+ public function prepare_single_photo($photo)
+ {
+ if(isset($photo)) {
+ $this->tmpl->assign('image_url', 'phpfspot_img.php?idx='. $this->avail_photos[$photo] ."&width=". $this->cfg->photo_width);
+ }
+
+ if($photo > 0) {
+ $this->tmpl->assign('previous_url', "javascript:showImage(". ($photo-1) .");");
+ }
+
+ if($photo < count($this->avail_photos)) {
+ $this->tmpl->assign('next_url', "javascript:showImage(". ($photo+1) .");");
+ }
+
+ } // prepare_single_photo()
+
+ public function getAvailableTags()
+ {
+ foreach($this->avail_tags as $tag)
+ {
+ if(isset($_SESSION['selected_tags']) && in_array($tag, $_SESSION['selected_tags']))
+ continue;
+
+ // return all available (= not selected) tags
+ print "<a href=\"javascript:Tags('add', ". $tag .");\">". $this->tags[$tag] ."</a> ";
+
+ }
+
+ } // getAvailableTags()
+
+ public function getSelectedTags()
+ {
+ foreach($this->avail_tags as $tag)
+ {
+ // return all selected tags
+ if(isset($_SESSION['selected_tags']) && in_array($tag, $_SESSION['selected_tags'])) {
+ print "<a href=\"javascript:Tags('del', ". $tag .");\">". $this->tags[$tag] ."</a> ";
+ }
+
+ }
+
+ print "<a href=\"javascript:Tags('reset', 0);\">Reset Tags</a>";
+
+ } // getSelectedTags()
+
+ public function addTag($tag)
+ {
+ if(!isset($_SESSION['selected_tags']))
+ $_SESSION['selected_tags'] = Array();
+
+ array_push($_SESSION['selected_tags'], $tag);
+
+ } // addTag()
+
+ public function delTag($tag)
+ {
+ if(isset($_SESSION['selected_tags'])) {
+ $key = array_search($tag, $_SESSION['selected_tags']);
+ unset($_SESSION['selected_tags'][$key]);
+ }
+
+ } // delTag()
+
+ public function resetTags()
+ {
+ unset($_SESSION['selected_tags']);
+
+ } // resetTags()
+
+ public function getAllTagPhotos()
+ {
+ $selected = "";
+ foreach($_SESSION['selected_tags'] as $tag)
+ $selected.= $tag .",";
+ $selected = substr($selected, 0, strlen($selected)-1);
+
+ $tagged_photos = Array();
+
+ $result = $this->db->db_query("
+ SELECT DISTINCT photo_id
+ FROM photo_tags
+ WHERE tag_id IN (". $selected .")
+ ");
+
+ while($row = $this->db->db_fetch_object($result)) {
+ array_push($tagged_photos, $row['photo_id']);
+ }
+
+
+ return $tagged_photos;
+
+ } // getAllTagPhotos()
+
+ public function showPhotoIndex()
+ {
+
+ foreach($this->getAllTagPhotos() as $photo)
+ {
+ print "<img src=\"phpfspot_img.php?idx=". $photo ."&width=". $this->cfg->thumb_width ."\" /><br />\n";
+ }
+
+ } // showPhotoIndex()
+