API Documentation

Pdf/Resource/GraphicsState.php

Zend Framework

LICENSE

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category
Zend  
copyright
Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)  
license
New BSD License  
package
Zend_Pdf  
version
$Id: Image.php 20096 2010-01-06 02:05:09Z bkarwin $  

\Zend_Pdf_Resource_GraphicsState

Graphics State.

While some parameters in the graphics state can be set with individual operators, as shown in Table 4.7, others cannot. The latter can only be set with the generic graphics state operator gs (PDF 1.2).

Extends from
\Zend_Pdf_Resource
copyright
Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)  
license
New BSD License  
package
Zend_Pdf  

Methods

methodpublic__clone( ) : void

Clone page, extract it and dependent objects from the current document, so it can be used within other docs.

Inherited from: \Zend_Pdf_Resource::__clone()
methodpublic__construct( \Zend_Pdf_Element_Object $extGStateObject = null ) : void

Object constructor.

If resource is not a Zend_Pdf_Element object, then stream object with specified value is generated.

Parameters
Name Type Description
$extGStateObject \Zend_Pdf_Element_Object
Throws
Exception Description
\Zend_Pdf_Exception
methodpublicsetAlpha( float $alpha, string $mode = Normal ) : \Zend_Pdf_Canvas_Interface

Set the transparancy

$alpha == 0 - transparent $alpha == 1 - opaque

Transparency modes, supported by PDF: Normal (default), Multiply, Screen, Overlay, Darken, Lighten, ColorDodge, ColorBurn, HardLight, SoftLight, Difference, Exclusion

Parameters
Name Type Description
$alpha float
$mode string
Returns
Type Description
\Zend_Pdf_Canvas_Interface
Throws
Exception Description
\Zend_Pdf_Exception
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