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<?php
/*
** Zabbix
** Copyright (C) 2001-2018 Zabbix SIA
**
** 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.
**/
class CSvgGraphLine extends CSvgPath {
protected $path;
protected $itemid;
protected $item_name;
protected $units;
protected $host;
protected $options;
protected $add_label;
public function __construct($path, $metric) {
parent::__construct();
$this->add_label = true;
$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
];
}
public function makeStyles() {
$this
->addClass(CSvgTag::ZBX_STYLE_GRAPH_LINE)
->addClass(CSvgTag::ZBX_STYLE_GRAPH_LINE.'-'.$this->itemid.'-'.$this->options['order']);
$line_style = ($this->options['type'] == SVG_GRAPH_TYPE_LINE) ? ['stroke-linejoin' => 'round'] : [];
return [
'.'.CSvgTag::ZBX_STYLE_GRAPH_LINE => [
'fill' => 'none'
],
'.'.CSvgTag::ZBX_STYLE_GRAPH_LINE.'-'.$this->itemid.'-'.$this->options['order'] => [
'opacity' => $this->options['transparency'] * 0.1,
'stroke' => $this->options['color'],
'stroke-width' => $this->options['width']
] + $line_style
];
}
protected function draw() {
// drawMetricArea can be called with single data point.
if (count($this->path) > 1) {
$last_point = [0, 0];
foreach ($this->path as $i => $point) {
if ($i == 0) {
$this->moveTo($point[0], $point[1]);
}
else {
if ($this->options['type'] == SVG_GRAPH_TYPE_STAIRCASE) {
$this->lineTo($point[0], $last_point[1]);
}
$this->lineTo($point[0], $point[1]);
}
$last_point = $point;
}
}
}
public function toString($destroy = true) {
$this->draw();
if ($this->add_label && $this->path) {
$line_values = '';
foreach ($this->path as $point) {
$line_values .= ($line_values === '') ? $point[2] : ','.$point[2];
}
$this->setAttribute('label', $line_values);
}
return parent::toString($destroy);
}
}
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