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tk_analog_clock.pl
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tk_analog_clock.pl
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#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
use Getopt::Long;
use Tk;
use Tk::Notebook;
use vars qw( %clock %obj $_debug $_test $_verbose $_pi $mode_24h %calculated );
$| = 1;
srand();
$Data::Dumper::Deepcopy = 1;
$Data::Dumper::Sortkeys = 1;
$_debug = 0;
$_test = 0;
$_verbose = 0;
$_pi = 3.141593;
$mode_24h = 0;
$obj{setting}{time} = q{00:00:00};
my %max = (
x => 480,
y => 500,
);
GetOptions( qq{debug} => \$_debug, );
%calculated = ();
$calculated{center}{x} = $max{x} / 2;
$calculated{center}{y} = $max{y} / 2;
foreach my $i ( 0 .. 23 ) {
$calculated{hour}{angle}{q{24h}}{$i} = $_pi * ( int( 90 - 360 * ( ( $i / 24.0 ) / 24.0 ) ) % 360 ) / 180.0;
}
foreach my $i ( 1 .. 12 ) {
$calculated{hour}{angle}{q{12h}}{$i} = $_pi * ( int( 90 - 360 * ( ( $i / 12.0 ) / 12.0 ) ) % 360 ) / 180.0;
}
foreach my $i ( 0 .. 59 ) {
$calculated{minute}{angle}{$i} = $_pi * ( int( 90 - 360 * ( ( $i / 60.0 ) / 60.0 ) ) % 360 ) / 180.0;
}
$obj{mw} = Tk::MainWindow->new();
$obj{display} =
$obj{mw}->Frame()->grid( -column => 0, -columnspan => 4, -row => 0, );
$obj{canvas} =
$obj{display}
->Canvas( -width => $max{x}, -height => $max{y}, -background => q{#000000}, )
->pack();
$obj{image} = $obj{mw}
->Photo( -width => $max{x}, -height => $max{y}, -palette => q{256/256/256}, );
$obj{image}->blank;
$obj{canvas}->createImage( 0, 0, -image => $obj{image}, -anchor => q{nw}, );
$obj{control} =
$obj{mw}->Frame()->grid( -column => 0, -columnspan => 4, -row => 6, );
$obj{control}->Label( -text => q{Hour mode:} )
->grid( -column => 0, -columnspan => 2, -row => 1, );
$obj{control}
->Radiobutton( -text => q{24h}, -value => 1, -variable => \$mode_24h, )
->grid( -column => 2, -row => 1, );
$obj{control}
->Radiobutton( -text => q{12h}, -value => 0, -variable => \$mode_24h, )
->grid( -column => 3, -row => 1, );
$obj{canvas}->after( 250, \&update );
$obj{repeat} = $obj{canvas}->repeat( 250, \&update );
MainLoop;
#
# Subroutines
#
sub update {
my $_pi = 3.141593;
# my $mode_24h = 0;
my %color = (
# hand => q{#00FFFF},
face => q{#009999},
);
my %center;
foreach my $c ( keys %max ) {
$center{$c} = $max{$c} / 2;
}
my $radius = $max{x};
if ( $max{y} < $radius ) {
$radius = $max{y} / 2;
}
$radius = int( $radius * 0.375 );
# print Data::Dumper->Dump( [ \$radius, ], [ qw( *radius ) ] ), qq{\n};
# 0 1 2 3 4 5 6 7 8
# ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst ) =
# localtime(time);
my @lt = localtime(time);
my $seconds = $lt[2] * 3600;
$seconds += $lt[1] * 60;
$seconds += $lt[0];
# print __FILE__ . q{:} . __LINE__ . q{: } . qq{\n};
$obj{canvas}
->createRectangle( 0, 0, $max{x}, $max{y}, -fill => q{#000000}, );
# Draw face
$obj{canvas}->createOval(
$center{x} - 5,
$center{y} - 5,
$center{x} + 5,
$center{y} + 5,
-fill => $color{hand},
);
foreach my $i ( 0 .. 95 ) {
my %inner;
my %outer;
my $width;
if ( $i % 4 == 0 ) {
$inner{radius} = $radius + 20;
$outer{radius} = $radius + 28;
$width = 2;
}
else {
$inner{radius} = $radius + 20;
$outer{radius} = $radius + 24;
$width = 1;
}
$outer{angle} = $inner{angle} = $_pi * ( $i / 48 );
$inner{x} = $center{x} + int( $inner{radius} * cos( $inner{angle} ) );
$inner{y} = $center{y} - int( $inner{radius} * sin( $inner{angle} ) );
$outer{x} = $center{x} + int( $outer{radius} * cos( $outer{angle} ) );
$outer{y} = $center{y} - int( $outer{radius} * sin( $outer{angle} ) );
$obj{canvas}->createLine(
$inner{x}, $inner{y}, $outer{x}, $outer{y},
-fill => $color{face},
-state => q{normal},
-width => $width,
);
# print Data::Dumper->Dump( [ \%max, \$radius, \$i, \%inner, \%outer, ], [ qw( *max *radius *i *inner *outer ) ] ), qq{\n};
}
foreach my $i ( 1 .. ( $mode_24h ? 24 : 12 ) ) {
my %cp;
$cp{radius} = $radius + 40;
# $cp{angle} = $_pi * ( ( 24 - $i - 6 ) / 12 );
if ($mode_24h) {
$cp{angle} = $_pi * ( ( 6 - $i ) / 12 );
}
else {
$cp{angle} = $_pi * ( ( 3 - $i ) / 6 );
}
$cp{x} = $center{x} + int( $cp{radius} * cos( $cp{angle} ) );
$cp{y} = $center{y} - int( $cp{radius} * sin( $cp{angle} ) );
$obj{canvas}->createText(
$cp{x}, $cp{y},
-anchor => q{center},
-fill => $color{face},
-state => q{normal},
-text => sprintf( qq{%02d}, $i % ( $mode_24h ? 24 : 13 ) ),
);
}
{
my %inner;
my %outer;
my @order = qw/ hour minute second /;
$inner{hour}{radius} = int( $radius * ( 5.0 / 6.0 ) );
$inner{minute}{radius} = $outer{hour}{radius} =
int( $radius * ( 4.0 / 6.0 ) );
$inner{second}{radius} = $outer{minute}{radius} =
int( $radius * ( 3.0 / 6.0 ) );
$outer{second}{radius} = $radius;
( $inner{hour}{radius}, $inner{second}{radius}, ) = ( $inner{second}{radius}, $inner{hour}{radius}, );
( $outer{hour}{radius}, $outer{second}{radius}, ) = ( $outer{second}{radius}, $outer{hour}{radius}, );
$color{hand}{hour} = q{#00FF00};
$color{hand}{minute} = q{#0000FF};
$color{hand}{second} = q{#FF0000};
$obj{canvas}->createOval(
$center{x} - 5,
$center{y} - 5,
$center{x} + 5,
$center{y} + 5,
-fill => $color{hand}{hour},
);
foreach my $str (@order) {
my $angle;
$inner{x} = $outer{x} = $center{x};
$inner{y} = $outer{y} = $center{y};
# =MOD( INT( 90 - 360 * ( D2 / 24 ) ), 360 )
if ($mode_24h) {
$angle =
$_pi * ( int( 90 - 360 * ( ( $lt[2] % 24 ) / 24.0 ) ) % 360 )
/ 180.0;
}
else {
$angle =
$_pi * ( int( 90 - 360 * ( ( $lt[2] % 12 ) / 12.0 ) ) % 360 )
/ 180.0;
}
$inner{x} = $outer{x};
$inner{y} = $outer{y};
if ( $str eq q{minute} ) {
# =MOD( INT( 90 - 360 * ( D2 / 60 ) ), 360 )
$angle =
$_pi * ( int( 90 - 360 * ( $lt[1] / 60.0 ) ) % 360 ) / 180.0;
$inner{x} = $outer{x};
$inner{y} = $outer{y};
}
if ( $str eq q{second} ) {
# =MOD( INT( 90 - 360 * ( D2 / 60 ) ), 360 )
$angle =
$_pi * ( int( 90 - 360 * ( $lt[0] / 60.0 ) ) % 360 ) / 180.0;
$inner{x} = $outer{x};
$inner{y} = $outer{y};
}
$outer{x} = $inner{x} + int( $inner{$str}{radius} * cos($angle) );
$outer{y} = $inner{y} - int( $inner{$str}{radius} * sin($angle) );
# if ( $str ne q{hour} ) {
$obj{canvas}->createOval(
$inner{x} - 3,
$inner{y} - 3,
$inner{x} + 3,
$inner{y} + 3,
-fill => $color{hand}{$str},
);
# }
$obj{canvas}->createLine(
$inner{x}, $inner{y}, $outer{x}, $outer{y},
-fill => $color{hand}{$str},
-state => q{normal},
-width => 2,
);
}
}
}
BEGIN {
if ( $^O eq q{MSWin32} ) {
eval {
require Win32::Console;
};
if ( not length $@ ) {
Win32::Console::Free();
}
}
}
__END__
=pod
=head1 tk-articulated.pl
tk-articulated.pl - a perl/Tk clock implementation of an analog clock with segmented, individually-moving arms
A representation of L<http://blog.longnow.org/02009/07/18/articulated-clock-hands/>.
=over
=item *
Can be articulated when hands in H-E<lt>M-E<lt>S or S-E<lt>M-E<lt>H (inner to outer order).
=item *
Can display as a 12 or 24-hour analog face.
=item *
Display updates approximately every 0.25s.
=back
=cut