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 CSvgGraphLine extends CSvgPath {

​

    public const ZBX_STYLE_CLASS = 'svg-graph-line';

    public const ZBX_STYLE_LINE_AUXILIARY = 'svg-graph-line-auxiliary';

​

    protected $path;

​

    protected $itemid;

    protected $item_name;

    protected $units;

    protected $host;

​

    protected $add_labels;

​

    protected $options;

​

    public function __construct(array $path, array $metric, bool $add_labels = true) {

        parent::__construct();

​

        $this->add_labels = $add_labels;

        $this->path = $path;

​

        $this->itemid = $metric['itemid'];

        $this->item_name = $metric['name'];

        $this->units = $metric['units'];

        $this->host = $metric['host'];

​

        $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

        ];

    }

​

    protected function draw(): void {

        if (count($this->path) > 1) {

            $last_point = [0, 0];

​

            foreach ($this->path as $index => $point) {

                if ($index == 0) {

                    $this->moveTo($point[0], $point[1]);

                }

                else {

                    if ($this->options['type'] == SVG_GRAPH_TYPE_STAIRCASE) {

                        $this->lineTo($point[0], $last_point[1]);