icingaweb2/library/Icinga/Chart/Graph/LineGraph.php

90 lines
2.7 KiB
PHP

<?php
// {{{ICINGA_LICENSE_HEADER}}}
/**
* This file is part of Icinga 2 Web.
*
* Icinga 2 Web - Head for multiple monitoring backends.
* Copyright (C) 2013 Icinga Development Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* @copyright 2013 Icinga Development Team <info@icinga.org>
* @license http://www.gnu.org/licenses/gpl-2.0.txt GPL, version 2
* @author Icinga Development Team <info@icinga.org>
*/
// {{{ICINGA_LICENSE_HEADER}}}
namespace Icinga\Chart\Graph;
use Icinga\Chart\Primitive\Drawable;
use Icinga\Chart\Primitive\Path;
use Icinga\Chart\Primitive\Circle;
use Icinga\Chart\Primitive\Styleable;
use Icinga\Chart\Render\RenderContext;
class LineGraph extends Styleable implements Drawable
{
private $showDataPoints = false;
public function __construct(array $dataset)
{
usort($dataset, array($this, 'sortByX'));
$this->dataset = $dataset;
}
public function setShowDataPoints($bool)
{
$this->showDataPoints = true;
}
private function sortByX(array $v1, array $v2) {
if($v1[0] === $v2[0]) {
return 0;
}
return ($v1[0] < $v2[0]) ? -1 : 1;
}
public function toSvg(RenderContext $ctx)
{
$path = new Path($this->dataset);
$path->setStrokeColor($this->strokeColor);
$path->setStrokeWidth($this->strokeWidth);
$group = $path->toSvg($ctx);
if ($this->showDataPoints === true) {
foreach ($this->dataset as $point) {
$dot = new Circle($point[0], $point[1], 25);
$dot->setFill($this->strokeColor);
$group->appendChild($dot->toSvg($ctx));
}
}
return $group;
}
public function setStyleFromConfig($cfg)
{
foreach ($cfg as $elem=>$value) {
if ($elem === 'color') {
$this->setStrokeColor($value);
} else if ($elem === 'width') {
$this->setStrokeWidth($value);
} else if ($elem === 'showPoints') {
$this->setShowDataPoints($value);
}
}
}
}