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<?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
	 */
	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
	 *
	 * @static
	 *
	 * @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'] ) &&
			 ! function_exists('imagerotate') ){

return false;
		}

return true;
	}

/**
	 * Checks to see if editor supports the mime-type specified.
	 *
	 * @since 3.5.0
	 *
	 * @static
	 *
	 * @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;
		}

return false;
	}

/**
	 * Loads image from $this->file into new GD Resource.
	 *
	 * @since 3.5.0
	 *
	 * @return bool|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 doesn&#8217;t exist?'), $this->file );

// Set artificially high because GD uses uncompressed images in memory.
		wp_raise_memory_limit( 'image' );

$this->image = @imagecreatefromstring( file_get_contents( $this->file ) );

if ( ! is_resource( $this->image ) )
			return new WP_Error( 'invalid_image', __('File is not an image.'), $this->file );

$size = @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, since _resize returns a GD Resource.
	 *
	 * 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     $crop
	 * @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_resource( $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
	 * @return resource|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;

$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_resource( $resized ) ) {
			$this->update_size( $dst_w, $dst_h );
			return $resized;
		}

return new WP_Error( 'image_resize_error', __('Image resize failed.'), $this->file );
	}

/**
	 * Resize multiple images from a single source.
	 *
	 * @since 3.5.0
	 *
	 * @param array $sizes {
	 *     An array of image size arrays. Default sizes are 'small', 'medium', 'medium_large', 'large'.
	 *
	 *     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.
	 *
	 *     @type array $size {
	 *         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 $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();
		$orig_size = $this->size;

foreach ( $sizes as $size => $size_data ) {
			if ( ! isset( $size_data['width'] ) && ! isset( $size_data['height'] ) ) {
				continue;
			}

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;
			}

$image = $this->_resize( $size_data['width'], $size_data['height'], $size_data['crop'] );
			$duplicate = ( ( $orig_size['width'] == $size_data['width'] ) && ( $orig_size['height'] == $size_data['height'] ) );

if ( ! is_wp_error( $image ) && ! $duplicate ) {
				$resized = $this->_save( $image );

imagedestroy( $image );

if ( ! is_wp_error( $resized ) && $resized ) {
					unset( $resized['path'] );
					$metadata[$size] = $resized;
				}
			}

$this->size = $orig_size;
		}

return $metadata;
	}

/**
	 * 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 bool|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;

$dst = wp_imagecreatetruecolor( $dst_w, $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, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h );

if ( is_resource( $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_resource( $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_resource( $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
	 *
	 * @param string|null $filename
	 * @param string|null $mime_type
	 * @return array|WP_Error {'path'=>string, 'file'=>string, 'width'=>int, 'height'=>int, 'mime-type'=>string}
	 */
	public function save( $filename = null, $mime_type = null ) {
		$saved = $this->_save( $this->image, $filename, $mime_type );

if ( ! is_wp_error( $saved ) ) {
			$this->file = $saved['path'];
			$this->mime_type = $saved['mime-type'];
		}

return $saved;
	}

/**
	 * @param resource $image
	 * @param string|null $filename
	 * @param string|null $mime_type
	 * @return WP_Error|array
	 */
	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 ( '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') );
		}
		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 );

/**
		 * Filters the name of the saved image file.
		 *
		 * @since 2.6.0
		 *
		 * @param string $filename Name of the file.
		 */
		return array(
			'path'      => $filename,
			'file'      => wp_basename( apply_filters( 'image_make_intermediate_size', $filename ) ),
			'width'     => $this->size['width'],
			'height'    => $this->size['height'],
			'mime-type' => $mime_type,
		);
	}

/**
	 * 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 );
			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|stream $filename
	 * @param callable $function
	 * @param array $arguments
	 * @return bool
	 */
	protected function make_image( $filename, $function, $arguments ) {
		if ( wp_is_stream( $filename ) )
			$arguments[1] = null;

return parent::make_image( $filename, $function, $arguments );
	}
}

Nama File / Folder	Size	Action
ID3	--	NONE
IXR	--	NONE
Requests	--	NONE
SimplePie	--	NONE
Text	--	NONE
certificates	--	NONE
css	--	NONE
customize	--	NONE
fonts	--	NONE
images	--	NONE
js	--	NONE
pomo	--	NONE
random_compat	--	NONE
rest-api	--	NONE
theme-compat	--	NONE
widgets	--	NONE
admin-bar.php	27.979KB	Edit File Delete File Rename
atomlib.php	11.562KB	Edit File Delete File Rename
author-template.php	15.745KB	Edit File Delete File Rename
bookmark-template.php	11.425KB	Edit File Delete File Rename
bookmark.php	13.352KB	Edit File Delete File Rename
canonical.php	26.937KB	Edit File Delete File Rename
capabilities.php	27.153KB	Edit File Delete File Rename
category-template.php	50.121KB	Edit File Delete File Rename
category.php	11.703KB	Edit File Delete File Rename
class-feed.php	0.51KB	Edit File Delete File Rename
class-http.php	35.316KB	Edit File Delete File Rename
class-phpmailer.php	143.344KB	Edit File Delete File Rename
class-pop3.php	20.429KB	Edit File Delete File Rename
class-simplepie.php	87.172KB	Edit File Delete File Rename
class-smtp.php	38.553KB	Edit File Delete File Rename
class-snoopy.php	36.899KB	Edit File Delete File Rename
class-walker-category.php	6.485KB	Edit File Delete File Rename
class-walker-nav-menu.php	8.195KB	Edit File Delete File Rename
class-walker-page-dropdown.php	2.226KB	Edit File Delete File Rename
class-walker-page.php	6.556KB	Edit File Delete File Rename
class-wp-ajax-response.php	4.906KB	Edit File Delete File Rename
class-wp-customize-nav-menus.php	52.297KB	Edit File Delete File Rename
class-wp-http-curl.php	11.405KB	Edit File Delete File Rename
class-wp-http-ixr-client.php	3.174KB	Edit File Delete File Rename
class-wp-http-requests-hooks.php	1.828KB	Edit File Delete File Rename
class-wp-http-requests-response.php	4.173KB	Edit File Delete File Rename
class-wp-http-response.php	2.804KB	Edit File Delete File Rename
class-wp-http-streams.php	14.644KB	Edit File Delete File Rename
class-wp-image-editor-gd.php	12.618KB	Edit File Delete File Rename
class-wp-locale-switcher.php	4.94KB	Edit File Delete File Rename
class-wp-locale.php	14.206KB	Edit File Delete File Rename
class-wp-post-type.php	17.809KB	Edit File Delete File Rename
class-wp-rewrite.php	57.527KB	Edit File Delete File Rename
class-wp-role.php	2.553KB	Edit File Delete File Rename
class-wp-roles.php	7.995KB	Edit File Delete File Rename
class-wp-session-tokens.php	7.166KB	Edit File Delete File Rename
class-wp-simplepie-sanitize-kses.php	1.732KB	Edit File Delete File Rename
class-wp-site.php	7.146KB	Edit File Delete File Rename
class-wp-tax-query.php	18.749KB	Edit File Delete File Rename
class-wp-taxonomy.php	9.759KB	Edit File Delete File Rename
class-wp-text-diff-renderer-table.php	14.838KB	Edit File Delete File Rename
class-wp-user-meta-session-tokens.php	2.848KB	Edit File Delete File Rename
class-wp-widget-factory.php	3.658KB	Edit File Delete File Rename
class.wp-scripts.php	13.828KB	Edit File Delete File Rename
comment-template.php	85.683KB	Edit File Delete File Rename
compat.php	15.846KB	Edit File Delete File Rename
cron.php	16.081KB	Edit File Delete File Rename
date.php	34.18KB	Edit File Delete File Rename
default-constants.php	9.338KB	Edit File Delete File Rename
default-filters.php	26.517KB	Edit File Delete File Rename
deprecated.php	110.568KB	Edit File Delete File Rename
feed-atom.php	3.018KB	Edit File Delete File Rename
feed-rdf.php	2.607KB	Edit File Delete File Rename
feed.php	19.092KB	Edit File Delete File Rename
functions.wp-scripts.php	11.212KB	Edit File Delete File Rename
general-template.php	135.77KB	Edit File Delete File Rename
http.php	21.654KB	Edit File Delete File Rename
kses.php	48.935KB	Edit File Delete File Rename
l10n.php	42.46KB	Edit File Delete File Rename
link-template.php	133.086KB	Edit File Delete File Rename
load.php	33.112KB	Edit File Delete File Rename
locale.php	0.138KB	Edit File Delete File Rename
media-template.php	45.033KB	Edit File Delete File Rename
media.php	137.07KB	Edit File Delete File Rename
meta.php	36.598KB	Edit File Delete File Rename
ms-blogs.php	38.263KB	Edit File Delete File Rename
ms-default-constants.php	4.604KB	Edit File Delete File Rename
ms-default-filters.php	4.544KB	Edit File Delete File Rename
ms-files.php	2.559KB	Edit File Delete File Rename
ms-load.php	18.797KB	Edit File Delete File Rename
ms-settings.php	3.992KB	Edit File Delete File Rename
nav-menu-template.php	20.382KB	Edit File Delete File Rename
option.php	66.156KB	Edit File Delete File Rename
post-formats.php	6.813KB	Edit File Delete File Rename
post-template.php	57.349KB	Edit File Delete File Rename
post-thumbnail-template.php	8.023KB	Edit File Delete File Rename
post.php	212.527KB	Edit File Delete File Rename
registration.php	0.174KB	Edit File Delete File Rename
revision.php	20.806KB	Edit File Delete File Rename
rewrite.php	17.092KB	Edit File Delete File Rename
rss.php	22.664KB	Edit File Delete File Rename
script-loader.php	78.28KB	Edit File Delete File Rename
session.php	0.236KB	Edit File Delete File Rename
taxonomy.php	145.88KB	Edit File Delete File Rename
theme.php	97.438KB	Edit File Delete File Rename
update.php	24.112KB	Edit File Delete File Rename
user.php	116.401KB	Edit File Delete File Rename
vars.php	5.451KB	Edit File Delete File Rename
version.php	0.604KB	Edit File Delete File Rename
wlwmanifest.xml	1.021KB	Edit File Delete File Rename
wp-db.php	97.143KB	Edit File Delete File Rename