444 lines
10 KiB
PHP
444 lines
10 KiB
PHP
<?php
|
|
/* Icinga Web 2 | (c) 2017 Icinga Development Team | GPLv2+ */
|
|
|
|
namespace Icinga\Chart;
|
|
|
|
use Icinga\Web\Url;
|
|
|
|
/** Donut chart implementation */
|
|
class Donut
|
|
{
|
|
/**
|
|
* Big label in the middle of the donut, color is critical (red)
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $labelBig;
|
|
|
|
/**
|
|
* Url behind the big label
|
|
*
|
|
* @var Url
|
|
*/
|
|
protected $labelBigUrl;
|
|
|
|
/**
|
|
* Whether the big label shall be eye-catching
|
|
*
|
|
* @var bool
|
|
*/
|
|
protected $labelBigEyeCatching = true;
|
|
|
|
/**
|
|
* Small label in the lower part of the donuts hole
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $labelSmall;
|
|
|
|
/**
|
|
* Thickness of the donut ring
|
|
*
|
|
* @var int
|
|
*/
|
|
protected $thickness = 6;
|
|
|
|
/**
|
|
* Radius based of 100 to simplify the calculations
|
|
*
|
|
* 100 / (2 * M_PI)
|
|
*
|
|
* @var float
|
|
*/
|
|
protected $radius = 15.9154943092;
|
|
|
|
/**
|
|
* Color of the hole in the donut
|
|
*
|
|
* Transparent by default so it can be placed anywhere with ease
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $centerColor = 'transparent';
|
|
|
|
/**
|
|
* The different colored parts that represent the data
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $slices = array();
|
|
|
|
/**
|
|
* The total amount of data units
|
|
*
|
|
* @var int
|
|
*/
|
|
protected $count = 0;
|
|
|
|
/**
|
|
* Adds a colored part that represent the data
|
|
*
|
|
* @param integer $data Units of data
|
|
* @param array $attributes HTML attributes for this slice. (For example ['class' => 'slice-state-ok'])
|
|
*
|
|
* @return $this
|
|
*/
|
|
public function addSlice($data, $attributes = array())
|
|
{
|
|
$this->slices[] = array($data, $attributes);
|
|
|
|
$this->count += $data;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Set the thickness for this Donut
|
|
*
|
|
* @param integer $thickness
|
|
*
|
|
* @return $this
|
|
*/
|
|
public function setThickness($thickness)
|
|
{
|
|
$this->thickness = $thickness;
|
|
|
|
return $this;
|
|
}
|
|
/**
|
|
* Get the thickness for this Donut
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getThickness()
|
|
{
|
|
return $this->thickness;
|
|
}
|
|
|
|
/**
|
|
* Set the center color for this Donut
|
|
*
|
|
* @param string $centerColor
|
|
*
|
|
* @return $this
|
|
*/
|
|
public function setCenterColor($centerColor)
|
|
{
|
|
$this->centerColor = $centerColor;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Get the center color for this Donut
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getCenterColor()
|
|
{
|
|
return $this->centerColor;
|
|
}
|
|
|
|
/**
|
|
* Set the text of the big label
|
|
*
|
|
* @param string $labelBig
|
|
*
|
|
* @return $this
|
|
*/
|
|
public function setLabelBig($labelBig)
|
|
{
|
|
$this->labelBig = $labelBig;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Get the text of the big label
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getLabelBig()
|
|
{
|
|
return $this->labelBig;
|
|
}
|
|
|
|
/**
|
|
* Set the url behind the big label
|
|
*
|
|
* @param Url $labelBigUrl
|
|
*
|
|
* @return $this
|
|
*/
|
|
public function setLabelBigUrl($labelBigUrl)
|
|
{
|
|
$this->labelBigUrl = $labelBigUrl;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Get the url behind the big label
|
|
*
|
|
* @return Url
|
|
*/
|
|
public function getLabelBigUrl()
|
|
{
|
|
return $this->labelBigUrl;
|
|
}
|
|
|
|
/**
|
|
* Get whether the big label shall be eye-catching
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function getLabelBigEyeCatching()
|
|
{
|
|
return $this->labelBigEyeCatching;
|
|
}
|
|
|
|
/**
|
|
* Set whether the big label shall be eye-catching
|
|
*
|
|
* @param bool $labelBigEyeCatching
|
|
*
|
|
* @return $this
|
|
*/
|
|
public function setLabelBigEyeCatching($labelBigEyeCatching = true)
|
|
{
|
|
$this->labelBigEyeCatching = $labelBigEyeCatching;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Set the text of the small label
|
|
*
|
|
* @param string $labelSmall
|
|
*
|
|
* @return $this
|
|
*/
|
|
public function setLabelSmall($labelSmall)
|
|
{
|
|
$this->labelSmall = $labelSmall;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Get the text of the small label
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getLabelSmall()
|
|
{
|
|
return $this->labelSmall;
|
|
}
|
|
|
|
/**
|
|
* Put together all slices of this Donut
|
|
*
|
|
* @return array $svg
|
|
*/
|
|
protected function assemble()
|
|
{
|
|
// svg tag containing the ring
|
|
$svg = array(
|
|
'tag' => 'svg',
|
|
'attributes' => array(
|
|
'xmlns' => 'http://www.w3.org/2000/svg',
|
|
'viewbox' => '0 0 40 40',
|
|
'class' => 'donut-graph'
|
|
),
|
|
'content' => array()
|
|
);
|
|
|
|
// Donut hole
|
|
$svg['content'][] = array(
|
|
'tag' => 'circle',
|
|
'attributes' => array(
|
|
'cx' => 20,
|
|
'cy' => 20,
|
|
'r' => sprintf('%F', $this->radius),
|
|
'fill' => $this->getCenterColor()
|
|
)
|
|
);
|
|
|
|
// When there is no data show gray circle
|
|
$svg['content'][] = array(
|
|
'tag' => 'circle',
|
|
'attributes' => array(
|
|
'cx' => 20,
|
|
'cy' => 20,
|
|
'r' => sprintf('%F', $this->radius),
|
|
'fill' => $this->getCenterColor(),
|
|
'stroke-width' => $this->getThickness(),
|
|
'class' => 'slice-state-not-checked'
|
|
)
|
|
);
|
|
|
|
$slices = $this->slices;
|
|
|
|
if ($this->count !== 0) {
|
|
array_walk($slices, function (&$slice) {
|
|
$slice[0] = round(100 / $this->count * $slice[0], 2);
|
|
});
|
|
}
|
|
|
|
// on 0 the donut would start at "3 o'clock" and the offset shifts counterclockwise
|
|
$offset = 25;
|
|
|
|
foreach ($slices as $slice) {
|
|
$svg['content'][] = array(
|
|
'tag' => 'circle',
|
|
'attributes' => $slice[1] + array(
|
|
'cx' => 20,
|
|
'cy' => 20,
|
|
'r' => sprintf('%F', $this->radius),
|
|
'fill' => 'transparent',
|
|
'stroke-width' => $this->getThickness(),
|
|
'stroke-dasharray' => sprintf('%F', $slice[0]) . ' ' . sprintf('%F', (99.9 - $slice[0])), // 99.9 prevents gaps (slight overlap)
|
|
'stroke-dashoffset' => sprintf('%F', $offset)
|
|
)
|
|
);
|
|
// negative values shift in the clockwise direction
|
|
$offset -= $slice[0];
|
|
}
|
|
|
|
$result = array(
|
|
'tag' => 'div',
|
|
'content' => array($svg)
|
|
);
|
|
|
|
$labelBig = (string) $this->getLabelBig();
|
|
$labelSmall = (string) $this->getLabelSmall();
|
|
|
|
if ($labelBig !== '' || $labelSmall !== '') {
|
|
$labels = array(
|
|
'tag' => 'div',
|
|
'attributes' => array(
|
|
'class' => 'donut-label'
|
|
),
|
|
'content' => array()
|
|
);
|
|
|
|
if ($labelBig !== '') {
|
|
$labels['content'][] =
|
|
array(
|
|
'tag' => 'a',
|
|
'attributes' => array(
|
|
'href' => $this->getLabelBigUrl() ? $this->getLabelBigUrl()->getAbsoluteUrl() : null,
|
|
'class' => $this->labelBigEyeCatching
|
|
? 'donut-label-big donut-label-big-eye-catching'
|
|
: 'donut-label-big'
|
|
),
|
|
'content' => $this->shortenLabel($labelBig)
|
|
);
|
|
}
|
|
|
|
if ($labelSmall !== '') {
|
|
$labels['content'][] = array(
|
|
'tag' => 'p',
|
|
'attributes' => array(
|
|
'class' => 'donut-label-small',
|
|
'x' => '50%',
|
|
'y' => '50%'
|
|
),
|
|
'content' => $labelSmall
|
|
);
|
|
}
|
|
|
|
$result['content'][] = $labels;
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Shorten the label to 3 digits if it is numeric
|
|
*
|
|
* 10 => 10 ... 1111 => ~1k ... 1888 => ~2k
|
|
*
|
|
* @param int|string $label
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function shortenLabel($label)
|
|
{
|
|
if (is_numeric($label) && strlen($label) > 3) {
|
|
return '~' . substr(round($label, -3), 0, 1) . 'k';
|
|
}
|
|
|
|
return $label;
|
|
}
|
|
|
|
protected function encode($content)
|
|
{
|
|
if (version_compare(PHP_VERSION, '5.4.0') >= 0) {
|
|
$replaceFlags = ENT_COMPAT | ENT_SUBSTITUTE | ENT_HTML5;
|
|
} else {
|
|
$replaceFlags = ENT_COMPAT | ENT_IGNORE;
|
|
}
|
|
|
|
return htmlspecialchars($content, $replaceFlags, 'UTF-8', true);
|
|
}
|
|
|
|
protected function renderAttributes(array $attributes)
|
|
{
|
|
$html = array();
|
|
|
|
foreach ($attributes as $name => $value) {
|
|
if ($value === null) {
|
|
continue;
|
|
}
|
|
|
|
if (is_bool($value) && $value) {
|
|
$html[] = $name;
|
|
continue;
|
|
}
|
|
|
|
if (is_array($value)) {
|
|
$value = implode(' ', $value);
|
|
}
|
|
|
|
$html[] = "$name=\"" . $this->encode($value) . '"';
|
|
}
|
|
|
|
return implode(' ', $html);
|
|
}
|
|
|
|
protected function renderContent(array $element)
|
|
{
|
|
$tag = $element['tag'];
|
|
$attributes = isset($element['attributes']) ? $element['attributes'] : array();
|
|
$content = isset($element['content']) ? $element['content'] : null;
|
|
|
|
$html = array(
|
|
// rtrim because attributes may be empty
|
|
rtrim("<$tag " . $this->renderAttributes($attributes))
|
|
. ">"
|
|
);
|
|
|
|
if ($content !== null) {
|
|
if (is_array($content)) {
|
|
foreach ($content as $child) {
|
|
$html[] = is_array($child) ? $this->renderContent($child) : $this->encode($child);
|
|
}
|
|
} else {
|
|
$html[] = $this->encode($content);
|
|
}
|
|
}
|
|
|
|
$html[] = "</$tag>";
|
|
|
|
return implode("\n", $html);
|
|
}
|
|
|
|
public function render()
|
|
{
|
|
$svg = $this->assemble();
|
|
|
|
return $this->renderContent($svg);
|
|
}
|
|
}
|