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<?php |
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/** |
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* Resize |
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* |
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* @Author: Jens Kooij |
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* @Version: 1.0 |
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* @package: JNS MVC |
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* @Licence: http://creativecommons.org/licenses/by-nc-nd/3.0/ Attribution-NonCommercial-NoDerivs 3.0 Unported |
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*/ |
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namespace library\images\methods |
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{ |
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use \library\images\IMethod; |
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class Resize extends IMethod |
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{ |
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protected $_width; |
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protected $_height; |
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protected $_preserveAspectRatio = true; |
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/** |
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* Set the width |
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* |
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* @param int $width |
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* @return self |
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*/ |
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public function SetWidth($width) |
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{ |
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$this->_width = intval($width); |
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return $this; |
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} |
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/** |
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* Set the height |
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* |
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* @param int $height |
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* @return self |
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*/ |
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public function SetHeight($height) |
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{ |
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$this->_height = intval($height); |
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return $this; |
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} |
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/** |
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* Sets wheter or not the aspect ratio of the original |
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* image needs to preserved |
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* |
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* @param bool $bool |
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* @return self |
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*/ |
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public function SetPreserveAspectRatio($bool) |
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{ |
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$this->_preserveAspectRatio = (bool) $bool; |
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return $this; |
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} |
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public function Execute($imageResource) |
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{ |
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// Define the origial width and height |
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$originalWidth = imagesx($imageResource); |
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$originalHeight = imagesy($imageResource); |
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// Define the ratio and adjust the width and height |
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if ($this->_preserveAspectRatio) { |
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$ratio = min($this->_width/$originalWidth, $this->_height/$originalHeight); |
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$this->_width = $originalWidth * $ratio; |
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$this->_height = $originalHeight * $ratio; |
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} |
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// Create the new image |
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$new = imagecreatetruecolor($this->_width, $this->_height); |
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// Preserve transparency |
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imagecolortransparent($new, imagecolorallocatealpha($new, 0, 0, 0, 127)); |
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imagealphablending($new, false); |
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imagesavealpha($new, true); |
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// Do the actual resizing |
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imagecopyresampled($new, $imageResource, 0, 0, 0, 0, $this->_width, $this->_height, $originalWidth, $originalHeight); |
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return $new; |
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} |
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} |
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} |
jenskooij /
cloudcontrol
