#!/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, [0, 0, 100, 100], -fillcolor => "red|blue(50 50", -filled => 1);

$zinc->add('text', 1,
	   -font => $defaultfont,
	   -text => "Radial variation from non-transparent red to non-transparent blue\nin a squarre.\n",
	   -anchor => 'nw',
	   -position => [120, 20]);

$zinc->add('arc', 1, [0, 100, 100, 200], -fillcolor => "red:40|blue:40(50 150", -filled => 1);

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

$zinc->add('arc', 1, [0, 200, 100, 300], -fillcolor => "red:40|green:40 50|blue:40(50 250", -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 of the disc",
	   -anchor => 'nw',
	   -position => [120, 220]);

$zinc->add('text', 1,
	   -font => $defaultfont,
	   -text => "Two overlaping radialy, transparently colored items 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, [20, 365, 220, 565], -fillcolor => "red:40|green:40 50|blue:40(120 465", -filled => 1);

$zinc->add('arc', 1, [150, 365, 350, 565], -fillcolor => "yellow:40|black:40 50|cyan:40(250 465", -filled => 1);

$zinc->add('arc', 1, [280, 365, 480, 565], -fillcolor => "black:100|black:100 20|white:40(380 465", -filled => 1, -linewidth => 0);

$zinc->add('arc', 1, [480, 365, 580, 500], -fillcolor => "black:100|white:40(520 465", -filled => 1);

$zinc->add('arc', 1, [580, 410, 680, 580], -fillcolor => "black:50|white:40(600 450", -filled => 1);
$zinc->add('arc', 1, [580, 410, 680, 580], -fillcolor => "black:50|white:40(680 580", -filled => 1);




MainLoop;