Class Png

Jaguar\AbstractCanvas implements Jaguar\CanvasInterface

Extended by

Jaguar\CompressableCanvas

Extended by

Jaguar\Format\Png

Namespace: Jaguar\Format
Located at Jaguar/Format/Png.php

Methods summary

`public`	# `__construct( Jaguar\Dimension\|Jaguar\CanvasInterface\|file\|null $source = null, integer $quality = 40, boolean $saveAlpha = true, mixed $filter = Jaguar\Format\Png::ALL_FILTERS )` construct new png canvas construct new png canvas Parameters `$source` `Jaguar\Dimension\|Jaguar\CanvasInterface\|file\|null` $source `$quality` `integer` $quality default 40 `$saveAlpha` `boolean` $saveAlpha default true `$filter` Throws `Jaguar\Exception\InvalidDimensionException` `Jaguar\Exception\CanvasCreationException` Overrides `Jaguar\CompressableCanvas::__construct`
`public Jaguar\Format\Png`	# `setSaveAlpha( boolean $bool )` Save Alpha Channel Information Save Alpha Channel Information Sets the flag to attempt to save full alpha channel information (as opposed to single-color transparency) when saving PNG images. Also Note that the alphaBelnding will be set to false in order to enable this option. Note Alpha channel is not supported by all browsers. Parameters `$bool` `boolean` $bool Returns `Jaguar\Format\Png`
`public boolean`	# `getSaveAlpha( )` Get Save Alpha Get Save Alpha Check if the channel information will be saved with canvas or not Returns `boolean`
`public Jaguar\Format\Png`	# `setFilter( integer $filter )` Set the png filter constant Set the png filter constant Parameters `$filter` `integer` $filter Returns `Jaguar\Format\Png`
`public integer`	# `getFilter( )` Get the png filter constant Get the png filter constant Returns `integer`
`public static boolean`	# `isPngFile( string $filename )` Check if the given file is png file Check if the given file is png file Parameters `$filename` `string` $filename Returns `boolean` true if png file,false otherwise

Methods inherited from Jaguar\CompressableCanvas

getQuality(), setQuality()

Methods inherited from Jaguar\AbstractCanvas

__clone(), __toString(), alphaBlending(), create(), destroy(), draw(), fill(), fromCanvas(), fromFile(), fromString(), getColorAt(), getCopy(), getDimension(), getHandler(), getHeight(), getPixel(), getWidth(), isGdResource(), isHandlerSet(), isTrueColor(), paste(), save(), setHandler()

Magic methods summary

Constants summary

`integer`	`NO_FILTER`	`PNG_NO_FILTER`	#
`integer`	`FILTER_NONE`	`PNG_FILTER_NONE`	#
`integer`	`FILTER_SUB`	`PNG_FILTER_SUB`	#
`integer`	`FILTER_UP`	`PNG_FILTER_UP`	#
`integer`	`FILTER_AVG`	`PNG_FILTER_AVG`	#
`integer`	`FILTER_PAETH`	`PNG_FILTER_PAETH`	#
`integer`	`ALL_FILTERS`	`PNG_ALL_FILTERS`	#

Constants inherited from Jaguar\CompressableCanvas

QUALITY_DRAFT, QUALITY_HIGH, QUALITY_LOW, QUALITY_MAX, QUALITY_MED