*
* @param mixed $file Filename of the original image, Or attachment id.
* @param int $max_side Maximum length of a single side for the thumbnail.
+ * @param mixed $deprecated Never used.
* @return string Thumbnail path on success, Error string on failure.
*/
function wp_create_thumbnail( $file, $max_side, $deprecated = '' ) {
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '1.2' );
$thumbpath = image_resize( $file, $max_side, $max_side );
return apply_filters( 'wp_create_thumbnail', $thumbpath );
}
* @param int $dst_h The destination height.
* @param int $src_abs Optional. If the source crop points are absolute.
* @param string $dst_file Optional. The destination file to write to.
- * @return string New filepath on success, String error message on failure.
+ * @return string|WP_Error|false New filepath on success, WP_Error or false on failure.
*/
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 ( is_numeric( $src_file ) ) // Handle int as attachment ID
$src = wp_load_image( $src_file );
- if ( !is_resource( $src ))
- return $src;
+ if ( !is_resource( $src ) )
+ return new WP_Error( 'error_loading_image', $src, $src_file );
- $dst = imagecreatetruecolor( $dst_w, $dst_h );
+ $dst = wp_imagecreatetruecolor( $dst_w, $dst_h );
if ( $src_abs ) {
$src_w -= $src_x;
$dst_file = preg_replace( '/\\.[^\\.]+$/', '.jpg', $dst_file );
- if ( imagejpeg( $dst, $dst_file ) )
+ if ( imagejpeg( $dst, $dst_file, apply_filters( 'jpeg_quality', 90, 'wp_crop_image' ) ) )
return $dst_file;
else
return false;
}
/**
- * Generate post image attachment meta data.
+ * Generate post thumbnail attachment meta data.
*
* @since 2.1.0
*
$metadata = array();
if ( preg_match('!^image/!', get_post_mime_type( $attachment )) && file_is_displayable_image($file) ) {
- $full_path_file = $file;
- $imagesize = getimagesize( $full_path_file );
+ $imagesize = getimagesize( $file );
$metadata['width'] = $imagesize[0];
$metadata['height'] = $imagesize[1];
- list($uwidth, $uheight) = wp_shrink_dimensions($metadata['width'], $metadata['height']);
+ list($uwidth, $uheight) = wp_constrain_dimensions($metadata['width'], $metadata['height'], 128, 96);
$metadata['hwstring_small'] = "height='$uheight' width='$uwidth'";
// Make the file path relative to the upload dir
- if ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) { // Get upload directory
- if ( 0 === strpos($file, $uploads['basedir']) ) {// Check that the upload base exists in the file path
- $file = str_replace($uploads['basedir'], '', $file); // Remove upload dir from the file path
- $file = ltrim($file, '/');
- }
- }
- $metadata['file'] = $file;
+ $metadata['file'] = _wp_relative_upload_path($file);
// make thumbnails and other intermediate sizes
- $sizes = array('thumbnail', 'medium', 'large');
- $sizes = apply_filters('intermediate_image_sizes', $sizes);
+ global $_wp_additional_image_sizes;
+
+ foreach ( get_intermediate_image_sizes() as $s ) {
+ $sizes[$s] = array( 'width' => '', 'height' => '', 'crop' => FALSE );
+ if ( isset( $_wp_additional_image_sizes[$s]['width'] ) )
+ $sizes[$s]['width'] = intval( $_wp_additional_image_sizes[$s]['width'] ); // For theme-added sizes
+ else
+ $sizes[$s]['width'] = get_option( "{$s}_size_w" ); // For default sizes set in options
+ if ( isset( $_wp_additional_image_sizes[$s]['height'] ) )
+ $sizes[$s]['height'] = intval( $_wp_additional_image_sizes[$s]['height'] ); // For theme-added sizes
+ else
+ $sizes[$s]['height'] = get_option( "{$s}_size_h" ); // For default sizes set in options
+ if ( isset( $_wp_additional_image_sizes[$s]['crop'] ) )
+ $sizes[$s]['crop'] = intval( $_wp_additional_image_sizes[$s]['crop'] ); // For theme-added sizes
+ else
+ $sizes[$s]['crop'] = get_option( "{$s}_crop" ); // For default sizes set in options
+ }
- foreach ($sizes as $size) {
- $resized = image_make_intermediate_size( $full_path_file, get_option("{$size}_size_w"), get_option("{$size}_size_h"), get_option("{$size}_crop") );
+ $sizes = apply_filters( 'intermediate_image_sizes_advanced', $sizes );
+
+ foreach ($sizes as $size => $size_data ) {
+ $resized = image_make_intermediate_size( $file, $size_data['width'], $size_data['height'], $size_data['crop'] );
if ( $resized )
$metadata['sizes'][$size] = $resized;
}
// fetch additional metadata from exif/iptc
- $image_meta = wp_read_image_metadata( $full_path_file );
- if ($image_meta)
+ $image_meta = wp_read_image_metadata( $file );
+ if ( $image_meta )
$metadata['image_meta'] = $image_meta;
}
- return apply_filters( 'wp_generate_attachment_metadata', $metadata );
-}
-
-/**
- * Load an image from a string, if PHP supports it.
- *
- * @since 2.1.0
- *
- * @param string $file Filename of the image to load.
- * @return resource The resulting image resource on success, Error string on failure.
- */
-function wp_load_image( $file ) {
- if ( is_numeric( $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.');
-
- // Set artificially high because GD uses uncompressed images in memory
- @ini_set('memory_limit', '256M');
- $image = imagecreatefromstring( file_get_contents( $file ) );
-
- if ( !is_resource( $image ) )
- return sprintf(__("File '%s' is not an image."), $file);
-
- return $image;
+ return apply_filters( 'wp_generate_attachment_metadata', $metadata, $attachment_id );
}
/**
* Calculated the new dimentions for a downsampled image.
*
* @since 2.0.0
- * @see wp_shrink_dimensions()
- *
- * @param int $width Current width of the image
- * @param int $height Current height of the image
- * @return mixed Array(height,width) of shrunk dimensions.
- */
-function get_udims( $width, $height) {
- return wp_shrink_dimensions( $width, $height );
-}
-
-/**
- * Calculates the new dimentions for a downsampled image.
- *
- * @since 2.0.0
* @see wp_constrain_dimensions()
*
* @param int $width Current width of the image
* @param int $height Current height of the image
- * @param int $wmax Maximum wanted width
- * @param int $hmax Maximum wanted height
* @return mixed Array(height,width) of shrunk dimensions.
*/
-function wp_shrink_dimensions( $width, $height, $wmax = 128, $hmax = 96 ) {
- return wp_constrain_dimensions( $width, $height, $wmax, $hmax );
+function get_udims( $width, $height) {
+ return wp_constrain_dimensions( $width, $height, 128, 96 );
}
/**
* @return bool|array False on failure. Image metadata array on success.
*/
function wp_read_image_metadata( $file ) {
- if ( !file_exists( $file ) )
+ if ( ! file_exists( $file ) )
return false;
- list(,,$sourceImageType) = getimagesize( $file );
+ list( , , $sourceImageType ) = getimagesize( $file );
// exif contains a bunch of data we'll probably never need formatted in ways
// that are difficult to use. We'll normalize it and just extract the fields
// read iptc first, since it might contain data not available in exif such
// as caption, description etc
- if ( is_callable('iptcparse') ) {
- getimagesize($file, $info);
- if ( !empty($info['APP13']) ) {
- $iptc = iptcparse($info['APP13']);
- if ( !empty($iptc['2#110'][0]) ) // credit
+ if ( is_callable( 'iptcparse' ) ) {
+ getimagesize( $file, $info );
+
+ if ( ! empty( $info['APP13'] ) ) {
+ $iptc = iptcparse( $info['APP13'] );
+
+ // headline, "A brief synopsis of the caption."
+ if ( ! empty( $iptc['2#105'][0] ) )
+ $meta['title'] = utf8_encode( trim( $iptc['2#105'][0] ) );
+ // title, "Many use the Title field to store the filename of the image, though the field may be used in many ways."
+ elseif ( ! empty( $iptc['2#005'][0] ) )
+ $meta['title'] = utf8_encode( trim( $iptc['2#005'][0] ) );
+
+ if ( ! empty( $iptc['2#120'][0] ) ) { // description / legacy caption
+ $caption = utf8_encode( trim( $iptc['2#120'][0] ) );
+ if ( empty( $meta['title'] ) ) {
+ // Assume the title is stored in 2:120 if it's short.
+ if ( strlen( $caption ) < 80 )
+ $meta['title'] = $caption;
+ else
+ $meta['caption'] = $caption;
+ } elseif ( $caption != $meta['title'] ) {
+ $meta['caption'] = $caption;
+ }
+ }
+
+ if ( ! empty( $iptc['2#110'][0] ) ) // credit
$meta['credit'] = utf8_encode(trim($iptc['2#110'][0]));
- elseif ( !empty($iptc['2#080'][0]) ) // byline
+ elseif ( ! empty( $iptc['2#080'][0] ) ) // creator / legacy byline
$meta['credit'] = utf8_encode(trim($iptc['2#080'][0]));
- if ( !empty($iptc['2#055'][0]) and !empty($iptc['2#060'][0]) ) // created date and time
- $meta['created_timestamp'] = strtotime($iptc['2#055'][0] . ' ' . $iptc['2#060'][0]);
- if ( !empty($iptc['2#120'][0]) ) // caption
- $meta['caption'] = utf8_encode(trim($iptc['2#120'][0]));
- if ( !empty($iptc['2#116'][0]) ) // copyright
- $meta['copyright'] = utf8_encode(trim($iptc['2#116'][0]));
- if ( !empty($iptc['2#005'][0]) ) // title
- $meta['title'] = utf8_encode(trim($iptc['2#005'][0]));
+
+ if ( ! empty( $iptc['2#055'][0] ) and ! empty( $iptc['2#060'][0] ) ) // created date and time
+ $meta['created_timestamp'] = strtotime( $iptc['2#055'][0] . ' ' . $iptc['2#060'][0] );
+
+ if ( ! empty( $iptc['2#116'][0] ) ) // copyright
+ $meta['copyright'] = utf8_encode( trim( $iptc['2#116'][0] ) );
}
}
// fetch additional info from exif if available
- if ( is_callable('exif_read_data') && in_array($sourceImageType, apply_filters('wp_read_image_metadata_types', array(IMAGETYPE_JPEG, IMAGETYPE_TIFF_II, IMAGETYPE_TIFF_MM)) ) ) {
+ if ( is_callable( 'exif_read_data' ) && in_array( $sourceImageType, apply_filters( 'wp_read_image_metadata_types', array( IMAGETYPE_JPEG, IMAGETYPE_TIFF_II, IMAGETYPE_TIFF_MM ) ) ) ) {
$exif = @exif_read_data( $file );
- if (!empty($exif['FNumber']))
+
+ if ( !empty( $exif['Title'] ) )
+ $meta['title'] = utf8_encode( trim( $exif['Title'] ) );
+
+ if ( ! empty( $exif['ImageDescription'] ) ) {
+ if ( empty( $meta['title'] ) && strlen( $exif['ImageDescription'] ) < 80 ) {
+ // Assume the title is stored in ImageDescription
+ $meta['title'] = utf8_encode( trim( $exif['ImageDescription'] ) );
+ if ( ! empty( $exif['COMPUTED']['UserComment'] ) && trim( $exif['COMPUTED']['UserComment'] ) != $meta['title'] )
+ $meta['caption'] = utf8_encode( trim( $exif['COMPUTED']['UserComment'] ) );
+ } elseif ( trim( $exif['ImageDescription'] ) != $meta['title'] ) {
+ $meta['caption'] = utf8_encode( trim( $exif['ImageDescription'] ) );
+ }
+ } elseif ( ! empty( $exif['Comments'] ) && trim( $exif['Comments'] ) != $meta['title'] ) {
+ $meta['caption'] = utf8_encode( trim( $exif['Comments'] ) );
+ }
+
+ if ( ! empty( $exif['Artist'] ) )
+ $meta['credit'] = utf8_encode( trim( $exif['Artist'] ) );
+ elseif ( ! empty($exif['Author'] ) )
+ $meta['credit'] = utf8_encode( trim( $exif['Author'] ) );
+
+ if ( ! empty( $exif['Copyright'] ) )
+ $meta['copyright'] = utf8_encode( trim( $exif['Copyright'] ) );
+ if ( ! empty($exif['FNumber'] ) )
$meta['aperture'] = round( wp_exif_frac2dec( $exif['FNumber'] ), 2 );
- if (!empty($exif['Model']))
- $meta['camera'] = trim( $exif['Model'] );
- if (!empty($exif['DateTimeDigitized']))
- $meta['created_timestamp'] = wp_exif_date2ts($exif['DateTimeDigitized']);
- if (!empty($exif['FocalLength']))
+ if ( ! empty($exif['Model'] ) )
+ $meta['camera'] = utf8_encode( trim( $exif['Model'] ) );
+ if ( ! empty($exif['DateTimeDigitized'] ) )
+ $meta['created_timestamp'] = wp_exif_date2ts($exif['DateTimeDigitized'] );
+ if ( ! empty($exif['FocalLength'] ) )
$meta['focal_length'] = wp_exif_frac2dec( $exif['FocalLength'] );
- if (!empty($exif['ISOSpeedRatings']))
- $meta['iso'] = $exif['ISOSpeedRatings'];
- if (!empty($exif['ExposureTime']))
+ if ( ! empty($exif['ISOSpeedRatings'] ) )
+ $meta['iso'] = utf8_encode( trim( $exif['ISOSpeedRatings'] ) );
+ if ( ! empty($exif['ExposureTime'] ) )
$meta['shutter_speed'] = wp_exif_frac2dec( $exif['ExposureTime'] );
}
return apply_filters('file_is_displayable_image', $result, $path);
}
-
-?>