PHP Class Horde_Image_Base, horde

Author: Chuck Hagenbuch ([email protected])

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

Author: Jan Schneider ([email protected])

Inheritance: extends EmptyIterator

显示文件 Open project: horde/horde Class Usage Examples

Protected Properties

Property	Type	Description
$_background	string	Background color.
$_capabilities	array	Capabilites of this driver.
$_context		Cache the context
$_data	string	The current image data.
$_height	integer	The current height of the image data.
$_loadedEffects	array	Array containing available Effects
$_logger		Logger.
$_tmpdir	string	A directory for temporary files.
$_type	string	What kind of images should ImageMagick generate? Defaults to 'png'.
$_width	integer	The current width of the image data.

Public Methods

Method	Description
__call ( $method, $args )	Catch-all method so that we don't error out when calling an unsupported manipulation method.
addEffect ( string $type, array $params )	Attempts to apply requested effect to this image.
applyEffects ( )	Applies any effects in the effect queue.
brush ( integer $x, integer $y, string $color = 'black', string $shape = 'square' )	Draws a shaped point at the specified (x,y) point.
clearGeometry ( )	Utility function to zero out cached geometry information.
display ( )	Displays the current image.
getCapabilities ( ) : array	Returns the capabilities.
getContentType ( ) : string	Returns the MIME type for this image.
getDimensions ( ) : array	Returns the height and width of the current image data.
getImageAtIndex ( integer $index ) : Horde_Image_Base	Returns a specific image from the pages of images.
getImagePageCount ( ) : integer	Returns the number of image pages available in the image object.
getLoadedEffects ( )	Returns a list of available effects for this driver.
getTmpDir ( ) : string	Returns the current temporary directory.
getType ( ) : string	Returns the image type.
hasCapability ( string $capability ) : boolean	Checks the existence of a particular capability.
headers ( )	Sends HTTP headers for the image.
loadFile ( string $filename )	Loads the image data from a file.
loadString ( string $image_data )	Loads the image data from a string.
raw ( boolean $convert = false ) : string	Returns the raw data for this image.
reset ( )	Resets the image data to defaults.
setType ( string $type ) : string	Sets the output image type.
toFile ( $data = null ) : string	Saves image data to file.

Protected Methods

Method	Description
__construct ( array $params, array $context = [] )	Constructor.
_logDebug ( string $message )	Logs a message at debug level.
_logErr ( string $message )	Logs a message at error level.

Method Details

__call() public method

Catch-all method so that we don't error out when calling an unsupported manipulation method.

public __call ( $method, $args )

__construct() protected method

Constructor.

protected __construct ( array $params, array $context = [] )
$params	array	The image object parameters. Values include: - background: (string) The background color. DEFAULT: white. - data: (string) The image binary data. - height: (integer) The desired image height. - type: (string) The output image type (png, jpeg etc.). DEFAULT: png. - width: (integer) The desired image width.
$context	array	The object context - configuration, injected objects: - logger: (Horde_Log_Logger) A logger. - tmpdir: [REQUIRED] (string) Temporary directory.

_logDebug() protected method

Logs a message at debug level.

protected _logDebug ( string $message )
$message	string	The log message.

_logErr() protected method

Logs a message at error level.

protected _logErr ( string $message )
$message	string	The log message.

addEffect() public method

Attempts to apply requested effect to this image.

public addEffect ( string $type, array $params )
$type	string	The type of effect to apply.
$params	array	Any parameters for the effect.

applyEffects() public method

Applies any effects in the effect queue.

public applyEffects ( )

brush() public method

Useful for scatter diagrams, debug points, etc. Draws squares, circles, diamonds, and triangles.

public brush ( integer $x, integer $y, string $color = 'black', string $shape = 'square' )
$x	integer	The x coordinate of the point to brush.
$y	integer	The y coordinate of the point to brush.
$color	string	The color to brush the point with.
$shape	string	What brush to use? Defaults to a square.

clearGeometry() public method

Shouldn't really be called from client code, but is needed since effects may need to clear these.

public clearGeometry ( )

display() public method

Displays the current image.

public display ( )

getCapabilities() public method

Returns the capabilities.

public getCapabilities ( ) : array
return	array	A list of backend capabilities.

getContentType() public method

Returns the MIME type for this image.

public getContentType ( ) : string
return	string	The MIME type for this image.

getDimensions() public method

Returns the height and width of the current image data.

public getDimensions ( ) : array
return	array	An hash with 'width' containing the width, 'height' containing the height of the image.

getImageAtIndex() public method

Returns a specific image from the pages of images.

public getImageAtIndex ( integer $index ) : Horde_Image_Base
$index	integer	The index to return.
return	Horde_Image_Base	The requested image

getImagePageCount() public method

Returns the number of image pages available in the image object.

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

getLoadedEffects() public method

Returns a list of available effects for this driver.

public getLoadedEffects ( )

getTmpDir() public method

Returns the current temporary directory.

public getTmpDir ( ) : string
return	string	The current temporary directory.

getType() public method

Returns the image type.

public getType ( ) : string
return	string	The type of this image (png, jpg, etc.).

hasCapability() public method

Checks the existence of a particular capability.

public hasCapability ( string $capability ) : boolean
$capability	string	The capability to check for.
return	boolean	True if the backend has this capability.

headers() public method

Sends HTTP headers for the image.

public headers ( )

loadFile() public method

Loads the image data from a file.

public loadFile ( string $filename )
$filename	string	The full path and filename to the file to load the image data from.

loadString() public method

Loads the image data from a string.

public loadString ( string $image_data )
$image_data	string	The data to use for the image.

raw() public method

Returns the raw data for this image.

public raw ( boolean $convert = false ) : string
$convert	boolean	If true, the image data will be returned in the target format, independently from any image operations.
return	string	The raw image data.

reset() public method

Resets the image data to defaults.

public reset ( )

setType() public method

Sets the output image type.

public setType ( string $type ) : string
$type	string	An image type (png, jpg, etc.)
return	string	The previous image type.

toFile() public method

If $data is false, saves current image data after performing any pending operations on the data. If $data contains raw image data, saves that data to file without regard for the current image data.

public toFile ( $data = null ) : string
return	string	Path to temporary file.

Property Details

$_background protected_oe property

Background color.

protected string $_background
return	string

$_capabilities protected_oe property

Capabilites of this driver.

protected array $_capabilities
return	array

$_context protected_oe property

Cache the context

protected $_context

$_data protected_oe property

The current image data.

protected string $_data
return	string

$_height protected_oe property

The current height of the image data.

protected int $_height
return	integer

$_loadedEffects protected_oe property

Array containing available Effects

protected array $_loadedEffects
return	array

$_logger protected_oe property

Logger.

protected $_logger

$_tmpdir protected_oe property

A directory for temporary files.

protected string $_tmpdir
return	string

$_type protected_oe property

What kind of images should ImageMagick generate? Defaults to 'png'.

protected string $_type
return	string

$_width protected_oe property

The current width of the image data.

protected int $_width
return	integer