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800 lines
24 KiB
800 lines
24 KiB
7 years ago
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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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/** 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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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly.
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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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if ( ! function_exists( 'bfi_thumb' ) ) {
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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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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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* 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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class BFI_Class_Factory {
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public static $versions = array();
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public static $latestClass = array();
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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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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[ $baseClassName ] );
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}
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return self::$latestClass[ $baseClassName ];
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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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* 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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// 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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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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* Include the WP Image classes
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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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* Enhanced Imagemagick Image Editor
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*/
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if ( ! class_exists( 'BFI_Image_Editor_Imagick_1_3' ) ) {
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BFI_Class_Factory::addClassVersion( 'BFI_Image_Editor_Imagick', 'BFI_Image_Editor_Imagick_1_3', '1.3' );
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class BFI_Image_Editor_Imagick_1_3 extends WP_Image_Editor_Imagick {
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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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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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/** 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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/** 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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/** 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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* Enhanced GD Image Editor
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*/
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if ( ! class_exists( 'BFI_Image_Editor_GD_1_3' ) ) {
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BFI_Class_Factory::addClassVersion( 'BFI_Image_Editor_GD', 'BFI_Image_Editor_GD_1_3', '1.3' );
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class BFI_Image_Editor_GD_1_3 extends WP_Image_Editor_GD {
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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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// Add alpha blending
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imagealphablending( $rotated, true );
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imagesavealpha( $rotated, true );
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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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return true;
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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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/** 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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$filtered = $this->_opacity( $this->image, $opacity );
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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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return true;
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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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// from: http://php.net/manual/en/function.imagefilter.php
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// params: image resource id, opacity (eg. 0.0-1.0)
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protected function _opacity( $image, $opacity ) {
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if ( ! function_exists( 'imagealphablending' ) || ! function_exists( 'imagecolorat' ) || ! function_exists( 'imagecolorallocatealpha' ) || ! function_exists( 'imagesetpixel' ) ) {
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return false;
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}
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// get image width and height
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$w = imagesx( $image );
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$h = imagesy( $image );
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// turn alpha blending off
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imagealphablending( $image, false );
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// find the most opaque pixel in the image (the one with the smallest alpha value)
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$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;
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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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// loop through image pixels and modify alpha for each
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for ( $x = 0; $x < $w; $x++ ) {
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for ( $y = 0; $y < $h; $y++ ) {
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// get current alpha value (represents the TANSPARENCY!)
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$colorxy = imagecolorat( $image, $x, $y );
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$alpha = ( $colorxy >> 24 ) & 0xFF;
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// calculate new alpha
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if ( $minalpha !== 127 ) {
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$alpha = 127 + 127 * $opacity * ( $alpha - 127 ) / ( 127 - $minalpha );
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} else {
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$alpha += 127 * $opacity;
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}
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// get the color index with new alpha
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$alphacolorxy = imagecolorallocatealpha( $image, ( $colorxy >> 16 ) & 0xFF, ( $colorxy >> 8 ) & 0xFF, $colorxy & 0xFF, $alpha );
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// set pixel with the new color + opacity
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if ( ! imagesetpixel( $image, $x, $y, $alphacolorxy ) ) {
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return false;
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}
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}
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}
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imagesavealpha( $image, true );
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return $image;
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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( $hexColor ) {
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if ( function_exists( 'imagefilter' ) && function_exists( 'imagesavealpha' ) && function_exists( 'imagealphablending' ) ) {
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$hexColor = preg_replace( '#^\##', '', $hexColor );
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$r = hexdec( substr( $hexColor, 0, 2 ) );
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$g = hexdec( substr( $hexColor, 2, 2 ) );
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$b = hexdec( substr( $hexColor, 2, 2 ) );
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imagealphablending( $this->image, false );
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if ( imagefilter( $this->image, IMG_FILTER_COLORIZE, $r, $g, $b, 0 ) ) {
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imagesavealpha( $this->image, true );
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return true;
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}
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}
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return new WP_Error( 'image_colorize_error', 'Image color change failed.', $this->file );
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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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if ( function_exists( 'imagefilter' ) ) {
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if ( imagefilter( $this->image, IMG_FILTER_GRAYSCALE ) ) {
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return true;
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}
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}
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return new WP_Error( 'image_grayscale_error', 'Image grayscale failed.', $this->file );
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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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*
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||
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* @return boolean|WP_Error
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||
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*/
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||
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public function negate() {
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|
|
if ( function_exists( 'imagefilter' ) ) {
|
||
|
|
if ( imagefilter( $this->image, IMG_FILTER_NEGATE ) ) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return new WP_Error( 'image_negate_error', 'Image negate failed.', $this->file );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Main Class
|
||
|
|
*/
|
||
|
|
if ( ! class_exists( 'BFI_Thumb_1_3' ) ) {
|
||
|
|
|
||
|
|
BFI_Class_Factory::addClassVersion( 'BFI_Thumb', 'BFI_Thumb_1_3', '1.3' );
|
||
|
|
|
||
|
|
class BFI_Thumb_1_3 {
|
||
|
|
|
||
|
|
/** Uses WP's Image Editor Class to resize and filter images
|
||
|
|
* Inspired by: https://github.com/sy4mil/Aqua-Resizer/blob/master/aq_resizer.php
|
||
|
|
*
|
||
|
|
* @param $url string the local image URL to manipulate
|
||
|
|
* @param $params array the options to perform on the image. Keys and values supported:
|
||
|
|
* 'width' int pixels
|
||
|
|
* 'height' int pixels
|
||
|
|
* 'opacity' int 0-100
|
||
|
|
* 'color' string hex-color #000000-#ffffff
|
||
|
|
* 'grayscale' bool
|
||
|
|
* 'crop' bool
|
||
|
|
* 'negate' bool
|
||
|
|
* 'crop_only' bool
|
||
|
|
* 'crop_x' bool string
|
||
|
|
* 'crop_y' bool string
|
||
|
|
* 'crop_width' bool string
|
||
|
|
* 'crop_height' bool string
|
||
|
|
* 'quality' int 1-100
|
||
|
|
* @param $single boolean, if false then an array of data will be returned
|
||
|
|
*
|
||
|
|
* @return string|array
|
||
|
|
*/
|
||
|
|
public static function thumb( $url, $params = array(), $single = true ) {
|
||
|
|
extract( $params );
|
||
|
|
|
||
|
|
//validate inputs
|
||
|
|
if ( ! $url ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$crop_only = isset( $crop_only ) ? $crop_only : false;
|
||
|
|
|
||
|
|
//define upload path & dir
|
||
|
|
$upload_info = wp_upload_dir();
|
||
|
|
$upload_dir = $upload_info['basedir'];
|
||
|
|
$upload_url = $upload_info['baseurl'];
|
||
|
|
$theme_url = get_template_directory_uri();
|
||
|
|
$theme_dir = get_template_directory();
|
||
|
|
|
||
|
|
// find the path of the image. Perform 2 checks:
|
||
|
|
// #1 check if the image is in the uploads folder
|
||
|
|
if ( strpos( $url, $upload_url ) !== false ) {
|
||
|
|
$rel_path = str_replace( $upload_url, '', $url );
|
||
|
|
$img_path = $upload_dir . $rel_path;
|
||
|
|
// #2 check if the image is in the current theme folder
|
||
|
|
} else if ( strpos( $url, $theme_url ) !== false ) {
|
||
|
|
$rel_path = str_replace( $theme_url, '', $url );
|
||
|
|
$img_path = $theme_dir . $rel_path;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Fail if we can't find the image in our WP local directory
|
||
|
|
if ( empty( $img_path ) ) {
|
||
|
|
return $url;
|
||
|
|
}
|
||
|
|
|
||
|
|
// check if img path exists, and is an image indeed
|
||
|
|
if ( ! @file_exists( $img_path ) || ! getimagesize( $img_path ) ) {
|
||
|
|
return $url;
|
||
|
|
}
|
||
|
|
|
||
|
|
// This is the filename
|
||
|
|
$basename = basename( $img_path );
|
||
|
|
|
||
|
|
//get image info
|
||
|
|
$info = pathinfo( $img_path );
|
||
|
|
$ext = $info['extension'];
|
||
|
|
list( $orig_w, $orig_h ) = getimagesize( $img_path );
|
||
|
|
|
||
|
|
// support percentage dimensions. compute percentage based on
|
||
|
|
// the original dimensions
|
||
|
|
if ( isset( $width ) ) {
|
||
|
|
if ( stripos( $width, '%' ) !== false ) {
|
||
|
|
$width = (int) ( (float) str_replace( '%', '', $width ) / 100 * $orig_w );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ( isset( $height ) ) {
|
||
|
|
if ( stripos( $height, '%' ) !== false ) {
|
||
|
|
$height = (int) ( (float) str_replace( '%', '', $height ) / 100 * $orig_h );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The only purpose of this is to determine the final width and height
|
||
|
|
// without performing any actual image manipulation, which will be used
|
||
|
|
// to check whether a resize was previously done.
|
||
|
|
if ( isset( $width ) && $crop_only === false ) {
|
||
|
|
//get image size after cropping
|
||
|
|
$dims = image_resize_dimensions( $orig_w, $orig_h, $width, isset( $height ) ? $height : null, isset( $crop ) ? $crop : false );
|
||
|
|
$dst_w = $dims[4];
|
||
|
|
$dst_h = $dims[5];
|
||
|
|
} else if ( $crop_only === true ) {
|
||
|
|
// we don't want a resize,
|
||
|
|
// but only a crop in the image
|
||
|
|
|
||
|
|
// get x position to start croping
|
||
|
|
$src_x = ( isset( $crop_x ) ) ? $crop_x : 0;
|
||
|
|
|
||
|
|
// get y position to start croping
|
||
|
|
$src_y = ( isset( $crop_y ) ) ? $crop_y : 0;
|
||
|
|
|
||
|
|
// width of the crop
|
||
|
|
if ( isset( $crop_width ) ) {
|
||
|
|
$src_w = $crop_width;
|
||
|
|
} else if ( isset( $width ) ) {
|
||
|
|
$src_w = $width;
|
||
|
|
} else {
|
||
|
|
$src_w = $orig_w;
|
||
|
|
}
|
||
|
|
|
||
|
|
// height of the crop
|
||
|
|
if ( isset( $crop_height ) ) {
|
||
|
|
$src_h = $crop_height;
|
||
|
|
} else if ( isset( $height ) ) {
|
||
|
|
$src_h = $height;
|
||
|
|
} else {
|
||
|
|
$src_h = $orig_h;
|
||
|
|
}
|
||
|
|
|
||
|
|
// set the width resize with the crop
|
||
|
|
if ( isset( $crop_width ) && isset( $width ) ) {
|
||
|
|
$dst_w = $width;
|
||
|
|
} else {
|
||
|
|
$dst_w = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
// set the height resize with the crop
|
||
|
|
if ( isset( $crop_height ) && isset( $height ) ) {
|
||
|
|
$dst_h = $height;
|
||
|
|
} else {
|
||
|
|
$dst_h = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
// allow percentages
|
||
|
|
if ( isset( $dst_w ) ) {
|
||
|
|
if ( stripos( $dst_w, '%' ) !== false ) {
|
||
|
|
$dst_w = (int) ( (float) str_replace( '%', '', $dst_w ) / 100 * $orig_w );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ( isset( $dst_h ) ) {
|
||
|
|
if ( stripos( $dst_h, '%' ) !== false ) {
|
||
|
|
$dst_h = (int) ( (float) str_replace( '%', '', $dst_h ) / 100 * $orig_h );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$dims = image_resize_dimensions( $src_w, $src_h, $dst_w, $dst_h, false );
|
||
|
|
$dst_w = $dims[4];
|
||
|
|
$dst_h = $dims[5];
|
||
|
|
|
||
|
|
// Make the pos x and pos y work with percentages
|
||
|
|
if ( stripos( $src_x, '%' ) !== false ) {
|
||
|
|
$src_x = (int) ( (float) str_replace( '%', '', $width ) / 100 * $orig_w );
|
||
|
|
}
|
||
|
|
if ( stripos( $src_y, '%' ) !== false ) {
|
||
|
|
$src_y = (int) ( (float) str_replace( '%', '', $height ) / 100 * $orig_h );
|
||
|
|
}
|
||
|
|
|
||
|
|
// allow center to position crop start
|
||
|
|
if ( $src_x === 'center' ) {
|
||
|
|
$src_x = ( $orig_w - $src_w ) / 2;
|
||
|
|
}
|
||
|
|
if ( $src_y === 'center' ) {
|
||
|
|
$src_y = ( $orig_h - $src_h ) / 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// create the suffix for the saved file
|
||
|
|
// we can use this to check whether we need to create a new file or just use an existing one.
|
||
|
|
$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' );
|
||
|
|
$suffix = self::base_convert_arbitrary( $suffix, 10, 36 );
|
||
|
|
|
||
|
|
// use this to check if cropped image already exists, so we can return that instead
|
||
|
|
$dst_rel_path = str_replace( '.' . $ext, '', basename( $img_path ) );
|
||
|
|
|
||
|
|
// If opacity is set, change the image type to png
|
||
|
|
if ( isset( $opacity ) ) {
|
||
|
|
$ext = 'png';
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Create the upload subdirectory, this is where
|
||
|
|
// we store all our generated images
|
||
|
|
if ( defined( 'BFITHUMB_UPLOAD_DIR' ) ) {
|
||
|
|
$upload_dir .= "/" . BFITHUMB_UPLOAD_DIR;
|
||
|
|
$upload_url .= "/" . BFITHUMB_UPLOAD_DIR;
|
||
|
|
} else {
|
||
|
|
$upload_dir .= "/bfi_thumb";
|
||
|
|
$upload_url .= "/bfi_thumb";
|
||
|
|
}
|
||
|
|
if ( ! is_dir( $upload_dir ) ) {
|
||
|
|
wp_mkdir_p( $upload_dir );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// desination paths and urls
|
||
|
|
$destfilename = "{$upload_dir}/{$dst_rel_path}-{$suffix}.{$ext}";
|
||
|
|
|
||
|
|
// The urls generated have lower case extensions regardless of the original case
|
||
|
|
$ext = strtolower( $ext );
|
||
|
|
$img_url = "{$upload_url}/{$dst_rel_path}-{$suffix}.{$ext}";
|
||
|
|
|
||
|
|
// if file exists, just return it
|
||
|
|
if ( @file_exists( $destfilename ) && getimagesize( $destfilename ) ) {
|
||
|
|
} else {
|
||
|
|
// perform resizing and other filters
|
||
|
|
$editor = wp_get_image_editor( $img_path );
|
||
|
|
|
||
|
|
if ( is_wp_error( $editor ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Perform image manipulations
|
||
|
|
*/
|
||
|
|
if ( $crop_only === false ) {
|
||
|
|
if ( ( isset( $width ) && $width ) || ( isset( $height ) && $height ) ) {
|
||
|
|
if ( is_wp_error( $editor->resize( isset( $width ) ? $width : null, isset( $height ) ? $height : null, isset( $crop ) ? $crop : false ) ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ( is_wp_error( $editor->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h ) ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $negate ) ) {
|
||
|
|
if ( $negate ) {
|
||
|
|
if ( is_wp_error( $editor->negate() ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $opacity ) ) {
|
||
|
|
if ( is_wp_error( $editor->opacity( $opacity ) ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $grayscale ) ) {
|
||
|
|
if ( $grayscale ) {
|
||
|
|
if ( is_wp_error( $editor->grayscale() ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $color ) ) {
|
||
|
|
if ( is_wp_error( $editor->colorize( $color ) ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// set the image quality (1-100) to save this image at
|
||
|
|
if ( isset( $quality ) && $quality > 0 && $quality <= 100 && $ext != 'png' ) {
|
||
|
|
$editor->set_quality( $quality );
|
||
|
|
}
|
||
|
|
|
||
|
|
// save our new image
|
||
|
|
$mime_type = isset( $opacity ) ? 'image/png' : null;
|
||
|
|
$resized_file = $editor->save( $destfilename, $mime_type );
|
||
|
|
}
|
||
|
|
|
||
|
|
//return the output
|
||
|
|
if ( $single ) {
|
||
|
|
$image = $img_url;
|
||
|
|
} else {
|
||
|
|
//array return
|
||
|
|
$image = array(
|
||
|
|
0 => $img_url,
|
||
|
|
1 => isset( $dst_w ) ? $dst_w : $orig_w,
|
||
|
|
2 => isset( $dst_h ) ? $dst_h : $orig_h,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $image;
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Shortens a number into a base 36 string
|
||
|
|
*
|
||
|
|
* @param $number string a string of numbers to convert
|
||
|
|
* @param $fromBase starting base
|
||
|
|
* @param $toBase base to convert the number to
|
||
|
|
*
|
||
|
|
* @return string base converted characters
|
||
|
|
*/
|
||
|
|
protected static function base_convert_arbitrary( $number, $fromBase, $toBase ) {
|
||
|
|
$digits = '0123456789abcdefghijklmnopqrstuvwxyz';
|
||
|
|
$length = strlen( $number );
|
||
|
|
$result = '';
|
||
|
|
|
||
|
|
$nibbles = array();
|
||
|
|
for ( $i = 0; $i < $length; ++$i ) {
|
||
|
|
$nibbles[ $i ] = strpos( $digits, $number[ $i ] );
|
||
|
|
}
|
||
|
|
|
||
|
|
do {
|
||
|
|
$value = 0;
|
||
|
|
$newlen = 0;
|
||
|
|
|
||
|
|
for ( $i = 0; $i < $length; ++$i ) {
|
||
|
|
|
||
|
|
$value = $value * $fromBase + $nibbles[ $i ];
|
||
|
|
|
||
|
|
if ( $value >= $toBase ) {
|
||
|
|
$nibbles[ $newlen++ ] = (int) ( $value / $toBase );
|
||
|
|
$value %= $toBase;
|
||
|
|
} else if ( $newlen > 0 ) {
|
||
|
|
$nibbles[ $newlen++ ] = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$length = $newlen;
|
||
|
|
$result = $digits[ $value ] . $result;
|
||
|
|
} while ( $newlen != 0 );
|
||
|
|
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// don't use the default resizer since we want to allow resizing to larger sizes (than the original one)
|
||
|
|
// Parts are copied from media.php
|
||
|
|
// Crop is always applied (just like timthumb)
|
||
|
|
// Don't use this inside the admin since sometimes images in the media library get resized
|
||
|
|
if ( ! is_admin() ) {
|
||
|
|
add_filter( 'image_resize_dimensions', 'bfi_image_resize_dimensions', 10, 5 );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! function_exists( 'bfi_image_resize_dimensions' ) ) {
|
||
|
|
function bfi_image_resize_dimensions( $payload, $orig_w, $orig_h, $dest_w, $dest_h, $crop = false ) {
|
||
|
|
$aspect_ratio = $orig_w / $orig_h;
|
||
|
|
|
||
|
|
$new_w = $dest_w;
|
||
|
|
$new_h = $dest_h;
|
||
|
|
|
||
|
|
if ( empty( $new_w ) || $new_w < 0 ) {
|
||
|
|
$new_w = intval( $new_h * $aspect_ratio );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( empty( $new_h ) || $new_h < 0 ) {
|
||
|
|
$new_h = intval( $new_w / $aspect_ratio );
|
||
|
|
}
|
||
|
|
|
||
|
|
$size_ratio = max( $new_w / $orig_w, $new_h / $orig_h );
|
||
|
|
|
||
|
|
$crop_w = round( $new_w / $size_ratio );
|
||
|
|
$crop_h = round( $new_h / $size_ratio );
|
||
|
|
$s_x = floor( ( $orig_w - $crop_w ) / 2 );
|
||
|
|
$s_y = floor( ( $orig_h - $crop_h ) / 2 );
|
||
|
|
|
||
|
|
// Safe guard against super large or zero images which might cause 500 errors
|
||
|
|
if ( $new_w > 5000 || $new_h > 5000 || $new_w <= 0 || $new_h <= 0 ) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
// the return array matches the parameters to imagecopyresampled()
|
||
|
|
// int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h
|
||
|
|
return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// This function allows us to latch on WP image functions such as
|
||
|
|
// the_post_thumbnail, get_image_tag and wp_get_attachment_image_src
|
||
|
|
// so that you won't have to use the function bfi_thumb in order to do resizing.
|
||
|
|
// To make this work, in the WP image functions, when specifying an
|
||
|
|
// array for the image dimensions, add a 'bfi_thumb' => true to
|
||
|
|
// the array, then add your normal $params arguments.
|
||
|
|
//
|
||
|
|
// e.g. the_post_thumbnail( array( 1024, 400, 'bfi_thumb' => true, 'grayscale' => true ) );
|
||
|
|
add_filter( 'image_downsize', 'bfi_image_downsize', 1, 3 );
|
||
|
|
|
||
|
|
if ( ! function_exists( 'bfi_image_downsize' ) ) {
|
||
|
|
function bfi_image_downsize( $out, $id, $size ) {
|
||
|
|
if ( ! is_array( $size ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if ( ! array_key_exists( 'bfi_thumb', $size ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if ( empty( $size['bfi_thumb'] ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$img_url = wp_get_attachment_url( $id );
|
||
|
|
|
||
|
|
$params = $size;
|
||
|
|
$params['width'] = $size[0];
|
||
|
|
$params['height'] = $size[1];
|
||
|
|
|
||
|
|
$resized_img_url = bfi_thumb( $img_url, $params );
|
||
|
|
|
||
|
|
return array( $resized_img_url, $size[0], $size[1], false );
|
||
|
|
}
|
||
|
|
}
|