<?php
#
# Copyright (C) 2008 Red Hat, Inc.
# Author: Andreas Thienemann <athienem@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library General Public License as published by
# the Free Software Foundation; version 2 only
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#

require_once('phplot-5.0.5/phplot.php');

// accept data to plot through phplot
function draw_stackedbar($chart_title, $legend, $ytitle, $data) {


	// Define general plot properties
	$data_colors = array('SkyBlue', 'green', 'orange', 'blue', 'purple', 'red', 'violet', 'azure1', 'yellow', 'DarkGreen');

	// Create the chart, write it to a newly created tmpfile.
	$output = tempnam('tmp/', 'plot');

	$plot = new PHPlot(900, 400);
	$plot->SetIsInline(True);

	//$plot->SetPrintImage(False);

	$plot->SetImageBorderType('plain');
	$plot->SetDataColors($data_colors);

	$plot->SetPlotType('stackedbars');
	$plot->SetDataType('text-data');
	$plot->SetDataValues($data);

	$plot->SetTitle($chart_title);
	$plot->SetYTitle($ytitle);
	$plot->SetLegend($legend);

	$plot->SetXTickLabelPos('none');
	$plot->SetXTickPos('none');

	$plot->SetLegendPixels(760, 40);
	$plot->SetMarginsPixels(100, 150, 50, 50);

	$plot->SetNumberFormat(',', '.');
	$plot->SetPrecisionY(0);
	$plot->SetYLabelType('data');

	$plot->SetOutputFile($output);
	$plot->DrawGraph();

	chmod($output, 0644);
	$target =  dirname($output).'/'.basename($output).'.png';
	if (rename($output, $target)) {
		return 'tmp/'.basename($target);
	} else {
		return False;
	}
}