/usr/share/nickle/nichrome-lozenge.5c is in cairo-5c 1.10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | /*
* Copyright © 2008 Keith Packard
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is Keith Packard
*
* Contributor(s):
* Keith Packard <keithp@keithp.com>
*/
autoload Nichrome;
extend namespace Nichrome {
public namespace Lozenge {
protected rgba_color_t illum (rgba_color_t c, real add) {
return (rgba_color_t) {
red = max (min (c.red + add, 1), 0),
green = max (min (c.green + add, 1), 0),
blue = max (min (c.blue + add, 1), 0),
alpha = c.alpha };
}
protected rgba_color_t interp (rgba_color_t l, rgba_color_t r, real ratio)
{
return (rgba_color_t) {
red = l.red * (1-ratio) + r.red * ratio,
green = l.green * (1-ratio) + r.green * ratio,
blue = l.blue * (1-ratio) + r.blue * ratio,
alpha = l.alpha * (1-ratio) + r.alpha * ratio };
}
protected void outline (cairo_t cr, int width, int height)
{
height = height & ~1;
int radius = height / 2;
move_to (cr, radius, height);
arc (cr, radius, radius, radius, pi/2, -pi/2);
line_to (cr, width - radius, 0);
arc (cr, width - radius, radius, radius, -pi/2, pi/2);
close_path (cr);
}
protected void draw (cairo_t cr, int width, int height, rgba_color_t color,
int highlight)
{
real add = .3;
int xhighlight = highlight;
int yhighlight = highlight;
save (cr);
if (height > width) {
rotate (cr, pi/2);
translate (cr, 0, -width);
int t = width; width = height; height = t;
xhighlight = highlight;
yhighlight = -highlight;
}
height = height & ~1;
int radius = height / 2;
outline (cr, width, height);
clip (cr);
rgba_color_t light = color;
rgba_color_t lighter = illum (light, add);
rgba_color_t medium = light;
rgba_color_t darker = illum (light, -add);
pattern_t pat = Pattern::create_radial (radius + xhighlight,
radius + yhighlight,
0,
radius + xhighlight,
radius + yhighlight,
radius);
Pattern::add_color_stop_rgba (pat, 0, lighter.red, lighter.green,
lighter.blue, lighter.alpha);
Pattern::add_color_stop_rgba (pat, 0.5, medium.red, medium.green,
medium.blue, medium.alpha);
Pattern::add_color_stop_rgba (pat, 1, darker.red, darker.green,
darker.blue, darker.alpha);
set_source (cr, pat);
rectangle (cr, 0, 0, radius + xhighlight, height);
fill (cr);
pattern_t pat = Pattern::create_linear (0, yhighlight, 0,
height + yhighlight);
Pattern::add_color_stop_rgba (pat, 0, darker.red, darker.green,
darker.blue, darker.alpha);
Pattern::add_color_stop_rgba (pat, 0.25, medium.red, medium.green,
medium.blue, medium.alpha);
Pattern::add_color_stop_rgba (pat, 0.5, lighter.red, lighter.green,
lighter.blue, lighter.alpha);
Pattern::add_color_stop_rgba (pat, 0.75, medium.red, medium.green,
medium.blue, medium.alpha);
Pattern::add_color_stop_rgba (pat, 1, darker.red, darker.green,
darker.blue, darker.alpha);
set_source (cr, pat);
rectangle (cr, radius + xhighlight, 0, width - height, height);
fill (cr);
pattern_t pat = Pattern::create_radial (width - radius + xhighlight,
radius + yhighlight,
0,
width - radius + xhighlight,
radius + yhighlight,
radius);
Pattern::add_color_stop_rgba (pat, 0, lighter.red, lighter.green,
lighter.blue, lighter.alpha);
Pattern::add_color_stop_rgba (pat, 0.5, medium.red, medium.green,
medium.blue, medium.alpha);
Pattern::add_color_stop_rgba (pat, 1, darker.red, darker.green,
darker.blue, darker.alpha);
set_source (cr, pat);
rectangle (cr, width - radius + xhighlight, 0, radius - xhighlight, height);
fill (cr);
restore (cr);
}
}
}
|