PHP Class Ansel_Image, horde

Author: Chuck Hagenbuch ([email protected])

Author: Michael J. Rubinsky ([email protected])

Inheritance: implements Iterator

Mostrar archivo Open project: horde/horde Class Usage Examples

Public Properties

Property	Type	Description
$caption	string	Image caption
$commentCount	integer	The number of comments for this image, if available.
$facesCount	integer	Number of faces in this image
$filename	string	The filename for this image
$gallery	integer	The gallery id of this image's parent gallery
$geotag_timestamp	integer	Timestamp for when image was geotagged
$id	integer	Image Id
$lat	string	Latitude
$lng	string	Longitude
$location	string	Textual location
$originalDate	integer	Timestamp of original date.
$sort	integer	Sort count for this image
$type	string	The image's mime type
$uploaded	integer	Timestamp of uploaded datetime

Protected Properties

Property	Type	Description
$_data	array	Binary image data for loaded views
$_dirty	boolean	Dirty flag
$_exif	array	Cache the raw EXIF data locally
$_image	Horde_Image_Base	Horde_Image object for this image.
$_loaded	array	Flags for loaded views
$_tags	array	Holds an array of tags for this image

Public Methods

Method	Description
__construct ( array $image = [] ) : Ansel_Image	Const'r
addEffect ( string $type, array $params = [] )	Add an effect to the effect stack
applyEffects ( )	Apply any pending effects to the underlaying Horde_Image
createView ( string $view, Ansel_Style $style = null, $watermark = '' )	Creates and caches the given view.
crop ( integer $x1, integer $y1, integer $x2, integer $y2 )	Crop this image to desired dimensions. Crops the currently loaded view present in the Horde_Image object.
current ( ) : Ansel_Image	Return the current image from the internal iterator.
deleteCache ( string $view = 'all' )	Deletes the specified cache file.
display ( string $view = 'full', Ansel_Style $style = null )	Display the requested view.
downloadHeaders ( string $view = 'full' )	Sends the correct HTTP headers to the browser to download this image.
flip ( string $view = 'full' )	Flips the image.
geotag ( string $lat, string $lng, string $location = '' )	Update the image's geotag data. Saves to backend storage as well, so no need to call self::save()
getAttributes ( ) : array	Get the image attributes from the backend.
getDimensions ( string $view = 'full' ) : array	Returns the dimensions of the given view.
getEXIF ( boolean $replacing = false ) : boolean	Reads the EXIF data from the image, caches in the object and writes to storage. Also populates any local properties that come from the EXIF data.
getHordeImage ( ) : Horde_Image_Base	Obtain a reference to the underlying Horde_Image
getImagePageCount ( ) : integer	Get the number of pages that a multipage image contains.
getTags ( ) : array	Returns this image's tags.
getTile ( Ansel_Gallery $parent = null, Ansel_Style $style = null, boolean $mini = false, array $params = [] ) : string	Get the Ansel_View_Image_Thumb object
getType ( $view = 'full' ) : string	Get the image type for the requested view.
getVFSName ( string $view ) : string	Returns the file name of this image as used in the VFS backend.
getVFSPath ( string $view = 'full', Ansel_Style $style = null ) : string	Return the vfs path for this image.
getVFSPathFromHash ( string $hash ) : string	Generate a path on the VFS given a known style hash.
getViewHash ( string $view, Ansel_Style $style = null ) : string	Return a hash key for the given view and style.
grayscale ( string $view = 'full' )	Converts the image to grayscale.
isMultiPage ( ) : boolean	Indicates if this image represents a multipage image.
key ( ) : integer	Get the index of the internal iterator.
load ( string $view = 'full', Ansel_Style $style = null )	Loads the given view into memory.
mirror ( string $view = 'full' )	Mirrors the image.
next ( ) : mixed	Advance the iterator
raw ( string $view = 'full' ) : string	Returns the raw data for the given view.
removeTag ( string $tag )	Remove a single tag from this image's tag collection
replace ( array $imageData ) : void	Replace this image's image data.
reset ( )	Reset the image, removing all loaded views.
resize ( integer $width, integer $height, boolean $ratio = true, boolean $keepProfile = false )	Resize the current image.
rewind ( ) : void	Reset the iterator to the first image in the set.
rotate ( string $view = 'full', integer $angle = 90 )	Rotates the image.
save ( ) : integer	Save image details to storage.
setTags ( array $tags, boolean $replace = true )	Either add or replace this image's tags.
toFile ( string $view = 'full' ) : string	Wraps the given view into a file.
updateData ( string $data, string $view = 'full' )	Change the image data. Deletes old cache and writes the new data to the VFS. Used when updating an image
valid ( ) : boolean	Deterimines if the current iterator item is valid.
viewExists ( integer $id, string $view, Ansel_Style $style ) : mixed	Check if an image view exists and returns the vfs name complete with the hash directory name prepended if appropriate.
watermark ( string $view = 'full', string $watermark = null, string $halign = null, string $valign = null, string $font = null )	Watermarks the image.

Protected Methods

Method	Description
_autoRotate ( $orientation )	Autorotate based on EXIF orientation field. Updates the data in memory only.
_buildImageObject ( Horde_Image_Base $image ) : Ansel_Image	Build an Ansel_Image from a given Horde_Image.
_exifToTags ( array $fields = [] ) : void	Adds specified EXIF fields to this image's tags.
_writeData ( ) : boolean	Writes the current data to vfs, used when creating a new image

Method Details

__construct() public method

Const'r

public __construct ( array $image = [] ) : Ansel_Image
$image	array
return	Ansel_Image

_autoRotate() protected method

Autorotate based on EXIF orientation field. Updates the data in memory only.

protected _autoRotate ( $orientation )

_buildImageObject() protected method

Used to wrap iterating the Horde_Image

protected _buildImageObject ( Horde_Image_Base $image ) : Ansel_Image
$image	Horde_Image_Base	The Horde_Image
return	Ansel_Image

_exifToTags() protected method

Called during image upload/creation.

protected _exifToTags ( array $fields = [] ) : void
$fields	array	An array of EXIF fields to import as a tag.
return	void

_writeData() protected method

Writes the current data to vfs, used when creating a new image

protected _writeData ( ) : boolean
return	boolean

addEffect() public method

Add an effect to the effect stack

public addEffect ( string $type, array $params = [] )
$type	string	The effect to add.
$params	array	The effect parameters.

applyEffects() public method

Apply any pending effects to the underlaying Horde_Image

public applyEffects ( )

createView() public method

Creates and caches the given view.

public createView ( string $view, Ansel_Style $style = null, $watermark = '' )
$view	string	Which view to create.
$style	Ansel_Style	A style object

crop() public method

Crop this image to desired dimensions. Crops the currently loaded view present in the Horde_Image object.

See also: Horde_Image_Base::crop for explanation of parameters

public crop ( integer $x1, integer $y1, integer $x2, integer $y2 )
$x1	integer
$y1	integer
$x2	integer
$y2	integer

current() public method

Return the current image from the internal iterator.

public current ( ) : Ansel_Image
return	Ansel_Image

deleteCache() public method

If none is specified, deletes all of the cache files.

public deleteCache ( string $view = 'all' )
$view	string	Which cache file to delete.

display() public method

Display the requested view.

public display ( string $view = 'full', Ansel_Style $style = null )
$view	string	Which view to display.
$style	Ansel_Style	Force use of this gallery style.

downloadHeaders() public method

Sends the correct HTTP headers to the browser to download this image.

public downloadHeaders ( string $view = 'full' )
$view	string	The view to download.

flip() public method

Flips the image.

public flip ( string $view = 'full' )
$view	string	The view to work with.

geotag() public method

Update the image's geotag data. Saves to backend storage as well, so no need to call self::save()

public geotag ( string $lat, string $lng, string $location = '' )
$lat	string	Latitude
$lng	string	Longitude
$location	string	Textual location

getAttributes() public method

Get the image attributes from the backend.

public getAttributes ( ) : array
return	array	A hash of Exif fieldnames => values.

getDimensions() public method

Returns the dimensions of the given view.

public getDimensions ( string $view = 'full' ) : array
$view	string	The view (full, screen etc..) to get dimensions for
return	array	A hash of 'width and 'height' dimensions.

getEXIF() public method

Reads the EXIF data from the image, caches in the object and writes to storage. Also populates any local properties that come from the EXIF data.

public getEXIF ( boolean $replacing = false ) : boolean
$replacing	boolean	Set to true if we are replacing the exif data.
return	boolean	True if any local properties were modified, False if not.

getHordeImage() public method

Obtain a reference to the underlying Horde_Image

public getHordeImage ( ) : Horde_Image_Base
return	Horde_Image_Base

getImagePageCount() public method

Get the number of pages that a multipage image contains.

public getImagePageCount ( ) : integer
return	integer	The number of pages.

getTags() public method

Returns this image's tags.

getTile() public method

Get the Ansel_View_Image_Thumb object

public getTile ( Ansel_Gallery $parent = null, Ansel_Style $style = null, boolean $mini = false, array $params = [] ) : string
$parent	Ansel_Gallery	The parent Ansel_Gallery object.
$style	Ansel_Style	A gallery definition to use.
$mini	boolean	Force the use of a mini thumbnail?
$params	array	Any additional parameters the Ansel_Tile object may need.
return	string	HTML for this image's view tile.

getType() public method

Get the image type for the requested view.

public getType ( $view = 'full' ) : string
return	string	The requested view's mime type

getVFSName() public method

Returns the file name of this image as used in the VFS backend.

public getVFSName ( string $view ) : string
$view	string	The image view (full, screen, thumb, mini).
return	string	This image's VFS file name.

getVFSPath() public method

Return the vfs path for this image.

public getVFSPath ( string $view = 'full', Ansel_Style $style = null ) : string
$view	string	The view we want.
$style	Ansel_Style	A gallery style.
return	string	The vfs path for this image.

getVFSPathFromHash() public method

Generate a path on the VFS given a known style hash.

public getVFSPathFromHash ( string $hash ) : string
$hash	string	The sytle hash
return	string	the VFS path to the directory for the provided hash

getViewHash() public method

Return a hash key for the given view and style.

public getViewHash ( string $view, Ansel_Style $style = null ) : string
$view	string	The view (thumb, prettythumb etc...)
$style	Ansel_Style	The style.
return	string	A md5 hash suitable for use as a key.

grayscale() public method

Converts the image to grayscale.

public grayscale ( string $view = 'full' )
$view	string	The view (screen, full, etc...) to work with.

isMultiPage() public method

Indicates if this image represents a multipage image.

public isMultiPage ( ) : boolean
return	boolean

key() public method

Get the index of the internal iterator.

public key ( ) : integer
return	integer

load() public method

Loads the given view into memory.

public load ( string $view = 'full', Ansel_Style $style = null )
$view	string	Which view to load.
$style	Ansel_Style	The gallery style.

mirror() public method

Mirrors the image.

public mirror ( string $view = 'full' )
$view	string	The view (size) to work with.

next() public method

Advance the iterator

public next ( ) : mixed
return	mixed	Ansel_Image or false if not valid()

raw() public method

Returns the raw data for the given view.

public raw ( string $view = 'full' ) : string
$view	string	Which view to return.
return	string	The raw binary image data

removeTag() public method

Remove a single tag from this image's tag collection

public removeTag ( string $tag )
$tag	string	The tag name to remove.

replace() public method

Replace this image's image data.

public replace ( array $imageData ) : void
$imageData	array	An array of image data, the same keys as Const'r
return	void

reset() public method

Reset the image, removing all loaded views.

public reset ( )

resize() public method

Resize the current image.

public resize ( integer $width, integer $height, boolean $ratio = true, boolean $keepProfile = false )
$width	integer	The new width.
$height	integer	The new height.
$ratio	boolean	Maintain original aspect ratio.
$keepProfile	boolean	Keep the image meta data.

rewind() public method

Reset the iterator to the first image in the set.

public rewind ( ) : void
return	void

rotate() public method

Rotates the image.

public rotate ( string $view = 'full', integer $angle = 90 )
$view	string	The view (size) to work with.
$angle	integer	What angle to rotate the image by.

save() public method

Save image details to storage.

public save ( ) : integer
return	integer	image id

setTags() public method

Either add or replace this image's tags.

public setTags ( array $tags, boolean $replace = true )
$tags	array	An array of tag names
$replace	boolean	Replace all tags with those provided.

toFile() public method

Wraps the given view into a file.

Deprecation: Not used anywhere, remove in A4.

public toFile ( string $view = 'full' ) : string
$view	string	Which view to wrap up.
return	string	Path to temporary file.

updateData() public method

Change the image data. Deletes old cache and writes the new data to the VFS. Used when updating an image

public updateData ( string $data, string $view = 'full' )
$data	string	The new data for this image.
$view	string	If specified, the $data represents only this particular view. Cache will not be deleted.

valid() public method

Deterimines if the current iterator item is valid.

public valid ( ) : boolean
return	boolean

viewExists() public static method

Check if an image view exists and returns the vfs name complete with the hash directory name prepended if appropriate.

public static viewExists ( integer $id, string $view, Ansel_Style $style ) : mixed
$id	integer	Image id to check
$view	string	Which view to check for
$style	Ansel_Style	Style object
return	mixed	False if image does not exists \| string vfs name

watermark() public method

Watermarks the image.

public watermark ( string $view = 'full', string $watermark = null, string $halign = null, string $valign = null, string $font = null )
$view	string	The view (size) to work with.
$watermark	string	String to use as the watermark.
$halign	string	Horizontal alignment (Left, Right, Center)
$valign	string	Vertical alignment (Top, Center, Bottom)
$font	string	The font to use (not all image drivers will support this).

Property Details

$_data protected_oe property

Binary image data for loaded views

protected array $_data
return	array

$_dirty protected_oe property

Dirty flag

protected bool $_dirty
return	boolean

$_exif protected_oe property

Cache the raw EXIF data locally

protected array $_exif
return	array

$_image protected_oe property

Horde_Image object for this image.

protected Horde_Image_Base $_image
return	Horde_Image_Base

$_loaded protected_oe property

Flags for loaded views

protected array $_loaded
return	array

$_tags protected_oe property

Holds an array of tags for this image

protected array $_tags
return	array

$caption public_oe property

Image caption

public string $caption
return	string

$commentCount public_oe property

The number of comments for this image, if available.

public int $commentCount
return	integer

$facesCount public_oe property

Number of faces in this image

public int $facesCount
return	integer

$filename public_oe property

The filename for this image

public string $filename
return	string

$gallery public_oe property

The gallery id of this image's parent gallery

public int $gallery
return	integer

$geotag_timestamp public_oe property

Timestamp for when image was geotagged

public int $geotag_timestamp
return	integer

$id public_oe property

Image Id

public int $id
return	integer

$lat public_oe property

Latitude

public string $lat
return	string

$lng public_oe property

Longitude

public string $lng
return	string

$location public_oe property

Textual location

public string $location
return	string

$originalDate public_oe property

Timestamp of original date.

public int $originalDate
return	integer

$sort public_oe property

Sort count for this image

public int $sort
return	integer

$type public_oe property

The image's mime type

public string $type
return	string

$uploaded public_oe property

Timestamp of uploaded datetime

public int $uploaded
return	integer