diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/transforms.c')
-rw-r--r-- | libs/cairo-1.16.0/test/transforms.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/transforms.c b/libs/cairo-1.16.0/test/transforms.c new file mode 100644 index 0000000..17b1396 --- /dev/null +++ b/libs/cairo-1.16.0/test/transforms.c @@ -0,0 +1,112 @@ +/* + * 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 Worth <cworth@cworth.org> + */ + +#include "cairo-test.h" + +#define WIDTH 45 +#define HEIGHT 30 + +static void +draw_L_shape (cairo_t *cr) +{ + cairo_move_to (cr, 0, 0); + cairo_rel_line_to (cr, 0, 10); + cairo_rel_line_to (cr, 5, 0); + + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_set_line_width (cr, 2.0); + cairo_stroke (cr); + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* 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_translate (cr, 5, 5); + + draw_L_shape (cr); + + cairo_translate (cr, 10, 0); + + cairo_save (cr); + { + cairo_scale (cr, 2, 2); + draw_L_shape (cr); + } + cairo_restore (cr); + + cairo_translate (cr, 15, 0); + + cairo_save (cr); + { + cairo_rotate (cr, M_PI / 2.0); + draw_L_shape (cr); + } + cairo_restore (cr); + + cairo_translate (cr, 5, 0); + + cairo_save (cr); + { + cairo_matrix_t skew_y = { + 1, -1, + 0, 1, + 0, 0 + }; + cairo_transform (cr, &skew_y); + draw_L_shape (cr); + } + cairo_restore (cr); + + cairo_translate (cr, 5, 10); + + cairo_save (cr); + { + cairo_matrix_t skew_x = { + 1.0, 0.0, + -0.5, 1.0, + 0.0, 0.0 + }; + cairo_transform (cr, &skew_x); + draw_L_shape (cr); + } + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (transforms, + "Test various transformations.", + "transforms, api", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) |