Class Horde_Image_Png

This class implements the Horde_Image:: API for PNG images. It mainly provides some utility functions, such as the ability to make pixels or solid images for now.

See the enclosed file COPYING for license information (LGPL). If you did not receive this file, see http://www.horde.org/licenses/lgpl21.

EmptyIterator implements Iterator, Traversable

Horde_Image_Base

Horde_Image_Png

Package: Image
Author: Mike Cochrane mike@graftonhall.co.nz
Located at Horde/Image/Png.php

Methods summary
`public`	# `__construct( array $params, array $context = array() )` PNG image constructor. PNG image constructor. Parameters `$params` The image object parameters. Values include: <pre>(optional)width - The desired image width (optional)height - The desired image height (optional)type - The image type (png, jpeg etc...) <span class="php-keyword1">If</span> not provided, <span class="php-keyword1">or</span> set by the <span class="php-keyword2">setType</span> method, any image output will be converted to the <span class="php-keyword1">default</span> image type of png. (optional)data - The image binary data.</pre> `$context` The object context - configuration, injected objects <pre>(required)tmpdir - Temporary directory (optional)logger - The logger</pre> Throws InvalidArgumentException
`public string`	# `getContentType( )` Return the content type for this image. Return the content type for this image. Returns `string` The content type for this image. Overrides `Horde_Image_Base::getContentType()`
`public string`	# `raw( )` Return the raw data for this image. Return the raw data for this image. Returns `string` The raw image data. Overrides `Horde_Image_Base::raw()`
`public`	# `reset( )` Reset the image data. Reset the image data. Overrides `Horde_Image_Base::reset()`
`public`	# `rectangle( integer $x, integer $y, integer $width, integer $height, string $color = 'black', string $fill = 'none' )` Draw a rectangle. Draw a rectangle. Parameters `$x` The left x-coordinate of the rectangle. `$y` The top y-coordinate of the rectangle. `$width` The width of the rectangle. `$height` The height of the rectangle. `$color` The line color of the rectangle. `$fill` The color to fill the rectangle with.
`public`	# `_header( )` Create the PNG file header. Create the PNG file header.
`public`	# `_IHDR( )` Create Image Header block. Create Image Header block.
`public`	# `_IEND( )` Create IEND block. Create IEND block.
`public`	# `_IDAT( )` Create Image Data block. Create Image Data block.
`public`	# `_tEXt( mixed $keyword, mixed $text )` Create tEXt block. Create tEXt block.
`public`	# `_tIME( mixed $date = null )` Create last modified time block. Create last modified time block.
`public`	# `_Adler32( mixed $input )` Calculate an Adler32 checksum for a string. Calculate an Adler32 checksum for a string.
`public Horde_Image_Base`	# `getImageAtIndex( integer $index )` Request a specific image from the collection of images. Request a specific image from the collection of images. Parameters `$index` The index to return Returns `Horde_Image_Base` Throws `Horde_Image_Exception`
`public integer`	# `getImagePageCount( )` Return the number of image pages available in the image object. Return the number of image pages available in the image object. Returns `integer`

Methods inherited from Horde_Image_Base
`addEffect(), applyEffects(), brush(), clearGeometry(), display(), getCapabilities(), getDimensions(), getLoadedEffects(), getTmpDir(), getType(), hasCapability(), headers(), loadFile(), loadString(), setType(), toFile()`

Methods inherited from EmptyIterator
`current(), key(), next(), rewind(), valid()`

Properties summary
`public array`	`$_img` The array of pixel data. The array of pixel data.	# `array()`
`public integer`	`$_colorDepth` Color depth (only 8 and 16 implemented). Color depth (only 8 and 16 implemented).	# `8`
`public integer`	`$_colorType` Color type (only 2 (true color) implemented). Color type (only 2 (true color) implemented).	# `2`
`public integer`	`$_compressionMethod` Compression method (0 is the only current valid value). Compression method (0 is the only current valid value).	# `0`
`public integer`	`$_filterMethod` Filter method (0 is the only current valid value). Filter method (0 is the only current valid value).	# `0`
`public integer`	`$_interlaceMethod` Interlace method (only 0 (no interlace) implemented). Interlace method (only 0 (no interlace) implemented).	# `0`

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Class Horde_Image_Png

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