## spreadsheet.tcl
##
## This demos shows how you can simulate a 3D table
## and has other basic features to begin a basic spreadsheet
##
## jeff.hobbs@acm.org
##  Converted to perl/tk by John Cerney


use Tk;

use Tk::TableMatrix;

my ($rows,$cols) = (10,10); # number of rows/cols
my $page = 'AA';
my $oldPage = '';

my $tableColors = { default => 'pink',AA => 'orange', BB => 'blue', CC => 'green'};

my $top = MainWindow->new;

sub colorize{
	my ($num) = @_;
	return 'colored' if( $num > 0 && $num%2);
	return '';
}

# Sub to fill the array variable
sub fill{

	my ($name, $array,$r,$c) = @_;
	my ($i,$j);
	$r ||= $rows;
	$c ||= $cols;
	for( $i = 0; $i<$r; $i++){
		for( $j = 0; $j<$c; $j++){
			if( $j && $i){
				$array->{"$i,$j"} = "$name $i,$j";
			}
			elsif( $i ){
				$array->{"$i,$j"} = "$i";
			}
			elsif( $j ){
				$array->{"$i,$j"} = sprintf("%c",($j+64));
			}
		}
	}
}

my $arrayVar = { AA => {},
		 BB => {},
		 CC => {}};

fill('AA',$arrayVar->{AA}, $rows,$cols); # fill up the array variable
fill('BB',$arrayVar->{BB}, $rows/2,$cols/2); # fill up the array variable

my $t = $top->Scrolled('TableMatrix', -rows => $rows, -cols => $cols, 
                              -width => 5, -height => 5,
			      -titlerows => 1, -titlecols => 1,
			      -coltagcommand => \&colorize,
			      -selectmode => 'extended',
			      -flashmode => 'on',
			      -variable => $arrayVar->{$page},		      				

                    );


my $label = $top->Label(-text => "TableMatrix vs Spreadsheet Example");

# Label the changes with the value of currentTest
my $currentText = '';
my $currentLabel = $top->Label(-textvariable => \$currentText);

# Entry that changes with the value of activeText
my $activeText = '';
my $activeEntry = $top->Entry(-textvariable => \$activeText);

my $pageLabel = $top->Label(-text => 'PAGE:', -width => 6, -anchor => 'e');
my $pageSelect = $top->Optionmenu( -options => [ qw/ AA BB CC/], 
		-variable => \$page,
		-command => [ \&changepage]);



sub changepage{

	my ($newPage) = @_;
	
	if( $newPage ne $oldPage){
		
		$t->selectionClear('all');
		$t->activate(''); # unactivate anything
		$t->configure(-variable => $arrayVar->{$newPage});
	        # $e config -textvar ${i}(active)
		$t->activate('origin');
		if( exists $tableColors->{$newPage}){
			$t->tagConfigure('colored', -bg => $tableColors->{$newPage});
		}
		else{
			$t->tagConfigure('colored', -bg => $tableColors->{'default'});
		}
		$t->see('active');
		$oldPage = $newPage;
	}
}

$t->configure( -browsecommand => sub{
					my ($oldindex,$index) = @_;
					$currentText = $index;
					$activeText = $t->get($index);
				});



# hideous Color definitions here:
$t->tagConfigure('colored', -bg => $tableColors->{$page});
$t->tagConfigure('title', -fg => 'red', -relief => 'groove');
$t->tagConfigure('blue', -bg => 'blue');
$t->tagConfigure('green', -bg => 'green');

$t->tagCell('green', '6,3','5,7','4,9');
$t->tagCell('blue', '8,8');
$t->tagRow('blue', 7);
$t->tagCol('blue', 6,8);

$t->colWidth( 0 => 3, 2 => 7);

$label->grid(				'-',		'-',		'-',		'-',	'-sticky' => 'ew');
$currentLabel->grid(		$currentLabel,	$activeEntry, 	$pageLabel, 	$pageSelect, 	'-',	'-sticky' => 'ew');
$t->grid( 				'-',		'-',		'-',		'-',	'-sticky' => 'nsew');
$top->gridColumnconfigure(1, -weight => 1);
$top->gridRowconfigure(2, -weight => 1);


Tk::MainLoop;
