/
GraphViz.php
139 lines (119 loc) · 4.91 KB
/
GraphViz.php
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<?php
/**
* User: Paris Theofanidis
* Date: 03/07/16
* Time: 01:22
*/
namespace ptheofan\statemachine;
use Alom\Graphviz\Digraph;
use ptheofan\statemachine\interfaces\StateMachineState;
use yii\base\BaseObject;
class GraphViz extends BaseObject
{
/**
* @var array
*/
public $profile = [];
/**
* @param StateMachineState $state
* @param $profile
* @return array
*/
protected function renderState(StateMachineState $state, $profile)
{
$p = $profile['default'];
if ($state->isInitial()) {
$p = array_merge($p, $profile['initial']);
} elseif ($state->isFinal()) {
$p = array_merge($p, $profile['final']);
} elseif ($state->isIntermediate()) {
$p = array_merge($p, $profile['intermediate']);
}
$fillcolor = $p['fillcolor'];
$style = $p['style'];
$shape = $p['shape'];
$fontcolor = $p['fontcolor'];
$tableTypeIndicatorColor = $p['tableTypeIndicatorColor'];
$tableTypeValueColor = $p['tableTypeValueColor'];
$onEnter = [];
foreach ($state->getEnterCommands() as $enterCommand) {
$onEnter[] = $enterCommand->shortName();
}
$onExit = [];
foreach ($state->getExitCommands() as $exitCommand) {
$onExit[] = $exitCommand->shortName();
}
$stateTpl = '<table cellpadding="0" cellspacing="0" cellborder="0" border="0">';
$stateTpl .= '<tr><td colspan="2">{stateLabel}</td></tr>';
if (!empty($onEnter))
$stateTpl .= '<tr><td valign="top" align="right"><font point-size="8" color="'.$tableTypeIndicatorColor.'">onEnter: </font></td><td align="left"><font point-size="8" color="'.$tableTypeValueColor.'">{onEnter}</font></td></tr>';
if (!empty($onExit))
$stateTpl .= '<tr><td valign="top" align="right"><font point-size="8" color="'.$tableTypeIndicatorColor.'">onExit: </font></td><td align="left"><font point-size="8" color="'.$tableTypeValueColor.'">{onExit}</font></td></tr>';
$stateTpl .= '</table>';
$label = strtr($stateTpl, [
'{stateLabel}' => $state->getValue(),
'{onEnter}' => empty($onEnter) ? '-' : implode('<br align="left"/>', $onEnter) . '<br align="left"/>',
'{onExit}' => empty($onExit) ? '-' : implode('<br align="left"/>', $onExit) . '<br align="left"/>',
]);
return [
'label' => chr(1) . '<'.$label.'>',
'shape' => $shape,
'margin' => 0.1,
'fontsize' => 10,
'fontname' => 'Helvetica Neue',
'fontcolor' => $fontcolor,
'fillcolor' => $fillcolor,
'style' => $style,
];
}
/**
* Will return the script required by GraphViz (dot) to render the graph
*
* @param StateMachine $sm
* @return string
*/
public function render(StateMachine $sm)
{
$graph = new Digraph('G');
$graph->set('truecolor', true);
foreach ($sm->getStates() as $state) {
$graph->node($state->getValue(), $this->renderState($state, $this->profile['states']));
}
foreach ($sm->getStates() as $state) {
/** @var Event[] $connectors */
$connectors = array_merge($state->getEvents(), $state->getTimeOuts());
foreach ($connectors as $event) {
$p = $this->profile['events']['default'];
// We now have conditional and no conditional events.
// TODO: Represent the conditions of the event on the graph
// foreach ($this->profile['events']['exclusiveRoles'] as $exclusiveRole => $roleProfile) {
// if ($event->isExclusiveTo($exclusiveRole)) {
// $p = array_merge($p, $roleProfile);
// break;
// }
// }
if ($event instanceof Timeout) {
$p = array_merge($p, $this->profile['events']['timeout']);
} elseif ($event->isRefresh()) {
$p = array_merge($p, $this->profile['events']['refresh']);
}
$fontcolor = $p['fontcolor'];
$fillcolor = $p['fillcolor'];
$color = $p['color'];
$style = $p['style'];
$graph->edge([$state->getValue(), $event->getTarget()], [
'label' => chr(1) . '<<table border="0" cellspacing="0" cellpadding="2"><tr><td>' . $event->getLabel() . '</td></tr></table>>',
'margin' => 10,
'arrowsize' => 0.6,
'fontsize' => 9,
'fontname' => 'Helvetica Neue',
'fontcolor' => $fontcolor,
'fillcolor' => $fillcolor,
'color' => $color,
'style' => $style,
]);
}
}
return $graph->render();
}
}