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/home/tahkoom/public_html/wp-includes/class-wp-image-editor-gd.php
<?php
/**
* WordPress GD Image Editor
*
* @package WordPress
* @subpackage Image_Editor
*/
/**
* WordPress Image Editor Class for Image Manipulation through GD
*
* @since 3.5.0
*
* @see WP_Image_Editor
*/
class WP_Image_Editor_GD extends WP_Image_Editor {
/**
* GD Resource.
*
* @var resource|GdImage
*/
protected $image;
public function __destruct() {
if ( $this->image ) {
// We don't need the original in memory anymore.
imagedestroy( $this->image );
}
}
/**
* Checks to see if current environment supports GD.
*
* @since 3.5.0
*
* @param array $args
* @return bool
*/
public static function test( $args = array() ) {
if ( ! extension_loaded( 'gd' ) || ! function_exists( 'gd_info' ) ) {
return false;
}
// On some setups GD library does not provide imagerotate() - Ticket #11536.
if ( isset( $args['methods'] ) &&
in_array( 'rotate', $args['methods'], true ) &&
! function_exists( 'imagerotate' ) ) {
return false;
}
return true;
}
/**
* Checks to see if editor supports the mime-type specified.
*
* @since 3.5.0
*
* @param string $mime_type
* @return bool
*/
public static function supports_mime_type( $mime_type ) {
$image_types = imagetypes();
switch ( $mime_type ) {
case 'image/jpeg':
return ( $image_types & IMG_JPG ) !== 0;
case 'image/png':
return ( $image_types & IMG_PNG ) !== 0;
case 'image/gif':
return ( $image_types & IMG_GIF ) !== 0;
case 'image/webp':
return ( $image_types & IMG_WEBP ) !== 0;
case 'image/avif':
return ( $image_types & IMG_AVIF ) !== 0 && function_exists( 'imageavif' );
}
return false;
}
/**
* Loads image from $this->file into new GD Resource.
*
* @since 3.5.0
*
* @return true|WP_Error True if loaded successfully; WP_Error on failure.
*/
public function load() {
if ( $this->image ) {
return true;
}
if ( ! is_file( $this->file ) && ! preg_match( '|^https?://|', $this->file ) ) {
return new WP_Error( 'error_loading_image', __( 'File does not exist?' ), $this->file );
}
// Set artificially high because GD uses uncompressed images in memory.
wp_raise_memory_limit( 'image' );
$file_contents = @file_get_contents( $this->file );
if ( ! $file_contents ) {
return new WP_Error( 'error_loading_image', __( 'File does not exist?' ), $this->file );
}
// Handle WebP and AVIF mime types explicitly, falling back to imagecreatefromstring.
if (
function_exists( 'imagecreatefromwebp' ) && ( 'image/webp' === wp_get_image_mime( $this->file ) )
) {
$this->image = @imagecreatefromwebp( $this->file );
} elseif (
function_exists( 'imagecreatefromavif' ) && ( 'image/avif' === wp_get_image_mime( $this->file ) )
) {
$this->image = @imagecreatefromavif( $this->file );
} else {
$this->image = @imagecreatefromstring( $file_contents );
}
if ( ! is_gd_image( $this->image ) ) {
return new WP_Error( 'invalid_image', __( 'File is not an image.' ), $this->file );
}
$size = wp_getimagesize( $this->file );
if ( ! $size ) {
return new WP_Error( 'invalid_image', __( 'Could not read image size.' ), $this->file );
}
if ( function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' ) ) {
imagealphablending( $this->image, false );
imagesavealpha( $this->image, true );
}
$this->update_size( $size[0], $size[1] );
$this->mime_type = $size['mime'];
return $this->set_quality();
}
/**
* Sets or updates current image size.
*
* @since 3.5.0
*
* @param int $width
* @param int $height
* @return true
*/
protected function update_size( $width = false, $height = false ) {
if ( ! $width ) {
$width = imagesx( $this->image );
}
if ( ! $height ) {
$height = imagesy( $this->image );
}
return parent::update_size( $width, $height );
}
/**
* Resizes current image.
*
* Wraps `::_resize()` which returns a GD resource or GdImage instance.
*
* At minimum, either a height or width must be provided. If one of the two is set
* to null, the resize will maintain aspect ratio according to the provided dimension.
*
* @since 3.5.0
*
* @param int|null $max_w Image width.
* @param int|null $max_h Image height.
* @param bool|array $crop {
* Optional. Image cropping behavior. If false, the image will be scaled (default).
* If true, image will be cropped to the specified dimensions using center positions.
* If an array, the image will be cropped using the array to specify the crop location:
*
* @type string $0 The x crop position. Accepts 'left', 'center', or 'right'.
* @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
* }
* @return true|WP_Error
*/
public function resize( $max_w, $max_h, $crop = false ) {
if ( ( $this->size['width'] === $max_w ) && ( $this->size['height'] === $max_h ) ) {
return true;
}
$resized = $this->_resize( $max_w, $max_h, $crop );
if ( is_gd_image( $resized ) ) {
imagedestroy( $this->image );
$this->image = $resized;
return true;
} elseif ( is_wp_error( $resized ) ) {
return $resized;
}
return new WP_Error( 'image_resize_error', __( 'Image resize failed.' ), $this->file );
}
/**
* @param int $max_w
* @param int $max_h
* @param bool|array $crop {
* Optional. Image cropping behavior. If false, the image will be scaled (default).
* If true, image will be cropped to the specified dimensions using center positions.
* If an array, the image will be cropped using the array to specify the crop location:
*
* @type string $0 The x crop position. Accepts 'left', 'center', or 'right'.
* @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
* }
* @return resource|GdImage|WP_Error
*/
protected function _resize( $max_w, $max_h, $crop = false ) {
$dims = image_resize_dimensions( $this->size['width'], $this->size['height'], $max_w, $max_h, $crop );
if ( ! $dims ) {
return new WP_Error( 'error_getting_dimensions', __( 'Could not calculate resized image dimensions' ), $this->file );
}
list( $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h ) = $dims;
$this->set_quality(
null,
array(
'width' => $dst_w,
'height' => $dst_h,
)
);
$resized = wp_imagecreatetruecolor( $dst_w, $dst_h );
imagecopyresampled( $resized, $this->image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h );
if ( is_gd_image( $resized ) ) {
$this->update_size( $dst_w, $dst_h );
return $resized;
}
return new WP_Error( 'image_resize_error', __( 'Image resize failed.' ), $this->file );
}
/**
* Create multiple smaller images from a single source.
*
* Attempts to create all sub-sizes and returns the meta data at the end. This
* may result in the server running out of resources. When it fails there may be few
* "orphaned" images left over as the meta data is never returned and saved.
*
* As of 5.3.0 the preferred way to do this is with `make_subsize()`. It creates
* the new images one at a time and allows for the meta data to be saved after
* each new image is created.
*
* @since 3.5.0
*
* @param array $sizes {
* An array of image size data arrays.
*
* Either a height or width must be provided.
* If one of the two is set to null, the resize will
* maintain aspect ratio according to the source image.
*
* @type array ...$0 {
* Array of height, width values, and whether to crop.
*
* @type int $width Image width. Optional if `$height` is specified.
* @type int $height Image height. Optional if `$width` is specified.
* @type bool|array $crop Optional. Whether to crop the image. Default false.
* }
* }
* @return array An array of resized images' metadata by size.
*/
public function multi_resize( $sizes ) {
$metadata = array();
foreach ( $sizes as $size => $size_data ) {
$meta = $this->make_subsize( $size_data );
if ( ! is_wp_error( $meta ) ) {
$metadata[ $size ] = $meta;
}
}
return $metadata;
}
/**
* Create an image sub-size and return the image meta data value for it.
*
* @since 5.3.0
*
* @param array $size_data {
* Array of size data.
*
* @type int $width The maximum width in pixels.
* @type int $height The maximum height in pixels.
* @type bool|array $crop Whether to crop the image to exact dimensions.
* }
* @return array|WP_Error The image data array for inclusion in the `sizes` array in the image meta,
* WP_Error object on error.
*/
public function make_subsize( $size_data ) {
if ( ! isset( $size_data['width'] ) && ! isset( $size_data['height'] ) ) {
return new WP_Error( 'image_subsize_create_error', __( 'Cannot resize the image. Both width and height are not set.' ) );
}
$orig_size = $this->size;
if ( ! isset( $size_data['width'] ) ) {
$size_data['width'] = null;
}
if ( ! isset( $size_data['height'] ) ) {
$size_data['height'] = null;
}
if ( ! isset( $size_data['crop'] ) ) {
$size_data['crop'] = false;
}
$resized = $this->_resize( $size_data['width'], $size_data['height'], $size_data['crop'] );
if ( is_wp_error( $resized ) ) {
$saved = $resized;
} else {
$saved = $this->_save( $resized );
imagedestroy( $resized );
}
$this->size = $orig_size;
if ( ! is_wp_error( $saved ) ) {
unset( $saved['path'] );
}
return $saved;
}
/**
* Crops Image.
*
* @since 3.5.0
*
* @param int $src_x The start x position to crop from.
* @param int $src_y The start y position to crop from.
* @param int $src_w The width to crop.
* @param int $src_h The height to crop.
* @param int $dst_w Optional. The destination width.
* @param int $dst_h Optional. The destination height.
* @param bool $src_abs Optional. If the source crop points are absolute.
* @return true|WP_Error
*/
public function crop( $src_x, $src_y, $src_w, $src_h, $dst_w = null, $dst_h = null, $src_abs = false ) {
/*
* If destination width/height isn't specified,
* use same as width/height from source.
*/
if ( ! $dst_w ) {
$dst_w = $src_w;
}
if ( ! $dst_h ) {
$dst_h = $src_h;
}
foreach ( array( $src_w, $src_h, $dst_w, $dst_h ) as $value ) {
if ( ! is_numeric( $value ) || (int) $value <= 0 ) {
return new WP_Error( 'image_crop_error', __( 'Image crop failed.' ), $this->file );
}
}
$dst = wp_imagecreatetruecolor( (int) $dst_w, (int) $dst_h );
if ( $src_abs ) {
$src_w -= $src_x;
$src_h -= $src_y;
}
if ( function_exists( 'imageantialias' ) ) {
imageantialias( $dst, true );
}
imagecopyresampled( $dst, $this->image, 0, 0, (int) $src_x, (int) $src_y, (int) $dst_w, (int) $dst_h, (int) $src_w, (int) $src_h );
if ( is_gd_image( $dst ) ) {
imagedestroy( $this->image );
$this->image = $dst;
$this->update_size();
return true;
}
return new WP_Error( 'image_crop_error', __( 'Image crop failed.' ), $this->file );
}
/**
* Rotates current image counter-clockwise by $angle.
* Ported from image-edit.php
*
* @since 3.5.0
*
* @param float $angle
* @return true|WP_Error
*/
public function rotate( $angle ) {
if ( function_exists( 'imagerotate' ) ) {
$transparency = imagecolorallocatealpha( $this->image, 255, 255, 255, 127 );
$rotated = imagerotate( $this->image, $angle, $transparency );
if ( is_gd_image( $rotated ) ) {
imagealphablending( $rotated, true );
imagesavealpha( $rotated, true );
imagedestroy( $this->image );
$this->image = $rotated;
$this->update_size();
return true;
}
}
return new WP_Error( 'image_rotate_error', __( 'Image rotate failed.' ), $this->file );
}
/**
* Flips current image.
*
* @since 3.5.0
*
* @param bool $horz Flip along Horizontal Axis.
* @param bool $vert Flip along Vertical Axis.
* @return true|WP_Error
*/
public function flip( $horz, $vert ) {
$w = $this->size['width'];
$h = $this->size['height'];
$dst = wp_imagecreatetruecolor( $w, $h );
if ( is_gd_image( $dst ) ) {
$sx = $vert ? ( $w - 1 ) : 0;
$sy = $horz ? ( $h - 1 ) : 0;
$sw = $vert ? -$w : $w;
$sh = $horz ? -$h : $h;
if ( imagecopyresampled( $dst, $this->image, 0, 0, $sx, $sy, $w, $h, $sw, $sh ) ) {
imagedestroy( $this->image );
$this->image = $dst;
return true;
}
}
return new WP_Error( 'image_flip_error', __( 'Image flip failed.' ), $this->file );
}
/**
* Saves current in-memory image to file.
*
* @since 3.5.0
* @since 5.9.0 Renamed `$filename` to `$destfilename` to match parent class
* for PHP 8 named parameter support.
* @since 6.0.0 The `$filesize` value was added to the returned array.
*
* @param string|null $destfilename Optional. Destination filename. Default null.
* @param string|null $mime_type Optional. The mime-type. Default null.
* @return array|WP_Error {
* Array on success or WP_Error if the file failed to save.
*
* @type string $path Path to the image file.
* @type string $file Name of the image file.
* @type int $width Image width.
* @type int $height Image height.
* @type string $mime-type The mime type of the image.
* @type int $filesize File size of the image.
* }
*/
public function save( $destfilename = null, $mime_type = null ) {
$saved = $this->_save( $this->image, $destfilename, $mime_type );
if ( ! is_wp_error( $saved ) ) {
$this->file = $saved['path'];
$this->mime_type = $saved['mime-type'];
}
return $saved;
}
/**
* @since 3.5.0
* @since 6.0.0 The `$filesize` value was added to the returned array.
*
* @param resource|GdImage $image
* @param string|null $filename
* @param string|null $mime_type
* @return array|WP_Error {
* Array on success or WP_Error if the file failed to save.
*
* @type string $path Path to the image file.
* @type string $file Name of the image file.
* @type int $width Image width.
* @type int $height Image height.
* @type string $mime-type The mime type of the image.
* @type int $filesize File size of the image.
* }
*/
protected function _save( $image, $filename = null, $mime_type = null ) {
list( $filename, $extension, $mime_type ) = $this->get_output_format( $filename, $mime_type );
if ( ! $filename ) {
$filename = $this->generate_filename( null, null, $extension );
}
if ( function_exists( 'imageinterlace' ) ) {
/**
* Filters whether to output progressive images (if available).
*
* @since 6.5.0
*
* @param bool $interlace Whether to use progressive images for output if available. Default false.
* @param string $mime_type The mime type being saved.
*/
imageinterlace( $image, apply_filters( 'image_save_progressive', false, $mime_type ) );
}
if ( 'image/gif' === $mime_type ) {
if ( ! $this->make_image( $filename, 'imagegif', array( $image, $filename ) ) ) {
return new WP_Error( 'image_save_error', __( 'Image Editor Save Failed' ) );
}
} elseif ( 'image/png' === $mime_type ) {
// Convert from full colors to index colors, like original PNG.
if ( function_exists( 'imageistruecolor' ) && ! imageistruecolor( $image ) ) {
imagetruecolortopalette( $image, false, imagecolorstotal( $image ) );
}
if ( ! $this->make_image( $filename, 'imagepng', array( $image, $filename ) ) ) {
return new WP_Error( 'image_save_error', __( 'Image Editor Save Failed' ) );
}
} elseif ( 'image/jpeg' === $mime_type ) {
if ( ! $this->make_image( $filename, 'imagejpeg', array( $image, $filename, $this->get_quality() ) ) ) {
return new WP_Error( 'image_save_error', __( 'Image Editor Save Failed' ) );
}
} elseif ( 'image/webp' === $mime_type ) {
if ( ! function_exists( 'imagewebp' )
|| ! $this->make_image( $filename, 'imagewebp', array( $image, $filename, $this->get_quality() ) )
) {
return new WP_Error( 'image_save_error', __( 'Image Editor Save Failed' ) );
}
} elseif ( 'image/avif' === $mime_type ) {
if ( ! function_exists( 'imageavif' )
|| ! $this->make_image( $filename, 'imageavif', array( $image, $filename, $this->get_quality() ) )
) {
return new WP_Error( 'image_save_error', __( 'Image Editor Save Failed' ) );
}
} else {
return new WP_Error( 'image_save_error', __( 'Image Editor Save Failed' ) );
}
// Set correct file permissions.
$stat = stat( dirname( $filename ) );
$perms = $stat['mode'] & 0000666; // Same permissions as parent folder, strip off the executable bits.
chmod( $filename, $perms );
return array(
'path' => $filename,
/**
* Filters the name of the saved image file.
*
* @since 2.6.0
*
* @param string $filename Name of the file.
*/
'file' => wp_basename( apply_filters( 'image_make_intermediate_size', $filename ) ),
'width' => $this->size['width'],
'height' => $this->size['height'],
'mime-type' => $mime_type,
'filesize' => wp_filesize( $filename ),
);
}
/**
* Sets Image Compression quality on a 1-100% scale. Handles WebP lossless images.
*
* @since 6.7.0
* @since 6.8.0 The `$dims` parameter was added.
*
* @param int $quality Compression Quality. Range: [1,100]
* @param array $dims Optional. Image dimensions array with 'width' and 'height' keys.
* @return true|WP_Error True if set successfully; WP_Error on failure.
*/
public function set_quality( $quality = null, $dims = array() ) {
$quality_result = parent::set_quality( $quality, $dims );
if ( is_wp_error( $quality_result ) ) {
return $quality_result;
} else {
$quality = $this->get_quality();
}
// Handle setting the quality for WebP lossless images, see https://php.watch/versions/8.1/gd-webp-lossless.
try {
if ( 'image/webp' === $this->mime_type && defined( 'IMG_WEBP_LOSSLESS' ) ) {
$webp_info = wp_get_webp_info( $this->file );
if ( ! empty( $webp_info['type'] ) && 'lossless' === $webp_info['type'] ) {
$quality = IMG_WEBP_LOSSLESS;
parent::set_quality( $quality, $dims );
}
}
} catch ( Exception $e ) {
return new WP_Error( 'image_quality_error', $e->getMessage() );
}
$this->quality = $quality;
return true;
}
/**
* Returns stream of current image.
*
* @since 3.5.0
*
* @param string $mime_type The mime type of the image.
* @return bool True on success, false on failure.
*/
public function stream( $mime_type = null ) {
list( $filename, $extension, $mime_type ) = $this->get_output_format( null, $mime_type );
switch ( $mime_type ) {
case 'image/png':
header( 'Content-Type: image/png' );
return imagepng( $this->image );
case 'image/gif':
header( 'Content-Type: image/gif' );
return imagegif( $this->image );
case 'image/webp':
if ( function_exists( 'imagewebp' ) ) {
header( 'Content-Type: image/webp' );
return imagewebp( $this->image, null, $this->get_quality() );
} else {
// Fall back to JPEG.
header( 'Content-Type: image/jpeg' );
return imagejpeg( $this->image, null, $this->get_quality() );
}
case 'image/avif':
if ( function_exists( 'imageavif' ) ) {
header( 'Content-Type: image/avif' );
return imageavif( $this->image, null, $this->get_quality() );
}
// Fall back to JPEG.
default:
header( 'Content-Type: image/jpeg' );
return imagejpeg( $this->image, null, $this->get_quality() );
}
}
/**
* Either calls editor's save function or handles file as a stream.
*
* @since 3.5.0
*
* @param string $filename
* @param callable $callback
* @param array $arguments
* @return bool
*/
protected function make_image( $filename, $callback, $arguments ) {
if ( wp_is_stream( $filename ) ) {
$arguments[1] = null;
}
return parent::make_image( $filename, $callback, $arguments );
}
}
من يقود مستقبل الذكاء الاصطناعي ChatGPT أم Deep Seek – tahkoom.com
كتبت شروق عارف
Deep Seek منافس قوي لكنه ما زال تحت التجربة
Deep Seek ينافس بقوة و لكن ChatGPTيتفوق في الأداء
ولكن يبقى الرهان الحقيقي بين عمالقة الذكاء الاصطناعي على من يستطيع تلبية احتياجات المستخدمين بذكاء وأمان وأفضل الإمكانيات في ان واحد
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