* @since 2.0.8
*/
class Svg extends BaseObject
{
/**
* @var int Max X coordinate
*/
public $x = 1920;
/**
* @var int Max Y coordinate
*/
public $y = 40;
/**
* @var string Stroke color
*/
public $stroke = '#1e6823';
/**
* @var array Listen messages panels
*/
public $listenMessages = ['log', 'profiling'];
/**
* @var array Color indicators svg graph.
*/
public $gradient = [
10 => '#d6e685',
60 => '#8cc665',
90 => '#44a340',
100 => '#1e6823'
];
/**
* @var string Svg template
*/
public $template = '';
/**
* ```php
* [
* [x, y]
* ]
* ```
* @var array Each point is define by a X and a Y coordinate.
*/
protected $points = [];
/**
* @var TimelinePanel
*/
protected $panel;
/**
* @inheritdoc
*/
public function __construct(TimelinePanel $panel, $config = [])
{
parent::__construct($config);
$this->panel = $panel;
foreach ($this->listenMessages as $panel) {
if (isset($this->panel->module->panels[$panel]->data['messages'])) {
$this->addPoints($this->panel->module->panels[$panel]->data['messages']);
}
}
}
/**
* @return string
*/
public function __toString()
{
if ($this->points === []) {
return '';
}
return strtr($this->template, [
'{x}' => StringHelper::normalizeNumber($this->x),
'{y}' => StringHelper::normalizeNumber($this->y),
'{stroke}' => $this->stroke,
'{polygon}' => $this->polygon(),
'{polyline}' => $this->polyline(),
'{linearGradient}' => $this->linearGradient()
]);
}
/**
* @return bool Has points
*/
public function hasPoints()
{
return ($this->points !== []);
}
/**
* @param array $messages log messages. See [[Logger::messages]] for the structure
* @return int added points
*/
protected function addPoints($messages)
{
$hasPoints = $this->hasPoints();
$memory = $this->panel->memory / 100; // 1 percent memory
$yOne = $this->y / 100; // 1 percent Y coordinate
$xOne = $this->panel->duration / $this->x; // 1 percent X coordinate
$i = 0;
foreach ($messages as $message) {
if (empty($message[5])) {
break;
}
++$i;
$this->points[] = [
($message[3] * 1000 - $this->panel->start) / $xOne,
$this->y - ($message[5] / $memory * $yOne),
];
}
if ($hasPoints && $i) {
usort($this->points, function ($a, $b) {
return ($a[0] < $b[0]) ? -1 : 1;
});
}
return $i;
}
/**
* @return string Points attribute for polygon path
*/
protected function polygon()
{
$str = "0 $this->y ";
foreach ($this->points as $point) {
list($x, $y) = $point;
$str .= "{$x} {$y} ";
}
$str .= $this->x - 0.001 . " {$y} {$this->x} {$this->y}";
return StringHelper::normalizeNumber($str);
}
/**
* @return string Points attribute for polyline path
*/
protected function polyline()
{
$str = "0 $this->y ";
foreach ($this->points as $point) {
list($x, $y) = $point;
$str .= "{$x} {$y} ";
}
$str .= "$this->x {$y}";
return StringHelper::normalizeNumber($str);
}
/**
* @return string
*/
protected function linearGradient()
{
$gradient = '';
foreach ($this->gradient as $percent => $color) {
$gradient .= '';
}
return $gradient . '';
}
}