#!/usr/bin/perl
# PDFlib client: pdfclock example in Perl
# (C) Thomas Merz 1998-99

use pdflib 2.01;
package pdflib;

$RADIUS = 200.0;
$MARGIN = 20.0;

$p = PDF_new();

die "Couldn't open PDF file" if (PDF_open_file($p, "pdfclock_pl.pdf") == -1);

PDF_set_info($p, "Creator", "pdfclock.pl");
PDF_set_info($p, "Author", "Thomas Merz");
PDF_set_info($p, "Title", "PDF clock (Perl)");

PDF_begin_page($p, 2 * ($RADIUS + $MARGIN), 2 * ($RADIUS + $MARGIN));

PDF_set_transition($p, "wipe");
PDF_set_duration($p, 0.5);

PDF_translate($p, $RADIUS + $MARGIN, $RADIUS + $MARGIN);
PDF_setrgbcolor($p, 0.0, 0.0, 1.0);
PDF_save($p);

# minute strokes 
PDF_setlinewidth($p, 2.0);
for ($alpha = 0; $alpha < 360; $alpha += 6)
{
    PDF_rotate($p, 6.0);
    PDF_moveto($p, $RADIUS, 0.0);
    PDF_lineto($p, $RADIUS-$MARGIN/3, 0.0);
    PDF_stroke($p);
}

PDF_restore($p);
PDF_save($p);

# 5 minute strokes
PDF_setlinewidth($p, 3.0);
for ($alpha = 0; $alpha < 360; $alpha += 30)
{
    PDF_rotate($p, 30.0);
    PDF_moveto($p, $RADIUS, 0.0);
    PDF_lineto($p, $RADIUS-$MARGIN, 0.0);
    PDF_stroke($p);
}

($tm_sec,$tm_min,$tm_hour) = localtime(time);

# draw hour hand 
PDF_save($p);
PDF_rotate($p, (-(($tm_min/60.0) + $tm_hour - 3.0) * 30.0));
PDF_moveto($p, -$RADIUS/10, -$RADIUS/20);
PDF_lineto($p, $RADIUS/2, 0.0);
PDF_lineto($p, -$RADIUS/10, $RADIUS/20);
PDF_closepath($p);
PDF_fill($p);
PDF_restore($p);

# draw minute hand
PDF_save($p);
PDF_rotate($p, (-(($tm_sec/60.0) + $tm_min - 15.0) * 6.0));
PDF_moveto($p, -$RADIUS/10, -$RADIUS/20);
PDF_lineto($p, $RADIUS * 0.8, 0.0);
PDF_lineto($p, -$RADIUS/10, $RADIUS/20);
PDF_closepath($p);
PDF_fill($p);
PDF_restore($p);

# draw second hand
PDF_setrgbcolor($p, 1.0, 0.0, 0.0);
PDF_setlinewidth($p, 2);
PDF_save($p);
PDF_rotate($p, -(($tm_sec - 15.0) * 6.0));
PDF_moveto($p, -$RADIUS/5, 0.0);
PDF_lineto($p, $RADIUS, 0.0);
PDF_stroke($p);
PDF_restore($p);

# draw little circle at center
PDF_circle($p, 0, 0, $RADIUS/30);
PDF_fill($p);

PDF_restore($p);
PDF_end_page($p);

PDF_close($p);
PDF_delete($p);
