| <?php |
| |
| function get_udims( $width, $height) { |
| if ( $height <= 96 && $width <= 128 ) |
| return array( $width, $height); |
| elseif ( $width / $height > 4 / 3 ) |
| return array( 128, (int) ($height / $width * 128 )); |
| else |
| return array( (int) ($width / $height * 96 ), 96 ); |
| } |
| |
| function wp_create_thumbnail( $file, $max_side, $effect = '' ) { |
| |
| // 1 = GIF, 2 = JPEG, 3 = PNG |
| |
| if ( file_exists( $file ) ) { |
| $type = getimagesize( $file ); |
| |
| // if the associated function doesn't exist - then it's not |
| // handle. duh. i hope. |
| |
| if (!function_exists( 'imagegif' ) && $type[2] == 1 ) { |
| $error = __( 'Filetype not supported. Thumbnail not created.' ); |
| } |
| elseif (!function_exists( 'imagejpeg' ) && $type[2] == 2 ) { |
| $error = __( 'Filetype not supported. Thumbnail not created.' ); |
| } |
| elseif (!function_exists( 'imagepng' ) && $type[2] == 3 ) { |
| $error = __( 'Filetype not supported. Thumbnail not created.' ); |
| } else { |
| |
| // create the initial copy from the original file |
| if ( $type[2] == 1 ) { |
| $image = imagecreatefromgif( $file ); |
| } |
| elseif ( $type[2] == 2 ) { |
| $image = imagecreatefromjpeg( $file ); |
| } |
| elseif ( $type[2] == 3 ) { |
| $image = imagecreatefrompng( $file ); |
| } |
| |
| if ( function_exists( 'imageantialias' )) |
| imageantialias( $image, TRUE ); |
| |
| $image_attr = getimagesize( $file ); |
| |
| // figure out the longest side |
| |
| if ( $image_attr[0] > $image_attr[1] ) { |
| $image_width = $image_attr[0]; |
| $image_height = $image_attr[1]; |
| $image_new_width = $max_side; |
| |
| $image_ratio = $image_width / $image_new_width; |
| $image_new_height = $image_height / $image_ratio; |
| //width is > height |
| } else { |
| $image_width = $image_attr[0]; |
| $image_height = $image_attr[1]; |
| $image_new_height = $max_side; |
| |
| $image_ratio = $image_height / $image_new_height; |
| $image_new_width = $image_width / $image_ratio; |
| //height > width |
| } |
| |
| $thumbnail = imagecreatetruecolor( $image_new_width, $image_new_height); |
| @ imagecopyresampled( $thumbnail, $image, 0, 0, 0, 0, $image_new_width, $image_new_height, $image_attr[0], $image_attr[1] ); |
| |
| // If no filters change the filename, we'll do a default transformation. |
| if ( basename( $file ) == $thumb = apply_filters( 'thumbnail_filename', basename( $file ) ) ) |
| $thumb = preg_replace( '!(\.[^.]+)?$!', '.thumbnail' . '$1', basename( $file ), 1 ); |
| |
| $thumbpath = str_replace( basename( $file ), $thumb, $file ); |
| |
| // move the thumbnail to its final destination |
| if ( $type[2] == 1 ) { |
| if (!imagegif( $thumbnail, $thumbpath ) ) { |
| $error = __( "Thumbnail path invalid" ); |
| } |
| } |
| elseif ( $type[2] == 2 ) { |
| if (!imagejpeg( $thumbnail, $thumbpath ) ) { |
| $error = __( "Thumbnail path invalid" ); |
| } |
| } |
| elseif ( $type[2] == 3 ) { |
| if (!imagepng( $thumbnail, $thumbpath ) ) { |
| $error = __( "Thumbnail path invalid" ); |
| } |
| } |
| |
| } |
| } else { |
| $error = __( 'File not found' ); |
| } |
| |
| if (!empty ( $error ) ) { |
| return $error; |
| } else { |
| return apply_filters( 'wp_create_thumbnail', $thumbpath ); |
| } |
| } |
| |
| function wp_crop_image( $src_file, $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h, $src_abs = false, $dst_file = false ) { |
| if ( ctype_digit( $src_file ) ) // Handle int as attachment ID |
| $src_file = get_attached_file( $src_file ); |
| |
| $src = wp_load_image( $src_file ); |
| |
| if ( !is_resource( $src )) |
| return $src; |
| |
| $dst = imagecreatetruecolor( $dst_w, $dst_h ); |
| |
| if ( $src_abs ) { |
| $src_w -= $src_x; |
| $src_h -= $src_y; |
| } |
| |
| if (function_exists('imageantialias')) |
| imageantialias( $dst, true ); |
| |
| imagecopyresampled( $dst, $src, 0, 0, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h ); |
| |
| if ( !$dst_file ) |
| $dst_file = str_replace( basename( $src_file ), 'cropped-'.basename( $src_file ), $src_file ); |
| |
| $dst_file = preg_replace( '/\\.[^\\.]+$/', '.jpg', $dst_file ); |
| |
| if ( imagejpeg( $dst, $dst_file ) ) |
| return $dst_file; |
| else |
| return false; |
| } |
| |
| function wp_generate_attachment_metadata( $attachment_id, $file ) { |
| $attachment = get_post( $attachment_id ); |
| |
| $metadata = array(); |
| if ( preg_match('!^image/!', get_post_mime_type( $attachment )) ) { |
| $imagesize = getimagesize($file); |
| $metadata['width'] = $imagesize['0']; |
| $metadata['height'] = $imagesize['1']; |
| list($uwidth, $uheight) = get_udims($metadata['width'], $metadata['height']); |
| $metadata['hwstring_small'] = "height='$uheight' width='$uwidth'"; |
| $metadata['file'] = $file; |
| |
| $max = apply_filters( 'wp_thumbnail_creation_size_limit', 3 * 1024 * 1024, $attachment_id, $file ); |
| |
| if ( $max < 0 || $metadata['width'] * $metadata['height'] < $max ) { |
| $max_side = apply_filters( 'wp_thumbnail_max_side_length', 128, $attachment_id, $file ); |
| $thumb = wp_create_thumbnail( $file, $max_side ); |
| |
| if ( @file_exists($thumb) ) |
| $metadata['thumb'] = basename($thumb); |
| } |
| } |
| return apply_filters( 'wp_generate_attachment_metadata', $metadata ); |
| } |
| |
| function wp_load_image( $file ) { |
| if ( ctype_digit( $file ) ) |
| $file = get_attached_file( $file ); |
| |
| if ( !file_exists( $file ) ) |
| return sprintf(__("File '%s' doesn't exist?"), $file); |
| |
| if ( ! function_exists('imagecreatefromstring') ) |
| return __('The GD image library is not installed.'); |
| |
| $contents = file_get_contents( $file ); |
| |
| $image = imagecreatefromstring( $contents ); |
| |
| if ( !is_resource( $image ) ) |
| return sprintf(__("File '%s' is not an image."), $file); |
| |
| return $image; |
| } |
| |
| function wp_shrink_dimensions( $width, $height, $wmax = 128, $hmax = 96 ) { |
| if ( $height <= $hmax && $width <= $wmax ) |
| return array( $width, $height); |
| elseif ( $width / $height > $wmax / $hmax ) |
| return array( $wmax, (int) ($height / $width * $wmax )); |
| else |
| return array( (int) ($width / $height * $hmax ), $hmax ); |
| } |
| |
| ?> |