Docs For Class Zend_Pdf_Image

Description

PNG image

license: New BSD License
copyright: Copyright (c) 2006 Zend Technologies USA Inc. (http://www.zend.com)

Located in /Zend/Pdf/Resource/Image/PNG.php (line 41)

Zend_Pdf_Resource
   |
   --Zend_Pdf_Image
      |
      --Zend_Pdf_Image_PNG

Class Constant Summary

PNG_CHANNEL_GRAY = 0

PNG_CHANNEL_GRAY_ALPHA = 4

PNG_CHANNEL_INDEXED = 3

PNG_CHANNEL_RGB = 2

PNG_CHANNEL_RGB_ALPHA = 6

PNG_COMPRESSION_DEFAULT_STRATEGY = 0

PNG_COMPRESSION_FILTERED = 1

PNG_COMPRESSION_HUFFMAN_ONLY = 2

PNG_COMPRESSION_RLE = 3

PNG_FILTER_AVERAGE = 3

PNG_FILTER_NONE = 0

PNG_FILTER_PAETH = 4

PNG_FILTER_SUB = 1

PNG_FILTER_UP = 2

PNG_INTERLACING_DISABLED = 0

PNG_INTERLACING_ENABLED = 1

Variable Summary

mixed $_height

mixed $_imageProperties

mixed $_width

Method Summary

void getPixelHeight ()

void getPixelWidth ()

void getProperties ()

Zend_Pdf_Image_PNG __construct (string $imageFileName)

Variables

mixed $_height (line 64)

access: protected

mixed $_imageProperties (line 65)

access: protected

mixed $_width (line 63)

access: protected

Inherited Variables

Inherited from Zend_Pdf_Resource

Zend_Pdf_Resource::$_objectFactory
Zend_Pdf_Resource::$_resource

Methods

getPixelHeight (line 346)

Image height

access: public

void getPixelHeight ()

Redefinition of:

Zend_Pdf_Image::getPixelHeight(): get the height in pixels of the image

getPixelWidth (line 339)

Image width

access: public

void getPixelWidth ()

Redefinition of:

Zend_Pdf_Image::getPixelWidth(): get the width in pixels of the image

getProperties (line 353)

Image properties

access: public

void getProperties ()

Redefinition of:

Zend_Pdf_Image::getProperties(): gets an associative array of information about an image

Constructor __construct (line 79)

Object constructor

todo: Add pre-compression filtering.
todo: Add compression conversions to support compression strategys other than PNG_COMPRESSION_DEFAULT_STRATEGY.
access: public
todo: Add interlaced image handling.
todo: Add support for 16-bit images. Requires PDF version bump to 1.5 at least.
todo: Fix tRNS chunk support for Indexed Images to a SMask.
todo: Add processing for all PNG chunks defined in the spec. gAMA etc.
throws: Zend_Pdf_Exception

Zend_Pdf_Image_PNG __construct (string $imageFileName)

string $imageFileName

Redefinition of:

Zend_Pdf_Image::__construct(): Object constructor.

Inherited Methods

Inherited From Zend_Pdf_Image

Zend_Pdf_Image::__construct()
Zend_Pdf_Image::getPixelHeight()
Zend_Pdf_Image::getPixelWidth()
Zend_Pdf_Image::getProperties()

Inherited From Zend_Pdf_Resource

Zend_Pdf_Resource::__construct()
Zend_Pdf_Resource::getResource()

Class Constants

PNG_CHANNEL_GRAY = 0 (line 57)

PNG_CHANNEL_GRAY_ALPHA = 4 (line 60)

PNG_CHANNEL_INDEXED = 3 (line 59)

PNG_CHANNEL_RGB = 2 (line 58)

PNG_CHANNEL_RGB_ALPHA = 6 (line 61)

PNG_COMPRESSION_DEFAULT_STRATEGY = 0 (line 43)

PNG_COMPRESSION_FILTERED = 1 (line 44)

PNG_COMPRESSION_HUFFMAN_ONLY = 2 (line 45)

PNG_COMPRESSION_RLE = 3 (line 46)

PNG_FILTER_AVERAGE = 3 (line 51)

PNG_FILTER_NONE = 0 (line 48)

PNG_FILTER_PAETH = 4 (line 52)

PNG_FILTER_SUB = 1 (line 49)

PNG_FILTER_UP = 2 (line 50)

PNG_INTERLACING_DISABLED = 0 (line 54)

PNG_INTERLACING_ENABLED = 1 (line 55)

Class Zend_Pdf_Image_PNG

Inherited Variables

Inherited Methods