+ public function check_config_table()
+ {
+ // if the config table doesn't exist yet, create it
+ if(!$this->cfg_db->db_check_table_exists("images")) {
+ $this->cfg_db->db_exec("
+ CREATE TABLE images (
+ img_idx int primary key,
+ img_md5 varchar(32)
+ )
+ ");
+ }
+
+ } // check_config_table
+
+ public function gen_thumbs($idx = 0, $fromcmd = 0)
+ {
+ if(!$idx) {
+ /* get all available photos */
+ $all = $this->getPhotoSelection();
+ }
+ else
+ $all = Array($idx);
+
+ foreach($all as $photo) {
+
+ $details = $this->get_photo_details($photo);
+
+ $full_path = $this->translate_path($details['directory_path']) ."/". $details['name'];
+ $file_md5 = md5_file($full_path);
+
+ if($fromcmd) print "Image ". $details['name'] ." Thumbnails:";
+
+ /* if the file hasn't changed there is no need to regen the thumb */
+ if($file_md5 == $this->getMD5($photo)) {
+ if($fromcmd) print " file has not changed - skipping\n";
+ continue;
+ }
+
+ /* set the new/changed MD5 sum for the current photo */
+ $this->setMD5($photo, $file_md5);
+
+ $resolutions = Array(
+ $this->cfg->thumb_width,
+ $this->cfg->bubble_width,
+ $this->cfg->photo_width
+ );
+
+ /* create thumbnails for the requested resolutions */
+ foreach($resolutions as $resolution) {
+ if($fromcmd) print " ". $resolution ."px";
+ $this->create_thumbnail($full_path, $resolution);
+ }
+
+ if($fromcmd) print "\n";
+
+ }
+
+ } // gen_thumbs()
+
+ private function getMD5($idx)
+ {
+ $result = $this->cfg_db->db_query("
+ SELECT img_md5
+ FROM images
+ WHERE img_idx='". $idx ."'
+ ");
+
+ if(!$result)
+ return 0;
+
+ $img = $this->cfg_db->db_fetch_object($result);
+ return $img['img_md5'];
+
+ } // getMD5()
+
+ private function setMD5($idx, $md5)
+ {
+ $result = $this->cfg_db->db_exec("
+ REPLACE INTO images (img_idx, img_md5)
+ VALUES ('". $idx ."', '". $md5 ."')
+ ");
+
+ } // setMD5()
+
+ public function setTagCondition($mode)
+ {
+ $_SESSION['tag_condition'] = $mode;
+
+ } // setTagCondition()
+
+ public function startSearch($searchfor)
+ {
+ $_SESSION['searchfor'] = $searchfor;
+
+ } // startSearch()
+
+ private function rotateImage($img, $degrees)
+ {
+ if(function_exists("imagerotate"))
+ $img = imagerotate($img, $degrees, 0);
+ else
+ {
+ function imagerotate($src_img, $angle)
+ {
+ $src_x = imagesx($src_img);
+ $src_y = imagesy($src_img);
+ if ($angle == 180) {
+ $dest_x = $src_x;
+ $dest_y = $src_y;
+ }
+ elseif ($src_x <= $src_y) {
+ $dest_x = $src_y;
+ $dest_y = $src_x;
+ }
+ elseif ($src_x >= $src_y) {
+ $dest_x = $src_y;
+ $dest_y = $src_x;
+ }
+
+ $rotate=imagecreatetruecolor($dest_x,$dest_y);
+ imagealphablending($rotate, false);
+
+ switch ($angle) {
+
+ case 90:
+ for ($y = 0; $y < ($src_y); $y++) {
+ for ($x = 0; $x < ($src_x); $x++) {
+ $color = imagecolorat($src_img, $x, $y);
+ imagesetpixel($rotate, $dest_x - $y - 1, $x, $color);
+ }
+ }
+ break;
+
+ case 270:
+ for ($y = 0; $y < ($src_y); $y++) {
+ for ($x = 0; $x < ($src_x); $x++) {
+ $color = imagecolorat($src_img, $x, $y);
+ imagesetpixel($rotate, $y, $dest_y - $x - 1, $color);
+ }
+ }
+ break;
+
+ case 180:
+ for ($y = 0; $y < ($src_y); $y++) {
+ for ($x = 0; $x < ($src_x); $x++) {
+ $color = imagecolorat($src_img, $x, $y);
+ imagesetpixel($rotate, $dest_x - $x - 1, $dest_y - $y - 1, $color);
+ }
+ }
+ break;
+
+ default: $rotate = $src_img;
+ };
+
+ return $rotate;
+
+ }
+
+ $img = imagerotate($img, $degrees);
+
+ }
+
+ return $img;
+
+ } // rotateImage()
+
+ private function get_photo_tags($idx)
+ {
+ $result = $this->db->db_query("
+ SELECT t.id, t.name
+ FROM tags t
+ INNER JOIN photo_tags pt
+ ON t.id=pt.tag_id
+ WHERE pt.photo_id='". $idx ."'
+ ");
+
+ $tags = Array();
+
+ while($row = $this->db->db_fetch_object($result))
+ $tags[$row['id']] = $row['name'];
+
+ return $tags;
+
+ } // get_photo_tags()
+