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<?php |
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/** |
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* Grandstream-XMLApp |
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* |
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* Copyright (c) 2017 pudelek.org.pl |
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* |
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* @license MIT License (MIT) |
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* |
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* For the full copyright and license information, please view source file |
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* that is bundled with this package in the file LICENSE |
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* |
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* @author Marcin Pudełek <[email protected]> |
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*/ |
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namespace mrcnpdlk\Grandstream\XMLApp\Application\Model\Components; |
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use mrcnpdlk\Grandstream\XMLApp\Application\ModelInterface; |
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use mrcnpdlk\Grandstream\XMLApp\Exception; |
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use mrcnpdlk\Grandstream\XMLApp\Helper\Rectangle; |
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use mrcnpdlk\Grandstream\XMLApp\MyXML; |
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/** |
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* Class ElemBitmap |
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* |
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* This element is to display a bitmap picture on the screen. Inside the <Bitmap> tag of the XML document, |
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* the picture must be encoded in base64 format already. There are plenty of base64 encoder online |
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* provided for encoding the .bmp picture. Please make sure the original .bmp picture is in monochrome grey |
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* level 8 before encoding |
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* |
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* <ElemBitmap isfile="true/false" isflash=”true/false”> |
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* <Bitmap> Bitmap file encoded in base64 format </Bitmap> |
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* <X> X location </X> |
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* <Y> Y location </Y> |
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* </ElemBitmap |
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* |
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* @package mrcnpdlk\Grandstream\XMLApp\Application\Model\Components |
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*/ |
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class ElemBitmap extends ElemAbstract implements ModelInterface, ElemInterface |
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{ |
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/** |
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* @var boolean |
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*/ |
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private $isFile; |
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/** |
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* @var boolean |
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*/ |
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private $isFlash; |
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/** |
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* @var string |
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*/ |
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private $sImgPath; |
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/** |
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* @var Rectangle |
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*/ |
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private $oCanvas; |
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/** |
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* ElemBitmap constructor. |
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* |
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* @param string $sImgPath |
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* @param \mrcnpdlk\Grandstream\XMLApp\Helper\Rectangle $oRectangle |
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* |
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*/ |
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public function __construct(string $sImgPath, Rectangle $oRectangle) |
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{ |
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parent::__construct(); |
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$this->sImgPath = $sImgPath; |
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$this->oCanvas = $oRectangle; |
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$this->isFile = "false"; |
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$this->isFlash = "false"; |
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} |
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/** |
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* @return \mrcnpdlk\Grandstream\XMLApp\MyXML |
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*/ |
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function getXml(): MyXML |
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{ |
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$oXml = new MyXML('DisplayBitmap'); |
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$oXml->asObject()->addAttribute('isfile', $this->isFile); |
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$oXml->asObject()->addAttribute('isflash', $this->isFlash); |
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$oXml->asObject()->addChild('X', $this->getPoint()->getX()); |
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$oXml->asObject()->addChild('Y', $this->getPoint()->getY()); |
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$oXml->asObject()->addChild('Bitmap', $this->getBase64()); |
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return $oXml; |
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} |
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/** |
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* @return string |
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*/ |
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private function getBase64() |
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{ |
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if (!extension_loaded('imagick')) { |
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return base64_encode(file_get_contents(__DIR__ . '/../../../img/no_ext.bmp')); |
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} |
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try { |
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return base64_encode($this->resizeImage($this->oCanvas->getWidth(), $this->oCanvas->getHeight())->getImageBlob()); |
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} catch (\Exception $e) { |
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return base64_encode(file_get_contents(__DIR__ . '/../../../img/no_file.bmp.bmp')); |
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} |
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} |
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/** |
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* @param int $width |
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* @param int|null $height |
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* |
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* @return \Imagick |
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* @throws \mrcnpdlk\Grandstream\XMLApp\Exception |
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*/ |
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private function resizeImage(int $width = 100, int $height = null) |
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{ |
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if (!file_exists($this->sImgPath) || !is_readable($this->sImgPath)) { |
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throw new Exception('Image not exists'); |
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} |
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if (is_null($height)) { |
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$height = $width; |
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} |
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$imagick = new \Imagick(realpath($this->sImgPath)); |
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$canvasFactor = $width / $height; |
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$origWidth = $imagick->getImageWidth(); |
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$origHeight = $imagick->getImageHeight(); |
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$origFactor = $origWidth / $origHeight; |
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if ($origFactor > $canvasFactor) {//za rozciągniety |
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$imgWidth = $width; |
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$imgHeight = intval($width / $origFactor); |
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} else {//za wysoki |
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$imgHeight = $height; |
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$imgWidth = intval($height * $origFactor); |
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} |
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$imagick = $imagick->flattenImages(); |
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$imagick->setImageBackgroundColor(new \ImagickPixel('white')); |
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$imagick->setImageAlphaChannel(\Imagick::ALPHACHANNEL_DEACTIVATE); |
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$imagick->mergeImageLayers(\Imagick::LAYERMETHOD_FLATTEN); |
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$colors = min(255, $imagick->getImageColors()); |
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$imagick->quantizeImage($colors, \Imagick::COLORSPACE_GRAY, 0, false, false); |
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$imagick->setImageDepth(8 /* bits */); |
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$imagick->resizeImage($imgWidth, $imgHeight, \Imagick::FILTER_LANCZOS, 1, false); |
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$imagick->stripImage(); |
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$canvas = new \Imagick(); |
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$canvas->newImage($width, $height, new \ImagickPixel('white')); |
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$canvas->compositeImage($imagick, \Imagick::COMPOSITE_DEFAULT, intval(($width - $imgWidth) / 2), intval(($height - $imgHeight) / 2)); |
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$canvas->setImageFormat('BMP'); |
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return $canvas; |
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} |
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} |
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mrcnpdlk /
grandstream-xmlapp
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To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.