/**
* Function: getBoundingBox
*
* Returns the bounding box for the rotated rectangle.
*/
static function getBoundingBox($rect, $rotation)
{
$result = null;
if ($rect != null && $rotation != null && $rotation != 0) {
$rad = mxUtils::toRadians($rotation);
$cos = cos($rad);
$sin = sin($rad);
$cx = new mxPoint($rect->x + $rect->width / 2, $rect->y + $rect->height / 2);
$p1 = new mxPoint($rect->x, $rect->y);
$p2 = new mxPoint($rect->x + $rect->width, $rect->y);
$p3 = new mxPoint($p2->x, $rect->y + $rect->height);
$p4 = new mxPoint($rect->x, $p3->y);
$p1 = mxUtils::getRotatedPoint($p1, $cos, $sin, $cx);
$p2 = mxUtils::getRotatedPoint($p2, $cos, $sin, $cx);
$p3 = mxUtils::getRotatedPoint($p3, $cos, $sin, $cx);
$p4 = mxUtils::getRotatedPoint($p4, $cos, $sin, $cx);
$result = new mxRectangle($p1->x, $p1->y, 0, 0);
$result . add(new mxRectangle($p2->x, $p2->y, 0, 0));
$result . add(new mxRectangle($p3->x, $p3->y, 0, 0));
$result . add(new mxRectangle($p4->x, $p4->y, 0, 0));
}
return $result;
}