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<?php |
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/* |
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* bfi_thumb - WP Image Resizer v1.3 |
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* |
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* (c) 2013 Benjamin F. Intal / Gambit |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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|
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/** Uses WP's Image Editor Class to resize and filter images |
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* |
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* @param $url string the local image URL to manipulate |
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* @param $params array the options to perform on the image. Keys and values supported: |
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* 'width' int pixels |
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* 'height' int pixels |
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* 'opacity' int 0-100 |
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* 'color' string hex-color #000000-#ffffff |
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* 'grayscale' bool |
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* 'negate' bool |
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* 'crop' bool |
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* 'crop_only' bool |
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* 'crop_x' bool string |
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* 'crop_y' bool string |
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* 'crop_width' bool string |
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* 'crop_height' bool string |
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* 'quality' int 1-100 |
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* @param $single boolean, if false then an array of data will be returned |
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* |
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* @return string|array containing the url of the resized modified image |
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*/ |
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|
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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly. |
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|
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if ( ! defined( 'BFITHUMB_UPLOAD_DIR' ) ) { |
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define( 'BFITHUMB_UPLOAD_DIR', 'elementor/thumbs' ); |
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} |
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|
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if ( ! function_exists( 'bfi_thumb' ) ) { |
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|
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function bfi_thumb( $url, $params = array(), $single = true ) { |
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$class = BFI_Class_Factory::getNewestVersion( 'BFI_Thumb' ); |
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|
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return call_user_func( array( $class, 'thumb' ), $url, $params, $single ); |
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} |
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} |
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|
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|
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/** |
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* Class factory, this is to make sure that when multiple bfi_thumb scripts |
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* are used (e.g. a plugin and a theme both use it), we always use the |
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* latest version. |
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*/ |
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if ( ! class_exists( 'BFI_Class_Factory' ) ) { |
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|
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class BFI_Class_Factory { |
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|
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public static $versions = array(); |
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public static $latestClass = array(); |
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|
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public static function addClassVersion( $baseClassName, $className, $version ) { |
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if ( empty( self::$versions[ $baseClassName ] ) ) { |
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self::$versions[ $baseClassName ] = array(); |
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} |
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self::$versions[ $baseClassName ][] = array( |
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'class' => $className, |
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'version' => $version, |
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); |
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} |
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|
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public static function getNewestVersion( $baseClassName ) { |
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if ( empty( self::$latestClass[ $baseClassName ] ) ) { |
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usort( self::$versions[ $baseClassName ], array( __CLASS__, "versionCompare" ) ); |
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self::$latestClass[ $baseClassName ] = self::$versions[ $baseClassName ][0]['class']; |
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unset( self::$versions[ $baseClassName ] ); |
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} |
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|
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return self::$latestClass[ $baseClassName ]; |
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} |
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|
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public static function versionCompare( $a, $b ) { |
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return version_compare( $a['version'], $b['version'] ) == 1 ? -1 : 1; |
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} |
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} |
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} |
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|
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|
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/* |
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* Change the default image editors |
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*/ |
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add_filter( 'wp_image_editors', 'bfi_wp_image_editor' ); |
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|
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// Instead of using the default image editors, use our extended ones |
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if ( ! function_exists( 'bfi_wp_image_editor' ) ) { |
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|
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function bfi_wp_image_editor( $editorArray ) { |
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// Make sure that we use the latest versions |
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return array( |
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BFI_Class_Factory::getNewestVersion( 'BFI_Image_Editor_GD' ), |
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BFI_Class_Factory::getNewestVersion( 'BFI_Image_Editor_Imagick' ), |
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); |
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} |
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} |
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|
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|
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/* |
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* Include the WP Image classes |
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*/ |
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|
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require_once ABSPATH . WPINC . '/class-wp-image-editor.php'; |
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require_once ABSPATH . WPINC . '/class-wp-image-editor-imagick.php'; |
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require_once ABSPATH . WPINC . '/class-wp-image-editor-gd.php'; |
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|
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|
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/* |
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* Enhanced Imagemagick Image Editor |
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*/ |
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|
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|
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if ( ! class_exists( 'BFI_Image_Editor_Imagick_1_3' ) ) { |
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|
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BFI_Class_Factory::addClassVersion( 'BFI_Image_Editor_Imagick', 'BFI_Image_Editor_Imagick_1_3', '1.3' ); |
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|
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class BFI_Image_Editor_Imagick_1_3 extends WP_Image_Editor_Imagick { |
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|
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/** Changes the opacity of the image |
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* |
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* @supports 3.5.1 |
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* @access public |
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* |
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* @param float $opacity (0.0-1.0) |
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* |
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* @return boolean|WP_Error |
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*/ |
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public function opacity( $opacity ) { |
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$opacity /= 100; |
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|
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try { |
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// From: http://stackoverflow.com/questions/3538851/php-imagick-setimageopacity-destroys-transparency-and-does-nothing |
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// preserves transparency |
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//$this->image->setImageOpacity($opacity); |
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return $this->image->evaluateImage( Imagick::EVALUATE_MULTIPLY, $opacity, Imagick::CHANNEL_ALPHA ); |
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} catch ( Exception $e ) { |
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return new WP_Error( 'image_opacity_error', $e->getMessage() ); |
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} |
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} |
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|
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/** Tints the image a different color |
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* |
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* @supports 3.5.1 |
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* @access public |
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* |
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* @param string hex color e.g. #ff00ff |
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* |
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* @return boolean|WP_Error |
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*/ |
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public function colorize( $hexColor ) { |
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try { |
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return $this->image->colorizeImage( $hexColor, 1.0 ); |
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} catch ( Exception $e ) { |
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return new WP_Error( 'image_colorize_error', $e->getMessage() ); |
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} |
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} |
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|
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/** Makes the image grayscale |
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* |
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* @supports 3.5.1 |
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* @access public |
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* |
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* @return boolean|WP_Error |
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*/ |
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public function grayscale() { |
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try { |
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return $this->image->modulateImage( 100, 0, 100 ); |
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} catch ( Exception $e ) { |
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return new WP_Error( 'image_grayscale_error', $e->getMessage() ); |
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} |
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} |
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|
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/** Negates the image |
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* |
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* @supports 3.5.1 |
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* @access public |
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* |
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* @return boolean|WP_Error |
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*/ |
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public function negate() { |
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try { |
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return $this->image->negateImage( false ); |
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} catch ( Exception $e ) { |
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return new WP_Error( 'image_negate_error', $e->getMessage() ); |
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} |
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} |
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} |
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} |
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|
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|
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/* |
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* Enhanced GD Image Editor |
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*/ |
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|
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|
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if ( ! class_exists( 'BFI_Image_Editor_GD_1_3' ) ) { |
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|
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BFI_Class_Factory::addClassVersion( 'BFI_Image_Editor_GD', 'BFI_Image_Editor_GD_1_3', '1.3' ); |
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|
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class BFI_Image_Editor_GD_1_3 extends WP_Image_Editor_GD { |
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|
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/** Rotates current image counter-clockwise by $angle. |
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* Ported from image-edit.php |
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* Added presevation of alpha channels |
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* |
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* @since 3.5.0 |
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* @access public |
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* |
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* @param float $angle |
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* |
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* @return boolean|WP_Error |
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*/ |
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public function rotate( $angle ) { |
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if ( function_exists( 'imagerotate' ) ) { |
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$rotated = imagerotate( $this->image, $angle, 0 ); |
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|
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// Add alpha blending |
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imagealphablending( $rotated, true ); |
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imagesavealpha( $rotated, true ); |
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|
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if ( is_resource( $rotated ) ) { |
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imagedestroy( $this->image ); |
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$this->image = $rotated; |
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$this->update_size(); |
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|
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return true; |
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} |
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} |
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|
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return new WP_Error( 'image_rotate_error', 'Image rotate failed.', $this->file ); |
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} |
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|
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/** Changes the opacity of the image |
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* |
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* @supports 3.5.1 |
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* @access public |
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* |
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* @param float $opacity (0.0-1.0) |
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* |
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* @return boolean|WP_Error |
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*/ |
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public function opacity( $opacity ) { |
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$opacity /= 100; |
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|
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$filtered = $this->_opacity( $this->image, $opacity ); |
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|
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if ( is_resource( $filtered ) ) { |
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// imagedestroy($this->image); |
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$this->image = $filtered; |
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|
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return true; |
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} |
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|
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return new WP_Error( 'image_opacity_error', 'Image opacity change failed.', $this->file ); |
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} |
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|
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|
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// from: http://php.net/manual/en/function.imagefilter.php |
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// params: image resource id, opacity (eg. 0.0-1.0) |
| 277 |
protected function _opacity( $image, $opacity ) { |
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if ( ! function_exists( 'imagealphablending' ) || ! function_exists( 'imagecolorat' ) || ! function_exists( 'imagecolorallocatealpha' ) || ! function_exists( 'imagesetpixel' ) ) { |
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return false; |
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} |
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|
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// get image width and height |
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$w = imagesx( $image ); |
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$h = imagesy( $image ); |
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|
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// turn alpha blending off |
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imagealphablending( $image, false ); |
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|
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// find the most opaque pixel in the image (the one with the smallest alpha value) |
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$minalpha = 127; |
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for ( $x = 0; $x < $w; $x++ ) { |
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for ( $y = 0; $y < $h; $y++ ) { |
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$alpha = ( imagecolorat( $image, $x, $y ) >> 24 ) & 0xFF; |
| 294 |
if ( $alpha < $minalpha ) { |
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$minalpha = $alpha; |
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} |
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} |
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} |
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|
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// loop through image pixels and modify alpha for each |
| 301 |
for ( $x = 0; $x < $w; $x++ ) { |
| 302 |
for ( $y = 0; $y < $h; $y++ ) { |
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|
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// get current alpha value (represents the TANSPARENCY!) |
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$colorxy = imagecolorat( $image, $x, $y ); |
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$alpha = ( $colorxy >> 24 ) & 0xFF; |
| 307 |
|
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// calculate new alpha |
| 309 |
if ( $minalpha !== 127 ) { |
| 310 |
$alpha = 127 + 127 * $opacity * ( $alpha - 127 ) / ( 127 - $minalpha ); |
| 311 |
} else { |
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$alpha += 127 * $opacity; |
| 313 |
} |
| 314 |
|
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// get the color index with new alpha |
| 316 |
$alphacolorxy = imagecolorallocatealpha( $image, ( $colorxy >> 16 ) & 0xFF, ( $colorxy >> 8 ) & 0xFF, $colorxy & 0xFF, $alpha ); |
| 317 |
|
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// set pixel with the new color + opacity |
| 319 |
if ( ! imagesetpixel( $image, $x, $y, $alphacolorxy ) ) { |
| 320 |
return false; |
| 321 |
} |
| 322 |
} |
| 323 |
} |
| 324 |
|
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imagesavealpha( $image, true ); |
| 326 |
|
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return $image; |
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} |
| 329 |
|
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/** Tints the image a different color |
| 331 |
* |
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* @supports 3.5.1 |
| 333 |
* @access public |
| 334 |
* |
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* @param string hex color e.g. #ff00ff |
| 336 |
* |
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* @return boolean|WP_Error |
| 338 |
*/ |
| 339 |
public function colorize( $hexColor ) { |
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if ( function_exists( 'imagefilter' ) && function_exists( 'imagesavealpha' ) && function_exists( 'imagealphablending' ) ) { |
| 341 |
|
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$hexColor = preg_replace( '#^\##', '', $hexColor ); |
| 343 |
$r = hexdec( substr( $hexColor, 0, 2 ) ); |
| 344 |
$g = hexdec( substr( $hexColor, 2, 2 ) ); |
| 345 |
$b = hexdec( substr( $hexColor, 2, 2 ) ); |
| 346 |
|
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imagealphablending( $this->image, false ); |
| 348 |
if ( imagefilter( $this->image, IMG_FILTER_COLORIZE, $r, $g, $b, 0 ) ) { |
| 349 |
imagesavealpha( $this->image, true ); |
| 350 |
|
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return true; |
| 352 |
} |
| 353 |
} |
| 354 |
|
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return new WP_Error( 'image_colorize_error', 'Image color change failed.', $this->file ); |
| 356 |
} |
| 357 |
|
| 358 |
/** Makes the image grayscale |
| 359 |
* |
| 360 |
* @supports 3.5.1 |
| 361 |
* @access public |
| 362 |
* |
| 363 |
* @return boolean|WP_Error |
| 364 |
*/ |
| 365 |
public function grayscale() { |
| 366 |
if ( function_exists( 'imagefilter' ) ) { |
| 367 |
if ( imagefilter( $this->image, IMG_FILTER_GRAYSCALE ) ) { |
| 368 |
return true; |
| 369 |
} |
| 370 |
} |
| 371 |
|
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return new WP_Error( 'image_grayscale_error', 'Image grayscale failed.', $this->file ); |
| 373 |
} |
| 374 |
|
| 375 |
/** Negates the image |
| 376 |
* |
| 377 |
* @supports 3.5.1 |
| 378 |
* @access public |
| 379 |
* |
| 380 |
* @return boolean|WP_Error |
| 381 |
*/ |
| 382 |
public function negate() { |
| 383 |
if ( function_exists( 'imagefilter' ) ) { |
| 384 |
if ( imagefilter( $this->image, IMG_FILTER_NEGATE ) ) { |
| 385 |
return true; |
| 386 |
} |
| 387 |
} |
| 388 |
|
| 389 |
return new WP_Error( 'image_negate_error', 'Image negate failed.', $this->file ); |
| 390 |
} |
| 391 |
} |
| 392 |
} |
| 393 |
|
| 394 |
|
| 395 |
/* |
| 396 |
* Main Class |
| 397 |
*/ |
| 398 |
if ( ! class_exists( 'BFI_Thumb_1_3' ) ) { |
| 399 |
|
| 400 |
BFI_Class_Factory::addClassVersion( 'BFI_Thumb', 'BFI_Thumb_1_3', '1.3' ); |
| 401 |
|
| 402 |
class BFI_Thumb_1_3 { |
| 403 |
|
| 404 |
/** Uses WP's Image Editor Class to resize and filter images |
| 405 |
* Inspired by: https://github.com/sy4mil/Aqua-Resizer/blob/master/aq_resizer.php |
| 406 |
* |
| 407 |
* @param $url string the local image URL to manipulate |
| 408 |
* @param $params array the options to perform on the image. Keys and values supported: |
| 409 |
* 'width' int pixels |
| 410 |
* 'height' int pixels |
| 411 |
* 'opacity' int 0-100 |
| 412 |
* 'color' string hex-color #000000-#ffffff |
| 413 |
* 'grayscale' bool |
| 414 |
* 'crop' bool |
| 415 |
* 'negate' bool |
| 416 |
* 'crop_only' bool |
| 417 |
* 'crop_x' bool string |
| 418 |
* 'crop_y' bool string |
| 419 |
* 'crop_width' bool string |
| 420 |
* 'crop_height' bool string |
| 421 |
* 'quality' int 1-100 |
| 422 |
* @param $single boolean, if false then an array of data will be returned |
| 423 |
* |
| 424 |
* @return string|array |
| 425 |
*/ |
| 426 |
public static function thumb( $url, $params = array(), $single = true ) { |
| 427 |
extract( $params ); |
| 428 |
|
| 429 |
//validate inputs |
| 430 |
if ( ! $url ) { |
| 431 |
return false; |
| 432 |
} |
| 433 |
|
| 434 |
$crop_only = isset( $crop_only ) ? $crop_only : false; |
| 435 |
|
| 436 |
//define upload path & dir |
| 437 |
$upload_info = wp_upload_dir(); |
| 438 |
$upload_dir = $upload_info['basedir']; |
| 439 |
$upload_url = $upload_info['baseurl']; |
| 440 |
$theme_url = get_template_directory_uri(); |
| 441 |
$theme_dir = get_template_directory(); |
| 442 |
|
| 443 |
// find the path of the image. Perform 2 checks: |
| 444 |
// #1 check if the image is in the uploads folder |
| 445 |
if ( strpos( $url, $upload_url ) !== false ) { |
| 446 |
$rel_path = str_replace( $upload_url, '', $url ); |
| 447 |
$img_path = $upload_dir . $rel_path; |
| 448 |
// #2 check if the image is in the current theme folder |
| 449 |
} else if ( strpos( $url, $theme_url ) !== false ) { |
| 450 |
$rel_path = str_replace( $theme_url, '', $url ); |
| 451 |
$img_path = $theme_dir . $rel_path; |
| 452 |
} |
| 453 |
|
| 454 |
// Fail if we can't find the image in our WP local directory |
| 455 |
if ( empty( $img_path ) ) { |
| 456 |
return $url; |
| 457 |
} |
| 458 |
|
| 459 |
// check if img path exists, and is an image indeed |
| 460 |
if ( ! @file_exists( $img_path ) || ! getimagesize( $img_path ) ) { |
| 461 |
return $url; |
| 462 |
} |
| 463 |
|
| 464 |
// This is the filename |
| 465 |
$basename = basename( $img_path ); |
| 466 |
|
| 467 |
//get image info |
| 468 |
$info = pathinfo( $img_path ); |
| 469 |
$ext = $info['extension']; |
| 470 |
list( $orig_w, $orig_h ) = getimagesize( $img_path ); |
| 471 |
|
| 472 |
// support percentage dimensions. compute percentage based on |
| 473 |
// the original dimensions |
| 474 |
if ( isset( $width ) ) { |
| 475 |
if ( stripos( $width, '%' ) !== false ) { |
| 476 |
$width = (int) ( (float) str_replace( '%', '', $width ) / 100 * $orig_w ); |
| 477 |
} |
| 478 |
} |
| 479 |
if ( isset( $height ) ) { |
| 480 |
if ( stripos( $height, '%' ) !== false ) { |
| 481 |
$height = (int) ( (float) str_replace( '%', '', $height ) / 100 * $orig_h ); |
| 482 |
} |
| 483 |
} |
| 484 |
|
| 485 |
// The only purpose of this is to determine the final width and height |
| 486 |
// without performing any actual image manipulation, which will be used |
| 487 |
// to check whether a resize was previously done. |
| 488 |
if ( isset( $width ) && $crop_only === false ) { |
| 489 |
//get image size after cropping |
| 490 |
$dims = image_resize_dimensions( $orig_w, $orig_h, $width, isset( $height ) ? $height : null, isset( $crop ) ? $crop : false ); |
| 491 |
$dst_w = isset( $dims[4] ) ? $dims[4] : null; |
| 492 |
$dst_h = isset( $dims[5] ) ? $dims[5] : null; |
| 493 |
} else if ( $crop_only === true ) { |
| 494 |
// we don't want a resize, |
| 495 |
// but only a crop in the image |
| 496 |
|
| 497 |
// get x position to start croping |
| 498 |
$src_x = ( isset( $crop_x ) ) ? $crop_x : 0; |
| 499 |
|
| 500 |
// get y position to start croping |
| 501 |
$src_y = ( isset( $crop_y ) ) ? $crop_y : 0; |
| 502 |
|
| 503 |
// width of the crop |
| 504 |
if ( isset( $crop_width ) ) { |
| 505 |
$src_w = $crop_width; |
| 506 |
} else if ( isset( $width ) ) { |
| 507 |
$src_w = $width; |
| 508 |
} else { |
| 509 |
$src_w = $orig_w; |
| 510 |
} |
| 511 |
|
| 512 |
// height of the crop |
| 513 |
if ( isset( $crop_height ) ) { |
| 514 |
$src_h = $crop_height; |
| 515 |
} else if ( isset( $height ) ) { |
| 516 |
$src_h = $height; |
| 517 |
} else { |
| 518 |
$src_h = $orig_h; |
| 519 |
} |
| 520 |
|
| 521 |
// set the width resize with the crop |
| 522 |
if ( isset( $crop_width ) && isset( $width ) ) { |
| 523 |
$dst_w = $width; |
| 524 |
} else { |
| 525 |
$dst_w = null; |
| 526 |
} |
| 527 |
|
| 528 |
// set the height resize with the crop |
| 529 |
if ( isset( $crop_height ) && isset( $height ) ) { |
| 530 |
$dst_h = $height; |
| 531 |
} else { |
| 532 |
$dst_h = null; |
| 533 |
} |
| 534 |
|
| 535 |
// allow percentages |
| 536 |
if ( isset( $dst_w ) ) { |
| 537 |
if ( stripos( $dst_w, '%' ) !== false ) { |
| 538 |
$dst_w = (int) ( (float) str_replace( '%', '', $dst_w ) / 100 * $orig_w ); |
| 539 |
} |
| 540 |
} |
| 541 |
if ( isset( $dst_h ) ) { |
| 542 |
if ( stripos( $dst_h, '%' ) !== false ) { |
| 543 |
$dst_h = (int) ( (float) str_replace( '%', '', $dst_h ) / 100 * $orig_h ); |
| 544 |
} |
| 545 |
} |
| 546 |
|
| 547 |
$dims = image_resize_dimensions( $src_w, $src_h, $dst_w, $dst_h, false ); |
| 548 |
$dst_w = $dims[4]; |
| 549 |
$dst_h = $dims[5]; |
| 550 |
|
| 551 |
// Make the pos x and pos y work with percentages |
| 552 |
if ( stripos( $src_x, '%' ) !== false ) { |
| 553 |
$src_x = (int) ( (float) str_replace( '%', '', $width ) / 100 * $orig_w ); |
| 554 |
} |
| 555 |
if ( stripos( $src_y, '%' ) !== false ) { |
| 556 |
$src_y = (int) ( (float) str_replace( '%', '', $height ) / 100 * $orig_h ); |
| 557 |
} |
| 558 |
|
| 559 |
// allow center to position crop start |
| 560 |
if ( $src_x === 'center' ) { |
| 561 |
$src_x = ( $orig_w - $src_w ) / 2; |
| 562 |
} |
| 563 |
if ( $src_y === 'center' ) { |
| 564 |
$src_y = ( $orig_h - $src_h ) / 2; |
| 565 |
} |
| 566 |
} |
| 567 |
|
| 568 |
// create the suffix for the saved file |
| 569 |
// we can use this to check whether we need to create a new file or just use an existing one. |
| 570 |
$suffix = (string) filemtime( $img_path ) . ( isset( $width ) ? str_pad( (string) $width, 5, '0', STR_PAD_LEFT ) : '00000' ) . ( isset( $height ) ? str_pad( (string) $height, 5, '0', STR_PAD_LEFT ) : '00000' ) . ( isset( $opacity ) ? str_pad( (string) $opacity, 3, '0', STR_PAD_LEFT ) : '100' ) . ( isset( $color ) ? str_pad( preg_replace( '#^\##', '', $color ), 8, '0', STR_PAD_LEFT ) : '00000000' ) . ( isset( $grayscale ) ? ( $grayscale ? '1' : '0' ) : '0' ) . ( isset( $crop ) ? ( $crop ? '1' : '0' ) : '0' ) . ( isset( $negate ) ? ( $negate ? '1' : '0' ) : '0' ) . ( isset( $crop_only ) ? ( $crop_only ? '1' : '0' ) : '0' ) . ( isset( $src_x ) ? str_pad( (string) $src_x, 5, '0', STR_PAD_LEFT ) : '00000' ) . ( isset( $src_y ) ? str_pad( (string) $src_y, 5, '0', STR_PAD_LEFT ) : '00000' ) . ( isset( $src_w ) ? str_pad( (string) $src_w, 5, '0', STR_PAD_LEFT ) : '00000' ) . ( isset( $src_h ) ? str_pad( (string) $src_h, 5, '0', STR_PAD_LEFT ) : '00000' ) . ( isset( $dst_w ) ? str_pad( (string) $dst_w, 5, '0', STR_PAD_LEFT ) : '00000' ) . ( isset( $dst_h ) ? str_pad( (string) $dst_h, 5, '0', STR_PAD_LEFT ) : '00000' ) . ( ( isset ( $quality ) && $quality > 0 && $quality <= 100 ) ? ( $quality ? (string) $quality : '0' ) : '0' ); |
| 571 |
$suffix = self::base_convert_arbitrary( $suffix, 10, 36 ); |
| 572 |
|
| 573 |
// use this to check if cropped image already exists, so we can return that instead |
| 574 |
$dst_rel_path = str_replace( '.' . $ext, '', basename( $img_path ) ); |
| 575 |
|
| 576 |
// If opacity is set, change the image type to png |
| 577 |
if ( isset( $opacity ) ) { |
| 578 |
$ext = 'png'; |
| 579 |
} |
| 580 |
|
| 581 |
|
| 582 |
// Create the upload subdirectory, this is where |
| 583 |
// we store all our generated images |
| 584 |
if ( defined( 'BFITHUMB_UPLOAD_DIR' ) ) { |
| 585 |
$upload_dir .= "/" . BFITHUMB_UPLOAD_DIR; |
| 586 |
$upload_url .= "/" . BFITHUMB_UPLOAD_DIR; |
| 587 |
} else { |
| 588 |
$upload_dir .= "/bfi_thumb"; |
| 589 |
$upload_url .= "/bfi_thumb"; |
| 590 |
} |
| 591 |
if ( ! is_dir( $upload_dir ) ) { |
| 592 |
wp_mkdir_p( $upload_dir ); |
| 593 |
} |
| 594 |
|
| 595 |
|
| 596 |
// desination paths and urls |
| 597 |
$destfilename = "{$upload_dir}/{$dst_rel_path}-{$suffix}.{$ext}"; |
| 598 |
|
| 599 |
// The urls generated have lower case extensions regardless of the original case |
| 600 |
$ext = strtolower( $ext ); |
| 601 |
$img_url = "{$upload_url}/{$dst_rel_path}-{$suffix}.{$ext}"; |
| 602 |
|
| 603 |
// if file exists, just return it |
| 604 |
if ( @file_exists( $destfilename ) && getimagesize( $destfilename ) ) { |
| 605 |
} else { |
| 606 |
// perform resizing and other filters |
| 607 |
$editor = wp_get_image_editor( $img_path ); |
| 608 |
|
| 609 |
if ( is_wp_error( $editor ) ) { |
| 610 |
return false; |
| 611 |
} |
| 612 |
|
| 613 |
/* |
| 614 |
* Perform image manipulations |
| 615 |
*/ |
| 616 |
if ( $crop_only === false ) { |
| 617 |
if ( ( isset( $width ) && $width ) || ( isset( $height ) && $height ) ) { |
| 618 |
if ( is_wp_error( $editor->resize( isset( $width ) ? $width : null, isset( $height ) ? $height : null, isset( $crop ) ? $crop : false ) ) ) { |
| 619 |
return false; |
| 620 |
} |
| 621 |
} |
| 622 |
} else { |
| 623 |
if ( is_wp_error( $editor->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h ) ) ) { |
| 624 |
return false; |
| 625 |
} |
| 626 |
} |
| 627 |
|
| 628 |
if ( isset( $negate ) ) { |
| 629 |
if ( $negate ) { |
| 630 |
if ( is_wp_error( $editor->negate() ) ) { |
| 631 |
return false; |
| 632 |
} |
| 633 |
} |
| 634 |
} |
| 635 |
|
| 636 |
if ( isset( $opacity ) ) { |
| 637 |
if ( is_wp_error( $editor->opacity( $opacity ) ) ) { |
| 638 |
return false; |
| 639 |
} |
| 640 |
} |
| 641 |
|
| 642 |
if ( isset( $grayscale ) ) { |
| 643 |
if ( $grayscale ) { |
| 644 |
if ( is_wp_error( $editor->grayscale() ) ) { |
| 645 |
return false; |
| 646 |
} |
| 647 |
} |
| 648 |
} |
| 649 |
|
| 650 |
if ( isset( $color ) ) { |
| 651 |
if ( is_wp_error( $editor->colorize( $color ) ) ) { |
| 652 |
return false; |
| 653 |
} |
| 654 |
} |
| 655 |
|
| 656 |
// set the image quality (1-100) to save this image at |
| 657 |
if ( isset( $quality ) && $quality > 0 && $quality <= 100 && $ext != 'png' ) { |
| 658 |
$editor->set_quality( $quality ); |
| 659 |
} |
| 660 |
|
| 661 |
// save our new image |
| 662 |
$mime_type = isset( $opacity ) ? 'image/png' : null; |
| 663 |
$resized_file = $editor->save( $destfilename, $mime_type ); |
| 664 |
} |
| 665 |
|
| 666 |
//return the output |
| 667 |
if ( $single ) { |
| 668 |
$image = $img_url; |
| 669 |
} else { |
| 670 |
//array return |
| 671 |
$image = array( |
| 672 |
0 => $img_url, |
| 673 |
1 => isset( $dst_w ) ? $dst_w : $orig_w, |
| 674 |
2 => isset( $dst_h ) ? $dst_h : $orig_h, |
| 675 |
); |
| 676 |
} |
| 677 |
|
| 678 |
return $image; |
| 679 |
} |
| 680 |
|
| 681 |
/** Shortens a number into a base 36 string |
| 682 |
* |
| 683 |
* @param $number string a string of numbers to convert |
| 684 |
* @param $fromBase starting base |
| 685 |
* @param $toBase base to convert the number to |
| 686 |
* |
| 687 |
* @return string base converted characters |
| 688 |
*/ |
| 689 |
protected static function base_convert_arbitrary( $number, $fromBase, $toBase ) { |
| 690 |
$digits = '0123456789abcdefghijklmnopqrstuvwxyz'; |
| 691 |
$length = strlen( $number ); |
| 692 |
$result = ''; |
| 693 |
|
| 694 |
$nibbles = array(); |
| 695 |
for ( $i = 0; $i < $length; ++$i ) { |
| 696 |
$nibbles[ $i ] = strpos( $digits, $number[ $i ] ); |
| 697 |
} |
| 698 |
|
| 699 |
do { |
| 700 |
$value = 0; |
| 701 |
$newlen = 0; |
| 702 |
|
| 703 |
for ( $i = 0; $i < $length; ++$i ) { |
| 704 |
|
| 705 |
$value = $value * $fromBase + $nibbles[ $i ]; |
| 706 |
|
| 707 |
if ( $value >= $toBase ) { |
| 708 |
$nibbles[ $newlen++ ] = (int) ( $value / $toBase ); |
| 709 |
$value %= $toBase; |
| 710 |
} else if ( $newlen > 0 ) { |
| 711 |
$nibbles[ $newlen++ ] = 0; |
| 712 |
} |
| 713 |
} |
| 714 |
|
| 715 |
$length = $newlen; |
| 716 |
$result = $digits[ $value ] . $result; |
| 717 |
} while ( $newlen != 0 ); |
| 718 |
|
| 719 |
return $result; |
| 720 |
} |
| 721 |
} |
| 722 |
} |
| 723 |
|
| 724 |
|
| 725 |
// don't use the default resizer since we want to allow resizing to larger sizes (than the original one) |
| 726 |
// Parts are copied from media.php |
| 727 |
// Crop is always applied (just like timthumb) |
| 728 |
// Don't use this inside the admin since sometimes images in the media library get resized |
| 729 |
if ( ! is_admin() ) { |
| 730 |
add_filter( 'image_resize_dimensions', 'bfi_image_resize_dimensions', 10, 5 ); |
| 731 |
} |
| 732 |
|
| 733 |
if ( ! function_exists( 'bfi_image_resize_dimensions' ) ) { |
| 734 |
function bfi_image_resize_dimensions( $payload, $orig_w, $orig_h, $dest_w, $dest_h, $crop = false ) { |
| 735 |
$aspect_ratio = $orig_w / $orig_h; |
| 736 |
|
| 737 |
$new_w = $dest_w; |
| 738 |
$new_h = $dest_h; |
| 739 |
|
| 740 |
if ( empty( $new_w ) || $new_w < 0 ) { |
| 741 |
$new_w = intval( $new_h * $aspect_ratio ); |
| 742 |
} |
| 743 |
|
| 744 |
if ( empty( $new_h ) || $new_h < 0 ) { |
| 745 |
$new_h = intval( $new_w / $aspect_ratio ); |
| 746 |
} |
| 747 |
|
| 748 |
$size_ratio = max( $new_w / $orig_w, $new_h / $orig_h ); |
| 749 |
|
| 750 |
$crop_w = round( $new_w / $size_ratio ); |
| 751 |
$crop_h = round( $new_h / $size_ratio ); |
| 752 |
$s_x = floor( ( $orig_w - $crop_w ) / 2 ); |
| 753 |
$s_y = floor( ( $orig_h - $crop_h ) / 2 ); |
| 754 |
|
| 755 |
// Safe guard against super large or zero images which might cause 500 errors |
| 756 |
if ( $new_w > 5000 || $new_h > 5000 || $new_w <= 0 || $new_h <= 0 ) { |
| 757 |
return null; |
| 758 |
} |
| 759 |
|
| 760 |
// the return array matches the parameters to imagecopyresampled() |
| 761 |
// int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h |
| 762 |
return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h ); |
| 763 |
} |
| 764 |
} |
| 765 |
|
| 766 |
|
| 767 |
// This function allows us to latch on WP image functions such as |
| 768 |
// the_post_thumbnail, get_image_tag and wp_get_attachment_image_src |
| 769 |
// so that you won't have to use the function bfi_thumb in order to do resizing. |
| 770 |
// To make this work, in the WP image functions, when specifying an |
| 771 |
// array for the image dimensions, add a 'bfi_thumb' => true to |
| 772 |
// the array, then add your normal $params arguments. |
| 773 |
// |
| 774 |
// e.g. the_post_thumbnail( array( 1024, 400, 'bfi_thumb' => true, 'grayscale' => true ) ); |
| 775 |
add_filter( 'image_downsize', 'bfi_image_downsize', 1, 3 ); |
| 776 |
|
| 777 |
if ( ! function_exists( 'bfi_image_downsize' ) ) { |
| 778 |
function bfi_image_downsize( $out, $id, $size ) { |
| 779 |
if ( ! is_array( $size ) ) { |
| 780 |
return false; |
| 781 |
} |
| 782 |
if ( ! array_key_exists( 'bfi_thumb', $size ) ) { |
| 783 |
return false; |
| 784 |
} |
| 785 |
if ( empty( $size['bfi_thumb'] ) ) { |
| 786 |
return false; |
| 787 |
} |
| 788 |
|
| 789 |
$img_url = wp_get_attachment_url( $id ); |
| 790 |
|
| 791 |
$params = $size; |
| 792 |
$params['width'] = $size[0]; |
| 793 |
$params['height'] = $size[1]; |
| 794 |
|
| 795 |
$resized_img_url = bfi_thumb( $img_url, $params ); |
| 796 |
|
| 797 |
return array( $resized_img_url, $size[0], $size[1], false ); |
| 798 |
} |
| 799 |
} |
| 800 |
|
