Pdf/Resource/Image/Png.php
- category
- Zend
- copyright
- Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- license
- http://framework.zend.com/license/new-bsd New BSD License
- package
- Zend_Pdf
- version
- $Id: Png.php 22655 2010-07-22 18:47:20Z mabe $
- Classes
- Zend_Pdf_Resource_Image_Png
Description
Zend Framework
LICENSE
This source file is subject to the new BSD license that is bundled with this package in the file LICENSE.txt. It is also available through the world-wide-web at this URL: http://framework.zend.com/license/new-bsd If you did not receive a copy of the license and are unable to obtain it through the world-wide-web, please send an email to license@zend.com so we can send you a copy immediately.
Zend_Pdf_Resource_Image_Png
- Extends from
- Zend_Pdf_Resource_Image
- copyright
- Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- license
- http://framework.zend.com/license/new-bsd New BSD License
- package
- Zend_Pdf
- Constants
- PNG_COMPRESSION_DEFAULT_STRATEGY
- PNG_COMPRESSION_FILTERED
- PNG_COMPRESSION_HUFFMAN_ONLY
- PNG_COMPRESSION_RLE
- PNG_FILTER_NONE
- PNG_FILTER_SUB
- PNG_FILTER_UP
- PNG_FILTER_AVERAGE
- PNG_FILTER_PAETH
- PNG_INTERLACING_DISABLED
- PNG_INTERLACING_ENABLED
- PNG_CHANNEL_GRAY
- PNG_CHANNEL_RGB
- PNG_CHANNEL_INDEXED
- PNG_CHANNEL_GRAY_ALPHA
- PNG_CHANNEL_RGB_ALPHA
- Properties
- $_width
- $_height
- $_imageProperties
- Methods
- __construct
- getPixelWidth
- getPixelHeight
- getProperties
Description
PNG image
Constants
PNG_COMPRESSION_DEFAULT_STRATEGY
PNG_COMPRESSION_DEFAULT_STRATEGY = '0'
Details
- value
- 0
PNG_COMPRESSION_FILTERED
PNG_COMPRESSION_FILTERED = '1'
Details
- value
- 1
PNG_COMPRESSION_HUFFMAN_ONLY
PNG_COMPRESSION_HUFFMAN_ONLY = '2'
Details
- value
- 2
PNG_COMPRESSION_RLE
PNG_COMPRESSION_RLE = '3'
Details
- value
- 3
PNG_FILTER_NONE
PNG_FILTER_NONE = '0'
Details
- value
- 0
PNG_FILTER_SUB
PNG_FILTER_SUB = '1'
Details
- value
- 1
PNG_FILTER_UP
PNG_FILTER_UP = '2'
Details
- value
- 2
PNG_FILTER_AVERAGE
PNG_FILTER_AVERAGE = '3'
Details
- value
- 3
PNG_FILTER_PAETH
PNG_FILTER_PAETH = '4'
Details
- value
- 4
PNG_INTERLACING_DISABLED
PNG_INTERLACING_DISABLED = '0'
Details
- value
- 0
PNG_INTERLACING_ENABLED
PNG_INTERLACING_ENABLED = '1'
Details
- value
- 1
PNG_CHANNEL_GRAY
PNG_CHANNEL_GRAY = '0'
Details
- value
- 0
PNG_CHANNEL_RGB
PNG_CHANNEL_RGB = '2'
Details
- value
- 2
PNG_CHANNEL_INDEXED
PNG_CHANNEL_INDEXED = '3'
Details
- value
- 3
PNG_CHANNEL_GRAY_ALPHA
PNG_CHANNEL_GRAY_ALPHA = '4'
Details
- value
- 4
PNG_CHANNEL_RGB_ALPHA
PNG_CHANNEL_RGB_ALPHA = '6'
Details
- value
- 6
Properties
$_height
$_height = ''
Details
- visibility
- protected
- default
- final
- false
- static
- false
$_imageProperties
$_imageProperties = ''
Details
- visibility
- protected
- default
- final
- false
- static
- false
$_width
$_width = ''
Details
- visibility
- protected
- default
- final
- false
- static
- false
Methods
__construct
__construct(
string $imageFileName
)
:
Object constructor
Arguments
- $imageFileName
- string
Details
- visibility
- public
- final
- false
- static
- false
- throws
- todo
- Add compression conversions to support compression strategys other than PNG_COMPRESSION_DEFAULT_STRATEGY.
- todo
- Add pre-compression filtering.
- todo
- Add interlaced image handling.
- todo
- Add support for 16-bit images. Requires PDF version bump to 1.5 at least.
- todo
- Add processing for all PNG chunks defined in the spec. gAMA etc.
- todo
- Fix tRNS chunk support for Indexed Images to a SMask.
getPixelHeight
getPixelHeight(
)
:
Image height
Details
- visibility
- public
- final
- false
- static
- false
getPixelWidth
getPixelWidth(
)
:
Image width
Details
- visibility
- public
- final
- false
- static
- false
getProperties
getProperties(
)
:
Image properties
Details
- visibility
- public
- final
- false
- static
- false