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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * FooGallery Thumbnail Resizing class  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                if ( !class_exists( 'FooGallery_Thumbnails' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	class FooGallery_Thumbnails { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		function __construct() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			//generate thumbs using WPThumb  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			add_filter( 'foogallery_attachment_resize_thumbnail', array( $this, 'resize' ), 10, 3 );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		function resize( $original_image_src, $args, $thumbnail_object ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		    global $foogallery_last_generated_thumb_url;  | 
            
                            
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                			$arg_defaults = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'width'                   => 0,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'height'                  => 0,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'crop'                    => true,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'jpeg_quality'            => foogallery_thumbnail_jpeg_quality(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				'thumb_resize_animations' => foogallery_get_setting( 'thumb_resize_animations' )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$args = wp_parse_args( $args, $arg_defaults );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ( 'on' === foogallery_get_setting( 'use_original_thumbs' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$width  = (int)$args['width'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$height = (int)$args['height'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$crop   = (bool)$args['crop'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				//check if we are trying to get back the default thumbnail that we already have  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				if ( $thumbnail_object->ID > 0 && $width == get_option( 'thumbnail_size_w' ) && $height == get_option( 'thumbnail_size_h' ) && $crop == get_option( 'thumbnail_crop' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$thumbnail_attributes = wp_get_attachment_image_src( $thumbnail_object->ID );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					return $thumbnail_attributes[0];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ( $thumbnail_object->ID > 0 ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$crop_from_position = get_post_meta( $thumbnail_object->ID, 'wpthumb_crop_pos', true );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				if ( !empty( $crop_from_position ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$args['crop_from_position'] = $crop_from_position;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			//save the generated thumb url to a global so that we can use it later if needed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $foogallery_last_generated_thumb_url = wpthumb( $original_image_src, $args );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $foogallery_last_generated_thumb_url;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                		function run_thumbnail_generation_tests() { | 
            
                            
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                            $test_image_url = foogallery_test_thumb_url();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            //first, clear any previous cached files  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $thumb = new WP_Thumb( $test_image_url );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            wpthumb_rmdir_recursive( $thumb->getCacheFileDirectory() );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            //next, generate a thumbnail  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$test_args = array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				'width'                   => 20,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				'height'                  => 20,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				'crop'                    => true,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				'jpeg_quality'            => foogallery_thumbnail_jpeg_quality()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$test_thumb = new WP_Thumb( $test_image_url, $test_args );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $generated_thumb = $test_thumb->returnImage();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $success = $test_image_url !== $generated_thumb;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$test_results = array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			    'success' => $success,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				'thumb' => $generated_thumb,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				'error' => $test_thumb->error(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            do_action( 'foogallery_thumbnail_generation_test', $test_results );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return $test_results;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Instead of relying on
globalstate, we recommend one of these alternatives:1. Pass all data via parameters
2. Create a class that maintains your state