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<?php |
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/** |
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* Webino (https://github.com/webino/) |
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* |
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* @link https://github.com/webino/WebinoImageThumb/ for the canonical source repository |
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* @copyright Copyright (c) 2013-2016 Webino, s. r. o. (http://webino.sk/) |
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* @license BSD-3-Clause |
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*/ |
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namespace WebinoImageThumb\PhpThumb\Plugin; |
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use PHPThumb\GD as PHPThumb; |
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/** |
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* Add watermark to image |
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* |
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* @author Peter Bubelíny <[email protected]> |
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*/ |
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class Watermark implements \PHPThumb\PluginInterface |
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{ |
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/** |
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* @var PHPThumb $watermarkThumb |
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*/ |
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protected $watermarkThumb; |
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/** |
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* @var array $position |
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*/ |
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protected $position = [0, 0]; |
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/** |
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* @var float |
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*/ |
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protected $scale = .5; |
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/** |
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* @param PHPThumb $watermarkThumb |
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* @param array $position |
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* @param float $scale |
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*/ |
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public function __construct(PHPThumb $watermarkThumb, $position = [0, 0], $scale = .5) |
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{ |
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$this->watermarkThumb = $watermarkThumb; |
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$this->position = $position; |
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$this->scale = $scale; |
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} |
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/** |
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* @param PHPThumb $phpthumb |
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* @return PHPThumb |
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*/ |
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public function execute($phpthumb) |
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{ |
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$currentDimensions = $phpthumb->getCurrentDimensions(); |
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$width = $currentDimensions['width']; |
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$height = $currentDimensions['height']; |
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$oldImage = $phpthumb->getOldImage(); |
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$this->watermarkThumb->resize($width * $this->scale, $height * $this->scale); |
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$watermarkImage = $this->watermarkThumb->getOldImage(); |
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$watermarkCurrentDimensions = $this->watermarkThumb->getCurrentDimensions(); |
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$watermarkWidth = $watermarkCurrentDimensions['width']; |
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$watermarkHeight = $watermarkCurrentDimensions['height']; |
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switch ($this->position[0]) { |
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case -1: |
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$positionX = 0; |
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break; |
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case 1: |
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$positionX = $width - $watermarkWidth; |
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break; |
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default: |
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$positionX = $width / 2 - $watermarkWidth / 2; |
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} |
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switch ($this->position[1]) { |
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case -1: |
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$positionY = $height - $watermarkHeight; |
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break; |
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case 1: |
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$positionY = 0; |
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break; |
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default: |
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$positionY = $height / 2 - $watermarkHeight / 2; |
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} |
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imagealphablending($oldImage, true); |
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imagecopy($oldImage, $watermarkImage, $positionX, $positionY, 0, 0, $watermarkWidth, $watermarkHeight); |
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return $phpthumb; |
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} |
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} |
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webino /
WebinoImageThumb
