#!/usr/bin/perl

# Include current script directory in the module path (needed on Microsoft IIS).
# This allows this script to work by copying ChartDirector to the same directory
# as the script (as an alternative to installation in Perl module directory)
use File::Basename;
use lib dirname($0) =~ /(.*)/;

use perlchartdir;

# Get HTTP query parameters
use CGI;
my $query = new CGI;

# The data for the pie chart
my $data = [18, 30, 20, 15];

# The colors to use for the sectors
my $colors = [0x66aaee, 0xeebb22, 0xbbbbbb, 0x8844ff];

# Create a PieChart object of size 200 x 220 pixels. Use a vertical gradient color
# from blue (0000cc) to deep blue (000044) as background. Use rounded corners of 16
# pixels radius.
my $c = new PieChart(200, 220);
$c->setBackground($c->linearGradientColor(0, 0, 0, $c->getHeight(), 0x0000cc,
    0x000044));
$c->setRoundedFrame(0xffffff, 16);

# Set donut center at (100, 120), and outer/inner radii as 80/40 pixels
$c->setDonutSize(100, 120, 80, 40);

# Set the pie data
$c->setData($data);

# Set the sector colors
$c->setColors2($perlchartdir::DataColor, $colors);

# Demonstrates various shading modes
if ($query->param("img") eq "0") {
    $c->addTitle("Default Shading", "bold", 12, 0xffffff);
} elsif ($query->param("img") eq "1") {
    $c->addTitle("Local Gradient", "bold", 12, 0xffffff);
    $c->setSectorStyle($perlchartdir::LocalGradientShading);
} elsif ($query->param("img") eq "2") {
    $c->addTitle("Global Gradient", "bold", 12, 0xffffff);
    $c->setSectorStyle($perlchartdir::GlobalGradientShading);
} elsif ($query->param("img") eq "3") {
    $c->addTitle("Concave Shading", "bold", 12, 0xffffff);
    $c->setSectorStyle($perlchartdir::ConcaveShading);
} elsif ($query->param("img") eq "4") {
    $c->addTitle("Rounded Edge", "bold", 12, 0xffffff);
    $c->setSectorStyle($perlchartdir::RoundedEdgeShading);
} elsif ($query->param("img") eq "5") {
    $c->addTitle("Radial Gradient", "bold", 12, 0xffffff);
    $c->setSectorStyle($perlchartdir::RadialShading);
} elsif ($query->param("img") eq "6") {
    $c->addTitle("Ring Shading", "bold", 12, 0xffffff);
    $c->setSectorStyle($perlchartdir::RingShading);
}

# Disable the sector labels by setting the color to Transparent
$c->setLabelStyle("", 8, $perlchartdir::Transparent);

# Output the chart
binmode(STDOUT);
print "Content-type: image/png\n\n";
print $c->makeChart2($perlchartdir::PNG);