/**
* Uses WP's Image Editor Class to crop and resize images.
*
* Derived from bfithumb.
* @link https://github.com/bfintal/bfi_thumb
* Incorporated crop only from Github pull request 13
* @link https://github.com/bfintal/bfi_thumb/pull/13
* Also incorporates positional cropping and image quality change from the Dominic Whittle bfithumb fork:
* @link https://github.com/dominicwhittle/bfi_thumb
* Crop mode support was inspired by TimThumb.
* @link http://www.binarymoon.co.uk/projects/timthumb/
*
* bfiThumb was inspired by Aqua Resizer
* @url https://github.com/syamilmj/Aqua-Resizer
*
* @todo Should an option be added to control the order filters should be applied be added? Filter order can affect result...
*
* Accepted option for the $atts property are:
* width (int|string) Width in pixels or percentage. If using percentage, the percentage symbol must be included, example `50%`.
* height (int|string) Height in pixels or percentage. If using percentage, the percentage symbol must be included, example `50%`.
*
* negate (bool) Whether or not to apply the negate filter. Default: FALSE
* grayscale (bool) Whether or not to apply the grayscale filter. Default: FALSE
* brightness (int) Adjust the image brightness. Valid range is -255–255 (-255 = min brightness, 0 = no change, +255 = max brightness). Default: 0
* colorize (string) Colorize the image. Either a valid hex-color #000000–#ffffff or a HTML named color like `red` can be supplied. Default: NULL
* @see cnColor::$colors for a list of valid named colors.
* contrast (int) Ajust the image contrast. Valid range is -100–100 (-100 = max contrast, 0 = no change, +100 = min contrast [note the direction]) Default: 0
* detect_edges (bool) Whether of not to apply the detect edges filter. Default: FALSE
* emboss (bool) Whether or not to apply the emboss filter. Default: FALSE
* gassian_blur (bool) Whether of not to apply a gaussian blur. Default: FALSE
* blur (bool) Whether or not to apply the blur filter. Default: FALSE
* sketchy (bool) Whether or not to apply the the skethy filter. Default: FALSE
* sharpen (bool) Whether or not to apply the sharpen filter. Default: FALSE
* smooth (int) Apply the smooth filter. Valid range is -100–100 (-100 = max smooth, 100 = min smooth). Default: NULL
* opacity (int) Set the image opacity. Valid range is 0–100 (0 = fully transparent, 100 = fully opaque). Default: 100
*
* crop_mode (int) Which crop mode to utilize when rescaling the image. Valid range is 0–3. Default: 1
* 0 == Resize to Fit specified dimensions with no cropping. Aspect ratio will not be maintained.
* 1 == Crop and resize to best fit dimensions maintaining aspect ration. Default.
* 2 == Resize proportionally to fit entire image into specified dimensions, and add margins if required.
* Use the canvas_color option to set the color to be used when adding margins.
* 3 == Resize proportionally adjusting size of scaled image so there are no margins added.
* crop_focus (array|string) The crop focus/positional cropping is used to determine the center origin of a crop when crop_mode is set 1.
* Valid range is (float) 0.0–1.0
* Default: array( .5, .5)
* Text options are also supported:
* 'left,top' | array( 'left', 'top' ) == array( 0, 0 )
* 'center,top' | array( 'center', 'top' ) == array( .5, 0 )
* 'right,top' | array( 'right', 'top' ) == array( 1, 0 )
* 'left,center' | array( 'left', 'center' ) == array( 0, .5 )
* 'center,center' | array( 'center', 'center' ) == array( .5, .5) [the default crop focus].
* 'right,center' | array( 'right', 'center' ) == array( 1, .5 )
* 'left,bottom' | array( 'left', 'bottom' ) == array( 0, 1 )
* 'center,bottom' | array( 'center', 'bottom' ) == array( .5, 1 )
* 'right,bottom' | array( 'right', 'bottom' ) == array( 1, 1 )
*
* crop_only (bool) Whether or not to just crop the image.
* If set to TRUE, crop_x, crop_y, crop_width, crop_height must be supplied.
* This overrides crop_mode.
* Default: FALSE
* crop_x (int|string) The x-axis crop origin start in pixels or percentage. If using percentage, the percentage symbol must be included, example `50%`.
* crop_y (int|string) The y-axis crop origin start in pixels or percentage. If using percentage, the percentage symbol must be included, example `50%`.
* crop_width (int|string) The resize width of the crop in pixels or percentage. If using percentage, the percentage symbol must be included, example `50%`.
* The width option can be set to determine the final scaled width.
* crop_height (int|string) The resize height of the crop in pixels or percentage. If using percentage, the percentage symbol must be included, example `50%`.
* The height option can be set to determine the final scaled height.
*
* canvas_color (string) Either a valid hex-color #000000–#ffffff or a HTML named color like `red` can be supplied or set to 'transparent'.
* The canvas_color is only used when using crop_mode=2. This will be the color of the margins.
* Default: #FFFFFF
* @see cnColor::$colors for a list of valid named colors.
*
* quality (int) The image quality to be used when saving the image. Valid range is 1–100. Default: 90
*
* @param string $source The local image path or URL to process. The image must be in the upload folder or the theme folder.
* @param array $atts An associative array containing the options used to process the image.
* @param string $return
*
* @return mixed array | object | string | stream
* If $return is `base64` then base64 encoded image data URI will be returned. Suitable for use in CSS or img src attribute.
* If $return is `data` and array of the image meta is returned.
* If $return is `editor` an instance if the WP_Image_Editor is returned.
* If $return is `stream` the image resource will be streamed to the browser with the correct headers set.
* If $return is `url` the image URL will be returned. [Default]
*/
public static function get($source, $atts = array(), $return = 'url')
{
global $wp_filter;
// Increase PHP script execution by 60. This should help on hosts
// that permit this change from page load timeouts from occurring
// due to large number of images that might have to be created and cached.
@set_time_limit(60);
// Set artificially high because GD uses uncompressed images in memory.
// Even though Imagick uses less PHP memory than GD, set higher limit for users that have low PHP.ini limits.
@ini_set('memory_limit', apply_filters('image_memory_limit', WP_MAX_MEMORY_LIMIT));
$filter = array();
$methods = array();
$log = new cnLog_Stateless();
/*
* Temporarily store the filters hooked to the image editor filters.
*/
$filter['editors'] = isset($wp_filter['wp_image_editors']) ? $wp_filter['wp_image_editors'] : '';
$filter['resize'] = isset($wp_filter['image_resize_dimensions']) ? $wp_filter['image_resize_dimensions'] : '';
/*
* Remove all filters hooked into the the image editor filters to prevent conflicts.
*/
remove_all_filters('wp_image_editors');
remove_all_filters('image_resize_dimensions');
/*
* Start an instance of the logger if WP_DEBUG is defind and TRUE.
*/
$log->add('image_process_start', __('Image processing started.', 'connections'));
/*
* Use the cnImage editors.
*/
add_filter('wp_image_editors', array(__CLASS__, 'imageEditors'));
/*
* Do not use the default resizer since we want to allow resizing to larger sizes than the original image.
* Parts are borrowed from media.php file in WordPress core.
*/
add_filter('image_resize_dimensions', array(__CLASS__, 'resize_dimensions'), 10, 6);
$defaults = array('width' => 0, 'height' => 0, 'negate' => FALSE, 'grayscale' => FALSE, 'brightness' => 0, 'colorize' => NULL, 'contrast' => 0, 'detect_edges' => FALSE, 'emboss' => FALSE, 'gaussian_blur' => FALSE, 'blur' => FALSE, 'sketchy' => FALSE, 'sharpen' => FALSE, 'smooth' => NULL, 'opacity' => 100, 'crop_mode' => 1, 'crop_focus' => array(0.5, 0.5), 'crop_only' => FALSE, 'canvas_color' => '#FFFFFF', 'quality' => 90, 'sub_dir' => '');
$atts = wp_parse_args(apply_filters('cn_get_image_atts', $atts, $source, $return), $defaults);
do_action('cn_image_get', $atts, $source, $return);
/**
* @var $width
* @var $height
* @var $negate
* @var $grayscale
* @var $brightness
* @var $colorize
* @var $contrast
* @var $detect_edges
* @var $emboss
* @var $gaussian_blur
* @var $blur
* @var $sketchy
* @var $sharpen
* @var $smooth
* @var $opacity
* @var $crop_mode
* @var $crop_focus
* @var $crop_only
* @var $canvas_color
* @var $quality
* @var $sub_dir
*/
extract($atts);
/*
* --> START <-- Sanitize/Validate $atts values.
*/
if (path_is_absolute($source)) {
$log->add('image_path', __(sprintf('Supplied Source Path: %s', $source), 'connections'));
} else {
$source = esc_url($source);
$log->add('image_url', __(sprintf('Supplied Source URL: %s', $source), 'connections'));
}
if (empty($source)) {
return new WP_Error('no_path_or_url_provided', __('No image path or URL supplied.', 'connections'), $source);
}
if (!is_bool($negate)) {
$negate = FALSE;
}
if (!is_bool($grayscale)) {
$grayscale = FALSE;
}
if (!is_numeric($brightness) || empty($brightness)) {
unset($brightness);
}
if (!is_numeric($contrast) || empty($contrast)) {
unset($contrast);
}
if (!is_null($colorize)) {
// If $colorize is a HEX color, ensure it is hashed.
$colorize = cnFormatting::maybeHashHEXColor($colorize);
// Check to see if $colorize is a valid HEX color.
if (!cnSanitize::hexColor($colorize)) {
// Since $colorize is not a valid HEX color, check to see if it is a named color.
$colorize = cnColor::name2hex($colorize);
// If $colorize is not a named color, unset it.
if ($colorize === FALSE) {
unset($colorize);
}
}
} else {
unset($colorize);
}
if (!is_bool($detect_edges)) {
$detect_edges = FALSE;
}
if (!is_bool($emboss)) {
$emboss = FALSE;
}
if (!is_bool($gaussian_blur)) {
$gaussian_blur = FALSE;
}
if (!is_bool($blur)) {
$blur = FALSE;
}
if (!is_bool($sketchy)) {
$sketchy = FALSE;
}
if (!is_bool($sharpen)) {
$sharpen = FALSE;
}
if (!is_numeric($smooth) || is_null($smooth)) {
unset($smooth);
}
// Ensure valid value for opacity.
if (!is_numeric($opacity)) {
$opacity = 100;
}
// Ensure valid value for crop mode.
if (filter_var((int) $crop_mode, FILTER_VALIDATE_INT, array('options' => array('min_range' => 0, 'max_range' => 3))) === FALSE) {
$crop_mode = 1;
}
$log->add('image_crop_mode', __(sprintf('Crop Mode: %d', $crop_mode), 'connections'));
// Crop can be defined as either an array or string, sanitized/validate both.
if (is_array($crop_focus) || is_string($crop_focus)) {
// If $crop_focus is a string, lets check if is a positional crop and convert to an array.
if (is_string($crop_focus) && stripos($crop_focus, ',') !== FALSE) {
$crop_focus = explode(',', $crop_focus);
array_walk($crop_focus, 'trim');
}
// Convert the string values to their float equivalents.
if (is_string($crop_focus[0])) {
switch ($crop_focus[0]) {
case 'left':
$crop_focus[0] = 0;
break;
case 'right':
$crop_focus[0] = 1;
break;
default:
$crop_focus[0] = 0.5;
break;
}
}
if (is_string($crop_focus[1])) {
switch ($crop_focus[1]) {
case 'top':
$crop_focus[1] = 0;
break;
case 'bottom':
$crop_focus[1] = 1;
break;
default:
$crop_focus[1] = 0.5;
break;
}
}
// Ensure if an array was supplied, that there are only two keys, if not, set the default positional crop.
if (count($crop_focus) !== 2) {
$crop_focus = array(0.5, 0.5);
// Values must be a float within the range of 0–1, if is not, set the default positional crop.
} else {
if ((!$crop_focus[0] >= 0 || !$crop_focus <= 1) && filter_var((double) $crop_focus[0], FILTER_VALIDATE_FLOAT) === FALSE) {
$crop_focus[0] = 0.5;
}
if ((!$crop_focus[1] >= 0 || !$crop_focus <= 1) && filter_var((double) $crop_focus[1], FILTER_VALIDATE_FLOAT) === FALSE) {
$crop_focus[1] = 0.5;
}
}
$log->add('image_crop_focus', 'Crop Focus: ' . implode(',', $crop_focus));
} else {
// If $crop_focus is not an array, it must be a (bool) FALSE and if it is not, set $crop_focus to FALSE.
$crop_focus = FALSE;
}
if (!is_bool($crop_only)) {
$crop_only = FALSE;
}
// If $canvas_color is a HEX color, ensure it is hashed.
$canvas_color = cnFormatting::maybeHashHEXColor($canvas_color);
// Check to see if $canvas_color is a valid HEX color.
if (!cnSanitize::hexColor($canvas_color)) {
// Check to see if it is `transparent`, if not, check if it is a named color.
if (strtolower($canvas_color) === 'transparent') {
$canvas_color = 'transparent';
} else {
// Check to see if it is a named color.
$canvas_color = cnColor::name2hex($canvas_color);
// Not a named color, set the default.
if ($canvas_color === FALSE) {
$canvas_color = '#FFFFFF';
}
}
}
// Ensure valid value for $quality. If invalid valid is supplied reset to the default of 90, matching WP core.
if (filter_var((int) $quality, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 100))) === FALSE) {
$quality = 90;
}
/*
* --> END <-- Sanitize/Validate $atts values.
*/
// Define upload path & dir.
$upload_dir = CN_IMAGE_PATH;
$upload_url = CN_IMAGE_BASE_URL;
// Get image info or return WP_Error.
if (is_wp_error($image_info = self::info($source))) {
return $image_info;
}
$log->add('image_path', __(sprintf('Verified Source Path: %s', $image_info['path']), 'connections'));
// This is the filename.
$basename = $image_info['basename'];
$log->add('image_base_filename', 'Original filename: ' . $basename);
// Path/File info.
$ext = $image_info['extension'];
// Image info.
$orig_w = $image_info[0];
$orig_h = $image_info[1];
$orig_mime_type = $image_info['mime'];
$log->add('image_original_info', 'Original width: ' . $orig_w);
$log->add('image_original_info', 'Original height: ' . $orig_h);
$log->add('image_original_info', 'Original mime: ' . $orig_mime_type);
// Support percentage dimensions. Compute percentage based on the original dimensions.
if (is_string($width) && !is_numeric($width)) {
if (stripos($width, '%') !== FALSE) {
$log->add('image_width_percentage', 'Width set as percentage.');
$width = (int) ((double) str_replace('%', '', $width) / 100 * $orig_w);
$log->add('image_width', 'Width: ' . $width);
}
} else {
$width = absint($width);
$log->add('image_width', 'Width: ' . ($width === 0 ? '0' : $width));
}
if (is_string($height) && !is_numeric($height)) {
if (stripos($height, '%') !== FALSE) {
$log->add('image_height_percentage', 'Height set as percentage.');
$height = (int) ((double) str_replace('%', '', $height) / 100 * $orig_h);
$log->add('image_height', 'Height: ' . $height);
}
} else {
$height = absint($height);
$log->add('image_height', 'Height: ' . ($height === 0 ? '0' : $height));
}
// The only purpose of this is to determine the final width and height
// without performing any actual image manipulation. This will be used
// to check whether a resize was done previously.
if ((!empty($width) || !empty($height)) && $crop_only === FALSE) {
switch ($crop_mode) {
case 0:
$dims = image_resize_dimensions($orig_w, $orig_h, empty($width) ? NULL : $width, empty($height) ? NULL : $height, FALSE);
$dst_w = $dims[4];
$dst_h = $dims[5];
break;
case 1:
$dims = image_resize_dimensions($orig_w, $orig_h, empty($width) ? NULL : $width, empty($height) ? NULL : $height, is_array($crop_focus) ? $crop_focus : TRUE);
$dst_w = $dims[4];
$dst_h = $dims[5];
break;
case 2:
$canvas_w = $width;
$canvas_h = $height;
// generate new w/h if not provided
if ($width && !$height) {
$height = floor($orig_h * ($width / $orig_w));
$canvas_h = $height;
} else {
if ($height && !$width) {
$width = floor($orig_w * ($height / $orig_h));
$canvas_w = $width;
}
}
$final_height = $orig_h * ($width / $orig_w);
if ($final_height > $height) {
$origin_x = $width / 2;
$width = $orig_w * ($height / $orig_h);
$origin_x = round($origin_x - $width / 2);
} else {
$origin_y = $height / 2;
$height = $final_height;
$origin_y = round($origin_y - $height / 2);
}
$dst_w = $canvas_w;
$dst_h = $canvas_h;
break;
case 3:
// generate new w/h if not provided
if ($width && !$height) {
$height = floor($orig_h * ($width / $orig_w));
} else {
if ($height && !$width) {
$width = floor($orig_w * ($height / $orig_h));
}
}
$final_height = $orig_h * ($width / $orig_w);
if ($final_height > $height) {
$width = $orig_w * ($height / $orig_h);
} else {
$height = $final_height;
}
$dims = image_resize_dimensions($orig_w, $orig_h, empty($width) ? NULL : $width, empty($height) ? NULL : $height, FALSE);
$dst_w = $dims[4];
$dst_h = $dims[5];
break;
}
$log->add('image_resize_width', 'Resize width: ' . ($dst_w === 0 ? '0' : $dst_w));
$log->add('image_resize_height', 'Resize height: ' . ($dst_h === 0 ? '0' : $dst_h));
// Do not resize, only a crop in the image.
} elseif ($crop_only === TRUE) {
// get x position to start cropping
$src_x = isset($crop_x) ? $crop_x : 0;
// get y position to start cropping
$src_y = isset($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) ((double) str_replace('%', '', $dst_w) / 100 * $orig_w);
}
}
if (isset($dst_h)) {
if (stripos($dst_h, '%') !== FALSE) {
$dst_h = (int) ((double) 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) ((double) str_replace('%', '', $width) / 100 * $orig_w);
}
if (stripos($src_y, '%') !== FALSE) {
$src_y = (int) ((double) 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 hash for the saved file.
// This to check whether we need to create a new file or use an existing file.
$hash = (string) $image_info['modified'] . (empty($width) ? str_pad((string) $width, 5, '0', STR_PAD_LEFT) : '00000') . (empty($height) ? str_pad((string) $height, 5, '0', STR_PAD_LEFT) : '00000') . ($negate ? '1' : '0') . ($grayscale ? '1' : '0') . (isset($brightness) ? str_pad((string) ((int) $brightness >= 0 ? '1' . (string) $brightness : str_replace('-', '0', (string) $brightness)), 4, '0', STR_PAD_LEFT) : '0000') . (isset($colorize) ? str_pad(preg_replace('#^\\##', '', $colorize), 8, '0', STR_PAD_LEFT) : '00000000') . (isset($contrast) ? str_pad((string) ((int) $contrast >= 0 ? '1' . (string) $contrast : str_replace('-', '0', (string) $contrast)), 4, '0', STR_PAD_LEFT) : '0000') . ($detect_edges ? '1' : '0') . ($emboss ? '1' : '0') . ($gaussian_blur ? '1' : '0') . ($blur ? '1' : '0') . ($sketchy ? '1' : '0') . ($sharpen ? '1' : '0') . (isset($smooth) ? str_pad((string) ((double) $smooth >= 0 ? '1' . (string) $smooth : str_replace('-', '0', (string) $smooth)), 4, '0', STR_PAD_LEFT) : '0000') . str_pad((string) $opacity, 3, '0', STR_PAD_LEFT) . ($crop_focus ? is_array($crop_focus) ? str_replace('.', '', join('', $crop_focus)) : '1' : '0') . $crop_mode . ($crop_only ? '1' : '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') . str_pad(preg_replace('#^\\##', '', $canvas_color), 8, '0', STR_PAD_LEFT) . str_pad((string) $quality, 3, '0', STR_PAD_LEFT);
$log->add('image_file_hash', 'Hash: ' . $hash);
// Hash the filename suffix.
$suffix = md5($hash);
$log->add('image_base_name_suffix', 'Base filename suffix: ' . $suffix);
// Use this to check if cropped image already exists, so we can return that instead.
$dst_rel_path = str_replace('.' . $ext, '', $image_info['basename']);
// Set file ext to `png` if the opacity has been set less than 100 or if the crop mode is `2` and the canvas color was set to transparent.
if ($opacity < 100 || $canvas_color === 'transparent' && $crop_mode == 2) {
$ext = 'png';
}
// Create the upload subdirectory, this is where the generated images are saved.
$upload_dir = is_string($atts['sub_dir']) && !empty($atts['sub_dir']) ? trailingslashit(CN_IMAGE_PATH . $atts['sub_dir']) : CN_IMAGE_PATH;
$upload_url = is_string($atts['sub_dir']) && !empty($atts['sub_dir']) ? trailingslashit(CN_IMAGE_BASE_URL . $atts['sub_dir']) : CN_IMAGE_BASE_URL;
cnFileSystem::mkdir($upload_dir);
// Destination paths and URL.
$destfilename = "{$upload_dir}{$dst_rel_path}-{$suffix}." . strtolower($ext);
$img_url = "{$upload_url}{$dst_rel_path}-{$suffix}." . strtolower($ext);
// If file exists, just return it.
if (@file_exists($destfilename) && ($image_info = getimagesize($destfilename))) {
$mime_type = $image_info['mime'];
$log->add('image_serve_from_cache', 'Image found in cache, no processing required.');
$editor = wp_get_image_editor($destfilename);
// If there is an error, return WP_Error object.
if (is_wp_error($editor)) {
return $editor;
}
$log->add('image_editor_engine', __(sprintf('Image processing parent class is %s', get_parent_class($editor)), 'connections'));
$log->add('image_editor_engine', __(sprintf('Image processing class is %s', get_class($editor)), 'connections'));
} else {
// Setup the $methods var to be passed to wp_get_image_editor()
// so the correct image editor engine can be chosen for processing the image.
if ($negate) {
$methods['methods'][] = 'negate';
}
if ($grayscale) {
$methods['methods'][] = 'grayscale';
}
if (isset($brightness)) {
$methods['methods'][] = 'brightness';
}
if (isset($colorize)) {
$methods['methods'][] = 'colorize';
}
if (isset($contrast)) {
$methods['methods'][] = 'contrast';
}
if ($detect_edges) {
$methods['methods'][] = 'detect_edges';
}
if ($emboss) {
$methods['methods'][] = 'emboss';
}
if ($gaussian_blur) {
$methods['methods'][] = 'gaussian_blur';
}
if ($blur) {
$methods['methods'][] = 'blur';
}
if ($sketchy) {
$methods['methods'][] = 'sketchy';
}
if ($sharpen) {
$methods['methods'][] = 'sharpen';
}
if (isset($smooth)) {
$methods['methods'][] = 'smooth';
}
if (isset($opacity)) {
$methods['methods'][] = 'opacity';
}
if ($crop_focus) {
$methods['methods'][] = 'crop';
}
if ($crop_mode == 2) {
$methods['methods'][] = 'resize_padded';
}
if ($crop_only) {
$methods['methods'][] = 'resize';
}
$methods['methods'][] = 'set_quality';
// Perform resizing and other filters.
/** @var CN_Image_Editor_GD $editor */
$editor = wp_get_image_editor($image_info['path'], $methods);
// If there is an error, return WP_Error object.
if (is_wp_error($editor)) {
return $editor;
}
$log->add('image_editor_engine', __(sprintf('Image processing parent class is %s', get_parent_class($editor)), 'connections'));
$log->add('image_editor_engine', __(sprintf('Image processing class is %s', get_class($editor)), 'connections'));
/*
* Perform image manipulations.
*/
if ($crop_only === FALSE) {
if (!empty($width) && $width || !empty($height) && $height) {
switch ($crop_mode) {
case 0:
if (is_wp_error($result = $editor->resize(empty($width) ? NULL : $width, empty($height) ? NULL : $height, FALSE))) {
return $result;
}
$log->add('image_resized', __('Image successfully resized to fit new width and height without maintaining proportion.', 'connections'));
break;
case 1:
if (is_wp_error($result = $editor->resize(empty($width) ? NULL : $width, empty($height) ? NULL : $height, is_array($crop_focus) ? $crop_focus : TRUE))) {
return $result;
}
if (is_bool($crop_focus)) {
$log->add('image_resized', __('Image successfully resized with cropping.', 'connections'));
} elseif (is_array($crop_focus)) {
$log->add('image_resized', __(sprintf('Image successfully resized with cropping from origin %s,%s.', $crop_focus[0], $crop_focus[1]), 'connections'));
}
break;
case 2:
if (is_wp_error($result = $editor->resize_padded($canvas_w, $canvas_h, $canvas_color, empty($width) ? NULL : $width, empty($height) ? NULL : $height, $orig_w, $orig_h, empty($origin_x) ? 0 : $origin_x, empty($origin_y) ? 0 : $origin_y))) {
return $result;
}
$log->add('image_resized', __('Image successfully resized proportionally with padding.', 'connections'));
break;
case 3:
if (is_wp_error($result = $editor->resize(empty($width) ? NULL : $width, empty($height) ? NULL : $height, FALSE))) {
return $result;
}
$log->add('image_resized', __('Image successfully resized proportionally with no padding.', 'connections'));
break;
}
}
} else {
if (is_wp_error($result = $editor->crop($src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h))) {
return $result;
}
}
if ($negate) {
if (is_wp_error($result = $editor->negate())) {
return $result;
}
$log->add('image_filter_negate', __('Negate filter applied.', 'connections'));
}
if ($grayscale) {
if (is_wp_error($result = $editor->grayscale())) {
return $result;
}
$log->add('image_filter_grayscale', __('Grayscale filter applied.', 'connections'));
}
if (isset($brightness)) {
if (is_wp_error($result = $editor->brightness($brightness))) {
return $result;
}
$log->add('image_filter_brightnes', __(sprintf('Brightness level %s applied.', $brightness), 'connections'));
}
if (isset($contrast)) {
if (is_wp_error($result = $editor->contrast($contrast))) {
return $result;
}
$log->add('image_filter_contrast', __(sprintf('Contrast level %s applied.', $contrast), 'connections'));
}
if (isset($colorize)) {
if (is_wp_error($result = $editor->colorize($colorize))) {
return $result;
}
$log->add('image_filter_colorize', __(sprintf('Colorized using %s.', $colorize), 'connections'));
}
if ($detect_edges) {
if (is_wp_error($result = $editor->detect_edges())) {
return $result;
}
$log->add('image_filter_edge_detect', __('Edge Detect filter applied.', 'connections'));
}
if ($emboss) {
if (is_wp_error($result = $editor->emboss())) {
return $result;
}
$log->add('image_filter_emboss', __('Emboss filter applied.', 'connections'));
}
if ($gaussian_blur) {
if (is_wp_error($result = $editor->gaussian_blur())) {
return $result;
}
$log->add('image_filter_gaussian_blur', __('Gaussian Blur filter applied.', 'connections'));
}
if ($blur) {
if (is_wp_error($result = $editor->blur())) {
return $result;
}
$log->add('image_filter_blur', __('Blur filter applied.', 'connections'));
}
if ($sketchy) {
if (is_wp_error($result = $editor->sketchy())) {
return $result;
}
$log->add('image_filter_sketchy', __('Sketchy filter applied.', 'connections'));
}
if ($sharpen) {
if (is_wp_error($result = $editor->sharpen($sharpen))) {
return $result;
}
$log->add('image_filter_sharpen', __('Sharpen filter applied.', 'connections'));
}
if (isset($smooth)) {
if (is_wp_error($result = $editor->smooth($smooth))) {
return $result;
}
$log->add('image_filter_smooth', __(sprintf('Smooth filter applied with level %s.', $smooth), 'connections'));
}
if ($opacity < 100) {
if (is_wp_error($result = $editor->opacity($opacity))) {
return $result;
}
}
$log->add('image_filter_opacity', __(sprintf('Opacity set at %d.', $opacity), 'connections'));
// Set image save quality.
$editor->set_quality($quality);
$log->add('image_save_quality', __(sprintf('Saving quality set at %s.', $editor->get_quality()), 'connections'));
// Save the new image, set file type to PNG if the opacity has been set less than 100 or if the crop mode is `2` and the canvas color was set to transparent.
if ($opacity < 100 || $canvas_color === 'transparent' && $crop_mode == 2 || $orig_mime_type == 'image/png') {
$mime_type = 'image/png';
} elseif ($orig_mime_type == 'image/jpeg') {
$mime_type = 'image/jpeg';
} elseif ($orig_mime_type == 'image/gif') {
$mime_type = 'image/gif';
}
$log->add('image_save_mime_type', __(sprintf('Saving file as %s.', $mime_type), 'connections'));
$log->add('image_save_file_path', __(sprintf('Saving file in path: %s', $destfilename), 'connections'));
$resized_file = $editor->save($destfilename, $mime_type);
$log->add('image_save', __('File saved successfully.', 'connections'));
}
$log->add('image_cache_url', __(sprintf('Cache URL: %s', $img_url), 'connections'));
/*
* Remove the cnImage filters.
*/
remove_filter('wp_image_editors', array(__CLASS__, 'imageEditors'));
remove_filter('image_resize_dimensions', array(__CLASS__, 'resize_dimensions'), 10);
/*
* Be a good citizen and add the filters that were hooked back to image editor filters.
*/
if (!empty($filter['editors'])) {
$wp_filter['wp_image_editors'] = $filter['editors'];
}
if (!empty($filter['resize'])) {
$wp_filter['image_resize_dimensions'] = $filter['resize'];
}
switch ($return) {
case 'base64':
$image = 'data:image/' . (isset($mime_type) ? $mime_type : $orig_mime_type) . ';base64,' . base64_encode(file_get_contents($destfilename));
break;
case 'data':
$image = array('name' => "{$dst_rel_path}-{$suffix}.{$ext}", 'path' => $destfilename, 'url' => $img_url, 'width' => isset($dst_w) ? $dst_w : $orig_w, 'height' => isset($dst_h) ? $dst_h : $orig_h, 'size' => 'height="' . (isset($dst_h) ? $dst_h : $orig_h) . '" width="' . (isset($dst_w) ? $dst_w : $orig_w) . '"', 'mime' => isset($mime_type) ? $mime_type : $orig_mime_type, 'type' => $image_info[2], 'log' => defined('WP_DEBUG') && WP_DEBUG === TRUE ? $log : __('WP_DEBUG is not defined or set to FALSE, set to TRUE to enable image processing log.', 'connections'));
break;
case 'editor':
$image = $editor;
break;
case 'stream':
$image = $editor->stream();
break;
default:
$image = $img_url;
break;
}
return $image;
}
/**
* Tints the image a different color
*
* @access public
* @since 8.1
*
* @param string $hexColor color e.g. #ff00ff
* @return boolean|WP_Error
*/
public function colorize($hexColor)
{
$hexColor = cnSanitize::hexColor($hexColor);
if (empty($hexColor)) {
return new WP_Error('image_colorize_error', __('Value passed to ' . get_class($this) . '::colorize() is an invalid hex color.', 'connections'), $this->file);
}
if (function_exists('imagefilter') && function_exists('imagesavealpha') && function_exists('imagealphablending')) {
$hexColor = preg_replace('#^\\##', '', $hexColor);
$r = hexdec(substr($hexColor, 0, 2));
$g = hexdec(substr($hexColor, 2, 2));
$b = hexdec(substr($hexColor, 2, 2));
imagealphablending($this->image, FALSE);
if (imagefilter($this->image, IMG_FILTER_COLORIZE, $r, $g, $b, 0)) {
imagesavealpha($this->image, TRUE);
return TRUE;
}
}
return new WP_Error('image_colorize_error', __('Image color change failed.', 'connections'), $this->file);
}
/**
* Tints the image a different color
*
* @access public
* @since 8.1
*
* @param string $hexColor hex color e.g. #ff00ff
* @return boolean|WP_Error
*/
public function colorize($hexColor)
{
$hexColor = cnSanitize::hexColor($hexColor);
if (empty($hexColor)) {
return new WP_Error('image_colorize_error', __('Value passed to ' . get_class($this) . '::colorize() is an invalid hex color.', 'connections'), $this->file);
}
try {
// When you're using an image with an alpha channel (for example a transparent png), a value of 1.0 will return a completely transparent image,
// but a value of 1 works just fine.
// ref: http://php.net/manual/en/imagick.colorizeimage.php#107012
return $this->image->colorizeImage($hexColor, 1);
} catch (Exception $e) {
return new WP_Error('image_colorize_error', $e->getMessage(), $this->file);
}
}