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<?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * Contains PhpMyAdmin\Plugins\Schema\Eps\RelationStatsEps class * * @package PhpMyAdmin */ declare(strict_types=1); namespace PhpMyAdmin\Plugins\Schema\Eps; use PhpMyAdmin\Plugins\Schema\RelationStats; /** * Relation preferences/statistics * * This class fetches the table master and foreign fields positions * and helps in generating the Table references and then connects * master table's master field to foreign table's foreign key * in EPS document. * * @package PhpMyAdmin * @name Relation_Stats_Eps * @see PMA_EPS */ class RelationStatsEps extends RelationStats { /** * The "PhpMyAdmin\Plugins\Schema\Eps\RelationStatsEps" constructor * * @param Eps $diagram The EPS diagram * @param string $master_table The master table name * @param string $master_field The relation field in the master table * @param string $foreign_table The foreign table name * @param string $foreign_field The relation field in the foreign table */ public function __construct( $diagram, $master_table, $master_field, $foreign_table, $foreign_field ) { $this->wTick = 10; parent::__construct( $diagram, $master_table, $master_field, $foreign_table, $foreign_field ); $this->ySrc += 10; $this->yDest += 10; } /** * draws relation links and arrows * shows foreign key relations * * @see PMA_EPS * * @return void */ public function relationDraw() { // draw a line like -- to foreign field $this->diagram->line( $this->xSrc, $this->ySrc, $this->xSrc + $this->srcDir * $this->wTick, $this->ySrc, 1 ); // draw a line like -- to master field $this->diagram->line( $this->xDest + $this->destDir * $this->wTick, $this->yDest, $this->xDest, $this->yDest, 1 ); // draw a line that connects to master field line and foreign field line $this->diagram->line( $this->xSrc + $this->srcDir * $this->wTick, $this->ySrc, $this->xDest + $this->destDir * $this->wTick, $this->yDest, 1 ); $root2 = 2 * sqrt(2); $this->diagram->line( $this->xSrc + $this->srcDir * $this->wTick * 0.75, $this->ySrc, $this->xSrc + $this->srcDir * (0.75 - 1 / $root2) * $this->wTick, $this->ySrc + $this->wTick / $root2, 1 ); $this->diagram->line( $this->xSrc + $this->srcDir * $this->wTick * 0.75, $this->ySrc, $this->xSrc + $this->srcDir * (0.75 - 1 / $root2) * $this->wTick, $this->ySrc - $this->wTick / $root2, 1 ); $this->diagram->line( $this->xDest + $this->destDir * $this->wTick / 2, $this->yDest, $this->xDest + $this->destDir * (0.5 + 1 / $root2) * $this->wTick, $this->yDest + $this->wTick / $root2, 1 ); $this->diagram->line( $this->xDest + $this->destDir * $this->wTick / 2, $this->yDest, $this->xDest + $this->destDir * (0.5 + 1 / $root2) * $this->wTick, $this->yDest - $this->wTick / $root2, 1 ); } }