1 
/*
2 
 * Copyright © 2007 Keith Packard
3 
 *
4 
 * This library is free software; you can redistribute it and/or
5 
 * modify it either under the terms of the GNU Lesser General Public
6 
 * License version 2.1 as published by the Free Software Foundation
7 
 * (the "LGPL") or, at your option, under the terms of the Mozilla
8 
 * Public License Version 1.1 (the "MPL"). If you do not alter this
9 
 * notice, a recipient may use your version of this file under either
10 
 * the MPL or the LGPL.
11 
 *
12 
 * You should have received a copy of the LGPL along with this library
13 
 * in the file COPYING-LGPL-2.1; if not, write to the Free Software
14 
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
15 
 * You should have received a copy of the MPL along with this library
16 
 * in the file COPYING-MPL-1.1
17 
 *
18 
 * The contents of this file are subject to the Mozilla Public License
19 
 * Version 1.1 (the "License"); you may not use this file except in
20 
 * compliance with the License. You may obtain a copy of the License at
21 
 * http://www.mozilla.org/MPL/
22 
 *
23 
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
24 
 * OF ANY KIND, either express or implied. See the LGPL or the MPL for
25 
 * the specific language governing rights and limitations.
26 
 *
27 
 * The Original Code is the cairo graphics library.
28 
 *
29 
 * The Initial Developer of the Original Code is Keith Packard
30 
 *
31 
 * Contributor(s):
32 
 *      Keith Packard <keithp@keithp.com>
33 
 */
34 
#include "cairo-test.h"
35 

            

        

            

                36
            

            

                
            

            

                
static cairo_test_status_t

            

        

            

                37
            

            

                3
            

            

                
draw (cairo_t *cr, int width, int height)

            

        

            

                38
            

            

                
            

            

                
{

            

        

            

                39
            

            

                
            

            

                
    double  xscale, yscale;

            

        

            

                40
            

            

                3
            

            

                
    cairo_set_source_rgb (cr, 1, 1, 1);

            

        

            

                41
            

            

                3
            

            

                
    cairo_paint (cr);

            

        

            

                42
            

            

                
            

            

                

            

        

            

                43
            

            

                3
            

            

                
    cairo_set_source_rgb (cr, 0, 0, 0);

            

        

            

                44
            

            

                3
            

            

                
    cairo_set_miter_limit (cr, 100000);

            

        

            

                45
            

            

                9
            

            

                
    for (xscale = 1; xscale <= 1000; xscale += 999)

            

        

            

                46
            

            

                18
            

            

                
	for (yscale = 1; yscale <= 1000; yscale += 999)

            

        

            

                47
            

            

                
            

            

                
	{

            

        

            

                48
            

            

                12
            

            

                
	    double  max_scale = xscale > yscale ? xscale : yscale;

            

        

            

                49
            

            

                12
            

            

                
	    cairo_save (cr);

            

        

            

                50
            

            

                12
            

            

                
	    if (xscale > 1)

            

        

            

                51
            

            

                6
            

            

                
		cairo_translate (cr, 50, 0);

            

        

            

                52
            

            

                12
            

            

                
	    if (yscale > 1)

            

        

            

                53
            

            

                6
            

            

                
		cairo_translate (cr, 0, 50);

            

        

            

                54
            

            

                12
            

            

                
	    cairo_scale (cr, xscale, yscale);

            

        

            

                55
            

            

                12
            

            

                
	    cairo_set_line_width (cr, 10.0 / max_scale);

            

        

            

                56
            

            

                12
            

            

                
	    cairo_move_to (cr, 10.0 / xscale, 10.0 / yscale);

            

        

            

                57
            

            

                12
            

            

                
	    cairo_line_to (cr, 40.0 / xscale, 10.0 / yscale);

            

        

            

                58
            

            

                12
            

            

                
	    cairo_line_to (cr, 10.0 / xscale, 30.0 / yscale);

            

        

            

                59
            

            

                12
            

            

                
	    cairo_stroke (cr);

            

        

            

                60
            

            

                12
            

            

                
	    cairo_restore (cr);

            

        

            

                61
            

            

                
            

            

                
	}

            

        

            

                62
            

            

                
            

            

                

            

        

            

                63
            

            

                3
            

            

                
    return CAIRO_TEST_SUCCESS;

            

        

            

                64
            

            

                
            

            

                
}

            

        

            

                65
            

            

                
            

            

                

            

        

            

                66
            

            

                1
            

            

                
CAIRO_TEST (miter_precision,

            

        

            

                67
            

            

                
            

            

                
	    "test how cairo deals with small miters"

            

        

            

                68
            

            

                
            

            

                
	    "\ncurrent code draws inappropriate bevels at times",

            

        

            

                69
            

            

                
            

            

                
	    "stoke, stress", /* keywords */

            

        

            

                70
            

            

                
            

            

                
	    NULL, /* requirements */

            

        

            

                71
            

            

                
            

            

                
	    120, 100,

            

        

            

                72
            

            

                
            

            

                
	    NULL, draw)