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/* $Id$
*
* Copyright © 2004 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>
*/
autoimport Cairo;
const real off_x = -100;
const real off_y = 30;
void clear (cairo_t cr) {
save (cr);
identity_matrix (cr);
set_source_rgb (cr, 1, 1, 1);
rectangle (cr, 0, 0, width(cr), height(cr));
fill (cr);
restore (cr);
}
void picture (cairo_t cr)
{
save (cr);
set_source_rgb (cr, 0, 0, 0);
move_to (cr, off_x, off_y);
# show_text (cr, "nickle and cairo together");
text_path (cr, "C");
fill (cr);
# show_text (cr, "CAIRO");
move_to (cr, off_x, off_y);
rel_line_to (cr, 250, 0);
set_source_rgb (cr, 0, 0, 1);
stroke (cr);
move_to (cr, 5, 0);
arc (cr, 5, 0, 5, 0, 10);
set_source_rgb (cr, 1, 0, 0);
fill (cr);
restore (cr);
}
void transform (cairo_t cr, real t)
{
translate (cr, 50, 50);
rotate (cr, t * pi / 180);
}
void animate (cairo_t cr)
{
real t = 0;
for (;;)
{
disable (cr);
save (cr);
translate (cr, 100, 100);
set_source_rgb (cr, 1, 1, 1);
clear (cr);
save (cr);
set_font (cr, "sans-12");
move_to (cr, 3, 20);
set_source_rgb (cr, 0, 0, 0);
show_text (cr, sprintf ("%5.2f", t));
restore (cr);
transform (cr, t);
picture (cr);
restore (cr);
enable (cr);
t += 1;
}
}
void main ()
{
cairo_t cr = new ();
set_font (cr, "bitstream vera sans-200");
animate (cr);
}
if (dim(argv) > 0) main ();
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