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/*
* 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)
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