135 lines
No EOL
3.8 KiB
PHP
135 lines
No EOL
3.8 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Contains Relation_Stats_Eps class
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*
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* @package PhpMyAdmin
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*/
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if (! defined('PHPMYADMIN')) {
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exit;
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}
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require_once 'libraries/plugins/schema/RelationStats.class.php';
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/**
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* Relation preferences/statistics
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*
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* This class fetches the table master and foreign fields positions
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* and helps in generating the Table references and then connects
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* master table's master field to foreign table's foreign key
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* in EPS document.
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*
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* @package PhpMyAdmin
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* @name Relation_Stats_Eps
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* @see PMA_EPS
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*/
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class Relation_Stats_Eps extends RelationStats
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{
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/**
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* The "Relation_Stats_Eps" constructor
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*
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* @param string $master_table The master table name
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* @param string $master_field The relation field in the master table
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* @param string $foreign_table The foreign table name
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* @param string $foreign_field The relation field in the foreign table
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*/
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function __construct(
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$master_table, $master_field, $foreign_table, $foreign_field
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) {
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$this->wTick = 10;
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parent::__construct(
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$master_table, $master_field, $foreign_table, $foreign_field
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);
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$this->ySrc += 10;
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$this->yDest += 10;
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}
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/**
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* draws relation links and arrows
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* shows foreign key relations
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*
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* @param boolean $showColor Whether to use one color per relation or not
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*
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* @global object $eps The current EPS document
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*
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* @access public
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* @see PMA_EPS
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*
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* @return void
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*/
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public function relationDraw($showColor)
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{
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global $eps;
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/* Commented because $color unused.
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if ($showColor) {
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$listOfColors = array(
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'red',
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'grey',
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'black',
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'yellow',
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'green',
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'cyan',
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'orange'
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);
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shuffle($listOfColors);
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$color = $listOfColors[0];
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} else {
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$color = 'black';
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}*/
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// draw a line like -- to foreign field
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$eps->line(
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$this->xSrc,
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$this->ySrc,
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$this->xSrc + $this->srcDir * $this->wTick,
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$this->ySrc,
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1
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);
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// draw a line like -- to master field
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$eps->line(
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$this->xDest + $this->destDir * $this->wTick,
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$this->yDest,
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$this->xDest,
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$this->yDest,
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1
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);
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// draw a line that connects to master field line and foreign field line
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$eps->line(
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$this->xSrc + $this->srcDir * $this->wTick,
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$this->ySrc,
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$this->xDest + $this->destDir * $this->wTick,
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$this->yDest,
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1
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);
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$root2 = 2 * sqrt(2);
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$eps->line(
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$this->xSrc + $this->srcDir * $this->wTick * 0.75,
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$this->ySrc,
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$this->xSrc + $this->srcDir * (0.75 - 1 / $root2) * $this->wTick,
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$this->ySrc + $this->wTick / $root2,
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1
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);
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$eps->line(
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$this->xSrc + $this->srcDir * $this->wTick * 0.75,
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$this->ySrc,
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$this->xSrc + $this->srcDir * (0.75 - 1 / $root2) * $this->wTick,
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$this->ySrc - $this->wTick / $root2,
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1
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);
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$eps->line(
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$this->xDest + $this->destDir * $this->wTick / 2,
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$this->yDest,
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$this->xDest + $this->destDir * (0.5 + 1 / $root2) * $this->wTick,
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$this->yDest + $this->wTick / $root2,
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1
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);
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$eps->line(
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$this->xDest + $this->destDir * $this->wTick / 2,
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$this->yDest,
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$this->xDest + $this->destDir * (0.5 + 1 / $root2) * $this->wTick,
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$this->yDest - $this->wTick / $root2,
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1
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);
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}
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}
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?>
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