first commit

2026-04-30 14:38:11 +02:00
commit e22bbde336
1994 changed files with 613950 additions and 0 deletions
--- a/system/libraries/Tagcloud.php
+++ b/system/libraries/Tagcloud.php
@@ -0,0 +1,130 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * [Tag cloud][ref-tcl] creation library.
+ *
+ * [ref-tcl]: http://en.wikipedia.org/wiki/Tag_cloud
+ *
+ * $Id: Tagcloud.php 3824 2008-12-20 17:13:06Z samsoir $
+ *
+ * @package    Tagcloud
+ * @author     Kohana Team
+ * @copyright  (c) 2008 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class Tagcloud_Core {
+
+	/**
+	 * Creates a new Tagcloud instance and returns it.
+	 *
+	 * @chainable
+	 * @param   array    elements of the tagcloud
+	 * @param   integer  minimum font size
+	 * @param   integer  maximum font size
+	 * @return  Tagcloud
+	 */
+	public static function factory(array $elements, $min_size = NULL, $max_size = NULL, $shuffle = FALSE)
+	{
+		return new Tagcloud($elements, $min_size, $max_size, $shuffle);
+	}
+
+	public $min_size   = 80;
+	public $max_size   = 140;
+	public $attributes = array('class' => 'tag');
+	public $shuffle    = FALSE;
+
+	// Tag elements, biggest and smallest values
+	protected $elements;
+	protected $biggest;
+	protected $smallest;
+
+	/**
+	 * Construct a new tagcloud. The elements must be passed in as an array,
+	 * with each entry in the array having a "title" ,"link", and "count" key.
+	 * Font sizes will be applied via the "style" attribute as a percentage.
+	 *
+	 * @param   array    elements of the tagcloud
+	 * @param   integer  minimum font size
+	 * @param   integer  maximum font size
+	 * @return  void
+	 */
+	public function __construct(array $elements, $min_size = NULL, $max_size = NULL, $shuffle = FALSE)
+	{
+		$this->elements = $elements;
+		
+		if($shuffle !== FALSE)
+		{
+			$this->shuffle = TRUE;
+		}
+
+		$counts = array();
+		foreach ($elements as $data)
+		{
+			$counts[] = $data['count'];
+		}
+
+		// Find the biggest and smallest values of the elements
+		$this->biggest  = max($counts);
+		$this->smallest = min($counts);
+
+		if ($min_size !== NULL)
+		{
+			$this->min_size = $min_size;
+		}
+
+		if ($max_size !== NULL)
+		{
+			$this->max_size = $max_size;
+		}
+	}
+
+	/**
+	 * Magic __toString method. Returns all of the links as a single string.
+	 *
+	 * @return  string
+	 */
+	public function __toString()
+	{
+		return implode("\n", $this->render());
+	}
+
+	/**
+	 * Renders the elements of the tagcloud into an array of links.
+	 *
+	 * @return  array
+	 */
+	public function render()
+	{
+		if ($this->shuffle === TRUE)
+		{
+			shuffle($this->elements);
+		}
+
+		// Minimum values must be 1 to prevent divide by zero errors
+		$range = max($this->biggest  - $this->smallest, 1);
+		$scale = max($this->max_size - $this->min_size, 1);
+
+		// Import the attributes locally to prevent overwrites
+		$attr = $this->attributes;
+
+		$output = array();
+		foreach ($this->elements as $data)
+		{
+			if (strpos($data['title'], ' ') !== FALSE)
+			{
+				// Replace spaces with non-breaking spaces to prevent line wrapping
+				// in the middle of a link
+				$data['title'] = str_replace(' ', '&nbsp;', $data['title']);
+			}
+
+			// Determine the size based on the min/max scale and the smallest/biggest range
+			$size = ((($data['count'] - $this->smallest) * $scale) / $range) + $this->min_size;
+
+			$attr['style'] = 'font-size: '.round($size, 0).'%';
+
+			$output[] = html::anchor($data['link'], $data['title'], $attr)."\n";
+		}
+
+		return $output;
+	}
+
+} // End Tagcloud