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128 lines
4.1 KiB
128 lines
4.1 KiB
<?php declare(strict_types = 0);
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/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (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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/*
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* Class to draw graph line. Single data points will be drawn as points instead of lines.
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*/
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class CSvgGraphMetricsLine extends CSvgGroup {
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private $metric_paths;
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private $metric;
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private $options;
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public function __construct(array $metric_paths, array $metric) {
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parent::__construct();
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$this->metric_paths = $metric_paths;
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$this->metric = $metric;
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$this->options = $metric['options'] + [
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'transparency' => CSvgGraph::SVG_GRAPH_DEFAULT_TRANSPARENCY,
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'width' => CSvgGraph::SVG_GRAPH_DEFAULT_LINE_WIDTH,
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'color' => CSvgGraph::SVG_GRAPH_DEFAULT_COLOR,
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'type' => SVG_GRAPH_TYPE_LINE,
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'order' => 1
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];
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// Minimal point size is 3 to make single data points visible even for thin lines.
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$this->options['pointsize'] = max($this->options['width'], 3);
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}
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public function makeStyles(): array {
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$item_css_class = CSvgGraphLine::ZBX_STYLE_CLASS.'-'.$this->metric['itemid'].'-'.$this->options['order'];
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$this
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->addClass(CSvgGraphLine::ZBX_STYLE_CLASS)
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->addClass($item_css_class);
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return [
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'.'.CSvgGraphLine::ZBX_STYLE_CLASS => [
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'fill' => 'none'
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],
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'.'.$item_css_class => [
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'stroke-opacity' => $this->options['transparency'] * 0.1,
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'stroke' => $this->options['color'],
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'stroke-width' => $this->options['width'] * ($this->options['approximation'] == APPROXIMATION_ALL ? 2 : 1)
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] + ($this->options['type'] == SVG_GRAPH_TYPE_LINE ? ['stroke-linejoin' => 'round'] : []),
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'.'.$item_css_class.' circle' => [
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'fill-opacity' => $this->options['transparency'] * 0.1,
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'fill' => $this->options['color'],
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'stroke-width' => 0
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],
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'.'.$item_css_class.' .'.CSvgGraphArea::ZBX_STYLE_CLASS => [
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'fill-opacity' => $this->options['fill'] * 0.1,
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'fill' => $this->options['color'],
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'stroke-opacity' => 0
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],
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'.'.$item_css_class.' .'.CSvgGraphLine::ZBX_STYLE_LINE_AUXILIARY => [
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'stroke-width' => $this->options['width'],
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'opacity' => $this->options['transparency'] * 0.1
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]
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];
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}
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protected function draw(): void {
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$this->addItem(
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(new CSvgCircle(-10, -10, $this->options['width'] + 4))
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->addClass(CSvgTag::ZBX_STYLE_GRAPH_HIGHLIGHTED_VALUE)
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);
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foreach ($this->metric_paths as $metric_path) {
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// Draw single data point paths as circles instead of lines.
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if (count($metric_path) > 1) {
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$this->addItem(new CSvgGraphLine($metric_path['line'], $this->metric));
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if (array_key_exists('min', $metric_path)) {
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$this->addItem(
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(new CSvgGraphLine($metric_path['min'], $this->metric, false))
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->addClass(CSvgGraphLine::ZBX_STYLE_LINE_AUXILIARY)
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);
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$this->addItem(
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(new CSvgGraphLine($metric_path['max'], $this->metric, false))
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->addClass(CSvgGraphLine::ZBX_STYLE_LINE_AUXILIARY)
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);
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}
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}
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else {
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$this->addItem(
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(new CSvgCircle($metric_path['line'][0][0], $metric_path['line'][0][1], $this->options['pointsize']))
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->setAttribute('label', $metric_path['line'][0][2])
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);
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}
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if (array_key_exists('fill', $metric_path)) {
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$this->addItem(new CSvgGraphArea($metric_path['fill'], $this->metric));
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}
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}
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}
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public function toString($destroy = true): string {
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$this
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->setAttribute('data-set', $this->options['type'] == SVG_GRAPH_TYPE_LINE ? 'line' : 'staircase')
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->setAttribute('data-metric', $this->metric['name'])
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->setAttribute('data-color', $this->options['color'])
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->draw();
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return parent::toString($destroy);
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}
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}
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