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Merge pull request #3334 from jedateach/fixes/imagick-padresize

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Image Magick PaddedResize fix
This commit is contained in:
Sean Harvey 2014-08-19 14:19:13 +12:00
commit 8bd867ef4e
1 changed files with 7 additions and 42 deletions
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49
filesystem/ImagickBackend.php
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@ -23,9 +23,8 @@ class ImagickBackend extends Imagick implements Image_Backend {
public function __construct($filename = null) {
if(is_string($filename)) {
parent::__construct($filename);
} else {
self::setImageCompressionQuality($this->config()->default_quality);
}
$this->setQuality(Config::inst()->get('ImagickBackend','default_quality'));
}
/**
@ -184,46 +183,12 @@ class ImagickBackend extends Imagick implements Image_Backend {
* @param int $height
* @return Image_Backend
*/
public function paddedResize($width, $height, $backgroundColor = "#FFFFFF00") {
if(!$this->valid()) return;
$width = round($width);
$height = round($height);
$geometry = $this->getImageGeometry();
// Check that a resize is actually necessary.
if ($width == $geometry["width"] && $height == $geometry["height"]) {
return $this;
}
$new = clone $this;
$new->setBackgroundColor($backgroundColor);
$destAR = $width / $height;
if ($geometry["width"] > 0 && $geometry["height"] > 0) {
// We can't divide by zero theres something wrong.
$srcAR = $geometry["width"] / $geometry["height"];
// Destination narrower than the source
if($destAR > $srcAR) {
$destY = 0;
$destHeight = $height;
$destWidth = round( $height * $srcAR );
$destX = round( ($width - $destWidth) / 2 );
// Destination shorter than the source
} else {
$destX = 0;
$destWidth = $width;
$destHeight = round( $width / $srcAR );
$destY = round( ($height - $destHeight) / 2 );
}
$new->extentImage($width, $height, $destX, $destY);
}
public function paddedResize($width, $height, $backgroundColor = "FFFFFF") {
$new = $this->resizeRatio($width, $height);
$new->setImageBackgroundColor("#".$backgroundColor);
$w = $new->getImageWidth();
$h = $new->getImageHeight();
$new->extentImage($width,$height,($w-$width)/2,($h-$height)/2);
return $new;
}