Zabbix

<?php declare(strict_types = 0);

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

​

/*

 * Class to draw graph line. Single data points will be drawn as points instead of lines.

 */

class CSvgGraphMetricsLine extends CSvgGroup {

​

    private $metric_paths;

    private $metric;

​

    private $options;

​

    public function __construct(array $metric_paths, array $metric) {

        parent::__construct();

​

        $this->metric_paths = $metric_paths;

        $this->metric = $metric;

​

        $this->options = $metric['options'] + [

            'transparency' => CSvgGraph::SVG_GRAPH_DEFAULT_TRANSPARENCY,

            'width' => CSvgGraph::SVG_GRAPH_DEFAULT_LINE_WIDTH,

            'color' => CSvgGraph::SVG_GRAPH_DEFAULT_COLOR,

            'type' => SVG_GRAPH_TYPE_LINE,

            'order' => 1

        ];

​

        // Minimal point size is 3 to make single data points visible even for thin lines.

        $this->options['pointsize'] = max($this->options['width'], 3);

    }

​

    public function makeStyles(): array {

        $item_css_class = CSvgGraphLine::ZBX_STYLE_CLASS.'-'.$this->metric['itemid'].'-'.$this->options['order'];

​

        $this

            ->addClass(CSvgGraphLine::ZBX_STYLE_CLASS)

            ->addClass($item_css_class);

​

        return [

            '.'.CSvgGraphLine::ZBX_STYLE_CLASS => [

                'fill' => 'none'

            ],

            '.'.$item_css_class => [

                'stroke-opacity' => $this->options['transparency'] * 0.1,

                'stroke' => $this->options['color'],

                'stroke-width' => $this->options['width'] * ($this->options['approximation'] == APPROXIMATION_ALL ? 2 : 1)

            ] + ($this->options['type'] == SVG_GRAPH_TYPE_LINE ? ['stroke-linejoin' => 'round'] : []),

            '.'.$item_css_class.' circle' => [

                'fill-opacity' => $this->options['transparency'] * 0.1,

                'fill' => $this->options['color'],