Pdf/FileParser/Image/Png.php
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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
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- Category
- Zend
- Copyright
- Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
- License
- New BSD License
- Package
- Zend_Pdf
- Subpackage
- FileParser
- Version
- $Id$
\Zend_Pdf_FileParser_Image_Png
Package: Zend_Pdf\FileParser
Abstract base class for Image file parsers.
Provides a library of methods to quickly navigate and extract various data
types (signed and unsigned integers, floating- and fixed-point numbers,
strings, etc.) from the file.
File access is managed via a {@link Zend_Pdf_FileParserDataSource} object.
This allows the same parser code to work with many different data sources:
in-memory objects, filesystem files, etc.
- Parent(s)
- \Zend_Pdf_FileParser_Image < \Zend_Pdf_FileParser
- Copyright
- Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
- License
- New BSD License
Properties
$_bitsDetails
- Type
- n/a
$_colorDetails
- Type
- n/a
$_compressionDetails
- Type
- n/a
$_heightDetails
- Type
- n/a
$_imageDataDetails
- Type
- n/a
$_interlacingDetails
- Type
- n/a
$_isPNGDetails
- Type
- n/a
$_paletteDataDetails
- Type
- n/a
$_preFilterDetails
- Type
- n/a
$_transparencyDataDetails
- Type
- n/a
$_widthDetails
- Type
- n/a
Methods
_checkSignature() : void_parseChunks() : void_parseIDATChunk( $chunkOffset, $chunkLength) : voidParameters
| Name | Type | Description |
|---|---|---|
| $chunkOffset | ||
| $chunkLength |
_parseIHDRChunk() : void_parsePLTEChunk( $chunkOffset, $chunkLength) : voidParameters
| Name | Type | Description |
|---|---|---|
| $chunkOffset | ||
| $chunkLength |
_parseSignature() : void_parseTRNSChunk( $chunkOffset, $chunkLength) : voidParameters
| Name | Type | Description |
|---|---|---|
| $chunkOffset | ||
| $chunkLength |
getBitDepth() : voidgetColorSpace() : voidgetCompressionStrategy() : voidgetHeight() : voidgetInterlacingMode() : voidgetPaethFilter() : voidgetRawImageData() : voidgetRawPaletteData() : voidgetRawTransparencyData() : voidgetWidth() : voidparse() : voidReads and parses the image data from the file on disk.
Throws
| Exception | Description |
|---|---|
| \Zend_Pdf_Exception |
screen() : voidVerifies that the image file is in the expected format.
Throws
| Exception | Description |
|---|---|
| \Zend_Pdf_Exception |