<?php
# Data using http GET
# e.g. path/to/barchart.php?data=10,20,30&xaxis=Hello&d=.png
# The d=.png is just used to get pmwiki to display the image inline.
#
require_once('../pub/ChartDirector/lib/phpchartdir.php');
$data = split(",", $_GET["data"]);
$labels = split(",", $_GET["labels"]);
$x = $_GET["x"];
$y = $_GET["y"];
$color = hexdec($_GET["color"]);
$startcolor = hexdec($_GET["startcolor"]);
$labelcolor = hexdec($_GET["labelcolor"]);
$title = $_GET["title"];
$xaxis = $_GET["xaxis"];
$yaxis = $_GET["yaxis"];
$threeD = $_GET["3d"];
$horiz = $_GET["horiz"];

if ($data) {
	if (! $x) {
		$x=300;
	}
	if (! $y) {
		$y=200;
	}
	if (! $color) {
		$color=0x00ff00;
	}
	if (! $title) {
		$title="My Chart";
	}
	if (! $xaxis) {
		$xaxis="x-Axis";
	}
	if (! $yaxis) {
		$yaxis="y-Axis";
	}
	$c = new XYChart($x, $y);
	$c->setPlotArea(50, 50, $x-(30+.10*$x+$threeD), $y-(75+.10*$y));
	$c->addTitle($title);
	$c->yAxis->setTitle($yaxis);
	$c->xAxis->setTitle($xaxis);
	if (! $startcolor) {
		$startcolor=$color;
	}
	if ($horiz) {
		$barLayerObj = $c->addBarLayer($data,
			$c->gradientColor(0,0,$x,0,$startcolor,$color));
	} else {
		$barLayerObj = $c->addBarLayer($data,
			$c->gradientColor(0,$y,0,0,$startcolor,$color));
	}
	if ($threeD) {
		$barLayerObj->set3D($threeD);
	}
	$c->xAxis->setLabels($labels);
	$c->swapXY($horiz);
	$barLayerObj->setAggregateLabelFormat("{value}");
	$barLayerObj->setAggregateLabelStyle("timesbi.ttf", 10, $labelcolor);
	header("Content-type: image/png");
	print($c->makeChart2(PNG));
}