Class Gif in namespace setasign\SetaPDF2\Core\Image in SetaPDF v2 API Reference

Index

\setasign\SetaPDF2
1. Core
  1. Image
    1. Gif
    2. Gif
      1. Block
      2. Filter
      3. Frame
      4. Reader
      5. Reader

setasign\SetaPDF2\Core\Image

Gif Class representing a GIF image

File: /SetaPDF v2/Core/Image/Gif.php
Old class name (alias): \SetaPDF_Core_Image_Gif

Class hierarchy

Image
- Gif

Summary

Constants

TYPE_GIF

public const string Image::TYPE_GIF = 'gif'

Image type

TYPE_JPEG

public const string Image::TYPE_JPEG = 'jpeg'

Image type

TYPE_JPEG2000

public const string Image::TYPE_JPEG2000 = 'jpeg2000'

Image type

TYPE_PNG

public const string Image::TYPE_PNG = 'png'

Image type

TYPE_TIFF

public const string Image::TYPE_TIFF = 'tiff'

Image type

TYPE_UNKNOWN

public const string Image::TYPE_UNKNOWN = 'unknown'

Image type

Properties

$_binaryReader

protected \setasign\SetaPDF2\Core\Reader\BinaryReader Image::$_binaryReader

Binary Reader

$_bitsPerComponent

protected int Image::$_bitsPerComponent = 8

Bits per component

$_colorSpace

protected int Image::$_colorSpace = -1

The image type specific colorspace

$_dpiX

protected int Image::$_dpiX = 0

Dots-per-inch in the X direction

$_dpiY

protected int Image::$_dpiY = 0

Dots-per-inch in the Y direction

$_frame

private int Gif::$_frame = 0

The frame that will get rendered when calling toXObject().

$_frames

private Gif\Frame[] Gif::$_frames

The given frames.

$_height

protected int Image::$_height

The pixel height

$_inverted

protected bool Image::$_inverted = false

Flag for color inversion

$_width

protected int Image::$_width

The pixel width

Static Methods

get()

public static Image::get (

\setasign\SetaPDF2\Core\Reader\ReaderInterface $reader

): Image

Get an image by a reader.

Parameters

$reader : \setasign\SetaPDF2\Core\Reader\ReaderInterface: The reader instance

Exceptions

Throws \setasign\SetaPDF2\NotImplementedException If the image type is not supported (supported types: JPEG, PNG, JPEG2000).

getByPath()

public static Image::getByPath (

string $path

): Image

Get an image by a path.

Parameters

$path : string: The path to the image

getType()

public static Image::getType (

\setasign\SetaPDF2\Core\Reader\ReaderInterface $reader

): string

Get an image type by a reader.

Parameters

$reader : \setasign\SetaPDF2\Core\Reader\ReaderInterface

Methods

__construct()

public Image::__construct (

?\setasign\SetaPDF2\Core\Reader\ReaderInterface $reader = null

)

The constructor.

Parameters

$reader : ?\setasign\SetaPDF2\Core\Reader\ReaderInterface

_process()

protected Gif::_process (

void

): void

Processes the image data.

Exceptions

Throws Exception

Throws \setasign\SetaPDF2\NotImplementedException

getBitsPerComponent()

public Image::getBitsPerComponent (

void

): int

Get the bits per component value.

getColorSpace()

public Image::getColorSpace (

void

): int|float

Get the image type specific colorspace.

getDpiX()

public Image::getDpiX (

void

): int|float

Get the dots-per-inch in the X direction.

getDpiY()

public Image::getDpiY (

void

): int|float

Get the dots-per-inch in the Y direction.

getFrame()

public Gif::getFrame (

void

): int

Get the active frame.

getFrameCount()

public Gif::getFrameCount (

void

): int

Returns the total number of available frames.

getHeight()

public Image::getHeight (

float $width = null

): int|float

Get the height.

Parameters

$width : float: Value for keeping the aspect ratio

getWidth()

public Image::getWidth (

float $height = null

): int|float

Get the width.

Parameters

$height : float: Value for keeping the aspect ratio

setFrame()

public Gif::setFrame (

int $value

): void

Sets the active frame.

Parameters

$value : int: Numbering starts by zero.

Exceptions

Throws Exception

toXObject()

public Gif::toXObject (

\setasign\SetaPDF2\Core\Document $document

): \setasign\SetaPDF2\Core\XObject\Image

Converts an image to an external object.

Parameters

$document : \setasign\SetaPDF2\Core\Document

Exceptions

Throws Exception