOVE_TO: + x1 = p[1].point.x; y1 = p[1].point.y; + (munge) (&x1, &y1); + cairo_move_to (cr, x1, y1); + break; + case CAIRO_PATH_LINE_TO: + x1 = p[1].point.x; y1 = p[1].point.y; + (munge) (&x1, &y1); + cairo_line_to (cr, x1, y1); + break; + case CAIRO_PATH_CURVE_TO: + x1 = p[1].point.x; y1 = p[1].point.y; + x2 = p[2].point.x; y2 = p[2].point.y; + x3 = p[3].point.x; y3 = p[3].point.y; + (munge) (&x1, &y1); + (munge) (&x2, &y2); + (munge) (&x3, &y3); + cairo_curve_to (cr, + x1, y1, + x2, y2, + x3, y3); + break; + case CAIRO_PATH_CLOSE_PATH: + cairo_close_path (cr); + break; + } + } +} + +static void +make_path (cairo_t *cr) +{ + cairo_rectangle (cr, 0, 0, 5, 5); + cairo_move_to (cr, 15, 2.5); + cairo_arc (cr, 12.5, 2.5, 2.5, 0, 2 * M_PI); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_path_t *path; + + /* copy path, munge, and fill */ + cairo_translate (cr, 5, 5); + make_path (cr); + path = cairo_copy_path (cr); + + cairo_new_path (cr); + munge_and_set_path (cr, path, scale_by_two); + cairo_path_destroy (path); + cairo_fill (cr); + + /* copy flattened path, munge, and fill */ + cairo_translate (cr, 0, 15); + make_path (cr); + path = cairo_copy_path_flat (cr); + + cairo_new_path (cr); + munge_and_set_path (cr, path, scale_by_two); + cairo_path_destroy (path); + cairo_fill (cr); + + /* append two copies of path, and fill */ + cairo_translate (cr, 0, 15); + cairo_scale (cr, 2.0, 2.0); + make_path (cr); + path = cairo_copy_path (cr); + + cairo_new_path (cr); + cairo_append_path (cr, path); + cairo_translate (cr, 2.5, 2.5); + cairo_append_path (cr, path); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_fill (cr); + + cairo_path_destroy (path); + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + cairo_t *cr; + cairo_path_data_t data; + cairo_path_t path; + cairo_surface_t *surface; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + + /* Test a few error cases for cairo_append_path_data */ + cr = cairo_create (surface); + cairo_append_path (cr, NULL); + if (cairo_status (cr) != CAIRO_STATUS_NULL_POINTER) + return 1; + cairo_destroy (cr); + + cr = cairo_create (surface); + path.data = NULL; + path.num_data = 0; + cairo_append_path (cr, &path); + if (cairo_status (cr) != CAIRO_STATUS_NULL_POINTER) + return 1; + cairo_destroy (cr); + + cr = cairo_create (surface); + /* Intentionally insert bogus header.length value (otherwise would be 2) */ + data.header.type = CAIRO_PATH_MOVE_TO; + data.header.length = 1; + path.data = &data; + path.num_data = 1; + cairo_append_path (cr, &path); + if (cairo_status (cr) != CAIRO_STATUS_INVALID_PATH_DATA) + return 1; + cairo_destroy (cr); + + /* And test the degnerate case */ + cr = cairo_create (surface); + path.num_data = 0; + cairo_append_path (cr, &path); + if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) + return 1; + cairo_destroy (cr); + + cairo_surface_destroy (surface); + + return cairo_test (&test, draw); +} |