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Guilhem Lavaux 2024-11-19 08:02:04 +01:00
parent 4413528994
commit 1d90fbf296
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128
admin/phpMyAdmin/libraries/classes/Plugins/Schema/Svg/RelationStatsSvg.php Normal file
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<?php
/**
* Contains PhpMyAdmin\Plugins\Schema\Svg\RelationStatsSvg class
*/
declare(strict_types=1);
namespace PhpMyAdmin\Plugins\Schema\Svg;
use PhpMyAdmin\Plugins\Schema\RelationStats;
use function shuffle;
use function sqrt;
/**
* 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 SVG XML document.
*
* @see Svg::printElementLine
*/
class RelationStatsSvg extends RelationStats
{
/**
* @param Svg $diagram The SVG 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);
}
/**
* draws relation links and arrows shows foreign key relations
*
* @see PMA_SVG
*
* @param bool $showColor Whether to use one color per relation or not
*/
public function relationDraw($showColor): void
{
if ($showColor) {
$listOfColors = [
'#c00',
'#bbb',
'#333',
'#cb0',
'#0b0',
'#0bf',
'#b0b',
];
shuffle($listOfColors);
$color = $listOfColors[0];
} else {
$color = '#333';
}
$this->diagram->printElementLine(
'line',
$this->xSrc,
$this->ySrc,
$this->xSrc + $this->srcDir * $this->wTick,
$this->ySrc,
'stroke:' . $color . ';stroke-width:1;'
);
$this->diagram->printElementLine(
'line',
$this->xDest + $this->destDir * $this->wTick,
$this->yDest,
$this->xDest,
$this->yDest,
'stroke:' . $color . ';stroke-width:1;'
);
$this->diagram->printElementLine(
'line',
$this->xSrc + $this->srcDir * $this->wTick,
$this->ySrc,
$this->xDest + $this->destDir * $this->wTick,
$this->yDest,
'stroke:' . $color . ';stroke-width:1;'
);
$root2 = 2 * sqrt(2);
$this->diagram->printElementLine(
'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,
'stroke:' . $color . ';stroke-width:2;'
);
$this->diagram->printElementLine(
'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,
'stroke:' . $color . ';stroke-width:2;'
);
$this->diagram->printElementLine(
'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,
'stroke:' . $color . ';stroke-width:2;'
);
$this->diagram->printElementLine(
'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,
'stroke:' . $color . ';stroke-width:2;'
);
}
}