+ $src_img = @imagecreatefromjpeg($orig_image);
+
+ if(!$src_img) {
+ print "Can't load image from ". $orig_image ."\n";
+ return false;
+ }
+
+ /* grabs the height and width */
+ $new_w = imagesx($src_img);
+ $new_h = imagesy($src_img);
+
+ // If requested width is more then the actual image width,
+ // do not generate a thumbnail
+
+ if($width >= $new_w) {
+ imagedestroy($src_img);
+ return true;
+ }
+
+ /* calculates aspect ratio */
+ $aspect_ratio = $new_h / $new_w;
+
+ /* sets new size */
+ $new_w = $width;
+ $new_h = abs($new_w * $aspect_ratio);
+
+ /* creates new image of that size */
+ $dst_img = imagecreatetruecolor($new_w, $new_h);
+
+ imagefill($dst_img, 0, 0, ImageColorAllocate($dst_img, 255, 255, 255));
+
+ /* copies resized portion of original image into new image */
+ imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img));
+
+ /* needs the image to be flipped horizontal? */
+ if($flip) {
+ print "(FLIP)";
+ $image = $dst_img;
+ for($x = 0; $x < $new_w; $x++) {
+ imagecopy($dst_img, $image, $x, 0, $w - $x - 1, 0, 1, $h);
+ }
+ }
+
+ if($rotate) {
+ print "(ROTATE)";
+ $dst_img = $this->rotateImage($dst_img, $rotate);
+ }
+
+ /* write down new generated file */
+ $result = imagejpeg($dst_img, $thumb_image, 75);
+
+ /* free your mind */
+ imagedestroy($dst_img);
+ imagedestroy($src_img);
+
+ if($result === false) {
+ print "Can't write thumbnail ". $thumb_image ."\n";
+ return false;
+ }
+
+ return true;
+
+ } // create_thumbnail()
+
+ public function get_meta_informations($file)
+ {
+ return exif_read_data($file);
+
+ } // get_meta_informations()
+
+ public function check_config_table()
+ {
+ // if the config table doesn't exist yet, create it
+ if(!$this->cfg_db->db_check_table_exists("images")) {
+ $this->cfg_db->db_exec("
+ CREATE TABLE images (
+ img_idx int primary key,
+ img_md5 varchar(32)
+ )
+ ");
+ }
+
+ } // check_config_table
+
+ /**
+ * Generates a thumbnail from photo idx
+ *
+ * This function will generate JPEG thumbnails from provided F-Spot photo
+ * indizes.
+ *
+ * 1. Check if all thumbnail generations (width) are already in place and
+ * readable
+ * 2. Check if the md5sum of the original file has changed
+ * 3. Generate the thumbnails if needed
+ */
+ public function gen_thumb($idx = 0, $force = 0)
+ {
+ $error = 0;
+
+ $resolutions = Array(
+ $this->cfg->thumb_width,
+ $this->cfg->bubble_width,
+ $this->cfg->photo_width,
+ );
+
+ /* get details from F-Spot's database */
+ $details = $this->get_photo_details($idx);
+
+ /* calculate file MD5 sum */
+ $full_path = $this->translate_path($details['directory_path']) ."/". $details['name'];
+ $file_md5 = md5_file($full_path);
+
+ $this->_debug("Image [". $idx ."] ". $details['name'] ." Thumbnails:");
+
+ foreach($resolutions as $resolution) {
+
+ $thumb_path = $this->cfg->base_path ."/thumbs/". $resolution ."_". $file_md5;
+
+ /* if the thumbnail file doesn't exist, create it */
+ if(!file_exists($thumb_path)) {
+
+ $this->_debug(" ". $resolution ."px");
+ if(!$this->create_thumbnail($full_path, $thumb_path, $resolution))
+ $error = 1;
+ }