diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/arc-direction.c')
-rw-r--r-- | libs/cairo-1.16.0/test/arc-direction.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/arc-direction.c b/libs/cairo-1.16.0/test/arc-direction.c new file mode 100644 index 0000000..92c1a8d --- /dev/null +++ b/libs/cairo-1.16.0/test/arc-direction.c @@ -0,0 +1,105 @@ +/* + * Copyright © 2012 Intel Corporation + * + * 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" + +#define SIZE (2 * 20) +#define PAD (2) + +static cairo_test_status_t +draw_arcs (cairo_t *cr) +{ + double start = M_PI/12, stop = 2*start; + + cairo_move_to (cr, SIZE/2, SIZE/2); + cairo_arc (cr, SIZE/2, SIZE/2, SIZE/2, start, stop); + cairo_fill (cr); + + cairo_translate (cr, SIZE+PAD, 0); + cairo_move_to (cr, SIZE/2, SIZE/2); + cairo_arc (cr, SIZE/2, SIZE/2, SIZE/2, 2*M_PI-stop, 2*M_PI-start); + cairo_fill (cr); + + cairo_translate (cr, 0, SIZE+PAD); + cairo_move_to (cr, SIZE/2, SIZE/2); + cairo_arc_negative (cr, SIZE/2, SIZE/2, SIZE/2, 2*M_PI-stop, 2*M_PI-start); + cairo_fill (cr); + + cairo_translate (cr, -SIZE-PAD, 0); + cairo_move_to (cr, SIZE/2, SIZE/2); + cairo_arc_negative (cr, SIZE/2, SIZE/2, SIZE/2, start, stop); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_translate (cr, PAD, PAD); + draw_arcs(cr); + cairo_restore (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_translate (cr, 2*SIZE+3*PAD, 0); + cairo_save (cr); + cairo_translate (cr, 2*SIZE+2*PAD, PAD); + cairo_scale (cr, -1, 1); + draw_arcs(cr); + cairo_restore (cr); + + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_translate (cr, 0, 2*SIZE+3*PAD); + cairo_save (cr); + cairo_translate (cr, 2*SIZE+2*PAD, 2*SIZE+2*PAD); + cairo_scale (cr, -1, -1); + draw_arcs(cr); + cairo_restore (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_translate (cr, -(2*SIZE+3*PAD), 0); + cairo_save (cr); + cairo_translate (cr, PAD, 2*SIZE+2*PAD); + cairo_scale (cr, 1, -1); + draw_arcs(cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (arc_direction, + "Test drawing positive/negative arcs", + "arc, fill", /* keywords */ + NULL, /* requirements */ + 2*(3*PAD + 2*SIZE), 2*(3*PAD + 2*SIZE), + NULL, draw) + |