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<?php
/**
* webtrees: online genealogy
* Copyright (C) 2017 webtrees development team
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
namespace Fisharebest\Webtrees\Controller;
use Fisharebest\Webtrees\Filter;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Individual;
use Fisharebest\Webtrees\Theme;
use stdClass;
/**
* Base controller for all chart pages
*/
class ChartController extends PageController {
/** @var Individual Who is chart about? */
public $root;
/** @var string An error message, in case we cannot construct the chart */
public $error_message;
/** @var stdClass personbox dimensions */
private $box;
/**
* Create the chart controller
*/
public function __construct() {
parent::__construct();
$rootid = Filter::get('rootid', WT_REGEX_XREF);
$this->root = Individual::getInstance($rootid, $this->tree());
if (!$this->root) {
// Missing root individual? Show the chart for someone.
$this->root = $this->getSignificantIndividual();
}
if (!$this->root) {
http_response_code(404);
$this->error_message = I18N::translate('This individual does not exist or you do not have permission to view it.');
}
$this->box = new stdClass();
$this->box->width = Theme::theme()->parameter('chart-box-x');
$this->box->height = Theme::theme()->parameter('chart-box-y');
}
/**
* Get significant information from this page, to allow other pages such as
* charts and reports to initialise with the same records
*
* @return Individual
*/
public function getSignificantIndividual() {
if ($this->root) {
return $this->root;
} else {
return parent::getSignificantIndividual();
}
}
/**
* Find the direct-line ancestors of an individual. Array indexes are SOSA numbers.
*
* @param int $generations
*
* @return Individual[]
*/
public function sosaAncestors($generations) {
$ancestors = [
1 => $this->root,
];
// Subtract one generation, as this algorithm includes parents.
$max = pow(2, $generations - 1);
for ($i = 1; $i < $max; $i++) {
$ancestors[$i * 2] = null;
$ancestors[$i * 2 + 1] = null;
$person = $ancestors[$i];
if ($person) {
$family = $person->getPrimaryChildFamily();
if ($family) {
if ($family->getHusband()) {
$ancestors[$i * 2] = $family->getHusband();
}
if ($family->getWife()) {
$ancestors[$i * 2 + 1] = $family->getWife();
}
}
}
}
return $ancestors;
}
/**
* Function boxDimensions
*
* @return stdClass
*/
public function getBoxDimensions() {
return $this->box;
}
}
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