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/*
* Copyright © 2006 Red Hat, Inc.
*
* 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: Carl D. Worth <cworth@cworth.org>
*/
#include "cairo-test.h"
#define SIZE 25
static cairo_test_draw_function_t draw;
cairo_test_t test = {
"rectilinear-stroke",
"Test rectilinear stroke operations (covering only whole pixels)",
SIZE, SIZE,
draw
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
/* Paint background white, then draw in black. */
cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
cairo_paint (cr);
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
cairo_set_line_width (cr, 1.0);
cairo_translate (cr, 1, 1);
/* Draw everything first with square caps. */
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
/* Draw horizontal and vertical segments, each in both
* directions. */
cairo_move_to (cr, 4.5, 0.5);
cairo_rel_line_to (cr, 2.0, 0.0);
cairo_move_to (cr, 10.5, 4.5);
cairo_rel_line_to (cr, 0.0, 2.0);
cairo_move_to (cr, 6.5, 10.5);
cairo_rel_line_to (cr, -2.0, 0.0);
cairo_move_to (cr, 0.5, 6.5);
cairo_rel_line_to (cr, 0.0, -2.0);
/* Draw right angle turns in four directions. */
cairo_move_to (cr, 0.5, 2.5);
cairo_rel_line_to (cr, 0.0, -2.0);
cairo_rel_line_to (cr, 2.0, 0.0);
cairo_move_to (cr, 8.5, 0.5);
cairo_rel_line_to (cr, 2.0, 0.0);
cairo_rel_line_to (cr, 0.0, 2.0);
cairo_move_to (cr, 10.5, 8.5);
cairo_rel_line_to (cr, 0.0, 2.0);
cairo_rel_line_to (cr, -2.0, 0.0);
cairo_move_to (cr, 2.5, 10.5);
cairo_rel_line_to (cr, -2.0, 0.0);
cairo_rel_line_to (cr, 0.0, -2.0);
/* Draw a closed-path rectangle */
cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0);
cairo_stroke (cr);
cairo_translate (cr, 12, 0);
/* Now draw the same results, but with butt caps. */
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
/* Draw horizontal and vertical segments, each in both
* directions. */
cairo_move_to (cr, 4.0, 0.5);
cairo_rel_line_to (cr, 3.0, 0.0);
cairo_move_to (cr, 10.5, 4.0);
cairo_rel_line_to (cr, 0.0, 3.0);
cairo_move_to (cr, 7.0, 10.5);
cairo_rel_line_to (cr, -3.0, 0.0);
cairo_move_to (cr, 0.5, 7.0);
cairo_rel_line_to (cr, 0.0, -3.0);
/* Draw right angle turns in four directions. */
cairo_move_to (cr, 0.5, 3.0);
cairo_rel_line_to (cr, 0.0, -2.5);
cairo_rel_line_to (cr, 2.5, 0.0);
cairo_move_to (cr, 8.0, 0.5);
cairo_rel_line_to (cr, 2.5, 0.0);
cairo_rel_line_to (cr, 0.0, 2.5);
cairo_move_to (cr, 10.5, 8.0);
cairo_rel_line_to (cr, 0.0, 2.5);
cairo_rel_line_to (cr, -2.5, 0.0);
cairo_move_to (cr, 3.0, 10.5);
cairo_rel_line_to (cr, -2.5, 0.0);
cairo_rel_line_to (cr, 0.0, -2.5);
/* Draw a closed-path rectangle */
cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0);
/* Draw a path that is rectilinear initially, but not completely */
/* We draw this out of the target window. The bug that caused this
* addition was leaks if part of the path was rectilinear but not
* completely */
cairo_move_to (cr, 3.0, 30.5);
cairo_rel_line_to (cr, -2.5, 0.0);
cairo_rel_line_to (cr, +2.5, +2.5);
cairo_stroke (cr);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test);
}
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