#!/usr/bin/perl
# $Id$
# these simple samples have been developped by C. Mertz mertz@cena.fr

use Tk;
use Tk::Zinc;
use strict;

my $defaultfont = '-adobe-helvetica-bold-r-normal-*-120-*-*-*-*-*-*';
my $mw = MainWindow->new();
my $zinc = $mw->Zinc(-width => 700, -height => 600,
		     -borderwidth => 3, -relief => 'sunken',
		     -render => 1, # for activating the openGL render
		     )->pack;

die "no openGL rendering on this X server" unless $zinc->cget(-render);

$zinc->add('rectangle', 1, [10,10, 690, 100], -fillcolor => "red|blue", -filled => 1);

$zinc->add('text', 1,
	   -font => $defaultfont,
	   -text => "A variation from non transparent red to non transparent blue.\n",
	   -anchor => 'nw',
	   -position => [20, 20]);


$zinc->add('rectangle', 1, [10,110, 690, 200], -fillcolor => "red:40|blue:40", -filled => 1);

$zinc->add('text', 1,
	   -font => $defaultfont,
	   -text => "A variation from 40%transparent red to 40% transparent blue.",
	   -anchor => 'nw',
	   -position => [20, 120]);

$zinc->add('rectangle', 1, [10, 210, 690, 300], -fillcolor => "red:40|green:40 50|blue:40", -filled => 1);

$zinc->add('text', 1,
	   -font => $defaultfont,
	   -text => "A variation from 40%transparent red to 40% transparent blue.\n".
	   "through a 40%green on the middle",
	   -anchor => 'nw',
	   -position => [20, 220]);

$zinc->add('text', 1,
	   -font => $defaultfont,
	   -text => "Two overlaping transparently colored rectangles on a white background",
	   -anchor => 'nw',
	   -position => [20, 320]);

$zinc->add('rectangle', 1, [10, 340, 690, 590], -fillcolor => "white", -filled => 1);
$zinc->add('rectangle', 1, [200, 350, 500, 580], -fillcolor => "red:40|green:40 50|blue:40", -filled => 1);

$zinc->add('rectangle', 1, [10, 400, 690, 500], -fillcolor => "yellow:40|black:40 50|cyan:40", -filled => 1);




MainLoop;