124 lines
3.2 KiB
PHP
124 lines
3.2 KiB
PHP
<?php
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// {{{ICINGA_LICENSE_HEADER}}}
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/**
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* This file is part of Icinga 2 Web.
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*
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* Icinga 2 Web - Head for multiple monitoring backends.
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* Copyright (C) 2013 Icinga Development Team
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* @copyright 2013 Icinga Development Team <info@icinga.org>
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* @license http://www.gnu.org/licenses/gpl-2.0.txt GPL, version 2
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* @author Icinga Development Team <info@icinga.org>
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*/
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// {{{ICINGA_LICENSE_HEADER}}}
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namespace Icinga\Chart;
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use Icinga\Chart\Palette;
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use Icinga\Chart\Primitive\Canvas;
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use Icinga\Chart\Primitive\Drawable;
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use Icinga\Chart\Primitive\Rect;
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use Icinga\Chart\Primitive\Text;
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use Icinga\Chart\Render\LayoutBox;
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use Icinga\Chart\Render\RenderContext;
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use Icinga\Chart\SVGRenderer;
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class Legend implements Drawable
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{
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private $internalCtr = 0;
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/**
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*
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* Content of this legend
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*
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* @var array
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*/
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private $dataset = array();
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/**
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* Maximum space this legend can take in percent
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*
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* Is intelligently applied depending on the location of the legend.
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*
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* @var float
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*/
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public $maxVolume = 0.05;
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/**
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* Where this legend is displayed
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*
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* Possible values are: left, right, top, bottom
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*
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* @var string
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*/
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public $location = 'bottom';
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/**
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* The style-palette this legend is using
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*
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* @var Palette
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*/
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public $palette;
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/**
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* Create a new legend
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*/
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public function __construct()
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{
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}
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/**
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* Set the content to be displayed by this legend
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*
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* @param array $data Array of key-value pairs representing the labels and their colour
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*/
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public function addDataset(array $dataset)
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{
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if (!isset($dataset['label'])) {
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$dataset['label'] = 'Dataset ' . (++$this->internalCtr);
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}
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$this->dataset[$dataset['color']] = $dataset['label'];
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}
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function toSvg(RenderContext $ctx)
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{
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$outer = new Canvas('legend', new LayoutBox(0, 95, 100, 100));
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$outer->getLayout()->setPadding(2,10,2,10);
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$step = 100/count($this->dataset);
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$top = 0;
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foreach ($this->dataset as $color => $text) {
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$colorBox = new Rect($top, 0, 2, 2);
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$colorBox->setFill($color);
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$colorBox->setStrokeWidth(2);
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$outer->addElement($colorBox);
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$textBox = new Text($top+5 , 1.8 , $text);
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$outer->addElement($textBox);
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$top += $step;
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}
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$ctx->keepRatio();
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$svg = $outer->toSvg($ctx);
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$ctx->ignoreRatio();
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return $svg;
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}
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}
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