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authorAndreas Unterkircher <unki@netshadow.at>2007-06-15 18:10:30 +0000
committerAndreas Unterkircher <unki@netshadow.at>2007-06-15 18:10:30 +0000
commit83cde026568fe57a2ccaac2977ef21ae5de7bf38 (patch)
tree54628b708e41f84d2fd95c1be6c49d894fb9c3fb /phpfspot.class.php
parent0970b4750aa4883fc59a3c7536585f8a26bcd7d4 (diff)
issue2, first tag cloud implementation
git-svn-id: file:///var/lib/svn/phpfspot/trunk@93 fa6a889d-dae6-447d-9e79-4ba9a3039384
Diffstat (limited to 'phpfspot.class.php')
-rw-r--r--phpfspot.class.php49
1 files changed, 44 insertions, 5 deletions
diff --git a/phpfspot.class.php b/phpfspot.class.php
index 0095ca8..af51752 100644
--- a/phpfspot.class.php
+++ b/phpfspot.class.php
@@ -144,13 +144,52 @@ class PHPFSPOT {
public function getAvailableTags()
{
- foreach($this->avail_tags as $tag)
- {
- if(isset($_SESSION['selected_tags']) && in_array($tag, $_SESSION['selected_tags']))
+ $result = $this->db->db_query("
+ SELECT tag_id as id, count(tag_id) as quantity
+ FROM photo_tags
+ GROUP BY tag_id
+ ORDER BY tag_id ASC
+ ");
+
+ $tags = Array();
+
+ while($row = $this->db->db_fetch_object($result)) {
+ $tags[$row['id']] = $row['quantity'];
+ }
+
+ // change these font sizes if you will
+ $max_size = 125; // max font size in %
+ $min_size = 75; // min font size in %
+
+ // get the largest and smallest array values
+ $max_qty = max(array_values($tags));
+ $min_qty = min(array_values($tags));
+
+ // find the range of values
+ $spread = $max_qty - $min_qty;
+ if (0 == $spread) { // we don't want to divide by zero
+ $spread = 1;
+ }
+
+ // determine the font-size increment
+ // this is the increase per tag quantity (times used)
+ $step = ($max_size - $min_size)/($spread);
+
+ // loop through our tag array
+ foreach ($tags as $key => $value) {
+
+ if(isset($_SESSION['selected_tags']) && in_array($key, $_SESSION['selected_tags']))
continue;
- // return all available (= not selected) tags
- print "<a href=\"javascript:Tags('add', ". $tag .");\" class=\"tag\">". $this->tags[$tag] ."</a>&nbsp;";
+ // calculate CSS font-size
+ // find the $value in excess of $min_qty
+ // multiply by the font-size increment ($size)
+ // and add the $min_size set above
+ $size = $min_size + (($value - $min_qty) * $step);
+ // uncomment if you want sizes in whole %:
+ // $size = ceil($size);
+
+ print "<a href=\"javascript:Tags('add', ". $key .");\" class=\"tag\" style=\"font-size: ". $size ."%;\">". $this->tags[$key] ."</a>&nbsp;";
}